The Tor Browser: browser/components/places/content/places.js@6474c204b198 (annotated)

browser/components/places/content/places.js@6474c204b198 (annotated)

browser/components/places/content/places.js

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* 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/. */
 Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "MigrationUtils",
                                   "resource:///modules/MigrationUtils.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "Task",
                                   "resource://gre/modules/Task.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "BookmarkJSONUtils",
                                   "resource://gre/modules/BookmarkJSONUtils.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "PlacesBackups",
                                   "resource://gre/modules/PlacesBackups.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "DownloadUtils",
                                   "resource://gre/modules/DownloadUtils.jsm");
 var PlacesOrganizer = {
   _places: null,
   // IDs of fields from editBookmarkOverlay that should be hidden when infoBox
   // is minimal. IDs should be kept in sync with the IDs of the elements
   // observing additionalInfoBroadcaster.
   _additionalInfoFields: [
     "editBMPanel_descriptionRow",
     "editBMPanel_loadInSidebarCheckbox",
     "editBMPanel_keywordRow",
   ],
   _initFolderTree: function() {
     var leftPaneRoot = PlacesUIUtils.leftPaneFolderId;
     this._places.place = "place:excludeItems=1&expandQueries=0&folder=" + leftPaneRoot;
   },
   selectLeftPaneQuery: function PO_selectLeftPaneQuery(aQueryName) {
     var itemId = PlacesUIUtils.leftPaneQueries[aQueryName];
     this._places.selectItems([itemId]);
     // Forcefully expand all-bookmarks
     if (aQueryName == "AllBookmarks" || aQueryName == "History")
       PlacesUtils.asContainer(this._places.selectedNode).containerOpen = true;
   },
   /**
    * Opens a given hierarchy in the left pane, stopping at the last reachable
    * container.
    *
    * @param aHierarchy A single container or an array of containers, sorted from
    *                   the outmost to the innermost in the hierarchy. Each
    *                   container may be either an item id, a Places URI string,
    *                   or a named query.
    * @see PlacesUIUtils.leftPaneQueries for supported named queries.
    */
   selectLeftPaneContainerByHierarchy:
   function PO_selectLeftPaneContainerByHierarchy(aHierarchy) {
     if (!aHierarchy)
       throw new Error("Invalid containers hierarchy");
     let hierarchy = [].concat(aHierarchy);
     let selectWasSuppressed = this._places.view.selection.selectEventsSuppressed;
     if (!selectWasSuppressed)
       this._places.view.selection.selectEventsSuppressed = true;
     try {
       for (let container of hierarchy) {
         switch (typeof container) {
           case "number":
             this._places.selectItems([container], false);
             break;
           case "string":
             if (container.substr(0, 6) == "place:")
               this._places.selectPlaceURI(container);
             else if (container in PlacesUIUtils.leftPaneQueries)
               this.selectLeftPaneQuery(container);
             else
               throw new Error("Invalid container found: " + container);
             break;
           default:
             throw new Error("Invalid container type found: " + container);
             break;
         }
         PlacesUtils.asContainer(this._places.selectedNode).containerOpen = true;
       }
     } finally {
       if (!selectWasSuppressed)
         this._places.view.selection.selectEventsSuppressed = false;
     }
   },
   init: function PO_init() {
     ContentArea.init();
     this._places = document.getElementById("placesList");
     this._initFolderTree();
     var leftPaneSelection = "AllBookmarks"; // default to all-bookmarks
     if (window.arguments && window.arguments[0])
       leftPaneSelection = window.arguments[0];
     this.selectLeftPaneContainerByHierarchy(leftPaneSelection);
     if (leftPaneSelection === "History") {
       let historyNode = this._places.selectedNode;
       if (historyNode.childCount > 0)
         this._places.selectNode(historyNode.getChild(0));
     }
     // clear the back-stack
     this._backHistory.splice(0, this._backHistory.length);
     document.getElementById("OrganizerCommand:Back").setAttribute("disabled", true);
     // Set up the search UI.
     PlacesSearchBox.init();
     window.addEventListener("AppCommand", this, true);
 #ifdef XP_MACOSX
     // 1. Map Edit->Find command to OrganizerCommand_find:all.  Need to map
     // both the menuitem and the Find key.
     var findMenuItem = document.getElementById("menu_find");
     findMenuItem.setAttribute("command", "OrganizerCommand_find:all");
     var findKey = document.getElementById("key_find");
     findKey.setAttribute("command", "OrganizerCommand_find:all");
     // 2. Disable some keybindings from browser.xul
     var elements = ["cmd_handleBackspace", "cmd_handleShiftBackspace"];
     for (var i=0; i < elements.length; i++) {
       document.getElementById(elements[i]).setAttribute("disabled", "true");
     }
 #endif
     // remove the "Properties" context-menu item, we've our own details pane
     document.getElementById("placesContext")
             .removeChild(document.getElementById("placesContext_show:info"));
     ContentArea.focus();
   },
   QueryInterface: function PO_QueryInterface(aIID) {
     if (aIID.equals(Components.interfaces.nsIDOMEventListener) ||
         aIID.equals(Components.interfaces.nsISupports))
       return this;
     throw Components.results.NS_NOINTERFACE;
   },
   handleEvent: function PO_handleEvent(aEvent) {
     if (aEvent.type != "AppCommand")
       return;
     aEvent.stopPropagation();
     switch (aEvent.command) {
       case "Back":
         if (this._backHistory.length > 0)
           this.back();
         break;
       case "Forward":
         if (this._forwardHistory.length > 0)
           this.forward();
         break;
       case "Search":
         PlacesSearchBox.findAll();
         break;
     }
   },
   destroy: function PO_destroy() {
   },
   _location: null,
   get location() {
     return this._location;
   },
   set location(aLocation) {
     if (!aLocation || this._location == aLocation)
       return aLocation;
     if (this.location) {
       this._backHistory.unshift(this.location);
       this._forwardHistory.splice(0, this._forwardHistory.length);
     }
     this._location = aLocation;
     this._places.selectPlaceURI(aLocation);
     if (!this._places.hasSelection) {
       // If no node was found for the given place: uri, just load it directly
       ContentArea.currentPlace = aLocation;
     }
     this.updateDetailsPane();
     // update navigation commands
     if (this._backHistory.length == 0)
       document.getElementById("OrganizerCommand:Back").setAttribute("disabled", true);
     else
       document.getElementById("OrganizerCommand:Back").removeAttribute("disabled");
     if (this._forwardHistory.length == 0)
       document.getElementById("OrganizerCommand:Forward").setAttribute("disabled", true);
     else
       document.getElementById("OrganizerCommand:Forward").removeAttribute("disabled");
     return aLocation;
   },
   _backHistory: [],
   _forwardHistory: [],
   back: function PO_back() {
     this._forwardHistory.unshift(this.location);
     var historyEntry = this._backHistory.shift();
     this._location = null;
     this.location = historyEntry;
   },
   forward: function PO_forward() {
     this._backHistory.unshift(this.location);
     var historyEntry = this._forwardHistory.shift();
     this._location = null;
     this.location = historyEntry;
   },
   /**
    * Called when a place folder is selected in the left pane.
