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<h1>Class Ext.data.Tree</h1>
<table cellspacing="0">
<tr><td class="label">Package:</td><td>Ext.data</td></tr>
<tr><td class="label">Class:</td><td>Tree</td></tr>
<tr><td class="label">Extends:</td><td><a href="Ext.util.Observable.html">Observable</a></td></tr>
<tr><td class="label">Subclasses:</td><td><a href="Ext.tree.TreePanel.html">TreePanel</a></td></tr>
<tr><td class="label">Defined In:</td><td><a href="Tree.jss.html">Tree.js</a></td></tr>
</table>
<div class="description">
Represents a tree data structure and bubbles all the events for its nodes. The nodes
in the tree have most standard DOM functionality. </div>
<br />
<a href="#properties">Properties</a>
&nbsp;&nbsp;-&nbsp;&nbsp;<a href="#methods">Methods</a>
&nbsp;&nbsp;-&nbsp;&nbsp;<a href="#events">Events</a>
<hr />
<a name="properties"></a>
<h2>Public Properties</h2>
<table cellspacing="0" class="member-table">
<tr>
<th class="sig-header" colspan="2">Property</th>
<th class="msource-header">Defined By</th>
</tr>
<tr>
<td class="micon" rowspan="2">&nbsp;</td>
<td class="sig"><a class="mlink" href="#root">root</a> : Node</td>
<td class="msource" rowspan="2">Tree</td>
</tr>
<tr>
<td class="mdesc">The root node for this tree</td>
</tr>
</table>
<a name="methods"></a>
<h2>Public Methods</h2>
<table cellspacing="0" class="member-table">
<tr>
<th class="sig-header" colspan="2">Method</th>
<th class="msource-header">Defined By</th>
</tr>
<tr>
<td class="micon" rowspan="2">&nbsp;</td>
<td class="sig"><a class="mlink" href="#Tree">Tree</a>(<span class="optional" title="Optional">[<code>Node root</code>]</span>)</td>
<td class="msource" rowspan="2">Tree</td>
</tr>
<tr>
<td class="mdesc"></td>
</tr>
<tr class="alt">
<td class="micon inherited" title="Inherited" rowspan="2">&nbsp;</td>
<td class="sig"><a class="mlink" href="#addEvents">addEvents</a>(<code>Object object</code>) : void</td>
<td class="msource" rowspan="2"><a href="Ext.util.Observable.html#addEvents">Observable</a></td>
</tr>
<tr class="alt">
<td class="mdesc">Copies any events from the passed object onto this object if they do not already exist. The passed object
must also ...</td>
</tr>
<tr>
<td class="micon inherited" title="Inherited" rowspan="2">&nbsp;</td>
<td class="sig"><a class="mlink" href="#addListener">addListener</a>(<code>String eventName</code>, <code>Function handler</code>, <span class="optional" title="Optional">[<code>Object scope</code>]</span>, <span class="optional" title="Optional">[<code>Object options</code>]</span>) : void</td>
<td class="msource" rowspan="2"><a href="Ext.util.Observable.html#addListener">Observable</a></td>
</tr>
<tr>
<td class="mdesc">Appends an event handler to this component</td>
</tr>
<tr class="alt">
<td class="micon inherited" title="Inherited" rowspan="2">&nbsp;</td>
<td class="sig"><a class="mlink" href="#fireEvent">fireEvent</a>(<code>String eventName</code>, <code>Object... args</code>) : Boolean</td>
<td class="msource" rowspan="2"><a href="Ext.util.Observable.html#fireEvent">Observable</a></td>
</tr>
<tr class="alt">
<td class="mdesc">Fires the specified event with the passed parameters (minus the event name).</td>
</tr>
<tr>
<td class="micon" rowspan="2">&nbsp;</td>
<td class="sig"><a class="mlink" href="#getNodeById">getNodeById</a>(<code>String id</code>) : Node</td>
<td class="msource" rowspan="2">Tree</td>
</tr>
<tr>
<td class="mdesc">Gets a node in this tree by its id</td>
</tr>
<tr class="alt">
<td class="micon" rowspan="2">&nbsp;</td>
<td class="sig"><a class="mlink" href="#getRootNode">getRootNode</a>() : Node</td>
