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9 <pre class="prettyprint lang-js">/*!
10 * Ext JS Library 3.2.1
11 * Copyright(c) 2006-2010 Ext JS, Inc.
13 * http://www.extjs.com/license
15 <div id="cls-Ext.tree.TreePanel"></div>/**
16 * @class Ext.tree.TreePanel
18 * <p>The TreePanel provides tree-structured UI representation of tree-structured data.</p>
19 * <p>{@link Ext.tree.TreeNode TreeNode}s added to the TreePanel may each contain metadata
20 * used by your application in their {@link Ext.tree.TreeNode#attributes attributes} property.</p>
21 * <p><b>A TreePanel must have a {@link #root} node before it is rendered.</b> This may either be
22 * specified using the {@link #root} config option, or using the {@link #setRootNode} method.
23 * <p>An example of tree rendered to an existing div:</p><pre><code>
24 var tree = new Ext.tree.TreePanel({
30 containerScroll: true,
32 // auto create TreeLoader
33 dataUrl: 'get-nodes.php',
43 tree.getRootNode().expand();
45 * <p>The example above would work with a data packet similar to this:</p><pre><code>
48 "id": "source\/adapter",
56 "id": "source\/debug.js",
61 * <p>An example of tree within a Viewport:</p><pre><code>
72 loader: new Ext.tree.TreeLoader(),
73 root: new Ext.tree.AsyncTreeNode({
76 text: 'Menu Option 1',
79 text: 'Menu Option 2',
82 text: 'Menu Option 3',
89 Ext.Msg.alert('Navigation Tree Click', 'You clicked: "' + n.attributes.text + '"');
95 // remaining code not shown ...
100 * @cfg {Ext.tree.TreeNode} root The root node for the tree.
101 * @cfg {Boolean} rootVisible <tt>false</tt> to hide the root node (defaults to <tt>true</tt>)
102 * @cfg {Boolean} lines <tt>false</tt> to disable tree lines (defaults to <tt>true</tt>)
103 * @cfg {Boolean} enableDD <tt>true</tt> to enable drag and drop
104 * @cfg {Boolean} enableDrag <tt>true</tt> to enable just drag
105 * @cfg {Boolean} enableDrop <tt>true</tt> to enable just drop
106 * @cfg {Object} dragConfig Custom config to pass to the {@link Ext.tree.TreeDragZone} instance
107 * @cfg {Object} dropConfig Custom config to pass to the {@link Ext.tree.TreeDropZone} instance
108 * @cfg {String} ddGroup The DD group this TreePanel belongs to
109 * @cfg {Boolean} ddAppendOnly <tt>true</tt> if the tree should only allow append drops (use for trees which are sorted)
110 * @cfg {Boolean} ddScroll <tt>true</tt> to enable body scrolling
111 * @cfg {Boolean} containerScroll <tt>true</tt> to register this container with ScrollManager
112 * @cfg {Boolean} hlDrop <tt>false</tt> to disable node highlight on drop (defaults to the value of {@link Ext#enableFx})
113 * @cfg {String} hlColor The color of the node highlight (defaults to <tt>'C3DAF9'</tt>)
114 * @cfg {Boolean} animate <tt>true</tt> to enable animated expand/collapse (defaults to the value of {@link Ext#enableFx})
115 * @cfg {Boolean} singleExpand <tt>true</tt> if only 1 node per branch may be expanded
116 * @cfg {Object} selModel A tree selection model to use with this TreePanel (defaults to an {@link Ext.tree.DefaultSelectionModel})
117 * @cfg {Boolean} trackMouseOver <tt>false</tt> to disable mouse over highlighting
118 * @cfg {Ext.tree.TreeLoader} loader A {@link Ext.tree.TreeLoader} for use with this TreePanel
119 * @cfg {String} pathSeparator The token used to separate sub-paths in path strings (defaults to <tt>'/'</tt>)
120 * @cfg {Boolean} useArrows <tt>true</tt> to use Vista-style arrows in the tree (defaults to <tt>false</tt>)
121 * @cfg {String} requestMethod The HTTP request method for loading data (defaults to the value of {@link Ext.Ajax#method}).
