Attachment #158622 for bug #91794

View Details Raw Unified Return to Bug 91794

| Differences between



2012-08-15  Dominic Mazzoni  <dmazzoni@google.com>

        AX: Calls to AXObjectCache should prefer Node over Renderer
        https://bugs.webkit.org/show_bug.cgi?id=91794

        Reviewed by NOBODY (OOPS!).

        Now that it's possible for nodes inside a canvas subtree to be focused and
        represent accessible content, accessibility notifications should be triggered
        with a Node* rather than with a RenderObject* whenever possible.

        Every public API in AXObjectCache that took a RenderObject* before now either
        takes a Node* instead, or has a parallel method that takes a Node*.

        Tests: accessibility/accessibility-node-memory-management.html
               accessibility/accessibility-node-reparent.html
               accessibility/canvas-fallback-content.html

        * accessibility/AXObjectCache.cpp:
        (WebCore::AXObjectCache::focusedImageMapUIElement):
        (WebCore::AXObjectCache::focusedUIElementForPage):
        (WebCore::AXObjectCache::get):
        (WebCore::AXObjectCache::getOrCreate):
        (WebCore::AXObjectCache::contentChanged):
        (WebCore):
        (WebCore::AXObjectCache::updateCacheAfterNodeIsAttached):
        (WebCore::AXObjectCache::childrenChanged):
        (WebCore::AXObjectCache::postNotification):
        (WebCore::AXObjectCache::checkedStateChanged):
        (WebCore::AXObjectCache::selectedChildrenChanged):
        (WebCore::AXObjectCache::nodeTextChangeNotification):
        (WebCore::AXObjectCache::handleAriaExpandedChange):
        (WebCore::AXObjectCache::handleActiveDescendantChanged):
        (WebCore::AXObjectCache::handleAriaRoleChanged):
        (WebCore::AXObjectCache::textMarkerDataForVisiblePosition):
        (WebCore::AXObjectCache::rootAXEditableElement):
        (WebCore::AXObjectCache::nodeIsTextControl):
        * accessibility/AXObjectCache.h:
        (AXObjectCache):
        (WebCore::AXObjectCache::setNodeInUse):
        (WebCore::AXObjectCache::removeNodeForUse):
        (WebCore::AXObjectCache::isNodeInUse):
        (WebCore::AXObjectCache::checkedStateChanged):
        (WebCore::AXObjectCache::childrenChanged):
        (WebCore::AXObjectCache::contentChanged):
        (WebCore::AXObjectCache::updateCacheAfterNodeIsAttached):
        (WebCore::AXObjectCache::handleActiveDescendantChanged):
        (WebCore::AXObjectCache::handleAriaExpandedChange):
        (WebCore::AXObjectCache::handleAriaRoleChanged):
        (WebCore::AXObjectCache::handleFocusedUIElementChanged):
        (WebCore::AXObjectCache::nodeTextChangeNotification):
        (WebCore::AXObjectCache::postNotification):
        (WebCore::AXObjectCache::selectedChildrenChanged):
        * accessibility/AccessibilityListBoxOption.cpp:
        (WebCore::AccessibilityListBoxOption::parentObject):
        * accessibility/AccessibilityObject.cpp:
        (WebCore::appendAccessibilityObject):
        (WebCore::replacedNodeNeedsCharacter):
        * accessibility/AccessibilityRenderObject.cpp:
        (WebCore::AccessibilityRenderObject::menuForMenuButton):
        (WebCore::AccessibilityRenderObject::menuButtonForMenu):
        (WebCore::AccessibilityRenderObject::checkboxOrRadioRect):
        (WebCore::AccessibilityRenderObject::addRadioButtonGroupMembers):
        (WebCore::AccessibilityRenderObject::titleUIElement):
        (WebCore::AccessibilityRenderObject::isTabItemSelected):
        (WebCore::AccessibilityRenderObject::accessibilityParentForImageMap):
        (WebCore::AccessibilityRenderObject::nodeIsTextControl):
        (WebCore::AccessibilityRenderObject::activeDescendant):
        (WebCore::AccessibilityRenderObject::correspondingControlForLabelElement):
        (WebCore::AccessibilityRenderObject::correspondingLabelForControlElement):
        * accessibility/AccessibilityRenderObject.h:
        (AccessibilityRenderObject):
        * accessibility/AccessibilityScrollView.cpp:
        (WebCore::AccessibilityScrollView::webAreaObject):
        (WebCore::AccessibilityScrollView::parentObject):
        (WebCore::AccessibilityScrollView::parentObjectIfExists):
        * accessibility/chromium/AXObjectCacheChromium.cpp:
        (WebCore::AXObjectCache::postPlatformNotification):
        (WebCore::AXObjectCache::handleFocusedUIElementChanged):
        * accessibility/gtk/AXObjectCacheAtk.cpp:
        (WebCore::AXObjectCache::handleFocusedUIElementChanged):
        * accessibility/mac/AXObjectCacheMac.mm:
        (WebCore::AXObjectCache::handleFocusedUIElementChanged):
        * accessibility/win/AXObjectCacheWin.cpp:
        (WebCore::AXObjectCache::handleFocusedUIElementChanged):
        * bindings/cpp/WebDOMCustomVoidCallback.cpp:
        (toWebCore):
        * dom/Document.cpp:
        (WebCore::Document::setFocusedNode):
        * dom/Element.cpp:
        (WebCore::Element::attributeChanged):
        * dom/Node.cpp:
        (WebCore::Node::~Node):
        (WebCore::Node::attach):
        * editing/AppendNodeCommand.cpp:
        (WebCore::sendAXTextChangedIgnoringLineBreaks):
        * editing/DeleteFromTextNodeCommand.cpp:
        (WebCore::DeleteFromTextNodeCommand::doApply):
        (WebCore::DeleteFromTextNodeCommand::doUnapply):
        * editing/Editor.cpp:
        (WebCore::Editor::respondToChangedContents):
        (WebCore::Editor::markAndReplaceFor):
        * editing/InsertIntoTextNodeCommand.cpp:
        (WebCore::InsertIntoTextNodeCommand::doApply):
        (WebCore::InsertIntoTextNodeCommand::doUnapply):
        * editing/InsertNodeBeforeCommand.cpp:
        (WebCore::InsertNodeBeforeCommand::doApply):
        (WebCore::InsertNodeBeforeCommand::doUnapply):
        * editing/chromium/FrameSelectionChromium.cpp:
        (WebCore::FrameSelection::notifyAccessibilityForSelectionChange):
        * html/HTMLInputElement.cpp:
        (WebCore::HTMLInputElement::setChecked):
        * html/HTMLSelectElement.cpp:
        (WebCore::HTMLSelectElement::childrenChanged):
        (WebCore::HTMLSelectElement::optionElementChildrenChanged):
        * html/HTMLTextFormControlElement.cpp:
        (WebCore::HTMLTextFormControlElement::setInnerTextValue):
        * html/InputType.cpp:
        (WebCore::InputType::applyStep):
        * html/RangeInputType.cpp:
        (WebCore::RangeInputType::handleKeydownEvent):
        * page/FocusController.cpp:
        (WebCore::FocusController::setInitialFocus):

2012-08-10  Arko Saha  <arko@motorola.com>

        REGRESSION(r125159): ASSERTION FAILED: m_listsInvalidatedAtDocument.contains(list) in Document::unregisterNodeListCache.



    if (!imageElement)
        return 0;
    
    AccessibilityObject* axRenderImage = areaElement->document()->axObjectCache()->getOrCreate(imageElement);
    if (!axRenderImage)
        return 0;
    

    if (focusedNode->hasTagName(areaTag))
        return focusedImageMapUIElement(static_cast<HTMLAreaElement*>(focusedNode));
    
    AccessibilityObject* obj = focusedNode->document()->axObjectCache()->getOrCreate(focusedNode);
    if (!obj)
        return 0;

    AccessibilityObject* obj = focusedNodeRenderer->document()->axObjectCache()->getOrCreate(focusedNodeRenderer);

    if (obj->shouldFocusActiveDescendant()) {
        if (AccessibilityObject* descendant = obj->activeDescendant())
            obj = descendant;

    if (!node)
        return 0;

    AXID renderID = node->renderer() ? m_renderObjectMapping.get(node->renderer()) : 0;
    ASSERT(!HashTraits<AXID>::isDeletedValue(renderID));
        return get(node->renderer());

    AXID nodeID = m_nodeObjectMapping.get(node);
    ASSERT(!HashTraits<AXID>::isDeletedValue(nodeID));

    if (node->renderer() && nodeID && !renderID) {
        // This can happen if an AccessibilityNodeObject is created for a node that's not
        // rendered, but later something changes and it gets a renderer (like if it's
        // reparented).
        remove(nodeID);
        return 0;
    }

    if (renderID)
        return m_objects.get(renderID).get();

    if (!nodeID)
        return 0;

    return m_objects.get(nodeID).get();
}

// FIXME: This probably belongs on Node.

    m_idsInUse.remove(objID);
}

void AXObjectCache::contentChanged(Node* node)
{
    if (AccessibilityObject* object = getOrCreate(node))
        object->contentChanged(); 
}

void AXObjectCache::contentChanged(RenderObject* renderer)
{
    if (AccessibilityObject* object = getOrCreate(renderer))
    if (object)
        object->contentChanged(); 
}

void AXObjectCache::updateCacheAfterNodeIsAttached(Node* node)
{
    // Calling get() will update the AX object if we had an AccessibilityNodeObject but now we need
    // an AccessibilityRenderObject, because it was reparented to a location outside of a canvas.
    get(node);
}

void AXObjectCache::childrenChanged(Node* node)
{
    if (AccessibilityObject* obj = get(node))
        obj->childrenChanged();
}

void AXObjectCache::childrenChanged(RenderObject* renderer)
{
    if (AccessibilityObject* obj = get(renderer))
        return;
 
    AXID axID = m_renderObjectMapping.get(renderer);
    if (!axID)
        return;
    
    AccessibilityObject* obj = m_objects.get(axID).get();
    if (obj)
        obj->childrenChanged();
}
    

    
void AXObjectCache::postNotification(RenderObject* renderer, AXNotification notification, bool postToElement, PostType postType)
{
    // Notifications for text input objects are sent to that object.
    // All others are sent to the top WebArea.
    if (!renderer)
        return;
    

    postNotification(object.get(), renderer->document(), notification, postToElement, postType);
}

void AXObjectCache::postNotification(Node* node, AXNotification notification, bool postToElement, PostType postType)
{
    if (!node)
        return;
    
    // Get an accessibility object that already exists. One should not be created here
    // because a render update may be in progress and creating an AX object can re-trigger a layout
    RefPtr<AccessibilityObject> object = get(node);
    while (!object && node) {
        node = node->parentNode();
        object = get(node);
    }
    
    if (!node)
        return;
    
    postNotification(object.get(), node->document(), notification, postToElement, postType);
}

void AXObjectCache::postNotification(AccessibilityObject* object, Document* document, AXNotification notification, bool postToElement, PostType postType)
{
    if (object && !postToElement)

        postPlatformNotification(object, notification);
}

void AXObjectCache::checkedStateChanged(Node* node)
{
    postNotification(node, AXObjectCache::AXCheckedStateChanged, true);
}

void AXObjectCache::selectedChildrenChanged(Node* node)
{
    // postToElement is false so that you can pass in any child of an element and it will go up the parent tree
    // to find the container which should send out the notification.
    postNotification(node, AXSelectedChildrenChanged, false);
}

void AXObjectCache::selectedChildrenChanged(RenderObject* renderer)

    postNotification(renderer, AXSelectedChildrenChanged, false);
}

void AXObjectCache::nodeTextChangeNotification(Node* node, AXTextChange textChange, unsigned offset, const String& text)
{
    if (!node)
        return;

    // Delegate on the right platform
    AccessibilityObject* obj = getOrCreate(node);
    nodeTextChangePlatformNotification(obj, textChange, offset, text);
}


        return;
    
    // We don't want to create a scroll view from this method, only update an existing one.
    if (AccessibilityObject* scrollViewObject = get(view))
    if (scrollViewObject)
        scrollViewObject->updateChildrenIfNecessary();
}
    
void AXObjectCache::handleAriaExpandedChange(Node* node)
{
    if (AccessibilityObject* obj = getOrCreate(node))
        return;
    AccessibilityObject* obj = getOrCreate(renderer);
    if (obj)
        obj->handleAriaExpandedChanged();
}
    
void AXObjectCache::handleActiveDescendantChanged(Node* node)
{
    if (AccessibilityObject* obj = getOrCreate(node))
        return;
    AccessibilityObject* obj = getOrCreate(renderer);
    if (obj)
        obj->handleActiveDescendantChanged();
}

void AXObjectCache::handleAriaRoleChanged(Node* node)
{
    if (AccessibilityObject* obj = getOrCreate(node))
        obj->updateAccessibilityRole();
    AccessibilityObject* obj = getOrCreate(renderer);
    if (obj && obj->isAccessibilityRenderObject())
        static_cast<AccessibilityRenderObject*>(obj)->updateAccessibilityRole();
}

VisiblePosition AXObjectCache::visiblePositionForTextMarkerData(TextMarkerData& textMarkerData)

            return;
    }
    
    // find or create an accessibility object for this node
    AXObjectCache* cache = domNode->document()->axObjectCache();
    RefPtr<AccessibilityObject> obj = cache->getOrCreate(domNode);
    
    // find or create an accessibility object for this renderer
    AXObjectCache* cache = renderer->document()->axObjectCache();
    RefPtr<AccessibilityObject> obj = cache->getOrCreate(renderer);
    
    textMarkerData.axID = obj.get()->axObjectID();
    textMarkerData.node = domNode;

    if (!node)
        return false;

    const AccessibilityObject* axObject = getOrCreate(const_cast<Node*>(node));
    return axObject && axObject->isTextControl();
}





    void detachWrapper(AccessibilityObject*);
    void attachWrapper(AccessibilityObject*);
    void childrenChanged(Node*);
    void childrenChanged(RenderObject*);
    void checkedStateChanged(Node*);
    void selectedChildrenChanged(Node*);
    void selectedChildrenChanged(RenderObject*);
    // Called by a node when text or a text equivalent (e.g. alt) attribute is changed.
    void contentChanged(Node*);
    void contentChanged(RenderObject*);
    // Called when a node has just been attached, so we can make sure we have the right subclass of AccessibilityObject.
    void updateCacheAfterNodeIsAttached(Node*);

    void handleActiveDescendantChanged(Node*);
    void handleAriaRoleChanged(Node*);
    void handleFocusedUIElementChanged(Node* oldFocusedNode, Node* newFocusedNode);
    void handleScrolledToAnchor(const Node* anchorNode);
    void handleAriaExpandedChange(Node*);
    void handleScrollbarUpdate(ScrollView*);

#if HAVE(ACCESSIBILITY)

    AXID platformGenerateAXID() const;
    AccessibilityObject* objectFromAXID(AXID id) const { return m_objects.get(id).get(); }

    // This is a weak reference cache for knowing if Nodes used by TextMarkers are valid.
    void setNodeInUse(Node* n) { m_textMarkerNodes.add(n); }
    void removeNodeForUse(Node* n) { m_textMarkerNodes.remove(n); }
    bool isNodeInUse(Node* n) { return m_textMarkerNodes.contains(n); }
    
    // Text marker utilities.
    void textMarkerDataForVisiblePosition(TextMarkerData&, const VisiblePosition&);
    VisiblePosition visiblePositionForTextMarkerData(TextMarkerData&);

