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-rw-r--r--public/js/vendor/codemirror/LICENSE21
-rw-r--r--public/js/vendor/codemirror/SOURCE1
-rw-r--r--public/js/vendor/codemirror/VERSION1
-rw-r--r--public/js/vendor/codemirror/addon/dialog/dialog.js157
-rw-r--r--public/js/vendor/codemirror/addon/search/jump-to-line.js49
-rw-r--r--public/js/vendor/codemirror/addon/search/match-highlighter.js165
-rw-r--r--public/js/vendor/codemirror/addon/search/matchesonscrollbar.js97
-rw-r--r--public/js/vendor/codemirror/addon/search/search.js252
-rw-r--r--public/js/vendor/codemirror/addon/search/searchcursor.js289
-rw-r--r--public/js/vendor/codemirror/codemirror.js9622
-rw-r--r--public/js/vendor/codemirror/mode/yaml.js118
11 files changed, 10772 insertions, 0 deletions
diff --git a/public/js/vendor/codemirror/LICENSE b/public/js/vendor/codemirror/LICENSE
new file mode 100644
index 0000000..ff7db4b
--- /dev/null
+++ b/public/js/vendor/codemirror/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (C) 2017 by Marijn Haverbeke <marijnh@gmail.com> and others
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/public/js/vendor/codemirror/SOURCE b/public/js/vendor/codemirror/SOURCE
new file mode 100644
index 0000000..988f797
--- /dev/null
+++ b/public/js/vendor/codemirror/SOURCE
@@ -0,0 +1 @@
+https://github.com/codemirror/codemirror
diff --git a/public/js/vendor/codemirror/VERSION b/public/js/vendor/codemirror/VERSION
new file mode 100644
index 0000000..148cf61
--- /dev/null
+++ b/public/js/vendor/codemirror/VERSION
@@ -0,0 +1 @@
+5.30.0
diff --git a/public/js/vendor/codemirror/addon/dialog/dialog.js b/public/js/vendor/codemirror/addon/dialog/dialog.js
new file mode 100644
index 0000000..f10bb5b
--- /dev/null
+++ b/public/js/vendor/codemirror/addon/dialog/dialog.js
@@ -0,0 +1,157 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// Open simple dialogs on top of an editor. Relies on dialog.css.
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+ function dialogDiv(cm, template, bottom) {
+ var wrap = cm.getWrapperElement();
+ var dialog;
+ dialog = wrap.appendChild(document.createElement("div"));
+ if (bottom)
+ dialog.className = "CodeMirror-dialog CodeMirror-dialog-bottom";
+ else
+ dialog.className = "CodeMirror-dialog CodeMirror-dialog-top";
+
+ if (typeof template == "string") {
+ dialog.innerHTML = template;
+ } else { // Assuming it's a detached DOM element.
+ dialog.appendChild(template);
+ }
+ return dialog;
+ }
+
+ function closeNotification(cm, newVal) {
+ if (cm.state.currentNotificationClose)
+ cm.state.currentNotificationClose();
+ cm.state.currentNotificationClose = newVal;
+ }
+
+ CodeMirror.defineExtension("openDialog", function(template, callback, options) {
+ if (!options) options = {};
+
+ closeNotification(this, null);
+
+ var dialog = dialogDiv(this, template, options.bottom);
+ var closed = false, me = this;
+ function close(newVal) {
+ if (typeof newVal == 'string') {
+ inp.value = newVal;
+ } else {
+ if (closed) return;
+ closed = true;
+ dialog.parentNode.removeChild(dialog);
+ me.focus();
+
+ if (options.onClose) options.onClose(dialog);
+ }
+ }
+
+ var inp = dialog.getElementsByTagName("input")[0], button;
+ if (inp) {
+ inp.focus();
+
+ if (options.value) {
+ inp.value = options.value;
+ if (options.selectValueOnOpen !== false) {
+ inp.select();
+ }
+ }
+
+ if (options.onInput)
+ CodeMirror.on(inp, "input", function(e) { options.onInput(e, inp.value, close);});
+ if (options.onKeyUp)
+ CodeMirror.on(inp, "keyup", function(e) {options.onKeyUp(e, inp.value, close);});
+
+ CodeMirror.on(inp, "keydown", function(e) {
+ if (options && options.onKeyDown && options.onKeyDown(e, inp.value, close)) { return; }
+ if (e.keyCode == 27 || (options.closeOnEnter !== false && e.keyCode == 13)) {
+ inp.blur();
+ CodeMirror.e_stop(e);
+ close();
+ }
+ if (e.keyCode == 13) callback(inp.value, e);
+ });
+
+ if (options.closeOnBlur !== false) CodeMirror.on(inp, "blur", close);
+ } else if (button = dialog.getElementsByTagName("button")[0]) {
+ CodeMirror.on(button, "click", function() {
+ close();
+ me.focus();
+ });
+
+ if (options.closeOnBlur !== false) CodeMirror.on(button, "blur", close);
+
+ button.focus();
+ }
+ return close;
+ });
+
+ CodeMirror.defineExtension("openConfirm", function(template, callbacks, options) {
+ closeNotification(this, null);
+ var dialog = dialogDiv(this, template, options && options.bottom);
+ var buttons = dialog.getElementsByTagName("button");
+ var closed = false, me = this, blurring = 1;
+ function close() {
+ if (closed) return;
+ closed = true;
+ dialog.parentNode.removeChild(dialog);
+ me.focus();
+ }
+ buttons[0].focus();
+ for (var i = 0; i < buttons.length; ++i) {
+ var b = buttons[i];
+ (function(callback) {
+ CodeMirror.on(b, "click", function(e) {
+ CodeMirror.e_preventDefault(e);
+ close();
+ if (callback) callback(me);
+ });
+ })(callbacks[i]);
+ CodeMirror.on(b, "blur", function() {
+ --blurring;
+ setTimeout(function() { if (blurring <= 0) close(); }, 200);
+ });
+ CodeMirror.on(b, "focus", function() { ++blurring; });
+ }
+ });
+
+ /*
+ * openNotification
+ * Opens a notification, that can be closed with an optional timer
+ * (default 5000ms timer) and always closes on click.
+ *
+ * If a notification is opened while another is opened, it will close the
+ * currently opened one and open the new one immediately.
+ */
+ CodeMirror.defineExtension("openNotification", function(template, options) {
+ closeNotification(this, close);
+ var dialog = dialogDiv(this, template, options && options.bottom);
+ var closed = false, doneTimer;
+ var duration = options && typeof options.duration !== "undefined" ? options.duration : 5000;
+
+ function close() {
+ if (closed) return;
+ closed = true;
+ clearTimeout(doneTimer);
+ dialog.parentNode.removeChild(dialog);
+ }
+
+ CodeMirror.on(dialog, 'click', function(e) {
+ CodeMirror.e_preventDefault(e);
+ close();
+ });
+
+ if (duration)
+ doneTimer = setTimeout(close, duration);
+
+ return close;
+ });
+});
diff --git a/public/js/vendor/codemirror/addon/search/jump-to-line.js b/public/js/vendor/codemirror/addon/search/jump-to-line.js
new file mode 100644
index 0000000..8b599cb
--- /dev/null
+++ b/public/js/vendor/codemirror/addon/search/jump-to-line.js
@@ -0,0 +1,49 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// Defines jumpToLine command. Uses dialog.js if present.
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"), require("../dialog/dialog"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror", "../dialog/dialog"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+ "use strict";
+
+ function dialog(cm, text, shortText, deflt, f) {
+ if (cm.openDialog) cm.openDialog(text, f, {value: deflt, selectValueOnOpen: true});
+ else f(prompt(shortText, deflt));
+ }
+
+ var jumpDialog =
+ 'Jump to line: <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">(Use line:column or scroll% syntax)</span>';
+
+ function interpretLine(cm, string) {
+ var num = Number(string)
+ if (/^[-+]/.test(string)) return cm.getCursor().line + num
+ else return num - 1
+ }
+
+ CodeMirror.commands.jumpToLine = function(cm) {
+ var cur = cm.getCursor();
+ dialog(cm, jumpDialog, "Jump to line:", (cur.line + 1) + ":" + cur.ch, function(posStr) {
+ if (!posStr) return;
+
+ var match;
+ if (match = /^\s*([\+\-]?\d+)\s*\:\s*(\d+)\s*$/.exec(posStr)) {
+ cm.setCursor(interpretLine(cm, match[1]), Number(match[2]))
+ } else if (match = /^\s*([\+\-]?\d+(\.\d+)?)\%\s*/.exec(posStr)) {
+ var line = Math.round(cm.lineCount() * Number(match[1]) / 100);
+ if (/^[-+]/.test(match[1])) line = cur.line + line + 1;
+ cm.setCursor(line - 1, cur.ch);
+ } else if (match = /^\s*\:?\s*([\+\-]?\d+)\s*/.exec(posStr)) {
+ cm.setCursor(interpretLine(cm, match[1]), cur.ch);
+ }
+ });
+ };
+
+ CodeMirror.keyMap["default"]["Alt-G"] = "jumpToLine";
+});
diff --git a/public/js/vendor/codemirror/addon/search/match-highlighter.js b/public/js/vendor/codemirror/addon/search/match-highlighter.js
new file mode 100644
index 0000000..73ba0e0
--- /dev/null
+++ b/public/js/vendor/codemirror/addon/search/match-highlighter.js
@@ -0,0 +1,165 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// Highlighting text that matches the selection
+//
+// Defines an option highlightSelectionMatches, which, when enabled,
+// will style strings that match the selection throughout the
+// document.
+//
+// The option can be set to true to simply enable it, or to a
+// {minChars, style, wordsOnly, showToken, delay} object to explicitly
+// configure it. minChars is the minimum amount of characters that should be
+// selected for the behavior to occur, and style is the token style to
+// apply to the matches. This will be prefixed by "cm-" to create an
+// actual CSS class name. If wordsOnly is enabled, the matches will be
+// highlighted only if the selected text is a word. showToken, when enabled,
+// will cause the current token to be highlighted when nothing is selected.
+// delay is used to specify how much time to wait, in milliseconds, before
+// highlighting the matches. If annotateScrollbar is enabled, the occurences
+// will be highlighted on the scrollbar via the matchesonscrollbar addon.
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"), require("./matchesonscrollbar"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror", "./matchesonscrollbar"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+ "use strict";
+
+ var defaults = {
+ style: "matchhighlight",
+ minChars: 2,
+ delay: 100,
+ wordsOnly: false,
+ annotateScrollbar: false,
+ showToken: false,
+ trim: true
+ }
+
+ function State(options) {
+ this.options = {}
+ for (var name in defaults)
+ this.options[name] = (options && options.hasOwnProperty(name) ? options : defaults)[name]
+ this.overlay = this.timeout = null;
+ this.matchesonscroll = null;
+ this.active = false;
+ }
+
+ CodeMirror.defineOption("highlightSelectionMatches", false, function(cm, val, old) {
+ if (old && old != CodeMirror.Init) {
+ removeOverlay(cm);
+ clearTimeout(cm.state.matchHighlighter.timeout);
+ cm.state.matchHighlighter = null;
+ cm.off("cursorActivity", cursorActivity);
+ cm.off("focus", onFocus)
+ }
+ if (val) {
+ var state = cm.state.matchHighlighter = new State(val);
+ if (cm.hasFocus()) {
+ state.active = true
+ highlightMatches(cm)
+ } else {
+ cm.on("focus", onFocus)
+ }
+ cm.on("cursorActivity", cursorActivity);
+ }
+ });
+
+ function cursorActivity(cm) {
+ var state = cm.state.matchHighlighter;
+ if (state.active || cm.hasFocus()) scheduleHighlight(cm, state)
+ }
+
+ function onFocus(cm) {
+ var state = cm.state.matchHighlighter
+ if (!state.active) {
+ state.active = true
+ scheduleHighlight(cm, state)
+ }
+ }
+
+ function scheduleHighlight(cm, state) {
+ clearTimeout(state.timeout);
+ state.timeout = setTimeout(function() {highlightMatches(cm);}, state.options.delay);
+ }
+
+ function addOverlay(cm, query, hasBoundary, style) {
+ var state = cm.state.matchHighlighter;
+ cm.addOverlay(state.overlay = makeOverlay(query, hasBoundary, style));
+ if (state.options.annotateScrollbar && cm.showMatchesOnScrollbar) {
+ var searchFor = hasBoundary ? new RegExp("\\b" + query + "\\b") : query;
+ state.matchesonscroll = cm.showMatchesOnScrollbar(searchFor, false,
+ {className: "CodeMirror-selection-highlight-scrollbar"});
+ }
+ }
+
+ function removeOverlay(cm) {
+ var state = cm.state.matchHighlighter;
+ if (state.overlay) {
+ cm.removeOverlay(state.overlay);
+ state.overlay = null;
+ if (state.matchesonscroll) {
+ state.matchesonscroll.clear();
+ state.matchesonscroll = null;
+ }
+ }
+ }
+
+ function highlightMatches(cm) {
+ cm.operation(function() {
+ var state = cm.state.matchHighlighter;
+ removeOverlay(cm);
+ if (!cm.somethingSelected() && state.options.showToken) {
+ var re = state.options.showToken === true ? /[\w$]/ : state.options.showToken;
+ var cur = cm.getCursor(), line = cm.getLine(cur.line), start = cur.ch, end = start;
+ while (start && re.test(line.charAt(start - 1))) --start;
+ while (end < line.length && re.test(line.charAt(end))) ++end;
+ if (start < end)
+ addOverlay(cm, line.slice(start, end), re, state.options.style);
+ return;
+ }
+ var from = cm.getCursor("from"), to = cm.getCursor("to");
+ if (from.line != to.line) return;
+ if (state.options.wordsOnly && !isWord(cm, from, to)) return;
+ var selection = cm.getRange(from, to)
+ if (state.options.trim) selection = selection.replace(/^\s+|\s+$/g, "")
+ if (selection.length >= state.options.minChars)
+ addOverlay(cm, selection, false, state.options.style);
+ });
+ }
+
+ function isWord(cm, from, to) {
+ var str = cm.getRange(from, to);
+ if (str.match(/^\w+$/) !== null) {
+ if (from.ch > 0) {
+ var pos = {line: from.line, ch: from.ch - 1};
+ var chr = cm.getRange(pos, from);
+ if (chr.match(/\W/) === null) return false;
+ }
+ if (to.ch < cm.getLine(from.line).length) {
+ var pos = {line: to.line, ch: to.ch + 1};
+ var chr = cm.getRange(to, pos);
+ if (chr.match(/\W/) === null) return false;
+ }
+ return true;
+ } else return false;
+ }
+
+ function boundariesAround(stream, re) {
+ return (!stream.start || !re.test(stream.string.charAt(stream.start - 1))) &&
+ (stream.pos == stream.string.length || !re.test(stream.string.charAt(stream.pos)));
+ }
+
+ function makeOverlay(query, hasBoundary, style) {
+ return {token: function(stream) {
+ if (stream.match(query) &&
+ (!hasBoundary || boundariesAround(stream, hasBoundary)))
+ return style;
+ stream.next();
+ stream.skipTo(query.charAt(0)) || stream.skipToEnd();
+ }};
+ }
+});
diff --git a/public/js/vendor/codemirror/addon/search/matchesonscrollbar.js b/public/js/vendor/codemirror/addon/search/matchesonscrollbar.js
new file mode 100644
index 0000000..8d19228
--- /dev/null
+++ b/public/js/vendor/codemirror/addon/search/matchesonscrollbar.js
@@ -0,0 +1,97 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"), require("./searchcursor"), require("../scroll/annotatescrollbar"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror", "./searchcursor", "../scroll/annotatescrollbar"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+ "use strict";
+
+ CodeMirror.defineExtension("showMatchesOnScrollbar", function(query, caseFold, options) {
+ if (typeof options == "string") options = {className: options};
+ if (!options) options = {};
+ return new SearchAnnotation(this, query, caseFold, options);
+ });
+
+ function SearchAnnotation(cm, query, caseFold, options) {
+ this.cm = cm;
+ this.options = options;
+ var annotateOptions = {listenForChanges: false};
+ for (var prop in options) annotateOptions[prop] = options[prop];
+ if (!annotateOptions.className) annotateOptions.className = "CodeMirror-search-match";
+ this.annotation = cm.annotateScrollbar(annotateOptions);
+ this.query = query;
+ this.caseFold = caseFold;
+ this.gap = {from: cm.firstLine(), to: cm.lastLine() + 1};
+ this.matches = [];
+ this.update = null;
+
+ this.findMatches();
+ this.annotation.update(this.matches);
+
+ var self = this;
+ cm.on("change", this.changeHandler = function(_cm, change) { self.onChange(change); });
+ }
+
+ var MAX_MATCHES = 1000;
+
+ SearchAnnotation.prototype.findMatches = function() {
+ if (!this.gap) return;
+ for (var i = 0; i < this.matches.length; i++) {
+ var match = this.matches[i];
+ if (match.from.line >= this.gap.to) break;
+ if (match.to.line >= this.gap.from) this.matches.splice(i--, 1);
+ }
+ var cursor = this.cm.getSearchCursor(this.query, CodeMirror.Pos(this.gap.from, 0), this.caseFold);
+ var maxMatches = this.options && this.options.maxMatches || MAX_MATCHES;
+ while (cursor.findNext()) {
+ var match = {from: cursor.from(), to: cursor.to()};
+ if (match.from.line >= this.gap.to) break;
+ this.matches.splice(i++, 0, match);
+ if (this.matches.length > maxMatches) break;
+ }
+ this.gap = null;
+ };
+
+ function offsetLine(line, changeStart, sizeChange) {
+ if (line <= changeStart) return line;
+ return Math.max(changeStart, line + sizeChange);
+ }
+
+ SearchAnnotation.prototype.onChange = function(change) {
+ var startLine = change.from.line;
+ var endLine = CodeMirror.changeEnd(change).line;
+ var sizeChange = endLine - change.to.line;
+ if (this.gap) {
+ this.gap.from = Math.min(offsetLine(this.gap.from, startLine, sizeChange), change.from.line);
+ this.gap.to = Math.max(offsetLine(this.gap.to, startLine, sizeChange), change.from.line);
+ } else {
+ this.gap = {from: change.from.line, to: endLine + 1};
+ }
+
+ if (sizeChange) for (var i = 0; i < this.matches.length; i++) {
+ var match = this.matches[i];
+ var newFrom = offsetLine(match.from.line, startLine, sizeChange);
+ if (newFrom != match.from.line) match.from = CodeMirror.Pos(newFrom, match.from.ch);
+ var newTo = offsetLine(match.to.line, startLine, sizeChange);
+ if (newTo != match.to.line) match.to = CodeMirror.Pos(newTo, match.to.ch);
+ }
+ clearTimeout(this.update);
+ var self = this;
+ this.update = setTimeout(function() { self.updateAfterChange(); }, 250);
+ };
+
+ SearchAnnotation.prototype.updateAfterChange = function() {
+ this.findMatches();
+ this.annotation.update(this.matches);
+ };
+
+ SearchAnnotation.prototype.clear = function() {
+ this.cm.off("change", this.changeHandler);
+ this.annotation.clear();
+ };
+});
diff --git a/public/js/vendor/codemirror/addon/search/search.js b/public/js/vendor/codemirror/addon/search/search.js
new file mode 100644
index 0000000..4059ccd
--- /dev/null
+++ b/public/js/vendor/codemirror/addon/search/search.js
@@ -0,0 +1,252 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// Define search commands. Depends on dialog.js or another
+// implementation of the openDialog method.
+
+// Replace works a little oddly -- it will do the replace on the next
+// Ctrl-G (or whatever is bound to findNext) press. You prevent a
+// replace by making sure the match is no longer selected when hitting
+// Ctrl-G.
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"), require("./searchcursor"), require("../dialog/dialog"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror", "./searchcursor", "../dialog/dialog"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+ "use strict";
+
+ function searchOverlay(query, caseInsensitive) {
+ if (typeof query == "string")
+ query = new RegExp(query.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&"), caseInsensitive ? "gi" : "g");
+ else if (!query.global)
+ query = new RegExp(query.source, query.ignoreCase ? "gi" : "g");
+
+ return {token: function(stream) {
+ query.lastIndex = stream.pos;
+ var match = query.exec(stream.string);
+ if (match && match.index == stream.pos) {
+ stream.pos += match[0].length || 1;
+ return "searching";
+ } else if (match) {
+ stream.pos = match.index;
+ } else {
+ stream.skipToEnd();
+ }
+ }};
+ }
+
+ function SearchState() {
+ this.posFrom = this.posTo = this.lastQuery = this.query = null;
+ this.overlay = null;
+ }
+
+ function getSearchState(cm) {
+ return cm.state.search || (cm.state.search = new SearchState());
+ }
+
+ function queryCaseInsensitive(query) {
+ return typeof query == "string" && query == query.toLowerCase();
+ }
+
+ function getSearchCursor(cm, query, pos) {
+ // Heuristic: if the query string is all lowercase, do a case insensitive search.
+ return cm.getSearchCursor(query, pos, {caseFold: queryCaseInsensitive(query), multiline: true});
+ }
+
+ function persistentDialog(cm, text, deflt, onEnter, onKeyDown) {
+ cm.openDialog(text, onEnter, {
+ value: deflt,
+ selectValueOnOpen: true,
+ closeOnEnter: false,
+ onClose: function() { clearSearch(cm); },
+ onKeyDown: onKeyDown
+ });
+ }
+
+ function dialog(cm, text, shortText, deflt, f) {
+ if (cm.openDialog) cm.openDialog(text, f, {value: deflt, selectValueOnOpen: true});
+ else f(prompt(shortText, deflt));
+ }
+
+ function confirmDialog(cm, text, shortText, fs) {
+ if (cm.openConfirm) cm.openConfirm(text, fs);
+ else if (confirm(shortText)) fs[0]();
+ }
+
+ function parseString(string) {
+ return string.replace(/\\(.)/g, function(_, ch) {
+ if (ch == "n") return "\n"
+ if (ch == "r") return "\r"
+ return ch
+ })
+ }
+
+ function parseQuery(query) {
+ var isRE = query.match(/^\/(.*)\/([a-z]*)$/);
+ if (isRE) {
+ try { query = new RegExp(isRE[1], isRE[2].indexOf("i") == -1 ? "" : "i"); }
+ catch(e) {} // Not a regular expression after all, do a string search
+ } else {
+ query = parseString(query)
+ }
+ if (typeof query == "string" ? query == "" : query.test(""))
+ query = /x^/;
+ return query;
+ }
+
+ var queryDialog =
+ '<span class="CodeMirror-search-label">Search:</span> <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">(Use /re/ syntax for regexp search)</span>';
+
+ function startSearch(cm, state, query) {
+ state.queryText = query;
+ state.query = parseQuery(query);
+ cm.removeOverlay(state.overlay, queryCaseInsensitive(state.query));
+ state.overlay = searchOverlay(state.query, queryCaseInsensitive(state.query));
+ cm.addOverlay(state.overlay);
+ if (cm.showMatchesOnScrollbar) {
+ if (state.annotate) { state.annotate.clear(); state.annotate = null; }
+ state.annotate = cm.showMatchesOnScrollbar(state.query, queryCaseInsensitive(state.query));
+ }
+ }
+
+ function doSearch(cm, rev, persistent, immediate) {
+ var state = getSearchState(cm);
+ if (state.query) return findNext(cm, rev);
+ var q = cm.getSelection() || state.lastQuery;
+ if (q instanceof RegExp && q.source == "x^") q = null
+ if (persistent && cm.openDialog) {
+ var hiding = null
+ var searchNext = function(query, event) {
+ CodeMirror.e_stop(event);
+ if (!query) return;
+ if (query != state.queryText) {
+ startSearch(cm, state, query);
+ state.posFrom = state.posTo = cm.getCursor();
+ }
+ if (hiding) hiding.style.opacity = 1
+ findNext(cm, event.shiftKey, function(_, to) {
+ var dialog
+ if (to.line < 3 && document.querySelector &&
+ (dialog = cm.display.wrapper.querySelector(".CodeMirror-dialog")) &&
+ dialog.getBoundingClientRect().bottom - 4 > cm.cursorCoords(to, "window").top)
+ (hiding = dialog).style.opacity = .4
+ })
+ };
+ persistentDialog(cm, queryDialog, q, searchNext, function(event, query) {
+ var keyName = CodeMirror.keyName(event)
+ var extra = cm.getOption('extraKeys'), cmd = (extra && extra[keyName]) || CodeMirror.keyMap[cm.getOption("keyMap")][keyName]
+ if (cmd == "findNext" || cmd == "findPrev" ||
+ cmd == "findPersistentNext" || cmd == "findPersistentPrev") {
+ CodeMirror.e_stop(event);
+ startSearch(cm, getSearchState(cm), query);
+ cm.execCommand(cmd);
+ } else if (cmd == "find" || cmd == "findPersistent") {
+ CodeMirror.e_stop(event);
+ searchNext(query, event);
+ }
+ });
+ if (immediate && q) {
+ startSearch(cm, state, q);
+ findNext(cm, rev);
+ }
+ } else {
+ dialog(cm, queryDialog, "Search for:", q, function(query) {
+ if (query && !state.query) cm.operation(function() {
+ startSearch(cm, state, query);
+ state.posFrom = state.posTo = cm.getCursor();
+ findNext(cm, rev);
+ });
+ });
+ }
+ }
+
+ function findNext(cm, rev, callback) {cm.operation(function() {
+ var state = getSearchState(cm);
+ var cursor = getSearchCursor(cm, state.query, rev ? state.posFrom : state.posTo);
+ if (!cursor.find(rev)) {
+ cursor = getSearchCursor(cm, state.query, rev ? CodeMirror.Pos(cm.lastLine()) : CodeMirror.Pos(cm.firstLine(), 0));
+ if (!cursor.find(rev)) return;
+ }
+ cm.setSelection(cursor.from(), cursor.to());
+ cm.scrollIntoView({from: cursor.from(), to: cursor.to()}, 20);
+ state.posFrom = cursor.from(); state.posTo = cursor.to();
+ if (callback) callback(cursor.from(), cursor.to())
+ });}
+
+ function clearSearch(cm) {cm.operation(function() {
+ var state = getSearchState(cm);
+ state.lastQuery = state.query;
+ if (!state.query) return;
+ state.query = state.queryText = null;
+ cm.removeOverlay(state.overlay);
+ if (state.annotate) { state.annotate.clear(); state.annotate = null; }
+ });}
+
+ var replaceQueryDialog =
+ ' <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">(Use /re/ syntax for regexp search)</span>';
+ var replacementQueryDialog = '<span class="CodeMirror-search-label">With:</span> <input type="text" style="width: 10em" class="CodeMirror-search-field"/>';
+ var doReplaceConfirm = '<span class="CodeMirror-search-label">Replace?</span> <button>Yes</button> <button>No</button> <button>All</button> <button>Stop</button>';
+
+ function replaceAll(cm, query, text) {
+ cm.operation(function() {
+ for (var cursor = getSearchCursor(cm, query); cursor.findNext();) {
+ if (typeof query != "string") {
+ var match = cm.getRange(cursor.from(), cursor.to()).match(query);
+ cursor.replace(text.replace(/\$(\d)/g, function(_, i) {return match[i];}));
+ } else cursor.replace(text);
+ }
+ });
+ }
+
+ function replace(cm, all) {
+ if (cm.getOption("readOnly")) return;
+ var query = cm.getSelection() || getSearchState(cm).lastQuery;
+ var dialogText = '<span class="CodeMirror-search-label">' + (all ? 'Replace all:' : 'Replace:') + '</span>';
+ dialog(cm, dialogText + replaceQueryDialog, dialogText, query, function(query) {
+ if (!query) return;
+ query = parseQuery(query);
+ dialog(cm, replacementQueryDialog, "Replace with:", "", function(text) {
+ text = parseString(text)
+ if (all) {
+ replaceAll(cm, query, text)
+ } else {
+ clearSearch(cm);
+ var cursor = getSearchCursor(cm, query, cm.getCursor("from"));
+ var advance = function() {
+ var start = cursor.from(), match;
+ if (!(match = cursor.findNext())) {
+ cursor = getSearchCursor(cm, query);
+ if (!(match = cursor.findNext()) ||
+ (start && cursor.from().line == start.line && cursor.from().ch == start.ch)) return;
+ }
+ cm.setSelection(cursor.from(), cursor.to());
+ cm.scrollIntoView({from: cursor.from(), to: cursor.to()});
+ confirmDialog(cm, doReplaceConfirm, "Replace?",
+ [function() {doReplace(match);}, advance,
+ function() {replaceAll(cm, query, text)}]);
+ };
+ var doReplace = function(match) {
+ cursor.replace(typeof query == "string" ? text :
+ text.replace(/\$(\d)/g, function(_, i) {return match[i];}));
+ advance();
+ };
+ advance();
+ }
+ });
+ });
+ }
+
+ CodeMirror.commands.find = function(cm) {clearSearch(cm); doSearch(cm);};
+ CodeMirror.commands.findPersistent = function(cm) {clearSearch(cm); doSearch(cm, false, true);};
+ CodeMirror.commands.findPersistentNext = function(cm) {doSearch(cm, false, true, true);};
+ CodeMirror.commands.findPersistentPrev = function(cm) {doSearch(cm, true, true, true);};
+ CodeMirror.commands.findNext = doSearch;
+ CodeMirror.commands.findPrev = function(cm) {doSearch(cm, true);};
+ CodeMirror.commands.clearSearch = clearSearch;
+ CodeMirror.commands.replace = replace;
+ CodeMirror.commands.replaceAll = function(cm) {replace(cm, true);};
+});
diff --git a/public/js/vendor/codemirror/addon/search/searchcursor.js b/public/js/vendor/codemirror/addon/search/searchcursor.js
new file mode 100644
index 0000000..eccd81a
--- /dev/null
+++ b/public/js/vendor/codemirror/addon/search/searchcursor.js
@@ -0,0 +1,289 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"))
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror"], mod)
+ else // Plain browser env
+ mod(CodeMirror)
+})(function(CodeMirror) {
+ "use strict"
+ var Pos = CodeMirror.Pos
+
+ function regexpFlags(regexp) {
+ var flags = regexp.flags
+ return flags != null ? flags : (regexp.ignoreCase ? "i" : "")
+ + (regexp.global ? "g" : "")
+ + (regexp.multiline ? "m" : "")
+ }
+
+ function ensureGlobal(regexp) {
+ return regexp.global ? regexp : new RegExp(regexp.source, regexpFlags(regexp) + "g")
+ }
+
+ function maybeMultiline(regexp) {
+ return /\\s|\\n|\n|\\W|\\D|\[\^/.test(regexp.source)
+ }
+
+ function searchRegexpForward(doc, regexp, start) {
+ regexp = ensureGlobal(regexp)
+ for (var line = start.line, ch = start.ch, last = doc.lastLine(); line <= last; line++, ch = 0) {
+ regexp.lastIndex = ch
+ var string = doc.getLine(line), match = regexp.exec(string)
+ if (match)
+ return {from: Pos(line, match.index),
+ to: Pos(line, match.index + match[0].length),
+ match: match}
+ }
+ }
+
+ function searchRegexpForwardMultiline(doc, regexp, start) {
+ if (!maybeMultiline(regexp)) return searchRegexpForward(doc, regexp, start)
+
+ regexp = ensureGlobal(regexp)
+ var string, chunk = 1
+ for (var line = start.line, last = doc.lastLine(); line <= last;) {
+ // This grows the search buffer in exponentially-sized chunks
+ // between matches, so that nearby matches are fast and don't
+ // require concatenating the whole document (in case we're
+ // searching for something that has tons of matches), but at the
+ // same time, the amount of retries is limited.
+ for (var i = 0; i < chunk; i++) {
+ var curLine = doc.getLine(line++)
+ string = string == null ? curLine : string + "\n" + curLine
+ }
+ chunk = chunk * 2
+ regexp.lastIndex = start.ch
+ var match = regexp.exec(string)
+ if (match) {
+ var before = string.slice(0, match.index).split("\n"), inside = match[0].split("\n")
+ var startLine = start.line + before.length - 1, startCh = before[before.length - 1].length
+ return {from: Pos(startLine, startCh),
+ to: Pos(startLine + inside.length - 1,
+ inside.length == 1 ? startCh + inside[0].length : inside[inside.length - 1].length),
+ match: match}
+ }
+ }
+ }
+
+ function lastMatchIn(string, regexp) {
+ var cutOff = 0, match
+ for (;;) {
+ regexp.lastIndex = cutOff
+ var newMatch = regexp.exec(string)
+ if (!newMatch) return match
+ match = newMatch
+ cutOff = match.index + (match[0].length || 1)
+ if (cutOff == string.length) return match
+ }
+ }
+
+ function searchRegexpBackward(doc, regexp, start) {
+ regexp = ensureGlobal(regexp)
+ for (var line = start.line, ch = start.ch, first = doc.firstLine(); line >= first; line--, ch = -1) {
+ var string = doc.getLine(line)
+ if (ch > -1) string = string.slice(0, ch)
+ var match = lastMatchIn(string, regexp)
+ if (match)
+ return {from: Pos(line, match.index),
+ to: Pos(line, match.index + match[0].length),
+ match: match}
+ }
+ }
+
+ function searchRegexpBackwardMultiline(doc, regexp, start) {
+ regexp = ensureGlobal(regexp)
+ var string, chunk = 1
+ for (var line = start.line, first = doc.firstLine(); line >= first;) {
+ for (var i = 0; i < chunk; i++) {
+ var curLine = doc.getLine(line--)
+ string = string == null ? curLine.slice(0, start.ch) : curLine + "\n" + string
+ }
+ chunk *= 2
+
+ var match = lastMatchIn(string, regexp)
+ if (match) {
+ var before = string.slice(0, match.index).split("\n"), inside = match[0].split("\n")
+ var startLine = line + before.length, startCh = before[before.length - 1].length
+ return {from: Pos(startLine, startCh),
+ to: Pos(startLine + inside.length - 1,
+ inside.length == 1 ? startCh + inside[0].length : inside[inside.length - 1].length),
+ match: match}
+ }
+ }
+ }
+
+ var doFold, noFold
+ if (String.prototype.normalize) {
+ doFold = function(str) { return str.normalize("NFD").toLowerCase() }
+ noFold = function(str) { return str.normalize("NFD") }
+ } else {
+ doFold = function(str) { return str.toLowerCase() }
+ noFold = function(str) { return str }
+ }
+
+ // Maps a position in a case-folded line back to a position in the original line
+ // (compensating for codepoints increasing in number during folding)
+ function adjustPos(orig, folded, pos, foldFunc) {
+ if (orig.length == folded.length) return pos
+ for (var min = 0, max = pos + Math.max(0, orig.length - folded.length);;) {
+ if (min == max) return min
+ var mid = (min + max) >> 1
+ var len = foldFunc(orig.slice(0, mid)).length
+ if (len == pos) return mid
+ else if (len > pos) max = mid
+ else min = mid + 1
+ }
+ }
+
+ function searchStringForward(doc, query, start, caseFold) {
+ // Empty string would match anything and never progress, so we
+ // define it to match nothing instead.
+ if (!query.length) return null
+ var fold = caseFold ? doFold : noFold
+ var lines = fold(query).split(/\r|\n\r?/)
+
+ search: for (var line = start.line, ch = start.ch, last = doc.lastLine() + 1 - lines.length; line <= last; line++, ch = 0) {
+ var orig = doc.getLine(line).slice(ch), string = fold(orig)
+ if (lines.length == 1) {
+ var found = string.indexOf(lines[0])
+ if (found == -1) continue search
+ var start = adjustPos(orig, string, found, fold) + ch
+ return {from: Pos(line, adjustPos(orig, string, found, fold) + ch),
+ to: Pos(line, adjustPos(orig, string, found + lines[0].length, fold) + ch)}
+ } else {
+ var cutFrom = string.length - lines[0].length
+ if (string.slice(cutFrom) != lines[0]) continue search
+ for (var i = 1; i < lines.length - 1; i++)
+ if (fold(doc.getLine(line + i)) != lines[i]) continue search
+ var end = doc.getLine(line + lines.length - 1), endString = fold(end), lastLine = lines[lines.length - 1]
+ if (end.slice(0, lastLine.length) != lastLine) continue search
+ return {from: Pos(line, adjustPos(orig, string, cutFrom, fold) + ch),
+ to: Pos(line + lines.length - 1, adjustPos(end, endString, lastLine.length, fold))}
+ }
+ }
+ }
+
+ function searchStringBackward(doc, query, start, caseFold) {
+ if (!query.length) return null
+ var fold = caseFold ? doFold : noFold
+ var lines = fold(query).split(/\r|\n\r?/)
+
+ search: for (var line = start.line, ch = start.ch, first = doc.firstLine() - 1 + lines.length; line >= first; line--, ch = -1) {
+ var orig = doc.getLine(line)
+ if (ch > -1) orig = orig.slice(0, ch)
+ var string = fold(orig)
+ if (lines.length == 1) {
+ var found = string.lastIndexOf(lines[0])
+ if (found == -1) continue search
+ return {from: Pos(line, adjustPos(orig, string, found, fold)),
+ to: Pos(line, adjustPos(orig, string, found + lines[0].length, fold))}
+ } else {
+ var lastLine = lines[lines.length - 1]
+ if (string.slice(0, lastLine.length) != lastLine) continue search
+ for (var i = 1, start = line - lines.length + 1; i < lines.length - 1; i++)
+ if (fold(doc.getLine(start + i)) != lines[i]) continue search
+ var top = doc.getLine(line + 1 - lines.length), topString = fold(top)
+ if (topString.slice(topString.length - lines[0].length) != lines[0]) continue search
+ return {from: Pos(line + 1 - lines.length, adjustPos(top, topString, top.length - lines[0].length, fold)),
+ to: Pos(line, adjustPos(orig, string, lastLine.length, fold))}
+ }
+ }
+ }
+
+ function SearchCursor(doc, query, pos, options) {
+ this.atOccurrence = false
+ this.doc = doc
+ pos = pos ? doc.clipPos(pos) : Pos(0, 0)
+ this.pos = {from: pos, to: pos}
+
+ var caseFold
+ if (typeof options == "object") {
+ caseFold = options.caseFold
+ } else { // Backwards compat for when caseFold was the 4th argument
+ caseFold = options
+ options = null
+ }
+
+ if (typeof query == "string") {
+ if (caseFold == null) caseFold = false
+ this.matches = function(reverse, pos) {
+ return (reverse ? searchStringBackward : searchStringForward)(doc, query, pos, caseFold)
+ }
+ } else {
+ query = ensureGlobal(query)
+ if (!options || options.multiline !== false)
+ this.matches = function(reverse, pos) {
+ return (reverse ? searchRegexpBackwardMultiline : searchRegexpForwardMultiline)(doc, query, pos)
+ }
+ else
+ this.matches = function(reverse, pos) {
+ return (reverse ? searchRegexpBackward : searchRegexpForward)(doc, query, pos)
+ }
+ }
+ }
+
+ SearchCursor.prototype = {
+ findNext: function() {return this.find(false)},
+ findPrevious: function() {return this.find(true)},
+
+ find: function(reverse) {
+ var result = this.matches(reverse, this.doc.clipPos(reverse ? this.pos.from : this.pos.to))
+
+ // Implements weird auto-growing behavior on null-matches for
+ // backwards-compatiblity with the vim code (unfortunately)
+ while (result && CodeMirror.cmpPos(result.from, result.to) == 0) {
+ if (reverse) {
+ if (result.from.ch) result.from = Pos(result.from.line, result.from.ch - 1)
+ else if (result.from.line == this.doc.firstLine()) result = null
+ else result = this.matches(reverse, this.doc.clipPos(Pos(result.from.line - 1)))
+ } else {
+ if (result.to.ch < this.doc.getLine(result.to.line).length) result.to = Pos(result.to.line, result.to.ch + 1)
+ else if (result.to.line == this.doc.lastLine()) result = null
+ else result = this.matches(reverse, Pos(result.to.line + 1, 0))
+ }
+ }
+
+ if (result) {
+ this.pos = result
+ this.atOccurrence = true
+ return this.pos.match || true
+ } else {
+ var end = Pos(reverse ? this.doc.firstLine() : this.doc.lastLine() + 1, 0)
+ this.pos = {from: end, to: end}
+ return this.atOccurrence = false
+ }
+ },
+
+ from: function() {if (this.atOccurrence) return this.pos.from},
+ to: function() {if (this.atOccurrence) return this.pos.to},
+
+ replace: function(newText, origin) {
+ if (!this.atOccurrence) return
+ var lines = CodeMirror.splitLines(newText)
+ this.doc.replaceRange(lines, this.pos.from, this.pos.to, origin)
+ this.pos.to = Pos(this.pos.from.line + lines.length - 1,
+ lines[lines.length - 1].length + (lines.length == 1 ? this.pos.from.ch : 0))
+ }
+ }
+
+ CodeMirror.defineExtension("getSearchCursor", function(query, pos, caseFold) {
+ return new SearchCursor(this.doc, query, pos, caseFold)
+ })
+ CodeMirror.defineDocExtension("getSearchCursor", function(query, pos, caseFold) {
+ return new SearchCursor(this, query, pos, caseFold)
+ })
+
+ CodeMirror.defineExtension("selectMatches", function(query, caseFold) {
+ var ranges = []
+ var cur = this.getSearchCursor(query, this.getCursor("from"), caseFold)
+ while (cur.findNext()) {
+ if (CodeMirror.cmpPos(cur.to(), this.getCursor("to")) > 0) break
+ ranges.push({anchor: cur.from(), head: cur.to()})
+ }
+ if (ranges.length)
+ this.setSelections(ranges, 0)
+ })
+});
diff --git a/public/js/vendor/codemirror/codemirror.js b/public/js/vendor/codemirror/codemirror.js
new file mode 100644
index 0000000..2f90d18
--- /dev/null
+++ b/public/js/vendor/codemirror/codemirror.js
@@ -0,0 +1,9622 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// This is CodeMirror (http://codemirror.net), a code editor
+// implemented in JavaScript on top of the browser's DOM.
+//
+// You can find some technical background for some of the code below
+// at http://marijnhaverbeke.nl/blog/#cm-internals .
+
+(function (global, factory) {
+ typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+ typeof define === 'function' && define.amd ? define(factory) :
+ (global.CodeMirror = factory());
+}(this, (function () { 'use strict';
+
+// Kludges for bugs and behavior differences that can't be feature
+// detected are enabled based on userAgent etc sniffing.
+var userAgent = navigator.userAgent
+var platform = navigator.platform
+
+var gecko = /gecko\/\d/i.test(userAgent)
+var ie_upto10 = /MSIE \d/.test(userAgent)
+var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent)
+var edge = /Edge\/(\d+)/.exec(userAgent)
+var ie = ie_upto10 || ie_11up || edge
+var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1])
+var webkit = !edge && /WebKit\//.test(userAgent)
+var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent)
+var chrome = !edge && /Chrome\//.test(userAgent)
+var presto = /Opera\//.test(userAgent)
+var safari = /Apple Computer/.test(navigator.vendor)
+var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent)
+var phantom = /PhantomJS/.test(userAgent)
+
+var ios = !edge && /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent)
+var android = /Android/.test(userAgent)
+// This is woefully incomplete. Suggestions for alternative methods welcome.
+var mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent)
+var mac = ios || /Mac/.test(platform)
+var chromeOS = /\bCrOS\b/.test(userAgent)
+var windows = /win/i.test(platform)
+
+var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/)
+if (presto_version) { presto_version = Number(presto_version[1]) }
+if (presto_version && presto_version >= 15) { presto = false; webkit = true }
+// Some browsers use the wrong event properties to signal cmd/ctrl on OS X
+var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11))
+var captureRightClick = gecko || (ie && ie_version >= 9)
+
+function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") }
+
+var rmClass = function(node, cls) {
+ var current = node.className
+ var match = classTest(cls).exec(current)
+ if (match) {
+ var after = current.slice(match.index + match[0].length)
+ node.className = current.slice(0, match.index) + (after ? match[1] + after : "")
+ }
+}
+
+function removeChildren(e) {
+ for (var count = e.childNodes.length; count > 0; --count)
+ { e.removeChild(e.firstChild) }
+ return e
+}
+
+function removeChildrenAndAdd(parent, e) {
+ return removeChildren(parent).appendChild(e)
+}
+
+function elt(tag, content, className, style) {
+ var e = document.createElement(tag)
+ if (className) { e.className = className }
+ if (style) { e.style.cssText = style }
+ if (typeof content == "string") { e.appendChild(document.createTextNode(content)) }
+ else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]) } }
+ return e
+}
+// wrapper for elt, which removes the elt from the accessibility tree
+function eltP(tag, content, className, style) {
+ var e = elt(tag, content, className, style)
+ e.setAttribute("role", "presentation")
+ return e
+}
+
+var range
+if (document.createRange) { range = function(node, start, end, endNode) {
+ var r = document.createRange()
+ r.setEnd(endNode || node, end)
+ r.setStart(node, start)
+ return r
+} }
+else { range = function(node, start, end) {
+ var r = document.body.createTextRange()
+ try { r.moveToElementText(node.parentNode) }
+ catch(e) { return r }
+ r.collapse(true)
+ r.moveEnd("character", end)
+ r.moveStart("character", start)
+ return r
+} }
+
+function contains(parent, child) {
+ if (child.nodeType == 3) // Android browser always returns false when child is a textnode
+ { child = child.parentNode }
+ if (parent.contains)
+ { return parent.contains(child) }
+ do {
+ if (child.nodeType == 11) { child = child.host }
+ if (child == parent) { return true }
+ } while (child = child.parentNode)
+}
+
+function activeElt() {
+ // IE and Edge may throw an "Unspecified Error" when accessing document.activeElement.
+ // IE < 10 will throw when accessed while the page is loading or in an iframe.
+ // IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable.
+ var activeElement
+ try {
+ activeElement = document.activeElement
+ } catch(e) {
+ activeElement = document.body || null
+ }
+ while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement)
+ { activeElement = activeElement.shadowRoot.activeElement }
+ return activeElement
+}
+
+function addClass(node, cls) {
+ var current = node.className
+ if (!classTest(cls).test(current)) { node.className += (current ? " " : "") + cls }
+}
+function joinClasses(a, b) {
+ var as = a.split(" ")
+ for (var i = 0; i < as.length; i++)
+ { if (as[i] && !classTest(as[i]).test(b)) { b += " " + as[i] } }
+ return b
+}
+
+var selectInput = function(node) { node.select() }
+if (ios) // Mobile Safari apparently has a bug where select() is broken.
+ { selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length } }
+else if (ie) // Suppress mysterious IE10 errors
+ { selectInput = function(node) { try { node.select() } catch(_e) {} } }
+
+function bind(f) {
+ var args = Array.prototype.slice.call(arguments, 1)
+ return function(){return f.apply(null, args)}
+}
+
+function copyObj(obj, target, overwrite) {
+ if (!target) { target = {} }
+ for (var prop in obj)
+ { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
+ { target[prop] = obj[prop] } }
+ return target
+}
+
+// Counts the column offset in a string, taking tabs into account.
+// Used mostly to find indentation.
