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| </script><div xmlns:fn="http://www.w3.org/2005/xpath-functions" class="MainContent"><table class="classHeaderTable" cellpadding="0" cellspacing="0"><tr><td class="classHeaderTableLabel">Package</td><td><a href="package-detail.html" onclick="javascript:loadClassListFrame('class-list.html')">spark.accessibility</a></td></tr><tr><td class="classHeaderTableLabel">Class</td><td class="classSignature">public class DropDownListBaseAccImpl</td></tr><tr><td class="classHeaderTableLabel">Inheritance</td><td class="inheritanceList">DropDownListBaseAccImpl <img src="../../images/inherit-arrow.gif" title="Inheritance" alt="Inheritance" class="inheritArrow"> <a href="../../spark/accessibility/ListBaseAccImpl.html">ListBaseAccImpl</a> <img src="../../images/inherit-arrow.gif" title="Inheritance" alt="Inheritance" class="inheritArrow"> <a href="../../mx/accessibility/AccImpl.html">AccImpl</a> <img src="../../images/inherit-arrow.gif" title="Inheritance" alt="Inheritance" class="inheritArrow"> flash.accessibility.AccessibilityImplementation</td></tr><tr><td class="classHeaderTableLabel">Subclasses</td><td> <a href="../../spark/accessibility/ComboBoxAccImpl.html">ComboBoxAccImpl</a></td></tr></table><p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Language Version : </b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Product Version : </b></td><td>Flex 4</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Runtime Versions : </b></td><td>Flash Player 10, AIR 1.5</td></tr></table><p></p><p></p><p></p><p></p> |
| DropDownListAccImpl is the accessibility implementation class |
| for spark.components.supportClasses.DropDownListBase. |
| <p>Although ComboBox has its own accessibility implementation subclass, |
| DropDownList simply uses the one for DropDownListBase. |
| Therefore, the rest of this description refers to |
| the commonly-used DropDownList component rather than the DropDownListBase |
| base class.</p> |
| <p>When a Spark DropDownList is created, |
| its <code>accessibilityImplementation</code> property |
| is set to an instance of this class. |
| The Flash Player then uses this class to allow MSAA clients |
| such as screen readers to see and manipulate the DropDownList. |
| See the mx.accessibility.AccImpl and |
| flash.accessibility.AccessibilityImplementation classes |
| for background information about accessibility implementation |
| classes and MSAA.</p> |
| <p> |
| <b>Children</b> |
| </p> |
| <p>The MSAA children of a DropDownList are its list items. |
| The number of children is the number of items |
| in the <code>dataProvider</code> |
| not just the number of visible renderers.</p> |
| <p>As described below, the accessibility of the list items |
| is managed by the DropDownList; |
| the <code>accessibilityImplementation</code> |
| and <code>accessibilityProperties</code> of the item renderers |
| are ignored by the Flash Player.</p> |
| <p> |
| <b>Role</b> |
| </p> |
| <p>The MSAA Role of a DropDownList is ROLE_SYSTEM_COMBOBOX.</p> |
| <p>The Role of each list item is ROLE_SYSTEM_LISTITEM.</p> |
| <p> |
| <b>Name</b> |
| </p> |
| <p>The MSAA Name of a DropDownList is, by default, an empty string. |
| When wrapped in a FormItem element, the Name is the FormItem's label. |
| To override this behavior, |
| set the DropDownList's <code>accessibilityName</code> property.</p> |
| <p>The Name of each list item is determined by the DropDownList's |
| <code>itemToLabel()</code> method.</p> |
| <p>When the Name of the DropDownList or one of its items changes, |
| a DropDownList dispatches the MSAA event EVENT_OBJECT_NAMECHANGE |
| with the proper childID for a list item or 0 for itself.</p> |
| <p> |
| <b>Description</b> |
| </p> |
| <p>The MSAA Description of a DropDownList is, by default, |
| an empty string, but you can set the DropDownList's |
| <code>accessibilityDescription</code> property.</p> |
| <p>The Description of each list item is the empty string.</p> |
| <p> |
| <b>State</b> |
| </p> |
| <p>The MSAA State of a DropDownList is a combination of: |
| <ul> |
| <li>STATE_SYSTEM_UNAVAILABLE (when enabled is false)</li> |
| <li>STATE_SYSTEM_FOCUSABLE (when enabled is true)</li> |
| <li>STATE_SYSTEM_FOCUSED |
| (when enabled is true and the DropDownList has focus)</li> |
| <li>STATE_SYSTEM_EXPANDED (when it is open)</li> |
| <li>STATE_SYSTEM_COLLAPSED (when it is closed)</li> |
| </ul> |
| </p> |
| <p>The State of a list item is a combination of: |
| <ul> |
| <li>STATE_SYSTEM_FOCUSABLE</li> |
| <li>STATE_SYSTEM_FOCUSED (when it has focus)</li> |
| <li>STATE_SYSTEM_SELECTABLE</li> |
| <li>STATE_SYSTEM_SELECTED (when it is selected)</li> |
| </ul> |
| </p> |
| <p>When the State of the DropDownList or one of its list items changes, |
| a DropDownList dispatches the MSAA event EVENT_OBJECT_STATECHANGE |
| with the proper childID for the list item or 0 for itself.</p> |
| <p> |
| <b>Value</b> |
| </p> |
| <p>The MSAA Value of a DropDownList is the MSAA Name |
| of the currently selected list item.</p> |
| <p>The Value of each list item is the empty string.</p> |
| <p>When the Value of the DropDownList changes, |
