Adding upstream version 115.7.0esr.upstream/115.7.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 248 insertions, 0 deletions

diff --git a/toolkit/components/extensions/FindContent.sys.mjs b/toolkit/components/extensions/FindContent.sys.mjs
new file mode 100644
index 0000000000..6a2c9b78b2
--- /dev/null
+++ b/toolkit/components/extensions/FindContent.sys.mjs
@@ -0,0 +1,248 @@
+/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set sts=2 sw=2 et tw=80: */
+/* 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/. */
+
+const lazy = {};
+
+ChromeUtils.defineESModuleGetters(lazy, {
+  Finder: "resource://gre/modules/Finder.sys.mjs",
+  FinderHighlighter: "resource://gre/modules/FinderHighlighter.sys.mjs",
+  FinderIterator: "resource://gre/modules/FinderIterator.sys.mjs",
+});
+
+export class FindContent {
+  constructor(docShell) {
+    this.finder = new lazy.Finder(docShell);
+  }
+
+  get iterator() {
+    if (!this._iterator) {
+      this._iterator = new lazy.FinderIterator();
+    }
+    return this._iterator;
+  }
+
+  get highlighter() {
+    if (!this._highlighter) {
+      this._highlighter = new lazy.FinderHighlighter(this.finder, true);
+    }
+    return this._highlighter;
+  }
+
+  /**
+   * findRanges
+   *
+   * Performs a search which will cache found ranges in `iterator._previousRanges`.  Cached
+   * data can then be used by `highlightResults`, `_collectRectData` and `_serializeRangeData`.
+   *
+   * @param {object} params - the params.
+   * @param {string} params.queryphrase - the text to search for.
+   * @param {boolean} params.caseSensitive - whether to use case sensitive matches.
+   * @param {boolean} params.includeRangeData - whether to collect and return range data.
+   * @param {boolean} params.matchDiacritics - whether diacritics must match.
+   * @param {boolean} params.searchString - whether to collect and return rect data.
+   *
+   * @returns {object} that includes:
+   *   {number} count - number of results found.
+   *   {array} rangeData (if opted) - serialized representation of ranges found.
+   *   {array} rectData (if opted) - rect data of ranges found.
+   */
+  findRanges(params) {
+    return new Promise(resolve => {
+      let {
+        queryphrase,
+        caseSensitive,
+        entireWord,
+        includeRangeData,
+        includeRectData,
+        matchDiacritics,
+      } = params;
+
+      this.iterator.reset();
+
+      // Cast `caseSensitive` and `entireWord` to boolean, otherwise _iterator.start will throw.
+      let iteratorPromise = this.iterator.start({
+        word: queryphrase,
+        caseSensitive: !!caseSensitive,
+        entireWord: !!entireWord,
+        finder: this.finder,
+        listener: this.finder,
+        matchDiacritics: !!matchDiacritics,
+        useSubFrames: false,
+      });
+
+      iteratorPromise.then(() => {
+        let rangeData;
+        let rectData;
+        if (includeRangeData) {
+          rangeData = this._serializeRangeData();
+        }
+        if (includeRectData) {
+          rectData = this._collectRectData();
+        }
+
+        resolve({
+          count: this.iterator._previousRanges.length,
+          rangeData,
+          rectData,
+        });
+      });
+    });
+  }
+
+  /**
+   * _serializeRangeData
+   *
+   * Optionally returned by `findRanges`.
+   * Collects DOM data from ranges found on the most recent search made by `findRanges`
+   * and encodes it into a serializable form.  Useful to extensions for custom UI presentation
+   * of search results, eg, getting surrounding context of results.
+   *
+   * @returns {Array} - serializable range data.
+   */
+  _serializeRangeData() {
+    let ranges = this.iterator._previousRanges;
+
+    let rangeData = [];
+    let nodeCountWin = 0;
+    let lastDoc;
+    let walker;
+    let node;
+
+    for (let range of ranges) {
+      let startContainer = range.startContainer;
+      let doc = startContainer.ownerDocument;
+
+      if (lastDoc !== doc) {
+        walker = doc.createTreeWalker(
+          doc,
+          doc.defaultView.NodeFilter.SHOW_TEXT,
+          null,
+          false
+        );
+        // Get first node.
