[1240] | 1 | package gov.va.med.edp.widget.accessibility
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| 2 | {
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| 3 | import mx.accessibility.AccImpl;
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| 4 | import mx.controls.Label;
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| 5 | import flash.events.Event;
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| 6 | import flash.accessibility.Accessibility;
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| 7 | import flash.accessibility.AccessibilityProperties;
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| 8 | import mx.core.UIComponent;
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| 9 |
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| 10 | /**
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| 11 | * The AccessibleLabelAccImpl class is the accessibility class for
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| 12 | * Accessible label component.
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| 13 | *
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| 14 | * @tiptext This is the AccessibleLabelAccImpl Accessibility Class.
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| 15 | */
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| 16 | public class AccessibleLabelAccImpl extends AccImpl
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| 17 | {
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| 18 | /**
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| 19 | * @private
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| 20 | */
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| 21 | private static const EVENT_OBJECT_NAMECHANGE:uint = 0x800C;
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| 22 |
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| 23 | /**
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| 24 | * @private
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| 25 | */
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| 26 | private const ROLE_SYSTEM_STATICTEXT:uint = 0x29;
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| 27 |
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| 28 | /**
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| 29 | * @private
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| 30 | * Default Role of label component.
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| 31 | */
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| 32 | private const ROLE_SYSTEM_TEXT:uint = 0x0000002A;
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| 33 |
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| 34 | /**
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| 35 | * Constructor
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| 36 | */
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| 37 | public function AccessibleLabelAccImpl(master:UIComponent)
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| 38 | {
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| 39 | super(master);
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| 40 | }
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| 41 |
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| 42 | /**
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| 43 | * Method call for enabling accessibility for a component.
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| 44 | * this method is required for the compiler to activate
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| 45 | * the accessibility classes for a component.
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| 46 | */
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| 47 | public static function enableAccessibility():void
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| 48 | {
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| 49 | }
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| 50 |
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| 51 | /**
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| 52 | * @private
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| 53 | * method for returning the name of the accessible label
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| 54 | *
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| 55 | * @param childID uint
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| 56 | *
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| 57 | * @return Name String
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| 58 | * @review
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| 59 | */
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| 60 | override protected function getName(childID:uint):String
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| 61 | {
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| 62 | var label:String = IAccessibleComponent(master).accessibleText;
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| 63 | return label != null && label != "" ? label : "";
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| 64 | }
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| 65 |
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| 66 | /**
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| 67 | * @private
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| 68 | * Method for returning the state of the accessible label
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| 69 | *
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| 70 | * @param childID uint
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| 71 | *
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| 72 | * @return State uint
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| 73 | */
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| 74 | override public function get_accState(childID:uint):uint
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| 75 | {
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| 76 | var accState:uint = getState(childID);
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| 77 |
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| 78 | return accState;
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| 79 | }
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| 80 |
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| 81 | /**
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| 82 | * @private
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| 83 | * Gets the role for the component.
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| 84 | *
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| 85 | * @param childID uint.
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| 86 | */
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| 87 | override public function get_accRole(childID:uint):uint
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| 88 | {
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| 89 | return ROLE_SYSTEM_TEXT ;
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| 90 | }
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| 91 |
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| 92 | /**
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| 93 | * @private
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| 94 | * Array of events that we should listen for from the master component.
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| 95 | */
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| 96 | override protected function get eventsToHandle():Array
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| 97 | {
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| 98 | return super.eventsToHandle.concat(["labelChanged"]);
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| 99 | }
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| 100 |
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| 101 | /**
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| 102 | * @private
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| 103 | * Override the generic event handler.
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| 104 | * All AccImpl must implement this to listen for events
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| 105 | * from its master component.
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| 106 | */
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| 107 | override protected function eventHandler(event:Event):void
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| 108 | {
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| 109 | switch (event.type)
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| 110 | {
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| 111 | /* tell JAWS to update and reread the information */
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| 112 | case "accessibleTextChanged":
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| 113 | {
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| 114 | Accessibility.sendEvent(master, 0, EVENT_OBJECT_NAMECHANGE);
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| 115 | Accessibility.updateProperties();
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| 116 | break;
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| 117 | }
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| 118 | }
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| 119 | }
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| 120 |
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| 121 |
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| 122 | }
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| 123 | }
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