    };

    void postNotification(RenderObject*, AXNotification, bool postToElement, PostType = PostAsynchronously);
    void postNotification(Node*, AXNotification, bool postToElement, PostType = PostAsynchronously);
    void postNotification(AccessibilityObject*, Document*, AXNotification, bool postToElement, PostType = PostAsynchronously);

    enum AXTextChange {

        AXTextDeleted,
    };

    void nodeTextChangeNotification(Node*, AXTextChange, unsigned offset, const String&);

    enum AXLoadingEvent {
        AXLoadingStarted,

    void nodeTextChangePlatformNotification(AccessibilityObject*, AXTextChange, unsigned offset, const String&);
    void frameLoadingEventPlatformNotification(AccessibilityObject*, AXLoadingEvent);

    // This is a weak reference cache for knowing if Nodes used by TextMarkers are valid.
    void setNodeInUse(Node* n) { m_textMarkerNodes.add(n); }
    void removeNodeForUse(Node* n) { m_textMarkerNodes.remove(n); }
    bool isNodeInUse(Node* n) { return m_textMarkerNodes.contains(n); }

private:
    Document* m_document;
    HashMap<AXID, RefPtr<AccessibilityObject> > m_objects;

inline bool nodeHasRole(Node*, const String&) { return false; }
inline const Element* AXObjectCache::rootAXEditableElement(const Node*) { return 0; }
inline void AXObjectCache::attachWrapper(AccessibilityObject*) { }
inline void AXObjectCache::checkedStateChanged(Node*) { }
inline void AXObjectCache::childrenChanged(RenderObject*) { }
inline void AXObjectCache::childrenChanged(Node*) { }
inline void AXObjectCache::contentChanged(RenderObject*) { }
inline void AXObjectCache::contentChanged(Node*) { }
inline void AXObjectCache::updateCacheAfterNodeIsAttached(Node*) { }
inline void AXObjectCache::detachWrapper(AccessibilityObject*) { }
inline void AXObjectCache::frameLoadingEventNotification(Frame*, AXLoadingEvent) { }
inline void AXObjectCache::frameLoadingEventPlatformNotification(AccessibilityObject*, AXLoadingEvent) { }
inline void AXObjectCache::handleActiveDescendantChanged(Node*) { }
inline void AXObjectCache::handleAriaExpandedChange(Node*) { }
inline void AXObjectCache::handleAriaRoleChanged(Node*) { }
inline void AXObjectCache::handleFocusedUIElementChanged(Node*, Node*) { }
inline void AXObjectCache::handleScrollbarUpdate(ScrollView*) { }
inline void AXObjectCache::handleScrolledToAnchor(const Node*) { }
inline void AXObjectCache::nodeTextChangeNotification(Node*, AXTextChange, unsigned, const String&) { }
inline void AXObjectCache::nodeTextChangePlatformNotification(AccessibilityObject*, AXTextChange, unsigned, const String&) { }
inline void AXObjectCache::postNotification(AccessibilityObject*, Document*, AXNotification, bool postToElement, PostType) { }
inline void AXObjectCache::postNotification(RenderObject*, AXNotification, bool postToElement, PostType) { }
inline void AXObjectCache::postNotification(Node*, AXNotification, bool postToElement, PostType) { }
inline void AXObjectCache::postPlatformNotification(AccessibilityObject*, AXNotification) { }
inline void AXObjectCache::remove(AXID) { }
inline void AXObjectCache::remove(RenderObject*) { }
inline void AXObjectCache::remove(Node*) { }
inline void AXObjectCache::remove(Widget*) { }
inline void AXObjectCache::selectedChildrenChanged(RenderObject*) { }
inline void AXObjectCache::selectedChildrenChanged(Node*) { }
#endif

}

Lines 172-178 AccessibilityObject* AccessibilityListBo Source/WebCore/accessibility/AccessibilityListBoxOption.cpp_sec1
- Source/WebCore/accessibility/AccessibilityListBoxOption.cpp -1 / +1 lines
172	if (!parentNode)	172	if (!parentNode)
173	return 0;	173	return 0;
174		174
175	return m_optionElement->document()->axObjectCache()->getOrCreate(parentNode->renderer());	175	return m_optionElement->document()->axObjectCache()->getOrCreate(parentNode);
176	}	176	}
177		177
178	void AccessibilityListBoxOption::setSelected(bool selected)	178	void AccessibilityListBoxOption::setSelected(bool selected)

Lines 81-87 public: Source/WebCore/accessibility/AccessibilityNodeObject.h_sec1
- Source/WebCore/accessibility/AccessibilityNodeObject.h -1 / +1 lines
81		81
82	virtual void detach();	82	virtual void detach();
83	virtual void childrenChanged();	83	virtual void childrenChanged();
84	void updateAccessibilityRole();	84	virtual void updateAccessibilityRole();
85		85
86	virtual LayoutRect elementRect() const;	86	virtual LayoutRect elementRect() const;
87		87



        if (!doc || !doc->renderer())
            return;
        
        object = object->axObjectCache()->getOrCreate(doc);
    }

    if (object)

        return false;

    // create an AX object, but skip it if it is not supposed to be seen
    AccessibilityObject* object = replacedNode->renderer()->document()->axObjectCache()->getOrCreate(replacedNode);
    if (object->accessibilityIsIgnored())
        return false;


Lines 557-562 public: Source/WebCore/accessibility/AccessibilityObject.h_sec1
- Source/WebCore/accessibility/AccessibilityObject.h +1 lines
557		557
558	virtual void childrenChanged() { }	558	virtual void childrenChanged() { }
559	virtual void contentChanged() { }	559	virtual void contentChanged() { }
		560	virtual void updateAccessibilityRole() { }
560	const AccessibilityChildrenVector& children();	561	const AccessibilityChildrenVector& children();
561	virtual void addChildren() { }	562	virtual void addChildren() { }
562	virtual bool canHaveChildren() const { return true; }	563	virtual bool canHaveChildren() const { return true; }



{
    Element* menu = menuElementForMenuButton();
    if (menu && menu->renderer())
        return axObjectCache()->getOrCreate(menu);
    return 0;
}



    if (menuItem && menuItem->renderer()) {
        // ARIA just has generic menu items.  AppKit needs to know if this is a top level items like MenuBarButton or MenuBarItem
        AccessibilityObject* menuItemAX = axObjectCache()->getOrCreate(menuItem);
        if (menuItemAX->isMenuButton())
            return menuItemAX;
    }

    if (!label || !label->renderer())
        return boundingBoxRect();
    
    LayoutRect labelRect = axObjectCache()->getOrCreate(label)->elementRect();
    labelRect.unite(boundingBoxRect());
    return labelRect;
}

        unsigned len = formElements.size();
        for (unsigned i = 0; i < len; ++i) {
            Node* associateElement = formElements[i].get();
            if (AccessibilityObject* object = axObjectCache()->getOrCreate(associateElement))
                linkedUIElements.append(object);        
        } 
    } else {

            if (list->item(i)->hasTagName(inputTag)) {
                HTMLInputElement* associateElement = static_cast<HTMLInputElement*>(list->item(i));
                if (associateElement->isRadioButton() && associateElement->name() == input->name()) {
                    if (AccessibilityObject* object = axObjectCache()->getOrCreate(associateElement))
                        linkedUIElements.append(object);
                }
            }

    unsigned count = elements.size();
    for (unsigned k = 0; k < count; ++k) {
        Element* element = elements[k];
        AccessibilityObject* flowToElement = cache->getOrCreate(element);
        if (flowToElement)
            flowTo.append(flowToElement);
    }

        return 0;
    HTMLLabelElement* label = labelForElement(static_cast<Element*>(element));
    if (label && label->renderer())
        return axObjectCache()->getOrCreate(label);

    return 0;   
}

    unsigned count = elements.size();
    for (unsigned k = 0; k < count; ++k) {
        Element* element = elements[k];
        AccessibilityObject* tabPanel = axObjectCache()->getOrCreate(element);

        // A tab item should only control tab panels.
        if (!tabPanel || tabPanel->roleValue() != TabPanelRole)

    if (!imageElement)
        return 0;
    
    return axObjectCache()->getOrCreate(imageElement);
}
    
void AccessibilityRenderObject::getDocumentLinks(AccessibilityChildrenVector& result)

    if (!node)
        return false;

    const AccessibilityObject* axObjectForNode = axObjectCache()->getOrCreate(const_cast<Node*>(node));
    if (!axObjectForNode)
        return false;


    if (!target)
        return 0;
    
    AccessibilityObject* obj = axObjectCache()->getOrCreate(target);
    if (obj && obj->isAccessibilityRenderObject())
    // an activedescendant is only useful if it has a renderer, because that's what's needed to post the notification
        return obj;

    if (!correspondingControl)
        return 0;
    
    return axObjectCache()->getOrCreate(correspondingControl);     
}

AccessibilityObject* AccessibilityRenderObject::correspondingLabelForControlElement() const

    if (node && node->isHTMLElement()) {
        HTMLLabelElement* label = labelForElement(static_cast<Element*>(node));
        if (label)
            return axObjectCache()->getOrCreate(label);
    }

    return 0;



    if (!doc || !doc->renderer())
        return 0;

    return axObjectCache()->getOrCreate(doc);
}

AccessibilityObject* AccessibilityScrollView::accessibilityHitTest(const IntPoint& point) const

    
    HTMLFrameOwnerElement* owner = static_cast<FrameView*>(m_scrollView.get())->frame()->ownerElement();
    if (owner && owner->renderer())
        return axObjectCache()->getOrCreate(owner);

    return 0;
}

    
    HTMLFrameOwnerElement* owner = static_cast<FrameView*>(m_scrollView.get())->frame()->ownerElement();
    if (owner && owner->renderer())
        return axObjectCache()->get(owner);
    
    return 0;
}




        // Calling handleFocusedUIElementChanged will focus the new active
        // descendant and send the AXFocusedUIElementChanged notification.
        handleFocusedUIElementChanged(0, obj->document()->focusedNode());
        break;
    case AXAutocorrectionOccured:
    case AXCheckedStateChanged:

{
}

void AXObjectCache::handleFocusedUIElementChanged(Node*, Node* newFocusedNode)
{
    if (!newFocusedNode)
        return;

    Page* page = newFocusedNode->document()->page();
    if (!page)
        return;




    }
}

void AXObjectCache::handleFocusedUIElementChanged(Node* oldFocusedNode, Node* newFocusedNode)
{
    RefPtr<AccessibilityObject> oldObject = getOrCreate(oldFocusedNode);
    if (oldObject) {
        g_signal_emit_by_name(oldObject->wrapper(), "focus-event", false);
        g_signal_emit_by_name(oldObject->wrapper(), "state-change", "focused", false);
    }
    RefPtr<AccessibilityObject> newObject = getOrCreate(newFocusedNode);
    if (newObject) {
        g_signal_emit_by_name(newObject->wrapper(), "focus-event", true);
        g_signal_emit_by_name(newObject->wrapper(), "state-change", "focused", true);

Lines 139-145 void AXObjectCache::frameLoadingEventPla Source/WebCore/accessibility/mac/AXObjectCacheMac.mm_sec1
- Source/WebCore/accessibility/mac/AXObjectCacheMac.mm -1 / +1 lines
139	{	139	{
140	}	140	}
141		141
142	void AXObjectCache::handleFocusedUIElementChanged(RenderObject, RenderObject)	142	void AXObjectCache::handleFocusedUIElementChanged(Node, Node)
143	{	143	{
144	wkAccessibilityHandleFocusChanged();	144	wkAccessibilityHandleFocusChanged();
145	}	145	}



    return objID;
}

void AXObjectCache::handleFocusedUIElementChanged(Node*, Node* newFocusedNode)
{
    if (!newFocusedNode)
        return;

    Page* page = newFocusedNode->document()->page();
    if (!page || !page->chrome()->platformPageClient())
        return;




    }

#if PLATFORM(MAC) || PLATFORM(WIN) || PLATFORM(GTK) || PLATFORM(CHROMIUM)
    if (!focusChangeBlocked && m_focusedNode && AXObjectCache::accessibilityEnabled())
        axObjectCache()->handleFocusedUIElementChanged(oldFocusedNode.get(), newFocusedNode.get());
        RenderObject* newFocusedRenderer = 0;

        if (oldFocusedNode)
            oldFocusedRenderer = oldFocusedNode->renderer();
        if (newFocusedNode)
            newFocusedRenderer = newFocusedNode->renderer();

        axObjectCache()->handleFocusedUIElementChanged(oldFocusedRenderer, newFocusedRenderer);
    }
#endif
    if (!focusChangeBlocked)
        page()->chrome()->focusedNodeChanged(m_focusedNode.get());



    const QualifiedName& attrName = attribute.name();
    if (attrName == aria_activedescendantAttr) {
        // any change to aria-activedescendant attribute triggers accessibility focus change, but document focus remains intact
        document()->axObjectCache()->handleActiveDescendantChanged(this);
    } else if (attrName == roleAttr) {
        // the role attribute can change at any time, and the AccessibilityObject must pick up these changes
        document()->axObjectCache()->handleAriaRoleChanged(this);
    } else if (attrName == aria_valuenowAttr) {
        // If the valuenow attribute changes, AX clients need to be notified.
        document()->axObjectCache()->postNotification(this, AXObjectCache::AXValueChanged, true);
    } else if (attrName == aria_labelAttr || attrName == aria_labeledbyAttr || attrName == altAttr || attrName == titleAttr) {
        // If the content of an element changes due to an attribute change, notify accessibility.
        document()->axObjectCache()->contentChanged(this);
    } else if (attrName == aria_checkedAttr)
        document()->axObjectCache()->checkedStateChanged(this);
    else if (attrName == aria_selectedAttr)
        document()->axObjectCache()->selectedChildrenChanged(this);
    else if (attrName == aria_expandedAttr)
        document()->axObjectCache()->handleAriaExpandedChange(this);
    else if (attrName == aria_hiddenAttr)
        document()->axObjectCache()->childrenChanged(this);
    else if (attrName == aria_invalidAttr)
        document()->axObjectCache()->postNotification(this, AXObjectCache::AXInvalidStatusChanged, true);
}

// Returns true is the given attribute is an event handler.

