RetroZilla/browser/components/places/content/toolbar.xml

<?xml version="1.0"?>

# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
# http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
#
# The Original Code is the Places Toolbar View.
#
# The Initial Developer of the Original Code is Google Inc.
# Portions created by the Initial Developer are Copyright (C) 2005-2006
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
#   Annie Sullivan <annie.sullivan@gmail.com>
#   Ben Goodger <beng@google.com>
#   Myk Melez <myk@mozilla.org>
#
# Alternatively, the contents of this file may be used under the terms of
# either the GNU General Public License Version 2 or later (the "GPL"), or
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK ***** 


<!DOCTYPE bindings [
<!ENTITY % browserDTD SYSTEM "chrome://browser/locale/browser.dtd" >
%browserDTD;
]>

<bindings id="placesToolbarBindings"
          xmlns="http://www.mozilla.org/xbl"
          xmlns:xbl="http://www.mozilla.org/xbl"
          xmlns:html="http://www.w3.org/1999/xhtml"
          xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">

  <binding id="places-bar">
    <resources>
      <stylesheet src="chrome://browser/skin/places/places.css"/>
    </resources>
    
    <content>
      <xul:vbox>
        <xul:hbox class="toolbar-drop-indicator-bar">
          <xul:hbox class="toolbar-drop-indicator"/>
        </xul:hbox>
        <xul:hbox flex="1">
          <xul:hbox class="bookmarks-toolbar-items places-toolbar-items" flex="1">
            <children/>
          </xul:hbox>
          <xul:hbox mousethrough="always"
                    flex="1"
                    pack="end">
            <xul:toolbarbutton type="menu"
                               class="chevron"
                               mousethrough="never"
                               collapsed="true">
              <xul:menupopup type="places"
#ifndef XP_MACOSX
                             context="placesContext"
#endif
               />
            </xul:toolbarbutton>
          </xul:hbox>
          <xul:toolbarbutton class="bookmark-item bookmarks-toolbar-customize"
                             mousethrough="never"
                             label="&bookmarksToolbarItem.label;"/>
        </xul:hbox>
      </xul:vbox>
    </content>
    
    <implementation>
      <constructor><![CDATA[
        // Support an asyncinit attribute that causes the view to populate 
        // itself only after the window has been shown. This is to ensure we
        // do not regress browser window show time (Ts/Txul)
        if (this.hasAttribute("asyncinit")) {
          var self = this;
          //setTimeout(function() { self._init(); }, 0);
        }
        else
          this._init();
      ]]></constructor>
      
      <destructor><![CDATA[ 
        this._bms.removeObserver(this._observer);
        this.genericAnnoObserver.removeObserver("bookmarks/generatedTitle",
                                                this._generatedTitleAnnoObserver);
        this._anno.removeObserver(this.genericAnnoObserver);
      ]]></destructor>
      
      <method name="_init">
        <body><![CDATA[
        this._places = 
          Cc["@mozilla.org/browser/nav-history-service;1"].
          getService(Ci.nsINavHistoryService);
        this._bms = 
          Cc["@mozilla.org/browser/nav-bookmarks-service;1"].
          getService(Ci.nsINavBookmarksService);
        this._anno =
          Cc["@mozilla.org/browser/annotation-service;1"].
          getService(Ci.nsIAnnotationService);
        this._lms =
          Cc["@mozilla.org/browser/livemark-service;1"].
          getService(Ci.nsILivemarkService);
          
        this._bms.addObserver(this._observer, false);
        var t = this;
        window.addEventListener("resize",
                                function f(e) { t.updateChevron(e); },
                                false);

        this._anno.addObserver(this.genericAnnoObserver);
        this.genericAnnoObserver.addObserver("bookmarks/generatedTitle",
                                             this._generatedTitleAnnoObserver);

        if (this.hasAttribute("place")) {
          // Do the initial build. 
          this.place = this.place;
        }
        ]]></body>
      </method>

      <field name="_dropIndicatorBar">document.getAnonymousElementByAttribute(this, "class", "toolbar-drop-indicator-bar")</field>
      <field name="_chevron">document.getAnonymousElementByAttribute(this, "class", "chevron")</field>
      
