| 1318 |
alexandre_ |
1 |
/*
|
|
|
2 |
Copyright (c) 2004-2006, The Dojo Foundation
|
|
|
3 |
All Rights Reserved.
|
|
|
4 |
|
|
|
5 |
Licensed under the Academic Free License version 2.1 or above OR the
|
|
|
6 |
modified BSD license. For more information on Dojo licensing, see:
|
|
|
7 |
|
|
|
8 |
http://dojotoolkit.org/community/licensing.shtml
|
|
|
9 |
*/
|
|
|
10 |
|
| 1422 |
alexandre_ |
11 |
|
|
|
12 |
|
| 1318 |
alexandre_ |
13 |
dojo.provide("dojo.widget.TreeDndControllerV3");
|
|
|
14 |
dojo.require("dojo.dnd.TreeDragAndDropV3");
|
|
|
15 |
dojo.require("dojo.experimental");
|
|
|
16 |
dojo.experimental("Tree drag'n'drop' has lots of problems/bugs, it requires dojo drag'n'drop overhaul to work, probably in 0.5");
|
|
|
17 |
dojo.widget.defineWidget("dojo.widget.TreeDndControllerV3", [dojo.widget.HtmlWidget, dojo.widget.TreeCommon], function () {
|
|
|
18 |
this.dragSources = {};
|
|
|
19 |
this.dropTargets = {};
|
|
|
20 |
this.listenedTrees = {};
|
|
|
21 |
}, {listenTreeEvents:["afterChangeTree", "beforeTreeDestroy", "afterAddChild"], listenNodeFilter:function (elem) {
|
|
|
22 |
return elem instanceof dojo.widget.Widget;
|
|
|
23 |
}, initialize:function (args) {
|
|
|
24 |
this.treeController = dojo.lang.isString(args.controller) ? dojo.widget.byId(args.controller) : args.controller;
|
|
|
25 |
if (!this.treeController) {
|
|
|
26 |
dojo.raise("treeController must be declared");
|
|
|
27 |
}
|
|
|
28 |
}, onBeforeTreeDestroy:function (message) {
|
|
|
29 |
this.unlistenTree(message.source);
|
|
|
30 |
}, onAfterAddChild:function (message) {
|
|
|
31 |
this.listenNode(message.child);
|
|
|
32 |
}, onAfterChangeTree:function (message) {
|
|
|
33 |
if (!message.oldTree) {
|
|
|
34 |
return;
|
|
|
35 |
}
|
|
|
36 |
if (!message.newTree || !this.listenedTrees[message.newTree.widgetId]) {
|
|
|
37 |
this.processDescendants(message.node, this.listenNodeFilter, this.unlistenNode);
|
|
|
38 |
}
|
|
|
39 |
if (!this.listenedTrees[message.oldTree.widgetId]) {
|
|
|
40 |
this.processDescendants(message.node, this.listenNodeFilter, this.listenNode);
|
|
|
41 |
}
|
|
|
42 |
}, listenNode:function (node) {
|
|
|
43 |
if (!node.tree.DndMode) {
|
|
|
44 |
return;
|
|
|
45 |
}
|
|
|
46 |
if (this.dragSources[node.widgetId] || this.dropTargets[node.widgetId]) {
|
|
|
47 |
return;
|
|
|
48 |
}
|
|
|
49 |
var source = null;
|
|
|
50 |
var target = null;
|
|
|
51 |
if (!node.actionIsDisabled(node.actions.MOVE)) {
|
|
|
52 |
var source = this.makeDragSource(node);
|
|
|
53 |
this.dragSources[node.widgetId] = source;
|
|
|
54 |
}
|
|
|
55 |
var target = this.makeDropTarget(node);
|
|
|
56 |
this.dropTargets[node.widgetId] = target;
|
|
|
57 |
}, makeDragSource:function (node) {
|
|
|
58 |
return new dojo.dnd.TreeDragSourceV3(node.contentNode, this, node.tree.widgetId, node);
|
|
|
59 |
}, makeDropTarget:function (node) {
|
|
|
60 |
return new dojo.dnd.TreeDropTargetV3(node.contentNode, this.treeController, node.tree.DndAcceptTypes, node);
|
|
|
61 |
}, unlistenNode:function (node) {
|
|
|
62 |
if (this.dragSources[node.widgetId]) {
|
|
|
63 |
dojo.dnd.dragManager.unregisterDragSource(this.dragSources[node.widgetId]);
|
|
|
64 |
delete this.dragSources[node.widgetId];
|
|
|
65 |
}
|
|
|
66 |
if (this.dropTargets[node.widgetId]) {
|
|
|
67 |
dojo.dnd.dragManager.unregisterDropTarget(this.dropTargets[node.widgetId]);
|
|
|
68 |
delete this.dropTargets[node.widgetId];
|
|
|
69 |
}
|
|
|
70 |
}});
|
|
|
71 |
|