    * @param   resetSearchBox
    *          true if the search box should also be reset, false otherwise.
    *          The search box should be reset when a new folder in the left
    *          pane is selected; the search scope and text need to be cleared in
    *          preparation for the new folder.  Note that if the user manually
    *          resets the search box, either by clicking its reset button or by
    *          deleting its text, this will be false.
    */
   _cachedLeftPaneSelectedURI: null,
   onPlaceSelected: function PO_onPlaceSelected(resetSearchBox) {
     // Don't change the right-hand pane contents when there's no selection.
     if (!this._places.hasSelection)
       return;
     var node = this._places.selectedNode;
     var queries = PlacesUtils.asQuery(node).getQueries();
     // Items are only excluded on the left pane.
     var options = node.queryOptions.clone();
     options.excludeItems = false;
     var placeURI = PlacesUtils.history.queriesToQueryString(queries,
                                                             queries.length,
                                                             options);
     // If either the place of the content tree in the right pane has changed or
     // the user cleared the search box, update the place, hide the search UI,
     // and update the back/forward buttons by setting location.
     if (ContentArea.currentPlace != placeURI || !resetSearchBox) {
       ContentArea.currentPlace = placeURI;
       this.location = node.uri;
     }
     // When we invalidate a container we use suppressSelectionEvent, when it is
     // unset a select event is fired, in many cases the selection did not really
     // change, so we should check for it, and return early in such a case. Note
     // that we cannot return any earlier than this point, because when
     // !resetSearchBox, we need to update location and hide the UI as above,
     // even though the selection has not changed.
     if (node.uri == this._cachedLeftPaneSelectedURI)
       return;
     this._cachedLeftPaneSelectedURI = node.uri;
     // At this point, resetSearchBox is true, because the left pane selection
     // has changed; otherwise we would have returned earlier.
     PlacesSearchBox.searchFilter.reset();
     this._setSearchScopeForNode(node);
     this.updateDetailsPane();
   },
   /**
    * Sets the search scope based on aNode's properties.
    * @param   aNode
    *          the node to set up scope from
    */
   _setSearchScopeForNode: function PO__setScopeForNode(aNode) {
     let itemId = aNode.itemId;
     if (PlacesUtils.nodeIsHistoryContainer(aNode) ||
         itemId == PlacesUIUtils.leftPaneQueries["History"]) {
       PlacesQueryBuilder.setScope("history");
     }
     else if (itemId == PlacesUIUtils.leftPaneQueries["Downloads"]) {
       PlacesQueryBuilder.setScope("downloads");
     }
     else {
       // Default to All Bookmarks for all other nodes, per bug 469437.
       PlacesQueryBuilder.setScope("bookmarks");
     }
   },
   /**
    * Handle clicks on the places list.
    * Single Left click, right click or modified click do not result in any
    * special action, since they're related to selection.
    * @param   aEvent
    *          The mouse event.
    */
   onPlacesListClick: function PO_onPlacesListClick(aEvent) {
     // Only handle clicks on tree children.
     if (aEvent.target.localName != "treechildren")
       return;
     let node = this._places.selectedNode;
     if (node) {
       let middleClick = aEvent.button == 1 && aEvent.detail == 1;
       if (middleClick && PlacesUtils.nodeIsContainer(node)) {
         // The command execution function will take care of seeing if the
         // selection is a folder or a different container type, and will
         // load its contents in tabs.
         PlacesUIUtils.openContainerNodeInTabs(selectedNode, aEvent, this._places);
       }
     }
   },
   /**
    * Handle focus changes on the places list and the current content view.
    */
   updateDetailsPane: function PO_updateDetailsPane() {
     if (!ContentArea.currentViewOptions.showDetailsPane)
       return;
     let view = PlacesUIUtils.getViewForNode(document.activeElement);
     if (view) {
       let selectedNodes = view.selectedNode ?
                           [view.selectedNode] : view.selectedNodes;
       this._fillDetailsPane(selectedNodes);
     }
   },
   openFlatContainer: function PO_openFlatContainerFlatContainer(aContainer) {
     if (aContainer.itemId != -1) {
       PlacesUtils.asContainer(this._places.selectedNode).containerOpen = true;
       this._places.selectItems([aContainer.itemId], false);
     }
     else if (PlacesUtils.nodeIsQuery(aContainer)) {
       this._places.selectPlaceURI(aContainer.uri);
     }
   },
   /**
    * Returns the options associated with the query currently loaded in the
    * main places pane.
    */
   getCurrentOptions: function PO_getCurrentOptions() {
     return PlacesUtils.asQuery(ContentArea.currentView.result.root).queryOptions;
   },
   /**
    * Returns the queries associated with the query currently loaded in the
    * main places pane.
    */
   getCurrentQueries: function PO_getCurrentQueries() {
     return PlacesUtils.asQuery(ContentArea.currentView.result.root).getQueries();
   },
   /**
    * Show the migration wizard for importing passwords,
    * cookies, history, preferences, and bookmarks.
    */
   importFromBrowser: function PO_importFromBrowser() {
     MigrationUtils.showMigrationWizard(window);
   },
   /**
    * Open a file-picker and import the selected file into the bookmarks store
    */
   importFromFile: function PO_importFromFile() {
     let fp = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
     let fpCallback = function fpCallback_done(aResult) {
       if (aResult != Ci.nsIFilePicker.returnCancel && fp.fileURL) {
         Components.utils.import("resource://gre/modules/BookmarkHTMLUtils.jsm");
         BookmarkHTMLUtils.importFromURL(fp.fileURL.spec, false)
                          .then(null, Components.utils.reportError);
       }
     };
     fp.init(window, PlacesUIUtils.getString("SelectImport"),
             Ci.nsIFilePicker.modeOpen);
     fp.appendFilters(Ci.nsIFilePicker.filterHTML);
     fp.open(fpCallback);
   },
   /**
    * Allows simple exporting of bookmarks.
