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/*
* Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this program; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include "TapHighlightController.h"
#if ENABLE(TOUCH_EVENTS)
#include "ShareableBitmap.h"
#include "WKPage.h"
#include "WebCoreArgumentCoders.h"
#include "WebPage.h"
#include "WebPageProxyMessages.h"
#include "WebProcess.h"
#include <WebCore/FocusController.h>
#include <WebCore/Frame.h>
#include <WebCore/FrameView.h>
#include <WebCore/GestureTapHighlighter.h>
#include <WebCore/GraphicsContext.h>
#include <WebCore/Page.h>
#include <WebCore/RenderObject.h>
using namespace std;
using namespace WebCore;
namespace WebKit {
TapHighlightController::TapHighlightController(WebPage* webPage)
: m_webPage(webPage)
, m_overlay(0)
{
}
TapHighlightController::~TapHighlightController()
{
}
void TapHighlightController::highlight(Node* node)
{
ASSERT(node);
m_path = GestureTapHighlighter::pathForNodeHighlight(node);
m_color = node->renderer()->style()->tapHighlightColor();
if (!m_overlay) {
RefPtr<PageOverlay> overlay = PageOverlay::create(this);
m_overlay = overlay.get();
m_webPage->installPageOverlay(overlay.release());
} else
m_overlay->setNeedsDisplay();
}
void TapHighlightController::hideHighlight()
{
if (m_overlay)
m_webPage->uninstallPageOverlay(m_overlay, /* fadeout */ true);
}
void TapHighlightController::pageOverlayDestroyed(PageOverlay*)
{
}
void TapHighlightController::willMoveToWebPage(PageOverlay*, WebPage* webPage)
{
if (webPage)
return;
// The page overlay is moving away from the web page, reset it.
ASSERT(m_overlay);
m_overlay = 0;
}
void TapHighlightController::didMoveToWebPage(PageOverlay*, WebPage*)
{
}
static Color highlightColor(Color baseColor, float fractionFadedIn)
{
return Color(baseColor.red(), baseColor.green(), baseColor.blue(), int(baseColor.alpha() * fractionFadedIn));
}
void TapHighlightController::drawRect(PageOverlay* pageOverlay, GraphicsContext& context, const IntRect& /*dirtyRect*/)
{
if (m_path.isEmpty())
return;
{
GraphicsContextStateSaver stateSaver(context);
if (m_webPage->drawingArea()->pageOverlayShouldApplyFadeWhenPainting())
context.setFillColor(highlightColor(m_color, pageOverlay->fractionFadedIn() * 0.5f), ColorSpaceSRGB);
else
context.setFillColor(highlightColor(m_color, 0.5f), ColorSpaceSRGB);
context.fillPath(m_path);
}
}
bool TapHighlightController::mouseEvent(PageOverlay*, const WebMouseEvent&)
{
return false;
}
} // namespace WebKit
#endif // ENABLE(TOUCH_EVENTS)
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