Add m-esr52 at 52.6.0

1 files changed, 267 insertions, 0 deletions

diff --git a/toolkit/modules/CharsetMenu.jsm b/toolkit/modules/CharsetMenu.jsm
new file mode 100644
index 000000000..f6479c024
--- /dev/null
+++ b/toolkit/modules/CharsetMenu.jsm
@@ -0,0 +1,267 @@
+/* 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/. */
+
+this.EXPORTED_SYMBOLS = [ "CharsetMenu" ];
+
+const { classes: Cc, interfaces: Ci, utils: Cu} = Components;
+
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+XPCOMUtils.defineLazyGetter(this, "gBundle", function() {
+  const kUrl = "chrome://global/locale/charsetMenu.properties";
+  return Services.strings.createBundle(kUrl);
+});
+
+XPCOMUtils.defineLazyModuleGetter(this, "Deprecated",
+    "resource://gre/modules/Deprecated.jsm");
+
+const kAutoDetectors = [
+  ["off", ""],
+  ["ja", "ja_parallel_state_machine"],
+  ["ru", "ruprob"],
+  ["uk", "ukprob"]
+];
+
+/**
+ * This set contains encodings that are in the Encoding Standard, except:
+ *  - XSS-dangerous encodings (except ISO-2022-JP which is assumed to be
+ *    too common not to be included).
+ *  - x-user-defined, which practically never makes sense as an end-user-chosen
+ *    override.
+ *  - Encodings that IE11 doesn't have in its correspoding menu.
+ */
+const kEncodings = new Set([
+  // Globally relevant
+  "UTF-8",
+  "windows-1252",
+  // Arabic
+  "windows-1256",
+  "ISO-8859-6",
+  // Baltic
+  "windows-1257",
+  "ISO-8859-4",
+  // "ISO-8859-13", // Hidden since not in menu in IE11
+  // Central European
+  "windows-1250",
+  "ISO-8859-2",
+  // Chinese, Simplified
+  "gbk",
+  // Chinese, Traditional
+  "Big5",
+  // Cyrillic
+  "windows-1251",
+  "ISO-8859-5",
+  "KOI8-R",
+  "KOI8-U",
+  "IBM866", // Not in menu in Chromium. Maybe drop this?
+  // "x-mac-cyrillic", // Not in menu in IE11 or Chromium.
+  // Greek
+  "windows-1253",
+  "ISO-8859-7",
+  // Hebrew
+  "windows-1255",
+  "ISO-8859-8",
+  // Japanese
+  "Shift_JIS",
+  "EUC-JP",
+  "ISO-2022-JP",
+  // Korean
+  "EUC-KR",
+  // Thai
+  "windows-874",
+  // Turkish
+  "windows-1254",
+  // Vietnamese
+  "windows-1258",
+  // Hiding rare European encodings that aren't in the menu in IE11 and would
+  // make the menu messy by sorting all over the place
+  // "ISO-8859-3",
+  // "ISO-8859-10",
+  // "ISO-8859-14",
+  // "ISO-8859-15",
+  // "ISO-8859-16",
+  // "macintosh"
+]);
+
+// Always at the start of the menu, in this order, followed by a separator.
+const kPinned = [
+  "UTF-8",
+  "windows-1252"
+];
+
+kPinned.forEach(x => kEncodings.delete(x));
+
+function CharsetComparator(a, b) {
+  // Normal sorting sorts the part in parenthesis in an order that
+  // happens to make the less frequently-used items first.
+  let titleA = a.label.replace(/\(.*/, "") + b.value;
+  let titleB = b.label.replace(/\(.*/, "") + a.value;
+  // Secondarily reverse sort by encoding name to sort "windows" or
+  // "shift_jis" first.