    */
   exportBookmarks: function PO_exportBookmarks() {
     let fp = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
     let fpCallback = function fpCallback_done(aResult) {
       if (aResult != Ci.nsIFilePicker.returnCancel) {
         Components.utils.import("resource://gre/modules/BookmarkHTMLUtils.jsm");
         BookmarkHTMLUtils.exportToFile(fp.file.path)
                          .then(null, Components.utils.reportError);
       }
     };
     fp.init(window, PlacesUIUtils.getString("EnterExport"),
             Ci.nsIFilePicker.modeSave);
     fp.appendFilters(Ci.nsIFilePicker.filterHTML);
     fp.defaultString = "bookmarks.html";
     fp.open(fpCallback);
   },
   /**
    * Populates the restore menu with the dates of the backups available.
    */
   populateRestoreMenu: function PO_populateRestoreMenu() {
     let restorePopup = document.getElementById("fileRestorePopup");
     let dateSvc = Cc["@mozilla.org/intl/scriptabledateformat;1"].
                   getService(Ci.nsIScriptableDateFormat);
     // Remove existing menu items.  Last item is the restoreFromFile item.
     while (restorePopup.childNodes.length > 1)
       restorePopup.removeChild(restorePopup.firstChild);
     Task.spawn(function() {
       let backupFiles = yield PlacesBackups.getBackupFiles();
       if (backupFiles.length == 0)
         return;
       // Populate menu with backups.
       for (let i = 0; i < backupFiles.length; i++) {
         let fileSize = (yield OS.File.stat(backupFiles[i])).size;
         let [size, unit] = DownloadUtils.convertByteUnits(fileSize);
         let sizeString = PlacesUtils.getFormattedString("backupFileSizeText",
                                                         [size, unit]);
         let sizeInfo;
         let bookmarkCount = PlacesBackups.getBookmarkCountForFile(backupFiles[i]);
         if (bookmarkCount != null) {
           sizeInfo = " (" + sizeString + " - " +
                      PlacesUIUtils.getPluralString("detailsPane.itemsCountLabel",
                                                    bookmarkCount,
                                                    [bookmarkCount]) +
                      ")";
         } else {
           sizeInfo = " (" + sizeString + ")";
         }
         let backupDate = PlacesBackups.getDateForFile(backupFiles[i]);
         let m = restorePopup.insertBefore(document.createElement("menuitem"),
                                           document.getElementById("restoreFromFile"));
         m.setAttribute("label",
                        dateSvc.FormatDate("",
                                           Ci.nsIScriptableDateFormat.dateFormatLong,
                                           backupDate.getFullYear(),
                                           backupDate.getMonth() + 1,
                                           backupDate.getDate()) +
                                           sizeInfo);
         m.setAttribute("value", OS.Path.basename(backupFiles[i]));
         m.setAttribute("oncommand",
                        "PlacesOrganizer.onRestoreMenuItemClick(this);");
       }
       // Add the restoreFromFile item.
       restorePopup.insertBefore(document.createElement("menuseparator"),
                                 document.getElementById("restoreFromFile"));
     });
   },
   /**
    * Called when a menuitem is selected from the restore menu.
    */
   onRestoreMenuItemClick: function PO_onRestoreMenuItemClick(aMenuItem) {
     Task.spawn(function() {
       let backupName = aMenuItem.getAttribute("value");
       let backupFilePaths = yield PlacesBackups.getBackupFiles();
       for (let backupFilePath of backupFilePaths) {
         if (OS.Path.basename(backupFilePath) == backupName) {
           PlacesOrganizer.restoreBookmarksFromFile(backupFilePath);
           break;
         }
       }
     });
   },
   /**
    * Called when 'Choose File...' is selected from the restore menu.
    * Prompts for a file and restores bookmarks to those in the file.
    */
   onRestoreBookmarksFromFile: function PO_onRestoreBookmarksFromFile() {
     let dirSvc = Cc["@mozilla.org/file/directory_service;1"].
                  getService(Ci.nsIProperties);
     let backupsDir = dirSvc.get("Desk", Ci.nsILocalFile);
     let fp = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
     let fpCallback = function fpCallback_done(aResult) {
       if (aResult != Ci.nsIFilePicker.returnCancel) {
         this.restoreBookmarksFromFile(fp.file.path);
       }
     }.bind(this);
     fp.init(window, PlacesUIUtils.getString("bookmarksRestoreTitle"),
             Ci.nsIFilePicker.modeOpen);
     fp.appendFilter(PlacesUIUtils.getString("bookmarksRestoreFilterName"),
                     PlacesUIUtils.getString("bookmarksRestoreFilterExtension"));
     fp.appendFilters(Ci.nsIFilePicker.filterAll);
     fp.displayDirectory = backupsDir;
     fp.open(fpCallback);
   },
   /**
    * Restores bookmarks from a JSON file.
    */
   restoreBookmarksFromFile: function PO_restoreBookmarksFromFile(aFilePath) {
     // check file extension
     if (!aFilePath.endsWith("json")) {
       this._showErrorAlert(PlacesUIUtils.getString("bookmarksRestoreFormatError"));
       return;
     }
     // confirm ok to delete existing bookmarks
     var prompts = Cc["@mozilla.org/embedcomp/prompt-service;1"].
                   getService(Ci.nsIPromptService);
     if (!prompts.confirm(null,
                          PlacesUIUtils.getString("bookmarksRestoreAlertTitle"),
                          PlacesUIUtils.getString("bookmarksRestoreAlert")))
       return;
     Task.spawn(function() {
       try {
         yield BookmarkJSONUtils.importFromFile(aFilePath, true);
       } catch(ex) {
         PlacesOrganizer._showErrorAlert(PlacesUIUtils.getString("bookmarksRestoreParseError"));
       }
     });
   },
   _showErrorAlert: function PO__showErrorAlert(aMsg) {
     var brandShortName = document.getElementById("brandStrings").
                                   getString("brandShortName");
     Cc["@mozilla.org/embedcomp/prompt-service;1"].
       getService(Ci.nsIPromptService).
       alert(window, brandShortName, aMsg);
   },
   /**
    * Backup bookmarks to desktop, auto-generate a filename with a date.