+        node = walker.nextNode();
+        // Reset node count.
+        nodeCountWin = 0;
+      }
+      lastDoc = doc;
+
+      // The framePos will be set by the parent process later.
+      let data = { framePos: 0, text: range.toString() };
+      rangeData.push(data);
+
+      if (node != range.startContainer) {
+        node = walker.nextNode();
+        while (node) {
+          nodeCountWin++;
+          if (node == range.startContainer) {
+            break;
+          }
+          node = walker.nextNode();
+        }
+      }
+      data.startTextNodePos = nodeCountWin;
+      data.startOffset = range.startOffset;
+
+      if (range.startContainer != range.endContainer) {
+        node = walker.nextNode();
+        while (node) {
+          nodeCountWin++;
+          if (node == range.endContainer) {
+            break;
+          }
+          node = walker.nextNode();
+        }
+      }
+      data.endTextNodePos = nodeCountWin;
+      data.endOffset = range.endOffset;
+    }
+
+    return rangeData;
+  }
+
+  /**
+   * _collectRectData
+   *
+   * Optionally returned by `findRanges`.
+   * Collects rect data of ranges found by most recent search made by `findRanges`.
+   * Useful to extensions for custom highlighting of search results.
+   *
+   * @returns {Array} rectData - serializable rect data.
+   */
+  _collectRectData() {
+    let rectData = [];
+
+    let ranges = this.iterator._previousRanges;
+    for (let range of ranges) {
+      let rectsAndTexts = this.highlighter._getRangeRectsAndTexts(range);
+      rectData.push({ text: range.toString(), rectsAndTexts });
+    }
+
+    return rectData;
+  }
+
+  /**
+   * highlightResults
+   *
+   * Highlights range(s) found in previous browser.find.find.
+   *
+   * @param {object} params - may contain any of the following properties:
+   *   all of which are optional:
+   *   {number} rangeIndex -
+   *            Found range to be highlighted held in API's ranges array for the tabId.
+   *            Default highlights all ranges.
+   *   {number} tabId - Tab to highlight.  Defaults to the active tab.
+   *   {boolean} noScroll - Don't scroll to highlighted item.
+   *
+   * @returns {string} - a string describing the resulting status of the highlighting,
+   *   which will be used as criteria for resolving or rejecting the promise.
+   *   This can be:
+   *   "Success" - Highlighting succeeded.
+   *   "OutOfRange" - The index supplied was out of range.
+   *   "NoResults" - There were no search results to highlight.
+   */
+  highlightResults(params) {
+    let { rangeIndex, noScroll } = params;
+
+    this.highlighter.highlight(false);
+    let ranges = this.iterator._previousRanges;
+
+    let status = "Success";
+
+    if (ranges.length) {
+      if (typeof rangeIndex == "number") {
+        if (rangeIndex < ranges.length) {
+          let foundRange = ranges[rangeIndex];
+          this.highlighter.highlightRange(foundRange);
+
+          if (!noScroll) {
+            let node = foundRange.startContainer;
+            let editableNode = this.highlighter._getEditableNode(node);
+            let controller = editableNode
+              ? editableNode.editor.selectionController
+              : this.finder._getSelectionController(node.ownerGlobal);
+
+            controller.scrollSelectionIntoView(
+              controller.SELECTION_FIND,
+              controller.SELECTION_ON,
+              controller.SCROLL_CENTER_VERTICALLY
+            );
+          }
+        } else {
+          status = "OutOfRange";
+        }
+      } else {
+        for (let range of ranges) {
+          this.highlighter.highlightRange(range);
+        }
+      }
+    } else {
+      status = "NoResults";
+    }
+
+    return status;
+  }
+}