michael@0: # -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0: # This Source Code Form is subject to the terms of the Mozilla Public
michael@0: # License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0: # file, You can obtain one at http://mozilla.org/MPL/2.0/.
michael@0: 
michael@0: var SidebarUtils = {
michael@0:   handleTreeClick: function SU_handleTreeClick(aTree, aEvent, aGutterSelect) {
michael@0:     // right-clicks are not handled here
michael@0:     if (aEvent.button == 2)
michael@0:       return;
michael@0: 
michael@0:     var tbo = aTree.treeBoxObject;
michael@0:     var row = { }, col = { }, obj = { };
michael@0:     tbo.getCellAt(aEvent.clientX, aEvent.clientY, row, col, obj);
michael@0: 
michael@0:     if (row.value == -1 || obj.value == "twisty")
michael@0:       return;
michael@0: 
michael@0:     var mouseInGutter = false;
michael@0:     if (aGutterSelect) {
michael@0:       var x = { }, y = { }, w = { }, h = { };
michael@0:       tbo.getCoordsForCellItem(row.value, col.value, "image",
michael@0:                                x, y, w, h);
michael@0:       // getCoordsForCellItem returns the x coordinate in logical coordinates
michael@0:       // (i.e., starting from the left and right sides in LTR and RTL modes,
michael@0:       // respectively.)  Therefore, we make sure to exclude the blank area
michael@0:       // before the tree item icon (that is, to the left or right of it in
michael@0:       // LTR and RTL modes, respectively) from the click target area.
michael@0:       var isRTL = window.getComputedStyle(aTree, null).direction == "rtl";
michael@0:       if (isRTL)
michael@0:         mouseInGutter = aEvent.clientX > x.value;
michael@0:       else
michael@0:         mouseInGutter = aEvent.clientX < x.value;
michael@0:     }
michael@0: 
michael@0: #ifdef XP_MACOSX
michael@0:     var modifKey = aEvent.metaKey || aEvent.shiftKey;
michael@0: #else
michael@0:     var modifKey = aEvent.ctrlKey || aEvent.shiftKey;
michael@0: #endif
michael@0: 
michael@0:     var isContainer = tbo.view.isContainer(row.value);
michael@0:     var openInTabs = isContainer &&
michael@0:                      (aEvent.button == 1 ||
michael@0:                       (aEvent.button == 0 && modifKey)) &&
michael@0:                      PlacesUtils.hasChildURIs(tbo.view.nodeForTreeIndex(row.value));
michael@0: 
michael@0:     if (aEvent.button == 0 && isContainer && !openInTabs) {
michael@0:       tbo.view.toggleOpenState(row.value);
michael@0:       return;
michael@0:     }
michael@0:     else if (!mouseInGutter && openInTabs &&
michael@0:             aEvent.originalTarget.localName == "treechildren") {
michael@0:       tbo.view.selection.select(row.value);
michael@0:       PlacesUIUtils.openContainerNodeInTabs(aTree.selectedNode, aEvent, aTree);
michael@0:     }
michael@0:     else if (!mouseInGutter && !isContainer &&
michael@0:              aEvent.originalTarget.localName == "treechildren") {
michael@0:       // Clear all other selection since we're loading a link now. We must
michael@0:       // do this *before* attempting to load the link since openURL uses
michael@0:       // selection as an indication of which link to load.
michael@0:       tbo.view.selection.select(row.value);
michael@0:       PlacesUIUtils.openNodeWithEvent(aTree.selectedNode, aEvent, aTree);
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   handleTreeKeyPress: function SU_handleTreeKeyPress(aEvent) {
michael@0:     // XXX Bug 627901: Post Fx4, this method should take a tree parameter.
michael@0:     let tree = aEvent.target;
michael@0:     let node = tree.selectedNode;
michael@0:     if (node) {
michael@0:       if (aEvent.keyCode == KeyEvent.DOM_VK_RETURN)
michael@0:         PlacesUIUtils.openNodeWithEvent(node, aEvent, tree);
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   /**
michael@0:    * The following function displays the URL of a node that is being
michael@0:    * hovered over.
michael@0:    */
michael@0:   handleTreeMouseMove: function SU_handleTreeMouseMove(aEvent) {
michael@0:     if (aEvent.target.localName != "treechildren")
michael@0:       return;
michael@0: 
michael@0:     var tree = aEvent.target.parentNode;
michael@0:     var tbo = tree.treeBoxObject;
michael@0:     var row = { }, col = { }, obj = { };
michael@0:     tbo.getCellAt(aEvent.clientX, aEvent.clientY, row, col, obj);
michael@0: 
michael@0:     // row.value is -1 when the mouse is hovering an empty area within the tree.
michael@0:     // To avoid showing a URL from a previously hovered node for a currently
michael@0:     // hovered non-url node, we must clear the moused-over URL in these cases.
michael@0:     if (row.value != -1) {
michael@0:       var node = tree.view.nodeForTreeIndex(row.value);
michael@0:       if (PlacesUtils.nodeIsURI(node))
michael@0:         this.setMouseoverURL(node.uri);
michael@0:       else
michael@0:         this.setMouseoverURL("");
michael@0:     }
michael@0:     else
michael@0:       this.setMouseoverURL("");
michael@0:   },
michael@0: 
michael@0:   setMouseoverURL: function SU_setMouseoverURL(aURL) {
michael@0:     // When the browser window is closed with an open sidebar, the sidebar
michael@0:     // unload event happens after the browser's one.  In this case
michael@0:     // top.XULBrowserWindow has been nullified already.
michael@0:     if (top.XULBrowserWindow) {
michael@0:       top.XULBrowserWindow.setOverLink(aURL, null);
michael@0:     }
michael@0:   }
michael@0: };