    * The file is a JSON serialization of bookmarks, tags and any annotations
    * of those items.
    */
   backupBookmarks: function PO_backupBookmarks() {
     let dirSvc = Cc["@mozilla.org/file/directory_service;1"].
                  getService(Ci.nsIProperties);
     let backupsDir = dirSvc.get("Desk", Ci.nsILocalFile);
     let fp = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
     let fpCallback = function fpCallback_done(aResult) {
       if (aResult != Ci.nsIFilePicker.returnCancel) {
         // There is no OS.File version of the filepicker yet (Bug 937812).
         PlacesBackups.saveBookmarksToJSONFile(fp.file.path);
       }
     };
     fp.init(window, PlacesUIUtils.getString("bookmarksBackupTitle"),
             Ci.nsIFilePicker.modeSave);
     fp.appendFilter(PlacesUIUtils.getString("bookmarksRestoreFilterName"),
                     PlacesUIUtils.getString("bookmarksRestoreFilterExtension"));
     fp.defaultString = PlacesBackups.getFilenameForDate();
     fp.displayDirectory = backupsDir;
     fp.open(fpCallback);
   },
   _paneDisabled: false,
   _setDetailsFieldsDisabledState:
   function PO__setDetailsFieldsDisabledState(aDisabled) {
     if (aDisabled) {
       document.getElementById("paneElementsBroadcaster")
               .setAttribute("disabled", "true");
     }
     else {
       document.getElementById("paneElementsBroadcaster")
               .removeAttribute("disabled");
     }
   },
   _detectAndSetDetailsPaneMinimalState:
   function PO__detectAndSetDetailsPaneMinimalState(aNode) {
     /**
      * The details of simple folder-items (as opposed to livemarks) or the
      * of livemark-children are not likely to fill the infoBox anyway,
      * thus we remove the "More/Less" button and show all details.
      *
      * the wasminimal attribute here is used to persist the "more/less"
      * state in a bookmark->folder->bookmark scenario.
      */
     var infoBox = document.getElementById("infoBox");
     var infoBoxExpander = document.getElementById("infoBoxExpander");
     var infoBoxExpanderWrapper = document.getElementById("infoBoxExpanderWrapper");
     var additionalInfoBroadcaster = document.getElementById("additionalInfoBroadcaster");
     if (!aNode) {
       infoBoxExpanderWrapper.hidden = true;
       return;
     }
     if (aNode.itemId != -1 &&
         PlacesUtils.nodeIsFolder(aNode) && !aNode._feedURI) {
       if (infoBox.getAttribute("minimal") == "true")
         infoBox.setAttribute("wasminimal", "true");
       infoBox.removeAttribute("minimal");
       infoBoxExpanderWrapper.hidden = true;
     }
     else {
       if (infoBox.getAttribute("wasminimal") == "true")
         infoBox.setAttribute("minimal", "true");
       infoBox.removeAttribute("wasminimal");
       infoBoxExpanderWrapper.hidden =
         this._additionalInfoFields.every(function (id)
           document.getElementById(id).collapsed);
     }
     additionalInfoBroadcaster.hidden = infoBox.getAttribute("minimal") == "true";
   },
   // NOT YET USED
   updateThumbnailProportions: function PO_updateThumbnailProportions() {
     var previewBox = document.getElementById("previewBox");
     var canvas = document.getElementById("itemThumbnail");
     var height = previewBox.boxObject.height;
     var width = height * (screen.width / screen.height);
     canvas.width = width;
     canvas.height = height;
   },
   _fillDetailsPane: function PO__fillDetailsPane(aNodeList) {
     var infoBox = document.getElementById("infoBox");
     var detailsDeck = document.getElementById("detailsDeck");
     // Make sure the infoBox UI is visible if we need to use it, we hide it
     // below when we don't.
     infoBox.hidden = false;
     var aSelectedNode = aNodeList.length == 1 ? aNodeList[0] : null;
     // If a textbox within a panel is focused, force-blur it so its contents
     // are saved
     if (gEditItemOverlay.itemId != -1) {
       var focusedElement = document.commandDispatcher.focusedElement;
       if ((focusedElement instanceof HTMLInputElement ||
            focusedElement instanceof HTMLTextAreaElement) &&
           /^editBMPanel.*/.test(focusedElement.parentNode.parentNode.id))
         focusedElement.blur();
       // don't update the panel if we are already editing this node unless we're
       // in multi-edit mode
       if (aSelectedNode) {
         var concreteId = PlacesUtils.getConcreteItemId(aSelectedNode);
         var nodeIsSame = gEditItemOverlay.itemId == aSelectedNode.itemId ||
                          gEditItemOverlay.itemId == concreteId ||
                          (aSelectedNode.itemId == -1 && gEditItemOverlay.uri &&
                           gEditItemOverlay.uri == aSelectedNode.uri);
         if (nodeIsSame && detailsDeck.selectedIndex == 1 &&
             !gEditItemOverlay.multiEdit)
           return;
       }
     }
     // Clean up the panel before initing it again.
     gEditItemOverlay.uninitPanel(false);
     if (aSelectedNode && !PlacesUtils.nodeIsSeparator(aSelectedNode)) {
       detailsDeck.selectedIndex = 1;
       // Using the concrete itemId is arguably wrong.  The bookmarks API
       // does allow setting properties for folder shortcuts as well, but since
       // the UI does not distinct between the couple, we better just show
       // the concrete item properties for shortcuts to root nodes.
       var concreteId = PlacesUtils.getConcreteItemId(aSelectedNode);
       var isRootItem = concreteId != -1 && PlacesUtils.isRootItem(concreteId);
       var readOnly = isRootItem ||
                      aSelectedNode.parent.itemId == PlacesUIUtils.leftPaneFolderId;
       var useConcreteId = isRootItem ||
                           PlacesUtils.nodeIsTagQuery(aSelectedNode);
       var itemId = -1;
       if (concreteId != -1 && useConcreteId)
         itemId = concreteId;
       else if (aSelectedNode.itemId != -1)
         itemId = aSelectedNode.itemId;
       else
         itemId = PlacesUtils._uri(aSelectedNode.uri);
       gEditItemOverlay.initPanel(itemId, { hiddenRows: ["folderPicker"]
                                          , forceReadOnly: readOnly
                                          , titleOverride: aSelectedNode.title
                                          });
       // Dynamically generated queries, like history date containers, have
       // itemId !=0 and do not exist in history.  For them the panel is
       // read-only, but empty, since it can't get a valid title for the object.
