#include "config.h"
#if USE(ACCELERATED_COMPOSITING)
#include "FrameLayers.h"
#include "Frame.h"
#include "FrameView.h"
#include "LayerWebKitThread.h"
#include "Page.h"
#include "RenderPart.h"
#include "WebPage_p.h"
#include <wtf/Assertions.h>
using namespace WebCore;
namespace BlackBerry {
namespace WebKit {
static FloatSize frameLayerAbsoluteOffset(Frame* frame)
{
ASSERT(frame);
if (!frame->view() || !frame->page() || !frame->page()->mainFrame() || !frame->page()->mainFrame()->view())
return FloatSize();
IntPoint offset = frame->page()->mainFrame()->view()->windowToContents(frame->view()->contentsToWindow(IntPoint::zero()));
return FloatSize(offset.x(), offset.y());
}
FrameLayers::FrameLayers(WebPagePrivate* page)
: m_pagePrivate(page)
, m_rootGraphicsLayer()
, m_rootLayer(0)
{
}
FrameLayers::~FrameLayers()
{
m_frameLayers.clear();
}
bool FrameLayers::containsLayerForFrame(Frame* frame)
{
ASSERT(frame);
return m_frameLayers.contains(frame);
}
void FrameLayers::addLayer(Frame* frame, LayerWebKitThread* layer)
{
ASSERT(frame != m_pagePrivate->m_mainFrame || !isRootLayerMainFrameLayer());
if (frame == m_pagePrivate->m_mainFrame && isRootLayerMainFrameLayer())
return;
ASSERT(frame && layer && !m_frameLayers.contains(frame));
m_frameLayers.add(frame, layer);
calculateRootLayer();
if (!m_rootLayer) {
ASSERT(!m_rootGraphicsLayer);
m_rootGraphicsLayer = GraphicsLayer::create(0);
m_rootLayer = m_rootGraphicsLayer->platformLayer();
}
if (m_rootLayer != layer)
m_rootLayer->addSublayer(layer);
}
void FrameLayers::removeLayerByFrame(Frame* frame)
{
ASSERT(frame);
FrameLayerMap::iterator it = m_frameLayers.find(frame);
if (it != m_frameLayers.end()) {
LayerWebKitThread* layer = it->value;
if (layer->superlayer())
layer->removeFromSuperlayer();
m_frameLayers.remove(it);
calculateRootLayer();
}
}
void FrameLayers::commitOnWebKitThread(double scale)
{
ASSERT(m_rootLayer);
if (!isRootLayerMainFrameLayer()) {
for (FrameLayerMap::iterator it = m_frameLayers.begin(); it != m_frameLayers.end(); ++it)
it->value->setAbsoluteOffset(frameLayerAbsoluteOffset(it->key));
}
m_rootLayer->commitOnWebKitThread(scale);
}
void FrameLayers::notifyAnimationsStarted(double animationStartTime)
{
m_rootLayer->notifyAnimationsStarted(animationStartTime);
}
void FrameLayers::calculateRootLayer()
{
if (m_frameLayers.size() == 1 && m_frameLayers.begin()->key == m_pagePrivate->m_mainFrame)
m_rootLayer = m_frameLayers.begin()->value;
else if (m_rootGraphicsLayer)
m_rootLayer = m_rootGraphicsLayer->platformLayer();
else
m_rootLayer = 0;
}
void FrameLayers::releaseLayerResources()
{
if (m_rootLayer)
m_rootLayer->releaseLayerResources();
}
} }
#endif // USE(ACCELERATED_COMPOSITING)