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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
import { isWasm, getWasmLineNumberFormatter, renderWasmText } from "../wasm";
import { isMinified } from "../isMinified";
import { resizeBreakpointGutter, resizeToggleButton } from "../ui";
import { javascriptLikeExtensions } from "../source";
const sourceDocs = new Map();
export function getDocument(key) {
return sourceDocs.get(key);
}
export function hasDocument(key) {
return sourceDocs.has(key);
}
export function setDocument(key, doc) {
sourceDocs.set(key, doc);
}
export function removeDocument(key) {
sourceDocs.delete(key);
}
export function clearDocuments() {
sourceDocs.clear();
}
export function clearDocumentsForSources(sources) {
for (const source of sources) {
sourceDocs.delete(source.id);
}
}
export function resetLineNumberFormat(editor) {
const cm = editor.codeMirror;
cm.setOption("lineNumberFormatter", number => number);
resizeBreakpointGutter(cm);
resizeToggleButton(cm);
}
function updateLineNumberFormat(editor, sourceId) {
if (!isWasm(sourceId)) {
resetLineNumberFormat(editor);
return;
}
const cm = editor.codeMirror;
const lineNumberFormatter = getWasmLineNumberFormatter(sourceId);
cm.setOption("lineNumberFormatter", lineNumberFormatter);
resizeBreakpointGutter(cm);
resizeToggleButton(cm);
}
const contentTypeModeMap = new Map([
["text/javascript", { name: "javascript" }],
["text/typescript", { name: "javascript", typescript: true }],
["text/coffeescript", { name: "coffeescript" }],
[
"text/typescript-jsx",
{
name: "jsx",
base: { name: "javascript", typescript: true },
},
],
["text/jsx", { name: "jsx" }],
["text/x-elm", { name: "elm" }],
["text/x-clojure", { name: "clojure" }],
["text/x-clojurescript", { name: "clojure" }],
["text/wasm", { name: "text" }],
["text/html", { name: "htmlmixed" }],
["text/plain", { name: "text" }],
]);
const nonJSLanguageExtensionMap = new Map([
["c", { name: "text/x-csrc" }],
["kt", { name: "text/x-kotlin" }],
["cpp", { name: "text/x-c++src" }],
["m", { name: "text/x-objectivec" }],
["rs", { name: "text/x-rustsrc" }],
["hx", { name: "text/x-haxe" }],
]);
/**
* Returns Code Mirror mode for source content type
*/
// eslint-disable-next-line complexity
export function getMode(source, sourceTextContent, symbols) {
const content = sourceTextContent.value;
// Disable modes for minified files with 1+ million characters (See Bug 1569829).
if (
content.type === "text" &&
isMinified(source, sourceTextContent) &&
content.value.length > 1000000
) {
return contentTypeModeMap.get("text/plain");
}
if (content.type !== "text") {
return contentTypeModeMap.get("text/plain");
}
const extension = source.displayURL.fileExtension;
if (extension === "jsx" || (symbols && symbols.hasJsx)) {
if (symbols && symbols.hasTypes) {
return contentTypeModeMap.get("text/typescript-jsx");
}
return contentTypeModeMap.get("text/jsx");
}
if (symbols && symbols.hasTypes) {
if (symbols.hasJsx) {
return contentTypeModeMap.get("text/typescript-jsx");
}
return contentTypeModeMap.get("text/typescript");
}
// check for C and other non JS languages
if (nonJSLanguageExtensionMap.has(extension)) {
return nonJSLanguageExtensionMap.get(extension);
}
// if the url ends with a known Javascript-like URL, provide JavaScript mode.
if (javascriptLikeExtensions.has(extension)) {
return contentTypeModeMap.get("text/javascript");
}
const { contentType, value: text } = content;
// Use HTML mode for files in which the first non whitespace
// character is `<` regardless of extension.
const isHTMLLike = () => text.match(/^\s*</);
if (!contentType) {
if (isHTMLLike()) {
return contentTypeModeMap.get("text/html");
}
return contentTypeModeMap.get("text/plain");
}
// // @flow or /* @flow */
if (text.match(/^\s*(\/\/ @flow|\/\* @flow \*\/)/)) {
return contentTypeModeMap.get("text/typescript");
}
if (contentTypeModeMap.has(contentType)) {
return contentTypeModeMap.get(contentType);
}
if (isHTMLLike()) {
return contentTypeModeMap.get("text/html");
}
return contentTypeModeMap.get("text/plain");
}
function setMode(editor, source, sourceTextContent, symbols) {
const mode = getMode(source, sourceTextContent, symbols);
const currentMode = editor.codeMirror.getOption("mode");
if (!currentMode || currentMode.name != mode.name) {
editor.setMode(mode);
}
}
/**
* Handle getting the source document or creating a new
* document with the correct mode and text.
*/
export function showSourceText(editor, source, sourceTextContent, symbols) {
if (hasDocument(source.id)) {
const doc = getDocument(source.id);
if (editor.codeMirror.doc === doc) {
setMode(editor, source, sourceTextContent, symbols);
return;
}
editor.replaceDocument(doc);
updateLineNumberFormat(editor, source.id);
setMode(editor, source, sourceTextContent, symbols);
return;
}
const content = sourceTextContent.value;
const doc = editor.createDocument(
// We can set wasm text content directly from the constructor, so we pass an empty string
// here, and set the text after replacing the document.
content.type !== "wasm" ? content.value : "",
getMode(source, sourceTextContent, symbols)
);
setDocument(source.id, doc);
editor.replaceDocument(doc);
if (content.type === "wasm") {
const wasmLines = renderWasmText(source.id, content);
// cm will try to split into lines anyway, saving memory
editor.setText({ split: () => wasmLines, match: () => false });
}
updateLineNumberFormat(editor, source.id);
}
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