Lines 414-420 Node::~Node() Source/WebCore/dom/Node.cpp_sec1
- Source/WebCore/dom/Node.cpp -1 / +5 lines
414		414
415	Document* doc = m_document;	415	Document* doc = m_document;
416	if (AXObjectCache::accessibilityEnabled() && doc && doc->axObjectCacheExists())	416	if (AXObjectCache::accessibilityEnabled() && doc && doc->axObjectCacheExists())
417	doc->axObjectCache()->removeNodeForUse(this);	417	doc->axObjectCache()->remove(this);
418		418
419	if (m_previous)	419	if (m_previous)
420	m_previous->setNextSibling(0);	420	m_previous->setNextSibling(0);
Lines 1283-1288 void Node::attach() Source/WebCore/dom/Node.cpp_sec2
1283		1283
1284	setAttached();	1284	setAttached();
1285	clearNeedsStyleRecalc();	1285	clearNeedsStyleRecalc();
		1286
		1287	Document* doc = m_document;
		1288	if (AXObjectCache::accessibilityEnabled() && doc && doc->axObjectCacheExists())
		1289	doc->axObjectCache()->updateCacheAfterNodeIsAttached(this);
1286	}	1290	}
1287		1291
1288	#ifndef NDEBUG	1292	#ifndef NDEBUG

Lines 51-57 static void sendAXTextChangedIgnoringLin Source/WebCore/editing/AppendNodeCommand.cpp_sec1
- Source/WebCore/editing/AppendNodeCommand.cpp -1 / +1 lines
51	if (nodeValue == "\n")	51	if (nodeValue == "\n")
52	return;	52	return;
53		53
54	node->document()->axObjectCache()->nodeTextChangeNotification(node->renderer(), textChange, 0, nodeValue);	54	node->document()->axObjectCache()->nodeTextChangeNotification(node, textChange, 0, nodeValue);
55	}	55	}
56		56
57	void AppendNodeCommand::doApply()	57	void AppendNodeCommand::doApply()



    
    // Need to notify this before actually deleting the text
    if (AXObjectCache::accessibilityEnabled())
        document()->axObjectCache()->nodeTextChangeNotification(m_node.get(), AXObjectCache::AXTextDeleted, m_offset, m_text);

    m_node->deleteData(m_offset, m_count, ec);
}

    m_node->insertData(m_offset, m_text, ec);

    if (AXObjectCache::accessibilityEnabled())
        document()->axObjectCache()->nodeTextChangeNotification(m_node.get(), AXObjectCache::AXTextInserted, m_offset, m_text);
}

#ifndef NDEBUG



    if (AXObjectCache::accessibilityEnabled()) {
        Node* node = endingSelection.start().deprecatedNode();
        if (node)
            m_frame->document()->axObjectCache()->postNotification(node, AXObjectCache::AXValueChanged, false);
    }

    updateMarkersForWordsAffectedByEditing(true);

                
                if (AXObjectCache::accessibilityEnabled()) {
                    if (Element* root = m_frame->selection()->selection().rootEditableElement())
                        m_frame->document()->axObjectCache()->postNotification(root, AXObjectCache::AXAutocorrectionOccured, true);
                }

                selectionChanged = true;



    m_node->insertData(m_offset, m_text, ec);

    if (AXObjectCache::accessibilityEnabled())
        document()->axObjectCache()->nodeTextChangeNotification(m_node.get(), AXObjectCache::AXTextInserted, m_offset, m_text);
}

void InsertIntoTextNodeCommand::doUnapply()

        
    // Need to notify this before actually deleting the text
    if (AXObjectCache::accessibilityEnabled())
        document()->axObjectCache()->nodeTextChangeNotification(m_node.get(), AXObjectCache::AXTextDeleted, m_offset, m_text);

    ExceptionCode ec;
    m_node->deleteData(m_offset, m_text.length(), ec);



    parent->insertBefore(m_insertChild.get(), m_refChild.get(), ec);

    if (AXObjectCache::accessibilityEnabled())
        document()->axObjectCache()->nodeTextChangeNotification(m_insertChild.get(), AXObjectCache::AXTextInserted, 0, m_insertChild->nodeValue());
}

void InsertNodeBeforeCommand::doUnapply()

        
    // Need to notify this before actually deleting the text
    if (AXObjectCache::accessibilityEnabled())
        document()->axObjectCache()->nodeTextChangeNotification(m_insertChild.get(), AXObjectCache::AXTextDeleted, 0, m_insertChild->nodeValue());

    ExceptionCode ec;
    m_insertChild->remove(ec);

Lines 42-48 void FrameSelection::notifyAccessibility Source/WebCore/editing/chromium/FrameSelectionChromium.cpp_sec1
- Source/WebCore/editing/chromium/FrameSelectionChromium.cpp -1 / +1 lines
42	// FIXME: Support editable text in chromium.	42	// FIXME: Support editable text in chromium.
43	if (AXObjectCache::accessibilityEnabled() && m_selection.start().isNotNull() && m_selection.end().isNotNull()) {	43	if (AXObjectCache::accessibilityEnabled() && m_selection.start().isNotNull() && m_selection.end().isNotNull()) {
44	Document* document = m_frame->document();	44	Document* document = m_frame->document();
45	document->axObjectCache()->postNotification(m_selection.start().deprecatedNode()->renderer(), AXObjectCache::AXSelectedTextChanged, false);	45	document->axObjectCache()->postNotification(m_selection.start().deprecatedNode(), AXObjectCache::AXSelectedTextChanged, false);
46	}	46	}
47	}	47	}
48		48

Lines 850-856 void HTMLInputElement::setChecked(bool n Source/WebCore/html/HTMLInputElement.cpp_sec1
- Source/WebCore/html/HTMLInputElement.cpp -1 / +1 lines
850	// RenderTextView), but it's not possible to do it at the moment	850	// RenderTextView), but it's not possible to do it at the moment
851	// because of the way the code is structured.	851	// because of the way the code is structured.
852	if (renderer() && AXObjectCache::accessibilityEnabled())	852	if (renderer() && AXObjectCache::accessibilityEnabled())
853	renderer()->document()->axObjectCache()->checkedStateChanged(renderer());	853	renderer()->document()->axObjectCache()->checkedStateChanged(this);
854		854
855	// Only send a change event for items in the document (avoid firing during	855	// Only send a change event for items in the document (avoid firing during
856	// parsing) and don't send a change event for a radio button that's getting	856	// parsing) and don't send a change event for a radio button that's getting



    HTMLFormControlElementWithState::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
    
    if (AXObjectCache::accessibilityEnabled() && renderer())
        renderer()->document()->axObjectCache()->childrenChanged(this);
}

void HTMLSelectElement::optionElementChildrenChanged()

    setNeedsValidityCheck();

    if (AXObjectCache::accessibilityEnabled() && renderer())
        renderer()->document()->axObjectCache()->childrenChanged(this);
}

void HTMLSelectElement::accessKeyAction(bool sendMouseEvents)

Lines 484-490 void HTMLTextFormControlElement::setInne Source/WebCore/html/HTMLTextFormControlElement.cpp_sec1
- Source/WebCore/html/HTMLTextFormControlElement.cpp -1 / +1 lines
484	bool textIsChanged = value != innerTextValue();	484	bool textIsChanged = value != innerTextValue();
485	if (textIsChanged \|\| !innerTextElement()->hasChildNodes()) {	485	if (textIsChanged \|\| !innerTextElement()->hasChildNodes()) {
486	if (textIsChanged && document() && renderer() && AXObjectCache::accessibilityEnabled())	486	if (textIsChanged && document() && renderer() && AXObjectCache::accessibilityEnabled())
487	document()->axObjectCache()->postNotification(renderer(), AXObjectCache::AXValueChanged, false);	487	document()->axObjectCache()->postNotification(this, AXObjectCache::AXValueChanged, false);
488		488
489	ExceptionCode ec = 0;	489	ExceptionCode ec = 0;
490	innerTextElement()->setInnerText(value, ec);	490	innerTextElement()->setInnerText(value, ec);

Lines 972-978 void InputType::applyStep(int count, Any Source/WebCore/html/InputType.cpp_sec1
- Source/WebCore/html/InputType.cpp -1 / +1 lines
972	setValueAsDecimal(newValue, eventBehavior, ec);	972	setValueAsDecimal(newValue, eventBehavior, ec);
973		973
974	if (AXObjectCache::accessibilityEnabled())	974	if (AXObjectCache::accessibilityEnabled())
975	element()->document()->axObjectCache()->postNotification(element()->renderer(), AXObjectCache::AXValueChanged, true);	975	element()->document()->axObjectCache()->postNotification(element(), AXObjectCache::AXValueChanged, true);
976	}	976	}
977		977
978	bool InputType::getAllowedValueStep(Decimal* step) const	978	bool InputType::getAllowedValueStep(Decimal* step) const

Lines 239-245 void RangeInputType::handleKeydownEvent( Source/WebCore/html/RangeInputType.cpp_sec1
- Source/WebCore/html/RangeInputType.cpp -1 / +1 lines
239	setValueAsDecimal(newValue, eventBehavior, ec);	239	setValueAsDecimal(newValue, eventBehavior, ec);
240		240
241	if (AXObjectCache::accessibilityEnabled())	241	if (AXObjectCache::accessibilityEnabled())
242	element()->document()->axObjectCache()->postNotification(element()->renderer(), AXObjectCache::AXValueChanged, true);	242	element()->document()->axObjectCache()->postNotification(element(), AXObjectCache::AXValueChanged, true);
243	element()->dispatchFormControlChangeEvent();	243	element()->dispatchFormControlChangeEvent();
244	}	244	}
245		245

Lines 285-291 bool FocusController::setInitialFocus(Fo Source/WebCore/page/FocusController.cpp_sec1
- Source/WebCore/page/FocusController.cpp -1 / +1 lines
285	// into the web area again, even if focus did not change within WebCore. PostNotification is called instead	285	// into the web area again, even if focus did not change within WebCore. PostNotification is called instead
286	// of handleFocusedUIElementChanged, because this will send the notification even if the element is the same.	286	// of handleFocusedUIElementChanged, because this will send the notification even if the element is the same.
287	if (AXObjectCache::accessibilityEnabled())	287	if (AXObjectCache::accessibilityEnabled())
288	focusedOrMainFrame()->document()->axObjectCache()->postNotification(focusedOrMainFrame()->document()->renderer(), AXObjectCache::AXFocusedUIElementChanged, true);	288	focusedOrMainFrame()->document()->axObjectCache()->postNotification(focusedOrMainFrame()->document(), AXObjectCache::AXFocusedUIElementChanged, true);
289		289
290	return didAdvanceFocus;	290	return didAdvanceFocus;
291	}	291	}



2012-08-15  Dominic Mazzoni  <dmazzoni@google.com>

        AX: Calls to AXObjectCache should prefer Node over Renderer
        https://bugs.webkit.org/show_bug.cgi?id=91794

        Reviewed by NOBODY (OOPS!).

        New tests:
        - canvas-fallback-content tests that objects in a canvas subtree can be
          focused and then you can retrieve the role of the accessible object.
        - accessibility-node-memory-management ensures that an AccessibilityNodeObject
          is detached when its node is destroyed.
        - accessibility-node-reparent ensures that if an AccessibilityNodeObject is
          created for a node without a renderer, but the node later gets a renderer,
          the AccessibilityNodeObject is detached and an AccessibilityRenderObject is
          created instead.

        * accessibility/accessibility-node-memory-management-expected.txt: Added.
        * accessibility/accessibility-node-memory-management.html: Added.
        * accessibility/accessibility-node-reparent-expected.txt: Added.
        * accessibility/accessibility-node-reparent.html: Added.
        * accessibility/canvas-fallback-content-expected.txt: Added.
        * accessibility/canvas-fallback-content.html: Added.
        * platform/gtk/TestExpectations:

2012-08-10  Arko Saha  <arko@motorola.com>

        REGRESSION(r125159): ASSERTION FAILED: m_listsInvalidatedAtDocument.contains(list) in Document::unregisterNodeListCache.



This test makes sure that AccessibilityNodeObjects are properly detached when the node they point to is deleted.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


PASS expectedButtonRole != expectedDetachedRole is true
PASS canvasButtonRole is expectedButtonRole
PASS detachedCanvasButtonRole is expectedDetachedRole
PASS successfullyParsed is true

TEST COMPLETE

  + LF



<!DOCTYPE HTML>
<html>
<body>
<script src="../fast/js/resources/js-test-pre.js"></script>

<canvas id="canvas" tabindex="-1"></canvas>

<div id="console"></div>
<script>
description("This test makes sure that AccessibilityNodeObjects are properly detached when the node they point to is deleted.");

if (window.testRunner && window.accessibilityController) {
    window.testRunner.dumpAsText();

    // Create an ordinary button on the page, focus it and get its accessibility role.
    var button = document.createElement('button');
    document.body.appendChild(button);
    button.focus();
    window.axElement = accessibilityController.focusedElement;
    window.expectedButtonRole = axElement.role;

    // Now remove the node from the tree and get the role of the detached accessibility object.
    document.body.removeChild(button);
    window.expectedDetachedRole = axElement.role;
    shouldBeTrue("expectedButtonRole != expectedDetachedRole");

    // This time create a button that's a child of a canvas element. It will be focusable but not rendered.
    // In particular, this will create an AccessibilityNodeObject rather than an AccessibilityRenderObject.
    var canvas = document.getElementById('canvas');
    (function() {
        var button = document.createElement('button');
        canvas.appendChild(button);

        // Note: focusing the button and using that to get its accessibility object creates an extra
        // reference to the button and it won't get deleted when we want it to. So instead we focus the
        // canvas and get its first child.
        canvas.focus();
        window.axElement = accessibilityController.focusedElement.childAtIndex(0);

        window.canvasButtonRole = axElement.role;
        shouldBe("canvasButtonRole", "expectedButtonRole");

        // Now delete the node.
        canvas.removeChild(button);
    })();

    // Explicitly run garbage collection now; since there are no more references to the button,
    // the node will be destroyed.
    gc();

    // Ensure that the accessibility object is detached by checking its role.
    window.detachedCanvasButtonRole = axElement.role;
    shouldBe("detachedCanvasButtonRole", "expectedDetachedRole");
}

</script>

<script src="../fast/js/resources/js-test-post.js"></script>
</body>
</html>
  + text/html
  + LF




This test makes sure that AccessibilityNodeObjects are properly detached when the node they point to is reparented to a location that allows them to have a renderer.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


PASS expectedButtonRole != expectedDetachedRole is true
PASS canvasButtonRole is expectedButtonRole
PASS detachedCanvasButtonRole is expectedDetachedRole
PASS reparentedButtonRole is expectedButtonRole
PASS successfullyParsed is true

TEST COMPLETE

  + LF



<!DOCTYPE HTML>
<html>
<body>
<script src="../fast/js/resources/js-test-pre.js"></script>

<div id="container" tabindex="-1"></div>

<canvas id="canvas" tabindex="-1"></canvas>

<div id="console"></div>
<script>
description("This test makes sure that AccessibilityNodeObjects are properly detached when the node they point to is reparented to a location that allows them to have a renderer.");

if (window.testRunner && window.accessibilityController) {
    window.testRunner.dumpAsText();

    // Create an ordinary button on the page, focus it and get its accessibility role.
    var button = document.createElement('button');
    document.body.appendChild(button);
    button.focus();
    window.axElement = accessibilityController.focusedElement;
    window.expectedButtonRole = axElement.role;

    // Now remove the node from the tree and get the role of the detached accessibility object.
    document.body.removeChild(button);
    window.expectedDetachedRole = axElement.role;
    shouldBeTrue("expectedButtonRole != expectedDetachedRole");

    // This time create a button that's a child of a canvas element. It will be focusable but not rendered.
    // In particular, this will create an AccessibilityNodeObject rather than an AccessibilityRenderObject.
    var canvas = document.getElementById('canvas');
    (function() {
        var button = document.createElement('button');
        canvas.appendChild(button);

        // Note: focusing the button and using that to get its accessibility object creates an extra
        // reference to the button and it won't get deleted when we want it to. So instead we focus the
        // canvas and get its first child.
        canvas.focus();
        window.axElement = accessibilityController.focusedElement.childAtIndex(0);

        window.canvasButtonRole = axElement.role;
        shouldBe("canvasButtonRole", "expectedButtonRole");

        // Now reparent the node to a container that's not a canvas.
        var container = document.getElementById('container');
        container.appendChild(button);
        container.focus();
        window.axReparentedElement = accessibilityController.focusedElement.childAtIndex(0);
    })();

    // Ensure that the old accessibility object is detached by checking its role.
    window.detachedCanvasButtonRole = axElement.role;
    shouldBe("detachedCanvasButtonRole", "expectedDetachedRole");

