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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /mobile/android/chrome/content/Linkify.js
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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-rw-r--r--mobile/android/chrome/content/Linkify.js108
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diff --git a/mobile/android/chrome/content/Linkify.js b/mobile/android/chrome/content/Linkify.js
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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/. */
+
+const LINKIFY_TIMEOUT = 0;
+
+function Linkifier() {
+ this._linkifyTimer = null;
+ this._phoneRegex = /(?:\s|^)[\+]?(\(?\d{1,8}\)?)?([- ]+\(?\d{1,8}\)?)+( ?(x|ext) ?\d{1,3})?(?:\s|$)/g;
+}
+
+Linkifier.prototype = {
+ _buildAnchor : function(aDoc, aNumberText) {
+ let anchorNode = aDoc.createElement("a");
+ let cleanedText = "";
+ for (let i = 0; i < aNumberText.length; i++) {
+ let c = aNumberText.charAt(i);
+ if ((c >= '0' && c <= '9') || c == '+') //assuming there is only the leading '+'.
+ cleanedText += c;
+ }
+ anchorNode.setAttribute("href", "tel:" + cleanedText);
+ let nodeText = aDoc.createTextNode(aNumberText);
+ anchorNode.appendChild(nodeText);
+ return anchorNode;
+ },
+
+ _linkifyNodeNumbers : function(aNodeToProcess, aDoc) {
+ let parent = aNodeToProcess.parentNode;
+ let nodeText = aNodeToProcess.nodeValue;
+
+ // Replacing the original text node with a sequence of
+ // |text before number|anchor with number|text after number nodes.
+ // Each step a couple of (optional) text node and anchor node are appended.
+ let anchorNode = null;
+ let m = null;
+ let startIndex = 0;
+ let prevNode = null;
+ while (m = this._phoneRegex.exec(nodeText)) {
+ anchorNode = this._buildAnchor(aDoc, nodeText.substr(m.index, m[0].length));
+
+ let textExistsBeforeNumber = (m.index > startIndex);
+ let nodeToAdd = null;
+ if (textExistsBeforeNumber)
+ nodeToAdd = aDoc.createTextNode(nodeText.substr(startIndex, m.index - startIndex));
+ else
+ nodeToAdd = anchorNode;
+
+ if (!prevNode) // first time, need to replace the whole node with the first new one.
+ parent.replaceChild(nodeToAdd, aNodeToProcess);
+ else
+ parent.insertBefore(nodeToAdd, prevNode.nextSibling); //inserts after.
+
+ if (textExistsBeforeNumber) // if we added the text node before the anchor, we still need to add the anchor node.
+ parent.insertBefore(anchorNode, nodeToAdd.nextSibling);
+
+ // next nodes need to be appended to this node.
+ prevNode = anchorNode;
+ startIndex = m.index + m[0].length;
+ }
+
+ // if some text is remaining after the last anchor.
+ if (startIndex > 0 && startIndex < nodeText.length) {
+ let lastNode = aDoc.createTextNode(nodeText.substr(startIndex));
+ parent.insertBefore(lastNode, prevNode.nextSibling);
+ return lastNode;
+ }
+ return anchorNode;
+ },
+
+ linkifyNumbers: function(aDoc) {
+ // Removing any installed timer in case the page has changed and a previous timer is still running.
+ if (this._linkifyTimer) {
+ clearTimeout(this._linkifyTimer);
+ this._linkifyTimer = null;
+ }
+
+ let filterNode = function (node) {
+ if (node.parentNode.tagName != 'A' &&
+ node.parentNode.tagName != 'SCRIPT' &&
+ node.parentNode.tagName != 'NOSCRIPT' &&
+ node.parentNode.tagName != 'STYLE' &&
+ node.parentNode.tagName != 'APPLET' &&
+ node.parentNode.tagName != 'TEXTAREA')
+ return NodeFilter.FILTER_ACCEPT;
+ else
+ return NodeFilter.FILTER_REJECT;
+ }
+
+ let nodeWalker = aDoc.createTreeWalker(aDoc.body, NodeFilter.SHOW_TEXT, filterNode, false);
+ let parseNode = function() {
+ let node = nodeWalker.nextNode();
+ if (!node) {
+ this._linkifyTimer = null;
+ return;
+ }
+ let lastAddedNode = this._linkifyNodeNumbers(node, aDoc);
+ // we assign a different timeout whether the node was processed or not.
+ if (lastAddedNode) {
+ nodeWalker.currentNode = lastAddedNode;
+ this._linkifyTimer = setTimeout(parseNode, LINKIFY_TIMEOUT);
+ } else {
+ this._linkifyTimer = setTimeout(parseNode, LINKIFY_TIMEOUT);
+ }
+ }.bind(this);
+
+ this._linkifyTimer = setTimeout(parseNode, LINKIFY_TIMEOUT);
+ }
+};