       // In such a case we force the title using the selectedNode one, for UI
       // polishness.
       if (aSelectedNode.itemId == -1 &&
           (PlacesUtils.nodeIsDay(aSelectedNode) ||
            PlacesUtils.nodeIsHost(aSelectedNode)))
         gEditItemOverlay._element("namePicker").value = aSelectedNode.title;
       this._detectAndSetDetailsPaneMinimalState(aSelectedNode);
     }
     else if (!aSelectedNode && aNodeList[0]) {
       var itemIds = [];
       for (var i = 0; i < aNodeList.length; i++) {
         if (!PlacesUtils.nodeIsBookmark(aNodeList[i]) &&
             !PlacesUtils.nodeIsURI(aNodeList[i])) {
           detailsDeck.selectedIndex = 0;
           var selectItemDesc = document.getElementById("selectItemDescription");
           var itemsCountLabel = document.getElementById("itemsCountText");
           selectItemDesc.hidden = false;
           itemsCountLabel.value =
             PlacesUIUtils.getPluralString("detailsPane.itemsCountLabel",
                                           aNodeList.length, [aNodeList.length]);
           infoBox.hidden = true;
           return;
         }
         itemIds[i] = aNodeList[i].itemId != -1 ? aNodeList[i].itemId :
                      PlacesUtils._uri(aNodeList[i].uri);
       }
       detailsDeck.selectedIndex = 1;
       gEditItemOverlay.initPanel(itemIds,
                                  { hiddenRows: ["folderPicker",
                                                 "loadInSidebar",
                                                 "location",
                                                 "keyword",
                                                 "description",
                                                 "name"]});
       this._detectAndSetDetailsPaneMinimalState(aSelectedNode);
     }
     else {
       detailsDeck.selectedIndex = 0;
       infoBox.hidden = true;
       let selectItemDesc = document.getElementById("selectItemDescription");
       let itemsCountLabel = document.getElementById("itemsCountText");
       let itemsCount = 0;
       if (ContentArea.currentView.result) {
         let rootNode = ContentArea.currentView.result.root;
         if (rootNode.containerOpen)
           itemsCount = rootNode.childCount;
       }
       if (itemsCount == 0) {
         selectItemDesc.hidden = true;
         itemsCountLabel.value = PlacesUIUtils.getString("detailsPane.noItems");
       }
       else {
         selectItemDesc.hidden = false;
         itemsCountLabel.value =
           PlacesUIUtils.getPluralString("detailsPane.itemsCountLabel",
                                         itemsCount, [itemsCount]);
       }
     }
   },
   // NOT YET USED
   _updateThumbnail: function PO__updateThumbnail() {
     var bo = document.getElementById("previewBox").boxObject;
     var width  = bo.width;
     var height = bo.height;
     var canvas = document.getElementById("itemThumbnail");
     var ctx = canvas.getContext('2d');
     var notAvailableText = canvas.getAttribute("notavailabletext");
     ctx.save();
     ctx.fillStyle = "-moz-Dialog";
     ctx.fillRect(0, 0, width, height);
     ctx.translate(width/2, height/2);
     ctx.fillStyle = "GrayText";
     ctx.mozTextStyle = "12pt sans serif";
     var len = ctx.mozMeasureText(notAvailableText);
     ctx.translate(-len/2,0);
     ctx.mozDrawText(notAvailableText);
     ctx.restore();
   },
   toggleAdditionalInfoFields: function PO_toggleAdditionalInfoFields() {
     var infoBox = document.getElementById("infoBox");
     var infoBoxExpander = document.getElementById("infoBoxExpander");
     var infoBoxExpanderLabel = document.getElementById("infoBoxExpanderLabel");
     var additionalInfoBroadcaster = document.getElementById("additionalInfoBroadcaster");
     if (infoBox.getAttribute("minimal") == "true") {
       infoBox.removeAttribute("minimal");
       infoBoxExpanderLabel.value = infoBoxExpanderLabel.getAttribute("lesslabel");
       infoBoxExpanderLabel.accessKey = infoBoxExpanderLabel.getAttribute("lessaccesskey");
       infoBoxExpander.className = "expander-up";
       additionalInfoBroadcaster.removeAttribute("hidden");
     }
     else {
       infoBox.setAttribute("minimal", "true");
       infoBoxExpanderLabel.value = infoBoxExpanderLabel.getAttribute("morelabel");
       infoBoxExpanderLabel.accessKey = infoBoxExpanderLabel.getAttribute("moreaccesskey");
       infoBoxExpander.className = "expander-down";
       additionalInfoBroadcaster.setAttribute("hidden", "true");
     }
   },
 };
 /**
  * A set of utilities relating to search within Bookmarks and History.
  */
 var PlacesSearchBox = {
   /**
    * The Search text field
    */
   get searchFilter() {
     return document.getElementById("searchFilter");
   },
   /**
    * Folders to include when searching.
    */
   _folders: [],
   get folders() {
     if (this._folders.length == 0) {
       this._folders.push(PlacesUtils.bookmarksMenuFolderId,
                          PlacesUtils.unfiledBookmarksFolderId,
                          PlacesUtils.toolbarFolderId);
     }
     return this._folders;
   },
   set folders(aFolders) {
     this._folders = aFolders;
     return aFolders;
   },
   /**
    * Run a search for the specified text, over the collection specified by
    * the dropdown arrow. The default is all bookmarks, but can be
    * localized to the active collection.
    * @param   filterString
    *          The text to search for.
    */
   search: function PSB_search(filterString) {
     var PO = PlacesOrganizer;
     // If the user empties the search box manually, reset it and load all
     // contents of the current scope.
