| //////////////////////////////////////////////////////////////////////////////// |
| // |
| // 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 mx.accessibility.AccConst; |
| import mx.controls.DateField; |
| import mx.core.UIComponent; |
| import mx.core.mx_internal; |
| |
| use namespace mx_internal; |
| |
| /** |
| * DateFieldAccImpl is a subclass of AccessibilityImplementation |
| * which implements accessibility for the DateField class. |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 9 |
| * @playerversion AIR 1.1 |
| * @productversion Flex 3 |
| */ |
| public class DateFieldAccImpl extends AccImpl |
| { |
| include "../core/Version.as"; |
| |
| //-------------------------------------------------------------------------- |
| // |
| // Class methods |
| // |
| //-------------------------------------------------------------------------- |
| |
| /** |
| * Enables accessibility in the DateField class. |
| * |
| * <p>This method is called by application startup code |
| * that is autogenerated by the MXML compiler. |
| * Afterwards, when instances of DateField 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 |
| { |
| DateField.createAccessibilityImplementation = |
| createAccessibilityImplementation; |
| |
| DateChooserAccImpl.enableAccessibility(); |
| } |
| |
| /** |
| * @private |
| * Creates a DateField's AccessibilityImplementation object. |
| * This method is called from UIComponent's |
| * initializeAccessibility() method. |
| */ |
| mx_internal static function createAccessibilityImplementation( |
| component:UIComponent):void |
| { |
| component.accessibilityImplementation = |
| new DateFieldAccImpl(component); |
| } |
| |
| //-------------------------------------------------------------------------- |
| // |
| // 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 DateFieldAccImpl(master:UIComponent) |
| { |
| super(master); |
| |
| role = AccConst.ROLE_SYSTEM_COMBOBOX; |
| } |
| |
| //-------------------------------------------------------------------------- |
| // |
| // Variables |
| // |
| //-------------------------------------------------------------------------- |
| |
| /** |
| * @private |
| */ |
| private var instructionsFlag:Boolean = false; |
| |
| //-------------------------------------------------------------------------- |
| // |
| // Overridden properties: AccImpl |
| // |
| //-------------------------------------------------------------------------- |
| |
| //---------------------------------- |
| // eventsToHandle |
| //---------------------------------- |
| |
| /** |
| * @private |
| * Array of events that we should listen for from the master component. |
| */ |
| override protected function get eventsToHandle():Array |
| { |
| return super.eventsToHandle.concat([ "change", "focusIn", "focusOut", "open", "close" ]); |
| } |
| |
| //-------------------------------------------------------------------------- |
| // |
| // Overridden methods: AccessibilityImplementation |
| // |
| //-------------------------------------------------------------------------- |
| |
| /** |
| * @private |
| * IAccessible method for returning the state of the DateField. |
| * States are predefined for all the components in MSAA. |
| * |
| * @param childID uint |
| * |
| * @return State uint |
| */ |
| override public function get_accState(childID:uint):uint |
| { |
| return getState(childID); |
| } |
| |
| //-------------------------------------------------------------------------- |
| // |
| // Overridden methods: AccImpl |
| // |
| //-------------------------------------------------------------------------- |
| |
| /** |
| * @private |
| * method for returning the name of the DateField |
| * should return the selected date with weekday, month and year. |
| * |
| * @param childID uint |
| * |
| * @return Name String |
| */ |
| override protected function getName(childID:uint):String |
| { |
| var name:String = "Drop Down Calendar, "; |
| |
| var dateField:DateField = DateField(master); |
| |
| if (dateField.displayedMonth && !isNaN(dateField.displayedYear)) |
| { |
| name += dateField.monthNames[dateField.displayedMonth] + " " + |
| dateField.displayedYear; |
| } |
| |
| var instrString:String = ", to open press control down"; |
| |
| var selDate:Date = dateField.selectedDate; |
| if (selDate) |
| { |
| var tDate:String = "" + selDate.getDate() + " " + |
| dateField.monthNames[selDate.getMonth()] + " " + |
| selDate.getFullYear(); |
| |
| name = "Drop Down Calendar, " + tDate; |
| } |
| |
| if (instructionsFlag) |
| name += instrString; |
| |
| return name; |
| } |
| |
| //-------------------------------------------------------------------------- |
| // |
| // 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 "change": |
| { |
| var childID:uint = 289; // not sure where 289 number has come from |
| |
| var dateField:DateField = DateField(master); |
| |
| // need to check != null for Date |
| if (dateField.selectedDate != null) |
| childID += dateField.selectedDate.getDate(); |
| |
| Accessibility.sendEvent(master, childID, AccConst.EVENT_OBJECT_FOCUS); |
| Accessibility.sendEvent(master, childID, AccConst.EVENT_OBJECT_SELECTION); |
| break; |
| } |
| |
| case "close": |
| case "focusIn": |
| { |
| instructionsFlag = true; |
| break; |
| } |
| |
| case "open": |
| case "focusOut": |
| { |
| instructionsFlag = false; |
| break; |
| } |
| } |
| } |
| } |
| |
| } |