    // Ensure that the new accessibility object for the now-reparented node has the correct role.
    window.reparentedButtonRole = axReparentedElement.role;
    shouldBe("reparentedButtonRole", "expectedButtonRole");
}

</script>

<script src="../fast/js/resources/js-test-post.js"></script>
</body>
</html>
  + text/html
  + LF



Link  Button          
Focusable
ARIA button
ARIA link
This test makes sure that focusable elements in canvas fallback content are accessible.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


link1
PASS document.activeElement == element is true
PASS axElement.role is "AXRole: AXLink"

button1
PASS document.activeElement == element is true
PASS axElement.role is "AXRole: AXButton"

text1
PASS document.activeElement == element is true
PASS axElement.role is "AXRole: AXTextField"

checkbox1
PASS document.activeElement == element is true
PASS axElement.role is "AXRole: AXCheckBox"

radio1
PASS document.activeElement == element is true
PASS axElement.role is "AXRole: AXRadioButton"

submit1
PASS document.activeElement == element is true
PASS axElement.role is "AXRole: AXButton"

combobox1
PASS document.activeElement == element is true
PASS axElement.role is "AXRole: AXPopUpButton"

focusable1
PASS document.activeElement == element is true
PASS axElement.role is "AXRole: AXGroup"

aria-button1
PASS document.activeElement == element is true
PASS axElement.role is "AXRole: AXButton"

aria-link1
PASS document.activeElement == element is true
PASS axElement.role is "AXRole: AXLink"

link2
PASS document.activeElement == element is true
PASS axElement.role is "AXRole: AXLink"

button2
PASS document.activeElement == element is true
PASS axElement.role is "AXRole: AXButton"

text2
PASS document.activeElement == element is true
PASS axElement.role is "AXRole: AXTextField"

checkbox2
PASS document.activeElement == element is true
PASS axElement.role is "AXRole: AXCheckBox"

radio2
PASS document.activeElement == element is true
PASS axElement.role is "AXRole: AXRadioButton"

submit2
PASS document.activeElement == element is true
PASS axElement.role is "AXRole: AXButton"

combobox2
PASS document.activeElement == element is true
PASS axElement.role is "AXRole: AXPopUpButton"

focusable2
PASS document.activeElement == element is true
PASS axElement.role is "AXRole: AXGroup"

aria-button2
PASS document.activeElement == element is true
PASS axElement.role is "AXRole: AXButton"

aria-link2
PASS document.activeElement == element is true
PASS axElement.role is "AXRole: AXLink"

focusable1
PASS document.activeElement == element is true
PASS axElement.role is "AXRole: AXButton"

focusable2
PASS document.activeElement == element is true
PASS axElement.role is "AXRole: AXButton"

PASS successfullyParsed is true

TEST COMPLETE

  + LF



<!DOCTYPE HTML>
<html>
<body>
<script src="../fast/js/resources/js-test-pre.js"></script>

<div>
  <a id="link1" href="#">Link</a>
  <button id="button1">Button</button>
  <input id="text1" type="text">
  <input id="checkbox1" type="checkbox">
  <input id="radio1" type="radio">
  <input id="submit1" type="submit">
  <select id="combobox1"><option>1<option>2</select>
  <div id="focusable1" tabindex="0">Focusable</div>
  <div id="aria-button1" tabindex="0" role="button">ARIA button</div>
  <div id="aria-link1" tabindex="0" role="link">ARIA link</div>
</div>

<canvas id="myCanvas" width="300" height="300">
  <a id="link2" href="#">Link</a>
  <button id="button2">Button</button>
  <input id="text2" type="text">
  <input id="checkbox2" type="checkbox">
  <input id="radio2" type="radio">
  <input id="submit2" type="submit">
  <select id="combobox2"><option>1<option>2</select>
  <div id="focusable2" tabindex="0">Focusable</div>
  <div id="aria-button2" tabindex="0" role="button">ARIA button</div>
  <div id="aria-link2" tabindex="0" role="link">ARIA link</div>
</canvas>

<div id="console"></div>
<script>
description("This test makes sure that focusable elements in canvas fallback content are accessible.");

if (window.testRunner && window.accessibilityController) {
    window.testRunner.dumpAsText();

    function check(id, expectedRole) {
        debug(id);
        window.element = document.getElementById(id);
        element.focus();
        shouldBe("document.activeElement == element", "true");
        window.axElement = accessibilityController.focusedElement;
        shouldBe("axElement.role", "\"" + expectedRole + "\"");
        debug("");
    }

    // Check rendered controls.
    check("link1", "AXRole: AXLink");
    check("button1", "AXRole: AXButton");
    check("text1", "AXRole: AXTextField");
    check("checkbox1", "AXRole: AXCheckBox");
    check("radio1", "AXRole: AXRadioButton");
    check("submit1", "AXRole: AXButton");
    check("combobox1", "AXRole: AXPopUpButton");
    check("focusable1", "AXRole: AXGroup");
    check("aria-button1", "AXRole: AXButton");
    check("aria-link1", "AXRole: AXLink");

    // Check unrendered controls inside a canvas.
    check("link2", "AXRole: AXLink");
    check("button2", "AXRole: AXButton");
    check("text2", "AXRole: AXTextField");
    check("checkbox2", "AXRole: AXCheckBox");
    check("radio2", "AXRole: AXRadioButton");
    check("submit2", "AXRole: AXButton");
    check("combobox2", "AXRole: AXPopUpButton");
    check("focusable2", "AXRole: AXGroup");
    check("aria-button2", "AXRole: AXButton");
    check("aria-link2", "AXRole: AXLink");

    // Check that the role is updated when the element changes.
    document.getElementById('focusable1').setAttribute('role', 'button');
    check("focusable1", "AXRole: AXButton");
    document.getElementById('focusable2').setAttribute('role', 'button');
    check("focusable2", "AXRole: AXButton");
}

</script>

<script src="../fast/js/resources/js-test-post.js"></script>
</body>
</html>
  + text/html
  + LF

Lines 598-603 BUGWKGTK : accessibility/aria-text-role. LayoutTests/platform/gtk/TestExpectations_sec1
- LayoutTests/platform/gtk/TestExpectations +1 lines
598	BUGWKGTK : accessibility/aria-used-on-image-maps.html = TEXT	598	BUGWKGTK : accessibility/aria-used-on-image-maps.html = TEXT
599	BUGWKGTK : accessibility/button-press-action.html = TEXT	599	BUGWKGTK : accessibility/button-press-action.html = TEXT
600	BUGWKGTK : accessibility/canvas.html = TEXT	600	BUGWKGTK : accessibility/canvas.html = TEXT
		601	BUGWKGTK : accessibility/canvas-fallback-content.html = TEXT
601	BUGWKGTK : accessibility/editable-webarea-context-menu-point.html = TEXT	602	BUGWKGTK : accessibility/editable-webarea-context-menu-point.html = TEXT
602	BUGWKGTK : accessibility/ellipsis-text.html = TEXT	603	BUGWKGTK : accessibility/ellipsis-text.html = TEXT
603	BUGWKGTK : accessibility/ignore-spacer-elements.html = TEXT	604	BUGWKGTK : accessibility/ignore-spacer-elements.html = TEXT

Return to Bug 91794

Lines 384-390 static void appendAccessibilityObject(Ac Source/WebCore/accessibility/AccessibilityObject.cpp_sec1
- Source/WebCore/accessibility/AccessibilityObject.cpp -2 / +2 lines
384	if (!doc \|\| !doc->renderer())	384	if (!doc \|\| !doc->renderer())
385	return;	385	return;
386		386
387	object = object->axObjectCache()->getOrCreate(doc->renderer());	387	object = object->axObjectCache()->getOrCreate(doc);
388	}	388	}
389		389
390	if (object)	390	if (object)
Lines 779-785 static bool replacedNodeNeedsCharacter(N Source/WebCore/accessibility/AccessibilityObject.cpp_sec2
779	return false;	779	return false;
780		780
781	// create an AX object, but skip it if it is not supposed to be seen	781	// create an AX object, but skip it if it is not supposed to be seen
782	AccessibilityObject* object = replacedNode->renderer()->document()->axObjectCache()->getOrCreate(replacedNode->renderer());	782	AccessibilityObject* object = replacedNode->renderer()->document()->axObjectCache()->getOrCreate(replacedNode);
783	if (object->accessibilityIsIgnored())	783	if (object->accessibilityIsIgnored())
784	return false;	784	return false;
785		785

Lines 998-1004 AccessibilityObject* AccessibilityRender Source/WebCore/accessibility/AccessibilityRenderObject.cpp_sec1
- Source/WebCore/accessibility/AccessibilityRenderObject.cpp -13 / +13 lines
998	{	998	{
999	Element* menu = menuElementForMenuButton();	999	Element* menu = menuElementForMenuButton();
1000	if (menu && menu->renderer())	1000	if (menu && menu->renderer())
1001	return axObjectCache()->getOrCreate(menu->renderer());	1001	return axObjectCache()->getOrCreate(menu);
1002	return 0;	1002	return 0;
1003	}	1003	}
1004		1004
Lines 1016-1022 AccessibilityObject* AccessibilityRender Source/WebCore/accessibility/AccessibilityRenderObject.cpp_sec2
1016		1016
1017	if (menuItem && menuItem->renderer()) {	1017	if (menuItem && menuItem->renderer()) {
1018	// ARIA just has generic menu items. AppKit needs to know if this is a top level items like MenuBarButton or MenuBarItem	1018	// ARIA just has generic menu items. AppKit needs to know if this is a top level items like MenuBarButton or MenuBarItem
1019	AccessibilityObject* menuItemAX = axObjectCache()->getOrCreate(menuItem->renderer());	1019	AccessibilityObject* menuItemAX = axObjectCache()->getOrCreate(menuItem);
1020	if (menuItemAX->isMenuButton())	1020	if (menuItemAX->isMenuButton())
1021	return menuItemAX;	1021	return menuItemAX;
1022	}	1022	}
Lines 1552-1558 LayoutRect AccessibilityRenderObject::ch Source/WebCore/accessibility/AccessibilityRenderObject.cpp_sec3
1552	if (!label \|\| !label->renderer())	1552	if (!label \|\| !label->renderer())
1553	return boundingBoxRect();	1553	return boundingBoxRect();
1554		1554
1555	LayoutRect labelRect = axObjectCache()->getOrCreate(label->renderer())->elementRect();	1555	LayoutRect labelRect = axObjectCache()->getOrCreate(label)->elementRect();
1556	labelRect.unite(boundingBoxRect());	1556	labelRect.unite(boundingBoxRect());
1557	return labelRect;	1557	return labelRect;
1558	}	1558	}
Lines 1640-1646 void AccessibilityRenderObject::addRadio Source/WebCore/accessibility/AccessibilityRenderObject.cpp_sec4
1640	unsigned len = formElements.size();	1640	unsigned len = formElements.size();
1641	for (unsigned i = 0; i < len; ++i) {	1641	for (unsigned i = 0; i < len; ++i) {
1642	Node* associateElement = formElements[i].get();	1642	Node* associateElement = formElements[i].get();
1643	if (AccessibilityObject* object = axObjectCache()->getOrCreate(associateElement->renderer()))	1643	if (AccessibilityObject* object = axObjectCache()->getOrCreate(associateElement))
1644	linkedUIElements.append(object);	1644	linkedUIElements.append(object);
1645	}	1645	}
1646	} else {	1646	} else {
Lines 1650-1656 void AccessibilityRenderObject::addRadio Source/WebCore/accessibility/AccessibilityRenderObject.cpp_sec5
1650	if (list->item(i)->hasTagName(inputTag)) {	1650	if (list->item(i)->hasTagName(inputTag)) {
1651	HTMLInputElement* associateElement = static_cast<HTMLInputElement*>(list->item(i));	1651	HTMLInputElement* associateElement = static_cast<HTMLInputElement*>(list->item(i));
1652	if (associateElement->isRadioButton() && associateElement->name() == input->name()) {	1652	if (associateElement->isRadioButton() && associateElement->name() == input->name()) {
1653	if (AccessibilityObject* object = axObjectCache()->getOrCreate(associateElement->renderer()))	1653	if (AccessibilityObject* object = axObjectCache()->getOrCreate(associateElement))
1654	linkedUIElements.append(object);	1654	linkedUIElements.append(object);
1655	}	1655	}
1656	}	1656	}
Lines 1703-1709 void AccessibilityRenderObject::ariaFlow Source/WebCore/accessibility/AccessibilityRenderObject.cpp_sec6
1703	unsigned count = elements.size();	1703	unsigned count = elements.size();
1704	for (unsigned k = 0; k < count; ++k) {	1704	for (unsigned k = 0; k < count; ++k) {
1705	Element* element = elements[k];	1705	Element* element = elements[k];
1706	AccessibilityObject* flowToElement = cache->getOrCreate(element->renderer());	1706	AccessibilityObject* flowToElement = cache->getOrCreate(element);
1707	if (flowToElement)	1707	if (flowToElement)
1708	flowTo.append(flowToElement);	1708	flowTo.append(flowToElement);
1709	}	1709	}
Lines 1777-1783 AccessibilityObject* AccessibilityRender Source/WebCore/accessibility/AccessibilityRenderObject.cpp_sec7
1777	return 0;	1777	return 0;
1778	HTMLLabelElement* label = labelForElement(static_cast<Element*>(element));	1778	HTMLLabelElement* label = labelForElement(static_cast<Element*>(element));
1779	if (label && label->renderer())	1779	if (label && label->renderer())
1780	return axObjectCache()->getOrCreate(label->renderer());	1780	return axObjectCache()->getOrCreate(label);
1781		1781
1782	return 0;	1782	return 0;
1783	}	1783	}
Lines 2271-2277 bool AccessibilityRenderObject::isTabIte Source/WebCore/accessibility/AccessibilityRenderObject.cpp_sec8
2271	unsigned count = elements.size();	2271	unsigned count = elements.size();
2272	for (unsigned k = 0; k < count; ++k) {	2272	for (unsigned k = 0; k < count; ++k) {
2273	Element* element = elements[k];	2273	Element* element = elements[k];
2274	AccessibilityObject* tabPanel = axObjectCache()->getOrCreate(element->renderer());	2274	AccessibilityObject* tabPanel = axObjectCache()->getOrCreate(element);
2275		2275
2276	// A tab item should only control tab panels.	2276	// A tab item should only control tab panels.
2277	if (!tabPanel \|\| tabPanel->roleValue() != TabPanelRole)	2277	if (!tabPanel \|\| tabPanel->roleValue() != TabPanelRole)
Lines 2470-2476 AccessibilityObject* AccessibilityRender Source/WebCore/accessibility/AccessibilityRenderObject.cpp_sec9
2470	if (!imageElement)	2470	if (!imageElement)
2471	return 0;	2471	return 0;
2472		2472
2473	return axObjectCache()->getOrCreate(imageElement->renderer());	2473	return axObjectCache()->getOrCreate(imageElement);
2474	}	2474	}
2475		2475
2476	void AccessibilityRenderObject::getDocumentLinks(AccessibilityChildrenVector& result)	2476	void AccessibilityRenderObject::getDocumentLinks(AccessibilityChildrenVector& result)
Lines 2661-2667 bool AccessibilityRenderObject::nodeIsTe Source/WebCore/accessibility/AccessibilityRenderObject.cpp_sec10
2661	if (!node)	2661	if (!node)
2662	return false;	2662	return false;
2663		2663
2664	const AccessibilityObject* axObjectForNode = axObjectCache()->getOrCreate(node->renderer());	2664	const AccessibilityObject* axObjectForNode = axObjectCache()->getOrCreate(const_cast<Node*>(node));
2665	if (!axObjectForNode)	2665	if (!axObjectForNode)
2666	return false;	2666	return false;
2667		2667
Lines 2998-3004 AccessibilityObject* AccessibilityRender Source/WebCore/accessibility/AccessibilityRenderObject.cpp_sec11
2998	if (!target)	2998	if (!target)
2999	return 0;	2999	return 0;
3000		3000
3001	AccessibilityObject* obj = axObjectCache()->getOrCreate(target->renderer());	3001	AccessibilityObject* obj = axObjectCache()->getOrCreate(target);
3002	if (obj && obj->isAccessibilityRenderObject())	3002	if (obj && obj->isAccessibilityRenderObject())
3003	// an activedescendant is only useful if it has a renderer, because that's what's needed to post the notification	3003	// an activedescendant is only useful if it has a renderer, because that's what's needed to post the notification
3004	return obj;	3004	return obj;
Lines 3063-3069 AccessibilityObject* AccessibilityRender Source/WebCore/accessibility/AccessibilityRenderObject.cpp_sec12
3063	if (!correspondingControl)	3063	if (!correspondingControl)
3064	return 0;	3064	return 0;
3065		3065
3066	return axObjectCache()->getOrCreate(correspondingControl->renderer());	3066	return axObjectCache()->getOrCreate(correspondingControl);
3067	}	3067	}
3068		3068
3069	AccessibilityObject* AccessibilityRenderObject::correspondingLabelForControlElement() const	3069	AccessibilityObject* AccessibilityRenderObject::correspondingLabelForControlElement() const
Lines 3075-3081 AccessibilityObject* AccessibilityRender Source/WebCore/accessibility/AccessibilityRenderObject.cpp_sec13
3075	if (node && node->isHTMLElement()) {	3075	if (node && node->isHTMLElement()) {
3076	HTMLLabelElement* label = labelForElement(static_cast<Element*>(node));	3076	HTMLLabelElement* label = labelForElement(static_cast<Element*>(node));
3077	if (label)	3077	if (label)
3078	return axObjectCache()->getOrCreate(label->renderer());	3078	return axObjectCache()->getOrCreate(label);
3079	}	3079	}
3080		3080
3081	return 0;	3081	return 0;