+function countColumn(string, end, tabSize, startIndex, startValue) {
+ if (end == null) {
+ end = string.search(/[^\s\u00a0]/)
+ if (end == -1) { end = string.length }
+ }
+ for (var i = startIndex || 0, n = startValue || 0;;) {
+ var nextTab = string.indexOf("\t", i)
+ if (nextTab < 0 || nextTab >= end)
+ { return n + (end - i) }
+ n += nextTab - i
+ n += tabSize - (n % tabSize)
+ i = nextTab + 1
+ }
+}
+
+var Delayed = function() {this.id = null};
+Delayed.prototype.set = function (ms, f) {
+ clearTimeout(this.id)
+ this.id = setTimeout(f, ms)
+};
+
+function indexOf(array, elt) {
+ for (var i = 0; i < array.length; ++i)
+ { if (array[i] == elt) { return i } }
+ return -1
+}
+
+// Number of pixels added to scroller and sizer to hide scrollbar
+var scrollerGap = 30
+
+// Returned or thrown by various protocols to signal 'I'm not
+// handling this'.
+var Pass = {toString: function(){return "CodeMirror.Pass"}}
+
+// Reused option objects for setSelection & friends
+var sel_dontScroll = {scroll: false};
+var sel_mouse = {origin: "*mouse"};
+var sel_move = {origin: "+move"};
+// The inverse of countColumn -- find the offset that corresponds to
+// a particular column.
+function findColumn(string, goal, tabSize) {
+ for (var pos = 0, col = 0;;) {
+ var nextTab = string.indexOf("\t", pos)
+ if (nextTab == -1) { nextTab = string.length }
+ var skipped = nextTab - pos
+ if (nextTab == string.length || col + skipped >= goal)
+ { return pos + Math.min(skipped, goal - col) }
+ col += nextTab - pos
+ col += tabSize - (col % tabSize)
+ pos = nextTab + 1
+ if (col >= goal) { return pos }
+ }
+}
+
+var spaceStrs = [""]
+function spaceStr(n) {
+ while (spaceStrs.length <= n)
+ { spaceStrs.push(lst(spaceStrs) + " ") }
+ return spaceStrs[n]
+}
+
+function lst(arr) { return arr[arr.length-1] }
+
+function map(array, f) {
+ var out = []
+ for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i) }
+ return out
+}
+
+function insertSorted(array, value, score) {
+ var pos = 0, priority = score(value)
+ while (pos < array.length && score(array[pos]) <= priority) { pos++ }
+ array.splice(pos, 0, value)
+}
+
+function nothing() {}
+
+function createObj(base, props) {
+ var inst
+ if (Object.create) {
+ inst = Object.create(base)
+ } else {
+ nothing.prototype = base
+ inst = new nothing()
+ }
+ if (props) { copyObj(props, inst) }
+ return inst
+}
+
+var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/
+function isWordCharBasic(ch) {
+ return /\w/.test(ch) || ch > "\x80" &&
+ (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch))
+}
+function isWordChar(ch, helper) {
+ if (!helper) { return isWordCharBasic(ch) }
+ if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) { return true }
+ return helper.test(ch)
+}
+
+function isEmpty(obj) {
+ for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } }
+ return true
+}
+
+// Extending unicode characters. A series of a non-extending char +
+// any number of extending chars is treated as a single unit as far
+// as editing and measuring is concerned. This is not fully correct,
+// since some scripts/fonts/browsers also treat other configurations
+// of code points as a group.
+var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/
+function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) }
+
+// Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range.
+function skipExtendingChars(str, pos, dir) {
+ while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir }
+ return pos
+}
+
+// Returns the value from the range [`from`; `to`] that satisfies
+// `pred` and is closest to `from`. Assumes that at least `to`
+// satisfies `pred`. Supports `from` being greater than `to`.
+function findFirst(pred, from, to) {
+ // At any point we are certain `to` satisfies `pred`, don't know
+ // whether `from` does.
+ var dir = from > to ? -1 : 1
+ for (;;) {
+ if (from == to) { return from }
+ var midF = (from + to) / 2, mid = dir < 0 ? Math.ceil(midF) : Math.floor(midF)
+ if (mid == from) { return pred(mid) ? from : to }
+ if (pred(mid)) { to = mid }
+ else { from = mid + dir }
+ }
+}
+
+// The display handles the DOM integration, both for input reading
+// and content drawing. It holds references to DOM nodes and
+// display-related state.
+
+function Display(place, doc, input) {
+ var d = this
+ this.input = input
+
+ // Covers bottom-right square when both scrollbars are present.
+ d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler")
+ d.scrollbarFiller.setAttribute("cm-not-content", "true")
+ // Covers bottom of gutter when coverGutterNextToScrollbar is on
+ // and h scrollbar is present.
+ d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler")
+ d.gutterFiller.setAttribute("cm-not-content", "true")
+ // Will contain the actual code, positioned to cover the viewport.
+ d.lineDiv = eltP("div", null, "CodeMirror-code")
+ // Elements are added to these to represent selection and cursors.
+ d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1")
+ d.cursorDiv = elt("div", null, "CodeMirror-cursors")
+ // A visibility: hidden element used to find the size of things.
+ d.measure = elt("div", null, "CodeMirror-measure")
+ // When lines outside of the viewport are measured, they are drawn in this.
+ d.lineMeasure = elt("div", null, "CodeMirror-measure")
+ // Wraps everything that needs to exist inside the vertically-padded coordinate system
+ d.lineSpace = eltP("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
+ null, "position: relative; outline: none")
+ var lines = eltP("div", [d.lineSpace], "CodeMirror-lines")
+ // Moved around its parent to cover visible view.
+ d.mover = elt("div", [lines], null, "position: relative")
+ // Set to the height of the document, allowing scrolling.
+ d.sizer = elt("div", [d.mover], "CodeMirror-sizer")
+ d.sizerWidth = null
+ // Behavior of elts with overflow: auto and padding is
+ // inconsistent across browsers. This is used to ensure the
+ // scrollable area is big enough.
+ d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;")
+ // Will contain the gutters, if any.
+ d.gutters = elt("div", null, "CodeMirror-gutters")
+ d.lineGutter = null
+ // Actual scrollable element.
+ d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll")
+ d.scroller.setAttribute("tabIndex", "-1")
+ // The element in which the editor lives.
+ d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror")
+
+ // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
+ if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0 }
+ if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true }
+
+ if (place) {
+ if (place.appendChild) { place.appendChild(d.wrapper) }
+ else { place(d.wrapper) }
+ }
+
+ // Current rendered range (may be bigger than the view window).
+ d.viewFrom = d.viewTo = doc.first
+ d.reportedViewFrom = d.reportedViewTo = doc.first
+ // Information about the rendered lines.
+ d.view = []
+ d.renderedView = null
+ // Holds info about a single rendered line when it was rendered
+ // for measurement, while not in view.
+ d.externalMeasured = null
+ // Empty space (in pixels) above the view
+ d.viewOffset = 0
+ d.lastWrapHeight = d.lastWrapWidth = 0
+ d.updateLineNumbers = null
+
+ d.nativeBarWidth = d.barHeight = d.barWidth = 0
+ d.scrollbarsClipped = false
+
+ // Used to only resize the line number gutter when necessary (when
+ // the amount of lines crosses a boundary that makes its width change)
+ d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null
+ // Set to true when a non-horizontal-scrolling line widget is
+ // added. As an optimization, line widget aligning is skipped when
+ // this is false.
+ d.alignWidgets = false
+
+ d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null
+
+ // Tracks the maximum line length so that the horizontal scrollbar
+ // can be kept static when scrolling.
+ d.maxLine = null
+ d.maxLineLength = 0
+ d.maxLineChanged = false
+
+ // Used for measuring wheel scrolling granularity
+ d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null
+
+ // True when shift is held down.
+ d.shift = false
+
+ // Used to track whether anything happened since the context menu
+ // was opened.
+ d.selForContextMenu = null
+
+ d.activeTouch = null
+
+ input.init(d)
+}
+
+// Find the line object corresponding to the given line number.
+function getLine(doc, n) {
+ n -= doc.first
+ if (n < 0 || n >= doc.size) { throw new Error("There is no line " + (n + doc.first) + " in the document.") }
+ var chunk = doc
+ while (!chunk.lines) {
+ for (var i = 0;; ++i) {
+ var child = chunk.children[i], sz = child.chunkSize()
+ if (n < sz) { chunk = child; break }
+ n -= sz
+ }
+ }
+ return chunk.lines[n]
+}
+
+// Get the part of a document between two positions, as an array of
+// strings.
+function getBetween(doc, start, end) {
+ var out = [], n = start.line
+ doc.iter(start.line, end.line + 1, function (line) {
+ var text = line.text
+ if (n == end.line) { text = text.slice(0, end.ch) }
+ if (n == start.line) { text = text.slice(start.ch) }
+ out.push(text)
+ ++n
+ })
+ return out
+}
+// Get the lines between from and to, as array of strings.
+function getLines(doc, from, to) {
+ var out = []
+ doc.iter(from, to, function (line) { out.push(line.text) }) // iter aborts when callback returns truthy value
+ return out
+}
+
+// Update the height of a line, propagating the height change
+// upwards to parent nodes.
+function updateLineHeight(line, height) {
+ var diff = height - line.height
+ if (diff) { for (var n = line; n; n = n.parent) { n.height += diff } }
+}
+
+// Given a line object, find its line number by walking up through
+// its parent links.
+function lineNo(line) {
+ if (line.parent == null) { return null }
+ var cur = line.parent, no = indexOf(cur.lines, line)
+ for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
+ for (var i = 0;; ++i) {
+ if (chunk.children[i] == cur) { break }
+ no += chunk.children[i].chunkSize()
+ }
+ }
+ return no + cur.first
+}
+
+// Find the line at the given vertical position, using the height
+// information in the document tree.
+function lineAtHeight(chunk, h) {
+ var n = chunk.first
+ outer: do {
+ for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) {
+ var child = chunk.children[i$1], ch = child.height
+ if (h < ch) { chunk = child; continue outer }
+ h -= ch
+ n += child.chunkSize()
+ }
+ return n
+ } while (!chunk.lines)
+ var i = 0
+ for (; i < chunk.lines.length; ++i) {
+ var line = chunk.lines[i], lh = line.height
+ if (h < lh) { break }
+ h -= lh
+ }
+ return n + i
+}
+
+function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size}
+
+function lineNumberFor(options, i) {
+ return String(options.lineNumberFormatter(i + options.firstLineNumber))
+}
+
+// A Pos instance represents a position within the text.
+function Pos(line, ch, sticky) {
+ if ( sticky === void 0 ) sticky = null;
+
+ if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) }
+ this.line = line
+ this.ch = ch
+ this.sticky = sticky
+}
+
+// Compare two positions, return 0 if they are the same, a negative
+// number when a is less, and a positive number otherwise.
+function cmp(a, b) { return a.line - b.line || a.ch - b.ch }
+
+function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 }
+
+function copyPos(x) {return Pos(x.line, x.ch)}
+function maxPos(a, b) { return cmp(a, b) < 0 ? b : a }
+function minPos(a, b) { return cmp(a, b) < 0 ? a : b }
+
+// Most of the external API clips given positions to make sure they
+// actually exist within the document.
+function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))}
+function clipPos(doc, pos) {
+ if (pos.line < doc.first) { return Pos(doc.first, 0) }
+ var last = doc.first + doc.size - 1
+ if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) }
+ return clipToLen(pos, getLine(doc, pos.line).text.length)
+}
+function clipToLen(pos, linelen) {
+ var ch = pos.ch
+ if (ch == null || ch > linelen) { return Pos(pos.line, linelen) }
+ else if (ch < 0) { return Pos(pos.line, 0) }
+ else { return pos }
+}
+function clipPosArray(doc, array) {
+ var out = []
+ for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]) }
+ return out
+}
+
+// Optimize some code when these features are not used.
+var sawReadOnlySpans = false;
+var sawCollapsedSpans = false;
+function seeReadOnlySpans() {
+ sawReadOnlySpans = true
+}
+
+function seeCollapsedSpans() {
+ sawCollapsedSpans = true
+}
+
+// TEXTMARKER SPANS
+
+function MarkedSpan(marker, from, to) {
+ this.marker = marker
+ this.from = from; this.to = to
+}
+
+// Search an array of spans for a span matching the given marker.
+function getMarkedSpanFor(spans, marker) {
+ if (spans) { for (var i = 0; i < spans.length; ++i) {
+ var span = spans[i]
+ if (span.marker == marker) { return span }
+ } }
+}
+// Remove a span from an array, returning undefined if no spans are
+// left (we don't store arrays for lines without spans).
+function removeMarkedSpan(spans, span) {
+ var r
+ for (var i = 0; i < spans.length; ++i)
+ { if (spans[i] != span) { (r || (r = [])).push(spans[i]) } }
+ return r
+}
+// Add a span to a line.
+function addMarkedSpan(line, span) {
+ line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span]
+ span.marker.attachLine(line)
+}
+
+// Used for the algorithm that adjusts markers for a change in the
+// document. These functions cut an array of spans at a given
+// character position, returning an array of remaining chunks (or
+// undefined if nothing remains).
+function markedSpansBefore(old, startCh, isInsert) {
+ var nw
+ if (old) { for (var i = 0; i < old.length; ++i) {
+ var span = old[i], marker = span.marker
+ var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh)
+ if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
+ var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh)
+ ;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to))
+ }
+ } }
+ return nw
+}
+function markedSpansAfter(old, endCh, isInsert) {
+ var nw
+ if (old) { for (var i = 0; i < old.length; ++i) {
+ var span = old[i], marker = span.marker
+ var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh)
+ if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
+ var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh)
+ ;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
+ span.to == null ? null : span.to - endCh))
+ }
+ } }
+ return nw
+}
+
+// Given a change object, compute the new set of marker spans that
+// cover the line in which the change took place. Removes spans
+// entirely within the change, reconnects spans belonging to the
+// same marker that appear on both sides of the change, and cuts off
+// spans partially within the change. Returns an array of span
+// arrays with one element for each line in (after) the change.
+function stretchSpansOverChange(doc, change) {
+ if (change.full) { return null }
+ var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans
+ var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans
+ if (!oldFirst && !oldLast) { return null }
+
+ var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0
+ // Get the spans that 'stick out' on both sides
+ var first = markedSpansBefore(oldFirst, startCh, isInsert)
+ var last = markedSpansAfter(oldLast, endCh, isInsert)
+
+ // Next, merge those two ends
+ var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0)
+ if (first) {
+ // Fix up .to properties of first
+ for (var i = 0; i < first.length; ++i) {
+ var span = first[i]
+ if (span.to == null) {
+ var found = getMarkedSpanFor(last, span.marker)
+ if (!found) { span.to = startCh }
+ else if (sameLine) { span.to = found.to == null ? null : found.to + offset }
+ }
+ }
+ }
+ if (last) {
+ // Fix up .from in last (or move them into first in case of sameLine)
+ for (var i$1 = 0; i$1 < last.length; ++i$1) {
+ var span$1 = last[i$1]
+ if (span$1.to != null) { span$1.to += offset }
+ if (span$1.from == null) {
+ var found$1 = getMarkedSpanFor(first, span$1.marker)
+ if (!found$1) {
+ span$1.from = offset
+ if (sameLine) { (first || (first = [])).push(span$1) }
+ }
+ } else {
+ span$1.from += offset
+ if (sameLine) { (first || (first = [])).push(span$1) }
+ }
+ }
+ }
+ // Make sure we didn't create any zero-length spans
+ if (first) { first = clearEmptySpans(first) }
+ if (last && last != first) { last = clearEmptySpans(last) }
+
+ var newMarkers = [first]
+ if (!sameLine) {
+ // Fill gap with whole-line-spans
+ var gap = change.text.length - 2, gapMarkers
+ if (gap > 0 && first)
+ { for (var i$2 = 0; i$2 < first.length; ++i$2)
+ { if (first[i$2].to == null)
+ { (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)) } } }
+ for (var i$3 = 0; i$3 < gap; ++i$3)
+ { newMarkers.push(gapMarkers) }
+ newMarkers.push(last)
+ }
+ return newMarkers
+}
+
+// Remove spans that are empty and don't have a clearWhenEmpty
+// option of false.
+function clearEmptySpans(spans) {
+ for (var i = 0; i < spans.length; ++i) {
+ var span = spans[i]
+ if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
+ { spans.splice(i--, 1) }
+ }
+ if (!spans.length) { return null }
+ return spans
+}
+
+// Used to 'clip' out readOnly ranges when making a change.
+function removeReadOnlyRanges(doc, from, to) {
+ var markers = null
+ doc.iter(from.line, to.line + 1, function (line) {
+ if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
+ var mark = line.markedSpans[i].marker
+ if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
+ { (markers || (markers = [])).push(mark) }
+ } }
+ })
+ if (!markers) { return null }
+ var parts = [{from: from, to: to}]
+ for (var i = 0; i < markers.length; ++i) {
+ var mk = markers[i], m = mk.find(0)
+ for (var j = 0; j < parts.length; ++j) {
+ var p = parts[j]
+ if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue }
+ var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to)
+ if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
+ { newParts.push({from: p.from, to: m.from}) }
+ if (dto > 0 || !mk.inclusiveRight && !dto)
+ { newParts.push({from: m.to, to: p.to}) }
+ parts.splice.apply(parts, newParts)
+ j += newParts.length - 3
+ }
+ }
+ return parts
+}
+
+// Connect or disconnect spans from a line.
+function detachMarkedSpans(line) {
+ var spans = line.markedSpans
+ if (!spans) { return }
+ for (var i = 0; i < spans.length; ++i)
+ { spans[i].marker.detachLine(line) }
+ line.markedSpans = null
+}
+function attachMarkedSpans(line, spans) {
+ if (!spans) { return }
+ for (var i = 0; i < spans.length; ++i)
+ { spans[i].marker.attachLine(line) }
+ line.markedSpans = spans
+}
+
+// Helpers used when computing which overlapping collapsed span
+// counts as the larger one.
+function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 }
+function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 }
+
+// Returns a number indicating which of two overlapping collapsed
+// spans is larger (and thus includes the other). Falls back to
+// comparing ids when the spans cover exactly the same range.
+function compareCollapsedMarkers(a, b) {
+ var lenDiff = a.lines.length - b.lines.length
+ if (lenDiff != 0) { return lenDiff }
+ var aPos = a.find(), bPos = b.find()
+ var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b)
+ if (fromCmp) { return -fromCmp }
+ var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b)
+ if (toCmp) { return toCmp }
+ return b.id - a.id
+}
+
+// Find out whether a line ends or starts in a collapsed span. If
+// so, return the marker for that span.
+function collapsedSpanAtSide(line, start) {
+ var sps = sawCollapsedSpans && line.markedSpans, found
+ if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
+ sp = sps[i]
+ if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
+ (!found || compareCollapsedMarkers(found, sp.marker) < 0))
+ { found = sp.marker }
+ } }
+ return found
+}
+function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) }
+function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) }
+
+// Test whether there exists a collapsed span that partially
+// overlaps (covers the start or end, but not both) of a new span.
+// Such overlap is not allowed.
+function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
+ var line = getLine(doc, lineNo)
+ var sps = sawCollapsedSpans && line.markedSpans
+ if (sps) { for (var i = 0; i < sps.length; ++i) {
+ var sp = sps[i]
+ if (!sp.marker.collapsed) { continue }
+ var found = sp.marker.find(0)
+ var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker)
+ var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker)
+ if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue }
+ if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||
+ fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))
+ { return true }
+ } }
+}
+
+// A visual line is a line as drawn on the screen. Folding, for
+// example, can cause multiple logical lines to appear on the same
+// visual line. This finds the start of the visual line that the
+// given line is part of (usually that is the line itself).
+function visualLine(line) {
+ var merged
+ while (merged = collapsedSpanAtStart(line))
+ { line = merged.find(-1, true).line }
+ return line
+}
+
+function visualLineEnd(line) {
+ var merged
+ while (merged = collapsedSpanAtEnd(line))
+ { line = merged.find(1, true).line }
+ return line
+}
+
+// Returns an array of logical lines that continue the visual line
+// started by the argument, or undefined if there are no such lines.
+function visualLineContinued(line) {
+ var merged, lines
+ while (merged = collapsedSpanAtEnd(line)) {
+ line = merged.find(1, true).line
+ ;(lines || (lines = [])).push(line)
+ }
+ return lines
+}
+
+// Get the line number of the start of the visual line that the
+// given line number is part of.
+function visualLineNo(doc, lineN) {
+ var line = getLine(doc, lineN), vis = visualLine(line)
+ if (line == vis) { return lineN }
+ return lineNo(vis)
+}
+
+// Get the line number of the start of the next visual line after
+// the given line.
+function visualLineEndNo(doc, lineN) {
+ if (lineN > doc.lastLine()) { return lineN }
+ var line = getLine(doc, lineN), merged
+ if (!lineIsHidden(doc, line)) { return lineN }
+ while (merged = collapsedSpanAtEnd(line))
+ { line = merged.find(1, true).line }
+ return lineNo(line) + 1
+}
+
+// Compute whether a line is hidden. Lines count as hidden when they
+// are part of a visual line that starts with another line, or when
+// they are entirely covered by collapsed, non-widget span.
+function lineIsHidden(doc, line) {
+ var sps = sawCollapsedSpans && line.markedSpans
+ if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
+ sp = sps[i]
+ if (!sp.marker.collapsed) { continue }
+ if (sp.from == null) { return true }
+ if (sp.marker.widgetNode) { continue }
+ if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
+ { return true }
+ } }
+}
+function lineIsHiddenInner(doc, line, span) {
+ if (span.to == null) {
+ var end = span.marker.find(1, true)
+ return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker))
+ }
+ if (span.marker.inclusiveRight && span.to == line.text.length)
+ { return true }
+ for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) {
+ sp = line.markedSpans[i]
+ if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
+ (sp.to == null || sp.to != span.from) &&
+ (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
+ lineIsHiddenInner(doc, line, sp)) { return true }
+ }
+}
+
+// Find the height above the given line.
+function heightAtLine(lineObj) {
+ lineObj = visualLine(lineObj)
+
+ var h = 0, chunk = lineObj.parent
+ for (var i = 0; i < chunk.lines.length; ++i) {
+ var line = chunk.lines[i]
+ if (line == lineObj) { break }
+ else { h += line.height }
+ }
+ for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
+ for (var i$1 = 0; i$1 < p.children.length; ++i$1) {
+ var cur = p.children[i$1]
+ if (cur == chunk) { break }
+ else { h += cur.height }
+ }
+ }
+ return h
+}
+
+// Compute the character length of a line, taking into account
+// collapsed ranges (see markText) that might hide parts, and join
+// other lines onto it.
+function lineLength(line) {
+ if (line.height == 0) { return 0 }
+ var len = line.text.length, merged, cur = line
+ while (merged = collapsedSpanAtStart(cur)) {
+ var found = merged.find(0, true)
+ cur = found.from.line
+ len += found.from.ch - found.to.ch
+ }
+ cur = line
+ while (merged = collapsedSpanAtEnd(cur)) {
+ var found$1 = merged.find(0, true)
+ len -= cur.text.length - found$1.from.ch
+ cur = found$1.to.line
+ len += cur.text.length - found$1.to.ch
+ }
+ return len
+}
+
+// Find the longest line in the document.
+function findMaxLine(cm) {
+ var d = cm.display, doc = cm.doc
+ d.maxLine = getLine(doc, doc.first)
+ d.maxLineLength = lineLength(d.maxLine)
+ d.maxLineChanged = true
+ doc.iter(function (line) {
+ var len = lineLength(line)
+ if (len > d.maxLineLength) {
+ d.maxLineLength = len
+ d.maxLine = line
+ }
+ })
+}
+
+// BIDI HELPERS
+
+function iterateBidiSections(order, from, to, f) {
+ if (!order) { return f(from, to, "ltr", 0) }
+ var found = false
+ for (var i = 0; i < order.length; ++i) {
+ var part = order[i]
+ if (part.from < to && part.to > from || from == to && part.to == from) {
+ f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr", i)
+ found = true
+ }
+ }
+ if (!found) { f(from, to, "ltr") }
+}
+
+var bidiOther = null
+function getBidiPartAt(order, ch, sticky) {
+ var found
+ bidiOther = null
+ for (var i = 0; i < order.length; ++i) {
+ var cur = order[i]
+ if (cur.from < ch && cur.to > ch) { return i }
+ if (cur.to == ch) {
+ if (cur.from != cur.to && sticky == "before") { found = i }
+ else { bidiOther = i }
+ }
+ if (cur.from == ch) {
+ if (cur.from != cur.to && sticky != "before") { found = i }
+ else { bidiOther = i }
+ }
+ }
+ return found != null ? found : bidiOther
+}
+
+// Bidirectional ordering algorithm
+// See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
+// that this (partially) implements.
+
+// One-char codes used for character types:
+// L (L): Left-to-Right
+// R (R): Right-to-Left
+// r (AL): Right-to-Left Arabic
+// 1 (EN): European Number
+// + (ES): European Number Separator
+// % (ET): European Number Terminator
+// n (AN): Arabic Number
+// , (CS): Common Number Separator
+// m (NSM): Non-Spacing Mark
+// b (BN): Boundary Neutral
+// s (B): Paragraph Separator
+// t (S): Segment Separator
+// w (WS): Whitespace
+// N (ON): Other Neutrals
+
+// Returns null if characters are ordered as they appear
+// (left-to-right), or an array of sections ({from, to, level}
+// objects) in the order in which they occur visually.
+var bidiOrdering = (function() {
+ // Character types for codepoints 0 to 0xff
+ var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN"
+ // Character types for codepoints 0x600 to 0x6f9
+ var arabicTypes = "nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111"
+ function charType(code) {
+ if (code <= 0xf7) { return lowTypes.charAt(code) }
+ else if (0x590 <= code && code <= 0x5f4) { return "R" }
+ else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) }
+ else if (0x6ee <= code && code <= 0x8ac) { return "r" }
+ else if (0x2000 <= code && code <= 0x200b) { return "w" }
+ else if (code == 0x200c) { return "b" }
+ else { return "L" }
+ }
+
+ var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/
+ var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/
+
+ function BidiSpan(level, from, to) {
+ this.level = level
+ this.from = from; this.to = to
+ }
+
+ return function(str, direction) {
+ var outerType = direction == "ltr" ? "L" : "R"
+
+ if (str.length == 0 || direction == "ltr" && !bidiRE.test(str)) { return false }
+ var len = str.length, types = []
+ for (var i = 0; i < len; ++i)
+ { types.push(charType(str.charCodeAt(i))) }
+
+ // W1. Examine each non-spacing mark (NSM) in the level run, and
+ // change the type of the NSM to the type of the previous
+ // character. If the NSM is at the start of the level run, it will
+ // get the type of sor.
+ for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) {
+ var type = types[i$1]
+ if (type == "m") { types[i$1] = prev }
+ else { prev = type }
+ }
+
+ // W2. Search backwards from each instance of a European number
+ // until the first strong type (R, L, AL, or sor) is found. If an
+ // AL is found, change the type of the European number to Arabic
+ // number.
+ // W3. Change all ALs to R.
+ for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) {
+ var type$1 = types[i$2]
+ if (type$1 == "1" && cur == "r") { types[i$2] = "n" }
+ else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == "r") { types[i$2] = "R" } }
+ }
+
+ // W4. A single European separator between two European numbers
+ // changes to a European number. A single common separator between
+ // two numbers of the same type changes to that type.
+ for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) {
+ var type$2 = types[i$3]
+ if (type$2 == "+" && prev$1 == "1" && types[i$3+1] == "1") { types[i$3] = "1" }
+ else if (type$2 == "," && prev$1 == types[i$3+1] &&
+ (prev$1 == "1" || prev$1 == "n")) { types[i$3] = prev$1 }
+ prev$1 = type$2
+ }
+
+ // W5. A sequence of European terminators adjacent to European
+ // numbers changes to all European numbers.
+ // W6. Otherwise, separators and terminators change to Other
+ // Neutral.
+ for (var i$4 = 0; i$4 < len; ++i$4) {
+ var type$3 = types[i$4]
+ if (type$3 == ",") { types[i$4] = "N" }
+ else if (type$3 == "%") {
+ var end = (void 0)
+ for (end = i$4 + 1; end < len && types[end] == "%"; ++end) {}
+ var replace = (i$4 && types[i$4-1] == "!") || (end < len && types[end] == "1") ? "1" : "N"
+ for (var j = i$4; j < end; ++j) { types[j] = replace }
+ i$4 = end - 1
+ }
+ }
+
+ // W7. Search backwards from each instance of a European number
+ // until the first strong type (R, L, or sor) is found. If an L is
+ // found, then change the type of the European number to L.
+ for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) {
+ var type$4 = types[i$5]
+ if (cur$1 == "L" && type$4 == "1") { types[i$5] = "L" }
+ else if (isStrong.test(type$4)) { cur$1 = type$4 }
+ }
+
+ // N1. A sequence of neutrals takes the direction of the
+ // surrounding strong text if the text on both sides has the same
+ // direction. European and Arabic numbers act as if they were R in
+ // terms of their influence on neutrals. Start-of-level-run (sor)
+ // and end-of-level-run (eor) are used at level run boundaries.
+ // N2. Any remaining neutrals take the embedding direction.
+ for (var i$6 = 0; i$6 < len; ++i$6) {
+ if (isNeutral.test(types[i$6])) {
+ var end$1 = (void 0)
+ for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {}
+ var before = (i$6 ? types[i$6-1] : outerType) == "L"
+ var after = (end$1 < len ? types[end$1] : outerType) == "L"
+ var replace$1 = before == after ? (before ? "L" : "R") : outerType
+ for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1 }
+ i$6 = end$1 - 1
+ }
+ }
+
+ // Here we depart from the documented algorithm, in order to avoid
+ // building up an actual levels array. Since there are only three
+ // levels (0, 1, 2) in an implementation that doesn't take
+ // explicit embedding into account, we can build up the order on
+ // the fly, without following the level-based algorithm.
+ var order = [], m
+ for (var i$7 = 0; i$7 < len;) {
+ if (countsAsLeft.test(types[i$7])) {
+ var start = i$7
+ for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {}
+ order.push(new BidiSpan(0, start, i$7))
+ } else {
+ var pos = i$7, at = order.length
+ for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {}
+ for (var j$2 = pos; j$2 < i$7;) {
+ if (countsAsNum.test(types[j$2])) {
+ if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)) }
+ var nstart = j$2
+ for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {}
+ order.splice(at, 0, new BidiSpan(2, nstart, j$2))
+ pos = j$2
+ } else { ++j$2 }
+ }
+ if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)) }
+ }
+ }
+ if (order[0].level == 1 && (m = str.match(/^\s+/))) {
+ order[0].from = m[0].length
+ order.unshift(new BidiSpan(0, 0, m[0].length))
+ }
+ if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
+ lst(order).to -= m[0].length
+ order.push(new BidiSpan(0, len - m[0].length, len))
+ }
+
+ return direction == "rtl" ? order.reverse() : order
+ }
+})()
+
+// Get the bidi ordering for the given line (and cache it). Returns
+// false for lines that are fully left-to-right, and an array of
+// BidiSpan objects otherwise.
+function getOrder(line, direction) {
+ var order = line.order
+ if (order == null) { order = line.order = bidiOrdering(line.text, direction) }
+ return order
+}
+
+// EVENT HANDLING
+
+// Lightweight event framework. on/off also work on DOM nodes,
+// registering native DOM handlers.
+
+var noHandlers = []
+
+var on = function(emitter, type, f) {
+ if (emitter.addEventListener) {
+ emitter.addEventListener(type, f, false)
+ } else if (emitter.attachEvent) {
+ emitter.attachEvent("on" + type, f)
+ } else {
+ var map = emitter._handlers || (emitter._handlers = {})
+ map[type] = (map[type] || noHandlers).concat(f)
+ }
+}
+
+function getHandlers(emitter, type) {
+ return emitter._handlers && emitter._handlers[type] || noHandlers
+}
+
+function off(emitter, type, f) {
+ if (emitter.removeEventListener) {
+ emitter.removeEventListener(type, f, false)
+ } else if (emitter.detachEvent) {
+ emitter.detachEvent("on" + type, f)
+ } else {
+ var map = emitter._handlers, arr = map && map[type]
+ if (arr) {
+ var index = indexOf(arr, f)
+ if (index > -1)
+ { map[type] = arr.slice(0, index).concat(arr.slice(index + 1)) }
+ }
+ }
+}
+
+function signal(emitter, type /*, values...*/) {
+ var handlers = getHandlers(emitter, type)
+ if (!handlers.length) { return }
+ var args = Array.prototype.slice.call(arguments, 2)
+ for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args) }
+}
+
+// The DOM events that CodeMirror handles can be overridden by
+// registering a (non-DOM) handler on the editor for the event name,
+// and preventDefault-ing the event in that handler.
+function signalDOMEvent(cm, e, override) {
+ if (typeof e == "string")
+ { e = {type: e, preventDefault: function() { this.defaultPrevented = true }} }
+ signal(cm, override || e.type, cm, e)
+ return e_defaultPrevented(e) || e.codemirrorIgnore
+}
+
+function signalCursorActivity(cm) {
+ var arr = cm._handlers && cm._handlers.cursorActivity
+ if (!arr) { return }
+ var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = [])
+ for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1)
+ { set.push(arr[i]) } }
+}
+
+function hasHandler(emitter, type) {
+ return getHandlers(emitter, type).length > 0
+}
+
+// Add on and off methods to a constructor's prototype, to make
+// registering events on such objects more convenient.
+function eventMixin(ctor) {
+ ctor.prototype.on = function(type, f) {on(this, type, f)}
+ ctor.prototype.off = function(type, f) {off(this, type, f)}
+}
+
+// Due to the fact that we still support jurassic IE versions, some
+// compatibility wrappers are needed.
+
+function e_preventDefault(e) {
+ if (e.preventDefault) { e.preventDefault() }
+ else { e.returnValue = false }
+}
+function e_stopPropagation(e) {
+ if (e.stopPropagation) { e.stopPropagation() }
+ else { e.cancelBubble = true }
+}
+function e_defaultPrevented(e) {
+ return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false
+}
+function e_stop(e) {e_preventDefault(e); e_stopPropagation(e)}
+
+function e_target(e) {return e.target || e.srcElement}
+function e_button(e) {
+ var b = e.which
+ if (b == null) {
+ if (e.button & 1) { b = 1 }
+ else if (e.button & 2) { b = 3 }
+ else if (e.button & 4) { b = 2 }
+ }
+ if (mac && e.ctrlKey && b == 1) { b = 3 }
+ return b
+}
+
+// Detect drag-and-drop
+var dragAndDrop = function() {
+ // There is *some* kind of drag-and-drop support in IE6-8, but I
+ // couldn't get it to work yet.
+ if (ie && ie_version < 9) { return false }
+ var div = elt('div')
+ return "draggable" in div || "dragDrop" in div
+}()
+
+var zwspSupported
+function zeroWidthElement(measure) {
+ if (zwspSupported == null) {
+ var test = elt("span", "\u200b")
+ removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]))
+ if (measure.firstChild.offsetHeight != 0)
+ { zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8) }
+ }
+ var node = zwspSupported ? elt("span", "\u200b") :
+ elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px")
+ node.setAttribute("cm-text", "")
+ return node
+}
+
+// Feature-detect IE's crummy client rect reporting for bidi text
+var badBidiRects
+function hasBadBidiRects(measure) {
+ if (badBidiRects != null) { return badBidiRects }
+ var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"))
+ var r0 = range(txt, 0, 1).getBoundingClientRect()
+ var r1 = range(txt, 1, 2).getBoundingClientRect()
+ removeChildren(measure)
+ if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780)
+ return badBidiRects = (r1.right - r0.right < 3)
+}
+
+// See if "".split is the broken IE version, if so, provide an
+// alternative way to split lines.
+var splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? function (string) {
+ var pos = 0, result = [], l = string.length
+ while (pos <= l) {
+ var nl = string.indexOf("\n", pos)
+ if (nl == -1) { nl = string.length }
+ var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl)
+ var rt = line.indexOf("\r")
+ if (rt != -1) {
+ result.push(line.slice(0, rt))
+ pos += rt + 1
+ } else {
+ result.push(line)
+ pos = nl + 1
+ }
+ }
+ return result
+} : function (string) { return string.split(/\r\n?|\n/); }
+
+var hasSelection = window.getSelection ? function (te) {
+ try { return te.selectionStart != te.selectionEnd }
+ catch(e) { return false }
+} : function (te) {
+ var range
+ try {range = te.ownerDocument.selection.createRange()}
+ catch(e) {}
+ if (!range || range.parentElement() != te) { return false }
+ return range.compareEndPoints("StartToEnd", range) != 0
+}
+
+var hasCopyEvent = (function () {
+ var e = elt("div")
+ if ("oncopy" in e) { return true }
+ e.setAttribute("oncopy", "return;")
+ return typeof e.oncopy == "function"
+})()
+
+var badZoomedRects = null
+function hasBadZoomedRects(measure) {
+ if (badZoomedRects != null) { return badZoomedRects }
+ var node = removeChildrenAndAdd(measure, elt("span", "x"))
+ var normal = node.getBoundingClientRect()
+ var fromRange = range(node, 0, 1).getBoundingClientRect()
+ return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1
+}
+
+var modes = {};
+var mimeModes = {};
+// Extra arguments are stored as the mode's dependencies, which is
+// used by (legacy) mechanisms like loadmode.js to automatically
+// load a mode. (Preferred mechanism is the require/define calls.)
+function defineMode(name, mode) {
+ if (arguments.length > 2)
+ { mode.dependencies = Array.prototype.slice.call(arguments, 2) }
+ modes[name] = mode
+}
+
+function defineMIME(mime, spec) {
+ mimeModes[mime] = spec
+}
+
+// Given a MIME type, a {name, ...options} config object, or a name
+// string, return a mode config object.
+function resolveMode(spec) {
+ if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
+ spec = mimeModes[spec]
+ } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
+ var found = mimeModes[spec.name]
+ if (typeof found == "string") { found = {name: found} }
+ spec = createObj(found, spec)
+ spec.name = found.name
+ } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
+ return resolveMode("application/xml")
+ } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) {
+ return resolveMode("application/json")
+ }
+ if (typeof spec == "string") { return {name: spec} }
+ else { return spec || {name: "null"} }
+}
+
+// Given a mode spec (anything that resolveMode accepts), find and
+// initialize an actual mode object.
+function getMode(options, spec) {
+ spec = resolveMode(spec)
+ var mfactory = modes[spec.name]
+ if (!mfactory) { return getMode(options, "text/plain") }
+ var modeObj = mfactory(options, spec)
+ if (modeExtensions.hasOwnProperty(spec.name)) {
+ var exts = modeExtensions[spec.name]
+ for (var prop in exts) {
+ if (!exts.hasOwnProperty(prop)) { continue }
+ if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop] }
+ modeObj[prop] = exts[prop]
+ }
+ }
+ modeObj.name = spec.name
+ if (spec.helperType) { modeObj.helperType = spec.helperType }
+ if (spec.modeProps) { for (var prop$1 in spec.modeProps)
+ { modeObj[prop$1] = spec.modeProps[prop$1] } }
+
+ return modeObj
+}
+
+// This can be used to attach properties to mode objects from
+// outside the actual mode definition.
+var modeExtensions = {}
+function extendMode(mode, properties) {
+ var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {})
+ copyObj(properties, exts)
+}
+
+function copyState(mode, state) {
+ if (state === true) { return state }
+ if (mode.copyState) { return mode.copyState(state) }
+ var nstate = {}
+ for (var n in state) {
+ var val = state[n]
+ if (val instanceof Array) { val = val.concat([]) }
+ nstate[n] = val
+ }
+ return nstate
+}
+
+// Given a mode and a state (for that mode), find the inner mode and
+// state at the position that the state refers to.
+function innerMode(mode, state) {
+ var info
+ while (mode.innerMode) {
+ info = mode.innerMode(state)
+ if (!info || info.mode == mode) { break }
+ state = info.state
+ mode = info.mode
+ }
+ return info || {mode: mode, state: state}
+}
+
+function startState(mode, a1, a2) {
+ return mode.startState ? mode.startState(a1, a2) : true
+}
+
+// STRING STREAM
+
+// Fed to the mode parsers, provides helper functions to make
+// parsers more succinct.
+
+var StringStream = function(string, tabSize, lineOracle) {
+ this.pos = this.start = 0
+ this.string = string
+ this.tabSize = tabSize || 8
+ this.lastColumnPos = this.lastColumnValue = 0
+ this.lineStart = 0
+ this.lineOracle = lineOracle
+};
+
+StringStream.prototype.eol = function () {return this.pos >= this.string.length};
+StringStream.prototype.sol = function () {return this.pos == this.lineStart};
+StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined};
+StringStream.prototype.next = function () {
+ if (this.pos < this.string.length)
+ { return this.string.charAt(this.pos++) }
+};
+StringStream.prototype.eat = function (match) {
+ var ch = this.string.charAt(this.pos)
+ var ok
+ if (typeof match == "string") { ok = ch == match }
+ else { ok = ch && (match.test ? match.test(ch) : match(ch)) }
+ if (ok) {++this.pos; return ch}
+};
+StringStream.prototype.eatWhile = function (match) {
+ var start = this.pos
+ while (this.eat(match)){}
+ return this.pos > start
+};
+StringStream.prototype.eatSpace = function () {
+ var this$1 = this;
+
+ var start = this.pos
+ while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this$1.pos }
+ return this.pos > start
+};
+StringStream.prototype.skipToEnd = function () {this.pos = this.string.length};
+StringStream.prototype.skipTo = function (ch) {
+ var found = this.string.indexOf(ch, this.pos)
+ if (found > -1) {this.pos = found; return true}
+};
+StringStream.prototype.backUp = function (n) {this.pos -= n};
+StringStream.prototype.column = function () {
+ if (this.lastColumnPos < this.start) {
+ this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue)
+ this.lastColumnPos = this.start
+ }
+ return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
+};
+StringStream.prototype.indentation = function () {
+ return countColumn(this.string, null, this.tabSize) -
+ (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
+};
+StringStream.prototype.match = function (pattern, consume, caseInsensitive) {
+ if (typeof pattern == "string") {
+ var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; }
+ var substr = this.string.substr(this.pos, pattern.length)
+ if (cased(substr) == cased(pattern)) {
+ if (consume !== false) { this.pos += pattern.length }
+ return true
+ }
+ } else {
+ var match = this.string.slice(this.pos).match(pattern)
+ if (match && match.index > 0) { return null }
+ if (match && consume !== false) { this.pos += match[0].length }
+ return match
+ }
+};
+StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)};
+StringStream.prototype.hideFirstChars = function (n, inner) {
+ this.lineStart += n
+ try { return inner() }
+ finally { this.lineStart -= n }
+};
+StringStream.prototype.lookAhead = function (n) {
+ var oracle = this.lineOracle
+ return oracle && oracle.lookAhead(n)
+};
+
+var SavedContext = function(state, lookAhead) {
+ this.state = state
+ this.lookAhead = lookAhead
+};
+
+var Context = function(doc, state, line, lookAhead) {
+ this.state = state
+ this.doc = doc
+ this.line = line
+ this.maxLookAhead = lookAhead || 0
+};
+
+Context.prototype.lookAhead = function (n) {
+ var line = this.doc.getLine(this.line + n)
+ if (line != null && n > this.maxLookAhead) { this.maxLookAhead = n }
+ return line
+};
+
+Context.prototype.nextLine = function () {
+ this.line++
+ if (this.maxLookAhead > 0) { this.maxLookAhead-- }
+};
+
+Context.fromSaved = function (doc, saved, line) {
+ if (saved instanceof SavedContext)
+ { return new Context(doc, copyState(doc.mode, saved.state), line, saved.lookAhead) }
+ else
+ { return new Context(doc, copyState(doc.mode, saved), line) }
+};
+
+Context.prototype.save = function (copy) {
+ var state = copy !== false ? copyState(this.doc.mode, this.state) : this.state
+ return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state
+};
+
+
+// Compute a style array (an array starting with a mode generation
+// -- for invalidation -- followed by pairs of end positions and
+// style strings), which is used to highlight the tokens on the
+// line.
+function highlightLine(cm, line, context, forceToEnd) {
+ // A styles array always starts with a number identifying the
+ // mode/overlays that it is based on (for easy invalidation).
+ var st = [cm.state.modeGen], lineClasses = {}
+ // Compute the base array of styles
+ runMode(cm, line.text, cm.doc.mode, context, function (end, style) { return st.push(end, style); },
+ lineClasses, forceToEnd)
+ var state = context.state
+
+ // Run overlays, adjust style array.
+ var loop = function ( o ) {
+ var overlay = cm.state.overlays[o], i = 1, at = 0
+ context.state = true
+ runMode(cm, line.text, overlay.mode, context, function (end, style) {
+ var start = i
+ // Ensure there's a token end at the current position, and that i points at it
+ while (at < end) {
+ var i_end = st[i]
+ if (i_end > end)
+ { st.splice(i, 1, end, st[i+1], i_end) }
+ i += 2
+ at = Math.min(end, i_end)
+ }
+ if (!style) { return }
+ if (overlay.opaque) {
+ st.splice(start, i - start, end, "overlay " + style)
+ i = start + 2
+ } else {
+ for (; start < i; start += 2) {
+ var cur = st[start+1]
+ st[start+1] = (cur ? cur + " " : "") + "overlay " + style
+ }
+ }
+ }, lineClasses)
+ };
+
+ for (var o = 0; o < cm.state.overlays.length; ++o) loop( o );
+ context.state = state
+
+ return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}
+}
+
+function getLineStyles(cm, line, updateFrontier) {
+ if (!line.styles || line.styles[0] != cm.state.modeGen) {
+ var context = getContextBefore(cm, lineNo(line))
+ var resetState = line.text.length > cm.options.maxHighlightLength && copyState(cm.doc.mode, context.state)
+ var result = highlightLine(cm, line, context)
+ if (resetState) { context.state = resetState }
+ line.stateAfter = context.save(!resetState)
+ line.styles = result.styles
+ if (result.classes) { line.styleClasses = result.classes }
+ else if (line.styleClasses) { line.styleClasses = null }
+ if (updateFrontier === cm.doc.highlightFrontier)
+ { cm.doc.modeFrontier = Math.max(cm.doc.modeFrontier, ++cm.doc.highlightFrontier) }
+ }
+ return line.styles
+}
+
+function getContextBefore(cm, n, precise) {
+ var doc = cm.doc, display = cm.display
+ if (!doc.mode.startState) { return new Context(doc, true, n) }
+ var start = findStartLine(cm, n, precise)
+ var saved = start > doc.first && getLine(doc, start - 1).stateAfter
+ var context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start)
+
+ doc.iter(start, n, function (line) {
+ processLine(cm, line.text, context)
+ var pos = context.line
+ line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null
+ context.nextLine()
+ })
+ if (precise) { doc.modeFrontier = context.line }
+ return context
+}
+
+// Lightweight form of highlight -- proceed over this line and
+// update state, but don't save a style array. Used for lines that
+// aren't currently visible.
+function processLine(cm, text, context, startAt) {
+ var mode = cm.doc.mode
+ var stream = new StringStream(text, cm.options.tabSize, context)
+ stream.start = stream.pos = startAt || 0
+ if (text == "") { callBlankLine(mode, context.state) }
+ while (!stream.eol()) {
+ readToken(mode, stream, context.state)
+ stream.start = stream.pos
+ }
+}
+
+function callBlankLine(mode, state) {
+ if (mode.blankLine) { return mode.blankLine(state) }
+ if (!mode.innerMode) { return }
+ var inner = innerMode(mode, state)
+ if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) }
+}
+
+function readToken(mode, stream, state, inner) {
+ for (var i = 0; i < 10; i++) {
+ if (inner) { inner[0] = innerMode(mode, state).mode }
+ var style = mode.token(stream, state)
+ if (stream.pos > stream.start) { return style }
+ }
+ throw new Error("Mode " + mode.name + " failed to advance stream.")
