1 files changed, 255 insertions, 0 deletions
diff --git a/browser/components/preferences/translation.js b/browser/components/preferences/translation.js
new file mode 100644
index 000000000..cd570db0e
--- /dev/null
+++ b/browser/components/preferences/translation.js
@@ -0,0 +1,255 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 4 -*- */
+/* 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/. */
+
+"use strict";
+
+var {classes: Cc, interfaces: Ci, utils: Cu} = Components;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+
+XPCOMUtils.defineLazyGetter(this, "gLangBundle", () =>
+  Services.strings.createBundle("chrome://global/locale/languageNames.properties"));
+
+const kPermissionType = "translate";
+const kLanguagesPref = "browser.translation.neverForLanguages";
+
+function Tree(aId, aData)
+{
+  this._data = aData;
+  this._tree = document.getElementById(aId);
+  this._tree.view = this;
+}
+
+Tree.prototype = {
+  get boxObject() {
+    return this._tree.treeBoxObject;
+  },
+  get isEmpty() {
+    return !this._data.length;
+  },
+  get hasSelection() {
+    return this.selection.count > 0;
+  },
+  getSelectedItems: function() {
+    let result = [];
+
+    let rc = this.selection.getRangeCount();
+    for (let i = 0; i < rc; ++i) {
+      let min = {}, max = {};
+      this.selection.getRangeAt(i, min, max);
+      for (let j = min.value; j <= max.value; ++j)
+        result.push(this._data[j]);
+    }
+
+    return result;
+  },
+
+  // nsITreeView implementation
+  get rowCount() {
+    return this._data.length;
+  },
+  getCellText: function (aRow, aColumn) {
+    return this._data[aRow];
+  },
+  isSeparator: function(aIndex) {
+    return false;
+  },
+  isSorted: function() {
+    return false;
+  },
+  isContainer: function(aIndex) {
+    return false;
+  },
+  setTree: function(aTree) {},
+  getImageSrc: function(aRow, aColumn) {},
+  getProgressMode: function(aRow, aColumn) {},
+  getCellValue: function(aRow, aColumn) {},
+  cycleHeader: function(column) {},
+  getRowProperties: function(row) {
+    return "";
+  },
+  getColumnProperties: function(column) {
+    return "";
+  },
+  getCellProperties: function(row, column) {
+    return "";
+  },
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsITreeView])
+};
+
+function Lang(aCode)
+{
+  this.langCode = aCode;
+  this._label = gLangBundle.GetStringFromName(aCode);
+}
+
+Lang.prototype = {
+  toString: function() {
+    return this._label;
+  }
+}
+
+var gTranslationExceptions = {
+  onLoad: function() {
+    if (this._siteTree) {
+      // Re-using an open dialog, clear the old observers.
+      this.uninit();
+    }
+
+    // Load site permissions into an array.
+    this._sites = [];
+    let enumerator = Services.perms.enumerator;
+    while (enumerator.hasMoreElements()) {
+      let perm = enumerator.getNext().QueryInterface(Ci.nsIPermission);
+
+      if (perm.type == kPermissionType &&
+          perm.capability == Services.perms.DENY_ACTION) {
+        this._sites.push(perm.principal.origin);
+      }
+    }
+    Services.obs.addObserver(this, "perm-changed", false);
+    this._sites.sort();
+
+    this._siteTree = new Tree("sitesTree", this._sites);
+    this.onSiteSelected();
+
+    this._langs = this.getLanguageExceptions();
+    Services.prefs.addObserver(kLanguagesPref, this, false);
+    this._langTree = new Tree("languagesTree", this._langs);
+    this.onLanguageSelected();
+  },
+
+  // Get the list of languages we don't translate as an array.