<td class="msource" rowspan="2">Tree</td>
</tr>
<tr class="alt">
<td class="mdesc">Returns this root node for this tree</td>
</tr>
<tr>
<td class="micon inherited" title="Inherited" rowspan="2">&nbsp;</td>
<td class="sig"><a class="mlink" href="#hasListener">hasListener</a>(<code>String eventName</code>) : Boolean</td>
<td class="msource" rowspan="2"><a href="Ext.util.Observable.html#hasListener">Observable</a></td>
</tr>
<tr>
<td class="mdesc">Checks to see if this object is currently listening for a specified event</td>
</tr>
<tr class="alt">
<td class="micon inherited" title="Inherited" rowspan="2">&nbsp;</td>
<td class="sig"><a class="mlink" href="#on">on</a>(<code>String eventName</code>, <code>Function handler</code>, <span class="optional" title="Optional">[<code>Object options</code>]</span>) : void</td>
<td class="msource" rowspan="2"><a href="Ext.util.Observable.html#on">Observable</a></td>
</tr>
<tr class="alt">
<td class="mdesc">Appends an event handler to this element (shorthand for addListener)</td>
</tr>
<tr>
<td class="micon inherited" title="Inherited" rowspan="2">&nbsp;</td>
<td class="sig"><a class="mlink" href="#purgeListeners">purgeListeners</a>() : void</td>
<td class="msource" rowspan="2"><a href="Ext.util.Observable.html#purgeListeners">Observable</a></td>
</tr>
<tr>
<td class="mdesc">Removes all listeners for this object</td>
</tr>
<tr class="alt">
<td class="micon inherited" title="Inherited" rowspan="2">&nbsp;</td>
<td class="sig"><a class="mlink" href="#removeListener">removeListener</a>(<code>String eventName</code>, <code>Function handler</code>, <span class="optional" title="Optional">[<code>Object scope</code>]</span>) : void</td>
<td class="msource" rowspan="2"><a href="Ext.util.Observable.html#removeListener">Observable</a></td>
</tr>
<tr class="alt">
<td class="mdesc">Removes a listener</td>
</tr>
<tr>
<td class="micon" rowspan="2">&nbsp;</td>
<td class="sig"><a class="mlink" href="#setRootNode">setRootNode</a>(<code>Node node</code>) : Node</td>
<td class="msource" rowspan="2">Tree</td>
</tr>
<tr>
<td class="mdesc">Sets the root node for this tree</td>
</tr>
<tr class="alt">
<td class="micon inherited" title="Inherited" rowspan="2">&nbsp;</td>
<td class="sig"><a class="mlink" href="#un">un</a>(<code>String eventName</code>, <code>Function handler</code>, <span class="optional" title="Optional">[<code>Object scope</code>]</span>) : void</td>
<td class="msource" rowspan="2"><a href="Ext.util.Observable.html#un">Observable</a></td>
</tr>
<tr class="alt">
<td class="mdesc">Removes a listener (shorthand for removeListener)</td>
</tr>
</table>
<a name="events"></a>
<h2>Public Events</h2>
<table cellspacing="0" class="member-table">
<tr>
<th class="sig-header" colspan="2">Event</th>
<th class="msource-header">Defined By</th>
</tr>
<tr>
<td class="micon" rowspan="2">&nbsp;</td>
<td class="sig"><a class="mlink" href="#event-append">append</a> : (<code>Tree tree</code>, <code>Node parent</code>, <code>Node node</code>, <code>Number index</code>)</td>
<td class="msource" rowspan="2">Tree</td>
</tr>
<tr>
<td class="mdesc">Fires when a new child node is appended to a node in this tree.</td>
</tr>
<tr class="alt">
<td class="micon" rowspan="2">&nbsp;</td>
<td class="sig"><a class="mlink" href="#event-beforeappend">beforeappend</a> : (<code>Tree tree</code>, <code>Node parent</code>, <code>Node node</code>)</td>
<td class="msource" rowspan="2">Tree</td>
</tr>
<tr class="alt">
<td class="mdesc">Fires before a new child is appended to a node in this tree, return false to cancel the append.</td>
