| 1 | package gov.va.med.edp.util
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| 2 | {
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| 3 | import flash.accessibility.Accessibility;
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| 4 | import flash.accessibility.AccessibilityProperties;
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| 5 | import flash.utils.setTimeout;
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| 6 |
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| 7 | import mx.core.UIComponent;
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| 8 |
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| 9 |
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| 10 | [Bindable]
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| 11 | public class AccessibilityTools
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| 12 | {
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| 13 |
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| 14 | //----------------------------------------------------------------
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| 15 | //
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| 16 | // Class constants
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| 17 | //
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| 18 | //-----------------------------------------------------------------
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| 19 |
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| 20 | private static const ACC_READ_DELAY:int = 2000;
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| 21 |
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| 22 |
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| 23 | /**
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| 24 | * Function: accessComponentName()
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| 25 | * Parameters:
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| 26 | * component:UIComponent - Screen component reference
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| 27 | * accessName:String - Text to be read by JAWS
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| 28 | * Description:
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| 29 | * Generic functionality for reading flex accessible components
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| 30 | * when JAWS accessible feature(508) is used.
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| 31 | * Created by: jtorreno
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| 32 | * Date: 2008.02.08
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| 33 | *
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| 34 | **/
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| 35 | public static function accessComponentName(component:UIComponent,
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| 36 | accessName:String): void
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| 37 | {
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| 38 |
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| 39 | if ((component != null) && (accessName != null)) {
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| 40 | component.accessibilityProperties =
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| 41 | new AccessibilityProperties();
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| 42 | component.accessibilityProperties.name = accessName;
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| 43 |
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| 44 | setTimeout(updateAccessibleProperties, ACC_READ_DELAY);
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| 45 | }
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| 46 |
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| 47 | }
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| 48 |
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| 49 | /**
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| 50 | * Function: updateAccessibleProperties()()
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| 51 | * Parameters:
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| 52 | * NONE
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| 53 | * Description:
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| 54 | * Generic functionality for updating accessible properties
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| 55 | * when JAWS accessible feature(508) is used.
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| 56 | * Created by: jtorreno
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| 57 | * Date: 2008.02.15
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| 58 | *
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| 59 | **/
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| 60 |
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| 61 | private static function updateAccessibleProperties(): void
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| 62 | {
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| 63 | if (Accessibility.active) {
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| 64 | Accessibility.updateProperties();
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| 65 | }
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| 66 | }
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| 67 |
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| 68 | /**
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| 69 | * Function: accessComponentDescription()
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| 70 | * Parameters:
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| 71 | * component:UIComponent - Screen component reference
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| 72 | * accessName:String - Text to be read by JAWS
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| 73 | * Description:
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| 74 | * Generic functionality for reading flex accessible components
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| 75 | * when JAWS accessible feature(508) is used.
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| 76 | * Created by: jtorreno
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| 77 | * Date: 2008.02.08
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| 78 | *
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| 79 | **/
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| 80 | public static function accessComponentDescription(
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| 81 | component:UIComponent, accessName:String): void
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| 82 | {
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| 83 |
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| 84 | if ((component != null) && (accessName != null)) {
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| 85 | component.accessibilityProperties =
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| 86 | new AccessibilityProperties();
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| 87 | component.accessibilityProperties.description = accessName;
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| 88 |
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| 89 | setTimeout(updateAccessibleProperties, ACC_READ_DELAY);
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| 90 | }
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| 91 |
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| 92 | }
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| 93 |
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| 94 | /**
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| 95 | * Function: accessAppViewHeader()
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| 96 | * Parameters:
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| 97 | * component:UIComponent - Screen component reference
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| 98 | * tabIndex:int - Tab index to be read by JAWS
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| 99 | * Description:
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| 100 | * Reads application header when JAWS accessible
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| 101 | * feature(508) is used.
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| 102 | * Created by: jtorreno
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| 103 | * Date: 2008.02.12
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| 104 | *
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| 105 | **/
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| 106 | public static function accessAppViewHeader(component:UIComponent,
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| 107 | tabIndex:int):void
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| 108 | {
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| 109 |
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| 110 | if ((component != null) && (tabIndex >= 0)) {
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| 111 | component.accessibilityProperties =
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| 112 | new AccessibilityProperties();
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| 113 | component.focusEnabled = true;
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| 114 | component.tabIndex = tabIndex;
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| 115 |
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| 116 | setTimeout(updateAccessibleProperties, ACC_READ_DELAY);
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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 | * Function: isAccessibilityToolActive()
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| 123 | * Parameters:
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| 124 | * NONE
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| 125 | * Description:
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| 126 | * Checks if accessibility tool is active.
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| 127 | * Return:
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| 128 | * Returns false if JAWS reader is active
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| 129 | * Created by: jtorreno
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| 130 | * Date: 2008.04.1
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| 131 | *
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| 132 | **/
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| 133 | public static function setToFalseIfAccessToolIsActive():Boolean
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| 134 | {
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| 135 | var bActive:Boolean = true;
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| 136 |
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| 137 | if (isAccessibilityActive()) {
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| 138 | bActive = false;
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| 139 | }
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| 140 | return bActive;
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| 141 | }
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| 142 |
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| 143 | public static function isAccessibilityActive():Boolean
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| 144 | {
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| 145 | // return true;
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| 146 | return Accessibility.active;
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| 147 | }
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| 148 | }
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| 149 | }
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