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/*
* Copyright (C) 2013 Nokia Corporation and/or its subsidiary(-ies)
* Copyright (C) 2013 Samsung Electronics. 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.
*/
#include "config.h"
#if USE(COORDINATED_GRAPHICS)
#include "WebPage.h"
#include "HitTestResult.h"
#include "WebCoreArgumentCoders.h"
#include "WebFrame.h"
#include "WebPageProxyMessages.h"
#include <WebCore/EventHandler.h>
#include <WebCore/Frame.h>
#include <WebCore/FrameView.h>
#include <WebCore/ScrollView.h>
using namespace WebCore;
namespace WebKit {
#if ENABLE(TOUCH_ADJUSTMENT)
void WebPage::findZoomableAreaForPoint(const IntPoint& point, const IntSize& area)
{
Node* node = 0;
IntRect zoomableArea;
bool foundAreaForTouchPoint = m_mainFrame->coreFrame()->eventHandler()->bestZoomableAreaForTouchPoint(point, IntSize(area.width() / 2, area.height() / 2), zoomableArea, node);
if (!foundAreaForTouchPoint)
return;
ASSERT(node);
if (node->document() && node->document()->view())
zoomableArea = node->document()->view()->contentsToWindow(zoomableArea);
send(Messages::WebPageProxy::DidFindZoomableArea(point, zoomableArea));
}
#else
void WebPage::findZoomableAreaForPoint(const IntPoint& point, const IntSize& area)
{
UNUSED_PARAM(area);
Frame* mainframe = m_mainFrame->coreFrame();
HitTestResult result = mainframe->eventHandler()->hitTestResultAtPoint(mainframe->view()->windowToContents(point), HitTestRequest::ReadOnly | HitTestRequest::Active | HitTestRequest::IgnoreClipping | HitTestRequest::DisallowShadowContent);
Node* node = result.innerNode();
if (!node)
return;
IntRect zoomableArea = node->pixelSnappedBoundingBox();
while (true) {
bool found = !node->isTextNode() && !node->isShadowRoot();
// No candidate found, bail out.
if (!found && !node->parentNode())
return;
// Candidate found, and it is a better candidate than its parent.
// NB: A parent is considered a better candidate iff the node is
// contained by it and it is the only child.
if (found && (!node->parentNode() || node->parentNode()->childNodeCount() != 1))
break;
node = node->parentNode();
zoomableArea.unite(node->pixelSnappedBoundingBox());
}
if (node->document() && node->document()->frame() && node->document()->frame()->view()) {
const ScrollView* view = node->document()->frame()->view();
zoomableArea = view->contentsToWindow(zoomableArea);
}
send(Messages::WebPageProxy::DidFindZoomableArea(point, zoomableArea));
}
#endif
} // namespace WebKit
#endif // USE(COORDINATED_GRAPHICS)
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