/*

 * Copyright (C) 2008 Apple Inc. All Rights Reserved.

 * Copyright (C) 2008 Google Inc.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY

 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

 */

#include "config.h"

#include "AXObjectCache.h"

#include "AccessibilityObject.h"

#include "Chrome.h"

#include "ChromeClientChromium.h"

#include "FrameView.h"

namespace WebCore {

static ChromeClientChromium* toChromeClientChromium(FrameView* view)

{

    Page* page = view->frame() ? view->frame()->page() : 0;

    if (!page)

        return 0;

    return static_cast<ChromeClientChromium*>(page->chrome()->client());

}

void AXObjectCache::detachWrapper(AccessibilityObject* obj)

{

    // In Chromium, AccessibilityObjects are wrapped lazily.

    if (AccessibilityObjectWrapper* wrapper = obj->wrapper())

        wrapper->detach();

}

void AXObjectCache::attachWrapper(AccessibilityObject*)

{

    // In Chromium, AccessibilityObjects are wrapped lazily.

}

void AXObjectCache::postPlatformNotification(AccessibilityObject* obj, AXNotification notification)

{

    if (notification != AXCheckedStateChanged)

        return;

    if (!obj || !obj->document() || !obj->documentFrameView())

        return;

    ChromeClientChromium* client = toChromeClientChromium(obj->documentFrameView());

    if (client)

        client->didChangeAccessibilityObjectState(obj);

}

void AXObjectCache::handleFocusedUIElementChanged(RenderObject*, RenderObject*)

{

}

void AXObjectCache::handleScrolledToAnchor(const Node*)

{

}

} // namespace WebCore