+  getLanguageExceptions: function() {
+    let langs = Services.prefs.getCharPref(kLanguagesPref);
+    if (!langs)
+      return [];
+
+    let result = langs.split(",").map(code => new Lang(code));
+    result.sort();
+
+    return result;
+  },
+
+  observe: function(aSubject, aTopic, aData) {
+    if (aTopic == "perm-changed") {
+      if (aData == "cleared") {
+        if (!this._sites.length)
+          return;
+        let removed = this._sites.splice(0, this._sites.length);
+        this._siteTree.boxObject.rowCountChanged(0, - removed.length);
+      }
+      else {
+        let perm = aSubject.QueryInterface(Ci.nsIPermission);
+        if (perm.type != kPermissionType)
+          return;
+
+        if (aData == "added") {
+          if (perm.capability != Services.perms.DENY_ACTION)
+            return;
+          this._sites.push(perm.principal.origin);
+          this._sites.sort();
+          let boxObject = this._siteTree.boxObject;
+          boxObject.rowCountChanged(0, 1);
+          boxObject.invalidate();
+        }
+        else if (aData == "deleted") {
+          let index = this._sites.indexOf(perm.principal.origin);
+          if (index == -1)
+            return;
+          this._sites.splice(index, 1);
+          this._siteTree.boxObject.rowCountChanged(index, -1);
+          this.onSiteSelected();
+          return;
+        }
+      }
+      this.onSiteSelected();
+    }
+    else if (aTopic == "nsPref:changed") {
+      this._langs = this.getLanguageExceptions();
+      let change = this._langs.length - this._langTree.rowCount;
+      this._langTree._data = this._langs;
+      let boxObject = this._langTree.boxObject;
+      if (change)
+        boxObject.rowCountChanged(0, change);
+      boxObject.invalidate();
+      this.onLanguageSelected();
+    }
+  },
+
+  _handleButtonDisabling: function(aTree, aIdPart) {
+    let empty = aTree.isEmpty;
+    document.getElementById("removeAll" + aIdPart + "s").disabled = empty;
+    document.getElementById("remove" + aIdPart).disabled =
+      empty || !aTree.hasSelection;
+  },
+
+  onLanguageSelected: function() {
+    this._handleButtonDisabling(this._langTree, "Language");
+  },
+
+  onSiteSelected: function() {
+    this._handleButtonDisabling(this._siteTree, "Site");
+  },
+
+  onLanguageDeleted: function() {
+    let langs = Services.prefs.getCharPref(kLanguagesPref);
+    if (!langs)
+      return;
+
+    let removed = this._langTree.getSelectedItems().map(l => l.langCode);
+
+    langs = langs.split(",").filter(l => removed.indexOf(l) == -1);
+    Services.prefs.setCharPref(kLanguagesPref, langs.join(","));
+  },
+
+  onAllLanguagesDeleted: function() {
+    Services.prefs.setCharPref(kLanguagesPref, "");
+  },
+
+  onSiteDeleted: function() {
+    let removedSites = this._siteTree.getSelectedItems();
+    for (let origin of removedSites) {
+      let principal = Services.scriptSecurityManager.createCodebasePrincipalFromOrigin(origin);
+      Services.perms.removeFromPrincipal(principal, kPermissionType);
+    }
+  },
+
+  onAllSitesDeleted: function() {
+    if (this._siteTree.isEmpty)
+      return;
+
+    let removedSites = this._sites.splice(0, this._sites.length);
+    this._siteTree.boxObject.rowCountChanged(0, -removedSites.length);
+
+    for (let origin of removedSites) {
+      let principal = Services.scriptSecurityManager.createCodebasePrincipalFromOrigin(origin);
+      Services.perms.removeFromPrincipal(principal, kPermissionType);
+    }
+
+    this.onSiteSelected();
+  },
+
+  onSiteKeyPress: function(aEvent) {
+    if (aEvent.keyCode == KeyEvent.DOM_VK_DELETE)
+      this.onSiteDeleted();
+  },
+
+  onLanguageKeyPress: function(aEvent) {
+    if (aEvent.keyCode == KeyEvent.DOM_VK_DELETE)
+      this.onLanguageDeleted();
+  },
+
+  onWindowKeyPress: function(aEvent) {
+    if (aEvent.keyCode == KeyEvent.DOM_VK_ESCAPE)
+      window.close();
+  },
+
+  uninit: function() {
+    Services.obs.removeObserver(this, "perm-changed");
+    Services.prefs.removeObserver(kLanguagesPref, this);
+  }
+};