      <field name="_selection">null</field>
      
      <field name="_openedMenuButton">null</field>
      
      <field name="_result">null</field>

      <!-- A cache of URIs currently in this view.  The annotation observer
         - uses this to determine which annotation changes matter because they
         - are happening to URIs currently in this view.  This gets generated
         - by _rebuild().
         -->
      <field name="_currentURIs">null</field>

      <!-- A cache of titles generated by the microsummary service/extensions.
         - Generated titles override page/user-set titles as bookmark labels.
         - The getter builds the cache the first time it's needed; afterwards,
         - the _generatedTitleAnnoObserver maintains it by reflecting changes
         - to "bookmarks/generatedTitle" annotations into it.
         -->
      <field name="__generatedTitles">null</field>
      <property name="_generatedTitles">
        <getter><![CDATA[
          if (!this.__generatedTitles) {
            this.__generatedTitles = {};

            // This try/catch block is a temporary workaround for bug 336194.
            var pages;
            try {
              pages = this._anno.getPagesWithAnnotation("bookmarks/generatedTitle", {});
            }
            catch(e) {
              pages = [];
            }

            // XXX It'd be faster to grab the annotations in a single query
            // instead of querying separately for each one, but the annotation
            // service provides no mechanism for doing so.
            for ( var i = 0; i < pages.length; i++)
              this.__generatedTitles[pages[i].spec] =
                this._anno.getAnnotationString(pages[i], "bookmarks/generatedTitle");
          }
          
          return this.__generatedTitles;
        ]]></getter>
      </property>
      
      <!-- nsIPlacesView -->
      <method name="getResult">
        <body><![CDATA[
          return this._result;
        ]]></body>
      </method>
      
      <method name="_rebuild">
        <body><![CDATA[
          // Clear out references to existing nodes, since we'll be deleting and re-adding.
          if (this._DNDObserver._overFolder.node)
            this._DNDObserver._clearOverFolder();
          this._openedMenuButton = null;
          this._currentURIs = {};
        
          while (this.hasChildNodes())
            this.removeChild(this.firstChild);
          const XULNS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
          this._result.root.containerOpen = true;
          var cc = this._result.root.childCount;
          for (var i = 0; i < cc; ++i) {
            var child = this._result.root.getChild(i);
            var title = child.title;
            var button = null;
            if (PlacesController.nodeIsURI(child)) {
              button = document.createElementNS(XULNS, "toolbarbutton");
              button.setAttribute("url", child.uri);

              // Add the URI to the list of URIs currently in the view.
              this._currentURIs[child.uri] = true;

              // If the URI has a generated title, use that instead.
              if (this._generatedTitles[child.uri])
                title = this._generatedTitles[child.uri];

            } else if (PlacesController.nodeIsSeparator(child)) {
              button = document.createElementNS(XULNS, "toolbarseparator");
            } else if (PlacesController.nodeIsContainer(child)) {
              button = document.createElementNS(XULNS, "toolbarbutton");
              button.setAttribute("type", "menu");
              button.setAttribute("container", "true");
              if (PlacesController.nodeIsLivemarkContainer(child)) {
                button.setAttribute("livemark", "true");
                var folder = asFolder(child).folderId;
                var siteURI = this._lms.getSiteURI(folder);
                if (siteURI) {            
                  button.setAttribute("siteURI", siteURI.spec);
                }
              }
              var popup = document.createElementNS(XULNS, "menupopup");
              popup.setAttribute("type", "places");
              // This is set here and not in the XBL constructor for the menu because
              // it doesn't get initialized properly in the constructor.
#ifndef XP_MACOSX
              // No context menus on menuitems on Mac
              popup.setAttribute("context", "placesContext");
#endif
              button.appendChild(popup);
              popup._result = this._result;
              popup._resultNode = child;
            }
            button.setAttribute("label", title);
            if (child.icon)
              button.setAttribute("image", child.icon.spec);
            button.className = "menuitem-iconic bookmark-item";
            button.node = child;
            this.appendChild(button);
          }
          
          var popup = this._chevron.firstChild;
          popup.setAttribute("type", "places");
          // This is set here and not in the XBL constructor for the menu because
          // it doesn't get initialized properly in the constructor.
#ifndef XP_MACOSX
          // No context menus on menuitems on Mac
          popup.setAttribute("context", "placesContext");
#endif
          popup._result = this._result;
          popup._resultNode = this._result.root;
          var t = this;
          popup.popupShowingCallback = function() {t.chevronPopupShowing();};

          this.updateChevron();
        ]]></body>
        
      </method>
      <method name="chevronPopupShowing">
        <body><![CDATA[
          var popup = this._chevron.firstChild;
          for (var i = 0; i < popup.childNodes.length; i++) {
            if (!this.childNodes[i].collapsed) {
              popup.childNodes[i].hidden = true;
            }
          }
        ]]></body>
      </method>
      