| it dispatches the MSAA event EVENT_OBJECT_VALUECHANGE.</p> |
| <p> |
| <b>Location</b> |
| </p> |
| <p>The MSAA Location of a DropDownList or a list item |
| is its bounding rectangle.</p> |
| <p> |
| <b>Default Action</b> |
| </p> |
| <p>A DropDownList does not have an MSAA DefaultAction</p> |
| |
| <p>The DefaultAction of a list item is "Double click".</p> |
| <p> |
| <b>Focus</b> |
| </p> |
| <p>The DropDownList itself can receive focus, as well as its list items |
| (either while the DropDownList is collapsed or expanded). |
| The EVENT_OBJECT_FOCUS is fired when this happens.</p> |
| <p> |
| <b>Selection</b> |
| </p> |
| <p>The DropDownList allows a single item to be selected, |
| in which case an EVENT_OBJECT_SELECTION event is fired.</p> |
| <p></p><br/><hr></div><a name="protectedPropertySummary"></a><div class="summarySection"><div class="summaryTableTitle">Protected Properties</div><div class="showHideLinks"><div id="hideInheritedProtectedProperty" class="hideInheritedProtectedProperty"><a class="showHideLink" href="#protectedPropertySummary" onclick="javascript:setInheritedVisible(false,'ProtectedProperty');"><img class="showHideLinkImage" src="../../images/expanded.gif"> Hide Inherited Protected Properties</a></div><div id="showInheritedProtectedProperty" class="showInheritedProtectedProperty"><a class="showHideLink" href="#protectedPropertySummary" onclick="javascript:setInheritedVisible(true,'ProtectedProperty');"><img class="showHideLinkImage" src="../../images/collapsed.gif"> Show Inherited Protected Properties</a></div></div><table cellspacing="0" cellpadding="3" class="summaryTable hideInheritedProtectedProperty" id="summaryTableProtectedProperty"><tr><th> </th><th colspan="2">Property</th><th class="summaryTableOwnerCol">Defined By</th></tr><tr class="hideInheritedProtectedProperty"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/accessibility/AccImpl.html#eventsToHandle" class="signatureLink">eventsToHandle</a> : Array<div class="summaryTableDescription">[read-only] |
| All subclasses must override this function by returning an array |
| of strings of the events to listen for.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/accessibility/AccImpl.html">AccImpl</a></td></tr><tr class="hideInheritedProtectedProperty"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/accessibility/AccImpl.html#master" class="signatureLink">master</a> : <a href="../../mx/core/UIComponent.html">UIComponent</a><div class="summaryTableDescription"> |
| A reference to the UIComponent instance that this AccImpl instance |
| is making accessible.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/accessibility/AccImpl.html">AccImpl</a></td></tr><tr class="hideInheritedProtectedProperty"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/accessibility/AccImpl.html#role" class="signatureLink">role</a> : uint<div class="summaryTableDescription"> |
| Accessibility role of the component being made accessible.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/accessibility/AccImpl.html">AccImpl</a></td></tr></table></div><a name="methodSummary"></a><div class="summarySection"><div class="summaryTableTitle">Public Methods </div><div class="showHideLinks"><div id="hideInheritedMethod" class="hideInheritedMethod"><a class="showHideLink" href="#methodSummary" onclick="javascript:setInheritedVisible(false,'Method');"><img class="showHideLinkImage" src="../../images/expanded.gif"> Hide Inherited Public Methods</a></div><div id="showInheritedMethod" class="showInheritedMethod"><a class="showHideLink" href="#methodSummary" onclick="javascript:setInheritedVisible(true,'Method');"><img class="showHideLinkImage" src="../../images/collapsed.gif"> Show Inherited Public Methods</a></div></div><table cellspacing="0" cellpadding="3" class="summaryTable " id="summaryTableMethod"><tr><th> </th><th colspan="2">Method</th><th class="summaryTableOwnerCol">Defined By</th></tr><tr class=""><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"> </td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="#DropDownListBaseAccImpl()" class="signatureLink">DropDownListBaseAccImpl</a>(master:<a href="../../mx/core/UIComponent.html">UIComponent</a>)</div><div class="summaryTableDescription"> |
| Constructor.</div></td><td class="summaryTableOwnerCol">DropDownListBaseAccImpl</td></tr><tr class=""><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"> </td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="#enableAccessibility()" class="signatureLink">enableAccessibility</a>():void</div><div class="summaryTableDescription">[static] |
| Enables accessibility in the DropDownListBase class.</div></td><td class="summaryTableOwnerCol">DropDownListBaseAccImpl</td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/accessibility/AccImpl.html#getFormName()" class="signatureLink">getFormName</a>(component:<a href="../../mx/core/UIComponent.html">UIComponent</a>):String</div><div class="summaryTableDescription">[static] |
| Method for supporting Form Accessibility.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/accessibility/AccImpl.html">AccImpl</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/accessibility/AccImpl.html#isAncestorDisabled()" class="signatureLink">isAncestorDisabled</a>(component:<a href="../../mx/core/UIComponent.html">UIComponent</a>):Boolean</div><div class="summaryTableDescription">[static] |
