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Adrien MALINGREY
2020-10-20 00:58:15 +02:00
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com/yahoo/astra/fl/controls/mediaPlayerClasses/PlayPauseToggleButton.as Executable file
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/*
Copyright (c) 2009 Yahoo! Inc. All rights reserved.
The copyrights embodied in the content of this file are licensed under the BSD (revised) open source license
*/
package com.yahoo.astra.fl.controls.mediaPlayerClasses
{
import com.yahoo.astra.fl.events.MediaEvent;
import fl.events.ComponentEvent;
import flash.accessibility.Accessibility;
import flash.accessibility.AccessibilityProperties;
import flash.display.DisplayObjectContainer;
//--------------------------------------
// Class Description
//--------------------------------------
/**
* PlayPauseToggleButton extends MediaView and creates an IconButton to toggle
* the playing state of a media clip.
*
* @see com.yahoo.astra.fl.controls.mediaPlayerClasses.MediaView
* @see com.yahoo.astra.fl.controls.mediaPlayerClasses.IconButton
*
* @langversion 3.0
* @playerversion Flash 9.0.28.0
*/
public class PlayPauseToggleButton extends MediaView
{
//--------------------------------------
// Constructor
//--------------------------------------
/**
* Constructor
* @param container display object container that the PlayPauseToggleButton will be added to
* @param model media clip that the PlayPauseToggleButton will observe
* @param controller media controller that will handle user input from the PlayPauseToggleButton
*/
public function PlayPauseToggleButton(container:DisplayObjectContainer, model:IMediaClip, controller:MediaController)
{
super(container, model, controller);
_button = new IconButton();
_button.width = width;
_button.height = height;
_button.accessibilityProperties = getCurrentAccessibilityProperties();
addChild(_button);
setChildStyles(_button, getStyleDefinition());
_button.addEventListener(ComponentEvent.BUTTON_DOWN, dispatchToggleChange);
}
//--------------------------------------
// Properties
//--------------------------------------
/**
* @private (protected)
*/
protected var _button:IconButton;
/**
* Gets or sets the vertical padding of the button
*/
public function get verticalPadding():Number
{
return _button.verticalPadding;
}
/**
* @private (setter)
*/
public function set verticalPadding(value:Number):void
{
_button.verticalPadding = value;
}
/**
* Gets or set the amount of horizontal space between the icon and the sides of the button
*/
public function get horizontalPadding():Number
{
return _button.horizontalPadding;
}
/**
* @private (setter)
*/
public function set horizontalPadding(value:Number):void
{
_button.horizontalPadding = value;
}
/**
* @private
*
* @langversion 3.0
* @playerversion Flash 9.0.28.0
*/
private static var defaultStyles:Object = {
icon:null,
upIcon:"play_upIcon",
downIcon:"play_downIcon",
overIcon:"play_overIcon",
disabledIcon:null,
selectedDisabledIcon:null,
selectedUpIcon:"pause_upIcon",
selectedDownIcon:"pause_downIcon",
selectedOverIcon:"pause_overIcon",
textFormat:null,
disabledTextFormat:null,
textPadding:5,
embedFonts:false
};
/**
* @private (protected)
*/
override public function set height(value:Number):void
{
super.height = _button.height = value;
invalidate();
}
/**
* @private (protected)
*/
override public function set width(value:Number):void
{
super.width = _button.width = value;
invalidate();
}
//--------------------------------------
// Public Methods
//--------------------------------------
/**
* Gets the styles for the component
* @return Object created from defaultStyle and the BaseButton styles.
*/
public static function getStyleDefinition():Object
{
//return mergeStyles(defaultStyles, BaseButton.getStyleDefinition());
return defaultStyles;
}
//--------------------------------------
// Protected Methods
//--------------------------------------
/**
* @private (protected)
*
* @langversion 3.0
* @playerversion Flash 9.0.28.0
*/
override protected function addListeners():void
{
//add listeners to the _model
_model.addEventListener(MediaEvent.MEDIA_PLAY_PAUSE, toggleState);
}
/**
* @private (protected)
*
* @langversion 3.0
* @playerversion Flash 9.0.28.0
*/
override protected function removeListeners():void
{
//remove listeners from the _model
_model.removeEventListener(MediaEvent.MEDIA_PLAY_PAUSE, toggleState);
}
/**
* @private (protected)
*
* @langversion 3.0
* @playerversion Flash 9.0.28.0
*/
protected function dispatchToggleChange(event:ComponentEvent):void
{
//pass the selected value to the _controller's togglePlayPause function
_controller.setPause(_button.selected);
//TODO: Accessibility.active check and 2 sec timeout
setAccessibilityProperties();
invalidate();
}
/**
* @private (protected)
*
* @langversion 3.0
* @playerversion Flash 9.0.28.0
*/
protected function toggleState(event:MediaEvent):void
{
//sets the _selected property of _button based on the state of the media
_button.selected = event.target.playing;
}
/**
* @private
*
* Get the accessibility properties depending on the button state
*/
protected function getCurrentAccessibilityProperties():AccessibilityProperties
{
var accProps= new AccessibilityProperties();
accProps.name = _button.selected? "Pause" :"Play";
accProps.description = _button.selected? "Click to Pause" :"Click to Play";
return accProps;
}
/**
* @private
*
* Set the accessibility properties depending on the button state
*/
protected function setAccessibilityProperties():void
{
if(Accessibility.active)
{
_button.accessibilityProperties = getCurrentAccessibilityProperties();
Accessibility.updateProperties();
}
}
}
}