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////////////////////////////////////////////////////////////////////////////////
//
// Licensed to the Apache Software Foundation (ASF) under one or more
// contributor license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright ownership.
// The ASF licenses this file to You under the Apache License, Version 2.0
// (the "License"); you may not use this file except in compliance with
// the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
////////////////////////////////////////////////////////////////////////////////
package mx.events
{
import flash.events.Event;
import mx.controls.listClasses.IListItemRenderer;
/**
* The TreeEvent class represents the event object passed to the event
* listener for events that are associated with activities
* in tree, such as when a tree branch opens or closes.
*
* @see mx.controls.Tree
*
* @langversion 3.0
* @playerversion Flash 9
* @playerversion AIR 1.1
* @productversion Flex 3
*/
public class TreeEvent extends Event
{
include "../core/Version.as";
//--------------------------------------------------------------------------
//
// Class constants
//
//--------------------------------------------------------------------------
/**
* The TreeEvent.ITEM_CLOSE event type constant indicates that a tree
* branch closed or collapsed.
*
* <p>The properties of the event object for this event type have the
* following values.
* Not all properties are meaningful for all kinds of events.
* See the detailed property descriptions for more information.</p>
*
* <table class="innertable">
* <tr><th>Property</th><th>Value</th></tr>
* <tr><td><code>itemRenderer</code></td>
* <td>The ListItemRenderer for the node that closed</td></tr>
* <tr><td><code>bubbles</code></td><td>false</td></tr>
* <tr><td><code>cancelable</code></td><td>false</td></tr>
* <tr><td><code>currentTarget</code></td><td>The Object that defines the
* event listener that handles the event. For example, if you use
* <code>myButton.addEventListener()</code> to register an event listener,
* myButton is the value of the <code>currentTarget</code>. </td></tr>
* <tr><td><code>triggerEvent</code></td>
* <td>If the node closed in response to a user action,
* identifies it as a keyboard action or a mouse action.</td></tr>
* <tr><td><code>item</code></td><td>the Tree item (node) that closed</td></tr>
* <tr><td><code>target</code></td><td>The Object that dispatched the event;
* it is not always the Object listening for the event.
* Use the <code>currentTarget</code> property to always access the
* Object listening for the event.</td></tr>
* <tr><td><code>type</code></td><td>TreeEvent.ITEM_CLOSE</td></tr>
* </table>
*
* @eventType itemClose
*
* @langversion 3.0
* @playerversion Flash 9
* @playerversion AIR 1.1
* @productversion Flex 3
*/
public static const ITEM_CLOSE:String = "itemClose";
/**
* The TreeEvent.ITEM_OPEN event type constant indicates that a tree
* branch opened or expanded.
*
* <p>The properties of the event object for this event type have the
* following values.
* Not all properties are meaningful for all kinds of events.
* See the detailed property descriptions for more information.</p>
*
* <table class="innertable">
* <tr><th>Property</th><th>Value</th></tr>
* <tr><td><code>itemRenderer</code></td>
* <td>The ListItemRenderer for the item (node) that opened</td></tr>
* <tr><td><code>bubbles</code></td><td>false</td></tr>
* <tr><td><code>cancelable</code></td><td>false</td></tr>
* <tr><td><code>currentTarget</code></td><td>The Object that defines the
* event listener that handles the event. For example, if you use
* <code>myButton.addEventListener()</code> to register an event listener,
* myButton is the value of the <code>currentTarget</code>. </td></tr>
* <tr><td><code>triggerEvent</code></td>
* <td>If the item (node) opened in response to a user action,
* identifies it as a keyboard action or a mouse action.</td></tr>
* <tr><td><code>item</code></td><td>the Tree node that opened.</td></tr>
* <tr><td><code>target</code></td><td>The Object that dispatched the event;
* it is not always the Object listening for the event.
* Use the <code>currentTarget</code> property to always access the
* Object listening for the event.</td></tr>
* <tr><td><code>type</code></td><td>TreeEvent.ITEM_OPEN</td></tr>
* </table>
*
* @eventType itemOpen
*
* @langversion 3.0
* @playerversion Flash 9
* @playerversion AIR 1.1
* @productversion Flex 3
*/
public static const ITEM_OPEN:String = "itemOpen";
/**
* The TreeEvent.ITEM_OPENING event type constant is dispatched immediately
* before a tree opens or closes.
*
* <p>The properties of the event object for this event type have the
* following values.
* Not all properties are meaningful for all kinds of events.