      <method name="getElementWidth">
        <parameter name="element"/>
        <body><![CDATA[
          var style = document.defaultView.getComputedStyle(element, "");
          var leftMargin = style.getPropertyValue("margin-left");
          leftMargin = leftMargin ? Math.round(parseFloat(leftMargin)) : 0;
          var rightMargin = style.getPropertyValue("margin-right");
          rightMargin = rightMargin ? Math.round(parseFloat(rightMargin)) : 0;
          return element.boxObject.width + leftMargin + rightMargin;
        ]]></body>
      </method>
      
      <method name="updateChevron">
        <parameter name="event"/>
        <body><![CDATA[
        
          // Ignore events that aren't on the document or the window
          // (html document, tooltips, etc)
          if (event && event.target != document && event.target != window)
            return;
        
          this._chevron.collapsed = false;
          var chevronWidth = this._chevron.boxObject.width;          
          var totalWidth = this.boxObject.width;
          var spaceLeft = totalWidth;
          var overflowed = false;
          for (var i = 0; i < this.childNodes.length; i++) {
            var child = this.childNodes[i];
            child.collapsed = false;
            spaceLeft -= this.getElementWidth(child);
            var spaceNeeded = (i == this.childNodes.length - 1) ? 0 : chevronWidth;
            if (spaceLeft < spaceNeeded) {
              overflowed = true;
              child.collapsed = true;
            }
          }
          this._chevron.collapsed = !overflowed;
        ]]></body>
      </method>
      
      <!-- nsIPlacesView -->
      <property name="place">
        <getter><![CDATA[
          return this.getAttribute("place");
        ]]></getter>
        <setter><![CDATA[ 
          this.setAttribute("place", val);
          
          var queries = { }, options = { };
          this._places.queryStringToQueries(val, queries, { }, options);
          if (!queries.value.length) 
            queries.value = [this._places.getNewQuery()];
          this._result = 
            this._places.executeQueries(queries.value, queries.value.length, 
                                        options.value);
          this._result.root.containerOpen = true;
          this._rebuild();
          return val;
        ]]></setter>
      </property>
      
      <!-- nsIPlacesView -->
      <property name="hasSelection">
        <getter><![CDATA[ 
          return this._selection != null;
        ]]></getter>
      </property>
      
      <!-- nsIPlacesView -->
      <property name="hasSingleSelection">
        <getter><![CDATA[ 
          return this.hasSelection;
        ]]></getter>
      </property>
      
      <!-- nsIPlacesView -->
      <method name="getSelectionNodes">
        <body><![CDATA[
          return this.hasSelection ? [this.selectedNode] : [];
        ]]></body>
      </method>
      
      <!-- nsIPlacesView -->
      <method name="getRemovableSelectionRanges">
        <body><![CDATA[ 
          return [this.getSelectionNodes()];
        ]]></body>
      </method>
      
      <!-- nsIPlacesView -->
      <method name="getCopyableSelection">
        <body><![CDATA[ 
          return this.getSelectionNodes();
        ]]></body>
      </method>
      
      <!-- nsIPlacesView -->
      <method name="getDragableSelection">
        <body><![CDATA[
          if (PlacesController.nodeIsReadOnly(this._result.root))
            return null;
          return this.getSelectionNodes();
        ]]></body>
      </method>
      
      <!-- nsIPlacesView -->
      <property name="selectedNode">
        <getter><![CDATA[ 
          return this.hasSelection ? this._selection : null;
        ]]></getter>
      </property>
      
      <!-- nsIPlacesView -->
      <property name="selectedURINode">
        <getter><![CDATA[
          var node = this.selectedNode;
          return node && PlacesController.nodeIsURI(node) ? node : null;
        ]]></getter>
      </property>
      