124 * @param {Object} config
127 Ext.tree.TreePanel = Ext.extend(Ext.Panel, {
129 animate : Ext.enableFx,
132 hlDrop : Ext.enableFx,
136 * @cfg {Array} bubbleEvents
137 * <p>An array of events that, when fired, should be bubbled to any parent container.
138 * See {@link Ext.util.Observable#enableBubble}.
139 * Defaults to <tt>[]</tt>.
143 initComponent : function(){
144 Ext.tree.TreePanel.superclass.initComponent.call(this);
146 if(!this.eventModel){
147 this.eventModel = new Ext.tree.TreeEventModel(this);
150 // initialize the loader
153 l = new Ext.tree.TreeLoader({
154 dataUrl: this.dataUrl,
155 requestMethod: this.requestMethod
157 }else if(Ext.isObject(l) && !l.load){
158 l = new Ext.tree.TreeLoader(l);
165 * The root node of this tree.
166 * @type Ext.tree.TreeNode
180 * Fires when a new child node is appended to a node in this tree.
181 * @param {Tree} tree The owner tree
182 * @param {Node} parent The parent node
183 * @param {Node} node The newly appended node
184 * @param {Number} index The index of the newly appended node
189 * Fires when a child node is removed from a node in this tree.
190 * @param {Tree} tree The owner tree
191 * @param {Node} parent The parent node
192 * @param {Node} node The child node removed
197 * Fires when a node is moved to a new location in the tree
198 * @param {Tree} tree The owner tree
199 * @param {Node} node The node moved
200 * @param {Node} oldParent The old parent of this node
201 * @param {Node} newParent The new parent of this node
202 * @param {Number} index The index it was moved to
207 * Fires when a new child node is inserted in a node in this tree.
208 * @param {Tree} tree The owner tree
209 * @param {Node} parent The parent node
210 * @param {Node} node The child node inserted
211 * @param {Node} refNode The child node the node was inserted before
215 * @event beforeappend
216 * Fires before a new child is appended to a node in this tree, return false to cancel the append.
217 * @param {Tree} tree The owner tree
218 * @param {Node} parent The parent node
219 * @param {Node} node The child node to be appended
223 * @event beforeremove
224 * Fires before a child is removed from a node in this tree, return false to cancel the remove.
225 * @param {Tree} tree The owner tree
226 * @param {Node} parent The parent node
227 * @param {Node} node The child node to be removed
231 * @event beforemovenode
232 * Fires before a node is moved to a new location in the tree. Return false to cancel the move.
233 * @param {Tree} tree The owner tree
234 * @param {Node} node The node being moved
235 * @param {Node} oldParent The parent of the node
236 * @param {Node} newParent The new parent the node is moving to
237 * @param {Number} index The index it is being moved to
241 * @event beforeinsert
242 * Fires before a new child is inserted in a node in this tree, return false to cancel the insert.
243 * @param {Tree} tree The owner tree
244 * @param {Node} parent The parent node
245 * @param {Node} node The child node to be inserted
246 * @param {Node} refNode The child node the node is being inserted before
252 * Fires before a node is loaded, return false to cancel
253 * @param {Node} node The node being loaded
258 * Fires when a node is loaded
259 * @param {Node} node The node that was loaded
264 * Fires when the text for a node is changed
265 * @param {Node} node The node
266 * @param {String} text The new text
267 * @param {String} oldText The old text
271 * @event beforeexpandnode
272 * Fires before a node is expanded, return false to cancel.
273 * @param {Node} node The node
274 * @param {Boolean} deep
275 * @param {Boolean} anim
279 * @event beforecollapsenode
280 * Fires before a node is collapsed, return false to cancel.
281 * @param {Node} node The node
282 * @param {Boolean} deep
283 * @param {Boolean} anim
285 'beforecollapsenode',
288 * Fires when a node is expanded
289 * @param {Node} node The node
293 * @event disabledchange
294 * Fires when the disabled status of a node changes
295 * @param {Node} node The node
296 * @param {Boolean} disabled
300 * @event collapsenode
301 * Fires when a node is collapsed
302 * @param {Node} node The node
307 * Fires before click processing on a node. Return false to cancel the default action.
308 * @param {Node} node The node
309 * @param {Ext.EventObject} e The event object
314 * Fires when a node is clicked
315 * @param {Node} node The node
316 * @param {Ext.EventObject} e The event object
320 * @event containerclick
321 * Fires when the tree container is clicked
323 * @param {Ext.EventObject} e The event object
328 * Fires when a node with a checkbox's checked property changes
329 * @param {Node} this This node
330 * @param {Boolean} checked
334 * @event beforedblclick
335 * Fires before double click processing on a node. Return false to cancel the default action.