+}
+
+var Token = function(stream, type, state) {
+ this.start = stream.start; this.end = stream.pos
+ this.string = stream.current()
+ this.type = type || null
+ this.state = state
+};
+
+// Utility for getTokenAt and getLineTokens
+function takeToken(cm, pos, precise, asArray) {
+ var doc = cm.doc, mode = doc.mode, style
+ pos = clipPos(doc, pos)
+ var line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise)
+ var stream = new StringStream(line.text, cm.options.tabSize, context), tokens
+ if (asArray) { tokens = [] }
+ while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
+ stream.start = stream.pos
+ style = readToken(mode, stream, context.state)
+ if (asArray) { tokens.push(new Token(stream, style, copyState(doc.mode, context.state))) }
+ }
+ return asArray ? tokens : new Token(stream, style, context.state)
+}
+
+function extractLineClasses(type, output) {
+ if (type) { for (;;) {
+ var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/)
+ if (!lineClass) { break }
+ type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length)
+ var prop = lineClass[1] ? "bgClass" : "textClass"
+ if (output[prop] == null)
+ { output[prop] = lineClass[2] }
+ else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop]))
+ { output[prop] += " " + lineClass[2] }
+ } }
+ return type
+}
+
+// Run the given mode's parser over a line, calling f for each token.
+function runMode(cm, text, mode, context, f, lineClasses, forceToEnd) {
+ var flattenSpans = mode.flattenSpans
+ if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans }
+ var curStart = 0, curStyle = null
+ var stream = new StringStream(text, cm.options.tabSize, context), style
+ var inner = cm.options.addModeClass && [null]
+ if (text == "") { extractLineClasses(callBlankLine(mode, context.state), lineClasses) }
+ while (!stream.eol()) {
+ if (stream.pos > cm.options.maxHighlightLength) {
+ flattenSpans = false
+ if (forceToEnd) { processLine(cm, text, context, stream.pos) }
+ stream.pos = text.length
+ style = null
+ } else {
+ style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses)
+ }
+ if (inner) {
+ var mName = inner[0].name
+ if (mName) { style = "m-" + (style ? mName + " " + style : mName) }
+ }
+ if (!flattenSpans || curStyle != style) {
+ while (curStart < stream.start) {
+ curStart = Math.min(stream.start, curStart + 5000)
+ f(curStart, curStyle)
+ }
+ curStyle = style
+ }
+ stream.start = stream.pos
+ }
+ while (curStart < stream.pos) {
+ // Webkit seems to refuse to render text nodes longer than 57444
+ // characters, and returns inaccurate measurements in nodes
+ // starting around 5000 chars.
+ var pos = Math.min(stream.pos, curStart + 5000)
+ f(pos, curStyle)
+ curStart = pos
+ }
+}
+
+// Finds the line to start with when starting a parse. Tries to
+// find a line with a stateAfter, so that it can start with a
+// valid state. If that fails, it returns the line with the
+// smallest indentation, which tends to need the least context to
+// parse correctly.
+function findStartLine(cm, n, precise) {
+ var minindent, minline, doc = cm.doc
+ var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100)
+ for (var search = n; search > lim; --search) {
+ if (search <= doc.first) { return doc.first }
+ var line = getLine(doc, search - 1), after = line.stateAfter
+ if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier))
+ { return search }
+ var indented = countColumn(line.text, null, cm.options.tabSize)
+ if (minline == null || minindent > indented) {
+ minline = search - 1
+ minindent = indented
+ }
+ }
+ return minline
+}
+
+function retreatFrontier(doc, n) {
+ doc.modeFrontier = Math.min(doc.modeFrontier, n)
+ if (doc.highlightFrontier < n - 10) { return }
+ var start = doc.first
+ for (var line = n - 1; line > start; line--) {
+ var saved = getLine(doc, line).stateAfter
+ // change is on 3
+ // state on line 1 looked ahead 2 -- so saw 3
+ // test 1 + 2 < 3 should cover this
+ if (saved && (!(saved instanceof SavedContext) || line + saved.lookAhead < n)) {
+ start = line + 1
+ break
+ }
+ }
+ doc.highlightFrontier = Math.min(doc.highlightFrontier, start)
+}
+
+// LINE DATA STRUCTURE
+
+// Line objects. These hold state related to a line, including
+// highlighting info (the styles array).
+var Line = function(text, markedSpans, estimateHeight) {
+ this.text = text
+ attachMarkedSpans(this, markedSpans)
+ this.height = estimateHeight ? estimateHeight(this) : 1
+};
+
+Line.prototype.lineNo = function () { return lineNo(this) };
+eventMixin(Line)
+
+// Change the content (text, markers) of a line. Automatically
+// invalidates cached information and tries to re-estimate the
+// line's height.
+function updateLine(line, text, markedSpans, estimateHeight) {
+ line.text = text
+ if (line.stateAfter) { line.stateAfter = null }
+ if (line.styles) { line.styles = null }
+ if (line.order != null) { line.order = null }
+ detachMarkedSpans(line)
+ attachMarkedSpans(line, markedSpans)
+ var estHeight = estimateHeight ? estimateHeight(line) : 1
+ if (estHeight != line.height) { updateLineHeight(line, estHeight) }
+}
+
+// Detach a line from the document tree and its markers.
+function cleanUpLine(line) {
+ line.parent = null
+ detachMarkedSpans(line)
+}
+
+// Convert a style as returned by a mode (either null, or a string
+// containing one or more styles) to a CSS style. This is cached,
+// and also looks for line-wide styles.
+var styleToClassCache = {};
+var styleToClassCacheWithMode = {};
+function interpretTokenStyle(style, options) {
+ if (!style || /^\s*$/.test(style)) { return null }
+ var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache
+ return cache[style] ||
+ (cache[style] = style.replace(/\S+/g, "cm-$&"))
+}
+
+// Render the DOM representation of the text of a line. Also builds
+// up a 'line map', which points at the DOM nodes that represent
+// specific stretches of text, and is used by the measuring code.
+// The returned object contains the DOM node, this map, and
+// information about line-wide styles that were set by the mode.
+function buildLineContent(cm, lineView) {
+ // The padding-right forces the element to have a 'border', which
+ // is needed on Webkit to be able to get line-level bounding
+ // rectangles for it (in measureChar).
+ var content = eltP("span", null, null, webkit ? "padding-right: .1px" : null)
+ var builder = {pre: eltP("pre", [content], "CodeMirror-line"), content: content,
+ col: 0, pos: 0, cm: cm,
+ trailingSpace: false,
+ splitSpaces: (ie || webkit) && cm.getOption("lineWrapping")}
+ lineView.measure = {}
+
+ // Iterate over the logical lines that make up this visual line.
+ for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
+ var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0)
+ builder.pos = 0
+ builder.addToken = buildToken
+ // Optionally wire in some hacks into the token-rendering
+ // algorithm, to deal with browser quirks.
+ if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction)))
+ { builder.addToken = buildTokenBadBidi(builder.addToken, order) }
+ builder.map = []
+ var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line)
+ insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate))
+ if (line.styleClasses) {
+ if (line.styleClasses.bgClass)
+ { builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || "") }
+ if (line.styleClasses.textClass)
+ { builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || "") }
+ }
+
+ // Ensure at least a single node is present, for measuring.
+ if (builder.map.length == 0)
+ { builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))) }
+
+ // Store the map and a cache object for the current logical line
+ if (i == 0) {
+ lineView.measure.map = builder.map
+ lineView.measure.cache = {}
+ } else {
+ ;(lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map)
+ ;(lineView.measure.caches || (lineView.measure.caches = [])).push({})
+ }
+ }
+
+ // See issue #2901
+ if (webkit) {
+ var last = builder.content.lastChild
+ if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab")))
+ { builder.content.className = "cm-tab-wrap-hack" }
+ }
+
+ signal(cm, "renderLine", cm, lineView.line, builder.pre)
+ if (builder.pre.className)
+ { builder.textClass = joinClasses(builder.pre.className, builder.textClass || "") }
+
+ return builder
+}
+
+function defaultSpecialCharPlaceholder(ch) {
+ var token = elt("span", "\u2022", "cm-invalidchar")
+ token.title = "\\u" + ch.charCodeAt(0).toString(16)
+ token.setAttribute("aria-label", token.title)
+ return token
+}
+
+// Build up the DOM representation for a single token, and add it to
+// the line map. Takes care to render special characters separately.
+function buildToken(builder, text, style, startStyle, endStyle, title, css) {
+ if (!text) { return }
+ var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text
+ var special = builder.cm.state.specialChars, mustWrap = false
+ var content
+ if (!special.test(text)) {
+ builder.col += text.length
+ content = document.createTextNode(displayText)
+ builder.map.push(builder.pos, builder.pos + text.length, content)
+ if (ie && ie_version < 9) { mustWrap = true }
+ builder.pos += text.length
+ } else {
+ content = document.createDocumentFragment()
+ var pos = 0
+ while (true) {
+ special.lastIndex = pos
+ var m = special.exec(text)
+ var skipped = m ? m.index - pos : text.length - pos
+ if (skipped) {
+ var txt = document.createTextNode(displayText.slice(pos, pos + skipped))
+ if (ie && ie_version < 9) { content.appendChild(elt("span", [txt])) }
+ else { content.appendChild(txt) }
+ builder.map.push(builder.pos, builder.pos + skipped, txt)
+ builder.col += skipped
+ builder.pos += skipped
+ }
+ if (!m) { break }
+ pos += skipped + 1
+ var txt$1 = (void 0)
+ if (m[0] == "\t") {
+ var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize
+ txt$1 = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"))
+ txt$1.setAttribute("role", "presentation")
+ txt$1.setAttribute("cm-text", "\t")
+ builder.col += tabWidth
+ } else if (m[0] == "\r" || m[0] == "\n") {
+ txt$1 = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar"))
+ txt$1.setAttribute("cm-text", m[0])
+ builder.col += 1
+ } else {
+ txt$1 = builder.cm.options.specialCharPlaceholder(m[0])
+ txt$1.setAttribute("cm-text", m[0])
+ if (ie && ie_version < 9) { content.appendChild(elt("span", [txt$1])) }
+ else { content.appendChild(txt$1) }
+ builder.col += 1
+ }
+ builder.map.push(builder.pos, builder.pos + 1, txt$1)
+ builder.pos++
+ }
+ }
+ builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32
+ if (style || startStyle || endStyle || mustWrap || css) {
+ var fullStyle = style || ""
+ if (startStyle) { fullStyle += startStyle }
+ if (endStyle) { fullStyle += endStyle }
+ var token = elt("span", [content], fullStyle, css)
+ if (title) { token.title = title }
+ return builder.content.appendChild(token)
+ }
+ builder.content.appendChild(content)
+}
+
+function splitSpaces(text, trailingBefore) {
+ if (text.length > 1 && !/ /.test(text)) { return text }
+ var spaceBefore = trailingBefore, result = ""
+ for (var i = 0; i < text.length; i++) {
+ var ch = text.charAt(i)
+ if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32))
+ { ch = "\u00a0" }
+ result += ch
+ spaceBefore = ch == " "
+ }
+ return result
+}
+
+// Work around nonsense dimensions being reported for stretches of
+// right-to-left text.
+function buildTokenBadBidi(inner, order) {
+ return function (builder, text, style, startStyle, endStyle, title, css) {
+ style = style ? style + " cm-force-border" : "cm-force-border"
+ var start = builder.pos, end = start + text.length
+ for (;;) {
+ // Find the part that overlaps with the start of this text
+ var part = (void 0)
+ for (var i = 0; i < order.length; i++) {
+ part = order[i]
+ if (part.to > start && part.from <= start) { break }
+ }
+ if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, title, css) }
+ inner(builder, text.slice(0, part.to - start), style, startStyle, null, title, css)
+ startStyle = null
+ text = text.slice(part.to - start)
+ start = part.to
+ }
+ }
+}
+
+function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
+ var widget = !ignoreWidget && marker.widgetNode
+ if (widget) { builder.map.push(builder.pos, builder.pos + size, widget) }
+ if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
+ if (!widget)
+ { widget = builder.content.appendChild(document.createElement("span")) }
+ widget.setAttribute("cm-marker", marker.id)
+ }
+ if (widget) {
+ builder.cm.display.input.setUneditable(widget)
+ builder.content.appendChild(widget)
+ }
+ builder.pos += size
+ builder.trailingSpace = false
+}
+
+// Outputs a number of spans to make up a line, taking highlighting
+// and marked text into account.
+function insertLineContent(line, builder, styles) {
+ var spans = line.markedSpans, allText = line.text, at = 0
+ if (!spans) {
+ for (var i$1 = 1; i$1 < styles.length; i$1+=2)
+ { builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)) }
+ return
+ }
+
+ var len = allText.length, pos = 0, i = 1, text = "", style, css
+ var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed
+ for (;;) {
+ if (nextChange == pos) { // Update current marker set
+ spanStyle = spanEndStyle = spanStartStyle = title = css = ""
+ collapsed = null; nextChange = Infinity
+ var foundBookmarks = [], endStyles = (void 0)
+ for (var j = 0; j < spans.length; ++j) {
+ var sp = spans[j], m = sp.marker
+ if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
+ foundBookmarks.push(m)
+ } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {
+ if (sp.to != null && sp.to != pos && nextChange > sp.to) {
+ nextChange = sp.to
+ spanEndStyle = ""
+ }
+ if (m.className) { spanStyle += " " + m.className }
+ if (m.css) { css = (css ? css + ";" : "") + m.css }
+ if (m.startStyle && sp.from == pos) { spanStartStyle += " " + m.startStyle }
+ if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to) }
+ if (m.title && !title) { title = m.title }
+ if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
+ { collapsed = sp }
+ } else if (sp.from > pos && nextChange > sp.from) {
+ nextChange = sp.from
+ }
+ }
+ if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2)
+ { if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += " " + endStyles[j$1] } } }
+
+ if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2)
+ { buildCollapsedSpan(builder, 0, foundBookmarks[j$2]) } }
+ if (collapsed && (collapsed.from || 0) == pos) {
+ buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
+ collapsed.marker, collapsed.from == null)
+ if (collapsed.to == null) { return }
+ if (collapsed.to == pos) { collapsed = false }
+ }
+ }
+ if (pos >= len) { break }
+
+ var upto = Math.min(len, nextChange)
+ while (true) {
+ if (text) {
+ var end = pos + text.length
+ if (!collapsed) {
+ var tokenText = end > upto ? text.slice(0, upto - pos) : text
+ builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
+ spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title, css)
+ }
+ if (end >= upto) {text = text.slice(upto - pos); pos = upto; break}
+ pos = end
+ spanStartStyle = ""
+ }
+ text = allText.slice(at, at = styles[i++])
+ style = interpretTokenStyle(styles[i++], builder.cm.options)
+ }
+ }
+}
+
+
+// These objects are used to represent the visible (currently drawn)
+// part of the document. A LineView may correspond to multiple
+// logical lines, if those are connected by collapsed ranges.
+function LineView(doc, line, lineN) {
+ // The starting line
+ this.line = line
+ // Continuing lines, if any
+ this.rest = visualLineContinued(line)
+ // Number of logical lines in this visual line
+ this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1
+ this.node = this.text = null
+ this.hidden = lineIsHidden(doc, line)
+}
+
+// Create a range of LineView objects for the given lines.
+function buildViewArray(cm, from, to) {
+ var array = [], nextPos
+ for (var pos = from; pos < to; pos = nextPos) {
+ var view = new LineView(cm.doc, getLine(cm.doc, pos), pos)
+ nextPos = pos + view.size
+ array.push(view)
+ }
+ return array
+}
+
+var operationGroup = null
+
+function pushOperation(op) {
+ if (operationGroup) {
+ operationGroup.ops.push(op)
+ } else {
+ op.ownsGroup = operationGroup = {
+ ops: [op],
+ delayedCallbacks: []
+ }
+ }
+}
+
+function fireCallbacksForOps(group) {
+ // Calls delayed callbacks and cursorActivity handlers until no
+ // new ones appear
+ var callbacks = group.delayedCallbacks, i = 0
+ do {
+ for (; i < callbacks.length; i++)
+ { callbacks[i].call(null) }
+ for (var j = 0; j < group.ops.length; j++) {
+ var op = group.ops[j]
+ if (op.cursorActivityHandlers)
+ { while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
+ { op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm) } }
+ }
+ } while (i < callbacks.length)
+}
+
+function finishOperation(op, endCb) {
+ var group = op.ownsGroup
+ if (!group) { return }
+
+ try { fireCallbacksForOps(group) }
+ finally {
+ operationGroup = null
+ endCb(group)
+ }
+}
+
+var orphanDelayedCallbacks = null
+
+// Often, we want to signal events at a point where we are in the
+// middle of some work, but don't want the handler to start calling
+// other methods on the editor, which might be in an inconsistent
+// state or simply not expect any other events to happen.
+// signalLater looks whether there are any handlers, and schedules
+// them to be executed when the last operation ends, or, if no
+// operation is active, when a timeout fires.
+function signalLater(emitter, type /*, values...*/) {
+ var arr = getHandlers(emitter, type)
+ if (!arr.length) { return }
+ var args = Array.prototype.slice.call(arguments, 2), list
+ if (operationGroup) {
+ list = operationGroup.delayedCallbacks
+ } else if (orphanDelayedCallbacks) {
+ list = orphanDelayedCallbacks
+ } else {
+ list = orphanDelayedCallbacks = []
+ setTimeout(fireOrphanDelayed, 0)
+ }
+ var loop = function ( i ) {
+ list.push(function () { return arr[i].apply(null, args); })
+ };
+
+ for (var i = 0; i < arr.length; ++i)
+ loop( i );
+}
+
+function fireOrphanDelayed() {
+ var delayed = orphanDelayedCallbacks
+ orphanDelayedCallbacks = null
+ for (var i = 0; i < delayed.length; ++i) { delayed[i]() }
+}
+
+// When an aspect of a line changes, a string is added to
+// lineView.changes. This updates the relevant part of the line's
+// DOM structure.
+function updateLineForChanges(cm, lineView, lineN, dims) {
+ for (var j = 0; j < lineView.changes.length; j++) {
+ var type = lineView.changes[j]
+ if (type == "text") { updateLineText(cm, lineView) }
+ else if (type == "gutter") { updateLineGutter(cm, lineView, lineN, dims) }
+ else if (type == "class") { updateLineClasses(cm, lineView) }
+ else if (type == "widget") { updateLineWidgets(cm, lineView, dims) }
+ }
+ lineView.changes = null
+}
+
+// Lines with gutter elements, widgets or a background class need to
+// be wrapped, and have the extra elements added to the wrapper div
+function ensureLineWrapped(lineView) {
+ if (lineView.node == lineView.text) {
+ lineView.node = elt("div", null, null, "position: relative")
+ if (lineView.text.parentNode)
+ { lineView.text.parentNode.replaceChild(lineView.node, lineView.text) }
+ lineView.node.appendChild(lineView.text)
+ if (ie && ie_version < 8) { lineView.node.style.zIndex = 2 }
+ }
+ return lineView.node
+}
+
+function updateLineBackground(cm, lineView) {
+ var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass
+ if (cls) { cls += " CodeMirror-linebackground" }
+ if (lineView.background) {
+ if (cls) { lineView.background.className = cls }
+ else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null }
+ } else if (cls) {
+ var wrap = ensureLineWrapped(lineView)
+ lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild)
+ cm.display.input.setUneditable(lineView.background)
+ }
+}
+
+// Wrapper around buildLineContent which will reuse the structure
+// in display.externalMeasured when possible.
+function getLineContent(cm, lineView) {
+ var ext = cm.display.externalMeasured
+ if (ext && ext.line == lineView.line) {
+ cm.display.externalMeasured = null
+ lineView.measure = ext.measure
+ return ext.built
+ }
+ return buildLineContent(cm, lineView)
+}
+
+// Redraw the line's text. Interacts with the background and text
+// classes because the mode may output tokens that influence these
+// classes.
+function updateLineText(cm, lineView) {
+ var cls = lineView.text.className
+ var built = getLineContent(cm, lineView)
+ if (lineView.text == lineView.node) { lineView.node = built.pre }
+ lineView.text.parentNode.replaceChild(built.pre, lineView.text)
+ lineView.text = built.pre
+ if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
+ lineView.bgClass = built.bgClass
+ lineView.textClass = built.textClass
+ updateLineClasses(cm, lineView)
+ } else if (cls) {
+ lineView.text.className = cls
+ }
+}
+
+function updateLineClasses(cm, lineView) {
+ updateLineBackground(cm, lineView)
+ if (lineView.line.wrapClass)
+ { ensureLineWrapped(lineView).className = lineView.line.wrapClass }
+ else if (lineView.node != lineView.text)
+ { lineView.node.className = "" }
+ var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass
+ lineView.text.className = textClass || ""
+}
+
+function updateLineGutter(cm, lineView, lineN, dims) {
+ if (lineView.gutter) {
+ lineView.node.removeChild(lineView.gutter)
+ lineView.gutter = null
+ }
+ if (lineView.gutterBackground) {
+ lineView.node.removeChild(lineView.gutterBackground)
+ lineView.gutterBackground = null
+ }
+ if (lineView.line.gutterClass) {
+ var wrap = ensureLineWrapped(lineView)
+ lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass,
+ ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px; width: " + (dims.gutterTotalWidth) + "px"))
+ cm.display.input.setUneditable(lineView.gutterBackground)
+ wrap.insertBefore(lineView.gutterBackground, lineView.text)
+ }
+ var markers = lineView.line.gutterMarkers
+ if (cm.options.lineNumbers || markers) {
+ var wrap$1 = ensureLineWrapped(lineView)
+ var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"))
+ cm.display.input.setUneditable(gutterWrap)
+ wrap$1.insertBefore(gutterWrap, lineView.text)
+ if (lineView.line.gutterClass)
+ { gutterWrap.className += " " + lineView.line.gutterClass }
+ if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
+ { lineView.lineNumber = gutterWrap.appendChild(
+ elt("div", lineNumberFor(cm.options, lineN),
+ "CodeMirror-linenumber CodeMirror-gutter-elt",
+ ("left: " + (dims.gutterLeft["CodeMirror-linenumbers"]) + "px; width: " + (cm.display.lineNumInnerWidth) + "px"))) }
+ if (markers) { for (var k = 0; k < cm.options.gutters.length; ++k) {
+ var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id]
+ if (found)
+ { gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt",
+ ("left: " + (dims.gutterLeft[id]) + "px; width: " + (dims.gutterWidth[id]) + "px"))) }
+ } }
+ }
+}
+
+function updateLineWidgets(cm, lineView, dims) {
+ if (lineView.alignable) { lineView.alignable = null }
+ for (var node = lineView.node.firstChild, next = (void 0); node; node = next) {
+ next = node.nextSibling
+ if (node.className == "CodeMirror-linewidget")
+ { lineView.node.removeChild(node) }
+ }
+ insertLineWidgets(cm, lineView, dims)
+}
+
+// Build a line's DOM representation from scratch
+function buildLineElement(cm, lineView, lineN, dims) {
+ var built = getLineContent(cm, lineView)
+ lineView.text = lineView.node = built.pre
+ if (built.bgClass) { lineView.bgClass = built.bgClass }
+ if (built.textClass) { lineView.textClass = built.textClass }
+
+ updateLineClasses(cm, lineView)
+ updateLineGutter(cm, lineView, lineN, dims)
+ insertLineWidgets(cm, lineView, dims)
+ return lineView.node
+}
+
+// A lineView may contain multiple logical lines (when merged by
+// collapsed spans). The widgets for all of them need to be drawn.
+function insertLineWidgets(cm, lineView, dims) {
+ insertLineWidgetsFor(cm, lineView.line, lineView, dims, true)
+ if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
+ { insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false) } }
+}
+
+function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
+ if (!line.widgets) { return }
+ var wrap = ensureLineWrapped(lineView)
+ for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
+ var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget")
+ if (!widget.handleMouseEvents) { node.setAttribute("cm-ignore-events", "true") }
+ positionLineWidget(widget, node, lineView, dims)
+ cm.display.input.setUneditable(node)
+ if (allowAbove && widget.above)
+ { wrap.insertBefore(node, lineView.gutter || lineView.text) }
+ else
+ { wrap.appendChild(node) }
+ signalLater(widget, "redraw")
+ }
+}
+
+function positionLineWidget(widget, node, lineView, dims) {
+ if (widget.noHScroll) {
+ ;(lineView.alignable || (lineView.alignable = [])).push(node)
+ var width = dims.wrapperWidth
+ node.style.left = dims.fixedPos + "px"
+ if (!widget.coverGutter) {
+ width -= dims.gutterTotalWidth
+ node.style.paddingLeft = dims.gutterTotalWidth + "px"
+ }
+ node.style.width = width + "px"
+ }
+ if (widget.coverGutter) {
+ node.style.zIndex = 5
+ node.style.position = "relative"
+ if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + "px" }
+ }
+}
+
+function widgetHeight(widget) {
+ if (widget.height != null) { return widget.height }
+ var cm = widget.doc.cm
+ if (!cm) { return 0 }
+ if (!contains(document.body, widget.node)) {
+ var parentStyle = "position: relative;"
+ if (widget.coverGutter)
+ { parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;" }
+ if (widget.noHScroll)
+ { parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;" }
+ removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle))
+ }
+ return widget.height = widget.node.parentNode.offsetHeight
+}
+
+// Return true when the given mouse event happened in a widget
+function eventInWidget(display, e) {
+ for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
+ if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
+ (n.parentNode == display.sizer && n != display.mover))
+ { return true }
+ }
+}
+
+// POSITION MEASUREMENT
+
+function paddingTop(display) {return display.lineSpace.offsetTop}
+function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight}
+function paddingH(display) {
+ if (display.cachedPaddingH) { return display.cachedPaddingH }
+ var e = removeChildrenAndAdd(display.measure, elt("pre", "x"))
+ var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle
+ var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)}
+ if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data }
+ return data
+}
+
+function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth }
+function displayWidth(cm) {
+ return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth
+}
+function displayHeight(cm) {
+ return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight
+}
+
+// Ensure the lineView.wrapping.heights array is populated. This is
+// an array of bottom offsets for the lines that make up a drawn
+// line. When lineWrapping is on, there might be more than one
+// height.
+function ensureLineHeights(cm, lineView, rect) {
+ var wrapping = cm.options.lineWrapping
+ var curWidth = wrapping && displayWidth(cm)
+ if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
+ var heights = lineView.measure.heights = []
+ if (wrapping) {
+ lineView.measure.width = curWidth
+ var rects = lineView.text.firstChild.getClientRects()
+ for (var i = 0; i < rects.length - 1; i++) {
+ var cur = rects[i], next = rects[i + 1]
+ if (Math.abs(cur.bottom - next.bottom) > 2)
+ { heights.push((cur.bottom + next.top) / 2 - rect.top) }
+ }
+ }
+ heights.push(rect.bottom - rect.top)
+ }
+}
+
+// Find a line map (mapping character offsets to text nodes) and a
+// measurement cache for the given line number. (A line view might
+// contain multiple lines when collapsed ranges are present.)
+function mapFromLineView(lineView, line, lineN) {
+ if (lineView.line == line)
+ { return {map: lineView.measure.map, cache: lineView.measure.cache} }
+ for (var i = 0; i < lineView.rest.length; i++)
+ { if (lineView.rest[i] == line)
+ { return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } }
+ for (var i$1 = 0; i$1 < lineView.rest.length; i$1++)
+ { if (lineNo(lineView.rest[i$1]) > lineN)
+ { return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } }
+}
+
+// Render a line into the hidden node display.externalMeasured. Used
+// when measurement is needed for a line that's not in the viewport.
+function updateExternalMeasurement(cm, line) {
+ line = visualLine(line)
+ var lineN = lineNo(line)
+ var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN)
+ view.lineN = lineN
+ var built = view.built = buildLineContent(cm, view)
+ view.text = built.pre
+ removeChildrenAndAdd(cm.display.lineMeasure, built.pre)
+ return view
+}
+
+// Get a {top, bottom, left, right} box (in line-local coordinates)
+// for a given character.
+function measureChar(cm, line, ch, bias) {
+ return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias)
+}
+
+// Find a line view that corresponds to the given line number.
+function findViewForLine(cm, lineN) {
+ if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
+ { return cm.display.view[findViewIndex(cm, lineN)] }
+ var ext = cm.display.externalMeasured
+ if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
+ { return ext }
+}
+
+// Measurement can be split in two steps, the set-up work that
+// applies to the whole line, and the measurement of the actual
+// character. Functions like coordsChar, that need to do a lot of
+// measurements in a row, can thus ensure that the set-up work is
+// only done once.
+function prepareMeasureForLine(cm, line) {
+ var lineN = lineNo(line)
+ var view = findViewForLine(cm, lineN)
+ if (view && !view.text) {
+ view = null
+ } else if (view && view.changes) {
+ updateLineForChanges(cm, view, lineN, getDimensions(cm))
+ cm.curOp.forceUpdate = true
+ }
+ if (!view)
+ { view = updateExternalMeasurement(cm, line) }
+
+ var info = mapFromLineView(view, line, lineN)
+ return {
+ line: line, view: view, rect: null,
+ map: info.map, cache: info.cache, before: info.before,
+ hasHeights: false
+ }
+}
+
+// Given a prepared measurement object, measures the position of an
+// actual character (or fetches it from the cache).
+function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
+ if (prepared.before) { ch = -1 }
+ var key = ch + (bias || ""), found
+ if (prepared.cache.hasOwnProperty(key)) {
+ found = prepared.cache[key]
+ } else {
+ if (!prepared.rect)
+ { prepared.rect = prepared.view.text.getBoundingClientRect() }
+ if (!prepared.hasHeights) {
+ ensureLineHeights(cm, prepared.view, prepared.rect)
+ prepared.hasHeights = true
+ }
+ found = measureCharInner(cm, prepared, ch, bias)
+ if (!found.bogus) { prepared.cache[key] = found }
+ }
+ return {left: found.left, right: found.right,
+ top: varHeight ? found.rtop : found.top,
+ bottom: varHeight ? found.rbottom : found.bottom}
+}
+
+var nullRect = {left: 0, right: 0, top: 0, bottom: 0}
+
+function nodeAndOffsetInLineMap(map, ch, bias) {
+ var node, start, end, collapse, mStart, mEnd
+ // First, search the line map for the text node corresponding to,
+ // or closest to, the target character.
+ for (var i = 0; i < map.length; i += 3) {
+ mStart = map[i]
+ mEnd = map[i + 1]
+ if (ch < mStart) {
+ start = 0; end = 1
+ collapse = "left"
+ } else if (ch < mEnd) {
+ start = ch - mStart
+ end = start + 1
+ } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
+ end = mEnd - mStart
+ start = end - 1
+ if (ch >= mEnd) { collapse = "right" }
+ }
+ if (start != null) {
+ node = map[i + 2]
+ if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
+ { collapse = bias }
+ if (bias == "left" && start == 0)
+ { while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
+ node = map[(i -= 3) + 2]
+ collapse = "left"
+ } }
+ if (bias == "right" && start == mEnd - mStart)
+ { while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
+ node = map[(i += 3) + 2]
+ collapse = "right"
+ } }
+ break
+ }
+ }
+ return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd}
+}
+
+function getUsefulRect(rects, bias) {
+ var rect = nullRect
+ if (bias == "left") { for (var i = 0; i < rects.length; i++) {
+ if ((rect = rects[i]).left != rect.right) { break }
+ } } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) {
+ if ((rect = rects[i$1]).left != rect.right) { break }
+ } }
+ return rect
+}
+
+function measureCharInner(cm, prepared, ch, bias) {
+ var place = nodeAndOffsetInLineMap(prepared.map, ch, bias)
+ var node = place.node, start = place.start, end = place.end, collapse = place.collapse
+
+ var rect
+ if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
+ for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned
+ while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start }
+ while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end }
+ if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart)
+ { rect = node.parentNode.getBoundingClientRect() }
+ else
+ { rect = getUsefulRect(range(node, start, end).getClientRects(), bias) }
+ if (rect.left || rect.right || start == 0) { break }
+ end = start
+ start = start - 1
+ collapse = "right"
+ }
+ if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect) }
+ } else { // If it is a widget, simply get the box for the whole widget.
+ if (start > 0) { collapse = bias = "right" }
+ var rects
+ if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
+ { rect = rects[bias == "right" ? rects.length - 1 : 0] }
+ else
+ { rect = node.getBoundingClientRect() }
+ }
+ if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
+ var rSpan = node.parentNode.getClientRects()[0]
+ if (rSpan)
+ { rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom} }
+ else
+ { rect = nullRect }
+ }
+
+ var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top
+ var mid = (rtop + rbot) / 2
+ var heights = prepared.view.measure.heights
+ var i = 0
+ for (; i < heights.length - 1; i++)
+ { if (mid < heights[i]) { break } }
+ var top = i ? heights[i - 1] : 0, bot = heights[i]
+ var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
+ right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
+ top: top, bottom: bot}
+ if (!rect.left && !rect.right) { result.bogus = true }
+ if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot }
+
+ return result
+}
+
+// Work around problem with bounding client rects on ranges being
+// returned incorrectly when zoomed on IE10 and below.
+function maybeUpdateRectForZooming(measure, rect) {
+ if (!window.screen || screen.logicalXDPI == null ||
+ screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
+ { return rect }
+ var scaleX = screen.logicalXDPI / screen.deviceXDPI
+ var scaleY = screen.logicalYDPI / screen.deviceYDPI
+ return {left: rect.left * scaleX, right: rect.right * scaleX,
+ top: rect.top * scaleY, bottom: rect.bottom * scaleY}
+}
+
+function clearLineMeasurementCacheFor(lineView) {
+ if (lineView.measure) {
+ lineView.measure.cache = {}
+ lineView.measure.heights = null
+ if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
+ { lineView.measure.caches[i] = {} } }
+ }
+}
+
+function clearLineMeasurementCache(cm) {
+ cm.display.externalMeasure = null
+ removeChildren(cm.display.lineMeasure)
+ for (var i = 0; i < cm.display.view.length; i++)
+ { clearLineMeasurementCacheFor(cm.display.view[i]) }
+}
+
+function clearCaches(cm) {
+ clearLineMeasurementCache(cm)
+ cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null
+ if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true }
+ cm.display.lineNumChars = null
+}
+
+function pageScrollX() {
+ // Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206
+ // which causes page_Offset and bounding client rects to use
+ // different reference viewports and invalidate our calculations.
+ if (chrome && android) { return -(document.body.getBoundingClientRect().left - parseInt(getComputedStyle(document.body).marginLeft)) }
+ return window.pageXOffset || (document.documentElement || document.body).scrollLeft
+}
+function pageScrollY() {
+ if (chrome && android) { return -(document.body.getBoundingClientRect().top - parseInt(getComputedStyle(document.body).marginTop)) }
+ return window.pageYOffset || (document.documentElement || document.body).scrollTop
+}
+
+function widgetTopHeight(lineObj) {
+ var height = 0
+ if (lineObj.widgets) { for (var i = 0; i < lineObj.widgets.length; ++i) { if (lineObj.widgets[i].above)
+ { height += widgetHeight(lineObj.widgets[i]) } } }
+ return height
+}
+
+// Converts a {top, bottom, left, right} box from line-local
+// coordinates into another coordinate system. Context may be one of
+// "line", "div" (display.lineDiv), "local"./null (editor), "window",
+// or "page".
+function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) {
+ if (!includeWidgets) {
+ var height = widgetTopHeight(lineObj)
+ rect.top += height; rect.bottom += height
+ }
+ if (context == "line") { return rect }
+ if (!context) { context = "local" }
+ var yOff = heightAtLine(lineObj)
+ if (context == "local") { yOff += paddingTop(cm.display) }
+ else { yOff -= cm.display.viewOffset }
+ if (context == "page" || context == "window") {
+ var lOff = cm.display.lineSpace.getBoundingClientRect()
+ yOff += lOff.top + (context == "window" ? 0 : pageScrollY())
+ var xOff = lOff.left + (context == "window" ? 0 : pageScrollX())
+ rect.left += xOff; rect.right += xOff
+ }
+ rect.top += yOff; rect.bottom += yOff
+ return rect
+}
+
+// Coverts a box from "div" coords to another coordinate system.
+// Context may be "window", "page", "div", or "local"./null.
+function fromCoordSystem(cm, coords, context) {
+ if (context == "div") { return coords }
+ var left = coords.left, top = coords.top
+ // First move into "page" coordinate system
+ if (context == "page") {
+ left -= pageScrollX()
+ top -= pageScrollY()
+ } else if (context == "local" || !context) {
+ var localBox = cm.display.sizer.getBoundingClientRect()
+ left += localBox.left
+ top += localBox.top
+ }
+
+ var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect()
+ return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}
+}
+
+function charCoords(cm, pos, context, lineObj, bias) {
+ if (!lineObj) { lineObj = getLine(cm.doc, pos.line) }
+ return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context)
+}
+
+// Returns a box for a given cursor position, which may have an
+// 'other' property containing the position of the secondary cursor
+// on a bidi boundary.
+// A cursor Pos(line, char, "before") is on the same visual line as `char - 1`
+// and after `char - 1` in writing order of `char - 1`
+// A cursor Pos(line, char, "after") is on the same visual line as `char`
+// and before `char` in writing order of `char`
+// Examples (upper-case letters are RTL, lower-case are LTR):
+// Pos(0, 1, ...)
+// before after
+// ab a|b a|b
+// aB a|B aB|
+// Ab |Ab A|b
+// AB B|A B|A
+// Every position after the last character on a line is considered to stick
+// to the last character on the line.
+function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
+ lineObj = lineObj || getLine(cm.doc, pos.line)
+ if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj) }
+ function get(ch, right) {
+ var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight)
+ if (right) { m.left = m.right; } else { m.right = m.left }
+ return intoCoordSystem(cm, lineObj, m, context)
+ }
+ var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky
+ if (ch >= lineObj.text.length) {
+ ch = lineObj.text.length
+ sticky = "before"
+ } else if (ch <= 0) {
+ ch = 0
+ sticky = "after"
+ }
+ if (!order) { return get(sticky == "before" ? ch - 1 : ch, sticky == "before") }
+
+ function getBidi(ch, partPos, invert) {
+ var part = order[partPos], right = part.level == 1
+ return get(invert ? ch - 1 : ch, right != invert)
+ }
+ var partPos = getBidiPartAt(order, ch, sticky)
+ var other = bidiOther
+ var val = getBidi(ch, partPos, sticky == "before")
+ if (other != null) { val.other = getBidi(ch, other, sticky != "before") }
+ return val
+}
+
+// Used to cheaply estimate the coordinates for a position. Used for
+// intermediate scroll updates.
+function estimateCoords(cm, pos) {
+ var left = 0
+ pos = clipPos(cm.doc, pos)
+ if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch }
+ var lineObj = getLine(cm.doc, pos.line)
+ var top = heightAtLine(lineObj) + paddingTop(cm.display)
+ return {left: left, right: left, top: top, bottom: top + lineObj.height}
+}
+
+// Positions returned by coordsChar contain some extra information.
+// xRel is the relative x position of the input coordinates compared
+// to the found position (so xRel > 0 means the coordinates are to
+// the right of the character position, for example). When outside
+// is true, that means the coordinates lie outside the line's
+// vertical range.
+function PosWithInfo(line, ch, sticky, outside, xRel) {
+ var pos = Pos(line, ch, sticky)
+ pos.xRel = xRel
+ if (outside) { pos.outside = true }
+ return pos
+}
+
+// Compute the character position closest to the given coordinates.
+// Input must be lineSpace-local ("div" coordinate system).
+function coordsChar(cm, x, y) {
+ var doc = cm.doc
+ y += cm.display.viewOffset
+ if (y < 0) { return PosWithInfo(doc.first, 0, null, true, -1) }
+ var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1
+ if (lineN > last)
+ { return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, true, 1) }
+ if (x < 0) { x = 0 }
+
+ var lineObj = getLine(doc, lineN)
+ for (;;) {
+ var found = coordsCharInner(cm, lineObj, lineN, x, y)
+ var merged = collapsedSpanAtEnd(lineObj)
+ var mergedPos = merged && merged.find(0, true)
+ if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0))
+ { lineN = lineNo(lineObj = mergedPos.to.line) }
+ else
+ { return found }
+ }
+}
+
+function wrappedLineExtent(cm, lineObj, preparedMeasure, y) {
+ y -= widgetTopHeight(lineObj)
+ var end = lineObj.text.length
+ var begin = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch - 1).bottom <= y; }, end, 0)
+ end = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch).top > y; }, begin, end)
+ return {begin: begin, end: end}
+}
+
+function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) {
+ if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj) }
+ var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), "line").top
+ return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop)
+}
+
+// Returns true if the given side of a box is after the given
+// coordinates, in top-to-bottom, left-to-right order.
+function boxIsAfter(box, x, y, left) {
+ return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x
+}
+
+function coordsCharInner(cm, lineObj, lineNo, x, y) {
+ // Move y into line-local coordinate space
+ y -= heightAtLine(lineObj)
+ var preparedMeasure = prepareMeasureForLine(cm, lineObj)
+ // When directly calling `measureCharPrepared`, we have to adjust
+ // for the widgets at this line.
+ var widgetHeight = widgetTopHeight(lineObj)
+ var begin = 0, end = lineObj.text.length, ltr = true
+
+ var order = getOrder(lineObj, cm.doc.direction)
+ // If the line isn't plain left-to-right text, first figure out
+ // which bidi section the coordinates fall into.
+ if (order) {
+ var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart)
+ (cm, lineObj, lineNo, preparedMeasure, order, x, y)
+ ltr = part.level != 1
+ // The awkward -1 offsets are needed because findFirst (called
+ // on these below) will treat its first bound as inclusive,
+ // second as exclusive, but we want to actually address the
+ // characters in the part's range
+ begin = ltr ? part.from : part.to - 1
+ end = ltr ? part.to : part.from - 1
+ }
+
+ // A binary search to find the first character whose bounding box
+ // starts after the coordinates. If we run across any whose box wrap
+ // the coordinates, store that.
+ var chAround = null, boxAround = null
+ var ch = findFirst(function (ch) {
+ var box = measureCharPrepared(cm, preparedMeasure, ch)
+ box.top += widgetHeight; box.bottom += widgetHeight
+ if (!boxIsAfter(box, x, y, false)) { return false }
+ if (box.top <= y && box.left <= x) {
+ chAround = ch
+ boxAround = box
+ }
+ return true
+ }, begin, end)
+
+ var baseX, sticky, outside = false
+ // If a box around the coordinates was found, use that
+ if (boxAround) {
+ // Distinguish coordinates nearer to the left or right side of the box
+ var atLeft = x - boxAround.left < boxAround.right - x, atStart = atLeft == ltr
+ ch = chAround + (atStart ? 0 : 1)
+ sticky = atStart ? "after" : "before"
+ baseX = atLeft ? boxAround.left : boxAround.right
+ } else {
+ // (Adjust for extended bound, if necessary.)
+ if (!ltr && (ch == end || ch == begin)) { ch++ }
+ // To determine which side to associate with, get the box to the
+ // left of the character and compare it's vertical position to the
+ // coordinates
+ sticky = ch == 0 ? "after" : ch == lineObj.text.length ? "before" :
+ (measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight <= y) == ltr ?
+ "after" : "before"
+ // Now get accurate coordinates for this place, in order to get a
+ // base X position
+ var coords = cursorCoords(cm, Pos(lineNo, ch, sticky), "line", lineObj, preparedMeasure)
+ baseX = coords.left
+ outside = y < coords.top || y >= coords.bottom
+ }
+
+ ch = skipExtendingChars(lineObj.text, ch, 1)
+ return PosWithInfo(lineNo, ch, sticky, outside, x - baseX)
+}
+
+function coordsBidiPart(cm, lineObj, lineNo, preparedMeasure, order, x, y) {
+ // Bidi parts are sorted left-to-right, and in a non-line-wrapping
+ // situation, we can take this ordering to correspond to the visual
+ // ordering. This finds the first part whose end is after the given
+ // coordinates.
+ var index = findFirst(function (i) {
+ var part = order[i], ltr = part.level != 1
+ return boxIsAfter(cursorCoords(cm, Pos(lineNo, ltr ? part.to : part.from, ltr ? "before" : "after"),
+ "line", lineObj, preparedMeasure), x, y, true)
+ }, 0, order.length - 1)
+ var part = order[index]
+ // If this isn't the first part, the part's start is also after
+ // the coordinates, and the coordinates aren't on the same line as
+ // that start, move one part back.
+ if (index > 0) {
+ var ltr = part.level != 1
+ var start = cursorCoords(cm, Pos(lineNo, ltr ? part.from : part.to, ltr ? "after" : "before"),
+ "line", lineObj, preparedMeasure)
+ if (boxIsAfter(start, x, y, true) && start.top > y)
+ { part = order[index - 1] }
+ }
+ return part
+}
+
+function coordsBidiPartWrapped(cm, lineObj, _lineNo, preparedMeasure, order, x, y) {
+ // In a wrapped line, rtl text on wrapping boundaries can do things
+ // that don't correspond to the ordering in our `order` array at
+ // all, so a binary search doesn't work, and we want to return a
+ // part that only spans one line so that the binary search in
+ // coordsCharInner is safe. As such, we first find the extent of the
+ // wrapped line, and then do a flat search in which we discard any
+ // spans that aren't on the line.
+ var ref = wrappedLineExtent(cm, lineObj, preparedMeasure, y);
+ var begin = ref.begin;
+ var end = ref.end;
+ var part = null, closestDist = null
+ for (var i = 0; i < order.length; i++) {
+ var p = order[i]
+ if (p.from >= end || p.to <= begin) { continue }
+ var ltr = p.level != 1
+ var endX = measureCharPrepared(cm, preparedMeasure, ltr ? Math.min(end, p.to) - 1 : Math.max(begin, p.from)).right
+ // Weigh against spans ending before this, so that they are only
+ // picked if nothing ends after
+ var dist = endX < x ? x - endX + 1e9 : endX - x
+ if (!part || closestDist > dist) {
+ part = p
+ closestDist = dist
+ }
+ }
+ if (!part) { part = order[order.length - 1] }
+ // Clip the part to the wrapped line.
+ if (part.from < begin) { part = {from: begin, to: part.to, level: part.level} }
+ if (part.to > end) { part = {from: part.from, to: end, level: part.level} }
+ return part
+}
+
+var measureText
+// Compute the default text height.
+function textHeight(display) {
+ if (display.cachedTextHeight != null) { return display.cachedTextHeight }
+ if (measureText == null) {
+ measureText = elt("pre")
+ // Measure a bunch of lines, for browsers that compute
+ // fractional heights.
+ for (var i = 0; i < 49; ++i) {
+ measureText.appendChild(document.createTextNode("x"))
+ measureText.appendChild(elt("br"))
+ }
+ measureText.appendChild(document.createTextNode("x"))
+ }
+ removeChildrenAndAdd(display.measure, measureText)
+ var height = measureText.offsetHeight / 50
+ if (height > 3) { display.cachedTextHeight = height }
+ removeChildren(display.measure)
+ return height || 1
+}
+
+// Compute the default character width.
+function charWidth(display) {
+ if (display.cachedCharWidth != null) { return display.cachedCharWidth }
+ var anchor = elt("span", "xxxxxxxxxx")
+ var pre = elt("pre", [anchor])
+ removeChildrenAndAdd(display.measure, pre)
+ var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10
+ if (width > 2) { display.cachedCharWidth = width }
+ return width || 10
+}
+
+// Do a bulk-read of the DOM positions and sizes needed to draw the
+// view, so that we don't interleave reading and writing to the DOM.