      <!-- nsIPlacesView -->
      <property name="insertionPoint">
        <getter><![CDATA[
          // By default, the insertion point is at the top level, at the end. 
          var index = -1;
          var folderId = this._result.root.QueryInterface(Ci.nsINavHistoryFolderResultNode).folderId;
          
          if (this.hasSelection) {
            if(PlacesController.nodeIsFolder(this.selectedNode)) {
              // If there is a folder selected, the insertion point is the
              // end of the folder.
              folderId = this.selectedNode.QueryInterface(Ci.nsINavHistoryFolderResultNode).folderId;
            } else {
              // If there is another type of node selected, the insertion point
              // is after that node.
              index = PlacesController.getIndexOfNode(this.selectedNode)
            }
          }
          return new InsertionPoint(folderId, index, 1);
        ]]></getter>
      </property>
      
      <!-- nsIPlacesView -->
      <field name="peerDropIndex">0</field>
      
      <!-- nsIPlacesView -->
      <field name="peerDropTypes">ViewConfig.GENERIC_DROP_TYPES</field>
      
      <!-- nsIPlacesView -->
      <field name="childDropTypes">ViewConfig.GENERIC_DROP_TYPES</field>
      
      <!-- nsIPlacesView -->
      <field name="excludeItems">false</field>
      
      <!-- nsIPlacesView -->
      <field name="excludeQueries">false</field>
      
      <!-- nsIPlacesView -->
      <field name="expandQueries">false</field>
     
      <!-- nsIPlacesView -->
      <method name="selectAll">
        <body><![CDATA[ 
          // Nothing
        ]]></body>
      </method>
      
      <!-- nsINavBookmarkObserver -->
      <field name="_observer"><![CDATA[({
        _numBatches: 0,
        _self: this,
        _batchedOperation: false,
        onBeginUpdateBatch: function TB_O_onBeginUpdateBatch() {
          ++this._numBatches;
        },
        onEndUpdateBatch: function TB_O_onEndUpdateBatch() {
          if (!--this._numBatches && this._batchedOperation)
            this.doRebuild();
        },
        onItemAdded: function TB_O_onItemAdded(bookmark, folder, index) {
          if (folder == this._self._bms.toolbarRoot) {
            this._self._currentURIs[bookmark.spec] = true;
            this._numBatches ? this._batchedOperation = true : this.doRebuild();
          }
        },
        onItemRemoved: function TB_O_onItemRemoved(bookmark, folder, index) {
          if (folder == this._self._bms.toolbarRoot) {
            delete this._self._currentURIs[bookmark.spec];
            this._numBatches ? this._batchedOperation = true : this.doRebuild();
          }
        },
        onItemChanged: function TB_O_onItemChanged(bookmark, property, value) {
          this._numBatches ? this._batchedOperation = true : this.doRebuild();
        },
        onItemVisited: function TB_0_onItemVisited(bookmark, visitId, time) {
          //this._self._init();
        },
        onItemReplaced: function TB_0_onItemReplaced(folder, item, newItem) {
          if (folder == this._self._bms.toolbarRoot)
            this._numBatches ? this._batchedOperation = true : this.doRebuild();
        },
        onFolderAdded: function TB_O_onFolderAdded(folder, parent, index) {
          if (parent == this._self._bms.toolbarRoot)
            this._numBatches ? this._batchedOperation = true : this.doRebuild();
        },
        onFolderRemoved: function TB_O_onFolderRemoved(folder, parent, index) {
          if (parent == this._self._bms.toolbarRoot)
            this._numBatches ? this._batchedOperation = true : this.doRebuild();
        },
        onFolderMoved: function TB_O_onFolderMoved(folder, oldParent, oldIndex, newParent, newIndex) {
          if (oldParent == this._self._bms.toolbarRoot ||
              newParent == this._self._bms.toolbarRoot)
            this._numBatches ? this._batchedOperation = true : this.doRebuild();
        },
        onFolderChanged: function TB_O_onFolderChanged(folder, property) {
          this._numBatches ? this._batchedOperation = true : this.doRebuild();
        },
        doRebuild: function TB_O_doRebuild() {
          function hitch(obj, meth) {
            return function() { meth.apply(obj, arguments); }
          }
          setTimeout(hitch(this._self, this._self._rebuild), 1);
        },
        onSeparatorAdded: function TB_O_onSeparatorAdded(parent, index) {
          if (parent == this._self._bms.toolbarRoot)
            this._numBatches ? this._batchedOperation = true : this.doRebuild();
        },
        onSeparatorRemoved: function TB_O_onSeparatorRemoved(parent, index) {
          if (parent == this._self._bms.toolbarRoot)
            this._numBatches ? this._batchedOperation = true : this.doRebuild();
        }
      })]]></field>
      <field name="_DNDObserver"><![CDATA[({
        // Inside the _DNDObserver object's functions, this points to 
        // the _DNDObserver object.  _self points to the toolbar xbl object.
        _self: this,

