tree db80921109697254f090daefffd341bd1282de7b
parent 9ba8b976d7a8f633301f95d1d3e3155de423f7d9
author cfleizach@apple.com <cfleizach@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1606870504 +0000
committer cfleizach@apple.com <cfleizach@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1606870504 +0000

AX: VoiceOver does not announce the  aria-checked state for ARIA treeitem
https://bugs.webkit.org/show_bug.cgi?id=218316
<rdar://problem/70787809>

Reviewed by Zalan Bujtas.

Source/WebCore:

Tree items need to be able to support their aria-checked status according to WAI-ARIA.
In addition, when the value changes they need to be able to post an appropriate notification.
While working on this, I realized that if an attribute changes, the notification is not fired until the next layout change
which is problematic. Those need to fire immediately.

Test: accessibility/mac/checked-status-tree-items.html
      accessibility/ios-simulator/checked-status-tree-items.html

* accessibility/AXObjectCache.cpp:
(WebCore::AXObjectCache::deferAttributeChangeIfNeeded):
* accessibility/AccessibilityNodeObject.cpp:
(WebCore::AccessibilityNodeObject::isChecked const):
* accessibility/AccessibilityObject.cpp:
(WebCore::AccessibilityObject::supportsCheckedState const):
* accessibility/AccessibilityObject.h:
* accessibility/AccessibilityObjectInterface.h:
* accessibility/AccessibilityTreeItem.cpp:
(WebCore::AccessibilityTreeItem::supportsCheckedState const):
* accessibility/AccessibilityTreeItem.h:
* accessibility/ios/AXObjectCacheIOS.mm:
(WebCore::AXObjectCache::postPlatformNotification):
* accessibility/ios/WebAccessibilityObjectWrapperIOS.mm:
(-[WebAccessibilityObjectWrapper accessibilityTraits]):
(-[WebAccessibilityObjectWrapper accessibilityValue]):
* accessibility/isolatedtree/AXIsolatedObject.cpp:
(WebCore::AXIsolatedObject::initializeAttributeData):
* accessibility/isolatedtree/AXIsolatedObject.h:
* accessibility/isolatedtree/AXIsolatedTree.h:
* accessibility/mac/WebAccessibilityObjectWrapperMac.mm:
(AXAttributedStringAppendText):
(-[WebAccessibilityObjectWrapper ALLOW_DEPRECATED_IMPLEMENTATIONS_END]):
(-[WebAccessibilityObjectWrapper accessibilityAttributeValue:]):

LayoutTests:

* accessibility/ios-simulator/checked-status-tree-items-expected.txt: Added.
* accessibility/ios-simulator/checked-status-tree-items.html: Added.
* accessibility/mac/checked-status-tree-items-expected.txt: Added.
* accessibility/mac/checked-status-tree-items.html: Added.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@270333 268f45cc-cd09-0410-ab3c-d52691b4dbfc