| Returns true if an ancestor of the component has enabled set to false.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/accessibility/AccImpl.html">AccImpl</a></td></tr></table></div><a name="protectedMethodSummary"></a><div class="summarySection"><div class="summaryTableTitle">Protected Methods </div><div class="showHideLinks"><div id="hideInheritedProtectedMethod" class="hideInheritedProtectedMethod"><a class="showHideLink" href="#protectedMethodSummary" onclick="javascript:setInheritedVisible(false,'ProtectedMethod');"><img class="showHideLinkImage" src="../../images/expanded.gif"> Show Inherited Protected Methods</a></div><div id="showInheritedProtectedMethod" class="showInheritedProtectedMethod"><a class="showHideLink" href="#protectedMethodSummary" onclick="javascript:setInheritedVisible(true,'ProtectedMethod');"><img class="showHideLinkImage" src="../../images/collapsed.gif"> Show Inherited Protected Methods</a></div></div><table cellspacing="0" cellpadding="3" class="summaryTable hideInheritedProtectedMethod" id="summaryTableProtectedMethod"><tr><th> </th><th colspan="2">Method</th><th class="summaryTableOwnerCol">Defined By</th></tr><tr class="hideInheritedProtectedMethod"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/accessibility/AccImpl.html#eventHandler()" class="signatureLink">eventHandler</a>(event:Event):void</div><div class="summaryTableDescription"> |
| Generic event handler.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/accessibility/AccImpl.html">AccImpl</a></td></tr><tr class="hideInheritedProtectedMethod"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/accessibility/AccImpl.html#getName()" class="signatureLink">getName</a>(childID:uint):String</div><div class="summaryTableDescription"> |
| Returns the name of the accessible component.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/accessibility/AccImpl.html">AccImpl</a></td></tr><tr class="hideInheritedProtectedMethod"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/accessibility/AccImpl.html#getState()" class="signatureLink">getState</a>(childID:uint):uint</div><div class="summaryTableDescription"> |
| Utility method to determine state of the accessible component.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/accessibility/AccImpl.html">AccImpl</a></td></tr></table></div><script language="javascript" type="text/javascript"><!-- |
| showHideInherited(); |
| --></script><div class="MainContent"><a name="constructorDetail"></a><div class="detailSectionHeader">Constructor Detail</div><a name="DropDownListBaseAccImpl()"></a><a name="DropDownListBaseAccImpl(mx.core.UIComponent)"></a><table class="detailHeader" cellpadding="0" cellspacing="0"><tr><td class="detailHeaderName">DropDownListBaseAccImpl</td><td class="detailHeaderParens">()</td><td class="detailHeaderType">Constructor</td></tr></table><div class="detailBody"><code>public function DropDownListBaseAccImpl(master:<a href="../../mx/core/UIComponent.html">UIComponent</a>)</code><p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Language Version : </b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Product Version : </b></td><td>Flex 4</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Runtime Versions : </b></td><td>Flash Player 10, AIR 1.5</td></tr></table><p></p><p> |
| Constructor. |
| </p><span class="label"> Parameters </span><table cellpadding="0" cellspacing="0" border="0"><tr><td width="20px"></td><td><code><span class="label">master</span>:<a href="../../mx/core/UIComponent.html">UIComponent</a></code> — The UIComponent instance that this AccImpl instance |
| is making accessible. |
| </td></tr></table></div><a name="methodDetail"></a><div class="detailSectionHeader">Method Detail</div><a name="enableAccessibility()"></a><table class="detailHeader" cellpadding="0" cellspacing="0"><tr><td class="detailHeaderName">enableAccessibility</td><td class="detailHeaderParens">()</td><td class="detailHeaderType">method</td></tr></table><div class="detailBody"><code> public static function enableAccessibility():void</code><p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Language Version : </b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Product Version : </b></td><td>Flex 4</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Runtime Versions : </b></td><td>Flash Player 10, AIR 1.5</td></tr></table><p></p><p></p><p> |
| Enables accessibility in the DropDownListBase class. |
| <p>This method is called by application startup code |
| that is autogenerated by the MXML compiler. |
| Afterwards, when instances of DropDownListBase are initialized, |
| their <code>accessibilityImplementation</code> property |
| will be set to an instance of this class.</p> |
| </p></div><br/><br/><hr><br/><p></p><center class="copyright"><footer>The Apache Software Foundation</footer><br/>Wed Nov 15 2017, 09:50 AM +01:00 </center></div></body></html><!--The Apache Software Foundation<br/>Wed Nov 15 2017, 09:50 AM +01:00 --> |
