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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 spark.events
{
import flash.events.Event;
import spark.components.gridClasses.CellRegion;
/**
* The GridSelectionEvent class represents events that are dispatched when
* the selection changes in a Spark DataGrid control as the
* result of user interaction.
*
* @see spark.events.GridSelectionEventKind
* @see spark.components.DataGrid
* @see spark.components.Grid
*
* @langversion 3.0
* @playerversion Flash 10
* @playerversion AIR 2.5
* @productversion Flex 4.5
*/
public class GridSelectionEvent extends Event
{
include "../core/Version.as";
//--------------------------------------------------------------------------
//
// Class constants
//
//--------------------------------------------------------------------------
/**
* The <code>GridSelectionEvent.SELECTION_CHANGE</code> constant defines
* the value of the <code>type</code> property of the event object for a
* <code>selectionChange</code> event, which indicates that the current
* selection has just been changed.
*
* <p>This event is dispatched when the user interacts with the control.
* When you sort the data provider's collection programmatically,
* the component does not dispatch the <code>selectionChange</code> event. </p>
*
* <p>The properties of the event object have the following values:</p>
* <table class="innertable">
* <tr><th>Property</th><th>Value</th></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>kind<code></code></td><td>The kind of changing event.
* The valid values are defined in GridSelectionEventKind
* class as constants. This value determines which properties in
* the event are used.</td></tr>
* <tr><td><code>selectionChange</code></td><td>The just completed selection
* change that was triggered by a user gesture. Use the DataGrid
* selection methods to determine the current selection.</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>GridSelectionEvent.SELECTION_CHANGE</td></tr>
* </table>
*
* @eventType selectionChange
*
* @see spark.components.DataGrid#selectedCells
* @see spark.components.DataGrid#selectedIndices
*
* @langversion 3.0
* @playerversion Flash 10
* @playerversion AIR 2.5
* @productversion Flex 4.5
*/
public static const SELECTION_CHANGE:String = "selectionChange";
/**
* The <code>GridSelectionEvent.SELECTION_CHANGING</code> constant defines
* the value of the <code>type</code> property of the event object for a
* <code>selectionChanging</code> event, which indicates that the current
* selection is about to change. Call preventDefault() on this event
* to prevent the selection from changing.
*
* <p>This event is dispatched when the user interacts with the control.
* When you sort the data provider's collection programmatically,
* the component does not dispatch the <code>selectionChanging</code> event. </p>
*
* <p>The properties of the event object have the following values:</p>
* <table class="innertable">
* <tr><th>Property</th><th>Value</th></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>kind<code></code></td><td>The kind of changing event.
* The valid values are defined in GridSelectionEventKind
* class as constants. This value determines which properties in
* the event are used.</td></tr>
* <tr><td><code>selectionChange</code></td><td>The upcoming selection
* change that is triggered by a user gesture.</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>GridSelectionEvent.SELECTION_CHANGING</td></tr>
* </table>
*
* @eventType selectionChanging
*
* @see spark.components.DataGrid#selectedCells
* @see spark.components.DataGrid#selectedIndices
*
* @langversion 3.0
* @playerversion Flash 10
* @playerversion AIR 2.5
* @productversion Flex 4.5
*/
public static const SELECTION_CHANGING:String = "selectionChanging";
//--------------------------------------------------------------------------
//
// Constructor
//
//--------------------------------------------------------------------------
/**
* Constructor.
*
* @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 kind The kind of changing event. The valid values are defined in
* <code>GridSelectionEventKind</code> class as constants. This value
* determines which properties in the event are used.
*
* @param selectionChange The proposed or accepted change to the
* current selection. Use the Spark DataGrid selection methods to
* determine the current selection.
*
* @see spark.components.DataGrid#selectedCells
* @see spark.components.DataGrid#selectedIndices
* @spark.events.GridSelectionEventKind
*
* @langversion 3.0
* @playerversion Flash 10
* @playerversion AIR 1.5
* @productversion Flex 4
*/
public function GridSelectionEvent(type:String,
bubbles:Boolean = false,
cancelable:Boolean = false,
kind:String = null,
selectionChange:CellRegion = null)
{
super(type, bubbles, cancelable);
this.kind = kind;
this.selectionChange = selectionChange;
}
//--------------------------------------------------------------------------
//
// Properties
//
//--------------------------------------------------------------------------
//----------------------------------
// kind
//----------------------------------
/**
* Indicates the kind of event that occurred.
* The property value can be one of the values in the
* GridSelectionEventKind class,
* or <code>null</code>, which indicates that the kind is unknown.
*
* @see spark.events.GridSelectionEventKind
*
* @langversion 3.0
* @playerversion Flash 10
* @playerversion AIR 2.5
* @productversion Flex 4.5
*/
public var kind:String;
//----------------------------------
// selectionChange
//----------------------------------
/**
* The upcoming or just-completed selection changes triggered by some
* user gesture. If this change is adding to the current selection, it
* will not represent the complete selection. Use the DataGrid
* selection methods to determine the selection.
*
* @see spark.components.DataGrid
*
* @langversion 3.0
* @playerversion Flash 10
* @playerversion AIR 2.5
* @productversion Flex 4.5
*/
public var selectionChange:CellRegion;
//--------------------------------------------------------------------------
//
// Overridden methods: Object
//
//--------------------------------------------------------------------------
/**
* @private
*/
override public function toString():String
{
return formatToString(
"GridSelectionEvent", "type",
"bubbles", "cancelable", "eventPhase",
"kind",
"selectionChange");
}
//--------------------------------------------------------------------------
//
// Overridden methods: Event
//
//--------------------------------------------------------------------------
/**
* @private
*/
override public function clone():Event
{
return new GridSelectionEvent(
type, bubbles, cancelable, kind, selectionChange);
}
}
}