336 * @param {Node} node The node
337 * @param {Ext.EventObject} e The event object
342 * Fires when a node is double clicked
343 * @param {Node} node The node
344 * @param {Ext.EventObject} e The event object
348 * @event containerdblclick
349 * Fires when the tree container is double clicked
351 * @param {Ext.EventObject} e The event object
356 * Fires when a node is right clicked. To display a context menu in response to this
357 * event, first create a Menu object (see {@link Ext.menu.Menu} for details), then add
358 * a handler for this event:<pre><code>
359 new Ext.tree.TreePanel({
360 title: 'My TreePanel',
361 root: new Ext.tree.AsyncTreeNode({
364 { text: 'Child node 1', leaf: true },
365 { text: 'Child node 2', leaf: true }
368 contextMenu: new Ext.menu.Menu({
374 itemclick: function(item) {
377 var n = item.parentMenu.contextNode;
387 contextmenu: function(node, e) {
388 // Register the context node with the menu so that a Menu Item's handler function can access
389 // it via its {@link Ext.menu.BaseItem#parentMenu parentMenu} property.
391 var c = node.getOwnerTree().contextMenu;
392 c.contextNode = node;
398 * @param {Node} node The node
399 * @param {Ext.EventObject} e The event object
403 * @event containercontextmenu
404 * Fires when the tree container is right clicked
406 * @param {Ext.EventObject} e The event object
408 'containercontextmenu',
410 * @event beforechildrenrendered
411 * Fires right before the child nodes for a node are rendered
412 * @param {Node} node The node
414 'beforechildrenrendered',
417 * Fires when a node starts being dragged
418 * @param {Ext.tree.TreePanel} this
419 * @param {Ext.tree.TreeNode} node
420 * @param {event} e The raw browser event
425 * Fires when a drag operation is complete
426 * @param {Ext.tree.TreePanel} this
427 * @param {Ext.tree.TreeNode} node
428 * @param {event} e The raw browser event
433 * Fires when a dragged node is dropped on a valid DD target
434 * @param {Ext.tree.TreePanel} this
435 * @param {Ext.tree.TreeNode} node
436 * @param {DD} dd The dd it was dropped on
437 * @param {event} e The raw browser event
441 * @event beforenodedrop
442 * Fires when a DD object is dropped on a node in this tree for preprocessing. Return false to cancel the drop. The dropEvent
443 * passed to handlers has the following properties:<br />
444 * <ul style="padding:5px;padding-left:16px;">
445 * <li>tree - The TreePanel</li>
446 * <li>target - The node being targeted for the drop</li>
447 * <li>data - The drag data from the drag source</li>
448 * <li>point - The point of the drop - append, above or below</li>
449 * <li>source - The drag source</li>
450 * <li>rawEvent - Raw mouse event</li>
451 * <li>dropNode - Drop node(s) provided by the source <b>OR</b> you can supply node(s)
452 * to be inserted by setting them on this object.</li>
453 * <li>cancel - Set this to true to cancel the drop.</li>
454 * <li>dropStatus - If the default drop action is cancelled but the drop is valid, setting this to true
455 * will prevent the animated 'repair' from appearing.</li>
457 * @param {Object} dropEvent
462 * Fires after a DD object is dropped on a node in this tree. The dropEvent
463 * passed to handlers has the following properties:<br />
464 * <ul style="padding:5px;padding-left:16px;">
465 * <li>tree - The TreePanel</li>
466 * <li>target - The node being targeted for the drop</li>
467 * <li>data - The drag data from the drag source</li>
468 * <li>point - The point of the drop - append, above or below</li>
469 * <li>source - The drag source</li>
470 * <li>rawEvent - Raw mouse event</li>
471 * <li>dropNode - Dropped node(s).</li>
473 * @param {Object} dropEvent
477 * @event nodedragover
478 * Fires when a tree node is being targeted for a drag drop, return false to signal drop not allowed. The dragOverEvent
479 * passed to handlers has the following properties:<br />
480 * <ul style="padding:5px;padding-left:16px;">
481 * <li>tree - The TreePanel</li>
482 * <li>target - The node being targeted for the drop</li>
483 * <li>data - The drag data from the drag source</li>
484 * <li>point - The point of the drop - append, above or below</li>
485 * <li>source - The drag source</li>
486 * <li>rawEvent - Raw mouse event</li>
487 * <li>dropNode - Drop node(s) provided by the source.</li>
488 * <li>cancel - Set this to true to signal drop not allowed.</li>
490 * @param {Object} dragOverEvent
494 if(this.singleExpand){
495 this.on('beforeexpandnode', this.restrictExpand, this);
500 proxyNodeEvent : function(ename, a1, a2, a3, a4, a5, a6){
501 if(ename == 'collapse' || ename == 'expand' || ename == 'beforecollapse' || ename == 'beforeexpand' || ename == 'move' || ename == 'beforemove'){
502 ename = ename+'node';
504 // args inline for performance while bubbling events
505 return this.fireEvent(ename, a1, a2, a3, a4, a5, a6);
510 * Returns this root node for this tree
513 getRootNode : function(){
518 * Sets the root node for this tree. If the TreePanel has already rendered a root node, the
519 * previous root node (and all of its descendants) are destroyed before the new root node is rendered.
