The Tor Browser / file revision

 # -*- Mode: Java; tab-width: 2; 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/.

 var SidebarUtils = {

   handleTreeClick: function SU_handleTreeClick(aTree, aEvent, aGutterSelect) {

     // right-clicks are not handled here

     if (aEvent.button == 2)

       return;

     var tbo = aTree.treeBoxObject;

     var row = { }, col = { }, obj = { };

     tbo.getCellAt(aEvent.clientX, aEvent.clientY, row, col, obj);

     if (row.value == -1 || obj.value == "twisty")

       return;

     var mouseInGutter = false;

     if (aGutterSelect) {

       var x = { }, y = { }, w = { }, h = { };

       tbo.getCoordsForCellItem(row.value, col.value, "image",

                                x, y, w, h);

       // getCoordsForCellItem returns the x coordinate in logical coordinates

       // (i.e., starting from the left and right sides in LTR and RTL modes,

       // respectively.)  Therefore, we make sure to exclude the blank area

       // before the tree item icon (that is, to the left or right of it in

       // LTR and RTL modes, respectively) from the click target area.

       var isRTL = window.getComputedStyle(aTree, null).direction == "rtl";

       if (isRTL)

         mouseInGutter = aEvent.clientX > x.value;

       else

         mouseInGutter = aEvent.clientX < x.value;

     }

 #ifdef XP_MACOSX

     var modifKey = aEvent.metaKey || aEvent.shiftKey;

 #else

     var modifKey = aEvent.ctrlKey || aEvent.shiftKey;

 #endif

     var isContainer = tbo.view.isContainer(row.value);

     var openInTabs = isContainer &&

                      (aEvent.button == 1 ||

                       (aEvent.button == 0 && modifKey)) &&

                      PlacesUtils.hasChildURIs(tbo.view.nodeForTreeIndex(row.value));

     if (aEvent.button == 0 && isContainer && !openInTabs) {

       tbo.view.toggleOpenState(row.value);

       return;

     }

     else if (!mouseInGutter && openInTabs &&

             aEvent.originalTarget.localName == "treechildren") {

       tbo.view.selection.select(row.value);

       PlacesUIUtils.openContainerNodeInTabs(aTree.selectedNode, aEvent, aTree);

     }

     else if (!mouseInGutter && !isContainer &&

              aEvent.originalTarget.localName == "treechildren") {

       // Clear all other selection since we're loading a link now. We must

       // do this *before* attempting to load the link since openURL uses

       // selection as an indication of which link to load.

       tbo.view.selection.select(row.value);

       PlacesUIUtils.openNodeWithEvent(aTree.selectedNode, aEvent, aTree);

     }

   },

   handleTreeKeyPress: function SU_handleTreeKeyPress(aEvent) {

     // XXX Bug 627901: Post Fx4, this method should take a tree parameter.

     let tree = aEvent.target;

     let node = tree.selectedNode;

     if (node) {

       if (aEvent.keyCode == KeyEvent.DOM_VK_RETURN)

         PlacesUIUtils.openNodeWithEvent(node, aEvent, tree);

     }

   },

   /**

    * The following function displays the URL of a node that is being

    * hovered over.

    */

   handleTreeMouseMove: function SU_handleTreeMouseMove(aEvent) {

     if (aEvent.target.localName != "treechildren")

       return;

     var tree = aEvent.target.parentNode;

     var tbo = tree.treeBoxObject;

     var row = { }, col = { }, obj = { };

     tbo.getCellAt(aEvent.clientX, aEvent.clientY, row, col, obj);

     // row.value is -1 when the mouse is hovering an empty area within the tree.

     // To avoid showing a URL from a previously hovered node for a currently

     // hovered non-url node, we must clear the moused-over URL in these cases.

     if (row.value != -1) {

       var node = tree.view.nodeForTreeIndex(row.value);

       if (PlacesUtils.nodeIsURI(node))

         this.setMouseoverURL(node.uri);

       else

         this.setMouseoverURL("");

     }

     else

       this.setMouseoverURL("");

   },

   setMouseoverURL: function SU_setMouseoverURL(aURL) {

     // When the browser window is closed with an open sidebar, the sidebar

     // unload event happens after the browser's one.  In this case

     // top.XULBrowserWindow has been nullified already.

     if (top.XULBrowserWindow) {

       top.XULBrowserWindow.setOverLink(aURL, null);

     }

   }

 };