</tr>
<tr>
<td class="micon" rowspan="2">&nbsp;</td>
<td class="sig"><a class="mlink" href="#event-beforeinsert">beforeinsert</a> : (<code>Tree tree</code>, <code>Node parent</code>, <code>Node node</code>, <code>Node refNode</code>)</td>
<td class="msource" rowspan="2">Tree</td>
</tr>
<tr>
<td class="mdesc">Fires before a new child is inserted in a node in this tree, return false to cancel the insert.</td>
</tr>
<tr class="alt">
<td class="micon" rowspan="2">&nbsp;</td>
<td class="sig"><a class="mlink" href="#event-beforemove">beforemove</a> : (<code>Tree tree</code>, <code>Node node</code>, <code>Node oldParent</code>, <code>Node newParent</code>, <code>Number index</code>)</td>
<td class="msource" rowspan="2">Tree</td>
</tr>
<tr class="alt">
<td class="mdesc">Fires before a node is moved to a new location in the tree. Return false to cancel the move.</td>
</tr>
<tr>
<td class="micon" rowspan="2">&nbsp;</td>
<td class="sig"><a class="mlink" href="#event-beforeremove">beforeremove</a> : (<code>Tree tree</code>, <code>Node parent</code>, <code>Node node</code>)</td>
<td class="msource" rowspan="2">Tree</td>
</tr>
<tr>
<td class="mdesc">Fires before a child is removed from a node in this tree, return false to cancel the remove.</td>
</tr>
<tr class="alt">
<td class="micon" rowspan="2">&nbsp;</td>
<td class="sig"><a class="mlink" href="#event-insert">insert</a> : (<code>Tree tree</code>, <code>Node parent</code>, <code>Node node</code>, <code>Node refNode</code>)</td>
<td class="msource" rowspan="2">Tree</td>
</tr>
<tr class="alt">
<td class="mdesc">Fires when a new child node is inserted in a node in this tree.</td>
</tr>
<tr>
<td class="micon" rowspan="2">&nbsp;</td>
<td class="sig"><a class="mlink" href="#event-move">move</a> : (<code>Tree tree</code>, <code>Node node</code>, <code>Node oldParent</code>, <code>Node newParent</code>, <code>Number index</code>)</td>
<td class="msource" rowspan="2">Tree</td>
</tr>
<tr>
<td class="mdesc">Fires when a node is moved to a new location in the tree</td>
</tr>
<tr class="alt">
<td class="micon" rowspan="2">&nbsp;</td>
<td class="sig"><a class="mlink" href="#event-remove">remove</a> : (<code>Tree tree</code>, <code>Node parent</code>, <code>Node node</code>)</td>
<td class="msource" rowspan="2">Tree</td>
</tr>
<tr class="alt">
<td class="mdesc">Fires when a child node is removed from a node in this tree.</td>
</tr>
</table>
<h2 class="mdetail-head">Property Details</h2>
<div class="detail-wrap">
<a name="root"></a>
<div class="mdetail">
<h3>root</i></h3>
<code>public Node root</code>
<div class="mdetail-desc">
The root node for this tree </div>
<div class="mdetail-def">This property is defined by Tree.</div>
</div>
</div>
<a name="Tree"></a>
<h2 class="mdetail-head">Constructor Details</h2>
<div class="detail-wrap">
<div class="mdetail">
<h3>Tree</i></h3>
<code>public function Tree(<span class="optional" title="Optional">[<code>Node root</code>]</span>)</code>
<div class="mdetail-desc">
<div class="mdetail-params">
<strong>Parameters:</strong>
<ul><li><code>root</code> : Node<div class="sub-desc">(optional) The root node</div></li> </ul>
</div>
</div>
</div>
</div>
<h2 class="mdetail-head">Method Details</h2>
<div class="detail-wrap">
<a name="addEvents"></a>
<div class="mdetail">
<h3>addEvents</i></h3>
<code>public function addEvents(<code>Object object</code>)</code>
<div class="mdetail-desc">
Copies any events from the passed object onto this object if they do not already exist. The passed object
must also inherit from Observable for this method to have any effect.
