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/*
* Copyright (C) 2012 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 "SelectionOverlay.h"
#include "GraphicsContext.h"
#include "LayerMessage.h"
#include "Path.h"
#include "PlatformContextSkia.h"
#include "RenderTheme.h"
#include "WebPage_p.h"
#include <BlackBerryPlatformMessageClient.h>
using namespace WebCore;
namespace BlackBerry {
namespace WebKit {
SelectionOverlay::SelectionOverlay(WebPagePrivate* page)
: m_page(page)
, m_hideDispatched(false)
{
}
SelectionOverlay::~SelectionOverlay()
{
}
void SelectionOverlay::draw(const Platform::IntRectRegion& region)
{
ASSERT(BlackBerry::Platform::webKitThreadMessageClient()->isCurrentThread());
m_region = region;
FloatRect rect = IntRect(m_region.extents());
if (rect.isEmpty()) {
hide();
return;
}
if (!m_overlay)
m_overlay = adoptPtr(new WebOverlay(this));
m_page->m_webPage->addOverlay(m_overlay.get());
m_overlay->resetOverrides();
m_overlay->setPosition(rect.location());
m_overlay->setSize(rect.size());
m_overlay->setDrawsContent(true);
m_overlay->setOpacity(1.0);
m_overlay->invalidate();
}
void SelectionOverlay::hide()
{
// Track a dispatched message, we don't want to flood the webkit thread.
// There can be as many as one more message enqued as needed but never less.
if (isWebKitThread())
m_hideDispatched = false;
else if (m_hideDispatched) {
// Early return if there is message already pending on the webkit thread.
return;
}
if (!isWebKitThread()) {
m_hideDispatched = true;
// Normally, this method is called on the WebKit thread, but it can also be
// called from the compositing thread.
dispatchWebKitMessage(BlackBerry::Platform::createMethodCallMessage(&SelectionOverlay::hide, this));
return;
}
ASSERT(BlackBerry::Platform::webKitThreadMessageClient()->isCurrentThread());
if (!m_overlay)
return;
m_page->m_webPage->removeOverlay(m_overlay.get());
}
void SelectionOverlay::notifySyncRequired(const GraphicsLayer*)
{
m_page->scheduleRootLayerCommit();
}
void SelectionOverlay::paintContents(const GraphicsLayer*, GraphicsContext& c, GraphicsLayerPaintingPhase, const IntRect& inClip)
{
std::vector<Platform::IntRect> rects = m_region.rects();
Platform::IntRect rect = m_region.extents();
SkRegion windowRegion;
unsigned rectCount = m_region.numRects();
if (!rectCount)
return;
IntRect clip(inClip);
clip.move(rect.x(), rect.y());
for (unsigned i = 0; i < rectCount; ++i) {
IntRect rectToPaint = rects[i];
rectToPaint.intersect(clip);
SkIRect r = SkIRect::MakeXYWH(rectToPaint.x(), rectToPaint.y(), rectToPaint.width(), rectToPaint.height());
windowRegion.op(r, SkRegion::kUnion_Op);
}
SkPath pathToPaint;
windowRegion.getBoundaryPath(&pathToPaint);
Path path(pathToPaint);
c.save();
c.translate(-rect.x(), -rect.y());
// Draw selection overlay
Color color = RenderTheme::defaultTheme()->activeSelectionBackgroundColor();
c.setFillColor(color, ColorSpaceDeviceRGB);
c.fillPath(path);
c.restore();
}
} // namespace WebKit
} // namespace BlackBerry
#endif // USE(ACCELERATED_COMPOSITING)
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