        // Menu buttons should be opened when the mouse drags over them, and closed
        // when the mouse drags off.  The overFolder object manages opening and closing
        // of folders when the mouse hovers.
        _overFolder: {node: null, openTimer: null, hoverTime: 350, closeTimer: null},

        // timer for turning of indicator bar, to get rid of flicker
        _ibTimer: null, 
        
        _setTimer: function TBV_DO_setTimer(time) {
          // There is a problem in Windows where timers don't fire while the
          // mouse is dragging.  QI-ing the timer to nsITimerInternal and setting
          // idle to false makes the timer fire.
          var timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
          timer.initWithCallback(this, time, timer.TYPE_ONE_SHOT);
          timer.QueryInterface(Ci.nsITimerInternal);
          timer.idle = false;
          return timer;
        },
        
        // Function to process all timer notifications.
        notify: function TBV_DO_notify(timer) {
        
          // Timer to turn off indicator bar.
          if (timer == this._ibTimer) {
            ib = this._self._dropIndicatorBar.removeAttribute('dragging');
            this._ibTimer = null;
          }
          
          // Timer to open a menubutton that's being dragged over.
          if (timer == this._overFolder.openTimer) {
            // Set the autoopen attribute on the folder's menupopup so that
            // the menu will automatically close when the mouse drags off of it.
            this._overFolder.node.lastChild.setAttribute("autoopened", "true");
            this._overFolder.node.open = true;
            this._overFolder.openTimer = null;
          }
          
          // Timer to close a menubutton that's been dragged off of.
          if (timer == this._overFolder.closeTimer) {
            // Only close the menubutton if the drag session isn't currently over
            // it or one of its children.  (The autoopened attribute will let the menu
            // know to close later if the menu is still being dragged over.)
            var currentNode = PlacesControllerDragHelper.currentDropTarget;
            var inHierarchy = false;
            while (currentNode) {
              if (currentNode == this._self) {
                inHierarchy = true;
                break;
              }
              currentNode = currentNode.parentNode;
            }
            // The _clearOverFolder() function will close the menu for _overFolder.node.
            // So null it out if we don't want to close it.
            if (inHierarchy)
              this._overFolder.node = null;
            
            // Clear out the folder and all associated timers.
            this._clearOverFolder();
          }
        },
        
        // The mouse is no longer dragging over the stored menubutton.
        // Close the menubutton, clear out drag styles, and clear all
        // timers for opening/closing it.
        _clearOverFolder: function TBV_DO_clearOverFolder() {
          if (this._overFolder.node && this._overFolder.node.lastChild) {
            if (!this._overFolder.node.lastChild.hasAttribute("dragover")) {
              this._overFolder.node.lastChild.hidePopupAndChildPopups();
            }
            this._overFolder.node.removeAttribute("dragover");
            this._overFolder.node = null;
          }
          if (this._overFolder.openTimer) {
            this._overFolder.openTimer.cancel();
            this._overFolder.openTimer = null;
          }
          if (this._overFolder.closeTimer) {
            this._overFolder.closeTimer.cancel();
            this._overFolder.closeTimer = null;
          }
        },
        