Lines 160-166 AccessibilityObject* AccessibilityScroll Source/WebCore/accessibility/AccessibilityScrollView.cpp_sec1
- Source/WebCore/accessibility/AccessibilityScrollView.cpp -3 / +3 lines
160	if (!doc \|\| !doc->renderer())	160	if (!doc \|\| !doc->renderer())
161	return 0;	161	return 0;
162		162
163	return axObjectCache()->getOrCreate(doc->renderer());	163	return axObjectCache()->getOrCreate(doc);
164	}	164	}
165		165
166	AccessibilityObject* AccessibilityScrollView::accessibilityHitTest(const IntPoint& point) const	166	AccessibilityObject* AccessibilityScrollView::accessibilityHitTest(const IntPoint& point) const
Lines 197-203 AccessibilityObject* AccessibilityScroll Source/WebCore/accessibility/AccessibilityScrollView.cpp_sec2
197		197
198	HTMLFrameOwnerElement* owner = static_cast<FrameView*>(m_scrollView.get())->frame()->ownerElement();	198	HTMLFrameOwnerElement* owner = static_cast<FrameView*>(m_scrollView.get())->frame()->ownerElement();
199	if (owner && owner->renderer())	199	if (owner && owner->renderer())
200	return axObjectCache()->getOrCreate(owner->renderer());	200	return axObjectCache()->getOrCreate(owner);
201		201
202	return 0;	202	return 0;
203	}	203	}
Lines 209-215 AccessibilityObject* AccessibilityScroll Source/WebCore/accessibility/AccessibilityScrollView.cpp_sec3
209		209
210	HTMLFrameOwnerElement* owner = static_cast<FrameView*>(m_scrollView.get())->frame()->ownerElement();	210	HTMLFrameOwnerElement* owner = static_cast<FrameView*>(m_scrollView.get())->frame()->ownerElement();
211	if (owner && owner->renderer())	211	if (owner && owner->renderer())
212	return axObjectCache()->get(owner->renderer());	212	return axObjectCache()->get(owner);
213		213
214	return 0;	214	return 0;
215	}	215	}

Lines 80-86 void AXObjectCache::postPlatformNotifica Source/WebCore/accessibility/chromium/AXObjectCacheChromium.cpp_sec1
- Source/WebCore/accessibility/chromium/AXObjectCacheChromium.cpp -4 / +4 lines
80		80
81	// Calling handleFocusedUIElementChanged will focus the new active	81	// Calling handleFocusedUIElementChanged will focus the new active
82	// descendant and send the AXFocusedUIElementChanged notification.	82	// descendant and send the AXFocusedUIElementChanged notification.
83	handleFocusedUIElementChanged(0, obj->document()->focusedNode()->renderer());	83	handleFocusedUIElementChanged(0, obj->document()->focusedNode());
84	break;	84	break;
85	case AXAutocorrectionOccured:	85	case AXAutocorrectionOccured:
86	case AXCheckedStateChanged:	86	case AXCheckedStateChanged:
Lines 113-124 void AXObjectCache::frameLoadingEventPla Source/WebCore/accessibility/chromium/AXObjectCacheChromium.cpp_sec2
113	{	113	{
114	}	114	}
115		115
116	void AXObjectCache::handleFocusedUIElementChanged(RenderObject, RenderObject newFocusedRenderer)	116	void AXObjectCache::handleFocusedUIElementChanged(Node, Node newFocusedNode)
117	{	117	{
118	if (!newFocusedRenderer)	118	if (!newFocusedNode)
119	return;	119	return;
120		120
121	Page* page = newFocusedRenderer->document()->page();	121	Page* page = newFocusedNode->document()->page();
122	if (!page)	122	if (!page)
123	return;	123	return;
124		124

Lines 3854-3870 bool Document::setFocusedNode(PassRefPtr Source/WebCore/dom/Document.cpp_sec1
- Source/WebCore/dom/Document.cpp -11 / +2 lines
3854	}	3854	}
3855		3855
3856	#if PLATFORM(MAC) \|\| PLATFORM(WIN) \|\| PLATFORM(GTK) \|\| PLATFORM(CHROMIUM)	3856	#if PLATFORM(MAC) \|\| PLATFORM(WIN) \|\| PLATFORM(GTK) \|\| PLATFORM(CHROMIUM)
3857	if (!focusChangeBlocked && m_focusedNode && AXObjectCache::accessibilityEnabled()) {	3857	if (!focusChangeBlocked && m_focusedNode && AXObjectCache::accessibilityEnabled())
3858	RenderObject* oldFocusedRenderer = 0;	3858	axObjectCache()->handleFocusedUIElementChanged(oldFocusedNode.get(), newFocusedNode.get());
3859	RenderObject* newFocusedRenderer = 0;
3860
3861	if (oldFocusedNode)
3862	oldFocusedRenderer = oldFocusedNode->renderer();
3863	if (newFocusedNode)
3864	newFocusedRenderer = newFocusedNode->renderer();
3865
3866	axObjectCache()->handleFocusedUIElementChanged(oldFocusedRenderer, newFocusedRenderer);
3867	}
3868	#endif	3859	#endif
3869	if (!focusChangeBlocked)	3860	if (!focusChangeBlocked)
3870	page()->chrome()->focusedNodeChanged(m_focusedNode.get());	3861	page()->chrome()->focusedNodeChanged(m_focusedNode.get());

Lines 1-3 Source/WebCore/ChangeLog_sec1
- Source/WebCore/ChangeLog +124 lines
		1	2012-08-15 Dominic Mazzoni <dmazzoni@google.com>
		2
		3	AX: Calls to AXObjectCache should prefer Node over Renderer
		4	https://bugs.webkit.org/show_bug.cgi?id=91794
		5
		6	Reviewed by NOBODY (OOPS!).
		7
		8	Now that it's possible for nodes inside a canvas subtree to be focused and
		9	represent accessible content, accessibility notifications should be triggered
		10	with a Node* rather than with a RenderObject* whenever possible.
		11
		12	Every public API in AXObjectCache that took a RenderObject* before now either
		13	takes a Node* instead, or has a parallel method that takes a Node*.
		14
		15	Tests: accessibility/accessibility-node-memory-management.html
		16	accessibility/accessibility-node-reparent.html
		17	accessibility/canvas-fallback-content.html
		18
		19	* accessibility/AXObjectCache.cpp:
		20	(WebCore::AXObjectCache::focusedImageMapUIElement):
		21	(WebCore::AXObjectCache::focusedUIElementForPage):
		22	(WebCore::AXObjectCache::get):
		23	(WebCore::AXObjectCache::getOrCreate):
		24	(WebCore::AXObjectCache::contentChanged):
		25	(WebCore):
		26	(WebCore::AXObjectCache::updateCacheAfterNodeIsAttached):
		27	(WebCore::AXObjectCache::childrenChanged):
		28	(WebCore::AXObjectCache::postNotification):
		29	(WebCore::AXObjectCache::checkedStateChanged):
		30	(WebCore::AXObjectCache::selectedChildrenChanged):
		31	(WebCore::AXObjectCache::nodeTextChangeNotification):
		32	(WebCore::AXObjectCache::handleAriaExpandedChange):
		33	(WebCore::AXObjectCache::handleActiveDescendantChanged):
		34	(WebCore::AXObjectCache::handleAriaRoleChanged):
		35	(WebCore::AXObjectCache::textMarkerDataForVisiblePosition):
		36	(WebCore::AXObjectCache::rootAXEditableElement):
		37	(WebCore::AXObjectCache::nodeIsTextControl):
		38	* accessibility/AXObjectCache.h:
		39	(AXObjectCache):
		40	(WebCore::AXObjectCache::setNodeInUse):
		41	(WebCore::AXObjectCache::removeNodeForUse):
		42	(WebCore::AXObjectCache::isNodeInUse):
		43	(WebCore::AXObjectCache::checkedStateChanged):
		44	(WebCore::AXObjectCache::childrenChanged):
		45	(WebCore::AXObjectCache::contentChanged):
		46	(WebCore::AXObjectCache::updateCacheAfterNodeIsAttached):
		47	(WebCore::AXObjectCache::handleActiveDescendantChanged):
		48	(WebCore::AXObjectCache::handleAriaExpandedChange):
		49	(WebCore::AXObjectCache::handleAriaRoleChanged):
		50	(WebCore::AXObjectCache::handleFocusedUIElementChanged):
		51	(WebCore::AXObjectCache::nodeTextChangeNotification):
		52	(WebCore::AXObjectCache::postNotification):
		53	(WebCore::AXObjectCache::selectedChildrenChanged):
		54	* accessibility/AccessibilityListBoxOption.cpp:
		55	(WebCore::AccessibilityListBoxOption::parentObject):
		56	* accessibility/AccessibilityObject.cpp:
		57	(WebCore::appendAccessibilityObject):
		58	(WebCore::replacedNodeNeedsCharacter):
		59	* accessibility/AccessibilityRenderObject.cpp:
		60	(WebCore::AccessibilityRenderObject::menuForMenuButton):
		61	(WebCore::AccessibilityRenderObject::menuButtonForMenu):
		62	(WebCore::AccessibilityRenderObject::checkboxOrRadioRect):
		63	(WebCore::AccessibilityRenderObject::addRadioButtonGroupMembers):
		64	(WebCore::AccessibilityRenderObject::titleUIElement):
65	(WebCore::AccessibilityRenderObject::isTabItemSelected):
66	(WebCore::AccessibilityRenderObject::accessibilityParentForImageMap):
67	(WebCore::AccessibilityRenderObject::nodeIsTextControl):
68	(WebCore::AccessibilityRenderObject::activeDescendant):
69	(WebCore::AccessibilityRenderObject::correspondingControlForLabelElement):
70	(WebCore::AccessibilityRenderObject::correspondingLabelForControlElement):
71	* accessibility/AccessibilityRenderObject.h:
72	(AccessibilityRenderObject):
73	* accessibility/AccessibilityScrollView.cpp:
74	(WebCore::AccessibilityScrollView::webAreaObject):
75	(WebCore::AccessibilityScrollView::parentObject):
76	(WebCore::AccessibilityScrollView::parentObjectIfExists):
77	* accessibility/chromium/AXObjectCacheChromium.cpp:
78	(WebCore::AXObjectCache::postPlatformNotification):
79	(WebCore::AXObjectCache::handleFocusedUIElementChanged):
80	* accessibility/gtk/AXObjectCacheAtk.cpp:
81	(WebCore::AXObjectCache::handleFocusedUIElementChanged):
82	* accessibility/mac/AXObjectCacheMac.mm:
83	(WebCore::AXObjectCache::handleFocusedUIElementChanged):
84	* accessibility/win/AXObjectCacheWin.cpp:
85	(WebCore::AXObjectCache::handleFocusedUIElementChanged):
86	* bindings/cpp/WebDOMCustomVoidCallback.cpp:
87	(toWebCore):
88	* dom/Document.cpp:
89	(WebCore::Document::setFocusedNode):
90	* dom/Element.cpp:
91	(WebCore::Element::attributeChanged):
92	* dom/Node.cpp:
93	(WebCore::Node::~Node):
94	(WebCore::Node::attach):
95	* editing/AppendNodeCommand.cpp:
96	(WebCore::sendAXTextChangedIgnoringLineBreaks):
97	* editing/DeleteFromTextNodeCommand.cpp:
98	(WebCore::DeleteFromTextNodeCommand::doApply):
99	(WebCore::DeleteFromTextNodeCommand::doUnapply):
100	* editing/Editor.cpp:
101	(WebCore::Editor::respondToChangedContents):
102	(WebCore::Editor::markAndReplaceFor):
103	* editing/InsertIntoTextNodeCommand.cpp:
104	(WebCore::InsertIntoTextNodeCommand::doApply):
105	(WebCore::InsertIntoTextNodeCommand::doUnapply):
106	* editing/InsertNodeBeforeCommand.cpp:
107	(WebCore::InsertNodeBeforeCommand::doApply):
108	(WebCore::InsertNodeBeforeCommand::doUnapply):
109	* editing/chromium/FrameSelectionChromium.cpp:
110	(WebCore::FrameSelection::notifyAccessibilityForSelectionChange):
111	* html/HTMLInputElement.cpp:
112	(WebCore::HTMLInputElement::setChecked):
113	* html/HTMLSelectElement.cpp:
114	(WebCore::HTMLSelectElement::childrenChanged):
115	(WebCore::HTMLSelectElement::optionElementChildrenChanged):
116	* html/HTMLTextFormControlElement.cpp:
117	(WebCore::HTMLTextFormControlElement::setInnerTextValue):
118	* html/InputType.cpp:
119	(WebCore::InputType::applyStep):
120	* html/RangeInputType.cpp:
121	(WebCore::RangeInputType::handleKeydownEvent):
122	* page/FocusController.cpp:
123	(WebCore::FocusController::setInitialFocus):
124
1	2012-08-10 Arko Saha <arko@motorola.com>	125	2012-08-10 Arko Saha <arko@motorola.com>
2		126
3	REGRESSION(r125159): ASSERTION FAILED: m_listsInvalidatedAtDocument.contains(list) in Document::unregisterNodeListCache.	127	REGRESSION(r125159): ASSERTION FAILED: m_listsInvalidatedAtDocument.contains(list) in Document::unregisterNodeListCache.