+function getDimensions(cm) {
+ var d = cm.display, left = {}, width = {}
+ var gutterLeft = d.gutters.clientLeft
+ for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
+ left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft
+ width[cm.options.gutters[i]] = n.clientWidth
+ }
+ return {fixedPos: compensateForHScroll(d),
+ gutterTotalWidth: d.gutters.offsetWidth,
+ gutterLeft: left,
+ gutterWidth: width,
+ wrapperWidth: d.wrapper.clientWidth}
+}
+
+// Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
+// but using getBoundingClientRect to get a sub-pixel-accurate
+// result.
+function compensateForHScroll(display) {
+ return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left
+}
+
+// Returns a function that estimates the height of a line, to use as
+// first approximation until the line becomes visible (and is thus
+// properly measurable).
+function estimateHeight(cm) {
+ var th = textHeight(cm.display), wrapping = cm.options.lineWrapping
+ var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3)
+ return function (line) {
+ if (lineIsHidden(cm.doc, line)) { return 0 }
+
+ var widgetsHeight = 0
+ if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) {
+ if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height }
+ } }
+
+ if (wrapping)
+ { return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th }
+ else
+ { return widgetsHeight + th }
+ }
+}
+
+function estimateLineHeights(cm) {
+ var doc = cm.doc, est = estimateHeight(cm)
+ doc.iter(function (line) {
+ var estHeight = est(line)
+ if (estHeight != line.height) { updateLineHeight(line, estHeight) }
+ })
+}
+
+// Given a mouse event, find the corresponding position. If liberal
+// is false, it checks whether a gutter or scrollbar was clicked,
+// and returns null if it was. forRect is used by rectangular
+// selections, and tries to estimate a character position even for
+// coordinates beyond the right of the text.
+function posFromMouse(cm, e, liberal, forRect) {
+ var display = cm.display
+ if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") { return null }
+
+ var x, y, space = display.lineSpace.getBoundingClientRect()
+ // Fails unpredictably on IE[67] when mouse is dragged around quickly.
+ try { x = e.clientX - space.left; y = e.clientY - space.top }
+ catch (e) { return null }
+ var coords = coordsChar(cm, x, y), line
+ if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
+ var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length
+ coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff))
+ }
+ return coords
+}
+
+// Find the view element corresponding to a given line. Return null
+// when the line isn't visible.
+function findViewIndex(cm, n) {
+ if (n >= cm.display.viewTo) { return null }
+ n -= cm.display.viewFrom
+ if (n < 0) { return null }
+ var view = cm.display.view
+ for (var i = 0; i < view.length; i++) {
+ n -= view[i].size
+ if (n < 0) { return i }
+ }
+}
+
+function updateSelection(cm) {
+ cm.display.input.showSelection(cm.display.input.prepareSelection())
+}
+
+function prepareSelection(cm, primary) {
+ if ( primary === void 0 ) primary = true;
+
+ var doc = cm.doc, result = {}
+ var curFragment = result.cursors = document.createDocumentFragment()
+ var selFragment = result.selection = document.createDocumentFragment()
+
+ for (var i = 0; i < doc.sel.ranges.length; i++) {
+ if (!primary && i == doc.sel.primIndex) { continue }
+ var range = doc.sel.ranges[i]
+ if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) { continue }
+ var collapsed = range.empty()
+ if (collapsed || cm.options.showCursorWhenSelecting)
+ { drawSelectionCursor(cm, range.head, curFragment) }
+ if (!collapsed)
+ { drawSelectionRange(cm, range, selFragment) }
+ }
+ return result
+}
+
+// Draws a cursor for the given range
+function drawSelectionCursor(cm, head, output) {
+ var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine)
+
+ var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"))
+ cursor.style.left = pos.left + "px"
+ cursor.style.top = pos.top + "px"
+ cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px"
+
+ if (pos.other) {
+ // Secondary cursor, shown when on a 'jump' in bi-directional text
+ var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"))
+ otherCursor.style.display = ""
+ otherCursor.style.left = pos.other.left + "px"
+ otherCursor.style.top = pos.other.top + "px"
+ otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px"
+ }
+}
+
+function cmpCoords(a, b) { return a.top - b.top || a.left - b.left }
+
+// Draws the given range as a highlighted selection
+function drawSelectionRange(cm, range, output) {
+ var display = cm.display, doc = cm.doc
+ var fragment = document.createDocumentFragment()
+ var padding = paddingH(cm.display), leftSide = padding.left
+ var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right
+
+ function add(left, top, width, bottom) {
+ if (top < 0) { top = 0 }
+ top = Math.round(top)
+ bottom = Math.round(bottom)
+ fragment.appendChild(elt("div", null, "CodeMirror-selected", ("position: absolute; left: " + left + "px;\n top: " + top + "px; width: " + (width == null ? rightSide - left : width) + "px;\n height: " + (bottom - top) + "px")))
+ }
+
+ function drawForLine(line, fromArg, toArg) {
+ var lineObj = getLine(doc, line)
+ var lineLen = lineObj.text.length
+ var start, end
+ function coords(ch, bias) {
+ return charCoords(cm, Pos(line, ch), "div", lineObj, bias)
+ }
+
+ var order = getOrder(lineObj, doc.direction)
+ iterateBidiSections(order, fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir, i) {
+ var fromPos = coords(from, dir == "ltr" ? "left" : "right")
+ var toPos = coords(to - 1, dir == "ltr" ? "right" : "left")
+ if (dir == "ltr") {
+ var fromLeft = fromArg == null && from == 0 ? leftSide : fromPos.left
+ var toRight = toArg == null && to == lineLen ? rightSide : toPos.right
+ if (toPos.top - fromPos.top <= 3) { // Single line
+ add(fromLeft, toPos.top, toRight - fromLeft, toPos.bottom)
+ } else { // Multiple lines
+ add(fromLeft, fromPos.top, null, fromPos.bottom)
+ if (fromPos.bottom < toPos.top) { add(leftSide, fromPos.bottom, null, toPos.top) }
+ add(leftSide, toPos.top, toPos.right, toPos.bottom)
+ }
+ } else if (from < to) { // RTL
+ var fromRight = fromArg == null && from == 0 ? rightSide : fromPos.right
+ var toLeft = toArg == null && to == lineLen ? leftSide : toPos.left
+ if (toPos.top - fromPos.top <= 3) { // Single line
+ add(toLeft, toPos.top, fromRight - toLeft, toPos.bottom)
+ } else { // Multiple lines
+ var topLeft = leftSide
+ if (i) {
+ var topEnd = wrappedLineExtentChar(cm, lineObj, null, from).end
+ // The coordinates returned for an RTL wrapped space tend to
+ // be complete bogus, so try to skip that here.
+ topLeft = coords(topEnd - (/\s/.test(lineObj.text.charAt(topEnd - 1)) ? 2 : 1), "left").left
+ }
+ add(topLeft, fromPos.top, fromRight - topLeft, fromPos.bottom)
+ if (fromPos.bottom < toPos.top) { add(leftSide, fromPos.bottom, null, toPos.top) }
+ var botWidth = null
+ if (i < order.length - 1 || true) {
+ var botStart = wrappedLineExtentChar(cm, lineObj, null, to).begin
+ botWidth = coords(botStart, "right").right - toLeft
+ }
+ add(toLeft, toPos.top, botWidth, toPos.bottom)
+ }
+ }
+
+ if (!start || cmpCoords(fromPos, start) < 0) { start = fromPos }
+ if (cmpCoords(toPos, start) < 0) { start = toPos }
+ if (!end || cmpCoords(fromPos, end) < 0) { end = fromPos }
+ if (cmpCoords(toPos, end) < 0) { end = toPos }
+ })
+ return {start: start, end: end}
+ }
+
+ var sFrom = range.from(), sTo = range.to()
+ if (sFrom.line == sTo.line) {
+ drawForLine(sFrom.line, sFrom.ch, sTo.ch)
+ } else {
+ var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line)
+ var singleVLine = visualLine(fromLine) == visualLine(toLine)
+ var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end
+ var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start
+ if (singleVLine) {
+ if (leftEnd.top < rightStart.top - 2) {
+ add(leftEnd.right, leftEnd.top, null, leftEnd.bottom)
+ add(leftSide, rightStart.top, rightStart.left, rightStart.bottom)
+ } else {
+ add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom)
+ }
+ }
+ if (leftEnd.bottom < rightStart.top)
+ { add(leftSide, leftEnd.bottom, null, rightStart.top) }
+ }
+
+ output.appendChild(fragment)
+}
+
+// Cursor-blinking
+function restartBlink(cm) {
+ if (!cm.state.focused) { return }
+ var display = cm.display
+ clearInterval(display.blinker)
+ var on = true
+ display.cursorDiv.style.visibility = ""
+ if (cm.options.cursorBlinkRate > 0)
+ { display.blinker = setInterval(function () { return display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden"; },
+ cm.options.cursorBlinkRate) }
+ else if (cm.options.cursorBlinkRate < 0)
+ { display.cursorDiv.style.visibility = "hidden" }
+}
+
+function ensureFocus(cm) {
+ if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm) }
+}
+
+function delayBlurEvent(cm) {
+ cm.state.delayingBlurEvent = true
+ setTimeout(function () { if (cm.state.delayingBlurEvent) {
+ cm.state.delayingBlurEvent = false
+ onBlur(cm)
+ } }, 100)
+}
+
+function onFocus(cm, e) {
+ if (cm.state.delayingBlurEvent) { cm.state.delayingBlurEvent = false }
+
+ if (cm.options.readOnly == "nocursor") { return }
+ if (!cm.state.focused) {
+ signal(cm, "focus", cm, e)
+ cm.state.focused = true
+ addClass(cm.display.wrapper, "CodeMirror-focused")
+ // This test prevents this from firing when a context
+ // menu is closed (since the input reset would kill the
+ // select-all detection hack)
+ if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
+ cm.display.input.reset()
+ if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20) } // Issue #1730
+ }
+ cm.display.input.receivedFocus()
+ }
+ restartBlink(cm)
+}
+function onBlur(cm, e) {
+ if (cm.state.delayingBlurEvent) { return }
+
+ if (cm.state.focused) {
+ signal(cm, "blur", cm, e)
+ cm.state.focused = false
+ rmClass(cm.display.wrapper, "CodeMirror-focused")
+ }
+ clearInterval(cm.display.blinker)
+ setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false } }, 150)
+}
+
+// Read the actual heights of the rendered lines, and update their
+// stored heights to match.
+function updateHeightsInViewport(cm) {
+ var display = cm.display
+ var prevBottom = display.lineDiv.offsetTop
+ for (var i = 0; i < display.view.length; i++) {
+ var cur = display.view[i], height = (void 0)
+ if (cur.hidden) { continue }
+ if (ie && ie_version < 8) {
+ var bot = cur.node.offsetTop + cur.node.offsetHeight
+ height = bot - prevBottom
+ prevBottom = bot
+ } else {
+ var box = cur.node.getBoundingClientRect()
+ height = box.bottom - box.top
+ }
+ var diff = cur.line.height - height
+ if (height < 2) { height = textHeight(display) }
+ if (diff > .005 || diff < -.005) {
+ updateLineHeight(cur.line, height)
+ updateWidgetHeight(cur.line)
+ if (cur.rest) { for (var j = 0; j < cur.rest.length; j++)
+ { updateWidgetHeight(cur.rest[j]) } }
+ }
+ }
+}
+
+// Read and store the height of line widgets associated with the
+// given line.
+function updateWidgetHeight(line) {
+ if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i)
+ { line.widgets[i].height = line.widgets[i].node.parentNode.offsetHeight } }
+}
+
+// Compute the lines that are visible in a given viewport (defaults
+// the the current scroll position). viewport may contain top,
+// height, and ensure (see op.scrollToPos) properties.
+function visibleLines(display, doc, viewport) {
+ var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop
+ top = Math.floor(top - paddingTop(display))
+ var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight
+
+ var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom)
+ // Ensure is a {from: {line, ch}, to: {line, ch}} object, and
+ // forces those lines into the viewport (if possible).
+ if (viewport && viewport.ensure) {
+ var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line
+ if (ensureFrom < from) {
+ from = ensureFrom
+ to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight)
+ } else if (Math.min(ensureTo, doc.lastLine()) >= to) {
+ from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight)
+ to = ensureTo
+ }
+ }
+ return {from: from, to: Math.max(to, from + 1)}
+}
+
+// Re-align line numbers and gutter marks to compensate for
+// horizontal scrolling.
+function alignHorizontally(cm) {
+ var display = cm.display, view = display.view
+ if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return }
+ var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft
+ var gutterW = display.gutters.offsetWidth, left = comp + "px"
+ for (var i = 0; i < view.length; i++) { if (!view[i].hidden) {
+ if (cm.options.fixedGutter) {
+ if (view[i].gutter)
+ { view[i].gutter.style.left = left }
+ if (view[i].gutterBackground)
+ { view[i].gutterBackground.style.left = left }
+ }
+ var align = view[i].alignable
+ if (align) { for (var j = 0; j < align.length; j++)
+ { align[j].style.left = left } }
+ } }
+ if (cm.options.fixedGutter)
+ { display.gutters.style.left = (comp + gutterW) + "px" }
+}
+
+// Used to ensure that the line number gutter is still the right
+// size for the current document size. Returns true when an update
+// is needed.
+function maybeUpdateLineNumberWidth(cm) {
+ if (!cm.options.lineNumbers) { return false }
+ var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display
+ if (last.length != display.lineNumChars) {
+ var test = display.measure.appendChild(elt("div", [elt("div", last)],
+ "CodeMirror-linenumber CodeMirror-gutter-elt"))
+ var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW
+ display.lineGutter.style.width = ""
+ display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1
+ display.lineNumWidth = display.lineNumInnerWidth + padding
+ display.lineNumChars = display.lineNumInnerWidth ? last.length : -1
+ display.lineGutter.style.width = display.lineNumWidth + "px"
+ updateGutterSpace(cm)
+ return true
+ }
+ return false
+}
+
+// SCROLLING THINGS INTO VIEW
+
+// If an editor sits on the top or bottom of the window, partially
+// scrolled out of view, this ensures that the cursor is visible.
+function maybeScrollWindow(cm, rect) {
+ if (signalDOMEvent(cm, "scrollCursorIntoView")) { return }
+
+ var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null
+ if (rect.top + box.top < 0) { doScroll = true }
+ else if (rect.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) { doScroll = false }
+ if (doScroll != null && !phantom) {
+ var scrollNode = elt("div", "\u200b", null, ("position: absolute;\n top: " + (rect.top - display.viewOffset - paddingTop(cm.display)) + "px;\n height: " + (rect.bottom - rect.top + scrollGap(cm) + display.barHeight) + "px;\n left: " + (rect.left) + "px; width: " + (Math.max(2, rect.right - rect.left)) + "px;"))
+ cm.display.lineSpace.appendChild(scrollNode)
+ scrollNode.scrollIntoView(doScroll)
+ cm.display.lineSpace.removeChild(scrollNode)
+ }
+}
+
+// Scroll a given position into view (immediately), verifying that
+// it actually became visible (as line heights are accurately
+// measured, the position of something may 'drift' during drawing).
+function scrollPosIntoView(cm, pos, end, margin) {
+ if (margin == null) { margin = 0 }
+ var rect
+ if (!cm.options.lineWrapping && pos == end) {
+ // Set pos and end to the cursor positions around the character pos sticks to
+ // If pos.sticky == "before", that is around pos.ch - 1, otherwise around pos.ch
+ // If pos == Pos(_, 0, "before"), pos and end are unchanged
+ pos = pos.ch ? Pos(pos.line, pos.sticky == "before" ? pos.ch - 1 : pos.ch, "after") : pos
+ end = pos.sticky == "before" ? Pos(pos.line, pos.ch + 1, "before") : pos
+ }
+ for (var limit = 0; limit < 5; limit++) {
+ var changed = false
+ var coords = cursorCoords(cm, pos)
+ var endCoords = !end || end == pos ? coords : cursorCoords(cm, end)
+ rect = {left: Math.min(coords.left, endCoords.left),
+ top: Math.min(coords.top, endCoords.top) - margin,
+ right: Math.max(coords.left, endCoords.left),
+ bottom: Math.max(coords.bottom, endCoords.bottom) + margin}
+ var scrollPos = calculateScrollPos(cm, rect)
+ var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft
+ if (scrollPos.scrollTop != null) {
+ updateScrollTop(cm, scrollPos.scrollTop)
+ if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true }
+ }
+ if (scrollPos.scrollLeft != null) {
+ setScrollLeft(cm, scrollPos.scrollLeft)
+ if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true }
+ }
+ if (!changed) { break }
+ }
+ return rect
+}
+
+// Scroll a given set of coordinates into view (immediately).
+function scrollIntoView(cm, rect) {
+ var scrollPos = calculateScrollPos(cm, rect)
+ if (scrollPos.scrollTop != null) { updateScrollTop(cm, scrollPos.scrollTop) }
+ if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft) }
+}
+
+// Calculate a new scroll position needed to scroll the given
+// rectangle into view. Returns an object with scrollTop and
+// scrollLeft properties. When these are undefined, the
+// vertical/horizontal position does not need to be adjusted.
+function calculateScrollPos(cm, rect) {
+ var display = cm.display, snapMargin = textHeight(cm.display)
+ if (rect.top < 0) { rect.top = 0 }
+ var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop
+ var screen = displayHeight(cm), result = {}
+ if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen }
+ var docBottom = cm.doc.height + paddingVert(display)
+ var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin
+ if (rect.top < screentop) {
+ result.scrollTop = atTop ? 0 : rect.top
+ } else if (rect.bottom > screentop + screen) {
+ var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen)
+ if (newTop != screentop) { result.scrollTop = newTop }
+ }
+
+ var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft
+ var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0)
+ var tooWide = rect.right - rect.left > screenw
+ if (tooWide) { rect.right = rect.left + screenw }
+ if (rect.left < 10)
+ { result.scrollLeft = 0 }
+ else if (rect.left < screenleft)
+ { result.scrollLeft = Math.max(0, rect.left - (tooWide ? 0 : 10)) }
+ else if (rect.right > screenw + screenleft - 3)
+ { result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw }
+ return result
+}
+
+// Store a relative adjustment to the scroll position in the current
+// operation (to be applied when the operation finishes).
+function addToScrollTop(cm, top) {
+ if (top == null) { return }
+ resolveScrollToPos(cm)
+ cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top
+}
+
+// Make sure that at the end of the operation the current cursor is
+// shown.
+function ensureCursorVisible(cm) {
+ resolveScrollToPos(cm)
+ var cur = cm.getCursor()
+ cm.curOp.scrollToPos = {from: cur, to: cur, margin: cm.options.cursorScrollMargin}
+}
+
+function scrollToCoords(cm, x, y) {
+ if (x != null || y != null) { resolveScrollToPos(cm) }
+ if (x != null) { cm.curOp.scrollLeft = x }
+ if (y != null) { cm.curOp.scrollTop = y }
+}
+
+function scrollToRange(cm, range) {
+ resolveScrollToPos(cm)
+ cm.curOp.scrollToPos = range
+}
+
+// When an operation has its scrollToPos property set, and another
+// scroll action is applied before the end of the operation, this
+// 'simulates' scrolling that position into view in a cheap way, so
+// that the effect of intermediate scroll commands is not ignored.
+function resolveScrollToPos(cm) {
+ var range = cm.curOp.scrollToPos
+ if (range) {
+ cm.curOp.scrollToPos = null
+ var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to)
+ scrollToCoordsRange(cm, from, to, range.margin)
+ }
+}
+
+function scrollToCoordsRange(cm, from, to, margin) {
+ var sPos = calculateScrollPos(cm, {
+ left: Math.min(from.left, to.left),
+ top: Math.min(from.top, to.top) - margin,
+ right: Math.max(from.right, to.right),
+ bottom: Math.max(from.bottom, to.bottom) + margin
+ })
+ scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop)
+}
+
+// Sync the scrollable area and scrollbars, ensure the viewport
+// covers the visible area.
+function updateScrollTop(cm, val) {
+ if (Math.abs(cm.doc.scrollTop - val) < 2) { return }
+ if (!gecko) { updateDisplaySimple(cm, {top: val}) }
+ setScrollTop(cm, val, true)
+ if (gecko) { updateDisplaySimple(cm) }
+ startWorker(cm, 100)
+}
+
+function setScrollTop(cm, val, forceScroll) {
+ val = Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val)
+ if (cm.display.scroller.scrollTop == val && !forceScroll) { return }
+ cm.doc.scrollTop = val
+ cm.display.scrollbars.setScrollTop(val)
+ if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val }
+}
+
+// Sync scroller and scrollbar, ensure the gutter elements are
+// aligned.
+function setScrollLeft(cm, val, isScroller, forceScroll) {
+ val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth)
+ if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return }
+ cm.doc.scrollLeft = val
+ alignHorizontally(cm)
+ if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val }
+ cm.display.scrollbars.setScrollLeft(val)
+}
+
+// SCROLLBARS
+
+// Prepare DOM reads needed to update the scrollbars. Done in one
+// shot to minimize update/measure roundtrips.
+function measureForScrollbars(cm) {
+ var d = cm.display, gutterW = d.gutters.offsetWidth
+ var docH = Math.round(cm.doc.height + paddingVert(cm.display))
+ return {
+ clientHeight: d.scroller.clientHeight,
+ viewHeight: d.wrapper.clientHeight,
+ scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
+ viewWidth: d.wrapper.clientWidth,
+ barLeft: cm.options.fixedGutter ? gutterW : 0,
+ docHeight: docH,
+ scrollHeight: docH + scrollGap(cm) + d.barHeight,
+ nativeBarWidth: d.nativeBarWidth,
+ gutterWidth: gutterW
+ }
+}
+
+var NativeScrollbars = function(place, scroll, cm) {
+ this.cm = cm
+ var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar")
+ var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar")
+ place(vert); place(horiz)
+
+ on(vert, "scroll", function () {
+ if (vert.clientHeight) { scroll(vert.scrollTop, "vertical") }
+ })
+ on(horiz, "scroll", function () {
+ if (horiz.clientWidth) { scroll(horiz.scrollLeft, "horizontal") }
+ })
+
+ this.checkedZeroWidth = false
+ // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
+ if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = "18px" }
+};
+
+NativeScrollbars.prototype.update = function (measure) {
+ var needsH = measure.scrollWidth > measure.clientWidth + 1
+ var needsV = measure.scrollHeight > measure.clientHeight + 1
+ var sWidth = measure.nativeBarWidth
+
+ if (needsV) {
+ this.vert.style.display = "block"
+ this.vert.style.bottom = needsH ? sWidth + "px" : "0"
+ var totalHeight = measure.viewHeight - (needsH ? sWidth : 0)
+ // A bug in IE8 can cause this value to be negative, so guard it.
+ this.vert.firstChild.style.height =
+ Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px"
+ } else {
+ this.vert.style.display = ""
+ this.vert.firstChild.style.height = "0"
+ }
+
+ if (needsH) {
+ this.horiz.style.display = "block"
+ this.horiz.style.right = needsV ? sWidth + "px" : "0"
+ this.horiz.style.left = measure.barLeft + "px"
+ var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0)
+ this.horiz.firstChild.style.width =
+ Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + "px"
+ } else {
+ this.horiz.style.display = ""
+ this.horiz.firstChild.style.width = "0"
+ }
+
+ if (!this.checkedZeroWidth && measure.clientHeight > 0) {
+ if (sWidth == 0) { this.zeroWidthHack() }
+ this.checkedZeroWidth = true
+ }
+
+ return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}
+};
+
+NativeScrollbars.prototype.setScrollLeft = function (pos) {
+ if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos }
+ if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz, "horiz") }
+};
+
+NativeScrollbars.prototype.setScrollTop = function (pos) {
+ if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos }
+ if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert, "vert") }
+};
+
+NativeScrollbars.prototype.zeroWidthHack = function () {
+ var w = mac && !mac_geMountainLion ? "12px" : "18px"
+ this.horiz.style.height = this.vert.style.width = w
+ this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none"
+ this.disableHoriz = new Delayed
+ this.disableVert = new Delayed
+};
+
+NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay, type) {
+ bar.style.pointerEvents = "auto"
+ function maybeDisable() {
+ // To find out whether the scrollbar is still visible, we
+ // check whether the element under the pixel in the bottom
+ // right corner of the scrollbar box is the scrollbar box
+ // itself (when the bar is still visible) or its filler child
+ // (when the bar is hidden). If it is still visible, we keep
+ // it enabled, if it's hidden, we disable pointer events.
+ var box = bar.getBoundingClientRect()
+ var elt = type == "vert" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2)
+ : document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1)
+ if (elt != bar) { bar.style.pointerEvents = "none" }
+ else { delay.set(1000, maybeDisable) }
+ }
+ delay.set(1000, maybeDisable)
+};
+
+NativeScrollbars.prototype.clear = function () {
+ var parent = this.horiz.parentNode
+ parent.removeChild(this.horiz)
+ parent.removeChild(this.vert)
+};
+
+var NullScrollbars = function () {};
+
+NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} };
+NullScrollbars.prototype.setScrollLeft = function () {};
+NullScrollbars.prototype.setScrollTop = function () {};
+NullScrollbars.prototype.clear = function () {};
+
+function updateScrollbars(cm, measure) {
+ if (!measure) { measure = measureForScrollbars(cm) }
+ var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight
+ updateScrollbarsInner(cm, measure)
+ for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {
+ if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
+ { updateHeightsInViewport(cm) }
+ updateScrollbarsInner(cm, measureForScrollbars(cm))
+ startWidth = cm.display.barWidth; startHeight = cm.display.barHeight
+ }
+}
+
+// Re-synchronize the fake scrollbars with the actual size of the
+// content.
+function updateScrollbarsInner(cm, measure) {
+ var d = cm.display
+ var sizes = d.scrollbars.update(measure)
+
+ d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px"
+ d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px"
+ d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent"
+
+ if (sizes.right && sizes.bottom) {
+ d.scrollbarFiller.style.display = "block"
+ d.scrollbarFiller.style.height = sizes.bottom + "px"
+ d.scrollbarFiller.style.width = sizes.right + "px"
+ } else { d.scrollbarFiller.style.display = "" }
+ if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
+ d.gutterFiller.style.display = "block"
+ d.gutterFiller.style.height = sizes.bottom + "px"
+ d.gutterFiller.style.width = measure.gutterWidth + "px"
+ } else { d.gutterFiller.style.display = "" }
+}
+
+var scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars}
+
+function initScrollbars(cm) {
+ if (cm.display.scrollbars) {
+ cm.display.scrollbars.clear()
+ if (cm.display.scrollbars.addClass)
+ { rmClass(cm.display.wrapper, cm.display.scrollbars.addClass) }
+ }
+
+ cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) {
+ cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller)
+ // Prevent clicks in the scrollbars from killing focus
+ on(node, "mousedown", function () {
+ if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0) }
+ })
+ node.setAttribute("cm-not-content", "true")
+ }, function (pos, axis) {
+ if (axis == "horizontal") { setScrollLeft(cm, pos) }
+ else { updateScrollTop(cm, pos) }
+ }, cm)
+ if (cm.display.scrollbars.addClass)
+ { addClass(cm.display.wrapper, cm.display.scrollbars.addClass) }
+}
+
+// Operations are used to wrap a series of changes to the editor
+// state in such a way that each change won't have to update the
+// cursor and display (which would be awkward, slow, and
+// error-prone). Instead, display updates are batched and then all
+// combined and executed at once.
+
+var nextOpId = 0
+// Start a new operation.
+function startOperation(cm) {
+ cm.curOp = {
+ cm: cm,
+ viewChanged: false, // Flag that indicates that lines might need to be redrawn
+ startHeight: cm.doc.height, // Used to detect need to update scrollbar
+ forceUpdate: false, // Used to force a redraw
+ updateInput: null, // Whether to reset the input textarea
+ typing: false, // Whether this reset should be careful to leave existing text (for compositing)
+ changeObjs: null, // Accumulated changes, for firing change events
+ cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
+ cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
+ selectionChanged: false, // Whether the selection needs to be redrawn
+ updateMaxLine: false, // Set when the widest line needs to be determined anew
+ scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
+ scrollToPos: null, // Used to scroll to a specific position
+ focus: false,
+ id: ++nextOpId // Unique ID
+ }
+ pushOperation(cm.curOp)
+}
+
+// Finish an operation, updating the display and signalling delayed events
+function endOperation(cm) {
+ var op = cm.curOp
+ finishOperation(op, function (group) {
+ for (var i = 0; i < group.ops.length; i++)
+ { group.ops[i].cm.curOp = null }
+ endOperations(group)
+ })
+}
+
+// The DOM updates done when an operation finishes are batched so
+// that the minimum number of relayouts are required.
+function endOperations(group) {
+ var ops = group.ops
+ for (var i = 0; i < ops.length; i++) // Read DOM
+ { endOperation_R1(ops[i]) }
+ for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe)
+ { endOperation_W1(ops[i$1]) }
+ for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM
+ { endOperation_R2(ops[i$2]) }
+ for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe)
+ { endOperation_W2(ops[i$3]) }
+ for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM
+ { endOperation_finish(ops[i$4]) }
+}
+
+function endOperation_R1(op) {
+ var cm = op.cm, display = cm.display
+ maybeClipScrollbars(cm)
+ if (op.updateMaxLine) { findMaxLine(cm) }
+
+ op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
+ op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
+ op.scrollToPos.to.line >= display.viewTo) ||
+ display.maxLineChanged && cm.options.lineWrapping
+ op.update = op.mustUpdate &&
+ new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate)
+}
+
+function endOperation_W1(op) {
+ op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update)
+}
+
+function endOperation_R2(op) {
+ var cm = op.cm, display = cm.display
+ if (op.updatedDisplay) { updateHeightsInViewport(cm) }
+
+ op.barMeasure = measureForScrollbars(cm)
+
+ // If the max line changed since it was last measured, measure it,
+ // and ensure the document's width matches it.
+ // updateDisplay_W2 will use these properties to do the actual resizing
+ if (display.maxLineChanged && !cm.options.lineWrapping) {
+ op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3
+ cm.display.sizerWidth = op.adjustWidthTo
+ op.barMeasure.scrollWidth =
+ Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth)
+ op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm))
+ }
+
+ if (op.updatedDisplay || op.selectionChanged)
+ { op.preparedSelection = display.input.prepareSelection() }
+}
+
+function endOperation_W2(op) {
+ var cm = op.cm
+
+ if (op.adjustWidthTo != null) {
+ cm.display.sizer.style.minWidth = op.adjustWidthTo + "px"
+ if (op.maxScrollLeft < cm.doc.scrollLeft)
+ { setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true) }
+ cm.display.maxLineChanged = false
+ }
+
+ var takeFocus = op.focus && op.focus == activeElt()
+ if (op.preparedSelection)
+ { cm.display.input.showSelection(op.preparedSelection, takeFocus) }
+ if (op.updatedDisplay || op.startHeight != cm.doc.height)
+ { updateScrollbars(cm, op.barMeasure) }
+ if (op.updatedDisplay)
+ { setDocumentHeight(cm, op.barMeasure) }
+
+ if (op.selectionChanged) { restartBlink(cm) }
+
+ if (cm.state.focused && op.updateInput)
+ { cm.display.input.reset(op.typing) }
+ if (takeFocus) { ensureFocus(op.cm) }
+}
+
+function endOperation_finish(op) {
+ var cm = op.cm, display = cm.display, doc = cm.doc
+
+ if (op.updatedDisplay) { postUpdateDisplay(cm, op.update) }
+
+ // Abort mouse wheel delta measurement, when scrolling explicitly
+ if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
+ { display.wheelStartX = display.wheelStartY = null }
+
+ // Propagate the scroll position to the actual DOM scroller
+ if (op.scrollTop != null) { setScrollTop(cm, op.scrollTop, op.forceScroll) }
+
+ if (op.scrollLeft != null) { setScrollLeft(cm, op.scrollLeft, true, true) }
+ // If we need to scroll a specific position into view, do so.
+ if (op.scrollToPos) {
+ var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
+ clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin)
+ maybeScrollWindow(cm, rect)
+ }
+
+ // Fire events for markers that are hidden/unidden by editing or
+ // undoing
+ var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers
+ if (hidden) { for (var i = 0; i < hidden.length; ++i)
+ { if (!hidden[i].lines.length) { signal(hidden[i], "hide") } } }
+ if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1)
+ { if (unhidden[i$1].lines.length) { signal(unhidden[i$1], "unhide") } } }
+
+ if (display.wrapper.offsetHeight)
+ { doc.scrollTop = cm.display.scroller.scrollTop }
+
+ // Fire change events, and delayed event handlers
+ if (op.changeObjs)
+ { signal(cm, "changes", cm, op.changeObjs) }
+ if (op.update)
+ { op.update.finish() }
+}
+
+// Run the given function in an operation
+function runInOp(cm, f) {
+ if (cm.curOp) { return f() }
+ startOperation(cm)
+ try { return f() }
+ finally { endOperation(cm) }
+}
+// Wraps a function in an operation. Returns the wrapped function.
+function operation(cm, f) {
+ return function() {
+ if (cm.curOp) { return f.apply(cm, arguments) }
+ startOperation(cm)
+ try { return f.apply(cm, arguments) }
+ finally { endOperation(cm) }
+ }
+}
+// Used to add methods to editor and doc instances, wrapping them in
+// operations.
+function methodOp(f) {
+ return function() {
+ if (this.curOp) { return f.apply(this, arguments) }
+ startOperation(this)
+ try { return f.apply(this, arguments) }
+ finally { endOperation(this) }
+ }
+}
+function docMethodOp(f) {
+ return function() {
+ var cm = this.cm
+ if (!cm || cm.curOp) { return f.apply(this, arguments) }
+ startOperation(cm)
+ try { return f.apply(this, arguments) }
+ finally { endOperation(cm) }
+ }
+}
+
+// Updates the display.view data structure for a given change to the
+// document. From and to are in pre-change coordinates. Lendiff is
+// the amount of lines added or subtracted by the change. This is
+// used for changes that span multiple lines, or change the way
+// lines are divided into visual lines. regLineChange (below)
+// registers single-line changes.
+function regChange(cm, from, to, lendiff) {
+ if (from == null) { from = cm.doc.first }
+ if (to == null) { to = cm.doc.first + cm.doc.size }
+ if (!lendiff) { lendiff = 0 }
+
+ var display = cm.display
+ if (lendiff && to < display.viewTo &&
+ (display.updateLineNumbers == null || display.updateLineNumbers > from))
+ { display.updateLineNumbers = from }
+
+ cm.curOp.viewChanged = true
+
+ if (from >= display.viewTo) { // Change after
+ if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
+ { resetView(cm) }
+ } else if (to <= display.viewFrom) { // Change before
+ if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
+ resetView(cm)
+ } else {
+ display.viewFrom += lendiff
+ display.viewTo += lendiff
+ }
+ } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
+ resetView(cm)
+ } else if (from <= display.viewFrom) { // Top overlap
+ var cut = viewCuttingPoint(cm, to, to + lendiff, 1)
+ if (cut) {
+ display.view = display.view.slice(cut.index)
+ display.viewFrom = cut.lineN
+ display.viewTo += lendiff
+ } else {
+ resetView(cm)
+ }
+ } else if (to >= display.viewTo) { // Bottom overlap
+ var cut$1 = viewCuttingPoint(cm, from, from, -1)
+ if (cut$1) {
+ display.view = display.view.slice(0, cut$1.index)
+ display.viewTo = cut$1.lineN
+ } else {
+ resetView(cm)
+ }
+ } else { // Gap in the middle
+ var cutTop = viewCuttingPoint(cm, from, from, -1)
+ var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1)
+ if (cutTop && cutBot) {
+ display.view = display.view.slice(0, cutTop.index)
+ .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
+ .concat(display.view.slice(cutBot.index))
+ display.viewTo += lendiff
+ } else {
+ resetView(cm)
+ }
+ }
+
+ var ext = display.externalMeasured
+ if (ext) {
+ if (to < ext.lineN)
+ { ext.lineN += lendiff }
+ else if (from < ext.lineN + ext.size)
+ { display.externalMeasured = null }
+ }
+}
+
+// Register a change to a single line. Type must be one of "text",
+// "gutter", "class", "widget"
+function regLineChange(cm, line, type) {
+ cm.curOp.viewChanged = true
+ var display = cm.display, ext = cm.display.externalMeasured
+ if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
+ { display.externalMeasured = null }
+
+ if (line < display.viewFrom || line >= display.viewTo) { return }
+ var lineView = display.view[findViewIndex(cm, line)]
+ if (lineView.node == null) { return }
+ var arr = lineView.changes || (lineView.changes = [])
+ if (indexOf(arr, type) == -1) { arr.push(type) }
+}
+
+// Clear the view.
+function resetView(cm) {
+ cm.display.viewFrom = cm.display.viewTo = cm.doc.first
+ cm.display.view = []
+ cm.display.viewOffset = 0
+}
+
+function viewCuttingPoint(cm, oldN, newN, dir) {
+ var index = findViewIndex(cm, oldN), diff, view = cm.display.view
+ if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
+ { return {index: index, lineN: newN} }
+ var n = cm.display.viewFrom
+ for (var i = 0; i < index; i++)
+ { n += view[i].size }
+ if (n != oldN) {
+ if (dir > 0) {
+ if (index == view.length - 1) { return null }
+ diff = (n + view[index].size) - oldN
+ index++
+ } else {
+ diff = n - oldN
+ }
+ oldN += diff; newN += diff
+ }
+ while (visualLineNo(cm.doc, newN) != newN) {
+ if (index == (dir < 0 ? 0 : view.length - 1)) { return null }
+ newN += dir * view[index - (dir < 0 ? 1 : 0)].size
+ index += dir
+ }
+ return {index: index, lineN: newN}
+}
+
+// Force the view to cover a given range, adding empty view element
+// or clipping off existing ones as needed.
+function adjustView(cm, from, to) {
+ var display = cm.display, view = display.view
+ if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
+ display.view = buildViewArray(cm, from, to)
+ display.viewFrom = from
+ } else {
+ if (display.viewFrom > from)
+ { display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view) }
+ else if (display.viewFrom < from)
+ { display.view = display.view.slice(findViewIndex(cm, from)) }
+ display.viewFrom = from
+ if (display.viewTo < to)
+ { display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)) }
+ else if (display.viewTo > to)
+ { display.view = display.view.slice(0, findViewIndex(cm, to)) }
+ }
+ display.viewTo = to
+}
+
+// Count the number of lines in the view whose DOM representation is
+// out of date (or nonexistent).
+function countDirtyView(cm) {
+ var view = cm.display.view, dirty = 0
+ for (var i = 0; i < view.length; i++) {
+ var lineView = view[i]
+ if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty }
+ }
+ return dirty
+}
+
+// HIGHLIGHT WORKER
+
+function startWorker(cm, time) {
+ if (cm.doc.highlightFrontier < cm.display.viewTo)
+ { cm.state.highlight.set(time, bind(highlightWorker, cm)) }
+}
+
+function highlightWorker(cm) {
+ var doc = cm.doc
+ if (doc.highlightFrontier >= cm.display.viewTo) { return }
+ var end = +new Date + cm.options.workTime
+ var context = getContextBefore(cm, doc.highlightFrontier)
+ var changedLines = []
+
+ doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) {
+ if (context.line >= cm.display.viewFrom) { // Visible
+ var oldStyles = line.styles
+ var resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null
+ var highlighted = highlightLine(cm, line, context, true)
+ if (resetState) { context.state = resetState }
+ line.styles = highlighted.styles
+ var oldCls = line.styleClasses, newCls = highlighted.classes
+ if (newCls) { line.styleClasses = newCls }
+ else if (oldCls) { line.styleClasses = null }
+ var ischange = !oldStyles || oldStyles.length != line.styles.length ||
+ oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass)
+ for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i] }
+ if (ischange) { changedLines.push(context.line) }
+ line.stateAfter = context.save()
+ context.nextLine()
+ } else {
+ if (line.text.length <= cm.options.maxHighlightLength)
+ { processLine(cm, line.text, context) }
+ line.stateAfter = context.line % 5 == 0 ? context.save() : null
+ context.nextLine()
+ }
+ if (+new Date > end) {
+ startWorker(cm, cm.options.workDelay)
+ return true
+ }
+ })
+ doc.highlightFrontier = context.line
+ doc.modeFrontier = Math.max(doc.modeFrontier, context.line)
+ if (changedLines.length) { runInOp(cm, function () {
+ for (var i = 0; i < changedLines.length; i++)
+ { regLineChange(cm, changedLines[i], "text") }
+ }) }
+}
+
+// DISPLAY DRAWING
+
+var DisplayUpdate = function(cm, viewport, force) {
+ var display = cm.display
+
+ this.viewport = viewport
+ // Store some values that we'll need later (but don't want to force a relayout for)
+ this.visible = visibleLines(display, cm.doc, viewport)
+ this.editorIsHidden = !display.wrapper.offsetWidth
+ this.wrapperHeight = display.wrapper.clientHeight
+ this.wrapperWidth = display.wrapper.clientWidth
+ this.oldDisplayWidth = displayWidth(cm)
+ this.force = force
+ this.dims = getDimensions(cm)
+ this.events = []
+};
+
+DisplayUpdate.prototype.signal = function (emitter, type) {
+ if (hasHandler(emitter, type))
+ { this.events.push(arguments) }
+};
+DisplayUpdate.prototype.finish = function () {
+ var this$1 = this;
+
+ for (var i = 0; i < this.events.length; i++)
+ { signal.apply(null, this$1.events[i]) }
+};
+
+function maybeClipScrollbars(cm) {
+ var display = cm.display
+ if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
+ display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth
+ display.heightForcer.style.height = scrollGap(cm) + "px"
+ display.sizer.style.marginBottom = -display.nativeBarWidth + "px"
+ display.sizer.style.borderRightWidth = scrollGap(cm) + "px"
+ display.scrollbarsClipped = true
+ }
+}
+
+function selectionSnapshot(cm) {
+ if (cm.hasFocus()) { return null }
+ var active = activeElt()
+ if (!active || !contains(cm.display.lineDiv, active)) { return null }
+ var result = {activeElt: active}
+ if (window.getSelection) {
+ var sel = window.getSelection()
+ if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) {
+ result.anchorNode = sel.anchorNode
+ result.anchorOffset = sel.anchorOffset
+ result.focusNode = sel.focusNode
+ result.focusOffset = sel.focusOffset
+ }
+ }
+ return result
+}
+
+function restoreSelection(snapshot) {
+ if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt()) { return }
+ snapshot.activeElt.focus()
+ if (snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) {
+ var sel = window.getSelection(), range = document.createRange()
+ range.setEnd(snapshot.anchorNode, snapshot.anchorOffset)
+ range.collapse(false)
+ sel.removeAllRanges()
+ sel.addRange(range)
+ sel.extend(snapshot.focusNode, snapshot.focusOffset)
+ }
+}
+
+// Does the actual updating of the line display. Bails out
+// (returning false) when there is nothing to be done and forced is
+// false.
+function updateDisplayIfNeeded(cm, update) {
+ var display = cm.display, doc = cm.doc
+
+ if (update.editorIsHidden) {
+ resetView(cm)
+ return false
+ }
+
+ // Bail out if the visible area is already rendered and nothing changed.
+ if (!update.force &&
+ update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
+ (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
+ display.renderedView == display.view && countDirtyView(cm) == 0)
+ { return false }
+
+ if (maybeUpdateLineNumberWidth(cm)) {
+ resetView(cm)
+ update.dims = getDimensions(cm)
+ }
+
+ // Compute a suitable new viewport (from & to)
+ var end = doc.first + doc.size
+ var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first)
+ var to = Math.min(end, update.visible.to + cm.options.viewportMargin)
+ if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom) }
+ if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo) }
+ if (sawCollapsedSpans) {
+ from = visualLineNo(cm.doc, from)
+ to = visualLineEndNo(cm.doc, to)
+ }
+
+ var different = from != display.viewFrom || to != display.viewTo ||
+ display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth
+ adjustView(cm, from, to)
+
+ display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom))
+ // Position the mover div to align with the current scroll position
+ cm.display.mover.style.top = display.viewOffset + "px"
+
+ var toUpdate = countDirtyView(cm)
+ if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
+ (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
+ { return false }
+
+ // For big changes, we hide the enclosing element during the
+ // update, since that speeds up the operations on most browsers.
+ var selSnapshot = selectionSnapshot(cm)
+ if (toUpdate > 4) { display.lineDiv.style.display = "none" }
+ patchDisplay(cm, display.updateLineNumbers, update.dims)
+ if (toUpdate > 4) { display.lineDiv.style.display = "" }
+ display.renderedView = display.view
+ // There might have been a widget with a focused element that got
+ // hidden or updated, if so re-focus it.
+ restoreSelection(selSnapshot)
+
+ // Prevent selection and cursors from interfering with the scroll
+ // width and height.
+ removeChildren(display.cursorDiv)
+ removeChildren(display.selectionDiv)
+ display.gutters.style.height = display.sizer.style.minHeight = 0
+
+ if (different) {
+ display.lastWrapHeight = update.wrapperHeight
+ display.lastWrapWidth = update.wrapperWidth
+ startWorker(cm, 400)
+ }
+
+ display.updateLineNumbers = null
+
+ return true
+}
+
+function postUpdateDisplay(cm, update) {
+ var viewport = update.viewport
+
+ for (var first = true;; first = false) {
+ if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
+ // Clip forced viewport to actual scrollable area.
+ if (viewport && viewport.top != null)
+ { viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)} }
+ // Updated line heights might result in the drawn area not
+ // actually covering the viewport. Keep looping until it does.
+ update.visible = visibleLines(cm.display, cm.doc, viewport)
+ if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
+ { break }
+ }
+ if (!updateDisplayIfNeeded(cm, update)) { break }
+ updateHeightsInViewport(cm)
+ var barMeasure = measureForScrollbars(cm)
+ updateSelection(cm)
+ updateScrollbars(cm, barMeasure)
+ setDocumentHeight(cm, barMeasure)
+ update.force = false
+ }
+
+ update.signal(cm, "update", cm)
+ if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
+ update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo)
+ cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo
+ }
+}
+
+function updateDisplaySimple(cm, viewport) {
+ var update = new DisplayUpdate(cm, viewport)
+ if (updateDisplayIfNeeded(cm, update)) {
+ updateHeightsInViewport(cm)
+ postUpdateDisplay(cm, update)
+ var barMeasure = measureForScrollbars(cm)
+ updateSelection(cm)
+ updateScrollbars(cm, barMeasure)
+ setDocumentHeight(cm, barMeasure)
+ update.finish()
+ }
+}
+
+// Sync the actual display DOM structure with display.view, removing
+// nodes for lines that are no longer in view, and creating the ones
+// that are not there yet, and updating the ones that are out of
+// date.
+function patchDisplay(cm, updateNumbersFrom, dims) {
+ var display = cm.display, lineNumbers = cm.options.lineNumbers
+ var container = display.lineDiv, cur = container.firstChild
+
+ function rm(node) {
+ var next = node.nextSibling
+ // Works around a throw-scroll bug in OS X Webkit
+ if (webkit && mac && cm.display.currentWheelTarget == node)
+ { node.style.display = "none" }
+ else
+ { node.parentNode.removeChild(node) }
+ return next
+ }
+
+ var view = display.view, lineN = display.viewFrom
+ // Loop over the elements in the view, syncing cur (the DOM nodes
+ // in display.lineDiv) with the view as we go.