<div class="mdetail-params">
<strong>Parameters:</strong>
<ul><li><code>object</code> : Object<div class="sub-desc">The object from which to copy events</div></li> </ul>
<strong>Returns:</strong>
<ul>
<li><code>void</code></li>
</ul>
</div>
</div>
<div class="mdetail-def">This method is defined by <a href="Ext.util.Observable.html#addEvents">Observable</a>.</div>
</div>
<a name="addListener"></a>
<div class="mdetail alt">
<h3>addListener</i></h3>
<code>public function addListener(<code>String eventName</code>, <code>Function handler</code>, <span class="optional" title="Optional">[<code>Object scope</code>]</span>, <span class="optional" title="Optional">[<code>Object options</code>]</span>)</code>
<div class="mdetail-desc">
Appends an event handler to this component
<div class="mdetail-params">
<strong>Parameters:</strong>
<ul><li><code>eventName</code> : String<div class="sub-desc">The type of event to listen for</div></li><li><code>handler</code> : Function<div class="sub-desc">The method the event invokes</div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope in which to execute the handler function. The handler function's "this" context.</div></li><li><code>options</code> : Object<div class="sub-desc">(optional) An object containing handler configuration properties. This may contain any of the following properties:<ul> <li>scope {Object} The scope in which to execute the handler function. The handler function's "this" context.</li> <li>delegate {String} A simple selector to filter the target or look for a descendant of the target</li> <li>stopEvent {Boolean} True to stop the event. That is stop propagation, and prevent the default action.</li> <li>preventDefault {Boolean} True to prevent the default action</li> <li>stopPropagation {Boolean} True to prevent event propagation</li> <li>normalized {Boolean} False to pass a browser event to the handler function instead of an Ext.EventObject</li> <li>delay {Number} The number of milliseconds to delay the invocation of the handler after te event fires.</li> <li>single {Boolean} True to add a handler to handle just the next firing of the event, and then remove itself.</li> <li>buffer {Number} Causes the handler to be scheduled to run in an <a href="Ext.util.DelayedTask.html">Ext.util.DelayedTask</a> delayed by the specified number of milliseconds. If the event fires again within that time, the original handler is <em>not</em> invoked, but the new handler is scheduled in its place.</li> </ul> <p> <b>Combining Options</b><br> Using the options argument, it is possible to combine different types of listeners:<br> <br> A normalized, delayed, one-time listener that auto stops the event and passes a custom argument (forumId)<div style="margin: 5px 20px 20px;"> Code: <pre><code>el.on('click', this.onClick, this, { single: true, delay: 100, stopEvent : true, forumId: 4 });</pre> <p> The method also allows for a single argument to be passed which is a config object containing properties which specify multiple handlers. <p> <b>Attaching multiple handlers in 1 call</b><br> Code: <pre><code>el.on({ 'click' : { fn: this.onClick scope: this, delay: 100 }, 'mouseover' : { fn: this.onMouseOver scope: this }, 'mouseout' : { fn: this.onMouseOut scope: this } });</pre> <p> Or a shorthand syntax:<br> Code: <pre><code>el.on({ 'click' : this.onClick, 'mouseover' : this.onMouseOver, 'mouseout' : this.onMouseOut scope: this });</pre></div></li> </ul>
<strong>Returns:</strong>
<ul>
<li><code>void</code></li>
</ul>
</div>
</div>
<div class="mdetail-def">This method is defined by <a href="Ext.util.Observable.html#addListener">Observable</a>.</div>
</div>
<a name="fireEvent"></a>
<div class="mdetail">
<h3>fireEvent</i></h3>
<code>public function fireEvent(<code>String eventName</code>, <code>Object... args</code>)</code>
<div class="mdetail-desc">
Fires the specified event with the passed parameters (minus the event name).