Lines 112-118 AccessibilityObject* AXObjectCache::focu Source/WebCore/accessibility/AXObjectCache.cpp_sec1
- Source/WebCore/accessibility/AXObjectCache.cpp -56 / +85 lines
112	if (!imageElement)	112	if (!imageElement)
113	return 0;	113	return 0;
114		114
115	AccessibilityObject* axRenderImage = areaElement->document()->axObjectCache()->getOrCreate(imageElement->renderer());	115	AccessibilityObject* axRenderImage = areaElement->document()->axObjectCache()->getOrCreate(imageElement);
116	if (!axRenderImage)	116	if (!axRenderImage)
117	return 0;	117	return 0;
118		118
Lines 144-155 AccessibilityObject* AXObjectCache::focu Source/WebCore/accessibility/AXObjectCache.cpp_sec2
144	if (focusedNode->hasTagName(areaTag))	144	if (focusedNode->hasTagName(areaTag))
145	return focusedImageMapUIElement(static_cast<HTMLAreaElement*>(focusedNode));	145	return focusedImageMapUIElement(static_cast<HTMLAreaElement*>(focusedNode));
146		146
147	RenderObject* focusedNodeRenderer = focusedNode->renderer();	147	AccessibilityObject* obj = focusedNode->document()->axObjectCache()->getOrCreate(focusedNode);
148	if (!focusedNodeRenderer)	148	if (!obj)
149	return 0;	149	return 0;
150		150
151	AccessibilityObject* obj = focusedNodeRenderer->document()->axObjectCache()->getOrCreate(focusedNodeRenderer);
152
153	if (obj->shouldFocusActiveDescendant()) {	151	if (obj->shouldFocusActiveDescendant()) {
154	if (AccessibilityObject* descendant = obj->activeDescendant())	152	if (AccessibilityObject* descendant = obj->activeDescendant())
155	obj = descendant;	153	obj = descendant;
Lines 193-208 AccessibilityObject* AXObjectCache::get( Source/WebCore/accessibility/AXObjectCache.cpp_sec3
193	if (!node)	191	if (!node)
194	return 0;	192	return 0;
195		193
196	// Always prefer building the AccessibilityObject from the renderer if there is one.	194	AXID renderID = node->renderer() ? m_renderObjectMapping.get(node->renderer()) : 0;
197	if (node->renderer())	195	ASSERT(!HashTraits<AXID>::isDeletedValue(renderID));
198	return get(node->renderer());
199		196
200	AXID axID = m_nodeObjectMapping.get(node);	197	AXID nodeID = m_nodeObjectMapping.get(node);
201	ASSERT(!HashTraits<AXID>::isDeletedValue(axID));	198	ASSERT(!HashTraits<AXID>::isDeletedValue(nodeID));
202	if (!axID)	199
		200	if (node->renderer() && nodeID && !renderID) {
		201	// This can happen if an AccessibilityNodeObject is created for a node that's not
		202	// rendered, but later something changes and it gets a renderer (like if it's
		203	// reparented).
		204	remove(nodeID);
		205	return 0;
		206	}
		207
		208	if (renderID)
		209	return m_objects.get(renderID).get();
		210
		211	if (!nodeID)
203	return 0;	212	return 0;
204		213
205	return m_objects.get(axID).get();	214	return m_objects.get(nodeID).get();
206	}	215	}
207		216
208	// FIXME: This probably belongs on Node.	217	// FIXME: This probably belongs on Node.
Lines 512-535 void AXObjectCache::removeAXID(Accessibi Source/WebCore/accessibility/AXObjectCache.cpp_sec4
512	m_idsInUse.remove(objID);	521	m_idsInUse.remove(objID);
513	}	522	}
514		523
		524	void AXObjectCache::contentChanged(Node* node)
		525	{
		526	if (AccessibilityObject* object = getOrCreate(node))
		527	object->contentChanged();
		528	}
		529
515	void AXObjectCache::contentChanged(RenderObject* renderer)	530	void AXObjectCache::contentChanged(RenderObject* renderer)
516	{	531	{
517	AccessibilityObject* object = getOrCreate(renderer);	532	if (AccessibilityObject* object = getOrCreate(renderer))
518	if (object)
519	object->contentChanged();	533	object->contentChanged();
520	}	534	}
521		535
		536	void AXObjectCache::updateCacheAfterNodeIsAttached(Node* node)
		537	{
		538	// Calling get() will update the AX object if we had an AccessibilityNodeObject but now we need
		539	// an AccessibilityRenderObject, because it was reparented to a location outside of a canvas.
		540	get(node);
		541	}
		542
		543	void AXObjectCache::childrenChanged(Node* node)
		544	{
		545	if (AccessibilityObject* obj = get(node))
		546	obj->childrenChanged();
		547	}
		548
522	void AXObjectCache::childrenChanged(RenderObject* renderer)	549	void AXObjectCache::childrenChanged(RenderObject* renderer)
523	{	550	{
524	if (!renderer)	551	if (AccessibilityObject* obj = get(renderer))
525	return;
526
527	AXID axID = m_renderObjectMapping.get(renderer);
528	if (!axID)
529	return;
530
531	AccessibilityObject* obj = m_objects.get(axID).get();
532	if (obj)
533	obj->childrenChanged();	552	obj->childrenChanged();
534	}	553	}
535		554
Lines 559-566 void AXObjectCache::notificationPostTime Source/WebCore/accessibility/AXObjectCache.cpp_sec5
559		578
560	void AXObjectCache::postNotification(RenderObject* renderer, AXNotification notification, bool postToElement, PostType postType)	579	void AXObjectCache::postNotification(RenderObject* renderer, AXNotification notification, bool postToElement, PostType postType)
561	{	580	{
562	// Notifications for text input objects are sent to that object.
563	// All others are sent to the top WebArea.
564	if (!renderer)	581	if (!renderer)
565	return;	582	return;
566		583
Lines 578-583 void AXObjectCache::postNotification(Ren Source/WebCore/accessibility/AXObjectCache.cpp_sec6
578	postNotification(object.get(), renderer->document(), notification, postToElement, postType);	595	postNotification(object.get(), renderer->document(), notification, postToElement, postType);
579	}	596	}
580		597
		598	void AXObjectCache::postNotification(Node* node, AXNotification notification, bool postToElement, PostType postType)
		599	{
		600	if (!node)
		601	return;
		602
		603	// Get an accessibility object that already exists. One should not be created here
		604	// because a render update may be in progress and creating an AX object can re-trigger a layout
		605	RefPtr<AccessibilityObject> object = get(node);
		606	while (!object && node) {
		607	node = node->parentNode();
		608	object = get(node);
		609	}
		610
		611	if (!node)
		612	return;
		613
		614	postNotification(object.get(), node->document(), notification, postToElement, postType);
		615	}
		616
581	void AXObjectCache::postNotification(AccessibilityObject* object, Document* document, AXNotification notification, bool postToElement, PostType postType)	617	void AXObjectCache::postNotification(AccessibilityObject* object, Document* document, AXNotification notification, bool postToElement, PostType postType)
582	{	618	{
583	if (object && !postToElement)	619	if (object && !postToElement)
Lines 597-605 void AXObjectCache::postNotification(Acc Source/WebCore/accessibility/AXObjectCache.cpp_sec7
597	postPlatformNotification(object, notification);	633	postPlatformNotification(object, notification);
598	}	634	}
599		635
600	void AXObjectCache::checkedStateChanged(RenderObject* renderer)	636	void AXObjectCache::checkedStateChanged(Node* node)
601	{	637	{
602	postNotification(renderer, AXObjectCache::AXCheckedStateChanged, true);	638	postNotification(node, AXObjectCache::AXCheckedStateChanged, true);
		639	}
		640
		641	void AXObjectCache::selectedChildrenChanged(Node* node)
		642	{
		643	// postToElement is false so that you can pass in any child of an element and it will go up the parent tree
		644	// to find the container which should send out the notification.
		645	postNotification(node, AXSelectedChildrenChanged, false);
603	}	646	}
604		647
605	void AXObjectCache::selectedChildrenChanged(RenderObject* renderer)	648	void AXObjectCache::selectedChildrenChanged(RenderObject* renderer)
Lines 609-621 void AXObjectCache::selectedChildrenChan Source/WebCore/accessibility/AXObjectCache.cpp_sec8
609	postNotification(renderer, AXSelectedChildrenChanged, false);	652	postNotification(renderer, AXSelectedChildrenChanged, false);
610	}	653	}
611		654
612	void AXObjectCache::nodeTextChangeNotification(RenderObject* renderer, AXTextChange textChange, unsigned offset, const String& text)	655	void AXObjectCache::nodeTextChangeNotification(Node* node, AXTextChange textChange, unsigned offset, const String& text)
613	{	656	{
614	if (!renderer)	657	if (!node)
615	return;	658	return;
616		659
617	// Delegate on the right platform	660	// Delegate on the right platform
618	AccessibilityObject* obj = getOrCreate(renderer);	661	AccessibilityObject* obj = getOrCreate(node);
619	nodeTextChangePlatformNotification(obj, textChange, offset, text);	662	nodeTextChangePlatformNotification(obj, textChange, offset, text);
620	}	663	}
621		664
Lines 639-674 void AXObjectCache::handleScrollbarUpdat Source/WebCore/accessibility/AXObjectCache.cpp_sec9
639	return;	682	return;
640		683
641	// We don't want to create a scroll view from this method, only update an existing one.	684	// We don't want to create a scroll view from this method, only update an existing one.
642	AccessibilityObject* scrollViewObject = get(view);	685	if (AccessibilityObject* scrollViewObject = get(view))
643	if (scrollViewObject)
644	scrollViewObject->updateChildrenIfNecessary();	686	scrollViewObject->updateChildrenIfNecessary();
645	}	687	}
646		688
647	void AXObjectCache::handleAriaExpandedChange(RenderObject *renderer)	689	void AXObjectCache::handleAriaExpandedChange(Node* node)
648	{	690	{
649	if (!renderer)	691	if (AccessibilityObject* obj = getOrCreate(node))
650	return;
651	AccessibilityObject* obj = getOrCreate(renderer);
652	if (obj)
653	obj->handleAriaExpandedChanged();	692	obj->handleAriaExpandedChanged();
654	}	693	}
655		694
656	void AXObjectCache::handleActiveDescendantChanged(RenderObject* renderer)	695	void AXObjectCache::handleActiveDescendantChanged(Node* node)
657	{	696	{
658	if (!renderer)	697	if (AccessibilityObject* obj = getOrCreate(node))
659	return;
660	AccessibilityObject* obj = getOrCreate(renderer);
661	if (obj)
662	obj->handleActiveDescendantChanged();	698	obj->handleActiveDescendantChanged();
663	}	699	}
664		700
665	void AXObjectCache::handleAriaRoleChanged(RenderObject* renderer)	701	void AXObjectCache::handleAriaRoleChanged(Node* node)
666	{	702	{
667	if (!renderer)	703	if (AccessibilityObject* obj = getOrCreate(node))
668	return;	704	obj->updateAccessibilityRole();
669	AccessibilityObject* obj = getOrCreate(renderer);
670	if (obj && obj->isAccessibilityRenderObject())
671	static_cast<AccessibilityRenderObject*>(obj)->updateAccessibilityRole();
672	}	705	}
673		706
674	VisiblePosition AXObjectCache::visiblePositionForTextMarkerData(TextMarkerData& textMarkerData)	707	VisiblePosition AXObjectCache::visiblePositionForTextMarkerData(TextMarkerData& textMarkerData)
Lines 717-729 void AXObjectCache::textMarkerDataForVis Source/WebCore/accessibility/AXObjectCache.cpp_sec10
717	return;	750	return;
718	}	751	}
719		752
720	// locate the renderer, which must exist for a visible dom node	753	// find or create an accessibility object for this node
721	RenderObject* renderer = domNode->renderer();	754	AXObjectCache* cache = domNode->document()->axObjectCache();
722	ASSERT(renderer);	755	RefPtr<AccessibilityObject> obj = cache->getOrCreate(domNode);
723
724	// find or create an accessibility object for this renderer
725	AXObjectCache* cache = renderer->document()->axObjectCache();
726	RefPtr<AccessibilityObject> obj = cache->getOrCreate(renderer);
727		756
728	textMarkerData.axID = obj.get()->axObjectID();	757	textMarkerData.axID = obj.get()->axObjectID();
729	textMarkerData.node = domNode;	758	textMarkerData.node = domNode;
Lines 751-757 bool AXObjectCache::nodeIsTextControl(co Source/WebCore/accessibility/AXObjectCache.cpp_sec11
751	if (!node)	780	if (!node)
752	return false;	781	return false;
753		782
754	const AccessibilityObject* axObject = getOrCreate(node->renderer());	783	const AccessibilityObject* axObject = getOrCreate(const_cast<Node*>(node));
755	return axObject && axObject->isTextControl();	784	return axObject && axObject->isTextControl();
756	}	785	}
757		786