+ for (var i = 0; i < view.length; i++) {
+ var lineView = view[i]
+ if (lineView.hidden) {
+ } else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
+ var node = buildLineElement(cm, lineView, lineN, dims)
+ container.insertBefore(node, cur)
+ } else { // Already drawn
+ while (cur != lineView.node) { cur = rm(cur) }
+ var updateNumber = lineNumbers && updateNumbersFrom != null &&
+ updateNumbersFrom <= lineN && lineView.lineNumber
+ if (lineView.changes) {
+ if (indexOf(lineView.changes, "gutter") > -1) { updateNumber = false }
+ updateLineForChanges(cm, lineView, lineN, dims)
+ }
+ if (updateNumber) {
+ removeChildren(lineView.lineNumber)
+ lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)))
+ }
+ cur = lineView.node.nextSibling
+ }
+ lineN += lineView.size
+ }
+ while (cur) { cur = rm(cur) }
+}
+
+function updateGutterSpace(cm) {
+ var width = cm.display.gutters.offsetWidth
+ cm.display.sizer.style.marginLeft = width + "px"
+}
+
+function setDocumentHeight(cm, measure) {
+ cm.display.sizer.style.minHeight = measure.docHeight + "px"
+ cm.display.heightForcer.style.top = measure.docHeight + "px"
+ cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px"
+}
+
+// Rebuild the gutter elements, ensure the margin to the left of the
+// code matches their width.
+function updateGutters(cm) {
+ var gutters = cm.display.gutters, specs = cm.options.gutters
+ removeChildren(gutters)
+ var i = 0
+ for (; i < specs.length; ++i) {
+ var gutterClass = specs[i]
+ var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass))
+ if (gutterClass == "CodeMirror-linenumbers") {
+ cm.display.lineGutter = gElt
+ gElt.style.width = (cm.display.lineNumWidth || 1) + "px"
+ }
+ }
+ gutters.style.display = i ? "" : "none"
+ updateGutterSpace(cm)
+}
+
+// Make sure the gutters options contains the element
+// "CodeMirror-linenumbers" when the lineNumbers option is true.
+function setGuttersForLineNumbers(options) {
+ var found = indexOf(options.gutters, "CodeMirror-linenumbers")
+ if (found == -1 && options.lineNumbers) {
+ options.gutters = options.gutters.concat(["CodeMirror-linenumbers"])
+ } else if (found > -1 && !options.lineNumbers) {
+ options.gutters = options.gutters.slice(0)
+ options.gutters.splice(found, 1)
+ }
+}
+
+var wheelSamples = 0;
+var wheelPixelsPerUnit = null;
+// Fill in a browser-detected starting value on browsers where we
+// know one. These don't have to be accurate -- the result of them
+// being wrong would just be a slight flicker on the first wheel
+// scroll (if it is large enough).
+if (ie) { wheelPixelsPerUnit = -.53 }
+else if (gecko) { wheelPixelsPerUnit = 15 }
+else if (chrome) { wheelPixelsPerUnit = -.7 }
+else if (safari) { wheelPixelsPerUnit = -1/3 }
+
+function wheelEventDelta(e) {
+ var dx = e.wheelDeltaX, dy = e.wheelDeltaY
+ if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail }
+ if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail }
+ else if (dy == null) { dy = e.wheelDelta }
+ return {x: dx, y: dy}
+}
+function wheelEventPixels(e) {
+ var delta = wheelEventDelta(e)
+ delta.x *= wheelPixelsPerUnit
+ delta.y *= wheelPixelsPerUnit
+ return delta
+}
+
+function onScrollWheel(cm, e) {
+ var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y
+
+ var display = cm.display, scroll = display.scroller
+ // Quit if there's nothing to scroll here
+ var canScrollX = scroll.scrollWidth > scroll.clientWidth
+ var canScrollY = scroll.scrollHeight > scroll.clientHeight
+ if (!(dx && canScrollX || dy && canScrollY)) { return }
+
+ // Webkit browsers on OS X abort momentum scrolls when the target
+ // of the scroll event is removed from the scrollable element.
+ // This hack (see related code in patchDisplay) makes sure the
+ // element is kept around.
+ if (dy && mac && webkit) {
+ outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
+ for (var i = 0; i < view.length; i++) {
+ if (view[i].node == cur) {
+ cm.display.currentWheelTarget = cur
+ break outer
+ }
+ }
+ }
+ }
+
+ // On some browsers, horizontal scrolling will cause redraws to
+ // happen before the gutter has been realigned, causing it to
+ // wriggle around in a most unseemly way. When we have an
+ // estimated pixels/delta value, we just handle horizontal
+ // scrolling entirely here. It'll be slightly off from native, but
+ // better than glitching out.
+ if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {
+ if (dy && canScrollY)
+ { updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * wheelPixelsPerUnit)) }
+ setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * wheelPixelsPerUnit))
+ // Only prevent default scrolling if vertical scrolling is
+ // actually possible. Otherwise, it causes vertical scroll
+ // jitter on OSX trackpads when deltaX is small and deltaY
+ // is large (issue #3579)
+ if (!dy || (dy && canScrollY))
+ { e_preventDefault(e) }
+ display.wheelStartX = null // Abort measurement, if in progress
+ return
+ }
+
+ // 'Project' the visible viewport to cover the area that is being
+ // scrolled into view (if we know enough to estimate it).
+ if (dy && wheelPixelsPerUnit != null) {
+ var pixels = dy * wheelPixelsPerUnit
+ var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight
+ if (pixels < 0) { top = Math.max(0, top + pixels - 50) }
+ else { bot = Math.min(cm.doc.height, bot + pixels + 50) }
+ updateDisplaySimple(cm, {top: top, bottom: bot})
+ }
+
+ if (wheelSamples < 20) {
+ if (display.wheelStartX == null) {
+ display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop
+ display.wheelDX = dx; display.wheelDY = dy
+ setTimeout(function () {
+ if (display.wheelStartX == null) { return }
+ var movedX = scroll.scrollLeft - display.wheelStartX
+ var movedY = scroll.scrollTop - display.wheelStartY
+ var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
+ (movedX && display.wheelDX && movedX / display.wheelDX)
+ display.wheelStartX = display.wheelStartY = null
+ if (!sample) { return }
+ wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1)
+ ++wheelSamples
+ }, 200)
+ } else {
+ display.wheelDX += dx; display.wheelDY += dy
+ }
+ }
+}
+
+// Selection objects are immutable. A new one is created every time
+// the selection changes. A selection is one or more non-overlapping
+// (and non-touching) ranges, sorted, and an integer that indicates
+// which one is the primary selection (the one that's scrolled into
+// view, that getCursor returns, etc).
+var Selection = function(ranges, primIndex) {
+ this.ranges = ranges
+ this.primIndex = primIndex
+};
+
+Selection.prototype.primary = function () { return this.ranges[this.primIndex] };
+
+Selection.prototype.equals = function (other) {
+ var this$1 = this;
+
+ if (other == this) { return true }
+ if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false }
+ for (var i = 0; i < this.ranges.length; i++) {
+ var here = this$1.ranges[i], there = other.ranges[i]
+ if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false }
+ }
+ return true
+};
+
+Selection.prototype.deepCopy = function () {
+ var this$1 = this;
+
+ var out = []
+ for (var i = 0; i < this.ranges.length; i++)
+ { out[i] = new Range(copyPos(this$1.ranges[i].anchor), copyPos(this$1.ranges[i].head)) }
+ return new Selection(out, this.primIndex)
+};
+
+Selection.prototype.somethingSelected = function () {
+ var this$1 = this;
+
+ for (var i = 0; i < this.ranges.length; i++)
+ { if (!this$1.ranges[i].empty()) { return true } }
+ return false
+};
+
+Selection.prototype.contains = function (pos, end) {
+ var this$1 = this;
+
+ if (!end) { end = pos }
+ for (var i = 0; i < this.ranges.length; i++) {
+ var range = this$1.ranges[i]
+ if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
+ { return i }
+ }
+ return -1
+};
+
+var Range = function(anchor, head) {
+ this.anchor = anchor; this.head = head
+};
+
+Range.prototype.from = function () { return minPos(this.anchor, this.head) };
+Range.prototype.to = function () { return maxPos(this.anchor, this.head) };
+Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch };
+
+// Take an unsorted, potentially overlapping set of ranges, and
+// build a selection out of it. 'Consumes' ranges array (modifying
+// it).
+function normalizeSelection(ranges, primIndex) {
+ var prim = ranges[primIndex]
+ ranges.sort(function (a, b) { return cmp(a.from(), b.from()); })
+ primIndex = indexOf(ranges, prim)
+ for (var i = 1; i < ranges.length; i++) {
+ var cur = ranges[i], prev = ranges[i - 1]
+ if (cmp(prev.to(), cur.from()) >= 0) {
+ var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to())
+ var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head
+ if (i <= primIndex) { --primIndex }
+ ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to))
+ }
+ }
+ return new Selection(ranges, primIndex)
+}
+
+function simpleSelection(anchor, head) {
+ return new Selection([new Range(anchor, head || anchor)], 0)
+}
+
+// Compute the position of the end of a change (its 'to' property
+// refers to the pre-change end).
+function changeEnd(change) {
+ if (!change.text) { return change.to }
+ return Pos(change.from.line + change.text.length - 1,
+ lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0))
+}
+
+// Adjust a position to refer to the post-change position of the
+// same text, or the end of the change if the change covers it.
+function adjustForChange(pos, change) {
+ if (cmp(pos, change.from) < 0) { return pos }
+ if (cmp(pos, change.to) <= 0) { return changeEnd(change) }
+
+ var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch
+ if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch }
+ return Pos(line, ch)
+}
+
+function computeSelAfterChange(doc, change) {
+ var out = []
+ for (var i = 0; i < doc.sel.ranges.length; i++) {
+ var range = doc.sel.ranges[i]
+ out.push(new Range(adjustForChange(range.anchor, change),
+ adjustForChange(range.head, change)))
+ }
+ return normalizeSelection(out, doc.sel.primIndex)
+}
+
+function offsetPos(pos, old, nw) {
+ if (pos.line == old.line)
+ { return Pos(nw.line, pos.ch - old.ch + nw.ch) }
+ else
+ { return Pos(nw.line + (pos.line - old.line), pos.ch) }
+}
+
+// Used by replaceSelections to allow moving the selection to the
+// start or around the replaced test. Hint may be "start" or "around".
+function computeReplacedSel(doc, changes, hint) {
+ var out = []
+ var oldPrev = Pos(doc.first, 0), newPrev = oldPrev
+ for (var i = 0; i < changes.length; i++) {
+ var change = changes[i]
+ var from = offsetPos(change.from, oldPrev, newPrev)
+ var to = offsetPos(changeEnd(change), oldPrev, newPrev)
+ oldPrev = change.to
+ newPrev = to
+ if (hint == "around") {
+ var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0
+ out[i] = new Range(inv ? to : from, inv ? from : to)
+ } else {
+ out[i] = new Range(from, from)
+ }
+ }
+ return new Selection(out, doc.sel.primIndex)
+}
+
+// Used to get the editor into a consistent state again when options change.
+
+function loadMode(cm) {
+ cm.doc.mode = getMode(cm.options, cm.doc.modeOption)
+ resetModeState(cm)
+}
+
+function resetModeState(cm) {
+ cm.doc.iter(function (line) {
+ if (line.stateAfter) { line.stateAfter = null }
+ if (line.styles) { line.styles = null }
+ })
+ cm.doc.modeFrontier = cm.doc.highlightFrontier = cm.doc.first
+ startWorker(cm, 100)
+ cm.state.modeGen++
+ if (cm.curOp) { regChange(cm) }
+}
+
+// DOCUMENT DATA STRUCTURE
+
+// By default, updates that start and end at the beginning of a line
+// are treated specially, in order to make the association of line
+// widgets and marker elements with the text behave more intuitive.
+function isWholeLineUpdate(doc, change) {
+ return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
+ (!doc.cm || doc.cm.options.wholeLineUpdateBefore)
+}
+
+// Perform a change on the document data structure.
+function updateDoc(doc, change, markedSpans, estimateHeight) {
+ function spansFor(n) {return markedSpans ? markedSpans[n] : null}
+ function update(line, text, spans) {
+ updateLine(line, text, spans, estimateHeight)
+ signalLater(line, "change", line, change)
+ }
+ function linesFor(start, end) {
+ var result = []
+ for (var i = start; i < end; ++i)
+ { result.push(new Line(text[i], spansFor(i), estimateHeight)) }
+ return result
+ }
+
+ var from = change.from, to = change.to, text = change.text
+ var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line)
+ var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line
+
+ // Adjust the line structure
+ if (change.full) {
+ doc.insert(0, linesFor(0, text.length))
+ doc.remove(text.length, doc.size - text.length)
+ } else if (isWholeLineUpdate(doc, change)) {
+ // This is a whole-line replace. Treated specially to make
+ // sure line objects move the way they are supposed to.
+ var added = linesFor(0, text.length - 1)
+ update(lastLine, lastLine.text, lastSpans)
+ if (nlines) { doc.remove(from.line, nlines) }
+ if (added.length) { doc.insert(from.line, added) }
+ } else if (firstLine == lastLine) {
+ if (text.length == 1) {
+ update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans)
+ } else {
+ var added$1 = linesFor(1, text.length - 1)
+ added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight))
+ update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0))
+ doc.insert(from.line + 1, added$1)
+ }
+ } else if (text.length == 1) {
+ update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0))
+ doc.remove(from.line + 1, nlines)
+ } else {
+ update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0))
+ update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans)
+ var added$2 = linesFor(1, text.length - 1)
+ if (nlines > 1) { doc.remove(from.line + 1, nlines - 1) }
+ doc.insert(from.line + 1, added$2)
+ }
+
+ signalLater(doc, "change", doc, change)
+}
+
+// Call f for all linked documents.
+function linkedDocs(doc, f, sharedHistOnly) {
+ function propagate(doc, skip, sharedHist) {
+ if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) {
+ var rel = doc.linked[i]
+ if (rel.doc == skip) { continue }
+ var shared = sharedHist && rel.sharedHist
+ if (sharedHistOnly && !shared) { continue }
+ f(rel.doc, shared)
+ propagate(rel.doc, doc, shared)
+ } }
+ }
+ propagate(doc, null, true)
+}
+
+// Attach a document to an editor.
+function attachDoc(cm, doc) {
+ if (doc.cm) { throw new Error("This document is already in use.") }
+ cm.doc = doc
+ doc.cm = cm
+ estimateLineHeights(cm)
+ loadMode(cm)
+ setDirectionClass(cm)
+ if (!cm.options.lineWrapping) { findMaxLine(cm) }
+ cm.options.mode = doc.modeOption
+ regChange(cm)
+}
+
+function setDirectionClass(cm) {
+ ;(cm.doc.direction == "rtl" ? addClass : rmClass)(cm.display.lineDiv, "CodeMirror-rtl")
+}
+
+function directionChanged(cm) {
+ runInOp(cm, function () {
+ setDirectionClass(cm)
+ regChange(cm)
+ })
+}
+
+function History(startGen) {
+ // Arrays of change events and selections. Doing something adds an
+ // event to done and clears undo. Undoing moves events from done
+ // to undone, redoing moves them in the other direction.
+ this.done = []; this.undone = []
+ this.undoDepth = Infinity
+ // Used to track when changes can be merged into a single undo
+ // event
+ this.lastModTime = this.lastSelTime = 0
+ this.lastOp = this.lastSelOp = null
+ this.lastOrigin = this.lastSelOrigin = null
+ // Used by the isClean() method
+ this.generation = this.maxGeneration = startGen || 1
+}
+
+// Create a history change event from an updateDoc-style change
+// object.
+function historyChangeFromChange(doc, change) {
+ var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)}
+ attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1)
+ linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true)
+ return histChange
+}
+
+// Pop all selection events off the end of a history array. Stop at
+// a change event.
+function clearSelectionEvents(array) {
+ while (array.length) {
+ var last = lst(array)
+ if (last.ranges) { array.pop() }
+ else { break }
+ }
+}
+
+// Find the top change event in the history. Pop off selection
+// events that are in the way.
+function lastChangeEvent(hist, force) {
+ if (force) {
+ clearSelectionEvents(hist.done)
+ return lst(hist.done)
+ } else if (hist.done.length && !lst(hist.done).ranges) {
+ return lst(hist.done)
+ } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
+ hist.done.pop()
+ return lst(hist.done)
+ }
+}
+
+// Register a change in the history. Merges changes that are within
+// a single operation, or are close together with an origin that
+// allows merging (starting with "+") into a single event.
+function addChangeToHistory(doc, change, selAfter, opId) {
+ var hist = doc.history
+ hist.undone.length = 0
+ var time = +new Date, cur
+ var last
+
+ if ((hist.lastOp == opId ||
+ hist.lastOrigin == change.origin && change.origin &&
+ ((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) ||
+ change.origin.charAt(0) == "*")) &&
+ (cur = lastChangeEvent(hist, hist.lastOp == opId))) {
+ // Merge this change into the last event
+ last = lst(cur.changes)
+ if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
+ // Optimized case for simple insertion -- don't want to add
+ // new changesets for every character typed
+ last.to = changeEnd(change)
+ } else {
+ // Add new sub-event
+ cur.changes.push(historyChangeFromChange(doc, change))
+ }
+ } else {
+ // Can not be merged, start a new event.
+ var before = lst(hist.done)
+ if (!before || !before.ranges)
+ { pushSelectionToHistory(doc.sel, hist.done) }
+ cur = {changes: [historyChangeFromChange(doc, change)],
+ generation: hist.generation}
+ hist.done.push(cur)
+ while (hist.done.length > hist.undoDepth) {
+ hist.done.shift()
+ if (!hist.done[0].ranges) { hist.done.shift() }
+ }
+ }
+ hist.done.push(selAfter)
+ hist.generation = ++hist.maxGeneration
+ hist.lastModTime = hist.lastSelTime = time
+ hist.lastOp = hist.lastSelOp = opId
+ hist.lastOrigin = hist.lastSelOrigin = change.origin
+
+ if (!last) { signal(doc, "historyAdded") }
+}
+
+function selectionEventCanBeMerged(doc, origin, prev, sel) {
+ var ch = origin.charAt(0)
+ return ch == "*" ||
+ ch == "+" &&
+ prev.ranges.length == sel.ranges.length &&
+ prev.somethingSelected() == sel.somethingSelected() &&
+ new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500)
+}
+
+// Called whenever the selection changes, sets the new selection as
+// the pending selection in the history, and pushes the old pending
+// selection into the 'done' array when it was significantly
+// different (in number of selected ranges, emptiness, or time).
+function addSelectionToHistory(doc, sel, opId, options) {
+ var hist = doc.history, origin = options && options.origin
+
+ // A new event is started when the previous origin does not match
+ // the current, or the origins don't allow matching. Origins
+ // starting with * are always merged, those starting with + are
+ // merged when similar and close together in time.
+ if (opId == hist.lastSelOp ||
+ (origin && hist.lastSelOrigin == origin &&
+ (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
+ selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
+ { hist.done[hist.done.length - 1] = sel }
+ else
+ { pushSelectionToHistory(sel, hist.done) }
+
+ hist.lastSelTime = +new Date
+ hist.lastSelOrigin = origin
+ hist.lastSelOp = opId
+ if (options && options.clearRedo !== false)
+ { clearSelectionEvents(hist.undone) }
+}
+
+function pushSelectionToHistory(sel, dest) {
+ var top = lst(dest)
+ if (!(top && top.ranges && top.equals(sel)))
+ { dest.push(sel) }
+}
+
+// Used to store marked span information in the history.
+function attachLocalSpans(doc, change, from, to) {
+ var existing = change["spans_" + doc.id], n = 0
+ doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) {
+ if (line.markedSpans)
+ { (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans }
+ ++n
+ })
+}
+
+// When un/re-doing restores text containing marked spans, those
+// that have been explicitly cleared should not be restored.
+function removeClearedSpans(spans) {
+ if (!spans) { return null }
+ var out
+ for (var i = 0; i < spans.length; ++i) {
+ if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i) } }
+ else if (out) { out.push(spans[i]) }
+ }
+ return !out ? spans : out.length ? out : null
+}
+
+// Retrieve and filter the old marked spans stored in a change event.
+function getOldSpans(doc, change) {
+ var found = change["spans_" + doc.id]
+ if (!found) { return null }
+ var nw = []
+ for (var i = 0; i < change.text.length; ++i)
+ { nw.push(removeClearedSpans(found[i])) }
+ return nw
+}
+
+// Used for un/re-doing changes from the history. Combines the
+// result of computing the existing spans with the set of spans that
+// existed in the history (so that deleting around a span and then
+// undoing brings back the span).
+function mergeOldSpans(doc, change) {
+ var old = getOldSpans(doc, change)
+ var stretched = stretchSpansOverChange(doc, change)
+ if (!old) { return stretched }
+ if (!stretched) { return old }
+
+ for (var i = 0; i < old.length; ++i) {
+ var oldCur = old[i], stretchCur = stretched[i]
+ if (oldCur && stretchCur) {
+ spans: for (var j = 0; j < stretchCur.length; ++j) {
+ var span = stretchCur[j]
+ for (var k = 0; k < oldCur.length; ++k)
+ { if (oldCur[k].marker == span.marker) { continue spans } }
+ oldCur.push(span)
+ }
+ } else if (stretchCur) {
+ old[i] = stretchCur
+ }
+ }
+ return old
+}
+
+// Used both to provide a JSON-safe object in .getHistory, and, when
+// detaching a document, to split the history in two
+function copyHistoryArray(events, newGroup, instantiateSel) {
+ var copy = []
+ for (var i = 0; i < events.length; ++i) {
+ var event = events[i]
+ if (event.ranges) {
+ copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event)
+ continue
+ }
+ var changes = event.changes, newChanges = []
+ copy.push({changes: newChanges})
+ for (var j = 0; j < changes.length; ++j) {
+ var change = changes[j], m = (void 0)
+ newChanges.push({from: change.from, to: change.to, text: change.text})
+ if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\d+)$/)) {
+ if (indexOf(newGroup, Number(m[1])) > -1) {
+ lst(newChanges)[prop] = change[prop]
+ delete change[prop]
+ }
+ } } }
+ }
+ }
+ return copy
+}
+
+// The 'scroll' parameter given to many of these indicated whether
+// the new cursor position should be scrolled into view after
+// modifying the selection.
+
+// If shift is held or the extend flag is set, extends a range to
+// include a given position (and optionally a second position).
+// Otherwise, simply returns the range between the given positions.
+// Used for cursor motion and such.
+function extendRange(range, head, other, extend) {
+ if (extend) {
+ var anchor = range.anchor
+ if (other) {
+ var posBefore = cmp(head, anchor) < 0
+ if (posBefore != (cmp(other, anchor) < 0)) {
+ anchor = head
+ head = other
+ } else if (posBefore != (cmp(head, other) < 0)) {
+ head = other
+ }
+ }
+ return new Range(anchor, head)
+ } else {
+ return new Range(other || head, head)
+ }
+}
+
+// Extend the primary selection range, discard the rest.
+function extendSelection(doc, head, other, options, extend) {
+ if (extend == null) { extend = doc.cm && (doc.cm.display.shift || doc.extend) }
+ setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options)
+}
+
+// Extend all selections (pos is an array of selections with length
+// equal the number of selections)
+function extendSelections(doc, heads, options) {
+ var out = []
+ var extend = doc.cm && (doc.cm.display.shift || doc.extend)
+ for (var i = 0; i < doc.sel.ranges.length; i++)
+ { out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend) }
+ var newSel = normalizeSelection(out, doc.sel.primIndex)
+ setSelection(doc, newSel, options)
+}
+
+// Updates a single range in the selection.
+function replaceOneSelection(doc, i, range, options) {
+ var ranges = doc.sel.ranges.slice(0)
+ ranges[i] = range
+ setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options)
+}
+
+// Reset the selection to a single range.
+function setSimpleSelection(doc, anchor, head, options) {
+ setSelection(doc, simpleSelection(anchor, head), options)
+}
+
+// Give beforeSelectionChange handlers a change to influence a
+// selection update.
+function filterSelectionChange(doc, sel, options) {
+ var obj = {
+ ranges: sel.ranges,
+ update: function(ranges) {
+ var this$1 = this;
+
+ this.ranges = []
+ for (var i = 0; i < ranges.length; i++)
+ { this$1.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
+ clipPos(doc, ranges[i].head)) }
+ },
+ origin: options && options.origin
+ }
+ signal(doc, "beforeSelectionChange", doc, obj)
+ if (doc.cm) { signal(doc.cm, "beforeSelectionChange", doc.cm, obj) }
+ if (obj.ranges != sel.ranges) { return normalizeSelection(obj.ranges, obj.ranges.length - 1) }
+ else { return sel }
+}
+
+function setSelectionReplaceHistory(doc, sel, options) {
+ var done = doc.history.done, last = lst(done)
+ if (last && last.ranges) {
+ done[done.length - 1] = sel
+ setSelectionNoUndo(doc, sel, options)
+ } else {
+ setSelection(doc, sel, options)
+ }
+}
+
+// Set a new selection.
+function setSelection(doc, sel, options) {
+ setSelectionNoUndo(doc, sel, options)
+ addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options)
+}
+
+function setSelectionNoUndo(doc, sel, options) {
+ if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
+ { sel = filterSelectionChange(doc, sel, options) }
+
+ var bias = options && options.bias ||
+ (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1)
+ setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true))
+
+ if (!(options && options.scroll === false) && doc.cm)
+ { ensureCursorVisible(doc.cm) }
+}
+
+function setSelectionInner(doc, sel) {
+ if (sel.equals(doc.sel)) { return }
+
+ doc.sel = sel
+
+ if (doc.cm) {
+ doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true
+ signalCursorActivity(doc.cm)
+ }
+ signalLater(doc, "cursorActivity", doc)
+}
+
+// Verify that the selection does not partially select any atomic
+// marked ranges.
+function reCheckSelection(doc) {
+ setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false))
+}
+
+// Return a selection that does not partially select any atomic
+// ranges.
+function skipAtomicInSelection(doc, sel, bias, mayClear) {
+ var out
+ for (var i = 0; i < sel.ranges.length; i++) {
+ var range = sel.ranges[i]
+ var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i]
+ var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear)
+ var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear)
+ if (out || newAnchor != range.anchor || newHead != range.head) {
+ if (!out) { out = sel.ranges.slice(0, i) }
+ out[i] = new Range(newAnchor, newHead)
+ }
+ }
+ return out ? normalizeSelection(out, sel.primIndex) : sel
+}
+
+function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {
+ var line = getLine(doc, pos.line)
+ if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
+ var sp = line.markedSpans[i], m = sp.marker
+ if ((sp.from == null || (m.inclusiveLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&
+ (sp.to == null || (m.inclusiveRight ? sp.to >= pos.ch : sp.to > pos.ch))) {
+ if (mayClear) {
+ signal(m, "beforeCursorEnter")
+ if (m.explicitlyCleared) {
+ if (!line.markedSpans) { break }
+ else {--i; continue}
+ }
+ }
+ if (!m.atomic) { continue }
+
+ if (oldPos) {
+ var near = m.find(dir < 0 ? 1 : -1), diff = (void 0)
+ if (dir < 0 ? m.inclusiveRight : m.inclusiveLeft)
+ { near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null) }
+ if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))
+ { return skipAtomicInner(doc, near, pos, dir, mayClear) }
+ }
+
+ var far = m.find(dir < 0 ? -1 : 1)
+ if (dir < 0 ? m.inclusiveLeft : m.inclusiveRight)
+ { far = movePos(doc, far, dir, far.line == pos.line ? line : null) }
+ return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null
+ }
+ } }
+ return pos
+}
+
+// Ensure a given position is not inside an atomic range.
+function skipAtomic(doc, pos, oldPos, bias, mayClear) {
+ var dir = bias || 1
+ var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||
+ (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||
+ skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||
+ (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true))
+ if (!found) {
+ doc.cantEdit = true
+ return Pos(doc.first, 0)
+ }
+ return found
+}
+
+function movePos(doc, pos, dir, line) {
+ if (dir < 0 && pos.ch == 0) {
+ if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) }
+ else { return null }
+ } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {
+ if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) }
+ else { return null }
+ } else {
+ return new Pos(pos.line, pos.ch + dir)
+ }
+}
+
+function selectAll(cm) {
+ cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll)
+}
+
+// UPDATING
+
+// Allow "beforeChange" event handlers to influence a change
+function filterChange(doc, change, update) {
+ var obj = {
+ canceled: false,
+ from: change.from,
+ to: change.to,
+ text: change.text,
+ origin: change.origin,
+ cancel: function () { return obj.canceled = true; }
+ }
+ if (update) { obj.update = function (from, to, text, origin) {
+ if (from) { obj.from = clipPos(doc, from) }
+ if (to) { obj.to = clipPos(doc, to) }
+ if (text) { obj.text = text }
+ if (origin !== undefined) { obj.origin = origin }
+ } }
+ signal(doc, "beforeChange", doc, obj)
+ if (doc.cm) { signal(doc.cm, "beforeChange", doc.cm, obj) }
+
+ if (obj.canceled) { return null }
+ return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}
+}
+
+// Apply a change to a document, and add it to the document's
+// history, and propagating it to all linked documents.
+function makeChange(doc, change, ignoreReadOnly) {
+ if (doc.cm) {
+ if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) }
+ if (doc.cm.state.suppressEdits) { return }
+ }
+
+ if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
+ change = filterChange(doc, change, true)
+ if (!change) { return }
+ }
+
+ // Possibly split or suppress the update based on the presence
+ // of read-only spans in its range.
+ var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to)
+ if (split) {
+ for (var i = split.length - 1; i >= 0; --i)
+ { makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text, origin: change.origin}) }
+ } else {
+ makeChangeInner(doc, change)
+ }
+}
+
+function makeChangeInner(doc, change) {
+ if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) { return }
+ var selAfter = computeSelAfterChange(doc, change)
+ addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN)
+
+ makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change))
+ var rebased = []
+
+ linkedDocs(doc, function (doc, sharedHist) {
+ if (!sharedHist && indexOf(rebased, doc.history) == -1) {
+ rebaseHist(doc.history, change)
+ rebased.push(doc.history)
+ }
+ makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change))
+ })
+}
+
+// Revert a change stored in a document's history.
+function makeChangeFromHistory(doc, type, allowSelectionOnly) {
+ if (doc.cm && doc.cm.state.suppressEdits && !allowSelectionOnly) { return }
+
+ var hist = doc.history, event, selAfter = doc.sel
+ var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done
+
+ // Verify that there is a useable event (so that ctrl-z won't
+ // needlessly clear selection events)
+ var i = 0
+ for (; i < source.length; i++) {
+ event = source[i]
+ if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
+ { break }
+ }
+ if (i == source.length) { return }
+ hist.lastOrigin = hist.lastSelOrigin = null
+
+ for (;;) {
+ event = source.pop()
+ if (event.ranges) {
+ pushSelectionToHistory(event, dest)
+ if (allowSelectionOnly && !event.equals(doc.sel)) {
+ setSelection(doc, event, {clearRedo: false})
+ return
+ }
+ selAfter = event
+ }
+ else { break }
+ }
+
+ // Build up a reverse change object to add to the opposite history
+ // stack (redo when undoing, and vice versa).
+ var antiChanges = []
+ pushSelectionToHistory(selAfter, dest)
+ dest.push({changes: antiChanges, generation: hist.generation})
+ hist.generation = event.generation || ++hist.maxGeneration
+
+ var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")
+
+ var loop = function ( i ) {
+ var change = event.changes[i]
+ change.origin = type
+ if (filter && !filterChange(doc, change, false)) {
+ source.length = 0
+ return {}
+ }
+
+ antiChanges.push(historyChangeFromChange(doc, change))
+
+ var after = i ? computeSelAfterChange(doc, change) : lst(source)
+ makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change))
+ if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}) }
+ var rebased = []
+
+ // Propagate to the linked documents
+ linkedDocs(doc, function (doc, sharedHist) {
+ if (!sharedHist && indexOf(rebased, doc.history) == -1) {
+ rebaseHist(doc.history, change)
+ rebased.push(doc.history)
+ }
+ makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change))
+ })
+ };
+
+ for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) {
+ var returned = loop( i$1 );
+
+ if ( returned ) return returned.v;
+ }
+}
+
+// Sub-views need their line numbers shifted when text is added
+// above or below them in the parent document.
+function shiftDoc(doc, distance) {
+ if (distance == 0) { return }
+ doc.first += distance
+ doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range(
+ Pos(range.anchor.line + distance, range.anchor.ch),
+ Pos(range.head.line + distance, range.head.ch)
+ ); }), doc.sel.primIndex)
+ if (doc.cm) {
+ regChange(doc.cm, doc.first, doc.first - distance, distance)
+ for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
+ { regLineChange(doc.cm, l, "gutter") }
+ }
+}
+
+// More lower-level change function, handling only a single document
+// (not linked ones).
+function makeChangeSingleDoc(doc, change, selAfter, spans) {
+ if (doc.cm && !doc.cm.curOp)
+ { return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) }
+
+ if (change.to.line < doc.first) {
+ shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line))
+ return
+ }
+ if (change.from.line > doc.lastLine()) { return }
+
+ // Clip the change to the size of this doc
+ if (change.from.line < doc.first) {
+ var shift = change.text.length - 1 - (doc.first - change.from.line)
+ shiftDoc(doc, shift)
+ change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
+ text: [lst(change.text)], origin: change.origin}
+ }
+ var last = doc.lastLine()
+ if (change.to.line > last) {
+ change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
+ text: [change.text[0]], origin: change.origin}
+ }
+
+ change.removed = getBetween(doc, change.from, change.to)
+
+ if (!selAfter) { selAfter = computeSelAfterChange(doc, change) }
+ if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans) }
+ else { updateDoc(doc, change, spans) }
+ setSelectionNoUndo(doc, selAfter, sel_dontScroll)
+}
+
+// Handle the interaction of a change to a document with the editor
+// that this document is part of.
+function makeChangeSingleDocInEditor(cm, change, spans) {
+ var doc = cm.doc, display = cm.display, from = change.from, to = change.to
+
+ var recomputeMaxLength = false, checkWidthStart = from.line
+ if (!cm.options.lineWrapping) {
+ checkWidthStart = lineNo(visualLine(getLine(doc, from.line)))
+ doc.iter(checkWidthStart, to.line + 1, function (line) {
+ if (line == display.maxLine) {
+ recomputeMaxLength = true
+ return true
+ }
+ })
+ }
+
+ if (doc.sel.contains(change.from, change.to) > -1)
+ { signalCursorActivity(cm) }
+
+ updateDoc(doc, change, spans, estimateHeight(cm))
+
+ if (!cm.options.lineWrapping) {
+ doc.iter(checkWidthStart, from.line + change.text.length, function (line) {
+ var len = lineLength(line)
+ if (len > display.maxLineLength) {
+ display.maxLine = line
+ display.maxLineLength = len
+ display.maxLineChanged = true
+ recomputeMaxLength = false
+ }
+ })
+ if (recomputeMaxLength) { cm.curOp.updateMaxLine = true }
+ }
+
+ retreatFrontier(doc, from.line)
+ startWorker(cm, 400)
+
+ var lendiff = change.text.length - (to.line - from.line) - 1
+ // Remember that these lines changed, for updating the display
+ if (change.full)
+ { regChange(cm) }
+ else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
+ { regLineChange(cm, from.line, "text") }
+ else
+ { regChange(cm, from.line, to.line + 1, lendiff) }
+
+ var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change")
+ if (changeHandler || changesHandler) {
+ var obj = {
+ from: from, to: to,
+ text: change.text,
+ removed: change.removed,
+ origin: change.origin
+ }
+ if (changeHandler) { signalLater(cm, "change", cm, obj) }
+ if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj) }
+ }
+ cm.display.selForContextMenu = null
+}
+
+function replaceRange(doc, code, from, to, origin) {
+ if (!to) { to = from }
+ if (cmp(to, from) < 0) { var assign;
+ (assign = [to, from], from = assign[0], to = assign[1], assign) }
+ if (typeof code == "string") { code = doc.splitLines(code) }
+ makeChange(doc, {from: from, to: to, text: code, origin: origin})
+}
+
+// Rebasing/resetting history to deal with externally-sourced changes
+
+function rebaseHistSelSingle(pos, from, to, diff) {
+ if (to < pos.line) {
+ pos.line += diff
+ } else if (from < pos.line) {
+ pos.line = from
+ pos.ch = 0
+ }
+}
+
+// Tries to rebase an array of history events given a change in the
+// document. If the change touches the same lines as the event, the
+// event, and everything 'behind' it, is discarded. If the change is
+// before the event, the event's positions are updated. Uses a
+// copy-on-write scheme for the positions, to avoid having to
+// reallocate them all on every rebase, but also avoid problems with
+// shared position objects being unsafely updated.
+function rebaseHistArray(array, from, to, diff) {
+ for (var i = 0; i < array.length; ++i) {
+ var sub = array[i], ok = true
+ if (sub.ranges) {
+ if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true }
+ for (var j = 0; j < sub.ranges.length; j++) {
+ rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff)
+ rebaseHistSelSingle(sub.ranges[j].head, from, to, diff)
+ }
+ continue
+ }
+ for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) {
+ var cur = sub.changes[j$1]
+ if (to < cur.from.line) {
+ cur.from = Pos(cur.from.line + diff, cur.from.ch)
+ cur.to = Pos(cur.to.line + diff, cur.to.ch)
+ } else if (from <= cur.to.line) {
+ ok = false
+ break
+ }
+ }
+ if (!ok) {
+ array.splice(0, i + 1)
+ i = 0
+ }
+ }
+}
+
+function rebaseHist(hist, change) {
+ var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1
+ rebaseHistArray(hist.done, from, to, diff)
+ rebaseHistArray(hist.undone, from, to, diff)
+}
+
+// Utility for applying a change to a line by handle or number,
+// returning the number and optionally registering the line as
+// changed.
+function changeLine(doc, handle, changeType, op) {
+ var no = handle, line = handle
+ if (typeof handle == "number") { line = getLine(doc, clipLine(doc, handle)) }
+ else { no = lineNo(handle) }
+ if (no == null) { return null }
+ if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType) }
+ return line
+}
+
+// The document is represented as a BTree consisting of leaves, with
+// chunk of lines in them, and branches, with up to ten leaves or
+// other branch nodes below them. The top node is always a branch
+// node, and is the document object itself (meaning it has
+// additional methods and properties).
+//
+// All nodes have parent links. The tree is used both to go from
+// line numbers to line objects, and to go from objects to numbers.
+// It also indexes by height, and is used to convert between height
+// and line object, and to find the total height of the document.
+//
+// See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html
+
+function LeafChunk(lines) {
+ var this$1 = this;
+
+ this.lines = lines
+ this.parent = null
+ var height = 0
+ for (var i = 0; i < lines.length; ++i) {
+ lines[i].parent = this$1
+ height += lines[i].height
+ }
+ this.height = height
+}
+
+LeafChunk.prototype = {
+ chunkSize: function chunkSize() { return this.lines.length },
+
+ // Remove the n lines at offset 'at'.
+ removeInner: function removeInner(at, n) {
+ var this$1 = this;
+
+ for (var i = at, e = at + n; i < e; ++i) {
+ var line = this$1.lines[i]
+ this$1.height -= line.height
+ cleanUpLine(line)
+ signalLater(line, "delete")
+ }
+ this.lines.splice(at, n)
+ },
+
+ // Helper used to collapse a small branch into a single leaf.
+ collapse: function collapse(lines) {
+ lines.push.apply(lines, this.lines)
+ },
+
+ // Insert the given array of lines at offset 'at', count them as
+ // having the given height.
+ insertInner: function insertInner(at, lines, height) {
+ var this$1 = this;
+
+ this.height += height
+ this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at))
+ for (var i = 0; i < lines.length; ++i) { lines[i].parent = this$1 }
+ },
+
+ // Used to iterate over a part of the tree.
+ iterN: function iterN(at, n, op) {
+ var this$1 = this;
+
+ for (var e = at + n; at < e; ++at)
+ { if (op(this$1.lines[at])) { return true } }
+ }
+}
+
+function BranchChunk(children) {
+ var this$1 = this;
+
+ this.children = children
+ var size = 0, height = 0
+ for (var i = 0; i < children.length; ++i) {
+ var ch = children[i]
+ size += ch.chunkSize(); height += ch.height
+ ch.parent = this$1
+ }
+ this.size = size
+ this.height = height
+ this.parent = null
+}
+
+BranchChunk.prototype = {
+ chunkSize: function chunkSize() { return this.size },
+
+ removeInner: function removeInner(at, n) {
+ var this$1 = this;
+
+ this.size -= n
+ for (var i = 0; i < this.children.length; ++i) {
+ var child = this$1.children[i], sz = child.chunkSize()
+ if (at < sz) {
+ var rm = Math.min(n, sz - at), oldHeight = child.height
+ child.removeInner(at, rm)
+ this$1.height -= oldHeight - child.height
+ if (sz == rm) { this$1.children.splice(i--, 1); child.parent = null }
+ if ((n -= rm) == 0) { break }
+ at = 0
+ } else { at -= sz }
+ }
+ // If the result is smaller than 25 lines, ensure that it is a
+ // single leaf node.
+ if (this.size - n < 25 &&
+ (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
+ var lines = []
+ this.collapse(lines)
+ this.children = [new LeafChunk(lines)]
+ this.children[0].parent = this
+ }
+ },
+
+ collapse: function collapse(lines) {
+ var this$1 = this;
+
+ for (var i = 0; i < this.children.length; ++i) { this$1.children[i].collapse(lines) }
+ },
+
+ insertInner: function insertInner(at, lines, height) {
+ var this$1 = this;
+
+ this.size += lines.length
+ this.height += height
+ for (var i = 0; i < this.children.length; ++i) {
+ var child = this$1.children[i], sz = child.chunkSize()
+ if (at <= sz) {
+ child.insertInner(at, lines, height)
+ if (child.lines && child.lines.length > 50) {
+ // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.
+ // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.
+ var remaining = child.lines.length % 25 + 25
+ for (var pos = remaining; pos < child.lines.length;) {
+ var leaf = new LeafChunk(child.lines.slice(pos, pos += 25))
+ child.height -= leaf.height
+ this$1.children.splice(++i, 0, leaf)
+ leaf.parent = this$1
+ }
+ child.lines = child.lines.slice(0, remaining)
+ this$1.maybeSpill()
+ }
+ break
+ }
+ at -= sz
+ }
+ },
+
+ // When a node has grown, check whether it should be split.
+ maybeSpill: function maybeSpill() {
+ if (this.children.length <= 10) { return }
+ var me = this
+ do {
+ var spilled = me.children.splice(me.children.length - 5, 5)
+ var sibling = new BranchChunk(spilled)
+ if (!me.parent) { // Become the parent node
+ var copy = new BranchChunk(me.children)
+ copy.parent = me
+ me.children = [copy, sibling]
+ me = copy
+ } else {
+ me.size -= sibling.size
+ me.height -= sibling.height
+ var myIndex = indexOf(me.parent.children, me)
+ me.parent.children.splice(myIndex + 1, 0, sibling)
+ }
+ sibling.parent = me.parent
+ } while (me.children.length > 10)
+ me.parent.maybeSpill()
+ },
+
+ iterN: function iterN(at, n, op) {
+ var this$1 = this;
+
+ for (var i = 0; i < this.children.length; ++i) {
+ var child = this$1.children[i], sz = child.chunkSize()
+ if (at < sz) {
+ var used = Math.min(n, sz - at)
+ if (child.iterN(at, used, op)) { return true }
+ if ((n -= used) == 0) { break }
+ at = 0
+ } else { at -= sz }
+ }
+ }
+}
+
+// Line widgets are block elements displayed above or below a line.
+
+var LineWidget = function(doc, node, options) {
+ var this$1 = this;
+
+ if (options) { for (var opt in options) { if (options.hasOwnProperty(opt))
+ { this$1[opt] = options[opt] } } }
+ this.doc = doc
+ this.node = node
+};
+
+LineWidget.prototype.clear = function () {
+ var this$1 = this;
+
+ var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line)
+ if (no == null || !ws) { return }
+ for (var i = 0; i < ws.length; ++i) { if (ws[i] == this$1) { ws.splice(i--, 1) } }
+ if (!ws.length) { line.widgets = null }
+ var height = widgetHeight(this)
+ updateLineHeight(line, Math.max(0, line.height - height))
+ if (cm) {
+ runInOp(cm, function () {
+ adjustScrollWhenAboveVisible(cm, line, -height)
+ regLineChange(cm, no, "widget")
+ })
+ signalLater(cm, "lineWidgetCleared", cm, this, no)
+ }
+};
+
+LineWidget.prototype.changed = function () {
+ var this$1 = this;
+
+ var oldH = this.height, cm = this.doc.cm, line = this.line
+ this.height = null
+ var diff = widgetHeight(this) - oldH
+ if (!diff) { return }
+ updateLineHeight(line, line.height + diff)
+ if (cm) {
+ runInOp(cm, function () {
+ cm.curOp.forceUpdate = true
+ adjustScrollWhenAboveVisible(cm, line, diff)
+ signalLater(cm, "lineWidgetChanged", cm, this$1, lineNo(line))
+ })
+ }
+};
+eventMixin(LineWidget)
+
+function adjustScrollWhenAboveVisible(cm, line, diff) {
+ if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
+ { addToScrollTop(cm, diff) }
+}
+
+function addLineWidget(doc, handle, node, options) {
+ var widget = new LineWidget(doc, node, options)
+ var cm = doc.cm
+ if (cm && widget.noHScroll) { cm.display.alignWidgets = true }
+ changeLine(doc, handle, "widget", function (line) {
+ var widgets = line.widgets || (line.widgets = [])
+ if (widget.insertAt == null) { widgets.push(widget) }
+ else { widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget) }
+ widget.line = line
+ if (cm && !lineIsHidden(doc, line)) {
+ var aboveVisible = heightAtLine(line) < doc.scrollTop
+ updateLineHeight(line, line.height + widgetHeight(widget))
+ if (aboveVisible) { addToScrollTop(cm, widget.height) }
+ cm.curOp.forceUpdate = true
+ }
+ return true
+ })
+ signalLater(cm, "lineWidgetAdded", cm, widget, typeof handle == "number" ? handle : lineNo(handle))
+ return widget
+}
+
+// TEXTMARKERS
+
+// Created with markText and setBookmark methods. A TextMarker is a
+// handle that can be used to clear or find a marked position in the
+// document. Line objects hold arrays (markedSpans) containing
+// {from, to, marker} object pointing to such marker objects, and
+// indicating that such a marker is present on that line. Multiple
+// lines may point to the same marker when it spans across lines.
+// The spans will have null for their from/to properties when the
+// marker continues beyond the start/end of the line. Markers have
+// links back to the lines they currently touch.
+
+// Collapsed markers have unique ids, in order to be able to order
+// them, which is needed for uniquely determining an outer marker
+// when they overlap (they may nest, but not partially overlap).
+var nextMarkerId = 0
+
+var TextMarker = function(doc, type) {
+ this.lines = []
+ this.type = type
+ this.doc = doc
+ this.id = ++nextMarkerId
+};
+
+// Clear the marker.
