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/*
* Copyright (C) 2012, 2013 Research In Motion Limited. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#if USE(ACCELERATED_COMPOSITING)
#include "DefaultTapHighlight.h"
#include "GraphicsContext.h"
#include "Path.h"
#include "WebAnimation.h"
#include "WebPage_p.h"
#include <BlackBerryPlatformGraphicsContext.h>
#include <BlackBerryPlatformMessageClient.h>
#include <BlackBerryPlatformPath.h>
using namespace WebCore;
namespace BlackBerry {
namespace WebKit {
const double ActiveTextFadeAnimationDuration = 0.3;
const double OverlayShrinkAnimationDuration = 0.5;
const double OverlayInitialScale = 2.0;
STATIC_LOCAL_STRING(s_fadeAnimationName, "fade");
STATIC_LOCAL_STRING(s_shrinkAnimationName, "shrink");
DefaultTapHighlight::DefaultTapHighlight(WebPagePrivate* page)
: m_page(page)
, m_visible(false)
, m_shouldHideAfterScroll(false)
{
}
DefaultTapHighlight::~DefaultTapHighlight()
{
}
void DefaultTapHighlight::draw(const Platform::IntRectRegion& region, int red, int green, int blue, int alpha, bool hideAfterScroll, bool isStartOfSelection)
{
ASSERT(BlackBerry::Platform::webKitThreadMessageClient()->isCurrentThread());
m_region = region;
m_color = Color(red, green, blue, std::min(128, alpha));
m_shouldHideAfterScroll = hideAfterScroll;
FloatRect rect = IntRect(m_region.extents());
if (rect.isEmpty())
return;
// Transparent color means disable the tap highlight.
if (!m_color.alpha()) {
hide();
return;
}
{
MutexLocker lock(m_mutex);
m_visible = true;
}
if (!m_overlay) {
m_overlay = adoptPtr(new WebOverlay(this));
m_page->m_webPage->addOverlay(m_overlay.get());
}
m_overlay->removeAnimation(s_shrinkAnimationName);
m_overlay->resetOverrides();
m_overlay->setPosition(rect.location());
m_overlay->setSize(rect.size());
m_overlay->setDrawsContent(true);
m_overlay->removeAnimation(s_fadeAnimationName);
m_overlay->setOpacity(1.0);
m_overlay->invalidate();
// Animate overlay scale to indicate selection is started.
if (isStartOfSelection) {
WebAnimation shrinkAnimation = WebAnimation::shrinkAnimation(s_shrinkAnimationName, OverlayInitialScale, 1, OverlayShrinkAnimationDuration);
m_overlay->addAnimation(shrinkAnimation);
}
}
void DefaultTapHighlight::hide()
{
if (!m_overlay)
return;
{
MutexLocker lock(m_mutex);
if (!m_visible)
return;
m_visible = false;
}
// Since WebAnimation is not thread safe, we create a new one each time instead of reusing the same object on different
// threads (that would introduce race conditions).
WebAnimation fadeAnimation = WebAnimation::fadeAnimation(s_fadeAnimationName, 1.0, 0.0, ActiveTextFadeAnimationDuration);
// Normally, this method is called on the WebKit thread, but it can also be
// called from the compositing thread.
if (BlackBerry::Platform::webKitThreadMessageClient()->isCurrentThread())
m_overlay->addAnimation(fadeAnimation);
else if (BlackBerry::Platform::userInterfaceThreadMessageClient()->isCurrentThread())
m_overlay->override()->addAnimation(fadeAnimation);
}
void DefaultTapHighlight::notifyFlushRequired(const GraphicsLayer* layer)
{
m_page->notifyFlushRequired(layer);
}
void DefaultTapHighlight::paintContents(const GraphicsLayer*, GraphicsContext& c, GraphicsLayerPaintingPhase, const IntRect& /*inClip*/)
{
if (!m_region.numRects())
return;
Path path(m_region.boundaryPath());
c.save();
const Platform::IntRect& rect = m_region.extents();
c.translate(-rect.x(), -rect.y());
// Draw tap highlight
c.setFillColor(m_color, ColorSpaceDeviceRGB);
c.fillPath(path);
Color darker = Color(m_color.red(), m_color.green(), m_color.blue()); // Get rid of alpha.
c.setStrokeColor(darker, ColorSpaceDeviceRGB);
c.setStrokeThickness(1);
c.strokePath(path);
c.restore();
}
} // namespace WebKit
} // namespace BlackBerry
#endif // USE(ACCELERATED_COMPOSITING)
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