Lines 87-103 public: Source/WebCore/accessibility/AXObjectCache.h_sec1
- Source/WebCore/accessibility/AXObjectCache.h -18 / +29 lines
87		87
88	void detachWrapper(AccessibilityObject*);	88	void detachWrapper(AccessibilityObject*);
89	void attachWrapper(AccessibilityObject*);	89	void attachWrapper(AccessibilityObject*);
		90	void childrenChanged(Node*);
90	void childrenChanged(RenderObject*);	91	void childrenChanged(RenderObject*);
91	void checkedStateChanged(RenderObject*);	92	void checkedStateChanged(Node*);
		93	void selectedChildrenChanged(Node*);
92	void selectedChildrenChanged(RenderObject*);	94	void selectedChildrenChanged(RenderObject*);
93	// Called by a node when text or a text equivalent (e.g. alt) attribute is changed.	95	// Called by a node when text or a text equivalent (e.g. alt) attribute is changed.
		96	void contentChanged(Node*);
94	void contentChanged(RenderObject*);	97	void contentChanged(RenderObject*);
95		98	// Called when a node has just been attached, so we can make sure we have the right subclass of AccessibilityObject.
96	void handleActiveDescendantChanged(RenderObject*);	99	void updateCacheAfterNodeIsAttached(Node*);
97	void handleAriaRoleChanged(RenderObject*);	100
98	void handleFocusedUIElementChanged(RenderObject* oldFocusedRenderer, RenderObject* newFocusedRenderer);	101	void handleActiveDescendantChanged(Node*);
		102	void handleAriaRoleChanged(Node*);
		103	void handleFocusedUIElementChanged(Node* oldFocusedNode, Node* newFocusedNode);
99	void handleScrolledToAnchor(const Node* anchorNode);	104	void handleScrolledToAnchor(const Node* anchorNode);
100	void handleAriaExpandedChange(RenderObject*);	105	void handleAriaExpandedChange(Node*);
101	void handleScrollbarUpdate(ScrollView*);	106	void handleScrollbarUpdate(ScrollView*);
102		107
103	#if HAVE(ACCESSIBILITY)	108	#if HAVE(ACCESSIBILITY)
Lines 124-134 public: Source/WebCore/accessibility/AXObjectCache.h_sec2
124	AXID platformGenerateAXID() const;	129	AXID platformGenerateAXID() const;
125	AccessibilityObject* objectFromAXID(AXID id) const { return m_objects.get(id).get(); }	130	AccessibilityObject* objectFromAXID(AXID id) const { return m_objects.get(id).get(); }
126		131
127	// This is a weak reference cache for knowing if Nodes used by TextMarkers are valid.
128	void setNodeInUse(Node* n) { m_textMarkerNodes.add(n); }
129	void removeNodeForUse(Node* n) { m_textMarkerNodes.remove(n); }
130	bool isNodeInUse(Node* n) { return m_textMarkerNodes.contains(n); }
131
132	// Text marker utilities.	132	// Text marker utilities.
133	void textMarkerDataForVisiblePosition(TextMarkerData&, const VisiblePosition&);	133	void textMarkerDataForVisiblePosition(TextMarkerData&, const VisiblePosition&);
134	VisiblePosition visiblePositionForTextMarkerData(TextMarkerData&);	134	VisiblePosition visiblePositionForTextMarkerData(TextMarkerData&);
Lines 155-160 public: Source/WebCore/accessibility/AXObjectCache.h_sec3
155	};	155	};
156		156
157	void postNotification(RenderObject*, AXNotification, bool postToElement, PostType = PostAsynchronously);	157	void postNotification(RenderObject*, AXNotification, bool postToElement, PostType = PostAsynchronously);
		158	void postNotification(Node*, AXNotification, bool postToElement, PostType = PostAsynchronously);
158	void postNotification(AccessibilityObject, Document, AXNotification, bool postToElement, PostType = PostAsynchronously);	159	void postNotification(AccessibilityObject, Document, AXNotification, bool postToElement, PostType = PostAsynchronously);
159		160
160	enum AXTextChange {	161	enum AXTextChange {
Lines 162-168 public: Source/WebCore/accessibility/AXObjectCache.h_sec4
162	AXTextDeleted,	163	AXTextDeleted,
163	};	164	};
164		165
165	void nodeTextChangeNotification(RenderObject*, AXTextChange, unsigned offset, const String&);	166	void nodeTextChangeNotification(Node*, AXTextChange, unsigned offset, const String&);
166		167
167	enum AXLoadingEvent {	168	enum AXLoadingEvent {
168	AXLoadingStarted,	169	AXLoadingStarted,
Lines 180-185 protected: Source/WebCore/accessibility/AXObjectCache.h_sec5
180	void nodeTextChangePlatformNotification(AccessibilityObject*, AXTextChange, unsigned offset, const String&);	181	void nodeTextChangePlatformNotification(AccessibilityObject*, AXTextChange, unsigned offset, const String&);
181	void frameLoadingEventPlatformNotification(AccessibilityObject*, AXLoadingEvent);	182	void frameLoadingEventPlatformNotification(AccessibilityObject*, AXLoadingEvent);
182		183
		184	// This is a weak reference cache for knowing if Nodes used by TextMarkers are valid.
		185	void setNodeInUse(Node* n) { m_textMarkerNodes.add(n); }
		186	void removeNodeForUse(Node* n) { m_textMarkerNodes.remove(n); }
		187	bool isNodeInUse(Node* n) { return m_textMarkerNodes.contains(n); }
		188
183	private:	189	private:
184	Document* m_document;	190	Document* m_document;
185	HashMap<AXID, RefPtr<AccessibilityObject> > m_objects;	191	HashMap<AXID, RefPtr<AccessibilityObject> > m_objects;
Lines 220-247 inline Element* AXObjectCache::rootAXEdi Source/WebCore/accessibility/AXObjectCache.h_sec6
220	inline bool nodeHasRole(Node*, const String&) { return false; }	226	inline bool nodeHasRole(Node*, const String&) { return false; }
221	inline const Element* AXObjectCache::rootAXEditableElement(const Node*) { return 0; }	227	inline const Element* AXObjectCache::rootAXEditableElement(const Node*) { return 0; }
222	inline void AXObjectCache::attachWrapper(AccessibilityObject*) { }	228	inline void AXObjectCache::attachWrapper(AccessibilityObject*) { }
223	inline void AXObjectCache::checkedStateChanged(RenderObject*) { }	229	inline void AXObjectCache::checkedStateChanged(Node*) { }
224	inline void AXObjectCache::childrenChanged(RenderObject*) { }	230	inline void AXObjectCache::childrenChanged(RenderObject*) { }
		231	inline void AXObjectCache::childrenChanged(Node*) { }
225	inline void AXObjectCache::contentChanged(RenderObject*) { }	232	inline void AXObjectCache::contentChanged(RenderObject*) { }
		233	inline void AXObjectCache::contentChanged(Node*) { }
		234	inline void AXObjectCache::updateCacheAfterNodeIsAttached(Node*) { }
226	inline void AXObjectCache::detachWrapper(AccessibilityObject*) { }	235	inline void AXObjectCache::detachWrapper(AccessibilityObject*) { }
227	inline void AXObjectCache::frameLoadingEventNotification(Frame*, AXLoadingEvent) { }	236	inline void AXObjectCache::frameLoadingEventNotification(Frame*, AXLoadingEvent) { }
228	inline void AXObjectCache::frameLoadingEventPlatformNotification(AccessibilityObject*, AXLoadingEvent) { }	237	inline void AXObjectCache::frameLoadingEventPlatformNotification(AccessibilityObject*, AXLoadingEvent) { }
229	inline void AXObjectCache::handleActiveDescendantChanged(RenderObject*) { }	238	inline void AXObjectCache::handleActiveDescendantChanged(Node*) { }
230	inline void AXObjectCache::handleAriaExpandedChange(RenderObject*) { }	239	inline void AXObjectCache::handleAriaExpandedChange(Node*) { }
231	inline void AXObjectCache::handleAriaRoleChanged(RenderObject*) { }	240	inline void AXObjectCache::handleAriaRoleChanged(Node*) { }
232	inline void AXObjectCache::handleFocusedUIElementChanged(RenderObject, RenderObject) { }	241	inline void AXObjectCache::handleFocusedUIElementChanged(Node, Node) { }
233	inline void AXObjectCache::handleScrollbarUpdate(ScrollView*) { }	242	inline void AXObjectCache::handleScrollbarUpdate(ScrollView*) { }
234	inline void AXObjectCache::handleScrolledToAnchor(const Node*) { }	243	inline void AXObjectCache::handleScrolledToAnchor(const Node*) { }
235	inline void AXObjectCache::nodeTextChangeNotification(RenderObject*, AXTextChange, unsigned, const String&) { }	244	inline void AXObjectCache::nodeTextChangeNotification(Node*, AXTextChange, unsigned, const String&) { }
236	inline void AXObjectCache::nodeTextChangePlatformNotification(AccessibilityObject*, AXTextChange, unsigned, const String&) { }	245	inline void AXObjectCache::nodeTextChangePlatformNotification(AccessibilityObject*, AXTextChange, unsigned, const String&) { }
237	inline void AXObjectCache::postNotification(AccessibilityObject, Document, AXNotification, bool postToElement, PostType) { }	246	inline void AXObjectCache::postNotification(AccessibilityObject, Document, AXNotification, bool postToElement, PostType) { }
238	inline void AXObjectCache::postNotification(RenderObject*, AXNotification, bool postToElement, PostType) { }	247	inline void AXObjectCache::postNotification(RenderObject*, AXNotification, bool postToElement, PostType) { }
		248	inline void AXObjectCache::postNotification(Node*, AXNotification, bool postToElement, PostType) { }
239	inline void AXObjectCache::postPlatformNotification(AccessibilityObject*, AXNotification) { }	249	inline void AXObjectCache::postPlatformNotification(AccessibilityObject*, AXNotification) { }
240	inline void AXObjectCache::remove(AXID) { }	250	inline void AXObjectCache::remove(AXID) { }
241	inline void AXObjectCache::remove(RenderObject*) { }	251	inline void AXObjectCache::remove(RenderObject*) { }
242	inline void AXObjectCache::remove(Node*) { }	252	inline void AXObjectCache::remove(Node*) { }
243	inline void AXObjectCache::remove(Widget*) { }	253	inline void AXObjectCache::remove(Widget*) { }
244	inline void AXObjectCache::selectedChildrenChanged(RenderObject*) { }	254	inline void AXObjectCache::selectedChildrenChanged(RenderObject*) { }
		255	inline void AXObjectCache::selectedChildrenChanged(Node*) { }
245	#endif	256	#endif
246		257
247	}	258	}

Lines 238-251 void AXObjectCache::frameLoadingEventPla Source/WebCore/accessibility/gtk/AXObjectCacheAtk.cpp_sec1
- Source/WebCore/accessibility/gtk/AXObjectCacheAtk.cpp -3 / +3 lines
238	}	238	}
239	}	239	}
240		240
241	void AXObjectCache::handleFocusedUIElementChanged(RenderObject* oldFocusedRender, RenderObject* newFocusedRender)	241	void AXObjectCache::handleFocusedUIElementChanged(Node* oldFocusedNode, Node* newFocusedNode)
242	{	242	{
243	RefPtr<AccessibilityObject> oldObject = getOrCreate(oldFocusedRender);	243	RefPtr<AccessibilityObject> oldObject = getOrCreate(oldFocusedNode);
244	if (oldObject) {	244	if (oldObject) {
245	g_signal_emit_by_name(oldObject->wrapper(), "focus-event", false);	245	g_signal_emit_by_name(oldObject->wrapper(), "focus-event", false);
246	g_signal_emit_by_name(oldObject->wrapper(), "state-change", "focused", false);	246	g_signal_emit_by_name(oldObject->wrapper(), "state-change", "focused", false);
247	}	247	}
248	RefPtr<AccessibilityObject> newObject = getOrCreate(newFocusedRender);	248	RefPtr<AccessibilityObject> newObject = getOrCreate(newFocusedNode);
249	if (newObject) {	249	if (newObject) {
250	g_signal_emit_by_name(newObject->wrapper(), "focus-event", true);	250	g_signal_emit_by_name(newObject->wrapper(), "focus-event", true);
251	g_signal_emit_by_name(newObject->wrapper(), "state-change", "focused", true);	251	g_signal_emit_by_name(newObject->wrapper(), "state-change", "focused", true);

Lines 134-145 AXID AXObjectCache::platformGenerateAXID Source/WebCore/accessibility/win/AXObjectCacheWin.cpp_sec1
- Source/WebCore/accessibility/win/AXObjectCacheWin.cpp -3 / +3 lines
134	return objID;	134	return objID;
135	}	135	}
136		136
137	void AXObjectCache::handleFocusedUIElementChanged(RenderObject, RenderObject newFocusedRenderer)	137	void AXObjectCache::handleFocusedUIElementChanged(Node, Node newFocusedNode)
138	{	138	{
139	if (!newFocusedRenderer)	139	if (!newFocusedNode)
140	return;	140	return;
141		141
142	Page* page = newFocusedRenderer->document()->page();	142	Page* page = newFocusedNode->document()->page();
143	if (!page \|\| !page->chrome()->platformPageClient())	143	if (!page \|\| !page->chrome()->platformPageClient())
144	return;	144	return;
145		145

Lines 724-749 void Element::attributeChanged(const Att Source/WebCore/dom/Element.cpp_sec1
- Source/WebCore/dom/Element.cpp -9 / +9 lines
724	const QualifiedName& attrName = attribute.name();	724	const QualifiedName& attrName = attribute.name();
725	if (attrName == aria_activedescendantAttr) {	725	if (attrName == aria_activedescendantAttr) {
726	// any change to aria-activedescendant attribute triggers accessibility focus change, but document focus remains intact	726	// any change to aria-activedescendant attribute triggers accessibility focus change, but document focus remains intact
727	document()->axObjectCache()->handleActiveDescendantChanged(renderer());	727	document()->axObjectCache()->handleActiveDescendantChanged(this);
728	} else if (attrName == roleAttr) {	728	} else if (attrName == roleAttr) {
729	// the role attribute can change at any time, and the AccessibilityObject must pick up these changes	729	// the role attribute can change at any time, and the AccessibilityObject must pick up these changes
730	document()->axObjectCache()->handleAriaRoleChanged(renderer());	730	document()->axObjectCache()->handleAriaRoleChanged(this);
731	} else if (attrName == aria_valuenowAttr) {	731	} else if (attrName == aria_valuenowAttr) {
732	// If the valuenow attribute changes, AX clients need to be notified.	732	// If the valuenow attribute changes, AX clients need to be notified.
733	document()->axObjectCache()->postNotification(renderer(), AXObjectCache::AXValueChanged, true);	733	document()->axObjectCache()->postNotification(this, AXObjectCache::AXValueChanged, true);
734	} else if (attrName == aria_labelAttr \|\| attrName == aria_labeledbyAttr \|\| attrName == altAttr \|\| attrName == titleAttr) {	734	} else if (attrName == aria_labelAttr \|\| attrName == aria_labeledbyAttr \|\| attrName == altAttr \|\| attrName == titleAttr) {
735	// If the content of an element changes due to an attribute change, notify accessibility.	735	// If the content of an element changes due to an attribute change, notify accessibility.
736	document()->axObjectCache()->contentChanged(renderer());	736	document()->axObjectCache()->contentChanged(this);
737	} else if (attrName == aria_checkedAttr)	737	} else if (attrName == aria_checkedAttr)
738	document()->axObjectCache()->checkedStateChanged(renderer());	738	document()->axObjectCache()->checkedStateChanged(this);
739	else if (attrName == aria_selectedAttr)	739	else if (attrName == aria_selectedAttr)
740	document()->axObjectCache()->selectedChildrenChanged(renderer());	740	document()->axObjectCache()->selectedChildrenChanged(this);
741	else if (attrName == aria_expandedAttr)	741	else if (attrName == aria_expandedAttr)
742	document()->axObjectCache()->handleAriaExpandedChange(renderer());	742	document()->axObjectCache()->handleAriaExpandedChange(this);
743	else if (attrName == aria_hiddenAttr)	743	else if (attrName == aria_hiddenAttr)
744	document()->axObjectCache()->childrenChanged(renderer());	744	document()->axObjectCache()->childrenChanged(this);
745	else if (attrName == aria_invalidAttr)	745	else if (attrName == aria_invalidAttr)
746	document()->axObjectCache()->postNotification(renderer(), AXObjectCache::AXInvalidStatusChanged, true);	746	document()->axObjectCache()->postNotification(this, AXObjectCache::AXInvalidStatusChanged, true);
747	}	747	}
748		748
749	// Returns true is the given attribute is an event handler.	749	// Returns true is the given attribute is an event handler.