     // XXX this might be to jumpy, maybe should search for "", so results
     // are ungrouped, and search box not reset
     if (filterString == "") {
       PO.onPlaceSelected(false);
       return;
     }
     let currentView = ContentArea.currentView;
     let currentOptions = PO.getCurrentOptions();
     // Search according to the current scope, which was set by
     // PQB_setScope()
     switch (PlacesSearchBox.filterCollection) {
       case "bookmarks":
         currentView.applyFilter(filterString, this.folders);
         break;
       case "history":
         if (currentOptions.queryType != Ci.nsINavHistoryQueryOptions.QUERY_TYPE_HISTORY) {
           var query = PlacesUtils.history.getNewQuery();
           query.searchTerms = filterString;
           var options = currentOptions.clone();
           // Make sure we're getting uri results.
           options.resultType = currentOptions.RESULTS_AS_URI;
           options.queryType = Ci.nsINavHistoryQueryOptions.QUERY_TYPE_HISTORY;
           options.includeHidden = true;
           currentView.load([query], options);
         }
         else {
           currentView.applyFilter(filterString, null, true);
         }
         break;
       case "downloads":
         if (currentView == ContentTree.view) {
           let query = PlacesUtils.history.getNewQuery();
           query.searchTerms = filterString;
           query.setTransitions([Ci.nsINavHistoryService.TRANSITION_DOWNLOAD], 1);
           let options = currentOptions.clone();
           // Make sure we're getting uri results.
           options.resultType = currentOptions.RESULTS_AS_URI;
           options.queryType = Ci.nsINavHistoryQueryOptions.QUERY_TYPE_HISTORY;
           options.includeHidden = true;
           currentView.load([query], options);
         }
         else {
           // The new downloads view doesn't use places for searching downloads.
           currentView.searchTerm = filterString;
         }
         break;
       default:
         throw "Invalid filterCollection on search";
     }
     // Update the details panel
     PlacesOrganizer.updateDetailsPane();
   },
   /**
    * Finds across all history, downloads or all bookmarks.
    */
   findAll: function PSB_findAll() {
     switch (this.filterCollection) {
       case "history":
         PlacesQueryBuilder.setScope("history");
         break;
       case "downloads":
         PlacesQueryBuilder.setScope("downloads");
         break;
       default:
         PlacesQueryBuilder.setScope("bookmarks");
         break;
     }
     this.focus();
   },
   /**
    * Updates the display with the title of the current collection.
    * @param   aTitle
    *          The title of the current collection.
    */
   updateCollectionTitle: function PSB_updateCollectionTitle(aTitle) {
     let title = "";
     switch (this.filterCollection) {
       case "history":
         title = PlacesUIUtils.getString("searchHistory");
         break;
       case "downloads":
         title = PlacesUIUtils.getString("searchDownloads");
         break;
       default:
         title = PlacesUIUtils.getString("searchBookmarks");
     }
     this.searchFilter.placeholder = title;
   },
   /**
    * Gets/sets the active collection from the dropdown menu.
    */
   get filterCollection() {
     return this.searchFilter.getAttribute("collection");
   },
   set filterCollection(collectionName) {
     if (collectionName == this.filterCollection)
       return collectionName;
     this.searchFilter.setAttribute("collection", collectionName);
     this.updateCollectionTitle();
     return collectionName;
   },
   /**
    * Focus the search box
    */
   focus: function PSB_focus() {
     this.searchFilter.focus();
   },
   /**
    * Set up the gray text in the search bar as the Places View loads.
    */
   init: function PSB_init() {
     this.updateCollectionTitle();
   },
   /**
    * Gets or sets the text shown in the Places Search Box
    */
   get value() {
     return this.searchFilter.value;
   },
   set value(value) {
     return this.searchFilter.value = value;
   },
 };
 /**
  * Functions and data for advanced query builder
  */
 var PlacesQueryBuilder = {
   queries: [],
   queryOptions: null,
   /**
    * Sets the search scope.  This can be called when no search is active, and
    * in that case, when the user does begin a search aScope will be used (see
    * PSB_search()).  If there is an active search, it's performed again to
    * update the content tree.
    * @param   aScope
    *          The search scope: "bookmarks", "collection", "downloads" or
    *          "history".
    */
   setScope: function PQB_setScope(aScope) {
     // Determine filterCollection, folders, and scopeButtonId based on aScope.
     var filterCollection;
     var folders = [];
     switch (aScope) {
       case "history":
         filterCollection = "history";
         break;
       case "bookmarks":
         filterCollection = "bookmarks";
         folders.push(PlacesUtils.bookmarksMenuFolderId,
                      PlacesUtils.toolbarFolderId,
                      PlacesUtils.unfiledBookmarksFolderId);
         break;
       case "downloads":
         filterCollection = "downloads";
         break;
       default:
         throw "Invalid search scope";
         break;
     }
     // Update the search box.  Re-search if there's an active search.
     PlacesSearchBox.filterCollection = filterCollection;
     PlacesSearchBox.folders = folders;
     var searchStr = PlacesSearchBox.searchFilter.value;
     if (searchStr)
       PlacesSearchBox.search(searchStr);
   }
 };
 /**
  * Population and commands for the View Menu.
  */
 var ViewMenu = {
   /**
    * Removes content generated previously from a menupopup.
    * @param   popup
    *          The popup that contains the previously generated content.
    * @param   startID
    *          The id attribute of an element that is the start of the
    *          dynamically generated region - remove elements after this
    *          item only.
    *          Must be contained by popup. Can be null (in which case the
    *          contents of popup are removed).
    * @param   endID
    *          The id attribute of an element that is the end of the
    *          dynamically generated region - remove elements up to this
    *          item only.
    *          Must be contained by popup. Can be null (in which case all
    *          items until the end of the popup will be removed). Ignored
    *          if startID is null.
    * @returns The element for the caller to insert new items before,
    *          null if the caller should just append to the popup.
    */
   _clean: function VM__clean(popup, startID, endID) {
     if (endID)
       NS_ASSERT(startID, "meaningless to have valid endID and null startID");
     if (startID) {
       var startElement = document.getElementById(startID);
       NS_ASSERT(startElement.parentNode ==
                 popup, "startElement is not in popup");
       NS_ASSERT(startElement,
                 "startID does not correspond to an existing element");
       var endElement = null;
       if (endID) {
         endElement = document.getElementById(endID);
         NS_ASSERT(endElement.parentNode == popup,
                   "endElement is not in popup");
         NS_ASSERT(endElement,
                   "endID does not correspond to an existing element");
       }
       while (startElement.nextSibling != endElement)
         popup.removeChild(startElement.nextSibling);
       return endElement;
     }
     else {
       while(popup.hasChildNodes())
         popup.removeChild(popup.firstChild);
     }
     return null;
   },
   /**
    * Fills a menupopup with a list of columns
    * @param   event
    *          The popupshowing event that invoked this function.
    * @param   startID
    *          see _clean
    * @param   endID
    *          see _clean
    * @param   type
    *          the type of the menuitem, e.g. "radio" or "checkbox".
    *          Can be null (no-type).
    *          Checkboxes are checked if the column is visible.