<div class="mdetail-params">
<strong>Parameters:</strong>
<ul><li><code>eventName</code> : String<div class="sub-desc"></div></li><li><code>args</code> : Object...<div class="sub-desc">Variable number of parameters are passed to handlers</div></li> </ul>
<strong>Returns:</strong>
<ul>
<li><code>Boolean</code><div class="sub-desc">returns false if any of the handlers return false otherwise it returns true</div></li>
</ul>
</div>
</div>
<div class="mdetail-def">This method is defined by <a href="Ext.util.Observable.html#fireEvent">Observable</a>.</div>
</div>
<a name="getNodeById"></a>
<div class="mdetail alt">
<h3>getNodeById</i></h3>
<code>public function getNodeById(<code>String id</code>)</code>
<div class="mdetail-desc">
Gets a node in this tree by its id
<div class="mdetail-params">
<strong>Parameters:</strong>
<ul><li><code>id</code> : String<div class="sub-desc"></div></li> </ul>
<strong>Returns:</strong>
<ul>
<li><code>Node</code></li>
</ul>
</div>
</div>
<div class="mdetail-def">This method is defined by Tree.</div>
</div>
<a name="getRootNode"></a>
<div class="mdetail">
<h3>getRootNode</i></h3>
<code>public function getRootNode()</code>
<div class="mdetail-desc">
Returns this root node for this tree
<div class="mdetail-params">
<strong>Parameters:</strong>
<ul><li>None.</li> </ul>
<strong>Returns:</strong>
<ul>
<li><code>Node</code></li>
</ul>
</div>
</div>
<div class="mdetail-def">This method is defined by Tree.</div>
</div>
<a name="hasListener"></a>
<div class="mdetail alt">
<h3>hasListener</i></h3>
<code>public function hasListener(<code>String eventName</code>)</code>
<div class="mdetail-desc">
Checks to see if this object is currently listening for a specified event
<div class="mdetail-params">
<strong>Parameters:</strong>
<ul><li><code>eventName</code> : String<div class="sub-desc">The name of the event to check for</div></li> </ul>
<strong>Returns:</strong>
<ul>
<li><code>Boolean</code><div class="sub-desc">True if the event is being listened for, else false</div></li>
</ul>
</div>
</div>
<div class="mdetail-def">This method is defined by <a href="Ext.util.Observable.html#hasListener">Observable</a>.</div>
</div>
<a name="on"></a>
<div class="mdetail">
<h3>on</i></h3>
<code>public function on(<code>String eventName</code>, <code>Function handler</code>, <span class="optional" title="Optional">[<code>Object options</code>]</span>)</code>
<div class="mdetail-desc">
Appends an event handler to this element (shorthand for addListener)
<div class="mdetail-params">
<strong>Parameters:</strong>
<ul><li><code>eventName</code> : String<div class="sub-desc">The type of event to listen for</div></li><li><code>handler</code> : Function<div class="sub-desc">The method the event invokes</div></li><li><code>options</code> : Object<div class="sub-desc">(optional)</div></li> </ul>
<strong>Returns:</strong>
<ul>
<li><code>void</code></li>
</ul>
</div>
</div>
<div class="mdetail-def">This method is defined by <a href="Ext.util.Observable.html#on">Observable</a>.</div>
</div>
<a name="purgeListeners"></a>
<div class="mdetail alt">
<h3>purgeListeners</i></h3>
<code>public function purgeListeners()</code>
<div class="mdetail-desc">
Removes all listeners for this object
<div class="mdetail-params">
<strong>Parameters:</strong>
<ul><li>None.</li> </ul>
<strong>Returns:</strong>
<ul>
<li><code>void</code></li>
</ul>
</div>
</div>
<div class="mdetail-def">This method is defined by <a href="Ext.util.Observable.html#purgeListeners">Observable</a>.</div>
</div>
<a name="removeListener"></a>
<div class="mdetail">
<h3>removeListener</i></h3>
<code>public function removeListener(<code>String eventName</code>, <code>Function handler</code>, <span class="optional" title="Optional">[<code>Object scope</code>]</span>)</code>
<div class="mdetail-desc">
Removes a listener
<div class="mdetail-params">
<strong>Parameters:</strong>
<ul><li><code>eventName</code> : String<div class="sub-desc">The type of event to listen for</div></li><li><code>handler</code> : Function<div class="sub-desc">The handler to remove</div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope (this object) for the handler</div></li> </ul>