Lines 57-63 void DeleteFromTextNodeCommand::doApply( Source/WebCore/editing/DeleteFromTextNodeCommand.cpp_sec1
- Source/WebCore/editing/DeleteFromTextNodeCommand.cpp -2 / +2 lines
57		57
58	// Need to notify this before actually deleting the text	58	// Need to notify this before actually deleting the text
59	if (AXObjectCache::accessibilityEnabled())	59	if (AXObjectCache::accessibilityEnabled())
60	document()->axObjectCache()->nodeTextChangeNotification(m_node->renderer(), AXObjectCache::AXTextDeleted, m_offset, m_text);	60	document()->axObjectCache()->nodeTextChangeNotification(m_node.get(), AXObjectCache::AXTextDeleted, m_offset, m_text);
61		61
62	m_node->deleteData(m_offset, m_count, ec);	62	m_node->deleteData(m_offset, m_count, ec);
63	}	63	}
Lines 73-79 void DeleteFromTextNodeCommand::doUnappl Source/WebCore/editing/DeleteFromTextNodeCommand.cpp_sec2
73	m_node->insertData(m_offset, m_text, ec);	73	m_node->insertData(m_offset, m_text, ec);
74		74
75	if (AXObjectCache::accessibilityEnabled())	75	if (AXObjectCache::accessibilityEnabled())
76	document()->axObjectCache()->nodeTextChangeNotification(m_node->renderer(), AXObjectCache::AXTextInserted, m_offset, m_text);	76	document()->axObjectCache()->nodeTextChangeNotification(m_node.get(), AXObjectCache::AXTextInserted, m_offset, m_text);
77	}	77	}
78		78
79	#ifndef NDEBUG	79	#ifndef NDEBUG

Lines 494-500 void Editor::respondToChangedContents(co Source/WebCore/editing/Editor.cpp_sec1
- Source/WebCore/editing/Editor.cpp -2 / +2 lines
494	if (AXObjectCache::accessibilityEnabled()) {	494	if (AXObjectCache::accessibilityEnabled()) {
495	Node* node = endingSelection.start().deprecatedNode();	495	Node* node = endingSelection.start().deprecatedNode();
496	if (node)	496	if (node)
497	m_frame->document()->axObjectCache()->postNotification(node->renderer(), AXObjectCache::AXValueChanged, false);	497	m_frame->document()->axObjectCache()->postNotification(node, AXObjectCache::AXValueChanged, false);
498	}	498	}
499		499
500	updateMarkersForWordsAffectedByEditing(true);	500	updateMarkersForWordsAffectedByEditing(true);
Lines 2130-2136 void Editor::markAndReplaceFor(PassRefPt Source/WebCore/editing/Editor.cpp_sec2
2130		2130
2131	if (AXObjectCache::accessibilityEnabled()) {	2131	if (AXObjectCache::accessibilityEnabled()) {
2132	if (Element* root = m_frame->selection()->selection().rootEditableElement())	2132	if (Element* root = m_frame->selection()->selection().rootEditableElement())
2133	m_frame->document()->axObjectCache()->postNotification(root->renderer(), AXObjectCache::AXAutocorrectionOccured, true);	2133	m_frame->document()->axObjectCache()->postNotification(root, AXObjectCache::AXAutocorrectionOccured, true);
2134	}	2134	}
2135		2135
2136	selectionChanged = true;	2136	selectionChanged = true;

Lines 60-66 void InsertIntoTextNodeCommand::doApply( Source/WebCore/editing/InsertIntoTextNodeCommand.cpp_sec1
- Source/WebCore/editing/InsertIntoTextNodeCommand.cpp -2 / +2 lines
60	m_node->insertData(m_offset, m_text, ec);	60	m_node->insertData(m_offset, m_text, ec);
61		61
62	if (AXObjectCache::accessibilityEnabled())	62	if (AXObjectCache::accessibilityEnabled())
63	document()->axObjectCache()->nodeTextChangeNotification(m_node->renderer(), AXObjectCache::AXTextInserted, m_offset, m_text);	63	document()->axObjectCache()->nodeTextChangeNotification(m_node.get(), AXObjectCache::AXTextInserted, m_offset, m_text);
64	}	64	}
65		65
66	void InsertIntoTextNodeCommand::doUnapply()	66	void InsertIntoTextNodeCommand::doUnapply()
Lines 70-76 void InsertIntoTextNodeCommand::doUnappl Source/WebCore/editing/InsertIntoTextNodeCommand.cpp_sec2
70		70
71	// Need to notify this before actually deleting the text	71	// Need to notify this before actually deleting the text
72	if (AXObjectCache::accessibilityEnabled())	72	if (AXObjectCache::accessibilityEnabled())
73	document()->axObjectCache()->nodeTextChangeNotification(m_node->renderer(), AXObjectCache::AXTextDeleted, m_offset, m_text);	73	document()->axObjectCache()->nodeTextChangeNotification(m_node.get(), AXObjectCache::AXTextDeleted, m_offset, m_text);
74		74
75	ExceptionCode ec;	75	ExceptionCode ec;
76	m_node->deleteData(m_offset, m_text.length(), ec);	76	m_node->deleteData(m_offset, m_text.length(), ec);

Lines 55-61 void InsertNodeBeforeCommand::doApply() Source/WebCore/editing/InsertNodeBeforeCommand.cpp_sec1
- Source/WebCore/editing/InsertNodeBeforeCommand.cpp -2 / +2 lines
55	parent->insertBefore(m_insertChild.get(), m_refChild.get(), ec);	55	parent->insertBefore(m_insertChild.get(), m_refChild.get(), ec);
56		56
57	if (AXObjectCache::accessibilityEnabled())	57	if (AXObjectCache::accessibilityEnabled())
58	document()->axObjectCache()->nodeTextChangeNotification(m_insertChild->renderer(), AXObjectCache::AXTextInserted, 0, m_insertChild->nodeValue());	58	document()->axObjectCache()->nodeTextChangeNotification(m_insertChild.get(), AXObjectCache::AXTextInserted, 0, m_insertChild->nodeValue());
59	}	59	}
60		60
61	void InsertNodeBeforeCommand::doUnapply()	61	void InsertNodeBeforeCommand::doUnapply()
Lines 65-71 void InsertNodeBeforeCommand::doUnapply( Source/WebCore/editing/InsertNodeBeforeCommand.cpp_sec2
65		65
66	// Need to notify this before actually deleting the text	66	// Need to notify this before actually deleting the text
67	if (AXObjectCache::accessibilityEnabled())	67	if (AXObjectCache::accessibilityEnabled())
68	document()->axObjectCache()->nodeTextChangeNotification(m_insertChild->renderer(), AXObjectCache::AXTextDeleted, 0, m_insertChild->nodeValue());	68	document()->axObjectCache()->nodeTextChangeNotification(m_insertChild.get(), AXObjectCache::AXTextDeleted, 0, m_insertChild->nodeValue());
69		69
70	ExceptionCode ec;	70	ExceptionCode ec;
71	m_insertChild->remove(ec);	71	m_insertChild->remove(ec);

Lines 378-384 void HTMLSelectElement::childrenChanged( Source/WebCore/html/HTMLSelectElement.cpp_sec1
- Source/WebCore/html/HTMLSelectElement.cpp -2 / +2 lines
378	HTMLFormControlElementWithState::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);	378	HTMLFormControlElementWithState::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
379		379
380	if (AXObjectCache::accessibilityEnabled() && renderer())	380	if (AXObjectCache::accessibilityEnabled() && renderer())
381	renderer()->document()->axObjectCache()->childrenChanged(renderer());	381	renderer()->document()->axObjectCache()->childrenChanged(this);
382	}	382	}
383		383
384	void HTMLSelectElement::optionElementChildrenChanged()	384	void HTMLSelectElement::optionElementChildrenChanged()
Lines 387-393 void HTMLSelectElement::optionElementChi Source/WebCore/html/HTMLSelectElement.cpp_sec2
387	setNeedsValidityCheck();	387	setNeedsValidityCheck();
388		388
389	if (AXObjectCache::accessibilityEnabled() && renderer())	389	if (AXObjectCache::accessibilityEnabled() && renderer())
390	renderer()->document()->axObjectCache()->childrenChanged(renderer());	390	renderer()->document()->axObjectCache()->childrenChanged(this);
391	}	391	}
392		392
393	void HTMLSelectElement::accessKeyAction(bool sendMouseEvents)	393	void HTMLSelectElement::accessKeyAction(bool sendMouseEvents)

Lines 1-3 LayoutTests/ChangeLog_sec1
- LayoutTests/ChangeLog +25 lines
		1	2012-08-15 Dominic Mazzoni <dmazzoni@google.com>
		2
		3	AX: Calls to AXObjectCache should prefer Node over Renderer
		4	https://bugs.webkit.org/show_bug.cgi?id=91794
		5
		6	Reviewed by NOBODY (OOPS!).
		7
		8	New tests:
		9	- canvas-fallback-content tests that objects in a canvas subtree can be
		10	focused and then you can retrieve the role of the accessible object.
		11	- accessibility-node-memory-management ensures that an AccessibilityNodeObject
		12	is detached when its node is destroyed.
		13	- accessibility-node-reparent ensures that if an AccessibilityNodeObject is
		14	created for a node without a renderer, but the node later gets a renderer,
		15	the AccessibilityNodeObject is detached and an AccessibilityRenderObject is
		16	created instead.
		17
		18	* accessibility/accessibility-node-memory-management-expected.txt: Added.
		19	* accessibility/accessibility-node-memory-management.html: Added.
		20	* accessibility/accessibility-node-reparent-expected.txt: Added.
		21	* accessibility/accessibility-node-reparent.html: Added.
		22	* accessibility/canvas-fallback-content-expected.txt: Added.
		23	* accessibility/canvas-fallback-content.html: Added.
		24	* platform/gtk/TestExpectations:
		25
1	2012-08-10 Arko Saha <arko@motorola.com>	26	2012-08-10 Arko Saha <arko@motorola.com>
2		27
3	REGRESSION(r125159): ASSERTION FAILED: m_listsInvalidatedAtDocument.contains(list) in Document::unregisterNodeListCache.	28	REGRESSION(r125159): ASSERTION FAILED: m_listsInvalidatedAtDocument.contains(list) in Document::unregisterNodeListCache.

Line 0 LayoutTests/accessibility/accessibility-node-memory-management-expected.txt_sec1
- LayoutTests/accessibility/accessibility-node-memory-management-expected.txt +12 lines
		1	This test makes sure that AccessibilityNodeObjects are properly detached when the node they point to is deleted.
		2
		3	On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
		4
		5
		6	PASS expectedButtonRole != expectedDetachedRole is true
		7	PASS canvasButtonRole is expectedButtonRole
		8	PASS detachedCanvasButtonRole is expectedDetachedRole
		9	PASS successfullyParsed is true
		10
		11	TEST COMPLETE
		12
0	+ LF	13	+ LF

Line 0 LayoutTests/accessibility/accessibility-node-memory-management.html_sec1
- LayoutTests/accessibility/accessibility-node-memory-management.html +60 lines
		1	<!DOCTYPE HTML>
		2	<html>
		3	<body>
		4	<script src="../fast/js/resources/js-test-pre.js"></script>
		5
		6	<canvas id="canvas" tabindex="-1"></canvas>
		7
		8	<div id="console"></div>
		9	<script>
		10	description("This test makes sure that AccessibilityNodeObjects are properly detached when the node they point to is deleted.");
		11
		12	if (window.testRunner && window.accessibilityController) {
		13	window.testRunner.dumpAsText();
		14
		15	// Create an ordinary button on the page, focus it and get its accessibility role.
		16	var button = document.createElement('button');
		17	document.body.appendChild(button);
		18	button.focus();
		19	window.axElement = accessibilityController.focusedElement;
		20	window.expectedButtonRole = axElement.role;
		21
		22	// Now remove the node from the tree and get the role of the detached accessibility object.
		23	document.body.removeChild(button);
		24	window.expectedDetachedRole = axElement.role;
		25	shouldBeTrue("expectedButtonRole != expectedDetachedRole");
		26
		27	// This time create a button that's a child of a canvas element. It will be focusable but not rendered.
		28	// In particular, this will create an AccessibilityNodeObject rather than an AccessibilityRenderObject.
		29	var canvas = document.getElementById('canvas');
		30	(function() {
		31	var button = document.createElement('button');
		32	canvas.appendChild(button);
		33
		34	// Note: focusing the button and using that to get its accessibility object creates an extra
		35	// reference to the button and it won't get deleted when we want it to. So instead we focus the
		36	// canvas and get its first child.
		37	canvas.focus();
		38	window.axElement = accessibilityController.focusedElement.childAtIndex(0);
		39
		40	window.canvasButtonRole = axElement.role;
		41	shouldBe("canvasButtonRole", "expectedButtonRole");
		42
		43	// Now delete the node.
		44	canvas.removeChild(button);
		45	})();
		46
		47	// Explicitly run garbage collection now; since there are no more references to the button,
		48	// the node will be destroyed.
		49	gc();
		50
		51	// Ensure that the accessibility object is detached by checking its role.
		52	window.detachedCanvasButtonRole = axElement.role;
		53	shouldBe("detachedCanvasButtonRole", "expectedDetachedRole");
		54	}
		55
		56	</script>
		57
		58	<script src="../fast/js/resources/js-test-post.js"></script>
		59	</body>
		60	</html>
0	+ text/html	61	+ text/html
1	+ LF	62	+ LF

Line 0 LayoutTests/accessibility/canvas-fallback-content-expected.txt_sec1
- LayoutTests/accessibility/canvas-fallback-content-expected.txt +101 lines
		1	Link Button
		2	Focusable
		3	ARIA button
		4	ARIA link
		5	This test makes sure that focusable elements in canvas fallback content are accessible.
		6
		7	On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
		8
		9
		10	link1
		11	PASS document.activeElement == element is true
		12	PASS axElement.role is "AXRole: AXLink"
		13
		14	button1
		15	PASS document.activeElement == element is true
		16	PASS axElement.role is "AXRole: AXButton"
		17
		18	text1
		19	PASS document.activeElement == element is true
		20	PASS axElement.role is "AXRole: AXTextField"
		21
		22	checkbox1
		23	PASS document.activeElement == element is true
		24	PASS axElement.role is "AXRole: AXCheckBox"
		25
		26	radio1
		27	PASS document.activeElement == element is true
		28	PASS axElement.role is "AXRole: AXRadioButton"
		29
		30	submit1
		31	PASS document.activeElement == element is true
		32	PASS axElement.role is "AXRole: AXButton"
		33
		34	combobox1
		35	PASS document.activeElement == element is true
		36	PASS axElement.role is "AXRole: AXPopUpButton"
		37
		38	focusable1
		39	PASS document.activeElement == element is true
		40	PASS axElement.role is "AXRole: AXGroup"
		41
		42	aria-button1
		43	PASS document.activeElement == element is true
		44	PASS axElement.role is "AXRole: AXButton"
		45
		46	aria-link1
		47	PASS document.activeElement == element is true
		48	PASS axElement.role is "AXRole: AXLink"
		49
		50	link2
		51	PASS document.activeElement == element is true
		52	PASS axElement.role is "AXRole: AXLink"
		53
		54	button2
		55	PASS document.activeElement == element is true
		56	PASS axElement.role is "AXRole: AXButton"
		57
		58	text2
		59	PASS document.activeElement == element is true
		60	PASS axElement.role is "AXRole: AXTextField"
		61
		62	checkbox2
		63	PASS document.activeElement == element is true
		64	PASS axElement.role is "AXRole: AXCheckBox"
65
66	radio2
67	PASS document.activeElement == element is true
68	PASS axElement.role is "AXRole: AXRadioButton"
69
70	submit2
71	PASS document.activeElement == element is true
72	PASS axElement.role is "AXRole: AXButton"
73
74	combobox2
75	PASS document.activeElement == element is true
76	PASS axElement.role is "AXRole: AXPopUpButton"
77
78	focusable2
79	PASS document.activeElement == element is true
80	PASS axElement.role is "AXRole: AXGroup"
81
82	aria-button2
83	PASS document.activeElement == element is true
84	PASS axElement.role is "AXRole: AXButton"
85
86	aria-link2
87	PASS document.activeElement == element is true
88	PASS axElement.role is "AXRole: AXLink"
89
90	focusable1
91	PASS document.activeElement == element is true
92	PASS axElement.role is "AXRole: AXButton"
93
94	focusable2
95	PASS document.activeElement == element is true
96	PASS axElement.role is "AXRole: AXButton"
97
98	PASS successfullyParsed is true
99
100	TEST COMPLETE
101
0	+ LF	102	+ LF