523 setRootNode : function(node){
525 if(!node.render){ // attributes passed
526 node = this.loader.createNode(node);
529 node.ownerTree = this;
531 this.registerNode(node);
532 if(!this.rootVisible){
533 var uiP = node.attributes.uiProvider;
534 node.ui = uiP ? new uiP(node) : new Ext.tree.RootTreeNodeUI(node);
543 clearInnerCt : function(){
544 this.innerCt.update('');
548 renderRoot : function(){
550 if(!this.rootVisible){
551 this.root.renderChildren();
556 * Gets a node in this tree by its id
560 getNodeById : function(id){
561 return this.nodeHash[id];
565 registerNode : function(node){
566 this.nodeHash[node.id] = node;
570 unregisterNode : function(node){
571 delete this.nodeHash[node.id];
575 toString : function(){
576 return '[Tree'+(this.id?' '+this.id:'')+']';
580 restrictExpand : function(node){
581 var p = node.parentNode;
583 if(p.expandedChild && p.expandedChild.parentNode == p){
584 p.expandedChild.collapse();
586 p.expandedChild = node;
591 * Retrieve an array of checked nodes, or an array of a specific attribute of checked nodes (e.g. 'id')
592 * @param {String} attribute (optional) Defaults to null (return the actual nodes)
593 * @param {TreeNode} startNode (optional) The node to start from, defaults to the root
596 getChecked : function(a, startNode){
597 startNode = startNode || this.root;
600 if(this.attributes.checked){
601 r.push(!a ? this : (a == 'id' ? this.id : this.attributes[a]));
604 startNode.cascade(f);
609 * Returns the default {@link Ext.tree.TreeLoader} for this TreePanel.
610 * @return {Ext.tree.TreeLoader} The TreeLoader for this TreePanel.
612 getLoader : function(){
619 expandAll : function(){
620 this.root.expand(true);
626 collapseAll : function(){
627 this.root.collapse(true);
631 * Returns the selection model used by this TreePanel.
632 * @return {TreeSelectionModel} The selection model used by this TreePanel
634 getSelectionModel : function(){
636 this.selModel = new Ext.tree.DefaultSelectionModel();
638 return this.selModel;
642 * Expands a specified path in this TreePanel. A path can be retrieved from a node with {@link Ext.data.Node#getPath}
643 * @param {String} path
644 * @param {String} attr (optional) The attribute used in the path (see {@link Ext.data.Node#getPath} for more info)
645 * @param {Function} callback (optional) The callback to call when the expand is complete. The callback will be called with
646 * (bSuccess, oLastNode) where bSuccess is if the expand was successful and oLastNode is the last node that was expanded.