+TextMarker.prototype.clear = function () {
+ var this$1 = this;
+
+ if (this.explicitlyCleared) { return }
+ var cm = this.doc.cm, withOp = cm && !cm.curOp
+ if (withOp) { startOperation(cm) }
+ if (hasHandler(this, "clear")) {
+ var found = this.find()
+ if (found) { signalLater(this, "clear", found.from, found.to) }
+ }
+ var min = null, max = null
+ for (var i = 0; i < this.lines.length; ++i) {
+ var line = this$1.lines[i]
+ var span = getMarkedSpanFor(line.markedSpans, this$1)
+ if (cm && !this$1.collapsed) { regLineChange(cm, lineNo(line), "text") }
+ else if (cm) {
+ if (span.to != null) { max = lineNo(line) }
+ if (span.from != null) { min = lineNo(line) }
+ }
+ line.markedSpans = removeMarkedSpan(line.markedSpans, span)
+ if (span.from == null && this$1.collapsed && !lineIsHidden(this$1.doc, line) && cm)
+ { updateLineHeight(line, textHeight(cm.display)) }
+ }
+ if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) {
+ var visual = visualLine(this$1.lines[i$1]), len = lineLength(visual)
+ if (len > cm.display.maxLineLength) {
+ cm.display.maxLine = visual
+ cm.display.maxLineLength = len
+ cm.display.maxLineChanged = true
+ }
+ } }
+
+ if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1) }
+ this.lines.length = 0
+ this.explicitlyCleared = true
+ if (this.atomic && this.doc.cantEdit) {
+ this.doc.cantEdit = false
+ if (cm) { reCheckSelection(cm.doc) }
+ }
+ if (cm) { signalLater(cm, "markerCleared", cm, this, min, max) }
+ if (withOp) { endOperation(cm) }
+ if (this.parent) { this.parent.clear() }
+};
+
+// Find the position of the marker in the document. Returns a {from,
+// to} object by default. Side can be passed to get a specific side
+// -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
+// Pos objects returned contain a line object, rather than a line
+// number (used to prevent looking up the same line twice).
+TextMarker.prototype.find = function (side, lineObj) {
+ var this$1 = this;
+
+ if (side == null && this.type == "bookmark") { side = 1 }
+ var from, to
+ for (var i = 0; i < this.lines.length; ++i) {
+ var line = this$1.lines[i]
+ var span = getMarkedSpanFor(line.markedSpans, this$1)
+ if (span.from != null) {
+ from = Pos(lineObj ? line : lineNo(line), span.from)
+ if (side == -1) { return from }
+ }
+ if (span.to != null) {
+ to = Pos(lineObj ? line : lineNo(line), span.to)
+ if (side == 1) { return to }
+ }
+ }
+ return from && {from: from, to: to}
+};
+
+// Signals that the marker's widget changed, and surrounding layout
+// should be recomputed.
+TextMarker.prototype.changed = function () {
+ var this$1 = this;
+
+ var pos = this.find(-1, true), widget = this, cm = this.doc.cm
+ if (!pos || !cm) { return }
+ runInOp(cm, function () {
+ var line = pos.line, lineN = lineNo(pos.line)
+ var view = findViewForLine(cm, lineN)
+ if (view) {
+ clearLineMeasurementCacheFor(view)
+ cm.curOp.selectionChanged = cm.curOp.forceUpdate = true
+ }
+ cm.curOp.updateMaxLine = true
+ if (!lineIsHidden(widget.doc, line) && widget.height != null) {
+ var oldHeight = widget.height
+ widget.height = null
+ var dHeight = widgetHeight(widget) - oldHeight
+ if (dHeight)
+ { updateLineHeight(line, line.height + dHeight) }
+ }
+ signalLater(cm, "markerChanged", cm, this$1)
+ })
+};
+
+TextMarker.prototype.attachLine = function (line) {
+ if (!this.lines.length && this.doc.cm) {
+ var op = this.doc.cm.curOp
+ if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
+ { (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this) }
+ }
+ this.lines.push(line)
+};
+
+TextMarker.prototype.detachLine = function (line) {
+ this.lines.splice(indexOf(this.lines, line), 1)
+ if (!this.lines.length && this.doc.cm) {
+ var op = this.doc.cm.curOp
+ ;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this)
+ }
+};
+eventMixin(TextMarker)
+
+// Create a marker, wire it up to the right lines, and
+function markText(doc, from, to, options, type) {
+ // Shared markers (across linked documents) are handled separately
+ // (markTextShared will call out to this again, once per
+ // document).
+ if (options && options.shared) { return markTextShared(doc, from, to, options, type) }
+ // Ensure we are in an operation.
+ if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) }
+
+ var marker = new TextMarker(doc, type), diff = cmp(from, to)
+ if (options) { copyObj(options, marker, false) }
+ // Don't connect empty markers unless clearWhenEmpty is false
+ if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
+ { return marker }
+ if (marker.replacedWith) {
+ // Showing up as a widget implies collapsed (widget replaces text)
+ marker.collapsed = true
+ marker.widgetNode = eltP("span", [marker.replacedWith], "CodeMirror-widget")
+ if (!options.handleMouseEvents) { marker.widgetNode.setAttribute("cm-ignore-events", "true") }
+ if (options.insertLeft) { marker.widgetNode.insertLeft = true }
+ }
+ if (marker.collapsed) {
+ if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
+ from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
+ { throw new Error("Inserting collapsed marker partially overlapping an existing one") }
+ seeCollapsedSpans()
+ }
+
+ if (marker.addToHistory)
+ { addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN) }
+
+ var curLine = from.line, cm = doc.cm, updateMaxLine
+ doc.iter(curLine, to.line + 1, function (line) {
+ if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
+ { updateMaxLine = true }
+ if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0) }
+ addMarkedSpan(line, new MarkedSpan(marker,
+ curLine == from.line ? from.ch : null,
+ curLine == to.line ? to.ch : null))
+ ++curLine
+ })
+ // lineIsHidden depends on the presence of the spans, so needs a second pass
+ if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) {
+ if (lineIsHidden(doc, line)) { updateLineHeight(line, 0) }
+ }) }
+
+ if (marker.clearOnEnter) { on(marker, "beforeCursorEnter", function () { return marker.clear(); }) }
+
+ if (marker.readOnly) {
+ seeReadOnlySpans()
+ if (doc.history.done.length || doc.history.undone.length)
+ { doc.clearHistory() }
+ }
+ if (marker.collapsed) {
+ marker.id = ++nextMarkerId
+ marker.atomic = true
+ }
+ if (cm) {
+ // Sync editor state
+ if (updateMaxLine) { cm.curOp.updateMaxLine = true }
+ if (marker.collapsed)
+ { regChange(cm, from.line, to.line + 1) }
+ else if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.css)
+ { for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, "text") } }
+ if (marker.atomic) { reCheckSelection(cm.doc) }
+ signalLater(cm, "markerAdded", cm, marker)
+ }
+ return marker
+}
+
+// SHARED TEXTMARKERS
+
+// A shared marker spans multiple linked documents. It is
+// implemented as a meta-marker-object controlling multiple normal
+// markers.
+var SharedTextMarker = function(markers, primary) {
+ var this$1 = this;
+
+ this.markers = markers
+ this.primary = primary
+ for (var i = 0; i < markers.length; ++i)
+ { markers[i].parent = this$1 }
+};
+
+SharedTextMarker.prototype.clear = function () {
+ var this$1 = this;
+
+ if (this.explicitlyCleared) { return }
+ this.explicitlyCleared = true
+ for (var i = 0; i < this.markers.length; ++i)
+ { this$1.markers[i].clear() }
+ signalLater(this, "clear")
+};
+
+SharedTextMarker.prototype.find = function (side, lineObj) {
+ return this.primary.find(side, lineObj)
+};
+eventMixin(SharedTextMarker)
+
+function markTextShared(doc, from, to, options, type) {
+ options = copyObj(options)
+ options.shared = false
+ var markers = [markText(doc, from, to, options, type)], primary = markers[0]
+ var widget = options.widgetNode
+ linkedDocs(doc, function (doc) {
+ if (widget) { options.widgetNode = widget.cloneNode(true) }
+ markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type))
+ for (var i = 0; i < doc.linked.length; ++i)
+ { if (doc.linked[i].isParent) { return } }
+ primary = lst(markers)
+ })
+ return new SharedTextMarker(markers, primary)
+}
+
+function findSharedMarkers(doc) {
+ return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; })
+}
+
+function copySharedMarkers(doc, markers) {
+ for (var i = 0; i < markers.length; i++) {
+ var marker = markers[i], pos = marker.find()
+ var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to)
+ if (cmp(mFrom, mTo)) {
+ var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type)
+ marker.markers.push(subMark)
+ subMark.parent = marker
+ }
+ }
+}
+
+function detachSharedMarkers(markers) {
+ var loop = function ( i ) {
+ var marker = markers[i], linked = [marker.primary.doc]
+ linkedDocs(marker.primary.doc, function (d) { return linked.push(d); })
+ for (var j = 0; j < marker.markers.length; j++) {
+ var subMarker = marker.markers[j]
+ if (indexOf(linked, subMarker.doc) == -1) {
+ subMarker.parent = null
+ marker.markers.splice(j--, 1)
+ }
+ }
+ };
+
+ for (var i = 0; i < markers.length; i++) loop( i );
+}
+
+var nextDocId = 0
+var Doc = function(text, mode, firstLine, lineSep, direction) {
+ if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) }
+ if (firstLine == null) { firstLine = 0 }
+
+ BranchChunk.call(this, [new LeafChunk([new Line("", null)])])
+ this.first = firstLine
+ this.scrollTop = this.scrollLeft = 0
+ this.cantEdit = false
+ this.cleanGeneration = 1
+ this.modeFrontier = this.highlightFrontier = firstLine
+ var start = Pos(firstLine, 0)
+ this.sel = simpleSelection(start)
+ this.history = new History(null)
+ this.id = ++nextDocId
+ this.modeOption = mode
+ this.lineSep = lineSep
+ this.direction = (direction == "rtl") ? "rtl" : "ltr"
+ this.extend = false
+
+ if (typeof text == "string") { text = this.splitLines(text) }
+ updateDoc(this, {from: start, to: start, text: text})
+ setSelection(this, simpleSelection(start), sel_dontScroll)
+}
+
+Doc.prototype = createObj(BranchChunk.prototype, {
+ constructor: Doc,
+ // Iterate over the document. Supports two forms -- with only one
+ // argument, it calls that for each line in the document. With
+ // three, it iterates over the range given by the first two (with
+ // the second being non-inclusive).
+ iter: function(from, to, op) {
+ if (op) { this.iterN(from - this.first, to - from, op) }
+ else { this.iterN(this.first, this.first + this.size, from) }
+ },
+
+ // Non-public interface for adding and removing lines.
+ insert: function(at, lines) {
+ var height = 0
+ for (var i = 0; i < lines.length; ++i) { height += lines[i].height }
+ this.insertInner(at - this.first, lines, height)
+ },
+ remove: function(at, n) { this.removeInner(at - this.first, n) },
+
+ // From here, the methods are part of the public interface. Most
+ // are also available from CodeMirror (editor) instances.
+
+ getValue: function(lineSep) {
+ var lines = getLines(this, this.first, this.first + this.size)
+ if (lineSep === false) { return lines }
+ return lines.join(lineSep || this.lineSeparator())
+ },
+ setValue: docMethodOp(function(code) {
+ var top = Pos(this.first, 0), last = this.first + this.size - 1
+ makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
+ text: this.splitLines(code), origin: "setValue", full: true}, true)
+ if (this.cm) { scrollToCoords(this.cm, 0, 0) }
+ setSelection(this, simpleSelection(top), sel_dontScroll)
+ }),
+ replaceRange: function(code, from, to, origin) {
+ from = clipPos(this, from)
+ to = to ? clipPos(this, to) : from
+ replaceRange(this, code, from, to, origin)
+ },
+ getRange: function(from, to, lineSep) {
+ var lines = getBetween(this, clipPos(this, from), clipPos(this, to))
+ if (lineSep === false) { return lines }
+ return lines.join(lineSep || this.lineSeparator())
+ },
+
+ getLine: function(line) {var l = this.getLineHandle(line); return l && l.text},
+
+ getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }},
+ getLineNumber: function(line) {return lineNo(line)},
+
+ getLineHandleVisualStart: function(line) {
+ if (typeof line == "number") { line = getLine(this, line) }
+ return visualLine(line)
+ },
+
+ lineCount: function() {return this.size},
+ firstLine: function() {return this.first},
+ lastLine: function() {return this.first + this.size - 1},
+
+ clipPos: function(pos) {return clipPos(this, pos)},
+
+ getCursor: function(start) {
+ var range = this.sel.primary(), pos
+ if (start == null || start == "head") { pos = range.head }
+ else if (start == "anchor") { pos = range.anchor }
+ else if (start == "end" || start == "to" || start === false) { pos = range.to() }
+ else { pos = range.from() }
+ return pos
+ },
+ listSelections: function() { return this.sel.ranges },
+ somethingSelected: function() {return this.sel.somethingSelected()},
+
+ setCursor: docMethodOp(function(line, ch, options) {
+ setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options)
+ }),
+ setSelection: docMethodOp(function(anchor, head, options) {
+ setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options)
+ }),
+ extendSelection: docMethodOp(function(head, other, options) {
+ extendSelection(this, clipPos(this, head), other && clipPos(this, other), options)
+ }),
+ extendSelections: docMethodOp(function(heads, options) {
+ extendSelections(this, clipPosArray(this, heads), options)
+ }),
+ extendSelectionsBy: docMethodOp(function(f, options) {
+ var heads = map(this.sel.ranges, f)
+ extendSelections(this, clipPosArray(this, heads), options)
+ }),
+ setSelections: docMethodOp(function(ranges, primary, options) {
+ var this$1 = this;
+
+ if (!ranges.length) { return }
+ var out = []
+ for (var i = 0; i < ranges.length; i++)
+ { out[i] = new Range(clipPos(this$1, ranges[i].anchor),
+ clipPos(this$1, ranges[i].head)) }
+ if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex) }
+ setSelection(this, normalizeSelection(out, primary), options)
+ }),
+ addSelection: docMethodOp(function(anchor, head, options) {
+ var ranges = this.sel.ranges.slice(0)
+ ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)))
+ setSelection(this, normalizeSelection(ranges, ranges.length - 1), options)
+ }),
+
+ getSelection: function(lineSep) {
+ var this$1 = this;
+
+ var ranges = this.sel.ranges, lines
+ for (var i = 0; i < ranges.length; i++) {
+ var sel = getBetween(this$1, ranges[i].from(), ranges[i].to())
+ lines = lines ? lines.concat(sel) : sel
+ }
+ if (lineSep === false) { return lines }
+ else { return lines.join(lineSep || this.lineSeparator()) }
+ },
+ getSelections: function(lineSep) {
+ var this$1 = this;
+
+ var parts = [], ranges = this.sel.ranges
+ for (var i = 0; i < ranges.length; i++) {
+ var sel = getBetween(this$1, ranges[i].from(), ranges[i].to())
+ if (lineSep !== false) { sel = sel.join(lineSep || this$1.lineSeparator()) }
+ parts[i] = sel
+ }
+ return parts
+ },
+ replaceSelection: function(code, collapse, origin) {
+ var dup = []
+ for (var i = 0; i < this.sel.ranges.length; i++)
+ { dup[i] = code }
+ this.replaceSelections(dup, collapse, origin || "+input")
+ },
+ replaceSelections: docMethodOp(function(code, collapse, origin) {
+ var this$1 = this;
+
+ var changes = [], sel = this.sel
+ for (var i = 0; i < sel.ranges.length; i++) {
+ var range = sel.ranges[i]
+ changes[i] = {from: range.from(), to: range.to(), text: this$1.splitLines(code[i]), origin: origin}
+ }
+ var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse)
+ for (var i$1 = changes.length - 1; i$1 >= 0; i$1--)
+ { makeChange(this$1, changes[i$1]) }
+ if (newSel) { setSelectionReplaceHistory(this, newSel) }
+ else if (this.cm) { ensureCursorVisible(this.cm) }
+ }),
+ undo: docMethodOp(function() {makeChangeFromHistory(this, "undo")}),
+ redo: docMethodOp(function() {makeChangeFromHistory(this, "redo")}),
+ undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true)}),
+ redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true)}),
+
+ setExtending: function(val) {this.extend = val},
+ getExtending: function() {return this.extend},
+
+ historySize: function() {
+ var hist = this.history, done = 0, undone = 0
+ for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done } }
+ for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone } }
+ return {undo: done, redo: undone}
+ },
+ clearHistory: function() {this.history = new History(this.history.maxGeneration)},
+
+ markClean: function() {
+ this.cleanGeneration = this.changeGeneration(true)
+ },
+ changeGeneration: function(forceSplit) {
+ if (forceSplit)
+ { this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null }
+ return this.history.generation
+ },
+ isClean: function (gen) {
+ return this.history.generation == (gen || this.cleanGeneration)
+ },
+
+ getHistory: function() {
+ return {done: copyHistoryArray(this.history.done),
+ undone: copyHistoryArray(this.history.undone)}
+ },
+ setHistory: function(histData) {
+ var hist = this.history = new History(this.history.maxGeneration)
+ hist.done = copyHistoryArray(histData.done.slice(0), null, true)
+ hist.undone = copyHistoryArray(histData.undone.slice(0), null, true)
+ },
+
+ setGutterMarker: docMethodOp(function(line, gutterID, value) {
+ return changeLine(this, line, "gutter", function (line) {
+ var markers = line.gutterMarkers || (line.gutterMarkers = {})
+ markers[gutterID] = value
+ if (!value && isEmpty(markers)) { line.gutterMarkers = null }
+ return true
+ })
+ }),
+
+ clearGutter: docMethodOp(function(gutterID) {
+ var this$1 = this;
+
+ this.iter(function (line) {
+ if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
+ changeLine(this$1, line, "gutter", function () {
+ line.gutterMarkers[gutterID] = null
+ if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null }
+ return true
+ })
+ }
+ })
+ }),
+
+ lineInfo: function(line) {
+ var n
+ if (typeof line == "number") {
+ if (!isLine(this, line)) { return null }
+ n = line
+ line = getLine(this, line)
+ if (!line) { return null }
+ } else {
+ n = lineNo(line)
+ if (n == null) { return null }
+ }
+ return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
+ textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
+ widgets: line.widgets}
+ },
+
+ addLineClass: docMethodOp(function(handle, where, cls) {
+ return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
+ var prop = where == "text" ? "textClass"
+ : where == "background" ? "bgClass"
+ : where == "gutter" ? "gutterClass" : "wrapClass"
+ if (!line[prop]) { line[prop] = cls }
+ else if (classTest(cls).test(line[prop])) { return false }
+ else { line[prop] += " " + cls }
+ return true
+ })
+ }),
+ removeLineClass: docMethodOp(function(handle, where, cls) {
+ return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
+ var prop = where == "text" ? "textClass"
+ : where == "background" ? "bgClass"
+ : where == "gutter" ? "gutterClass" : "wrapClass"
+ var cur = line[prop]
+ if (!cur) { return false }
+ else if (cls == null) { line[prop] = null }
+ else {
+ var found = cur.match(classTest(cls))
+ if (!found) { return false }
+ var end = found.index + found[0].length
+ line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null
+ }
+ return true
+ })
+ }),
+
+ addLineWidget: docMethodOp(function(handle, node, options) {
+ return addLineWidget(this, handle, node, options)
+ }),
+ removeLineWidget: function(widget) { widget.clear() },
+
+ markText: function(from, to, options) {
+ return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range")
+ },
+ setBookmark: function(pos, options) {
+ var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
+ insertLeft: options && options.insertLeft,
+ clearWhenEmpty: false, shared: options && options.shared,
+ handleMouseEvents: options && options.handleMouseEvents}
+ pos = clipPos(this, pos)
+ return markText(this, pos, pos, realOpts, "bookmark")
+ },
+ findMarksAt: function(pos) {
+ pos = clipPos(this, pos)
+ var markers = [], spans = getLine(this, pos.line).markedSpans
+ if (spans) { for (var i = 0; i < spans.length; ++i) {
+ var span = spans[i]
+ if ((span.from == null || span.from <= pos.ch) &&
+ (span.to == null || span.to >= pos.ch))
+ { markers.push(span.marker.parent || span.marker) }
+ } }
+ return markers
+ },
+ findMarks: function(from, to, filter) {
+ from = clipPos(this, from); to = clipPos(this, to)
+ var found = [], lineNo = from.line
+ this.iter(from.line, to.line + 1, function (line) {
+ var spans = line.markedSpans
+ if (spans) { for (var i = 0; i < spans.length; i++) {
+ var span = spans[i]
+ if (!(span.to != null && lineNo == from.line && from.ch >= span.to ||
+ span.from == null && lineNo != from.line ||
+ span.from != null && lineNo == to.line && span.from >= to.ch) &&
+ (!filter || filter(span.marker)))
+ { found.push(span.marker.parent || span.marker) }
+ } }
+ ++lineNo
+ })
+ return found
+ },
+ getAllMarks: function() {
+ var markers = []
+ this.iter(function (line) {
+ var sps = line.markedSpans
+ if (sps) { for (var i = 0; i < sps.length; ++i)
+ { if (sps[i].from != null) { markers.push(sps[i].marker) } } }
+ })
+ return markers
+ },
+
+ posFromIndex: function(off) {
+ var ch, lineNo = this.first, sepSize = this.lineSeparator().length
+ this.iter(function (line) {
+ var sz = line.text.length + sepSize
+ if (sz > off) { ch = off; return true }
+ off -= sz
+ ++lineNo
+ })
+ return clipPos(this, Pos(lineNo, ch))
+ },
+ indexFromPos: function (coords) {
+ coords = clipPos(this, coords)
+ var index = coords.ch
+ if (coords.line < this.first || coords.ch < 0) { return 0 }
+ var sepSize = this.lineSeparator().length
+ this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value
+ index += line.text.length + sepSize
+ })
+ return index
+ },
+
+ copy: function(copyHistory) {
+ var doc = new Doc(getLines(this, this.first, this.first + this.size),
+ this.modeOption, this.first, this.lineSep, this.direction)
+ doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft
+ doc.sel = this.sel
+ doc.extend = false
+ if (copyHistory) {
+ doc.history.undoDepth = this.history.undoDepth
+ doc.setHistory(this.getHistory())
+ }
+ return doc
+ },
+
+ linkedDoc: function(options) {
+ if (!options) { options = {} }
+ var from = this.first, to = this.first + this.size
+ if (options.from != null && options.from > from) { from = options.from }
+ if (options.to != null && options.to < to) { to = options.to }
+ var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction)
+ if (options.sharedHist) { copy.history = this.history
+ ; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist})
+ copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}]
+ copySharedMarkers(copy, findSharedMarkers(this))
+ return copy
+ },
+ unlinkDoc: function(other) {
+ var this$1 = this;
+
+ if (other instanceof CodeMirror) { other = other.doc }
+ if (this.linked) { for (var i = 0; i < this.linked.length; ++i) {
+ var link = this$1.linked[i]
+ if (link.doc != other) { continue }
+ this$1.linked.splice(i, 1)
+ other.unlinkDoc(this$1)
+ detachSharedMarkers(findSharedMarkers(this$1))
+ break
+ } }
+ // If the histories were shared, split them again
+ if (other.history == this.history) {
+ var splitIds = [other.id]
+ linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true)
+ other.history = new History(null)
+ other.history.done = copyHistoryArray(this.history.done, splitIds)
+ other.history.undone = copyHistoryArray(this.history.undone, splitIds)
+ }
+ },
+ iterLinkedDocs: function(f) {linkedDocs(this, f)},
+
+ getMode: function() {return this.mode},
+ getEditor: function() {return this.cm},
+
+ splitLines: function(str) {
+ if (this.lineSep) { return str.split(this.lineSep) }
+ return splitLinesAuto(str)
+ },
+ lineSeparator: function() { return this.lineSep || "\n" },
+
+ setDirection: docMethodOp(function (dir) {
+ if (dir != "rtl") { dir = "ltr" }
+ if (dir == this.direction) { return }
+ this.direction = dir
+ this.iter(function (line) { return line.order = null; })
+ if (this.cm) { directionChanged(this.cm) }
+ })
+})
+
+// Public alias.
+Doc.prototype.eachLine = Doc.prototype.iter
+
+// Kludge to work around strange IE behavior where it'll sometimes
+// re-fire a series of drag-related events right after the drop (#1551)
+var lastDrop = 0
+
+function onDrop(e) {
+ var cm = this
+ clearDragCursor(cm)
+ if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
+ { return }
+ e_preventDefault(e)
+ if (ie) { lastDrop = +new Date }
+ var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files
+ if (!pos || cm.isReadOnly()) { return }
+ // Might be a file drop, in which case we simply extract the text
+ // and insert it.
+ if (files && files.length && window.FileReader && window.File) {
+ var n = files.length, text = Array(n), read = 0
+ var loadFile = function (file, i) {
+ if (cm.options.allowDropFileTypes &&
+ indexOf(cm.options.allowDropFileTypes, file.type) == -1)
+ { return }
+
+ var reader = new FileReader
+ reader.onload = operation(cm, function () {
+ var content = reader.result
+ if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) { content = "" }
+ text[i] = content
+ if (++read == n) {
+ pos = clipPos(cm.doc, pos)
+ var change = {from: pos, to: pos,
+ text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())),
+ origin: "paste"}
+ makeChange(cm.doc, change)
+ setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)))
+ }
+ })
+ reader.readAsText(file)
+ }
+ for (var i = 0; i < n; ++i) { loadFile(files[i], i) }
+ } else { // Normal drop
+ // Don't do a replace if the drop happened inside of the selected text.
+ if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
+ cm.state.draggingText(e)
+ // Ensure the editor is re-focused
+ setTimeout(function () { return cm.display.input.focus(); }, 20)
+ return
+ }
+ try {
+ var text$1 = e.dataTransfer.getData("Text")
+ if (text$1) {
+ var selected
+ if (cm.state.draggingText && !cm.state.draggingText.copy)
+ { selected = cm.listSelections() }
+ setSelectionNoUndo(cm.doc, simpleSelection(pos, pos))
+ if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1)
+ { replaceRange(cm.doc, "", selected[i$1].anchor, selected[i$1].head, "drag") } }
+ cm.replaceSelection(text$1, "around", "paste")
+ cm.display.input.focus()
+ }
+ }
+ catch(e){}
+ }
+}
+
+function onDragStart(cm, e) {
+ if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return }
+ if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return }
+
+ e.dataTransfer.setData("Text", cm.getSelection())
+ e.dataTransfer.effectAllowed = "copyMove"
+
+ // Use dummy image instead of default browsers image.
+ // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
+ if (e.dataTransfer.setDragImage && !safari) {
+ var img = elt("img", null, null, "position: fixed; left: 0; top: 0;")
+ img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="
+ if (presto) {
+ img.width = img.height = 1
+ cm.display.wrapper.appendChild(img)
+ // Force a relayout, or Opera won't use our image for some obscure reason
+ img._top = img.offsetTop
+ }
+ e.dataTransfer.setDragImage(img, 0, 0)
+ if (presto) { img.parentNode.removeChild(img) }
+ }
+}
+
+function onDragOver(cm, e) {
+ var pos = posFromMouse(cm, e)
+ if (!pos) { return }
+ var frag = document.createDocumentFragment()
+ drawSelectionCursor(cm, pos, frag)
+ if (!cm.display.dragCursor) {
+ cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors")
+ cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv)
+ }
+ removeChildrenAndAdd(cm.display.dragCursor, frag)
+}
+
+function clearDragCursor(cm) {
+ if (cm.display.dragCursor) {
+ cm.display.lineSpace.removeChild(cm.display.dragCursor)
+ cm.display.dragCursor = null
+ }
+}
+
+// These must be handled carefully, because naively registering a
+// handler for each editor will cause the editors to never be
+// garbage collected.
+
+function forEachCodeMirror(f) {
+ if (!document.getElementsByClassName) { return }
+ var byClass = document.getElementsByClassName("CodeMirror")
+ for (var i = 0; i < byClass.length; i++) {
+ var cm = byClass[i].CodeMirror
+ if (cm) { f(cm) }
+ }
+}
+
+var globalsRegistered = false
+function ensureGlobalHandlers() {
+ if (globalsRegistered) { return }
+ registerGlobalHandlers()
+ globalsRegistered = true
+}
+function registerGlobalHandlers() {
+ // When the window resizes, we need to refresh active editors.
+ var resizeTimer
+ on(window, "resize", function () {
+ if (resizeTimer == null) { resizeTimer = setTimeout(function () {
+ resizeTimer = null
+ forEachCodeMirror(onResize)
+ }, 100) }
+ })
+ // When the window loses focus, we want to show the editor as blurred
+ on(window, "blur", function () { return forEachCodeMirror(onBlur); })
+}
+// Called when the window resizes
+function onResize(cm) {
+ var d = cm.display
+ if (d.lastWrapHeight == d.wrapper.clientHeight && d.lastWrapWidth == d.wrapper.clientWidth)
+ { return }
+ // Might be a text scaling operation, clear size caches.
+ d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null
+ d.scrollbarsClipped = false
+ cm.setSize()
+}
+
+var keyNames = {
+ 3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
+ 19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
+ 36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
+ 46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod",
+ 106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 127: "Delete",
+ 173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
+ 221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
+ 63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"
+}
+
+// Number keys
+for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i) }
+// Alphabetic keys
+for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1) }
+// Function keys
+for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = "F" + i$2 }
+
+var keyMap = {}
+
+keyMap.basic = {
+ "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
+ "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
+ "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
+ "Tab": "defaultTab", "Shift-Tab": "indentAuto",
+ "Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
+ "Esc": "singleSelection"
+}
+// Note that the save and find-related commands aren't defined by
+// default. User code or addons can define them. Unknown commands
+// are simply ignored.
+keyMap.pcDefault = {
+ "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
+ "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
+ "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
+ "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
+ "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
+ "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
+ "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
+ fallthrough: "basic"
+}
+// Very basic readline/emacs-style bindings, which are standard on Mac.
+keyMap.emacsy = {
+ "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
+ "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
+ "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
+ "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars",
+ "Ctrl-O": "openLine"
+}
+keyMap.macDefault = {
+ "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
+ "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
+ "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
+ "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
+ "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
+ "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
+ "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
+ fallthrough: ["basic", "emacsy"]
+}
+keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault
+
+// KEYMAP DISPATCH
+
+function normalizeKeyName(name) {
+ var parts = name.split(/-(?!$)/)
+ name = parts[parts.length - 1]
+ var alt, ctrl, shift, cmd
+ for (var i = 0; i < parts.length - 1; i++) {
+ var mod = parts[i]
+ if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true }
+ else if (/^a(lt)?$/i.test(mod)) { alt = true }
+ else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true }
+ else if (/^s(hift)?$/i.test(mod)) { shift = true }
+ else { throw new Error("Unrecognized modifier name: " + mod) }
+ }
+ if (alt) { name = "Alt-" + name }
+ if (ctrl) { name = "Ctrl-" + name }
+ if (cmd) { name = "Cmd-" + name }
+ if (shift) { name = "Shift-" + name }
+ return name
+}
+
+// This is a kludge to keep keymaps mostly working as raw objects
+// (backwards compatibility) while at the same time support features
+// like normalization and multi-stroke key bindings. It compiles a
+// new normalized keymap, and then updates the old object to reflect
+// this.
+function normalizeKeyMap(keymap) {
+ var copy = {}
+ for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) {
+ var value = keymap[keyname]
+ if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue }
+ if (value == "...") { delete keymap[keyname]; continue }
+
+ var keys = map(keyname.split(" "), normalizeKeyName)
+ for (var i = 0; i < keys.length; i++) {
+ var val = (void 0), name = (void 0)
+ if (i == keys.length - 1) {
+ name = keys.join(" ")
+ val = value
+ } else {
+ name = keys.slice(0, i + 1).join(" ")
+ val = "..."
+ }
+ var prev = copy[name]
+ if (!prev) { copy[name] = val }
+ else if (prev != val) { throw new Error("Inconsistent bindings for " + name) }
+ }
+ delete keymap[keyname]
+ } }
+ for (var prop in copy) { keymap[prop] = copy[prop] }
+ return keymap
+}
+
+function lookupKey(key, map, handle, context) {
+ map = getKeyMap(map)
+ var found = map.call ? map.call(key, context) : map[key]
+ if (found === false) { return "nothing" }
+ if (found === "...") { return "multi" }
+ if (found != null && handle(found)) { return "handled" }
+
+ if (map.fallthrough) {
+ if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
+ { return lookupKey(key, map.fallthrough, handle, context) }
+ for (var i = 0; i < map.fallthrough.length; i++) {
+ var result = lookupKey(key, map.fallthrough[i], handle, context)
+ if (result) { return result }
+ }
+ }
+}
+
+// Modifier key presses don't count as 'real' key presses for the
+// purpose of keymap fallthrough.
+function isModifierKey(value) {
+ var name = typeof value == "string" ? value : keyNames[value.keyCode]
+ return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"
+}
+
+function addModifierNames(name, event, noShift) {
+ var base = name
+ if (event.altKey && base != "Alt") { name = "Alt-" + name }
+ if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") { name = "Ctrl-" + name }
+ if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") { name = "Cmd-" + name }
+ if (!noShift && event.shiftKey && base != "Shift") { name = "Shift-" + name }
+ return name
+}
+
+// Look up the name of a key as indicated by an event object.
+function keyName(event, noShift) {
+ if (presto && event.keyCode == 34 && event["char"]) { return false }
+ var name = keyNames[event.keyCode]
+ if (name == null || event.altGraphKey) { return false }
+ return addModifierNames(name, event, noShift)
+}
+
+function getKeyMap(val) {
+ return typeof val == "string" ? keyMap[val] : val
+}
+
+// Helper for deleting text near the selection(s), used to implement
+// backspace, delete, and similar functionality.
+function deleteNearSelection(cm, compute) {
+ var ranges = cm.doc.sel.ranges, kill = []
+ // Build up a set of ranges to kill first, merging overlapping
+ // ranges.
+ for (var i = 0; i < ranges.length; i++) {
+ var toKill = compute(ranges[i])
+ while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
+ var replaced = kill.pop()
+ if (cmp(replaced.from, toKill.from) < 0) {
+ toKill.from = replaced.from
+ break
+ }
+ }
+ kill.push(toKill)
+ }
+ // Next, remove those actual ranges.
+ runInOp(cm, function () {
+ for (var i = kill.length - 1; i >= 0; i--)
+ { replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete") }
+ ensureCursorVisible(cm)
+ })
+}
+
+function moveCharLogically(line, ch, dir) {
+ var target = skipExtendingChars(line.text, ch + dir, dir)
+ return target < 0 || target > line.text.length ? null : target
+}
+
+function moveLogically(line, start, dir) {
+ var ch = moveCharLogically(line, start.ch, dir)
+ return ch == null ? null : new Pos(start.line, ch, dir < 0 ? "after" : "before")
+}
+
+function endOfLine(visually, cm, lineObj, lineNo, dir) {
+ if (visually) {
+ var order = getOrder(lineObj, cm.doc.direction)
+ if (order) {
+ var part = dir < 0 ? lst(order) : order[0]
+ var moveInStorageOrder = (dir < 0) == (part.level == 1)
+ var sticky = moveInStorageOrder ? "after" : "before"
+ var ch
+ // With a wrapped rtl chunk (possibly spanning multiple bidi parts),
+ // it could be that the last bidi part is not on the last visual line,
+ // since visual lines contain content order-consecutive chunks.
+ // Thus, in rtl, we are looking for the first (content-order) character
+ // in the rtl chunk that is on the last line (that is, the same line
+ // as the last (content-order) character).
+ if (part.level > 0) {
+ var prep = prepareMeasureForLine(cm, lineObj)
+ ch = dir < 0 ? lineObj.text.length - 1 : 0
+ var targetTop = measureCharPrepared(cm, prep, ch).top
+ ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch)
+ if (sticky == "before") { ch = moveCharLogically(lineObj, ch, 1) }
+ } else { ch = dir < 0 ? part.to : part.from }
+ return new Pos(lineNo, ch, sticky)
+ }
+ }
+ return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? "before" : "after")
+}
+
+function moveVisually(cm, line, start, dir) {
+ var bidi = getOrder(line, cm.doc.direction)
+ if (!bidi) { return moveLogically(line, start, dir) }
+ if (start.ch >= line.text.length) {
+ start.ch = line.text.length
+ start.sticky = "before"
+ } else if (start.ch <= 0) {
+ start.ch = 0
+ start.sticky = "after"
+ }
+ var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos]
+ if (cm.doc.direction == "ltr" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) {
+ // Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines,
+ // nothing interesting happens.
+ return moveLogically(line, start, dir)
+ }
+
+ var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); }
+ var prep
+ var getWrappedLineExtent = function (ch) {
+ if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} }
+ prep = prep || prepareMeasureForLine(cm, line)
+ return wrappedLineExtentChar(cm, line, prep, ch)
+ }
+ var wrappedLineExtent = getWrappedLineExtent(start.sticky == "before" ? mv(start, -1) : start.ch)
+
+ if (cm.doc.direction == "rtl" || part.level == 1) {
+ var moveInStorageOrder = (part.level == 1) == (dir < 0)
+ var ch = mv(start, moveInStorageOrder ? 1 : -1)
+ if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) {
+ // Case 2: We move within an rtl part or in an rtl editor on the same visual line
+ var sticky = moveInStorageOrder ? "before" : "after"
+ return new Pos(start.line, ch, sticky)
+ }
+ }
+
+ // Case 3: Could not move within this bidi part in this visual line, so leave
+ // the current bidi part
+
+ var searchInVisualLine = function (partPos, dir, wrappedLineExtent) {
+ var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder
+ ? new Pos(start.line, mv(ch, 1), "before")
+ : new Pos(start.line, ch, "after"); }
+
+ for (; partPos >= 0 && partPos < bidi.length; partPos += dir) {
+ var part = bidi[partPos]
+ var moveInStorageOrder = (dir > 0) == (part.level != 1)
+ var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1)
+ if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) }
+ ch = moveInStorageOrder ? part.from : mv(part.to, -1)
+ if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) }
+ }
+ }
+
+ // Case 3a: Look for other bidi parts on the same visual line
+ var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent)
+ if (res) { return res }
+
+ // Case 3b: Look for other bidi parts on the next visual line
+ var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1)
+ if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) {
+ res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh))
+ if (res) { return res }
+ }
+
+ // Case 4: Nowhere to move
+ return null
+}
+
+// Commands are parameter-less actions that can be performed on an
+// editor, mostly used for keybindings.
+var commands = {
+ selectAll: selectAll,
+ singleSelection: function (cm) { return cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); },
+ killLine: function (cm) { return deleteNearSelection(cm, function (range) {
+ if (range.empty()) {
+ var len = getLine(cm.doc, range.head.line).text.length
+ if (range.head.ch == len && range.head.line < cm.lastLine())
+ { return {from: range.head, to: Pos(range.head.line + 1, 0)} }
+ else
+ { return {from: range.head, to: Pos(range.head.line, len)} }
+ } else {
+ return {from: range.from(), to: range.to()}
+ }
+ }); },
+ deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({
+ from: Pos(range.from().line, 0),
+ to: clipPos(cm.doc, Pos(range.to().line + 1, 0))
+ }); }); },
+ delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({
+ from: Pos(range.from().line, 0), to: range.from()
+ }); }); },
+ delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) {
+ var top = cm.charCoords(range.head, "div").top + 5
+ var leftPos = cm.coordsChar({left: 0, top: top}, "div")
+ return {from: leftPos, to: range.from()}
+ }); },
+ delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) {
+ var top = cm.charCoords(range.head, "div").top + 5
+ var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")
+ return {from: range.from(), to: rightPos }
+ }); },
+ undo: function (cm) { return cm.undo(); },
+ redo: function (cm) { return cm.redo(); },
+ undoSelection: function (cm) { return cm.undoSelection(); },
+ redoSelection: function (cm) { return cm.redoSelection(); },
+ goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); },
+ goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); },
+ goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); },
+ {origin: "+move", bias: 1}
+ ); },
+ goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); },
+ {origin: "+move", bias: 1}
+ ); },
+ goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); },
+ {origin: "+move", bias: -1}
+ ); },
+ goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) {
+ var top = cm.cursorCoords(range.head, "div").top + 5
+ return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")
+ }, sel_move); },
+ goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) {
+ var top = cm.cursorCoords(range.head, "div").top + 5
+ return cm.coordsChar({left: 0, top: top}, "div")
+ }, sel_move); },
+ goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) {
+ var top = cm.cursorCoords(range.head, "div").top + 5
+ var pos = cm.coordsChar({left: 0, top: top}, "div")
+ if (pos.ch < cm.getLine(pos.line).search(/\S/)) { return lineStartSmart(cm, range.head) }
+ return pos
+ }, sel_move); },
+ goLineUp: function (cm) { return cm.moveV(-1, "line"); },
+ goLineDown: function (cm) { return cm.moveV(1, "line"); },
+ goPageUp: function (cm) { return cm.moveV(-1, "page"); },
+ goPageDown: function (cm) { return cm.moveV(1, "page"); },
+ goCharLeft: function (cm) { return cm.moveH(-1, "char"); },
+ goCharRight: function (cm) { return cm.moveH(1, "char"); },
+ goColumnLeft: function (cm) { return cm.moveH(-1, "column"); },
+ goColumnRight: function (cm) { return cm.moveH(1, "column"); },
+ goWordLeft: function (cm) { return cm.moveH(-1, "word"); },
+ goGroupRight: function (cm) { return cm.moveH(1, "group"); },
+ goGroupLeft: function (cm) { return cm.moveH(-1, "group"); },
+ goWordRight: function (cm) { return cm.moveH(1, "word"); },
+ delCharBefore: function (cm) { return cm.deleteH(-1, "char"); },
+ delCharAfter: function (cm) { return cm.deleteH(1, "char"); },
+ delWordBefore: function (cm) { return cm.deleteH(-1, "word"); },
+ delWordAfter: function (cm) { return cm.deleteH(1, "word"); },
+ delGroupBefore: function (cm) { return cm.deleteH(-1, "group"); },
+ delGroupAfter: function (cm) { return cm.deleteH(1, "group"); },
+ indentAuto: function (cm) { return cm.indentSelection("smart"); },
+ indentMore: function (cm) { return cm.indentSelection("add"); },
+ indentLess: function (cm) { return cm.indentSelection("subtract"); },
+ insertTab: function (cm) { return cm.replaceSelection("\t"); },
+ insertSoftTab: function (cm) {
+ var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize
+ for (var i = 0; i < ranges.length; i++) {
+ var pos = ranges[i].from()
+ var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize)
+ spaces.push(spaceStr(tabSize - col % tabSize))
+ }
+ cm.replaceSelections(spaces)
+ },
+ defaultTab: function (cm) {
+ if (cm.somethingSelected()) { cm.indentSelection("add") }
+ else { cm.execCommand("insertTab") }
+ },
+ // Swap the two chars left and right of each selection's head.
+ // Move cursor behind the two swapped characters afterwards.
+ //
+ // Doesn't consider line feeds a character.
+ // Doesn't scan more than one line above to find a character.
+ // Doesn't do anything on an empty line.
+ // Doesn't do anything with non-empty selections.
+ transposeChars: function (cm) { return runInOp(cm, function () {
+ var ranges = cm.listSelections(), newSel = []
+ for (var i = 0; i < ranges.length; i++) {
+ if (!ranges[i].empty()) { continue }
+ var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text
+ if (line) {
+ if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1) }
+ if (cur.ch > 0) {
+ cur = new Pos(cur.line, cur.ch + 1)
+ cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
+ Pos(cur.line, cur.ch - 2), cur, "+transpose")
+ } else if (cur.line > cm.doc.first) {
+ var prev = getLine(cm.doc, cur.line - 1).text
+ if (prev) {
+ cur = new Pos(cur.line, 1)
+ cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +
+ prev.charAt(prev.length - 1),
+ Pos(cur.line - 1, prev.length - 1), cur, "+transpose")
+ }
+ }
+ }
+ newSel.push(new Range(cur, cur))
+ }
+ cm.setSelections(newSel)
+ }); },
+ newlineAndIndent: function (cm) { return runInOp(cm, function () {
+ var sels = cm.listSelections()
+ for (var i = sels.length - 1; i >= 0; i--)
+ { cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, "+input") }
+ sels = cm.listSelections()
+ for (var i$1 = 0; i$1 < sels.length; i$1++)
+ { cm.indentLine(sels[i$1].from().line, null, true) }
+ ensureCursorVisible(cm)
+ }); },
+ openLine: function (cm) { return cm.replaceSelection("\n", "start"); },
+ toggleOverwrite: function (cm) { return cm.toggleOverwrite(); }
+}
+
+
+function lineStart(cm, lineN) {
+ var line = getLine(cm.doc, lineN)
+ var visual = visualLine(line)
+ if (visual != line) { lineN = lineNo(visual) }
+ return endOfLine(true, cm, visual, lineN, 1)
+}
+function lineEnd(cm, lineN) {
+ var line = getLine(cm.doc, lineN)
+ var visual = visualLineEnd(line)
+ if (visual != line) { lineN = lineNo(visual) }
+ return endOfLine(true, cm, line, lineN, -1)
+}
+function lineStartSmart(cm, pos) {
+ var start = lineStart(cm, pos.line)
+ var line = getLine(cm.doc, start.line)
+ var order = getOrder(line, cm.doc.direction)
+ if (!order || order[0].level == 0) {
+ var firstNonWS = Math.max(0, line.text.search(/\S/))
+ var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch
+ return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky)
+ }
+ return start
+}
+
+// Run a handler that was bound to a key.
+function doHandleBinding(cm, bound, dropShift) {
+ if (typeof bound == "string") {
+ bound = commands[bound]
+ if (!bound) { return false }
+ }
+ // Ensure previous input has been read, so that the handler sees a
+ // consistent view of the document
+ cm.display.input.ensurePolled()
+ var prevShift = cm.display.shift, done = false
+ try {
+ if (cm.isReadOnly()) { cm.state.suppressEdits = true }
+ if (dropShift) { cm.display.shift = false }
+ done = bound(cm) != Pass
+ } finally {
+ cm.display.shift = prevShift
+ cm.state.suppressEdits = false
+ }
+ return done
+}
+
+function lookupKeyForEditor(cm, name, handle) {
+ for (var i = 0; i < cm.state.keyMaps.length; i++) {
+ var result = lookupKey(name, cm.state.keyMaps[i], handle, cm)
+ if (result) { return result }
+ }
+ return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))
+ || lookupKey(name, cm.options.keyMap, handle, cm)
+}
+
+// Note that, despite the name, this function is also used to check
+// for bound mouse clicks.
+
+var stopSeq = new Delayed
+function dispatchKey(cm, name, e, handle) {
+ var seq = cm.state.keySeq
+ if (seq) {
+ if (isModifierKey(name)) { return "handled" }
+ stopSeq.set(50, function () {
+ if (cm.state.keySeq == seq) {
+ cm.state.keySeq = null
+ cm.display.input.reset()
+ }
+ })
+ name = seq + " " + name
+ }
+ var result = lookupKeyForEditor(cm, name, handle)
+
+ if (result == "multi")
+ { cm.state.keySeq = name }
+ if (result == "handled")
+ { signalLater(cm, "keyHandled", cm, name, e) }
+
+ if (result == "handled" || result == "multi") {
+ e_preventDefault(e)
+ restartBlink(cm)
+ }
+
+ if (seq && !result && /\'$/.test(name)) {
+ e_preventDefault(e)
+ return true
+ }
+ return !!result
+}
+
+// Handle a key from the keydown event.
+function handleKeyBinding(cm, e) {
+ var name = keyName(e, true)
+ if (!name) { return false }
+
+ if (e.shiftKey && !cm.state.keySeq) {
+ // First try to resolve full name (including 'Shift-'). Failing
+ // that, see if there is a cursor-motion command (starting with
+ // 'go') bound to the keyname without 'Shift-'.