    * @param   propertyPrefix
    *          If propertyPrefix is non-null:
    *          propertyPrefix + column ID + ".label" will be used to get the
    *          localized label string.
    *          propertyPrefix + column ID + ".accesskey" will be used to get the
    *          localized accesskey.
    *          If propertyPrefix is null, the column label is used as label and
    *          no accesskey is assigned.
    */
   fillWithColumns: function VM_fillWithColumns(event, startID, endID, type, propertyPrefix) {
     var popup = event.target;
     var pivot = this._clean(popup, startID, endID);
     // If no column is "sort-active", the "Unsorted" item needs to be checked,
     // so track whether or not we find a column that is sort-active.
     var isSorted = false;
     var content = document.getElementById("placeContent");
     var columns = content.columns;
     for (var i = 0; i < columns.count; ++i) {
       var column = columns.getColumnAt(i).element;
       var menuitem = document.createElement("menuitem");
       menuitem.id = "menucol_" + column.id;
       menuitem.column = column;
       var label = column.getAttribute("label");
       if (propertyPrefix) {
         var menuitemPrefix = propertyPrefix;
         // for string properties, use "name" as the id, instead of "title"
         // see bug #386287 for details
         var columnId = column.getAttribute("anonid");
         menuitemPrefix += columnId == "title" ? "name" : columnId;
         label = PlacesUIUtils.getString(menuitemPrefix + ".label");
         var accesskey = PlacesUIUtils.getString(menuitemPrefix + ".accesskey");
         menuitem.setAttribute("accesskey", accesskey);
       }
       menuitem.setAttribute("label", label);
       if (type == "radio") {
         menuitem.setAttribute("type", "radio");
         menuitem.setAttribute("name", "columns");
         // This column is the sort key. Its item is checked.
         if (column.getAttribute("sortDirection") != "") {
           menuitem.setAttribute("checked", "true");
           isSorted = true;
         }
       }
       else if (type == "checkbox") {
         menuitem.setAttribute("type", "checkbox");
         // Cannot uncheck the primary column.
         if (column.getAttribute("primary") == "true")
           menuitem.setAttribute("disabled", "true");
         // Items for visible columns are checked.
         if (!column.hidden)
           menuitem.setAttribute("checked", "true");
       }
       if (pivot)
         popup.insertBefore(menuitem, pivot);
       else
         popup.appendChild(menuitem);
     }
     event.stopPropagation();
   },
   /**
    * Set up the content of the view menu.
    */
   populateSortMenu: function VM_populateSortMenu(event) {
     this.fillWithColumns(event, "viewUnsorted", "directionSeparator", "radio", "view.sortBy.1.");
     var sortColumn = this._getSortColumn();
     var viewSortAscending = document.getElementById("viewSortAscending");
     var viewSortDescending = document.getElementById("viewSortDescending");
     // We need to remove an existing checked attribute because the unsorted
     // menu item is not rebuilt every time we open the menu like the others.
     var viewUnsorted = document.getElementById("viewUnsorted");
     if (!sortColumn) {
       viewSortAscending.removeAttribute("checked");
       viewSortDescending.removeAttribute("checked");
       viewUnsorted.setAttribute("checked", "true");
     }
     else if (sortColumn.getAttribute("sortDirection") == "ascending") {
       viewSortAscending.setAttribute("checked", "true");
       viewSortDescending.removeAttribute("checked");
       viewUnsorted.removeAttribute("checked");
     }
     else if (sortColumn.getAttribute("sortDirection") == "descending") {
       viewSortDescending.setAttribute("checked", "true");
       viewSortAscending.removeAttribute("checked");
       viewUnsorted.removeAttribute("checked");
     }
   },
   /**
    * Shows/Hides a tree column.
    * @param   element
    *          The menuitem element for the column
    */
   showHideColumn: function VM_showHideColumn(element) {
     var column = element.column;
     var splitter = column.nextSibling;
     if (splitter && splitter.localName != "splitter")
       splitter = null;
     if (element.getAttribute("checked") == "true") {
       column.setAttribute("hidden", "false");
       if (splitter)
         splitter.removeAttribute("hidden");
     }
     else {
       column.setAttribute("hidden", "true");
       if (splitter)
         splitter.setAttribute("hidden", "true");
     }
   },
   /**
    * Gets the last column that was sorted.
    * @returns  the currently sorted column, null if there is no sorted column.
    */
   _getSortColumn: function VM__getSortColumn() {
     var content = document.getElementById("placeContent");
     var cols = content.columns;
     for (var i = 0; i < cols.count; ++i) {
       var column = cols.getColumnAt(i).element;
       var sortDirection = column.getAttribute("sortDirection");
       if (sortDirection == "ascending" || sortDirection == "descending")
         return column;
     }
     return null;
   },
   /**
    * Sorts the view by the specified column.
    * @param   aColumn
    *          The colum that is the sort key. Can be null - the
    *          current sort column or the title column will be used.
    * @param   aDirection
    *          The direction to sort - "ascending" or "descending".
    *          Can be null - the last direction or descending will be used.
    *
    * If both aColumnID and aDirection are null, the view will be unsorted.
    */
   setSortColumn: function VM_setSortColumn(aColumn, aDirection) {
     var result = document.getElementById("placeContent").result;
     if (!aColumn && !aDirection) {
       result.sortingMode = Ci.nsINavHistoryQueryOptions.SORT_BY_NONE;
       return;
     }
     var columnId;
     if (aColumn) {
       columnId = aColumn.getAttribute("anonid");
       if (!aDirection) {
         var sortColumn = this._getSortColumn();
         if (sortColumn)
           aDirection = sortColumn.getAttribute("sortDirection");
       }
     }
     else {
       var sortColumn = this._getSortColumn();
       columnId = sortColumn ? sortColumn.getAttribute("anonid") : "title";
     }
     // This maps the possible values of columnId (i.e., anonid's of treecols in
     // placeContent) to the default sortingMode and sortingAnnotation values for
     // each column.