        // This function returns information about where to drop when
        // dragging over this menu--insertion point, child index to drop
        // before, and folder to drop into.
        _getDropPoint: function TBV_DO_getDropPoint(event) {
          // Can't drop if the toolbar isn't a folder.
          var result = this._self.getResult();
          if (!PlacesController.nodeIsFolder(result.root))
            return null;
          asFolder(result.root);
          
          var dropPoint = { ip: null, beforeIndex: null, folderNode: null };
          // Loop through all the nodes to see which one this should
          // get dropped in/next to
          for (var i = 0; i < this._self.childNodes.length; i++) {
            var xulNode = this._self.childNodes[i];
            if (PlacesController.nodeIsFolder(xulNode.node) &&
                !PlacesController.nodeIsReadOnly(xulNode.node)) {
              NS_ASSERT(xulNode.getAttribute("type") == "menu");
              // This is a folder. If the mouse is in the left 25% of the
              // node, drop to the left of the folder.  If it's in the middle
              // 50%, drop into the folder.  If it's past that, drop to the right.
              if (event.clientX < xulNode.boxObject.x + (xulNode.boxObject.width * 0.25)) {
                // Drop to the left of this folder.
                dropPoint.ip = new InsertionPoint(result.root.folderId, i, -1);
                dropPoint.beforeIndex = i;
                return dropPoint;
              }
              else if (event.clientX < xulNode.boxObject.x + (xulNode.boxObject.width * 0.75)) {
                // Drop inside this folder.
                dropPoint.ip = new InsertionPoint(asFolder(xulNode.node).folderId, -1, 1);
                dropPoint.beforeIndex = i;
                dropPoint.folderNode = xulNode;
                return dropPoint;
              }
            } else{
              // This is a non-folder node. If the mouse is left of the middle,
              // drop to the left of the folder.  If it's right, drop to the right.
              if (event.clientX < xulNode.boxObject.x + (xulNode.boxObject.width / 2)) {
                // Drop to the left of this bookmark.
                dropPoint.ip = new InsertionPoint(result.root.folderId, i, -1);
                dropPoint.beforeIndex = i;
                return dropPoint;
              }
            }
          }
          // Should drop to the right of the last node.
          dropPoint.ip = new InsertionPoint(result.root.folderId, -1, 1);
          dropPoint.beforeIndex = -1;
          return dropPoint;
        },
        
        onDragStart: function TBV_DO_onDragStart(event, xferData, dragAction) {
          PlacesController.activeView = this._self;
          if (event.ctrlKey) {
            dragAction.action = Ci.nsIDragService.DRAGDROP_ACTION_COPY;
          }
          xferData.data = PlacesController.getTransferData(dragAction.action);
#ifdef XP_WIN
          // Support folder dragging on the personal toolbar when the user 
          // holds the "alt" key while they drag (Ctrl+drag has another 
          // meaning - Copy). This does not appear to work at all on Linux.
          if (event.target.localName == "toolbarbutton" &&
              event.target.getAttribute("type") == "menu") {
            if (!event.shiftKey && !event.altKey && !event.ctrlKey)
              return false;
            event.target.firstChild.hidePopup();
          }
#endif
        },
        
        canDrop: function TBV_DO_canDrop(event, session) {
          return PlacesControllerDragHelper.canDrop(this._self, -1);
        },
        
        onDragOver: function TBV_DO_onDragOver(event, flavor, session) {
          PlacesControllerDragHelper.currentDropTarget = event.target;
          var dropPoint = this._getDropPoint(event);
          var ib = this._self._dropIndicatorBar;
          if (this._ibTimer) {
            this._ibTimer.cancel();
            this._ibTimer = null;
          }
          if (dropPoint.folderNode) {
            // Dropping over a menubutton, set styles and timer to open folder.
            if (this._overFolder.node != dropPoint.folderNode) {
              this._clearOverFolder();
              this._overFolder.node = dropPoint.folderNode;
              this._overFolder.openTimer = this._setTimer(this._overFolder.hoverTime);
            }
            if (!this._overFolder.node.hasAttribute("dragover"))
              this._overFolder.node.setAttribute("dragover", "true");

            ib.removeAttribute("dragging");
          }
          else {
            // Dragging over a normal toolbarbutton,
            // show indicator bar and move it to the appropriate drop point.
            if (!ib.hasAttribute("dragging"))
              ib.setAttribute("dragging", "true");
            var ind = ib.firstChild;
            var direction = document.defaultView.getComputedStyle(this._self.parentNode, "").direction;
            if (direction == "ltr") {
              if (dropPoint.beforeIndex == -1)
                ind.style.marginLeft = this._self.lastChild.boxObject.x + 
                                       this._self.lastChild.boxObject.width - this._self.boxObject.x - 7 + 'px';
              else
                ind.style.marginLeft = this._self.childNodes[dropPoint.beforeIndex].boxObject.x -
                                       this._self.boxObject.x - 7 + 'px';
            } else {
              if (dropPoint.beforeIndex == -1)
                ind.style.marginRight = '0px';
              else
                ind.style.marginRight = (this._self.childNodes[this._self.childNodes.length - 1].boxObject.x +
                                         this._self.childNodes[this._self.childNodes.length - 1].boxObject.width) -
                                        (this._self.childNodes[dropPoint.beforeIndex].boxObject.x) - 5 + 'px';
            }
            // Clear out old folder information
            this._clearOverFolder();
          }
        },
        
