WKAccessibilityWebPageObjectBase.mm   [plain text]

/*
* Copyright (C) 2011 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* 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. AND ITS CONTRIBUTORS ``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 ITS 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.
*/

#import "config.h"
#import "WKAccessibilityWebPageObjectBase.h"

#import "WebFrame.h"
#import "WebPage.h"
#import "WKArray.h"
#import "WKNumber.h"
#import "WKRetainPtr.h"
#import "WKSharedAPICast.h"
#import "WKString.h"
#import "WKStringCF.h"
#import <WebCore/AXObjectCache.h>
#import <WebCore/Document.h>
#import <WebCore/Frame.h>
#import <WebCore/FrameView.h>
#import <WebCore/Page.h>
#import <WebCore/ScrollView.h>
#import <WebCore/Scrollbar.h>
#import <wtf/ObjCRuntimeExtras.h>

using namespace WebKit;

@implementation WKAccessibilityWebPageObjectBase

- (id)accessibilityRootObjectWrapper
{
if (!WebCore::AXObjectCache::accessibilityEnabled())
WebCore::AXObjectCache::enableAccessibility();

if (!m_page)
return nil;

NSObject* mainFramePluginAccessibilityObjectWrapper = m_page->accessibilityObjectForMainFramePlugin();
if (mainFramePluginAccessibilityObjectWrapper)
return mainFramePluginAccessibilityObjectWrapper;

WebCore::Page* page = m_page->corePage();
if (!page)
return nil;

WebCore::Frame& core = page->mainFrame();
if (!core.document())
return nil;

WebCore::AXObjectCache* cache = core.document()->axObjectCache();
if (!cache)
return nil;

if (WebCore::AccessibilityObject* root = cache->rootObject())
return root->wrapper();

return nil;
}

- (void)setWebPage:(WebPage*)page
{
m_page = page;
}

- (void)setRemoteParent:(id)parent
{
if (parent != m_parent) {
[m_parent release];
m_parent = [parent retain];
}
}

- (id)accessibilityFocusedUIElement
{
return [[self accessibilityRootObjectWrapper] accessibilityFocusedUIElement];
}

@end