| //////////////////////////////////////////////////////////////////////////////// |
| // |
| // 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.accessibility |
| { |
| |
| import flash.accessibility.Accessibility; |
| import flash.events.Event; |
| import flash.events.MouseEvent; |
| import mx.accessibility.AccConst; |
| import mx.containers.Panel; |
| import mx.containers.TitleWindow; |
| import mx.core.UIComponent; |
| import mx.core.mx_internal; |
| |
| use namespace mx_internal; |
| |
| /** |
| * TitleWindowAccImpl is a subclass of AccessibilityImplementation |
| * which implements accessibility for the TitleWindow class. |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 9 |
| * @playerversion AIR 1.1 |
| * @productversion Flex 3 |
| */ |
| public class TitleWindowAccImpl extends PanelAccImpl |
| { |
| include "../core/Version.as"; |
| |
| //-------------------------------------------------------------------------- |
| // |
| // Class methods |
| // |
| //-------------------------------------------------------------------------- |
| |
| /** |
| * Enables accessibility in the TitleWindow class. |
| * |
| * <p>This method is called by application startup code |
| * that is autogenerated by the MXML compiler. |
| * Afterwards, when instances of TitleWindow are initialized, |
| * their <code>accessibilityImplementation</code> property |
| * will be set to an instance of this class.</p> |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 9 |
| * @playerversion AIR 1.1 |
| * @productversion Flex 3 |
| */ |
| public static function enableAccessibility():void |
| { |
| TitleWindow.createAccessibilityImplementation = |
| createAccessibilityImplementation; |
| } |
| |
| /** |
| * @private |
| * Creates a TitleWindow's AccessibilityImplementation object. |
| * This method is called from UIComponent's |
| * initializeAccessibility() method. |
| */ |
| mx_internal static function createAccessibilityImplementation( |
| component:UIComponent):void |
| { |
| // The AccessibilityImplementation is placed on the |
| // TitleWindow's titleBar, not on the TitleWindow itself. |
| // If it were placed on the TitleWindow itself, |
| // the AccessibilityImplementations of the TitleWindow's children |
| // would be ignored. |
| var titleBar:UIComponent = TitleWindow(component).getTitleBar(); |
| titleBar.accessibilityImplementation = |
| new TitleWindowAccImpl(component); |
| |
| Accessibility.sendEvent(titleBar, 0, AccConst.EVENT_OBJECT_CREATE); |
| Accessibility.updateProperties(); |
| } |
| |
| //-------------------------------------------------------------------------- |
| // |
| // Constructor |
| // |
| //-------------------------------------------------------------------------- |
| |
| /** |
| * Constructor. |
| * |
| * @param master The UIComponent instance that this AccImpl instance |
| * is making accessible. |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 9 |
| * @playerversion AIR 1.1 |
| * @productversion Flex 3 |
| */ |
| public function TitleWindowAccImpl(master:UIComponent) |
| { |
| super(master); |
| |
| // Typecasting as Panel and not TitleWindow since AlertAccImpl |
| // also extends from this but Alert is not a subclass of TitleWindow |
| // but is of Panel. |
| |
| Panel(master).getTitleBar().addEventListener(MouseEvent.MOUSE_UP, |
| eventHandler); |
| |
| Panel(master).closeButton.addEventListener(MouseEvent.MOUSE_UP, |
| eventHandler); |
| } |
| |
| //-------------------------------------------------------------------------- |
| // |
| // Overridden methods: AccessibilityImplementation |
| // |
| //-------------------------------------------------------------------------- |
| |
| /** |
| * @private |
| * IAccessible method for returning the state of the TitleWindow. |
| * States are predefined for all the components in MSAA. |
| * Values are assigned to each state. |
| * Depending upon the TitleWindow being Focusable, Focused and Moveable, |
| * a value is returned. |
| * |
| * @param childID:uint |
| * |
| * @return State:uint |
| */ |
| override public function get_accState(childID:uint):uint |
| { |
| var accState:uint = getState(childID); |
| |
| accState |= AccConst.STATE_SYSTEM_MOVEABLE; |
| |
| return accState; |
| } |
| |
| //-------------------------------------------------------------------------- |
| // |
| // Overridden event handlers: AccImpl |
| // |
| //-------------------------------------------------------------------------- |
| |
| /** |
| * @private |
| * Override the generic event handler. |
| * All AccImpl must implement this |
| * to listen for events from its master component. |
| */ |
| override protected function eventHandler(event:Event):void |
| { |
| // Let AccImpl class handle the events |
| // that all accessible UIComponents understand. |
| $eventHandler(event); |
| |
| switch (event.type) |
| { |
| case MouseEvent.MOUSE_UP: |
| { |
| if (event.target == Panel(master).getTitleBar()) |
| { |
| Accessibility.sendEvent(Panel(master).getTitleBar(), 0, |
| AccConst.EVENT_OBJECT_LOCATIONCHANGE, true); |
| } |
| |
| if (event.target == Panel(master).closeButton) |
| { |
| Accessibility.sendEvent(Panel(master).getTitleBar(), 0, |
| AccConst.EVENT_OBJECT_DESTROY, true); |
| } |
| |
| Accessibility.updateProperties(); |
| break; |
| } |
| } |
| } |
| } |
| |
| } |