        onDrop: function TBV_DO_onDrop(event, dropData, session) {
          var dropPoint = this._getDropPoint(event);
          if (dropPoint == null)
            return;
          PlacesController.activeView = this._self;
          PlacesControllerDragHelper.onDrop(null, this._self, dropPoint.ip);
        },
        
        onDragExit: function TBV_DO_onDragExit(event, session) {
          // Set timer to turn off indicator bar (if we turn it off
          // here, dragenter might be called immediately after, creating
          // flicker.)
          if (this._ibTimer)
            this._ibTimer.cancel();
          this._ibTimer = this._setTimer(10);
          // Close any folder being hovered over
          if (this._overFolder.node)
            this._overFolder.closeTimer = this._setTimer(this._overFolder.hoverTime);
          PlacesControllerDragHelper.currentDropTarget = null;
        },
        
        getSupportedFlavours: function TBV_DO_getSupportedFlavours() {
          var flavorSet = new FlavourSet();
          for (var i = 0; i < this._self.peerDropTypes.length; ++i)
            flavorSet.appendFlavour(this._self.peerDropTypes[i]);
          return flavorSet;
        }
        
      })]]></field>

      <!-- nsIAnnotationObserver -->
      <field name="_generatedTitleAnnoObserver"><![CDATA[({
        // Observes changes to "bookmarks/generatedTitle" annotations,
        // which override page and user-set titles as bookmark labels.

        // The microsummary service sets this annotation for summary bookmarks,
        // and extensions might also set it.

        // Inside this observer object's functions, "this" points to this
        // observer object, while "_self" points to the toolbar XBL object.
        _self: this,

        onAnnotationSet: function TBV_GTAO_onAnnotationSet(uri, annoName) {
          NS_ASSERT(annoName == "bookmarks/generatedTitle",
                    "annotation " + annoName + ", is not 'bookmarks/generatedTitle'");
          var newTitle = this._self._anno.getAnnotationString(uri, annoName);
          this._self._generatedTitles[uri.spec] = newTitle;
          this._doRebuild();
        },

        onAnnotationRemoved: function TBV_GTAO_onAnnotationRemoved(uri, annoName) {
          NS_ASSERT(annoName == "bookmarks/generatedTitle",
                    "annotation " + annoName + ", is not 'bookmarks/generatedTitle'");
          delete this._self._generatedTitles[uri.spec];
          this._doRebuild();
        },

        _doRebuild: function TBV_GTAO_doRebuild() {
          function hitch(obj, meth) {
            return function() { meth.apply(obj, arguments); }
          }
          setTimeout(hitch(this._self, this._self._rebuild), 1);
        }

      })]]></field>

      <!-- nsIAnnotationObserver -->
      <field name="genericAnnoObserver"><![CDATA[({
        // A generic nsIAnnotationObserver that provides methods for registering
        // annotation-specific observers for this view.

        // Inside this observer object's functions, "this" points to this
        // observer object, while "_self" points to the toolbar XBL object.
        _self: this,
        
        // Observers, indexed by annotation name.
        _observers: {},
        
        addObserver: function TBV_GAO_addObserver(annoName, observer) {
          if (!this._observers[annoName])
            this._observers[annoName] = [];

          // Register the observer, but only if it isn't already registered,
          // so that we don't call the same observer twice for any given change.
          if (this._observers[annoName].indexOf(observer) == -1)
            this._observers[annoName].push(observer);
        },
        
        removeObserver: function TBV_GAO_removeObserver(annoName, observer) {
          NS_ASSERT(this._observers[annoName] &&
                    this._observers[annoName].indexOf(observer) != -1,
                    "can't remove annotation observer " + observer +
                    " for annotation " + annoName + ": not registered");

          this._observers[annoName] =
            this._observers[annoName].filter(function(i) { observer != i });
          
          if (this._observers[annoName].length == 0)
            delete this._observers[annoName];
        },