+ return dispatchKey(cm, "Shift-" + name, e, function (b) { return doHandleBinding(cm, b, true); })
+ || dispatchKey(cm, name, e, function (b) {
+ if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
+ { return doHandleBinding(cm, b) }
+ })
+ } else {
+ return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); })
+ }
+}
+
+// Handle a key from the keypress event
+function handleCharBinding(cm, e, ch) {
+ return dispatchKey(cm, "'" + ch + "'", e, function (b) { return doHandleBinding(cm, b, true); })
+}
+
+var lastStoppedKey = null
+function onKeyDown(e) {
+ var cm = this
+ cm.curOp.focus = activeElt()
+ if (signalDOMEvent(cm, e)) { return }
+ // IE does strange things with escape.
+ if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false }
+ var code = e.keyCode
+ cm.display.shift = code == 16 || e.shiftKey
+ var handled = handleKeyBinding(cm, e)
+ if (presto) {
+ lastStoppedKey = handled ? code : null
+ // Opera has no cut event... we try to at least catch the key combo
+ if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
+ { cm.replaceSelection("", null, "cut") }
+ }
+
+ // Turn mouse into crosshair when Alt is held on Mac.
+ if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
+ { showCrossHair(cm) }
+}
+
+function showCrossHair(cm) {
+ var lineDiv = cm.display.lineDiv
+ addClass(lineDiv, "CodeMirror-crosshair")
+
+ function up(e) {
+ if (e.keyCode == 18 || !e.altKey) {
+ rmClass(lineDiv, "CodeMirror-crosshair")
+ off(document, "keyup", up)
+ off(document, "mouseover", up)
+ }
+ }
+ on(document, "keyup", up)
+ on(document, "mouseover", up)
+}
+
+function onKeyUp(e) {
+ if (e.keyCode == 16) { this.doc.sel.shift = false }
+ signalDOMEvent(this, e)
+}
+
+function onKeyPress(e) {
+ var cm = this
+ if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return }
+ var keyCode = e.keyCode, charCode = e.charCode
+ if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return}
+ if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return }
+ var ch = String.fromCharCode(charCode == null ? keyCode : charCode)
+ // Some browsers fire keypress events for backspace
+ if (ch == "\x08") { return }
+ if (handleCharBinding(cm, e, ch)) { return }
+ cm.display.input.onKeyPress(e)
+}
+
+var DOUBLECLICK_DELAY = 400
+
+var PastClick = function(time, pos, button) {
+ this.time = time
+ this.pos = pos
+ this.button = button
+};
+
+PastClick.prototype.compare = function (time, pos, button) {
+ return this.time + DOUBLECLICK_DELAY > time &&
+ cmp(pos, this.pos) == 0 && button == this.button
+};
+
+var lastClick;
+var lastDoubleClick;
+function clickRepeat(pos, button) {
+ var now = +new Date
+ if (lastDoubleClick && lastDoubleClick.compare(now, pos, button)) {
+ lastClick = lastDoubleClick = null
+ return "triple"
+ } else if (lastClick && lastClick.compare(now, pos, button)) {
+ lastDoubleClick = new PastClick(now, pos, button)
+ lastClick = null
+ return "double"
+ } else {
+ lastClick = new PastClick(now, pos, button)
+ lastDoubleClick = null
+ return "single"
+ }
+}
+
+// A mouse down can be a single click, double click, triple click,
+// start of selection drag, start of text drag, new cursor
+// (ctrl-click), rectangle drag (alt-drag), or xwin
+// middle-click-paste. Or it might be a click on something we should
+// not interfere with, such as a scrollbar or widget.
+function onMouseDown(e) {
+ var cm = this, display = cm.display
+ if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return }
+ display.input.ensurePolled()
+ display.shift = e.shiftKey
+
+ if (eventInWidget(display, e)) {
+ if (!webkit) {
+ // Briefly turn off draggability, to allow widgets to do
+ // normal dragging things.
+ display.scroller.draggable = false
+ setTimeout(function () { return display.scroller.draggable = true; }, 100)
+ }
+ return
+ }
+ if (clickInGutter(cm, e)) { return }
+ var pos = posFromMouse(cm, e), button = e_button(e), repeat = pos ? clickRepeat(pos, button) : "single"
+ window.focus()
+
+ // #3261: make sure, that we're not starting a second selection
+ if (button == 1 && cm.state.selectingText)
+ { cm.state.selectingText(e) }
+
+ if (pos && handleMappedButton(cm, button, pos, repeat, e)) { return }
+
+ if (button == 1) {
+ if (pos) { leftButtonDown(cm, pos, repeat, e) }
+ else if (e_target(e) == display.scroller) { e_preventDefault(e) }
+ } else if (button == 2) {
+ if (pos) { extendSelection(cm.doc, pos) }
+ setTimeout(function () { return display.input.focus(); }, 20)
+ } else if (button == 3) {
+ if (captureRightClick) { onContextMenu(cm, e) }
+ else { delayBlurEvent(cm) }
+ }
+}
+
+function handleMappedButton(cm, button, pos, repeat, event) {
+ var name = "Click"
+ if (repeat == "double") { name = "Double" + name }
+ else if (repeat == "triple") { name = "Triple" + name }
+ name = (button == 1 ? "Left" : button == 2 ? "Middle" : "Right") + name
+
+ return dispatchKey(cm, addModifierNames(name, event), event, function (bound) {
+ if (typeof bound == "string") { bound = commands[bound] }
+ if (!bound) { return false }
+ var done = false
+ try {
+ if (cm.isReadOnly()) { cm.state.suppressEdits = true }
+ done = bound(cm, pos) != Pass
+ } finally {
+ cm.state.suppressEdits = false
+ }
+ return done
+ })
+}
+
+function configureMouse(cm, repeat, event) {
+ var option = cm.getOption("configureMouse")
+ var value = option ? option(cm, repeat, event) : {}
+ if (value.unit == null) {
+ var rect = chromeOS ? event.shiftKey && event.metaKey : event.altKey
+ value.unit = rect ? "rectangle" : repeat == "single" ? "char" : repeat == "double" ? "word" : "line"
+ }
+ if (value.extend == null || cm.doc.extend) { value.extend = cm.doc.extend || event.shiftKey }
+ if (value.addNew == null) { value.addNew = mac ? event.metaKey : event.ctrlKey }
+ if (value.moveOnDrag == null) { value.moveOnDrag = !(mac ? event.altKey : event.ctrlKey) }
+ return value
+}
+
+function leftButtonDown(cm, pos, repeat, event) {
+ if (ie) { setTimeout(bind(ensureFocus, cm), 0) }
+ else { cm.curOp.focus = activeElt() }
+
+ var behavior = configureMouse(cm, repeat, event)
+
+ var sel = cm.doc.sel, contained
+ if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() &&
+ repeat == "single" && (contained = sel.contains(pos)) > -1 &&
+ (cmp((contained = sel.ranges[contained]).from(), pos) < 0 || pos.xRel > 0) &&
+ (cmp(contained.to(), pos) > 0 || pos.xRel < 0))
+ { leftButtonStartDrag(cm, event, pos, behavior) }
+ else
+ { leftButtonSelect(cm, event, pos, behavior) }
+}
+
+// Start a text drag. When it ends, see if any dragging actually
+// happen, and treat as a click if it didn't.
+function leftButtonStartDrag(cm, event, pos, behavior) {
+ var display = cm.display, moved = false
+ var dragEnd = operation(cm, function (e) {
+ if (webkit) { display.scroller.draggable = false }
+ cm.state.draggingText = false
+ off(document, "mouseup", dragEnd)
+ off(document, "mousemove", mouseMove)
+ off(display.scroller, "dragstart", dragStart)
+ off(display.scroller, "drop", dragEnd)
+ if (!moved) {
+ e_preventDefault(e)
+ if (!behavior.addNew)
+ { extendSelection(cm.doc, pos, null, null, behavior.extend) }
+ // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)
+ if (webkit || ie && ie_version == 9)
+ { setTimeout(function () {document.body.focus(); display.input.focus()}, 20) }
+ else
+ { display.input.focus() }
+ }
+ })
+ var mouseMove = function(e2) {
+ moved = moved || Math.abs(event.clientX - e2.clientX) + Math.abs(event.clientY - e2.clientY) >= 10
+ }
+ var dragStart = function () { return moved = true; }
+ // Let the drag handler handle this.
+ if (webkit) { display.scroller.draggable = true }
+ cm.state.draggingText = dragEnd
+ dragEnd.copy = !behavior.moveOnDrag
+ // IE's approach to draggable
+ if (display.scroller.dragDrop) { display.scroller.dragDrop() }
+ on(document, "mouseup", dragEnd)
+ on(document, "mousemove", mouseMove)
+ on(display.scroller, "dragstart", dragStart)
+ on(display.scroller, "drop", dragEnd)
+
+ delayBlurEvent(cm)
+ setTimeout(function () { return display.input.focus(); }, 20)
+}
+
+function rangeForUnit(cm, pos, unit) {
+ if (unit == "char") { return new Range(pos, pos) }
+ if (unit == "word") { return cm.findWordAt(pos) }
+ if (unit == "line") { return new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) }
+ var result = unit(cm, pos)
+ return new Range(result.from, result.to)
+}
+
+// Normal selection, as opposed to text dragging.
+function leftButtonSelect(cm, event, start, behavior) {
+ var display = cm.display, doc = cm.doc
+ e_preventDefault(event)
+
+ var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges
+ if (behavior.addNew && !behavior.extend) {
+ ourIndex = doc.sel.contains(start)
+ if (ourIndex > -1)
+ { ourRange = ranges[ourIndex] }
+ else
+ { ourRange = new Range(start, start) }
+ } else {
+ ourRange = doc.sel.primary()
+ ourIndex = doc.sel.primIndex
+ }
+
+ if (behavior.unit == "rectangle") {
+ if (!behavior.addNew) { ourRange = new Range(start, start) }
+ start = posFromMouse(cm, event, true, true)
+ ourIndex = -1
+ } else {
+ var range = rangeForUnit(cm, start, behavior.unit)
+ if (behavior.extend)
+ { ourRange = extendRange(ourRange, range.anchor, range.head, behavior.extend) }
+ else
+ { ourRange = range }
+ }
+
+ if (!behavior.addNew) {
+ ourIndex = 0
+ setSelection(doc, new Selection([ourRange], 0), sel_mouse)
+ startSel = doc.sel
+ } else if (ourIndex == -1) {
+ ourIndex = ranges.length
+ setSelection(doc, normalizeSelection(ranges.concat([ourRange]), ourIndex),
+ {scroll: false, origin: "*mouse"})
+ } else if (ranges.length > 1 && ranges[ourIndex].empty() && behavior.unit == "char" && !behavior.extend) {
+ setSelection(doc, normalizeSelection(ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),
+ {scroll: false, origin: "*mouse"})
+ startSel = doc.sel
+ } else {
+ replaceOneSelection(doc, ourIndex, ourRange, sel_mouse)
+ }
+
+ var lastPos = start
+ function extendTo(pos) {
+ if (cmp(lastPos, pos) == 0) { return }
+ lastPos = pos
+
+ if (behavior.unit == "rectangle") {
+ var ranges = [], tabSize = cm.options.tabSize
+ var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize)
+ var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize)
+ var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol)
+ for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
+ line <= end; line++) {
+ var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize)
+ if (left == right)
+ { ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))) }
+ else if (text.length > leftPos)
+ { ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))) }
+ }
+ if (!ranges.length) { ranges.push(new Range(start, start)) }
+ setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
+ {origin: "*mouse", scroll: false})
+ cm.scrollIntoView(pos)
+ } else {
+ var oldRange = ourRange
+ var range = rangeForUnit(cm, pos, behavior.unit)
+ var anchor = oldRange.anchor, head
+ if (cmp(range.anchor, anchor) > 0) {
+ head = range.head
+ anchor = minPos(oldRange.from(), range.anchor)
+ } else {
+ head = range.anchor
+ anchor = maxPos(oldRange.to(), range.head)
+ }
+ var ranges$1 = startSel.ranges.slice(0)
+ ranges$1[ourIndex] = bidiSimplify(cm, new Range(clipPos(doc, anchor), head))
+ setSelection(doc, normalizeSelection(ranges$1, ourIndex), sel_mouse)
+ }
+ }
+
+ var editorSize = display.wrapper.getBoundingClientRect()
+ // Used to ensure timeout re-tries don't fire when another extend
+ // happened in the meantime (clearTimeout isn't reliable -- at
+ // least on Chrome, the timeouts still happen even when cleared,
+ // if the clear happens after their scheduled firing time).
+ var counter = 0
+
+ function extend(e) {
+ var curCount = ++counter
+ var cur = posFromMouse(cm, e, true, behavior.unit == "rectangle")
+ if (!cur) { return }
+ if (cmp(cur, lastPos) != 0) {
+ cm.curOp.focus = activeElt()
+ extendTo(cur)
+ var visible = visibleLines(display, doc)
+ if (cur.line >= visible.to || cur.line < visible.from)
+ { setTimeout(operation(cm, function () {if (counter == curCount) { extend(e) }}), 150) }
+ } else {
+ var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0
+ if (outside) { setTimeout(operation(cm, function () {
+ if (counter != curCount) { return }
+ display.scroller.scrollTop += outside
+ extend(e)
+ }), 50) }
+ }
+ }
+
+ function done(e) {
+ cm.state.selectingText = false
+ counter = Infinity
+ e_preventDefault(e)
+ display.input.focus()
+ off(document, "mousemove", move)
+ off(document, "mouseup", up)
+ doc.history.lastSelOrigin = null
+ }
+
+ var move = operation(cm, function (e) {
+ if (!e_button(e)) { done(e) }
+ else { extend(e) }
+ })
+ var up = operation(cm, done)
+ cm.state.selectingText = up
+ on(document, "mousemove", move)
+ on(document, "mouseup", up)
+}
+
+// Used when mouse-selecting to adjust the anchor to the proper side
+// of a bidi jump depending on the visual position of the head.
+function bidiSimplify(cm, range) {
+ var anchor = range.anchor;
+ var head = range.head;
+ var anchorLine = getLine(cm.doc, anchor.line)
+ if (cmp(anchor, head) == 0 && anchor.sticky == head.sticky) { return range }
+ var order = getOrder(anchorLine)
+ if (!order) { return range }
+ var index = getBidiPartAt(order, anchor.ch, anchor.sticky), part = order[index]
+ if (part.from != anchor.ch && part.to != anchor.ch) { return range }
+ var boundary = index + ((part.from == anchor.ch) == (part.level != 1) ? 0 : 1)
+ if (boundary == 0 || boundary == order.length) { return range }
+
+ // Compute the relative visual position of the head compared to the
+ // anchor (<0 is to the left, >0 to the right)
+ var leftSide
+ if (head.line != anchor.line) {
+ leftSide = (head.line - anchor.line) * (cm.doc.direction == "ltr" ? 1 : -1) > 0
+ } else {
+ var headIndex = getBidiPartAt(order, head.ch, head.sticky)
+ var dir = headIndex - index || (head.ch - anchor.ch) * (part.level == 1 ? -1 : 1)
+ if (headIndex == boundary - 1 || headIndex == boundary)
+ { leftSide = dir < 0 }
+ else
+ { leftSide = dir > 0 }
+ }
+
+ var usePart = order[boundary + (leftSide ? -1 : 0)]
+ var from = leftSide == (usePart.level == 1)
+ var ch = from ? usePart.from : usePart.to, sticky = from ? "after" : "before"
+ return anchor.ch == ch && anchor.sticky == sticky ? range : new Range(new Pos(anchor.line, ch, sticky), head)
+}
+
+
+// Determines whether an event happened in the gutter, and fires the
+// handlers for the corresponding event.
+function gutterEvent(cm, e, type, prevent) {
+ var mX, mY
+ if (e.touches) {
+ mX = e.touches[0].clientX
+ mY = e.touches[0].clientY
+ } else {
+ try { mX = e.clientX; mY = e.clientY }
+ catch(e) { return false }
+ }
+ if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false }
+ if (prevent) { e_preventDefault(e) }
+
+ var display = cm.display
+ var lineBox = display.lineDiv.getBoundingClientRect()
+
+ if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) }
+ mY -= lineBox.top - display.viewOffset
+
+ for (var i = 0; i < cm.options.gutters.length; ++i) {
+ var g = display.gutters.childNodes[i]
+ if (g && g.getBoundingClientRect().right >= mX) {
+ var line = lineAtHeight(cm.doc, mY)
+ var gutter = cm.options.gutters[i]
+ signal(cm, type, cm, line, gutter, e)
+ return e_defaultPrevented(e)
+ }
+ }
+}
+
+function clickInGutter(cm, e) {
+ return gutterEvent(cm, e, "gutterClick", true)
+}
+
+// CONTEXT MENU HANDLING
+
+// To make the context menu work, we need to briefly unhide the
+// textarea (making it as unobtrusive as possible) to let the
+// right-click take effect on it.
+function onContextMenu(cm, e) {
+ if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return }
+ if (signalDOMEvent(cm, e, "contextmenu")) { return }
+ cm.display.input.onContextMenu(e)
+}
+
+function contextMenuInGutter(cm, e) {
+ if (!hasHandler(cm, "gutterContextMenu")) { return false }
+ return gutterEvent(cm, e, "gutterContextMenu", false)
+}
+
+function themeChanged(cm) {
+ cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
+ cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-")
+ clearCaches(cm)
+}
+
+var Init = {toString: function(){return "CodeMirror.Init"}}
+
+var defaults = {}
+var optionHandlers = {}
+
+function defineOptions(CodeMirror) {
+ var optionHandlers = CodeMirror.optionHandlers
+
+ function option(name, deflt, handle, notOnInit) {
+ CodeMirror.defaults[name] = deflt
+ if (handle) { optionHandlers[name] =
+ notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old) }} : handle }
+ }
+
+ CodeMirror.defineOption = option
+
+ // Passed to option handlers when there is no old value.
+ CodeMirror.Init = Init
+
+ // These two are, on init, called from the constructor because they
+ // have to be initialized before the editor can start at all.
+ option("value", "", function (cm, val) { return cm.setValue(val); }, true)
+ option("mode", null, function (cm, val) {
+ cm.doc.modeOption = val
+ loadMode(cm)
+ }, true)
+
+ option("indentUnit", 2, loadMode, true)
+ option("indentWithTabs", false)
+ option("smartIndent", true)
+ option("tabSize", 4, function (cm) {
+ resetModeState(cm)
+ clearCaches(cm)
+ regChange(cm)
+ }, true)
+ option("lineSeparator", null, function (cm, val) {
+ cm.doc.lineSep = val
+ if (!val) { return }
+ var newBreaks = [], lineNo = cm.doc.first
+ cm.doc.iter(function (line) {
+ for (var pos = 0;;) {
+ var found = line.text.indexOf(val, pos)
+ if (found == -1) { break }
+ pos = found + val.length
+ newBreaks.push(Pos(lineNo, found))
+ }
+ lineNo++
+ })
+ for (var i = newBreaks.length - 1; i >= 0; i--)
+ { replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)) }
+ })
+ option("specialChars", /[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b-\u200f\u2028\u2029\ufeff]/g, function (cm, val, old) {
+ cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g")
+ if (old != Init) { cm.refresh() }
+ })
+ option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true)
+ option("electricChars", true)
+ option("inputStyle", mobile ? "contenteditable" : "textarea", function () {
+ throw new Error("inputStyle can not (yet) be changed in a running editor") // FIXME
+ }, true)
+ option("spellcheck", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true)
+ option("rtlMoveVisually", !windows)
+ option("wholeLineUpdateBefore", true)
+
+ option("theme", "default", function (cm) {
+ themeChanged(cm)
+ guttersChanged(cm)
+ }, true)
+ option("keyMap", "default", function (cm, val, old) {
+ var next = getKeyMap(val)
+ var prev = old != Init && getKeyMap(old)
+ if (prev && prev.detach) { prev.detach(cm, next) }
+ if (next.attach) { next.attach(cm, prev || null) }
+ })
+ option("extraKeys", null)
+ option("configureMouse", null)
+
+ option("lineWrapping", false, wrappingChanged, true)
+ option("gutters", [], function (cm) {
+ setGuttersForLineNumbers(cm.options)
+ guttersChanged(cm)
+ }, true)
+ option("fixedGutter", true, function (cm, val) {
+ cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0"
+ cm.refresh()
+ }, true)
+ option("coverGutterNextToScrollbar", false, function (cm) { return updateScrollbars(cm); }, true)
+ option("scrollbarStyle", "native", function (cm) {
+ initScrollbars(cm)
+ updateScrollbars(cm)
+ cm.display.scrollbars.setScrollTop(cm.doc.scrollTop)
+ cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft)
+ }, true)
+ option("lineNumbers", false, function (cm) {
+ setGuttersForLineNumbers(cm.options)
+ guttersChanged(cm)
+ }, true)
+ option("firstLineNumber", 1, guttersChanged, true)
+ option("lineNumberFormatter", function (integer) { return integer; }, guttersChanged, true)
+ option("showCursorWhenSelecting", false, updateSelection, true)
+
+ option("resetSelectionOnContextMenu", true)
+ option("lineWiseCopyCut", true)
+ option("pasteLinesPerSelection", true)
+
+ option("readOnly", false, function (cm, val) {
+ if (val == "nocursor") {
+ onBlur(cm)
+ cm.display.input.blur()
+ }
+ cm.display.input.readOnlyChanged(val)
+ })
+ option("disableInput", false, function (cm, val) {if (!val) { cm.display.input.reset() }}, true)
+ option("dragDrop", true, dragDropChanged)
+ option("allowDropFileTypes", null)
+
+ option("cursorBlinkRate", 530)
+ option("cursorScrollMargin", 0)
+ option("cursorHeight", 1, updateSelection, true)
+ option("singleCursorHeightPerLine", true, updateSelection, true)
+ option("workTime", 100)
+ option("workDelay", 100)
+ option("flattenSpans", true, resetModeState, true)
+ option("addModeClass", false, resetModeState, true)
+ option("pollInterval", 100)
+ option("undoDepth", 200, function (cm, val) { return cm.doc.history.undoDepth = val; })
+ option("historyEventDelay", 1250)
+ option("viewportMargin", 10, function (cm) { return cm.refresh(); }, true)
+ option("maxHighlightLength", 10000, resetModeState, true)
+ option("moveInputWithCursor", true, function (cm, val) {
+ if (!val) { cm.display.input.resetPosition() }
+ })
+
+ option("tabindex", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || ""; })
+ option("autofocus", null)
+ option("direction", "ltr", function (cm, val) { return cm.doc.setDirection(val); }, true)
+}
+
+function guttersChanged(cm) {
+ updateGutters(cm)
+ regChange(cm)
+ alignHorizontally(cm)
+}
+
+function dragDropChanged(cm, value, old) {
+ var wasOn = old && old != Init
+ if (!value != !wasOn) {
+ var funcs = cm.display.dragFunctions
+ var toggle = value ? on : off
+ toggle(cm.display.scroller, "dragstart", funcs.start)
+ toggle(cm.display.scroller, "dragenter", funcs.enter)
+ toggle(cm.display.scroller, "dragover", funcs.over)
+ toggle(cm.display.scroller, "dragleave", funcs.leave)
+ toggle(cm.display.scroller, "drop", funcs.drop)
+ }
+}
+
+function wrappingChanged(cm) {
+ if (cm.options.lineWrapping) {
+ addClass(cm.display.wrapper, "CodeMirror-wrap")
+ cm.display.sizer.style.minWidth = ""
+ cm.display.sizerWidth = null
+ } else {
+ rmClass(cm.display.wrapper, "CodeMirror-wrap")
+ findMaxLine(cm)
+ }
+ estimateLineHeights(cm)
+ regChange(cm)
+ clearCaches(cm)
+ setTimeout(function () { return updateScrollbars(cm); }, 100)
+}
+
+// A CodeMirror instance represents an editor. This is the object
+// that user code is usually dealing with.
+
+function CodeMirror(place, options) {
+ var this$1 = this;
+
+ if (!(this instanceof CodeMirror)) { return new CodeMirror(place, options) }
+
+ this.options = options = options ? copyObj(options) : {}
+ // Determine effective options based on given values and defaults.
+ copyObj(defaults, options, false)
+ setGuttersForLineNumbers(options)
+
+ var doc = options.value
+ if (typeof doc == "string") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction) }
+ this.doc = doc
+
+ var input = new CodeMirror.inputStyles[options.inputStyle](this)
+ var display = this.display = new Display(place, doc, input)
+ display.wrapper.CodeMirror = this
+ updateGutters(this)
+ themeChanged(this)
+ if (options.lineWrapping)
+ { this.display.wrapper.className += " CodeMirror-wrap" }
+ initScrollbars(this)
+
+ this.state = {
+ keyMaps: [], // stores maps added by addKeyMap
+ overlays: [], // highlighting overlays, as added by addOverlay
+ modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info
+ overwrite: false,
+ delayingBlurEvent: false,
+ focused: false,
+ suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
+ pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in input.poll
+ selectingText: false,
+ draggingText: false,
+ highlight: new Delayed(), // stores highlight worker timeout
+ keySeq: null, // Unfinished key sequence
+ specialChars: null
+ }
+
+ if (options.autofocus && !mobile) { display.input.focus() }
+
+ // Override magic textarea content restore that IE sometimes does
+ // on our hidden textarea on reload
+ if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20) }
+
+ registerEventHandlers(this)
+ ensureGlobalHandlers()
+
+ startOperation(this)
+ this.curOp.forceUpdate = true
+ attachDoc(this, doc)
+
+ if ((options.autofocus && !mobile) || this.hasFocus())
+ { setTimeout(bind(onFocus, this), 20) }
+ else
+ { onBlur(this) }
+
+ for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt))
+ { optionHandlers[opt](this$1, options[opt], Init) } }
+ maybeUpdateLineNumberWidth(this)
+ if (options.finishInit) { options.finishInit(this) }
+ for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this$1) }
+ endOperation(this)
+ // Suppress optimizelegibility in Webkit, since it breaks text
+ // measuring on line wrapping boundaries.
+ if (webkit && options.lineWrapping &&
+ getComputedStyle(display.lineDiv).textRendering == "optimizelegibility")
+ { display.lineDiv.style.textRendering = "auto" }
+}
+
+// The default configuration options.
+CodeMirror.defaults = defaults
+// Functions to run when options are changed.
+CodeMirror.optionHandlers = optionHandlers
+
+// Attach the necessary event handlers when initializing the editor
+function registerEventHandlers(cm) {
+ var d = cm.display
+ on(d.scroller, "mousedown", operation(cm, onMouseDown))
+ // Older IE's will not fire a second mousedown for a double click
+ if (ie && ie_version < 11)
+ { on(d.scroller, "dblclick", operation(cm, function (e) {
+ if (signalDOMEvent(cm, e)) { return }
+ var pos = posFromMouse(cm, e)
+ if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return }
+ e_preventDefault(e)
+ var word = cm.findWordAt(pos)
+ extendSelection(cm.doc, word.anchor, word.head)
+ })) }
+ else
+ { on(d.scroller, "dblclick", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }) }
+ // Some browsers fire contextmenu *after* opening the menu, at
+ // which point we can't mess with it anymore. Context menu is
+ // handled in onMouseDown for these browsers.
+ if (!captureRightClick) { on(d.scroller, "contextmenu", function (e) { return onContextMenu(cm, e); }) }
+
+ // Used to suppress mouse event handling when a touch happens
+ var touchFinished, prevTouch = {end: 0}
+ function finishTouch() {
+ if (d.activeTouch) {
+ touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000)
+ prevTouch = d.activeTouch
+ prevTouch.end = +new Date
+ }
+ }
+ function isMouseLikeTouchEvent(e) {
+ if (e.touches.length != 1) { return false }
+ var touch = e.touches[0]
+ return touch.radiusX <= 1 && touch.radiusY <= 1
+ }
+ function farAway(touch, other) {
+ if (other.left == null) { return true }
+ var dx = other.left - touch.left, dy = other.top - touch.top
+ return dx * dx + dy * dy > 20 * 20
+ }
+ on(d.scroller, "touchstart", function (e) {
+ if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e) && !clickInGutter(cm, e)) {
+ d.input.ensurePolled()
+ clearTimeout(touchFinished)
+ var now = +new Date
+ d.activeTouch = {start: now, moved: false,
+ prev: now - prevTouch.end <= 300 ? prevTouch : null}
+ if (e.touches.length == 1) {
+ d.activeTouch.left = e.touches[0].pageX
+ d.activeTouch.top = e.touches[0].pageY
+ }
+ }
+ })
+ on(d.scroller, "touchmove", function () {
+ if (d.activeTouch) { d.activeTouch.moved = true }
+ })
+ on(d.scroller, "touchend", function (e) {
+ var touch = d.activeTouch
+ if (touch && !eventInWidget(d, e) && touch.left != null &&
+ !touch.moved && new Date - touch.start < 300) {
+ var pos = cm.coordsChar(d.activeTouch, "page"), range
+ if (!touch.prev || farAway(touch, touch.prev)) // Single tap
+ { range = new Range(pos, pos) }
+ else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap
+ { range = cm.findWordAt(pos) }
+ else // Triple tap
+ { range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) }
+ cm.setSelection(range.anchor, range.head)
+ cm.focus()
+ e_preventDefault(e)
+ }
+ finishTouch()
+ })
+ on(d.scroller, "touchcancel", finishTouch)
+
+ // Sync scrolling between fake scrollbars and real scrollable
+ // area, ensure viewport is updated when scrolling.
+ on(d.scroller, "scroll", function () {
+ if (d.scroller.clientHeight) {
+ updateScrollTop(cm, d.scroller.scrollTop)
+ setScrollLeft(cm, d.scroller.scrollLeft, true)
+ signal(cm, "scroll", cm)
+ }
+ })
+
+ // Listen to wheel events in order to try and update the viewport on time.
+ on(d.scroller, "mousewheel", function (e) { return onScrollWheel(cm, e); })
+ on(d.scroller, "DOMMouseScroll", function (e) { return onScrollWheel(cm, e); })
+
+ // Prevent wrapper from ever scrolling
+ on(d.wrapper, "scroll", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; })
+
+ d.dragFunctions = {
+ enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e) }},
+ over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e) }},
+ start: function (e) { return onDragStart(cm, e); },
+ drop: operation(cm, onDrop),
+ leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm) }}
+ }
+
+ var inp = d.input.getField()
+ on(inp, "keyup", function (e) { return onKeyUp.call(cm, e); })
+ on(inp, "keydown", operation(cm, onKeyDown))
+ on(inp, "keypress", operation(cm, onKeyPress))
+ on(inp, "focus", function (e) { return onFocus(cm, e); })
+ on(inp, "blur", function (e) { return onBlur(cm, e); })
+}
+
+var initHooks = []
+CodeMirror.defineInitHook = function (f) { return initHooks.push(f); }
+
+// Indent the given line. The how parameter can be "smart",
+// "add"/null, "subtract", or "prev". When aggressive is false
+// (typically set to true for forced single-line indents), empty
+// lines are not indented, and places where the mode returns Pass
+// are left alone.
+function indentLine(cm, n, how, aggressive) {
+ var doc = cm.doc, state
+ if (how == null) { how = "add" }
+ if (how == "smart") {
+ // Fall back to "prev" when the mode doesn't have an indentation
+ // method.
+ if (!doc.mode.indent) { how = "prev" }
+ else { state = getContextBefore(cm, n).state }
+ }
+
+ var tabSize = cm.options.tabSize
+ var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize)
+ if (line.stateAfter) { line.stateAfter = null }
+ var curSpaceString = line.text.match(/^\s*/)[0], indentation
+ if (!aggressive && !/\S/.test(line.text)) {
+ indentation = 0
+ how = "not"
+ } else if (how == "smart") {
+ indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text)
+ if (indentation == Pass || indentation > 150) {
+ if (!aggressive) { return }
+ how = "prev"
+ }
+ }
+ if (how == "prev") {
+ if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize) }
+ else { indentation = 0 }
+ } else if (how == "add") {
+ indentation = curSpace + cm.options.indentUnit
+ } else if (how == "subtract") {
+ indentation = curSpace - cm.options.indentUnit
+ } else if (typeof how == "number") {
+ indentation = curSpace + how
+ }
+ indentation = Math.max(0, indentation)
+
+ var indentString = "", pos = 0
+ if (cm.options.indentWithTabs)
+ { for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t"} }
+ if (pos < indentation) { indentString += spaceStr(indentation - pos) }
+
+ if (indentString != curSpaceString) {
+ replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input")
+ line.stateAfter = null
+ return true
+ } else {
+ // Ensure that, if the cursor was in the whitespace at the start
+ // of the line, it is moved to the end of that space.
+ for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) {
+ var range = doc.sel.ranges[i$1]
+ if (range.head.line == n && range.head.ch < curSpaceString.length) {
+ var pos$1 = Pos(n, curSpaceString.length)
+ replaceOneSelection(doc, i$1, new Range(pos$1, pos$1))
+ break
+ }
+ }
+ }
+}
+
+// This will be set to a {lineWise: bool, text: [string]} object, so
+// that, when pasting, we know what kind of selections the copied
+// text was made out of.
+var lastCopied = null
+
+function setLastCopied(newLastCopied) {
+ lastCopied = newLastCopied
+}
+
+function applyTextInput(cm, inserted, deleted, sel, origin) {
+ var doc = cm.doc
+ cm.display.shift = false
+ if (!sel) { sel = doc.sel }
+
+ var paste = cm.state.pasteIncoming || origin == "paste"
+ var textLines = splitLinesAuto(inserted), multiPaste = null
+ // When pasing N lines into N selections, insert one line per selection
+ if (paste && sel.ranges.length > 1) {
+ if (lastCopied && lastCopied.text.join("\n") == inserted) {
+ if (sel.ranges.length % lastCopied.text.length == 0) {
+ multiPaste = []
+ for (var i = 0; i < lastCopied.text.length; i++)
+ { multiPaste.push(doc.splitLines(lastCopied.text[i])) }
+ }
+ } else if (textLines.length == sel.ranges.length && cm.options.pasteLinesPerSelection) {
+ multiPaste = map(textLines, function (l) { return [l]; })
+ }
+ }
+
+ var updateInput
+ // Normal behavior is to insert the new text into every selection
+ for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) {
+ var range = sel.ranges[i$1]
+ var from = range.from(), to = range.to()
+ if (range.empty()) {
+ if (deleted && deleted > 0) // Handle deletion
+ { from = Pos(from.line, from.ch - deleted) }
+ else if (cm.state.overwrite && !paste) // Handle overwrite
+ { to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)) }
+ else if (lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == inserted)
+ { from = to = Pos(from.line, 0) }
+ }
+ updateInput = cm.curOp.updateInput
+ var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines,
+ origin: origin || (paste ? "paste" : cm.state.cutIncoming ? "cut" : "+input")}
+ makeChange(cm.doc, changeEvent)
+ signalLater(cm, "inputRead", cm, changeEvent)
+ }
+ if (inserted && !paste)
+ { triggerElectric(cm, inserted) }
+
+ ensureCursorVisible(cm)
+ cm.curOp.updateInput = updateInput
+ cm.curOp.typing = true
+ cm.state.pasteIncoming = cm.state.cutIncoming = false
+}
+
+function handlePaste(e, cm) {
+ var pasted = e.clipboardData && e.clipboardData.getData("Text")
+ if (pasted) {
+ e.preventDefault()
+ if (!cm.isReadOnly() && !cm.options.disableInput)
+ { runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, "paste"); }) }
+ return true
+ }
+}
+
+function triggerElectric(cm, inserted) {
+ // When an 'electric' character is inserted, immediately trigger a reindent
+ if (!cm.options.electricChars || !cm.options.smartIndent) { return }
+ var sel = cm.doc.sel
+
+ for (var i = sel.ranges.length - 1; i >= 0; i--) {
+ var range = sel.ranges[i]
+ if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) { continue }
+ var mode = cm.getModeAt(range.head)
+ var indented = false
+ if (mode.electricChars) {
+ for (var j = 0; j < mode.electricChars.length; j++)
+ { if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
+ indented = indentLine(cm, range.head.line, "smart")
+ break
+ } }
+ } else if (mode.electricInput) {
+ if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))
+ { indented = indentLine(cm, range.head.line, "smart") }
+ }
+ if (indented) { signalLater(cm, "electricInput", cm, range.head.line) }
+ }
+}
+
+function copyableRanges(cm) {
+ var text = [], ranges = []
+ for (var i = 0; i < cm.doc.sel.ranges.length; i++) {
+ var line = cm.doc.sel.ranges[i].head.line
+ var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)}
+ ranges.push(lineRange)
+ text.push(cm.getRange(lineRange.anchor, lineRange.head))
+ }
+ return {text: text, ranges: ranges}
+}
+
+function disableBrowserMagic(field, spellcheck) {
+ field.setAttribute("autocorrect", "off")
+ field.setAttribute("autocapitalize", "off")
+ field.setAttribute("spellcheck", !!spellcheck)
+}
+
+function hiddenTextarea() {
+ var te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none")
+ var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;")
+ // The textarea is kept positioned near the cursor to prevent the
+ // fact that it'll be scrolled into view on input from scrolling
+ // our fake cursor out of view. On webkit, when wrap=off, paste is
+ // very slow. So make the area wide instead.
+ if (webkit) { te.style.width = "1000px" }
+ else { te.setAttribute("wrap", "off") }
+ // If border: 0; -- iOS fails to open keyboard (issue #1287)
+ if (ios) { te.style.border = "1px solid black" }
+ disableBrowserMagic(te)
+ return div
+}
+
+// The publicly visible API. Note that methodOp(f) means
+// 'wrap f in an operation, performed on its `this` parameter'.
+
+// This is not the complete set of editor methods. Most of the
+// methods defined on the Doc type are also injected into
+// CodeMirror.prototype, for backwards compatibility and
+// convenience.
+
+function addEditorMethods(CodeMirror) {
+ var optionHandlers = CodeMirror.optionHandlers
+
+ var helpers = CodeMirror.helpers = {}
+
+ CodeMirror.prototype = {
+ constructor: CodeMirror,
+ focus: function(){window.focus(); this.display.input.focus()},
+
+ setOption: function(option, value) {
+ var options = this.options, old = options[option]
+ if (options[option] == value && option != "mode") { return }
+ options[option] = value
+ if (optionHandlers.hasOwnProperty(option))
+ { operation(this, optionHandlers[option])(this, value, old) }
+ signal(this, "optionChange", this, option)
+ },
+
+ getOption: function(option) {return this.options[option]},
+ getDoc: function() {return this.doc},
+
+ addKeyMap: function(map, bottom) {
+ this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map))
+ },
+ removeKeyMap: function(map) {
+ var maps = this.state.keyMaps
+ for (var i = 0; i < maps.length; ++i)
+ { if (maps[i] == map || maps[i].name == map) {
+ maps.splice(i, 1)
+ return true
+ } }
+ },
+
+ addOverlay: methodOp(function(spec, options) {
+ var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec)
+ if (mode.startState) { throw new Error("Overlays may not be stateful.") }
+ insertSorted(this.state.overlays,
+ {mode: mode, modeSpec: spec, opaque: options && options.opaque,
+ priority: (options && options.priority) || 0},
+ function (overlay) { return overlay.priority; })
+ this.state.modeGen++
+ regChange(this)
+ }),
+ removeOverlay: methodOp(function(spec) {
+ var this$1 = this;
+
+ var overlays = this.state.overlays
+ for (var i = 0; i < overlays.length; ++i) {
+ var cur = overlays[i].modeSpec
+ if (cur == spec || typeof spec == "string" && cur.name == spec) {
+ overlays.splice(i, 1)
+ this$1.state.modeGen++
+ regChange(this$1)
+ return
+ }
+ }
+ }),
+
+ indentLine: methodOp(function(n, dir, aggressive) {
+ if (typeof dir != "string" && typeof dir != "number") {
+ if (dir == null) { dir = this.options.smartIndent ? "smart" : "prev" }
+ else { dir = dir ? "add" : "subtract" }
+ }
+ if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive) }
+ }),
+ indentSelection: methodOp(function(how) {
+ var this$1 = this;
+
+ var ranges = this.doc.sel.ranges, end = -1
+ for (var i = 0; i < ranges.length; i++) {
+ var range = ranges[i]
+ if (!range.empty()) {
+ var from = range.from(), to = range.to()
+ var start = Math.max(end, from.line)
+ end = Math.min(this$1.lastLine(), to.line - (to.ch ? 0 : 1)) + 1
+ for (var j = start; j < end; ++j)
+ { indentLine(this$1, j, how) }
+ var newRanges = this$1.doc.sel.ranges
+ if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
+ { replaceOneSelection(this$1.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll) }
+ } else if (range.head.line > end) {
+ indentLine(this$1, range.head.line, how, true)
+ end = range.head.line
+ if (i == this$1.doc.sel.primIndex) { ensureCursorVisible(this$1) }
+ }
+ }
+ }),
+
+ // Fetch the parser token for a given character. Useful for hacks
+ // that want to inspect the mode state (say, for completion).
+ getTokenAt: function(pos, precise) {
+ return takeToken(this, pos, precise)
+ },
+
+ getLineTokens: function(line, precise) {
+ return takeToken(this, Pos(line), precise, true)
+ },
+
+ getTokenTypeAt: function(pos) {
+ pos = clipPos(this.doc, pos)
+ var styles = getLineStyles(this, getLine(this.doc, pos.line))
+ var before = 0, after = (styles.length - 1) / 2, ch = pos.ch
+ var type
+ if (ch == 0) { type = styles[2] }
+ else { for (;;) {
+ var mid = (before + after) >> 1
+ if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid }
+ else if (styles[mid * 2 + 1] < ch) { before = mid + 1 }
+ else { type = styles[mid * 2 + 2]; break }
+ } }
+ var cut = type ? type.indexOf("overlay ") : -1
+ return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1)
+ },
+
+ getModeAt: function(pos) {
+ var mode = this.doc.mode
+ if (!mode.innerMode) { return mode }
+ return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode
+ },
+
+ getHelper: function(pos, type) {
+ return this.getHelpers(pos, type)[0]
+ },
+
+ getHelpers: function(pos, type) {
+ var this$1 = this;
+
+ var found = []
+ if (!helpers.hasOwnProperty(type)) { return found }
+ var help = helpers[type], mode = this.getModeAt(pos)
+ if (typeof mode[type] == "string") {
+ if (help[mode[type]]) { found.push(help[mode[type]]) }
+ } else if (mode[type]) {
+ for (var i = 0; i < mode[type].length; i++) {
+ var val = help[mode[type][i]]
+ if (val) { found.push(val) }
+ }
+ } else if (mode.helperType && help[mode.helperType]) {
+ found.push(help[mode.helperType])
+ } else if (help[mode.name]) {
+ found.push(help[mode.name])
+ }
+ for (var i$1 = 0; i$1 < help._global.length; i$1++) {
+ var cur = help._global[i$1]
+ if (cur.pred(mode, this$1) && indexOf(found, cur.val) == -1)
+ { found.push(cur.val) }
+ }
+ return found
+ },
+
+ getStateAfter: function(line, precise) {
+ var doc = this.doc
+ line = clipLine(doc, line == null ? doc.first + doc.size - 1: line)
+ return getContextBefore(this, line + 1, precise).state
+ },
+
+ cursorCoords: function(start, mode) {
+ var pos, range = this.doc.sel.primary()
+ if (start == null) { pos = range.head }
+ else if (typeof start == "object") { pos = clipPos(this.doc, start) }
+ else { pos = start ? range.from() : range.to() }
+ return cursorCoords(this, pos, mode || "page")
+ },
+
+ charCoords: function(pos, mode) {
+ return charCoords(this, clipPos(this.doc, pos), mode || "page")
+ },
+
+ coordsChar: function(coords, mode) {
+ coords = fromCoordSystem(this, coords, mode || "page")
+ return coordsChar(this, coords.left, coords.top)
+ },
+
+ lineAtHeight: function(height, mode) {
+ height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top
+ return lineAtHeight(this.doc, height + this.display.viewOffset)
+ },
+ heightAtLine: function(line, mode, includeWidgets) {
+ var end = false, lineObj
+ if (typeof line == "number") {
+ var last = this.doc.first + this.doc.size - 1
+ if (line < this.doc.first) { line = this.doc.first }
+ else if (line > last) { line = last; end = true }
+ lineObj = getLine(this.doc, line)
+ } else {
+ lineObj = line
+ }
+ return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page", includeWidgets || end).top +
+ (end ? this.doc.height - heightAtLine(lineObj) : 0)
+ },
+
+ defaultTextHeight: function() { return textHeight(this.display) },
+ defaultCharWidth: function() { return charWidth(this.display) },
+
+ getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}},
+
+ addWidget: function(pos, node, scroll, vert, horiz) {
+ var display = this.display
+ pos = cursorCoords(this, clipPos(this.doc, pos))
+ var top = pos.bottom, left = pos.left
+ node.style.position = "absolute"
+ node.setAttribute("cm-ignore-events", "true")
+ this.display.input.setUneditable(node)
+ display.sizer.appendChild(node)
+ if (vert == "over") {
+ top = pos.top
+ } else if (vert == "above" || vert == "near") {
+ var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
+ hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth)
+ // Default to positioning above (if specified and possible); otherwise default to positioning below
+ if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
+ { top = pos.top - node.offsetHeight }
+ else if (pos.bottom + node.offsetHeight <= vspace)
+ { top = pos.bottom }
+ if (left + node.offsetWidth > hspace)
+ { left = hspace - node.offsetWidth }
+ }
+ node.style.top = top + "px"
+ node.style.left = node.style.right = ""
+ if (horiz == "right") {
+ left = display.sizer.clientWidth - node.offsetWidth
+ node.style.right = "0px"
+ } else {
+ if (horiz == "left") { left = 0 }
+ else if (horiz == "middle") { left = (display.sizer.clientWidth - node.offsetWidth) / 2 }
+ node.style.left = left + "px"
+ }
+ if (scroll)
+ { scrollIntoView(this, {left: left, top: top, right: left + node.offsetWidth, bottom: top + node.offsetHeight}) }
+ },
+
+ triggerOnKeyDown: methodOp(onKeyDown),
+ triggerOnKeyPress: methodOp(onKeyPress),
+ triggerOnKeyUp: onKeyUp,
+ triggerOnMouseDown: methodOp(onMouseDown),
+
+ execCommand: function(cmd) {
+ if (commands.hasOwnProperty(cmd))
+ { return commands[cmd].call(null, this) }
+ },
+
+ triggerElectric: methodOp(function(text) { triggerElectric(this, text) }),
+
+ findPosH: function(from, amount, unit, visually) {
+ var this$1 = this;
+
+ var dir = 1
+ if (amount < 0) { dir = -1; amount = -amount }
+ var cur = clipPos(this.doc, from)
+ for (var i = 0; i < amount; ++i) {
+ cur = findPosH(this$1.doc, cur, dir, unit, visually)
+ if (cur.hitSide) { break }
+ }
+ return cur
+ },
+
+ moveH: methodOp(function(dir, unit) {
+ var this$1 = this;
+
+ this.extendSelectionsBy(function (range) {
+ if (this$1.display.shift || this$1.doc.extend || range.empty())
+ { return findPosH(this$1.doc, range.head, dir, unit, this$1.options.rtlMoveVisually) }
+ else
+ { return dir < 0 ? range.from() : range.to() }
+ }, sel_move)
+ }),
+
+ deleteH: methodOp(function(dir, unit) {
+ var sel = this.doc.sel, doc = this.doc
+ if (sel.somethingSelected())
+ { doc.replaceSelection("", null, "+delete") }
+ else
+ { deleteNearSelection(this, function (range) {
+ var other = findPosH(doc, range.head, dir, unit, false)
+ return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other}
+ }) }
+ }),
+
+ findPosV: function(from, amount, unit, goalColumn) {
+ var this$1 = this;
+
+ var dir = 1, x = goalColumn
+ if (amount < 0) { dir = -1; amount = -amount }
+ var cur = clipPos(this.doc, from)
+ for (var i = 0; i < amount; ++i) {
+ var coords = cursorCoords(this$1, cur, "div")
+ if (x == null) { x = coords.left }
+ else { coords.left = x }
+ cur = findPosV(this$1, coords, dir, unit)
+ if (cur.hitSide) { break }
+ }
+ return cur
+ },
+
+ moveV: methodOp(function(dir, unit) {
+ var this$1 = this;
+
+ var doc = this.doc, goals = []
+ var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected()
+ doc.extendSelectionsBy(function (range) {
+ if (collapse)
+ { return dir < 0 ? range.from() : range.to() }
+ var headPos = cursorCoords(this$1, range.head, "div")
+ if (range.goalColumn != null) { headPos.left = range.goalColumn }
+ goals.push(headPos.left)
+ var pos = findPosV(this$1, headPos, dir, unit)
+ if (unit == "page" && range == doc.sel.primary())
+ { addToScrollTop(this$1, charCoords(this$1, pos, "div").top - headPos.top) }
+ return pos
+ }, sel_move)
+ if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++)
+ { doc.sel.ranges[i].goalColumn = goals[i] } }
+ }),
+
+ // Find the word at the given position (as returned by coordsChar).