<strong>Returns:</strong>
<ul>
<li><code>void</code></li>
</ul>
</div>
</div>
<div class="mdetail-def">This method is defined by <a href="Ext.util.Observable.html#removeListener">Observable</a>.</div>
</div>
<a name="setRootNode"></a>
<div class="mdetail alt">
<h3>setRootNode</i></h3>
<code>public function setRootNode(<code>Node node</code>)</code>
<div class="mdetail-desc">
Sets the root node for this tree
<div class="mdetail-params">
<strong>Parameters:</strong>
<ul><li><code>node</code> : Node<div class="sub-desc"></div></li> </ul>
<strong>Returns:</strong>
<ul>
<li><code>Node</code></li>
</ul>
</div>
</div>
<div class="mdetail-def">This method is defined by Tree.</div>
</div>
<a name="un"></a>
<div class="mdetail">
<h3>un</i></h3>
<code>public function un(<code>String eventName</code>, <code>Function handler</code>, <span class="optional" title="Optional">[<code>Object scope</code>]</span>)</code>
<div class="mdetail-desc">
Removes a listener (shorthand for removeListener)
<div class="mdetail-params">
<strong>Parameters:</strong>
<ul><li><code>eventName</code> : String<div class="sub-desc">The type of event to listen for</div></li><li><code>handler</code> : Function<div class="sub-desc">The handler to remove</div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope (this object) for the handler</div></li> </ul>
<strong>Returns:</strong>
<ul>
<li><code>void</code></li>
</ul>
</div>
</div>
<div class="mdetail-def">This method is defined by <a href="Ext.util.Observable.html#un">Observable</a>.</div>
</div>
</div>
<h2 class="mdetail-head">Event Details</h2>
<div class="detail-wrap">
<a name="event-append"></a>
<div class="mdetail">
<h3>append</i></h3>
<code>public event append</code>
<div class="mdetail-desc">
Fires when a new child node is appended to a node in this tree.
<div class="mdetail-params">
<strong style="font-weight:normal;">Subscribers will be called with the following parameters:</strong>
<ul><li><code>tree</code> : Tree<div class="sub-desc">The owner tree</div></li><li><code>parent</code> : Node<div class="sub-desc">The parent node</div></li><li><code>node</code> : Node<div class="sub-desc">The newly appended node</div></li><li><code>index</code> : Number<div class="sub-desc">The index of the newly appended node</div></li> </ul>
</div>
</div>
<div class="mdetail-def">This event is defined by Tree.</div>
</div>
<a name="event-beforeappend"></a>
<div class="mdetail alt">
<h3>beforeappend</i></h3>
<code>public event beforeappend</code>
<div class="mdetail-desc">
Fires before a new child is appended to a node in this tree, return false to cancel the append.
<div class="mdetail-params">
<strong style="font-weight:normal;">Subscribers will be called with the following parameters:</strong>
<ul><li><code>tree</code> : Tree<div class="sub-desc">The owner tree</div></li><li><code>parent</code> : Node<div class="sub-desc">The parent node</div></li><li><code>node</code> : Node<div class="sub-desc">The child node to be appended</div></li> </ul>
</div>
</div>
<div class="mdetail-def">This event is defined by Tree.</div>
</div>
<a name="event-beforeinsert"></a>
<div class="mdetail">
<h3>beforeinsert</i></h3>
<code>public event beforeinsert</code>
<div class="mdetail-desc">
Fires before a new child is inserted in a node in this tree, return false to cancel the insert.
<div class="mdetail-params">
<strong style="font-weight:normal;">Subscribers will be called with the following parameters:</strong>
<ul><li><code>tree</code> : Tree<div class="sub-desc">The owner tree</div></li><li><code>parent</code> : Node<div class="sub-desc">The parent node</div></li><li><code>node</code> : Node<div class="sub-desc">The child node to be inserted</div></li><li><code>refNode</code> : Node<div class="sub-desc">The child node the node is being inserted before</div></li> </ul>
</div>
</div>
<div class="mdetail-def">This event is defined by Tree.</div>
</div>
<a name="event-beforemove"></a>
<div class="mdetail alt">
<h3>beforemove</i></h3>
<code>public event beforemove</code>
<div class="mdetail-desc">
Fires before a node is moved to a new location in the tree. Return false to cancel the move.