     //   key:  Sort key in the name of one of the
     //         nsINavHistoryQueryOptions.SORT_BY_* constants
     //   dir:  Default sort direction to use if none has been specified
     //   anno: The annotation to sort by, if key is "ANNOTATION"
     var colLookupTable = {
       title:        { key: "TITLE",        dir: "ascending"  },
       tags:         { key: "TAGS",         dir: "ascending"  },
       url:          { key: "URI",          dir: "ascending"  },
       date:         { key: "DATE",         dir: "descending" },
       visitCount:   { key: "VISITCOUNT",   dir: "descending" },
       keyword:      { key: "KEYWORD",      dir: "ascending"  },
       dateAdded:    { key: "DATEADDED",    dir: "descending" },
       lastModified: { key: "LASTMODIFIED", dir: "descending" },
       description:  { key: "ANNOTATION",
                       dir: "ascending",
                       anno: PlacesUIUtils.DESCRIPTION_ANNO }
     };
     // Make sure we have a valid column.
     if (!colLookupTable.hasOwnProperty(columnId))
       throw("Invalid column");
     // Use a default sort direction if none has been specified.  If aDirection
     // is invalid, result.sortingMode will be undefined, which has the effect
     // of unsorting the tree.
     aDirection = (aDirection || colLookupTable[columnId].dir).toUpperCase();
     var sortConst = "SORT_BY_" + colLookupTable[columnId].key + "_" + aDirection;
     result.sortingAnnotation = colLookupTable[columnId].anno || "";
     result.sortingMode = Ci.nsINavHistoryQueryOptions[sortConst];
   }
 }
 let ContentArea = {
   _specialViews: new Map(),
   init: function CA_init() {
     this._deck = document.getElementById("placesViewsDeck");
     this._toolbar = document.getElementById("placesToolbar");
     ContentTree.init();
     this._setupView();
   },
   /**
    * Gets the content view to be used for loading the given query.
    * If a custom view was set by setContentViewForQueryString, that
    * view would be returned, else the default tree view is returned
    *
    * @param aQueryString
    *        a query string
    * @return the view to be used for loading aQueryString.
    */
   getContentViewForQueryString:
   function CA_getContentViewForQueryString(aQueryString) {
     try {
       if (this._specialViews.has(aQueryString)) {
         let { view, options } = this._specialViews.get(aQueryString);
         if (typeof view == "function") {
           view = view();
           this._specialViews.set(aQueryString, { view: view, options: options });
         }
         return view;
       }
     }
     catch(ex) {
       Components.utils.reportError(ex);
     }
     return ContentTree.view;
   },
   /**
    * Sets a custom view to be used rather than the default places tree
    * whenever the given query is selected in the left pane.
    * @param aQueryString
    *        a query string
    * @param aView
    *        Either the custom view or a function that will return the view
    *        the first (and only) time it's called.
    * @param [optional] aOptions
    *        Object defining special options for the view.
    * @see ContentTree.viewOptions for supported options and default values.
    */
   setContentViewForQueryString:
   function CA_setContentViewForQueryString(aQueryString, aView, aOptions) {
     if (!aQueryString ||
         typeof aView != "object" && typeof aView != "function")
       throw new Error("Invalid arguments");
     this._specialViews.set(aQueryString, { view: aView,
                                            options: aOptions || new Object() });
   },
   get currentView() PlacesUIUtils.getViewForNode(this._deck.selectedPanel),
   set currentView(aNewView) {
     let oldView = this.currentView;
     if (oldView != aNewView) {
       this._deck.selectedPanel = aNewView.associatedElement;
       // If the content area inactivated view was focused, move focus
       // to the new view.
       if (document.activeElement == oldView.associatedElement)
         aNewView.associatedElement.focus();
     }
     return aNewView;
   },
   get currentPlace() this.currentView.place,
   set currentPlace(aQueryString) {
     let oldView = this.currentView;
     let newView = this.getContentViewForQueryString(aQueryString);
     newView.place = aQueryString;
     if (oldView != newView) {
       oldView.active = false;
       this.currentView = newView;
       this._setupView();
       newView.active = true;
     }
     return aQueryString;
   },
   /**
    * Applies view options.
    */
   _setupView: function CA__setupView() {
     let options = this.currentViewOptions;
     // showDetailsPane.
     let detailsDeck = document.getElementById("detailsDeck");
     detailsDeck.hidden = !options.showDetailsPane;
     // toolbarSet.
     for (let elt of this._toolbar.childNodes) {
       // On Windows and Linux the menu buttons are menus wrapped in a menubar.
       if (elt.id == "placesMenu") {
         for (let menuElt of elt.childNodes) {
           menuElt.hidden = options.toolbarSet.indexOf(menuElt.id) == -1;
         }
       }
       else {
         elt.hidden = options.toolbarSet.indexOf(elt.id) == -1;
       }
     }
   },
   /**
    * Options for the current view.
    *
    * @see ContentTree.viewOptions for supported options and default values.
    */
   get currentViewOptions() {
     // Use ContentTree options as default.
     let viewOptions = ContentTree.viewOptions;
     if (this._specialViews.has(this.currentPlace)) {
       let { view, options } = this._specialViews.get(this.currentPlace);
       for (let option in options) {
         viewOptions[option] = options[option];
       }
     }
     return viewOptions;
   },
   focus: function() {
     this._deck.selectedPanel.focus();
   }
 };
 let ContentTree = {
   init: function CT_init() {
     this._view = document.getElementById("placeContent");
   },
   get view() this._view,
   get viewOptions() Object.seal({
     showDetailsPane: true,
     toolbarSet: "back-button, forward-button, organizeButton, viewMenu, maintenanceButton, libraryToolbarSpacer, searchFilter"
   }),
   openSelectedNode: function CT_openSelectedNode(aEvent) {
     let view = this.view;
     PlacesUIUtils.openNodeWithEvent(view.selectedNode, aEvent, view);
   },
   onClick: function CT_onClick(aEvent) {
     let node = this.view.selectedNode;
     if (node) {
       let doubleClick = aEvent.button == 0 && aEvent.detail == 2;
       let middleClick = aEvent.button == 1 && aEvent.detail == 1;
       if (PlacesUtils.nodeIsURI(node) && (doubleClick || middleClick)) {
         // Open associated uri in the browser.
         this.openSelectedNode(aEvent);
       }
       else if (middleClick && PlacesUtils.nodeIsContainer(node)) {
         // The command execution function will take care of seeing if the
         // selection is a folder or a different container type, and will
         // load its contents in tabs.
         PlacesUIUtils.openContainerNodeInTabs(node, aEvent, this.view);
       }
     }
   },
   onKeyPress: function CT_onKeyPress(aEvent) {
     if (aEvent.keyCode == KeyEvent.DOM_VK_RETURN)
       this.openSelectedNode(aEvent);
   }
 };