+ findWordAt: function(pos) {
+ var doc = this.doc, line = getLine(doc, pos.line).text
+ var start = pos.ch, end = pos.ch
+ if (line) {
+ var helper = this.getHelper(pos, "wordChars")
+ if ((pos.sticky == "before" || end == line.length) && start) { --start; } else { ++end }
+ var startChar = line.charAt(start)
+ var check = isWordChar(startChar, helper)
+ ? function (ch) { return isWordChar(ch, helper); }
+ : /\s/.test(startChar) ? function (ch) { return /\s/.test(ch); }
+ : function (ch) { return (!/\s/.test(ch) && !isWordChar(ch)); }
+ while (start > 0 && check(line.charAt(start - 1))) { --start }
+ while (end < line.length && check(line.charAt(end))) { ++end }
+ }
+ return new Range(Pos(pos.line, start), Pos(pos.line, end))
+ },
+
+ toggleOverwrite: function(value) {
+ if (value != null && value == this.state.overwrite) { return }
+ if (this.state.overwrite = !this.state.overwrite)
+ { addClass(this.display.cursorDiv, "CodeMirror-overwrite") }
+ else
+ { rmClass(this.display.cursorDiv, "CodeMirror-overwrite") }
+
+ signal(this, "overwriteToggle", this, this.state.overwrite)
+ },
+ hasFocus: function() { return this.display.input.getField() == activeElt() },
+ isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) },
+
+ scrollTo: methodOp(function (x, y) { scrollToCoords(this, x, y) }),
+ getScrollInfo: function() {
+ var scroller = this.display.scroller
+ return {left: scroller.scrollLeft, top: scroller.scrollTop,
+ height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,
+ width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,
+ clientHeight: displayHeight(this), clientWidth: displayWidth(this)}
+ },
+
+ scrollIntoView: methodOp(function(range, margin) {
+ if (range == null) {
+ range = {from: this.doc.sel.primary().head, to: null}
+ if (margin == null) { margin = this.options.cursorScrollMargin }
+ } else if (typeof range == "number") {
+ range = {from: Pos(range, 0), to: null}
+ } else if (range.from == null) {
+ range = {from: range, to: null}
+ }
+ if (!range.to) { range.to = range.from }
+ range.margin = margin || 0
+
+ if (range.from.line != null) {
+ scrollToRange(this, range)
+ } else {
+ scrollToCoordsRange(this, range.from, range.to, range.margin)
+ }
+ }),
+
+ setSize: methodOp(function(width, height) {
+ var this$1 = this;
+
+ var interpret = function (val) { return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; }
+ if (width != null) { this.display.wrapper.style.width = interpret(width) }
+ if (height != null) { this.display.wrapper.style.height = interpret(height) }
+ if (this.options.lineWrapping) { clearLineMeasurementCache(this) }
+ var lineNo = this.display.viewFrom
+ this.doc.iter(lineNo, this.display.viewTo, function (line) {
+ if (line.widgets) { for (var i = 0; i < line.widgets.length; i++)
+ { if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo, "widget"); break } } }
+ ++lineNo
+ })
+ this.curOp.forceUpdate = true
+ signal(this, "refresh", this)
+ }),
+
+ operation: function(f){return runInOp(this, f)},
+ startOperation: function(){return startOperation(this)},
+ endOperation: function(){return endOperation(this)},
+
+ refresh: methodOp(function() {
+ var oldHeight = this.display.cachedTextHeight
+ regChange(this)
+ this.curOp.forceUpdate = true
+ clearCaches(this)
+ scrollToCoords(this, this.doc.scrollLeft, this.doc.scrollTop)
+ updateGutterSpace(this)
+ if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5)
+ { estimateLineHeights(this) }
+ signal(this, "refresh", this)
+ }),
+
+ swapDoc: methodOp(function(doc) {
+ var old = this.doc
+ old.cm = null
+ attachDoc(this, doc)
+ clearCaches(this)
+ this.display.input.reset()
+ scrollToCoords(this, doc.scrollLeft, doc.scrollTop)
+ this.curOp.forceScroll = true
+ signalLater(this, "swapDoc", this, old)
+ return old
+ }),
+
+ getInputField: function(){return this.display.input.getField()},
+ getWrapperElement: function(){return this.display.wrapper},
+ getScrollerElement: function(){return this.display.scroller},
+ getGutterElement: function(){return this.display.gutters}
+ }
+ eventMixin(CodeMirror)
+
+ CodeMirror.registerHelper = function(type, name, value) {
+ if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []} }
+ helpers[type][name] = value
+ }
+ CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
+ CodeMirror.registerHelper(type, name, value)
+ helpers[type]._global.push({pred: predicate, val: value})
+ }
+}
+
+// Used for horizontal relative motion. Dir is -1 or 1 (left or
+// right), unit can be "char", "column" (like char, but doesn't
+// cross line boundaries), "word" (across next word), or "group" (to
+// the start of next group of word or non-word-non-whitespace
+// chars). The visually param controls whether, in right-to-left
+// text, direction 1 means to move towards the next index in the
+// string, or towards the character to the right of the current
+// position. The resulting position will have a hitSide=true
+// property if it reached the end of the document.
+function findPosH(doc, pos, dir, unit, visually) {
+ var oldPos = pos
+ var origDir = dir
+ var lineObj = getLine(doc, pos.line)
+ function findNextLine() {
+ var l = pos.line + dir
+ if (l < doc.first || l >= doc.first + doc.size) { return false }
+ pos = new Pos(l, pos.ch, pos.sticky)
+ return lineObj = getLine(doc, l)
+ }
+ function moveOnce(boundToLine) {
+ var next
+ if (visually) {
+ next = moveVisually(doc.cm, lineObj, pos, dir)
+ } else {
+ next = moveLogically(lineObj, pos, dir)
+ }
+ if (next == null) {
+ if (!boundToLine && findNextLine())
+ { pos = endOfLine(visually, doc.cm, lineObj, pos.line, dir) }
+ else
+ { return false }
+ } else {
+ pos = next
+ }
+ return true
+ }
+
+ if (unit == "char") {
+ moveOnce()
+ } else if (unit == "column") {
+ moveOnce(true)
+ } else if (unit == "word" || unit == "group") {
+ var sawType = null, group = unit == "group"
+ var helper = doc.cm && doc.cm.getHelper(pos, "wordChars")
+ for (var first = true;; first = false) {
+ if (dir < 0 && !moveOnce(!first)) { break }
+ var cur = lineObj.text.charAt(pos.ch) || "\n"
+ var type = isWordChar(cur, helper) ? "w"
+ : group && cur == "\n" ? "n"
+ : !group || /\s/.test(cur) ? null
+ : "p"
+ if (group && !first && !type) { type = "s" }
+ if (sawType && sawType != type) {
+ if (dir < 0) {dir = 1; moveOnce(); pos.sticky = "after"}
+ break
+ }
+
+ if (type) { sawType = type }
+ if (dir > 0 && !moveOnce(!first)) { break }
+ }
+ }
+ var result = skipAtomic(doc, pos, oldPos, origDir, true)
+ if (equalCursorPos(oldPos, result)) { result.hitSide = true }
+ return result
+}
+
+// For relative vertical movement. Dir may be -1 or 1. Unit can be
+// "page" or "line". The resulting position will have a hitSide=true
+// property if it reached the end of the document.
+function findPosV(cm, pos, dir, unit) {
+ var doc = cm.doc, x = pos.left, y
+ if (unit == "page") {
+ var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight)
+ var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3)
+ y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount
+
+ } else if (unit == "line") {
+ y = dir > 0 ? pos.bottom + 3 : pos.top - 3
+ }
+ var target
+ for (;;) {
+ target = coordsChar(cm, x, y)
+ if (!target.outside) { break }
+ if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break }
+ y += dir * 5
+ }
+ return target
+}
+
+// CONTENTEDITABLE INPUT STYLE
+
+var ContentEditableInput = function(cm) {
+ this.cm = cm
+ this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null
+ this.polling = new Delayed()
+ this.composing = null
+ this.gracePeriod = false
+ this.readDOMTimeout = null
+};
+
+ContentEditableInput.prototype.init = function (display) {
+ var this$1 = this;
+
+ var input = this, cm = input.cm
+ var div = input.div = display.lineDiv
+ disableBrowserMagic(div, cm.options.spellcheck)
+
+ on(div, "paste", function (e) {
+ if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }
+ // IE doesn't fire input events, so we schedule a read for the pasted content in this way
+ if (ie_version <= 11) { setTimeout(operation(cm, function () { return this$1.updateFromDOM(); }), 20) }
+ })
+
+ on(div, "compositionstart", function (e) {
+ this$1.composing = {data: e.data, done: false}
+ })
+ on(div, "compositionupdate", function (e) {
+ if (!this$1.composing) { this$1.composing = {data: e.data, done: false} }
+ })
+ on(div, "compositionend", function (e) {
+ if (this$1.composing) {
+ if (e.data != this$1.composing.data) { this$1.readFromDOMSoon() }
+ this$1.composing.done = true
+ }
+ })
+
+ on(div, "touchstart", function () { return input.forceCompositionEnd(); })
+
+ on(div, "input", function () {
+ if (!this$1.composing) { this$1.readFromDOMSoon() }
+ })
+
+ function onCopyCut(e) {
+ if (signalDOMEvent(cm, e)) { return }
+ if (cm.somethingSelected()) {
+ setLastCopied({lineWise: false, text: cm.getSelections()})
+ if (e.type == "cut") { cm.replaceSelection("", null, "cut") }
+ } else if (!cm.options.lineWiseCopyCut) {
+ return
+ } else {
+ var ranges = copyableRanges(cm)
+ setLastCopied({lineWise: true, text: ranges.text})
+ if (e.type == "cut") {
+ cm.operation(function () {
+ cm.setSelections(ranges.ranges, 0, sel_dontScroll)
+ cm.replaceSelection("", null, "cut")
+ })
+ }
+ }
+ if (e.clipboardData) {
+ e.clipboardData.clearData()
+ var content = lastCopied.text.join("\n")
+ // iOS exposes the clipboard API, but seems to discard content inserted into it
+ e.clipboardData.setData("Text", content)
+ if (e.clipboardData.getData("Text") == content) {
+ e.preventDefault()
+ return
+ }
+ }
+ // Old-fashioned briefly-focus-a-textarea hack
+ var kludge = hiddenTextarea(), te = kludge.firstChild
+ cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild)
+ te.value = lastCopied.text.join("\n")
+ var hadFocus = document.activeElement
+ selectInput(te)
+ setTimeout(function () {
+ cm.display.lineSpace.removeChild(kludge)
+ hadFocus.focus()
+ if (hadFocus == div) { input.showPrimarySelection() }
+ }, 50)
+ }
+ on(div, "copy", onCopyCut)
+ on(div, "cut", onCopyCut)
+};
+
+ContentEditableInput.prototype.prepareSelection = function () {
+ var result = prepareSelection(this.cm, false)
+ result.focus = this.cm.state.focused
+ return result
+};
+
+ContentEditableInput.prototype.showSelection = function (info, takeFocus) {
+ if (!info || !this.cm.display.view.length) { return }
+ if (info.focus || takeFocus) { this.showPrimarySelection() }
+ this.showMultipleSelections(info)
+};
+
+ContentEditableInput.prototype.showPrimarySelection = function () {
+ var sel = window.getSelection(), cm = this.cm, prim = cm.doc.sel.primary()
+ var from = prim.from(), to = prim.to()
+
+ if (cm.display.viewTo == cm.display.viewFrom || from.line >= cm.display.viewTo || to.line < cm.display.viewFrom) {
+ sel.removeAllRanges()
+ return
+ }
+
+ var curAnchor = domToPos(cm, sel.anchorNode, sel.anchorOffset)
+ var curFocus = domToPos(cm, sel.focusNode, sel.focusOffset)
+ if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&
+ cmp(minPos(curAnchor, curFocus), from) == 0 &&
+ cmp(maxPos(curAnchor, curFocus), to) == 0)
+ { return }
+
+ var view = cm.display.view
+ var start = (from.line >= cm.display.viewFrom && posToDOM(cm, from)) ||
+ {node: view[0].measure.map[2], offset: 0}
+ var end = to.line < cm.display.viewTo && posToDOM(cm, to)
+ if (!end) {
+ var measure = view[view.length - 1].measure
+ var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map
+ end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]}
+ }
+
+ if (!start || !end) {
+ sel.removeAllRanges()
+ return
+ }
+
+ var old = sel.rangeCount && sel.getRangeAt(0), rng
+ try { rng = range(start.node, start.offset, end.offset, end.node) }
+ catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible
+ if (rng) {
+ if (!gecko && cm.state.focused) {
+ sel.collapse(start.node, start.offset)
+ if (!rng.collapsed) {
+ sel.removeAllRanges()
+ sel.addRange(rng)
+ }
+ } else {
+ sel.removeAllRanges()
+ sel.addRange(rng)
+ }
+ if (old && sel.anchorNode == null) { sel.addRange(old) }
+ else if (gecko) { this.startGracePeriod() }
+ }
+ this.rememberSelection()
+};
+
+ContentEditableInput.prototype.startGracePeriod = function () {
+ var this$1 = this;
+
+ clearTimeout(this.gracePeriod)
+ this.gracePeriod = setTimeout(function () {
+ this$1.gracePeriod = false
+ if (this$1.selectionChanged())
+ { this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }) }
+ }, 20)
+};
+
+ContentEditableInput.prototype.showMultipleSelections = function (info) {
+ removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors)
+ removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection)
+};
+
+ContentEditableInput.prototype.rememberSelection = function () {
+ var sel = window.getSelection()
+ this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset
+ this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset
+};
+
+ContentEditableInput.prototype.selectionInEditor = function () {
+ var sel = window.getSelection()
+ if (!sel.rangeCount) { return false }
+ var node = sel.getRangeAt(0).commonAncestorContainer
+ return contains(this.div, node)
+};
+
+ContentEditableInput.prototype.focus = function () {
+ if (this.cm.options.readOnly != "nocursor") {
+ if (!this.selectionInEditor())
+ { this.showSelection(this.prepareSelection(), true) }
+ this.div.focus()
+ }
+};
+ContentEditableInput.prototype.blur = function () { this.div.blur() };
+ContentEditableInput.prototype.getField = function () { return this.div };
+
+ContentEditableInput.prototype.supportsTouch = function () { return true };
+
+ContentEditableInput.prototype.receivedFocus = function () {
+ var input = this
+ if (this.selectionInEditor())
+ { this.pollSelection() }
+ else
+ { runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }) }
+
+ function poll() {
+ if (input.cm.state.focused) {
+ input.pollSelection()
+ input.polling.set(input.cm.options.pollInterval, poll)
+ }
+ }
+ this.polling.set(this.cm.options.pollInterval, poll)
+};
+
+ContentEditableInput.prototype.selectionChanged = function () {
+ var sel = window.getSelection()
+ return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||
+ sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset
+};
+
+ContentEditableInput.prototype.pollSelection = function () {
+ if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) { return }
+ var sel = window.getSelection(), cm = this.cm
+ // On Android Chrome (version 56, at least), backspacing into an
+ // uneditable block element will put the cursor in that element,
+ // and then, because it's not editable, hide the virtual keyboard.
+ // Because Android doesn't allow us to actually detect backspace
+ // presses in a sane way, this code checks for when that happens
+ // and simulates a backspace press in this case.
+ if (android && chrome && this.cm.options.gutters.length && isInGutter(sel.anchorNode)) {
+ this.cm.triggerOnKeyDown({type: "keydown", keyCode: 8, preventDefault: Math.abs})
+ this.blur()
+ this.focus()
+ return
+ }
+ if (this.composing) { return }
+ this.rememberSelection()
+ var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset)
+ var head = domToPos(cm, sel.focusNode, sel.focusOffset)
+ if (anchor && head) { runInOp(cm, function () {
+ setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll)
+ if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true }
+ }) }
+};
+
+ContentEditableInput.prototype.pollContent = function () {
+ if (this.readDOMTimeout != null) {
+ clearTimeout(this.readDOMTimeout)
+ this.readDOMTimeout = null
+ }
+
+ var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary()
+ var from = sel.from(), to = sel.to()
+ if (from.ch == 0 && from.line > cm.firstLine())
+ { from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length) }
+ if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine())
+ { to = Pos(to.line + 1, 0) }
+ if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false }
+
+ var fromIndex, fromLine, fromNode
+ if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {
+ fromLine = lineNo(display.view[0].line)
+ fromNode = display.view[0].node
+ } else {
+ fromLine = lineNo(display.view[fromIndex].line)
+ fromNode = display.view[fromIndex - 1].node.nextSibling
+ }
+ var toIndex = findViewIndex(cm, to.line)
+ var toLine, toNode
+ if (toIndex == display.view.length - 1) {
+ toLine = display.viewTo - 1
+ toNode = display.lineDiv.lastChild
+ } else {
+ toLine = lineNo(display.view[toIndex + 1].line) - 1
+ toNode = display.view[toIndex + 1].node.previousSibling
+ }
+
+ if (!fromNode) { return false }
+ var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine))
+ var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length))
+ while (newText.length > 1 && oldText.length > 1) {
+ if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine-- }
+ else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++ }
+ else { break }
+ }
+
+ var cutFront = 0, cutEnd = 0
+ var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length)
+ while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))
+ { ++cutFront }
+ var newBot = lst(newText), oldBot = lst(oldText)
+ var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),
+ oldBot.length - (oldText.length == 1 ? cutFront : 0))
+ while (cutEnd < maxCutEnd &&
+ newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))
+ { ++cutEnd }
+ // Try to move start of change to start of selection if ambiguous
+ if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) {
+ while (cutFront && cutFront > from.ch &&
+ newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) {
+ cutFront--
+ cutEnd++
+ }
+ }
+
+ newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\u200b+/, "")
+ newText[0] = newText[0].slice(cutFront).replace(/\u200b+$/, "")
+
+ var chFrom = Pos(fromLine, cutFront)
+ var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0)
+ if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {
+ replaceRange(cm.doc, newText, chFrom, chTo, "+input")
+ return true
+ }
+};
+
+ContentEditableInput.prototype.ensurePolled = function () {
+ this.forceCompositionEnd()
+};
+ContentEditableInput.prototype.reset = function () {
+ this.forceCompositionEnd()
+};
+ContentEditableInput.prototype.forceCompositionEnd = function () {
+ if (!this.composing) { return }
+ clearTimeout(this.readDOMTimeout)
+ this.composing = null
+ this.updateFromDOM()
+ this.div.blur()
+ this.div.focus()
+};
+ContentEditableInput.prototype.readFromDOMSoon = function () {
+ var this$1 = this;
+
+ if (this.readDOMTimeout != null) { return }
+ this.readDOMTimeout = setTimeout(function () {
+ this$1.readDOMTimeout = null
+ if (this$1.composing) {
+ if (this$1.composing.done) { this$1.composing = null }
+ else { return }
+ }
+ this$1.updateFromDOM()
+ }, 80)
+};
+
+ContentEditableInput.prototype.updateFromDOM = function () {
+ var this$1 = this;
+
+ if (this.cm.isReadOnly() || !this.pollContent())
+ { runInOp(this.cm, function () { return regChange(this$1.cm); }) }
+};
+
+ContentEditableInput.prototype.setUneditable = function (node) {
+ node.contentEditable = "false"
+};
+
+ContentEditableInput.prototype.onKeyPress = function (e) {
+ if (e.charCode == 0) { return }
+ e.preventDefault()
+ if (!this.cm.isReadOnly())
+ { operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0) }
+};
+
+ContentEditableInput.prototype.readOnlyChanged = function (val) {
+ this.div.contentEditable = String(val != "nocursor")
+};
+
+ContentEditableInput.prototype.onContextMenu = function () {};
+ContentEditableInput.prototype.resetPosition = function () {};
+
+ContentEditableInput.prototype.needsContentAttribute = true
+
+function posToDOM(cm, pos) {
+ var view = findViewForLine(cm, pos.line)
+ if (!view || view.hidden) { return null }
+ var line = getLine(cm.doc, pos.line)
+ var info = mapFromLineView(view, line, pos.line)
+
+ var order = getOrder(line, cm.doc.direction), side = "left"
+ if (order) {
+ var partPos = getBidiPartAt(order, pos.ch)
+ side = partPos % 2 ? "right" : "left"
+ }
+ var result = nodeAndOffsetInLineMap(info.map, pos.ch, side)
+ result.offset = result.collapse == "right" ? result.end : result.start
+ return result
+}
+
+function isInGutter(node) {
+ for (var scan = node; scan; scan = scan.parentNode)
+ { if (/CodeMirror-gutter-wrapper/.test(scan.className)) { return true } }
+ return false
+}
+
+function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos }
+
+function domTextBetween(cm, from, to, fromLine, toLine) {
+ var text = "", closing = false, lineSep = cm.doc.lineSeparator()
+ function recognizeMarker(id) { return function (marker) { return marker.id == id; } }
+ function close() {
+ if (closing) {
+ text += lineSep
+ closing = false
+ }
+ }
+ function addText(str) {
+ if (str) {
+ close()
+ text += str
+ }
+ }
+ function walk(node) {
+ if (node.nodeType == 1) {
+ var cmText = node.getAttribute("cm-text")
+ if (cmText != null) {
+ addText(cmText || node.textContent.replace(/\u200b/g, ""))
+ return
+ }
+ var markerID = node.getAttribute("cm-marker"), range
+ if (markerID) {
+ var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID))
+ if (found.length && (range = found[0].find(0)))
+ { addText(getBetween(cm.doc, range.from, range.to).join(lineSep)) }
+ return
+ }
+ if (node.getAttribute("contenteditable") == "false") { return }
+ var isBlock = /^(pre|div|p)$/i.test(node.nodeName)
+ if (isBlock) { close() }
+ for (var i = 0; i < node.childNodes.length; i++)
+ { walk(node.childNodes[i]) }
+ if (isBlock) { closing = true }
+ } else if (node.nodeType == 3) {
+ addText(node.nodeValue)
+ }
+ }
+ for (;;) {
+ walk(from)
+ if (from == to) { break }
+ from = from.nextSibling
+ }
+ return text
+}
+
+function domToPos(cm, node, offset) {
+ var lineNode
+ if (node == cm.display.lineDiv) {
+ lineNode = cm.display.lineDiv.childNodes[offset]
+ if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) }
+ node = null; offset = 0
+ } else {
+ for (lineNode = node;; lineNode = lineNode.parentNode) {
+ if (!lineNode || lineNode == cm.display.lineDiv) { return null }
+ if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break }
+ }
+ }
+ for (var i = 0; i < cm.display.view.length; i++) {
+ var lineView = cm.display.view[i]
+ if (lineView.node == lineNode)
+ { return locateNodeInLineView(lineView, node, offset) }
+ }
+}
+
+function locateNodeInLineView(lineView, node, offset) {
+ var wrapper = lineView.text.firstChild, bad = false
+ if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) }
+ if (node == wrapper) {
+ bad = true
+ node = wrapper.childNodes[offset]
+ offset = 0
+ if (!node) {
+ var line = lineView.rest ? lst(lineView.rest) : lineView.line
+ return badPos(Pos(lineNo(line), line.text.length), bad)
+ }
+ }
+
+ var textNode = node.nodeType == 3 ? node : null, topNode = node
+ if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
+ textNode = node.firstChild
+ if (offset) { offset = textNode.nodeValue.length }
+ }
+ while (topNode.parentNode != wrapper) { topNode = topNode.parentNode }
+ var measure = lineView.measure, maps = measure.maps
+
+ function find(textNode, topNode, offset) {
+ for (var i = -1; i < (maps ? maps.length : 0); i++) {
+ var map = i < 0 ? measure.map : maps[i]
+ for (var j = 0; j < map.length; j += 3) {
+ var curNode = map[j + 2]
+ if (curNode == textNode || curNode == topNode) {
+ var line = lineNo(i < 0 ? lineView.line : lineView.rest[i])
+ var ch = map[j] + offset
+ if (offset < 0 || curNode != textNode) { ch = map[j + (offset ? 1 : 0)] }
+ return Pos(line, ch)
+ }
+ }
+ }
+ }
+ var found = find(textNode, topNode, offset)
+ if (found) { return badPos(found, bad) }
+
+ // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems
+ for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {
+ found = find(after, after.firstChild, 0)
+ if (found)
+ { return badPos(Pos(found.line, found.ch - dist), bad) }
+ else
+ { dist += after.textContent.length }
+ }
+ for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) {
+ found = find(before, before.firstChild, -1)
+ if (found)
+ { return badPos(Pos(found.line, found.ch + dist$1), bad) }
+ else
+ { dist$1 += before.textContent.length }
+ }
+}
+
+// TEXTAREA INPUT STYLE
+
+var TextareaInput = function(cm) {
+ this.cm = cm
+ // See input.poll and input.reset
+ this.prevInput = ""
+
+ // Flag that indicates whether we expect input to appear real soon
+ // now (after some event like 'keypress' or 'input') and are
+ // polling intensively.
+ this.pollingFast = false
+ // Self-resetting timeout for the poller
+ this.polling = new Delayed()
+ // Used to work around IE issue with selection being forgotten when focus moves away from textarea
+ this.hasSelection = false
+ this.composing = null
+};
+
+TextareaInput.prototype.init = function (display) {
+ var this$1 = this;
+
+ var input = this, cm = this.cm
+
+ // Wraps and hides input textarea
+ var div = this.wrapper = hiddenTextarea()
+ // The semihidden textarea that is focused when the editor is
+ // focused, and receives input.
+ var te = this.textarea = div.firstChild
+ display.wrapper.insertBefore(div, display.wrapper.firstChild)
+
+ // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)
+ if (ios) { te.style.width = "0px" }
+
+ on(te, "input", function () {
+ if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null }
+ input.poll()
+ })
+
+ on(te, "paste", function (e) {
+ if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }
+
+ cm.state.pasteIncoming = true
+ input.fastPoll()
+ })
+
+ function prepareCopyCut(e) {
+ if (signalDOMEvent(cm, e)) { return }
+ if (cm.somethingSelected()) {
+ setLastCopied({lineWise: false, text: cm.getSelections()})
+ } else if (!cm.options.lineWiseCopyCut) {
+ return
+ } else {
+ var ranges = copyableRanges(cm)
+ setLastCopied({lineWise: true, text: ranges.text})
+ if (e.type == "cut") {
+ cm.setSelections(ranges.ranges, null, sel_dontScroll)
+ } else {
+ input.prevInput = ""
+ te.value = ranges.text.join("\n")
+ selectInput(te)
+ }
+ }
+ if (e.type == "cut") { cm.state.cutIncoming = true }
+ }
+ on(te, "cut", prepareCopyCut)
+ on(te, "copy", prepareCopyCut)
+
+ on(display.scroller, "paste", function (e) {
+ if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return }
+ cm.state.pasteIncoming = true
+ input.focus()
+ })
+
+ // Prevent normal selection in the editor (we handle our own)
+ on(display.lineSpace, "selectstart", function (e) {
+ if (!eventInWidget(display, e)) { e_preventDefault(e) }
+ })
+
+ on(te, "compositionstart", function () {
+ var start = cm.getCursor("from")
+ if (input.composing) { input.composing.range.clear() }
+ input.composing = {
+ start: start,
+ range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"})
+ }
+ })
+ on(te, "compositionend", function () {
+ if (input.composing) {
+ input.poll()
+ input.composing.range.clear()
+ input.composing = null
+ }
+ })
+};
+
+TextareaInput.prototype.prepareSelection = function () {
+ // Redraw the selection and/or cursor
+ var cm = this.cm, display = cm.display, doc = cm.doc
+ var result = prepareSelection(cm)
+
+ // Move the hidden textarea near the cursor to prevent scrolling artifacts
+ if (cm.options.moveInputWithCursor) {
+ var headPos = cursorCoords(cm, doc.sel.primary().head, "div")
+ var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect()
+ result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
+ headPos.top + lineOff.top - wrapOff.top))
+ result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
+ headPos.left + lineOff.left - wrapOff.left))
+ }
+
+ return result
+};
+
+TextareaInput.prototype.showSelection = function (drawn) {
+ var cm = this.cm, display = cm.display
+ removeChildrenAndAdd(display.cursorDiv, drawn.cursors)
+ removeChildrenAndAdd(display.selectionDiv, drawn.selection)
+ if (drawn.teTop != null) {
+ this.wrapper.style.top = drawn.teTop + "px"
+ this.wrapper.style.left = drawn.teLeft + "px"
+ }
+};
+
+// Reset the input to correspond to the selection (or to be empty,
+// when not typing and nothing is selected)
+TextareaInput.prototype.reset = function (typing) {
+ if (this.contextMenuPending || this.composing) { return }
+ var cm = this.cm
+ if (cm.somethingSelected()) {
+ this.prevInput = ""
+ var content = cm.getSelection()
+ this.textarea.value = content
+ if (cm.state.focused) { selectInput(this.textarea) }
+ if (ie && ie_version >= 9) { this.hasSelection = content }
+ } else if (!typing) {
+ this.prevInput = this.textarea.value = ""
+ if (ie && ie_version >= 9) { this.hasSelection = null }
+ }
+};
+
+TextareaInput.prototype.getField = function () { return this.textarea };
+
+TextareaInput.prototype.supportsTouch = function () { return false };
+
+TextareaInput.prototype.focus = function () {
+ if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) {
+ try { this.textarea.focus() }
+ catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM
+ }
+};
+
+TextareaInput.prototype.blur = function () { this.textarea.blur() };
+
+TextareaInput.prototype.resetPosition = function () {
+ this.wrapper.style.top = this.wrapper.style.left = 0
+};
+
+TextareaInput.prototype.receivedFocus = function () { this.slowPoll() };
+
+// Poll for input changes, using the normal rate of polling. This
+// runs as long as the editor is focused.
+TextareaInput.prototype.slowPoll = function () {
+ var this$1 = this;
+
+ if (this.pollingFast) { return }
+ this.polling.set(this.cm.options.pollInterval, function () {
+ this$1.poll()
+ if (this$1.cm.state.focused) { this$1.slowPoll() }
+ })
+};
+
+// When an event has just come in that is likely to add or change
+// something in the input textarea, we poll faster, to ensure that
+// the change appears on the screen quickly.
+TextareaInput.prototype.fastPoll = function () {
+ var missed = false, input = this
+ input.pollingFast = true
+ function p() {
+ var changed = input.poll()
+ if (!changed && !missed) {missed = true; input.polling.set(60, p)}
+ else {input.pollingFast = false; input.slowPoll()}
+ }
+ input.polling.set(20, p)
+};
+
+// Read input from the textarea, and update the document to match.
+// When something is selected, it is present in the textarea, and
+// selected (unless it is huge, in which case a placeholder is
+// used). When nothing is selected, the cursor sits after previously
+// seen text (can be empty), which is stored in prevInput (we must
+// not reset the textarea when typing, because that breaks IME).
+TextareaInput.prototype.poll = function () {
+ var this$1 = this;
+
+ var cm = this.cm, input = this.textarea, prevInput = this.prevInput
+ // Since this is called a *lot*, try to bail out as cheaply as
+ // possible when it is clear that nothing happened. hasSelection
+ // will be the case when there is a lot of text in the textarea,
+ // in which case reading its value would be expensive.
+ if (this.contextMenuPending || !cm.state.focused ||
+ (hasSelection(input) && !prevInput && !this.composing) ||
+ cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq)
+ { return false }
+
+ var text = input.value
+ // If nothing changed, bail.
+ if (text == prevInput && !cm.somethingSelected()) { return false }
+ // Work around nonsensical selection resetting in IE9/10, and
+ // inexplicable appearance of private area unicode characters on
+ // some key combos in Mac (#2689).
+ if (ie && ie_version >= 9 && this.hasSelection === text ||
+ mac && /[\uf700-\uf7ff]/.test(text)) {
+ cm.display.input.reset()
+ return false
+ }
+
+ if (cm.doc.sel == cm.display.selForContextMenu) {
+ var first = text.charCodeAt(0)
+ if (first == 0x200b && !prevInput) { prevInput = "\u200b" }
+ if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo") }
+ }
+ // Find the part of the input that is actually new
+ var same = 0, l = Math.min(prevInput.length, text.length)
+ while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same }
+
+ runInOp(cm, function () {
+ applyTextInput(cm, text.slice(same), prevInput.length - same,
+ null, this$1.composing ? "*compose" : null)
+
+ // Don't leave long text in the textarea, since it makes further polling slow
+ if (text.length > 1000 || text.indexOf("\n") > -1) { input.value = this$1.prevInput = "" }
+ else { this$1.prevInput = text }
+
+ if (this$1.composing) {
+ this$1.composing.range.clear()
+ this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor("to"),
+ {className: "CodeMirror-composing"})
+ }
+ })
+ return true
+};
+
+TextareaInput.prototype.ensurePolled = function () {
+ if (this.pollingFast && this.poll()) { this.pollingFast = false }
+};
+
+TextareaInput.prototype.onKeyPress = function () {
+ if (ie && ie_version >= 9) { this.hasSelection = null }
+ this.fastPoll()
+};
+
+TextareaInput.prototype.onContextMenu = function (e) {
+ var input = this, cm = input.cm, display = cm.display, te = input.textarea
+ var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop
+ if (!pos || presto) { return } // Opera is difficult.
+
+ // Reset the current text selection only if the click is done outside of the selection
+ // and 'resetSelectionOnContextMenu' option is true.
+ var reset = cm.options.resetSelectionOnContextMenu
+ if (reset && cm.doc.sel.contains(pos) == -1)
+ { operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll) }
+
+ var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText
+ input.wrapper.style.cssText = "position: absolute"
+ var wrapperBox = input.wrapper.getBoundingClientRect()
+ te.style.cssText = "position: absolute; width: 30px; height: 30px;\n top: " + (e.clientY - wrapperBox.top - 5) + "px; left: " + (e.clientX - wrapperBox.left - 5) + "px;\n z-index: 1000; background: " + (ie ? "rgba(255, 255, 255, .05)" : "transparent") + ";\n outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);"
+ var oldScrollY
+ if (webkit) { oldScrollY = window.scrollY } // Work around Chrome issue (#2712)
+ display.input.focus()
+ if (webkit) { window.scrollTo(null, oldScrollY) }
+ display.input.reset()
+ // Adds "Select all" to context menu in FF
+ if (!cm.somethingSelected()) { te.value = input.prevInput = " " }
+ input.contextMenuPending = true
+ display.selForContextMenu = cm.doc.sel
+ clearTimeout(display.detectingSelectAll)
+
+ // Select-all will be greyed out if there's nothing to select, so
+ // this adds a zero-width space so that we can later check whether
+ // it got selected.
+ function prepareSelectAllHack() {
+ if (te.selectionStart != null) {
+ var selected = cm.somethingSelected()
+ var extval = "\u200b" + (selected ? te.value : "")
+ te.value = "\u21da" // Used to catch context-menu undo
+ te.value = extval
+ input.prevInput = selected ? "" : "\u200b"
+ te.selectionStart = 1; te.selectionEnd = extval.length
+ // Re-set this, in case some other handler touched the
+ // selection in the meantime.
+ display.selForContextMenu = cm.doc.sel
+ }
+ }
+ function rehide() {
+ input.contextMenuPending = false
+ input.wrapper.style.cssText = oldWrapperCSS
+ te.style.cssText = oldCSS
+ if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos) }
+
+ // Try to detect the user choosing select-all
+ if (te.selectionStart != null) {
+ if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack() }
+ var i = 0, poll = function () {
+ if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&
+ te.selectionEnd > 0 && input.prevInput == "\u200b") {
+ operation(cm, selectAll)(cm)
+ } else if (i++ < 10) {
+ display.detectingSelectAll = setTimeout(poll, 500)
+ } else {
+ display.selForContextMenu = null
+ display.input.reset()
+ }
+ }
+ display.detectingSelectAll = setTimeout(poll, 200)
+ }
+ }
+
+ if (ie && ie_version >= 9) { prepareSelectAllHack() }
+ if (captureRightClick) {
+ e_stop(e)
+ var mouseup = function () {
+ off(window, "mouseup", mouseup)
+ setTimeout(rehide, 20)
+ }
+ on(window, "mouseup", mouseup)
+ } else {
+ setTimeout(rehide, 50)
+ }
+};
+
+TextareaInput.prototype.readOnlyChanged = function (val) {
+ if (!val) { this.reset() }
+ this.textarea.disabled = val == "nocursor"
+};
+
+TextareaInput.prototype.setUneditable = function () {};
+
+TextareaInput.prototype.needsContentAttribute = false
+
+function fromTextArea(textarea, options) {
+ options = options ? copyObj(options) : {}
+ options.value = textarea.value
+ if (!options.tabindex && textarea.tabIndex)
+ { options.tabindex = textarea.tabIndex }
+ if (!options.placeholder && textarea.placeholder)
+ { options.placeholder = textarea.placeholder }
+ // Set autofocus to true if this textarea is focused, or if it has
+ // autofocus and no other element is focused.
+ if (options.autofocus == null) {
+ var hasFocus = activeElt()
+ options.autofocus = hasFocus == textarea ||
+ textarea.getAttribute("autofocus") != null && hasFocus == document.body
+ }
+
+ function save() {textarea.value = cm.getValue()}
+
+ var realSubmit
+ if (textarea.form) {
+ on(textarea.form, "submit", save)
+ // Deplorable hack to make the submit method do the right thing.
+ if (!options.leaveSubmitMethodAlone) {
+ var form = textarea.form
+ realSubmit = form.submit
+ try {
+ var wrappedSubmit = form.submit = function () {
+ save()
+ form.submit = realSubmit
+ form.submit()
+ form.submit = wrappedSubmit
+ }
+ } catch(e) {}
+ }
+ }
+
+ options.finishInit = function (cm) {
+ cm.save = save
+ cm.getTextArea = function () { return textarea; }
+ cm.toTextArea = function () {
+ cm.toTextArea = isNaN // Prevent this from being ran twice
+ save()
+ textarea.parentNode.removeChild(cm.getWrapperElement())
+ textarea.style.display = ""
+ if (textarea.form) {
+ off(textarea.form, "submit", save)
+ if (typeof textarea.form.submit == "function")
+ { textarea.form.submit = realSubmit }
+ }
+ }
+ }
+
+ textarea.style.display = "none"
+ var cm = CodeMirror(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); },
+ options)
+ return cm
+}
+
+function addLegacyProps(CodeMirror) {
+ CodeMirror.off = off
+ CodeMirror.on = on
+ CodeMirror.wheelEventPixels = wheelEventPixels
+ CodeMirror.Doc = Doc
+ CodeMirror.splitLines = splitLinesAuto
+ CodeMirror.countColumn = countColumn
+ CodeMirror.findColumn = findColumn
+ CodeMirror.isWordChar = isWordCharBasic
+ CodeMirror.Pass = Pass
+ CodeMirror.signal = signal
+ CodeMirror.Line = Line
+ CodeMirror.changeEnd = changeEnd
+ CodeMirror.scrollbarModel = scrollbarModel
+ CodeMirror.Pos = Pos
+ CodeMirror.cmpPos = cmp
+ CodeMirror.modes = modes
+ CodeMirror.mimeModes = mimeModes
+ CodeMirror.resolveMode = resolveMode
+ CodeMirror.getMode = getMode
+ CodeMirror.modeExtensions = modeExtensions
+ CodeMirror.extendMode = extendMode
+ CodeMirror.copyState = copyState
+ CodeMirror.startState = startState
+ CodeMirror.innerMode = innerMode
+ CodeMirror.commands = commands
+ CodeMirror.keyMap = keyMap
+ CodeMirror.keyName = keyName
+ CodeMirror.isModifierKey = isModifierKey
+ CodeMirror.lookupKey = lookupKey
+ CodeMirror.normalizeKeyMap = normalizeKeyMap
+ CodeMirror.StringStream = StringStream
+ CodeMirror.SharedTextMarker = SharedTextMarker
+ CodeMirror.TextMarker = TextMarker
+ CodeMirror.LineWidget = LineWidget
+ CodeMirror.e_preventDefault = e_preventDefault
+ CodeMirror.e_stopPropagation = e_stopPropagation
+ CodeMirror.e_stop = e_stop
+ CodeMirror.addClass = addClass
+ CodeMirror.contains = contains
+ CodeMirror.rmClass = rmClass
+ CodeMirror.keyNames = keyNames
+}
+
+// EDITOR CONSTRUCTOR
+
+defineOptions(CodeMirror)
+
+addEditorMethods(CodeMirror)
+
+// Set up methods on CodeMirror's prototype to redirect to the editor's document.
+var dontDelegate = "iter insert remove copy getEditor constructor".split(" ")
+for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
+ { CodeMirror.prototype[prop] = (function(method) {
+ return function() {return method.apply(this.doc, arguments)}
+ })(Doc.prototype[prop]) } }
+
+eventMixin(Doc)
+
+// INPUT HANDLING
+
+CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput}
+
+// MODE DEFINITION AND QUERYING
+
+// Extra arguments are stored as the mode's dependencies, which is
+// used by (legacy) mechanisms like loadmode.js to automatically
+// load a mode. (Preferred mechanism is the require/define calls.)
+CodeMirror.defineMode = function(name/*, mode, …*/) {
+ if (!CodeMirror.defaults.mode && name != "null") { CodeMirror.defaults.mode = name }
+ defineMode.apply(this, arguments)
+}
+
+CodeMirror.defineMIME = defineMIME
+
+// Minimal default mode.
+CodeMirror.defineMode("null", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); })
+CodeMirror.defineMIME("text/plain", "null")
+
+// EXTENSIONS
+
+CodeMirror.defineExtension = function (name, func) {
+ CodeMirror.prototype[name] = func
+}
+CodeMirror.defineDocExtension = function (name, func) {
+ Doc.prototype[name] = func
+}
+
+CodeMirror.fromTextArea = fromTextArea
+
+addLegacyProps(CodeMirror)
+
+CodeMirror.version = "5.30.0"
+
+return CodeMirror;
+
+}))); \ No newline at end of file
diff --git a/public/js/vendor/codemirror/mode/yaml.js b/public/js/vendor/codemirror/mode/yaml.js
new file mode 100644
index 0000000..59c0ecd
--- /dev/null
+++ b/public/js/vendor/codemirror/mode/yaml.js
@@ -0,0 +1,118 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("yaml", function() {
+
+ var cons = ['true', 'false', 'on', 'off', 'yes', 'no'];
+ var keywordRegex = new RegExp("\\b(("+cons.join(")|(")+"))$", 'i');
+
+ return {
+ token: function(stream, state) {
+ var ch = stream.peek();
+ var esc = state.escaped;
+ state.escaped = false;
+ /* comments */
+ if (ch == "#" && (stream.pos == 0 || /\s/.test(stream.string.charAt(stream.pos - 1)))) {
+ stream.skipToEnd();
+ return "comment";
+ }
+
+ if (stream.match(/^('([^']|\\.)*'?|"([^"]|\\.)*"?)/))
+ return "string";
+
+ if (state.literal && stream.indentation() > state.keyCol) {
+ stream.skipToEnd(); return "string";
+ } else if (state.literal) { state.literal = false; }
+ if (stream.sol()) {
+ state.keyCol = 0;
+ state.pair = false;
+ state.pairStart = false;
+ /* document start */
+ if(stream.match(/---/)) { return "def"; }
+ /* document end */
+ if (stream.match(/\.\.\./)) { return "def"; }
+ /* array list item */
+ if (stream.match(/\s*-\s+/)) { return 'meta'; }
+ }
+ /* inline pairs/lists */
+ if (stream.match(/^(\{|\}|\[|\])/)) {
+ if (ch == '{')
+ state.inlinePairs++;
+ else if (ch == '}')
+ state.inlinePairs--;
+ else if (ch == '[')
+ state.inlineList++;
+ else
+ state.inlineList--;
+ return 'meta';
+ }
+
+ /* list seperator */
+ if (state.inlineList > 0 && !esc && ch == ',') {
+ stream.next();
+ return 'meta';
+ }
+ /* pairs seperator */
+ if (state.inlinePairs > 0 && !esc && ch == ',') {
+ state.keyCol = 0;
+ state.pair = false;
+ state.pairStart = false;
+ stream.next();
+ return 'meta';
+ }
+
+ /* start of value of a pair */
+ if (state.pairStart) {
+ /* block literals */
+ if (stream.match(/^\s*(\||\>)\s*/)) { state.literal = true; return 'meta'; };
+ /* references */
+ if (stream.match(/^\s*(\&|\*)[a-z0-9\._-]+\b/i)) { return 'variable-2'; }
+ /* numbers */
+ if (state.inlinePairs == 0 && stream.match(/^\s*-?[0-9\.\,]+\s?$/)) { return 'number'; }
+ if (state.inlinePairs > 0 && stream.match(/^\s*-?[0-9\.\,]+\s?(?=(,|}))/)) { return 'number'; }
+ /* keywords */
+ if (stream.match(keywordRegex)) { return 'keyword'; }
+ }
+
+ /* pairs (associative arrays) -> key */
+ if (!state.pair && stream.match(/^\s*(?:[,\[\]{}&*!|>'"%@`][^\s'":]|[^,\[\]{}#&*!|>'"%@`])[^#]*?(?=\s*:($|\s))/)) {
+ state.pair = true;
+ state.keyCol = stream.indentation();
+ return "atom";
+ }
+ if (state.pair && stream.match(/^:\s*/)) { state.pairStart = true; return 'meta'; }
+
+ /* nothing found, continue */
+ state.pairStart = false;
+ state.escaped = (ch == '\\');
+ stream.next();
+ return null;
+ },
+ startState: function() {
+ return {
+ pair: false,
+ pairStart: false,
+ keyCol: 0,
+ inlinePairs: 0,
+ inlineList: 0,
+ literal: false,
+ escaped: false
+ };
+ }
+ };
+});
+
+CodeMirror.defineMIME("text/x-yaml", "yaml");
+CodeMirror.defineMIME("text/yaml", "yaml");
+
+});
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-28 09:35:31 +0000