648 expandPath : function(path, attr, callback){
650 var keys = path.split(this.pathSeparator);
651 var curNode = this.root;
652 if(curNode.attributes[attr] != keys[1]){ // invalid root
654 callback(false, null);
660 if(++index == keys.length){
662 callback(true, curNode);
666 var c = curNode.findChild(attr, keys[index]);
669 callback(false, curNode);
674 c.expand(false, false, f);
676 curNode.expand(false, false, f);
680 * Selects the node in this tree at the specified path. A path can be retrieved from a node with {@link Ext.data.Node#getPath}
681 * @param {String} path
682 * @param {String} attr (optional) The attribute used in the path (see {@link Ext.data.Node#getPath} for more info)
683 * @param {Function} callback (optional) The callback to call when the selection is complete. The callback will be called with
684 * (bSuccess, oSelNode) where bSuccess is if the selection was successful and oSelNode is the selected node.
686 selectPath : function(path, attr, callback){
688 var keys = path.split(this.pathSeparator),
691 var f = function(success, node){
693 var n = node.findChild(attr, v);
708 this.expandPath(keys.join(this.pathSeparator), attr, f);
712 callback(true, this.root);
718 * Returns the underlying Element for this tree
719 * @return {Ext.Element} The Element
721 getTreeEl : function(){
726 onRender : function(ct, position){
727 Ext.tree.TreePanel.superclass.onRender.call(this, ct, position);
728 this.el.addClass('x-tree');
729 this.innerCt = this.body.createChild({tag:'ul',
730 cls:'x-tree-root-ct ' +
731 (this.useArrows ? 'x-tree-arrows' : this.lines ? 'x-tree-lines' : 'x-tree-no-lines')});
735 initEvents : function(){
736 Ext.tree.TreePanel.superclass.initEvents.call(this);
738 if(this.containerScroll){
739 Ext.dd.ScrollManager.register(this.body);
741 if((this.enableDD || this.enableDrop) && !this.dropZone){
743 * The dropZone used by this tree if drop is enabled (see {@link #enableDD} or {@link #enableDrop})
745 * @type Ext.tree.TreeDropZone
747 this.dropZone = new Ext.tree.TreeDropZone(this, this.dropConfig || {
748 ddGroup: this.ddGroup || 'TreeDD', appendOnly: this.ddAppendOnly === true
751 if((this.enableDD || this.enableDrag) && !this.dragZone){
753 * The dragZone used by this tree if drag is enabled (see {@link #enableDD} or {@link #enableDrag})
755 * @type Ext.tree.TreeDragZone
757 this.dragZone = new Ext.tree.TreeDragZone(this, this.dragConfig || {
758 ddGroup: this.ddGroup || 'TreeDD',
759 scroll: this.ddScroll
762 this.getSelectionModel().init(this);
766 afterRender : function(){
767 Ext.tree.TreePanel.superclass.afterRender.call(this);
771 beforeDestroy : function(){
773 Ext.dd.ScrollManager.unregister(this.body);
774 Ext.destroy(this.dropZone, this.dragZone);
777 Ext.destroy(this.loader);
778 this.nodeHash = this.root = this.loader = null;
779 Ext.tree.TreePanel.superclass.beforeDestroy.call(this);
783 * Destroy the root node. Not included by itself because we need to pass the silent parameter.
786 destroyRoot : function(){
787 if(this.root && this.root.destroy){
788 this.root.destroy(true);
793 * @cfg {String/Number} activeItem
797 * @cfg {Boolean} autoDestroy
801 * @cfg {Object/String/Function} autoLoad
805 * @cfg {Boolean} autoWidth
809 * @cfg {Boolean/Number} bufferResize
813 * @cfg {String} defaultType
817 * @cfg {Object} defaults
821 * @cfg {Boolean} hideBorders
829 * @cfg {String} layout
833 * @cfg {Object} layoutConfig
837 * @cfg {Boolean} monitorResize
869 * @method getComponent
909 * @event beforeremove
920 * @cfg {String} allowDomMove @hide
923 * @cfg {String} autoEl @hide
926 * @cfg {String} applyTo @hide
929 * @cfg {String} contentEl @hide
932 * @cfg {Mixed} data @hide
935 * @cfg {Mixed} tpl @hide
938 * @cfg {String} tplWriteMode @hide
941 * @cfg {String} disabledClass @hide
944 * @cfg {String} elements @hide
947 * @cfg {String} html @hide
950 * @cfg {Boolean} preventBodyReset
958 * @method applyToMarkup
970 * @method setDisabled
975 Ext.tree.TreePanel.nodeTypes = {};
977 Ext.reg('treepanel', Ext.tree.TreePanel);</pre>