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/*
* Copyright (C) 2008 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. ``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 "AccessibilityController.h"
#include "AccessibilityUIElement.h"
#include "DumpRenderTree.h"
#include <JavaScriptCore/Assertions.h>
#include <WebCore/COMPtr.h>
#include <WebKit/WebKit.h>
#include <oleacc.h>
AccessibilityController::AccessibilityController()
{
}
AccessibilityController::~AccessibilityController()
{
}
AccessibilityUIElement AccessibilityController::focusedElement()
{
COMPtr<IAccessible> rootAccessible = rootElement().platformUIElement();
VARIANT vFocus;
if (FAILED(rootAccessible->get_accFocus(&vFocus)))
return 0;
if (V_VT(&vFocus) == VT_I4) {
ASSERT(V_I4(&vFocus) == CHILDID_SELF);
// The root accessible object is the focused object.
return rootAccessible;
}
ASSERT(V_VT(&vFocus) == VT_DISPATCH);
// We have an IDispatch; query for IAccessible.
return COMPtr<IAccessible>(Query, V_DISPATCH(&vFocus));
}
AccessibilityUIElement AccessibilityController::rootElement()
{
COMPtr<IWebView> view;
if (FAILED(frame->webView(&view)))
return 0;
COMPtr<IWebViewPrivate> viewPrivate(Query, view);
if (!viewPrivate)
return 0;
HWND webViewWindow;
if (FAILED(viewPrivate->viewWindow((OLE_HANDLE*)&webViewWindow)))
return 0;
// Get the root accessible object by querying for the accessible object for the
// WebView's window.
COMPtr<IAccessible> rootAccessible;
if (FAILED(AccessibleObjectFromWindow(webViewWindow, static_cast<DWORD>(OBJID_CLIENT), __uuidof(IAccessible), reinterpret_cast<void**>(&rootAccessible))))
return 0;
return rootAccessible;
}
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