<div class="mdetail-params">
<strong style="font-weight:normal;">Subscribers will be called with the following parameters:</strong>
<ul><li><code>tree</code> : Tree<div class="sub-desc">The owner tree</div></li><li><code>node</code> : Node<div class="sub-desc">The node being moved</div></li><li><code>oldParent</code> : Node<div class="sub-desc">The parent of the node</div></li><li><code>newParent</code> : Node<div class="sub-desc">The new parent the node is moving to</div></li><li><code>index</code> : Number<div class="sub-desc">The index it is being moved to</div></li> </ul>
</div>
</div>
<div class="mdetail-def">This event is defined by Tree.</div>
</div>
<a name="event-beforeremove"></a>
<div class="mdetail">
<h3>beforeremove</i></h3>
<code>public event beforeremove</code>
<div class="mdetail-desc">
Fires before a child is removed from a node in this tree, return false to cancel the remove.
<div class="mdetail-params">
<strong style="font-weight:normal;">Subscribers will be called with the following parameters:</strong>
<ul><li><code>tree</code> : Tree<div class="sub-desc">The owner tree</div></li><li><code>parent</code> : Node<div class="sub-desc">The parent node</div></li><li><code>node</code> : Node<div class="sub-desc">The child node to be removed</div></li> </ul>
</div>
</div>
<div class="mdetail-def">This event is defined by Tree.</div>
</div>
<a name="event-insert"></a>
<div class="mdetail alt">
<h3>insert</i></h3>
<code>public event insert</code>
<div class="mdetail-desc">
Fires when a new child node is inserted in a node in this tree.
<div class="mdetail-params">
<strong style="font-weight:normal;">Subscribers will be called with the following parameters:</strong>
<ul><li><code>tree</code> : Tree<div class="sub-desc">The owner tree</div></li><li><code>parent</code> : Node<div class="sub-desc">The parent node</div></li><li><code>node</code> : Node<div class="sub-desc">The child node inserted</div></li><li><code>refNode</code> : Node<div class="sub-desc">The child node the node was inserted before</div></li> </ul>
</div>
</div>
<div class="mdetail-def">This event is defined by Tree.</div>
</div>
<a name="event-move"></a>
<div class="mdetail">
<h3>move</i></h3>
<code>public event move</code>
<div class="mdetail-desc">
Fires when a node is moved to a new location in the tree
<div class="mdetail-params">
<strong style="font-weight:normal;">Subscribers will be called with the following parameters:</strong>
<ul><li><code>tree</code> : Tree<div class="sub-desc">The owner tree</div></li><li><code>node</code> : Node<div class="sub-desc">The node moved</div></li><li><code>oldParent</code> : Node<div class="sub-desc">The old parent of this node</div></li><li><code>newParent</code> : Node<div class="sub-desc">The new parent of this node</div></li><li><code>index</code> : Number<div class="sub-desc">The index it was moved to</div></li> </ul>
</div>
</div>
<div class="mdetail-def">This event is defined by Tree.</div>
</div>
<a name="event-remove"></a>
<div class="mdetail alt">
<h3>remove</i></h3>
<code>public event remove</code>
<div class="mdetail-desc">
Fires when a child node is removed from a node in this tree.
<div class="mdetail-params">
<strong style="font-weight:normal;">Subscribers will be called with the following parameters:</strong>
<ul><li><code>tree</code> : Tree<div class="sub-desc">The owner tree</div></li><li><code>parent</code> : Node<div class="sub-desc">The parent node</div></li><li><code>node</code> : Node<div class="sub-desc">The child node removed</div></li> </ul>
</div>
</div>
<div class="mdetail-def">This event is defined by Tree.</div>
</div>
</div>
</div>
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