posinset and setsize for input type, radio, exposed in AX tree

third_party/WebKit/Source/modules/accessibility/AXObjectCacheImpl.cpp

 /*
  * Copyright (C) 2014, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 47 matching lines @@
 #include "modules/accessibility/AXInlineTextBox.h"
 #include "modules/accessibility/AXLayoutObject.h"
 #include "modules/accessibility/AXList.h"
 #include "modules/accessibility/AXListBox.h"
 #include "modules/accessibility/AXListBoxOption.h"
 #include "modules/accessibility/AXMediaControls.h"
 #include "modules/accessibility/AXMenuList.h"
 #include "modules/accessibility/AXMenuListOption.h"
 #include "modules/accessibility/AXMenuListPopup.h"
 #include "modules/accessibility/AXProgressIndicator.h"
+#include "modules/accessibility/AXRadioInput.h"
 #include "modules/accessibility/AXSVGRoot.h"
 #include "modules/accessibility/AXSlider.h"
 #include "modules/accessibility/AXSpinButton.h"
 #include "modules/accessibility/AXTable.h"
 #include "modules/accessibility/AXTableCell.h"
 #include "modules/accessibility/AXTableColumn.h"
 #include "modules/accessibility/AXTableHeaderContainer.h"
 #include "modules/accessibility/AXTableRow.h"
 #include "wtf/PassRefPtr.h"
 
@@ skipping 220 matching lines @@
     if (nodeHasRole(node, "gridcell") || nodeHasRole(node, "columnheader") || nodeHasRole(node, "rowheader"))
         return AXARIAGridCell::create(layoutObject, *this);
 
     // media controls
     if (node && node->isMediaControlElement())
         return AccessibilityMediaControl::create(layoutObject, *this);
 
     if (isHTMLOptionElement(node))
         return AXListBoxOption::create(layoutObject, *this);
 
+    if (isHTMLInputElement(node) && toHTMLInputElement(node)->isRadioButton())
+        return AXRadioInput::create(layoutObject, *this);
+
     if (layoutObject->isSVGRoot())
         return AXSVGRoot::create(layoutObject, *this);
 
     if (layoutObject->isBoxModelObject()) {
         LayoutBoxModelObject* cssBox = toLayoutBoxModelObject(layoutObject);
         if (cssBox->isListBox())
             return AXListBox::create(toLayoutListBox(cssBox), *this);
         if (cssBox->isMenuList())
             return AXMenuList::create(toLayoutMenuList(cssBox), *this);
 
@@ skipping 607 matching lines @@
 
 void AXObjectCacheImpl::listboxActiveIndexChanged(HTMLSelectElement* select)
 {
     AXObject* obj = get(select);
     if (!obj || !obj->isAXListBox())
         return;
 
     toAXListBox(obj)->activeIndexChanged();
 }
 
+void AXObjectCacheImpl::radiobuttonRemovedFromGroup(HTMLInputElement* groupMember)
+{
+    AXObject* obj = get(groupMember);
+    if (!obj || !obj->isAXRadioInput())
+        return;
+
+    // The 'posInSet' and 'setSize' attributes should be updated from the first node,
+    // as the removed node is already detached from tree.
+    HTMLInputElement* firstRadio = toAXRadioInput(obj)->findFirstFocusableRadioButtonInGroup(groupMember);
+    AXObject* firstObj = get(firstRadio);
+    if (!firstObj || !firstObj->isAXRadioInput())
+        return;
+
+    toAXRadioInput(firstObj)->updatePosAndSetSize(1);
+    postNotification(firstObj, AXAriaAttributeChanged);
+    toAXRadioInput(firstObj)->requestUpdateToNextNode(true);
+}
+
 void AXObjectCacheImpl::handleLayoutComplete(LayoutObject* layoutObject)
 {
     if (!layoutObject)
         return;
 
     m_modificationCount++;
 
     // Create the AXObject if it didn't yet exist - that's always safe at the end of a layout, and it
     // allows an AX notification to be sent when a page has its first layout, rather than when the
     // document first loads.
@@ skipping 327 matching lines @@
     visitor->trace(m_nodeObjectMapping);
 #endif
 
     visitor->trace(m_objects);
     visitor->trace(m_notificationsToPost);
 
     AXObjectCache::trace(visitor);
 }
 
 } // namespace blink