* See the detailed property descriptions for more information.</p>
*
* <table class="innertable">
* <tr><th>Property</th><th>Value</th></tr>
* <tr><td><code>animate</code></td><td>Whether to animate the opening
* or closing operation.</td></tr>
* <tr><td><code>bubbles</code></td><td>false</td></tr>
* <tr><td><code>cancelable</code></td><td>true</td></tr>
* <tr><td><code>currentTarget</code></td><td>The Object that defines the
* event listener that handles the event. For example, if you use
* <code>myButton.addEventListener()</code> to register an event
* listener, myButton is the value of the <code>currentTarget</code>.</td></tr>
* <tr><td><code>dispatchEvent</code></td><td>Whether to dispatch an
* <code>ITEM_OPEN</code> or <code>ITEM_CLOSE</code> event
* after the open or close animation is complete. true</td></tr>
* <tr><td><code>itemRenderer</code></td>
* <td>The ListItemRenderer for the item (node) that opened</td></tr>
* <tr><td><code>item</code></td><td>the Tree node that opened.</td></tr>
* <tr><td><code>opening</code></td><td>true if the item is opening, false
* if it is closing.</td></tr>
* <tr><td><code>target</code></td><td>The Object that dispatched the event;
* it is not always the Object listening for the event.
* Use the <code>currentTarget</code> property to always access the
* Object listening for the event.</td></tr>
* <tr><td><code>triggerEvent</code></td>
* <td>If the item opened in response to a user action,
* identifies it as a keyboard action or a mouse action.</td></tr>
* <tr><td><code>type</code></td><td>TreeEvent.ITEM_OPENING</td></tr>
* </table>
*
* @eventType itemOpening
*
* @langversion 3.0
* @playerversion Flash 9
* @playerversion AIR 1.1
* @productversion Flex 3
*/
public static const ITEM_OPENING:String = "itemOpening";
//--------------------------------------------------------------------------
//
// Constructor
//
//--------------------------------------------------------------------------
/**
* Constructor.
* Normally called by the Flex Tree control; not used in application code.
*
* @param type The event type; indicates the action that caused the event.
*
* @param bubbles Specifies whether the event can bubble
* up the display list hierarchy.
*
* @param cancelable Specifies whether the behavior associated with the event
* can be prevented.
*
* @param item The Tree node (item) to which this event applies.
*
* @param itemRenderer The item renderer object for the cell.
*
* @param triggerEvent If the node opened or closed in response to a
* user action, indicates the type of input action.
*
* @langversion 3.0
* @playerversion Flash 9
* @playerversion AIR 1.1
* @productversion Flex 3
*/
public function TreeEvent(type:String, bubbles:Boolean = false,
cancelable:Boolean = false,
item:Object = null,
itemRenderer:IListItemRenderer = null,
triggerEvent:Event = null)
{
super(type, bubbles, cancelable);
this.item = item;
this.itemRenderer = itemRenderer;
this.triggerEvent = triggerEvent;
}
//--------------------------------------------------------------------------
//
// Properties
//
//--------------------------------------------------------------------------
//----------------------------------
// animate
//----------------------------------
/**
* Whether to animate an opening or closing operation; used for
* ITEM_OPENING type events only.
*
* @langversion 3.0
* @playerversion Flash 9
* @playerversion AIR 1.1
* @productversion Flex 3
*/
public var animate:Boolean;
//----------------------------------
// dispatchEvent
//----------------------------------
/**
* Whether to dispatch an event (<code>ITEM_OPEN</code> or
* <code>ITEM_CLOSE</code>) after the open or close animation
* is complete. Used for ITEM_OPENING type events only.
*
* @langversion 3.0
* @playerversion Flash 9
* @playerversion AIR 1.1
* @productversion Flex 3
*/
public var dispatchEvent:Boolean;
//----------------------------------
// item
//----------------------------------
/**
* Storage for the item property.
* If you populate the Tree from XML data, access
* the properties for the node as
* <code>event.item.&#64;<i>attribute_name</i></code>.
*
* @langversion 3.0
* @playerversion Flash 9
* @playerversion AIR 1.1
* @productversion Flex 3
*/
public var item:Object;
//----------------------------------
// itemRenderer
//----------------------------------
/**
* The ListItemRenderer for the node that closed or opened.
*
* @langversion 3.0
* @playerversion Flash 9
* @playerversion AIR 1.1
* @productversion Flex 3
*/
public var itemRenderer:IListItemRenderer;
//----------------------------------
// opening
//----------------------------------
/**
* Used for an <code>ITEM_OPENING</code> type events only.
* Indicates whether the item
* is opening <code>true</code>, or closing <code>false</code>.
*
* @langversion 3.0
* @playerversion Flash 9
* @playerversion AIR 1.1
* @productversion Flex 3
*/
public var opening:Boolean;
//----------------------------------
// triggerEvent
//----------------------------------
/**
* The low level MouseEvent or KeyboardEvent that triggered this
* event or <code>null</code> if this event was triggered programatically.
*
* @langversion 3.0
* @playerversion Flash 9
* @playerversion AIR 1.1
* @productversion Flex 3
*/
public var triggerEvent:Event;
//--------------------------------------------------------------------------
//
// Overridden methods: Event
//
//--------------------------------------------------------------------------
/**
* @private
*/
override public function clone():Event
{
return new TreeEvent(type, bubbles, cancelable,
item, itemRenderer, triggerEvent);
}
}
}