        // Determines whether or not a given annotation change applies to
        // this view.  A change applies if the annotation being changed is one
        // we're observing, and the change is happening to a URI currently
        // in this view.
        _applies: function TBV_GAO_applies(uri, annoName) {
          if (!this._observers[annoName])
            return false;

          return true;
        },

        onAnnotationSet: function TBV_GAO_onAnnotationSet(uri, annoName) {
          if (!this._applies(uri, annoName))
            return;
          
          for ( var i = 0; i < this._observers[annoName].length; i++)
            this._observers[annoName][i].onAnnotationSet(uri, annoName);
        },

        onAnnotationRemoved: function TBV_GAO_onAnnotationRemoved(uri, annoName) {
          if (!this._applies(uri, annoName))
            return;

          for ( var i = 0; i < this._observers[annoName].length; i++)
            this._observers[annoName][i].onAnnotationRemoved(uri, annoName);
        }

      })]]></field>
      
      <method name="checkForMenuEvent">
        <parameter name="event"/>
        <parameter name="action"/>
        <body><![CDATA[
          // It seems that even if the menu drag/drop event
          // handlers set their phase to capturing, toolbarbutton
          // menu events come to the toolbar first, and don't bubble.
          // So if this is a menu/menuitem, try to send the event to its
          // xbl handler.
          if (event.target.localName.indexOf("menu") == 0) {
            var parent = event.target.parentNode;
            // XULDocument has no getAttribute() function, so check for it before calling.
            while (parent && parent.getAttribute) {
              if (parent.getAttribute("type") == "places") {
                nsDragAndDrop[action](event, parent._DNDObserver);
                return true;
              }
              parent = parent.parentNode;
            }
          }
          return false;
        ]]></body>
      </method>

      <method name="saveSelection">
        <parameter name="mode"/>
        <body><![CDATA[
        ]]></body>
      </method>
      <method name="restoreSelection">
        <body><![CDATA[
        ]]></body>
      </method>

      <property name="selType" onget="return 'single';"/>
    </implementation>
    <handlers>
      <handler event="mousedown"><![CDATA[
        // When the user clicks down on a button, set it as the selection and 
        // tell the controller that we are the active view.
        if (event.target.localName == "toolbarbutton" ||
            event.target.localName == "toolbarseparator")
          this._selection = event.target.node;
        else 
          this._selection = this.getResult().root;
        PlacesController.activeView = this;
        document.commandDispatcher.updateCommands("mousedown");
      ]]></handler>
      <handler event="draggesture"><![CDATA[
        if (event.target.localName == "toolbarbutton")
          nsDragAndDrop.startDrag(event, this._DNDObserver);
      ]]></handler>
      <handler event="dragover"><![CDATA[
        if (!this.checkForMenuEvent(event, "dragOver"))
          nsDragAndDrop.dragOver(event, this._DNDObserver);
      ]]></handler>
      <handler event="dragdrop"><![CDATA[
        if (!this.checkForMenuEvent(event, "drop"))
          nsDragAndDrop.drop(event, this._DNDObserver);
      ]]></handler>
      <handler event="dragexit"><![CDATA[
        if (!this.checkForMenuEvent(event, "dragExit"))
          nsDragAndDrop.dragExit(event, this._DNDObserver);
      ]]></handler>
      <handler event="popupshowing"><![CDATA[
        if (event.target.parentNode.localName == "toolbarbutton" &&
            !PlacesControllerDragHelper.getSession())
          this._openedMenuButton = event.target.parentNode;
      ]]></handler>
      <handler event="popuphidden"><![CDATA[
        if (event.target.parentNode.localName == "toolbarbutton" &&
            !PlacesControllerDragHelper.getSession())
          this._openedMenuButton = null;
      ]]></handler>
      <handler event="mousemove"><![CDATA[
        if (this._openedMenuButton == null || PlacesControllerDragHelper.getSession())
          return;
      
        var target = event.target;
        if (this._openedMenuButton != target &&
            target.nodeName == "toolbarbutton" &&
            target.type == "menu") {
          this._openedMenuButton.open = false;
          target.open = true;
        }
      ]]></handler>
    </handlers>
  </binding>

</bindings>