+  return titleA.localeCompare(titleB) || b.value.localeCompare(a.value);
+}
+
+function SetDetector(event) {
+  let str = Cc["@mozilla.org/supports-string;1"].createInstance(Ci.nsISupportsString);
+  str.data = event.target.getAttribute("detector");
+  Services.prefs.setComplexValue("intl.charset.detector", Ci.nsISupportsString, str);
+}
+
+function UpdateDetectorMenu(event) {
+  event.stopPropagation();
+  let detector = Services.prefs.getComplexValue("intl.charset.detector", Ci.nsIPrefLocalizedString);
+  let menuitem = this.getElementsByAttribute("detector", detector).item(0);
+  if (menuitem) {
+    menuitem.setAttribute("checked", "true");
+  }
+}
+
+var gDetectorInfoCache, gCharsetInfoCache, gPinnedInfoCache;
+
+var CharsetMenu = {
+  build: function(parent, deprecatedShowAccessKeys=true, showDetector=true) {
+    if (!deprecatedShowAccessKeys) {
+      Deprecated.warning("CharsetMenu no longer supports building a menu with no access keys.",
+                         "https://bugzilla.mozilla.org/show_bug.cgi?id=1088710");
+    }
+    function createDOMNode(doc, nodeInfo) {
+      let node = doc.createElement("menuitem");
+      node.setAttribute("type", "radio");
+      node.setAttribute("name", nodeInfo.name + "Group");
+      node.setAttribute(nodeInfo.name, nodeInfo.value);
+      node.setAttribute("label", nodeInfo.label);
+      if (nodeInfo.accesskey) {
+        node.setAttribute("accesskey", nodeInfo.accesskey);
+      }
+      return node;
+    }
+
+    if (parent.hasChildNodes()) {
+      // Detector menu or charset menu already built
+      return;
+    }
+    this._ensureDataReady();
+    let doc = parent.ownerDocument;
+
+    if (showDetector) {
+      let menuNode = doc.createElement("menu");
+      menuNode.setAttribute("label", gBundle.GetStringFromName("charsetMenuAutodet"));
+      menuNode.setAttribute("accesskey", gBundle.GetStringFromName("charsetMenuAutodet.key"));
+      parent.appendChild(menuNode);
+
+      let menuPopupNode = doc.createElement("menupopup");
+      menuNode.appendChild(menuPopupNode);
+      menuPopupNode.addEventListener("command", SetDetector);
+      menuPopupNode.addEventListener("popupshown", UpdateDetectorMenu);
+
+      gDetectorInfoCache.forEach(detectorInfo => menuPopupNode.appendChild(createDOMNode(doc, detectorInfo)));
+      parent.appendChild(doc.createElement("menuseparator"));
+    }
+
+    gPinnedInfoCache.forEach(charsetInfo => parent.appendChild(createDOMNode(doc, charsetInfo)));
+    parent.appendChild(doc.createElement("menuseparator"));
+    gCharsetInfoCache.forEach(charsetInfo => parent.appendChild(createDOMNode(doc, charsetInfo)));
+  },
+
+  getData: function() {
+    this._ensureDataReady();
+    return {
+      detectors: gDetectorInfoCache,
+      pinnedCharsets: gPinnedInfoCache,
+      otherCharsets: gCharsetInfoCache
+    };
+  },
+
+  _ensureDataReady: function() {
+    if (!gDetectorInfoCache) {
+      gDetectorInfoCache = this.getDetectorInfo();
+      gPinnedInfoCache = this.getCharsetInfo(kPinned, false);
+      gCharsetInfoCache = this.getCharsetInfo(kEncodings);
+    }
+  },
+
+  getDetectorInfo: function() {
+    return kAutoDetectors.map(([detectorName, nodeId]) => ({
+      label: this._getDetectorLabel(detectorName),
+      accesskey: this._getDetectorAccesskey(detectorName),
+      name: "detector",
+      value: nodeId
+    }));
+  },
+
+  getCharsetInfo: function(charsets, sort=true) {
+    let list = Array.from(charsets, charset => ({
+      label: this._getCharsetLabel(charset),
+      accesskey: this._getCharsetAccessKey(charset),
+      name: "charset",
+      value: charset
+    }));
+
+    if (sort) {
+      list.sort(CharsetComparator);
+    }
+    return list;
+  },
+
+  _getDetectorLabel: function(detector) {
+    try {
+      return gBundle.GetStringFromName("charsetMenuAutodet." + detector);
+    } catch (ex) {}
+    return detector;
+  },
+  _getDetectorAccesskey: function(detector) {
+    try {
+      return gBundle.GetStringFromName("charsetMenuAutodet." + detector + ".key");
+    } catch (ex) {}
+    return "";
+  },
+
+  _getCharsetLabel: function(charset) {
+    if (charset == "gbk") {
+      // Localization key has been revised
+      charset = "gbk.bis";
+    }
+    try {
+      return gBundle.GetStringFromName(charset);
+    } catch (ex) {}
+    return charset;
+  },
+  _getCharsetAccessKey: function(charset) {
+    if (charset == "gbk") {
+      // Localization key has been revised
+      charset = "gbk.bis";
+    }
+    try {
+      return gBundle.GetStringFromName(charset + ".key");
+    } catch (ex) {}
+    return "";
+  },
+
+  /**
+   * For substantially similar encodings, treat two encodings as the same
+   * for the purpose of the check mark.
+   */
+  foldCharset: function(charset) {
+    switch (charset) {
+      case "ISO-8859-8-I":
+        return "windows-1255";
+
+      case "gb18030":
+        return "gbk";
+
+      default:
+        return charset;
+    }
+  },
+
+  update: function(parent, charset) {
+    let menuitem = parent.getElementsByAttribute("charset", this.foldCharset(charset)).item(0);
+    if (menuitem) {
+      menuitem.setAttribute("checked", "true");
+    }
+  },
+};
+
+Object.freeze(CharsetMenu);
+