CoordinatedDrawingAreaProxy.cpp [plain text]
#include "config.h"
#if USE(COORDINATED_GRAPHICS)
#include "CoordinatedDrawingAreaProxy.h"
#include "CoordinatedLayerTreeHostProxy.h"
#include "DrawingAreaMessages.h"
#include "DrawingAreaProxyMessages.h"
#include "LayerTreeContext.h"
#include "UpdateInfo.h"
#include "WebPageGroup.h"
#include "WebPageProxy.h"
#include "WebPreferences.h"
#include "WebProcessProxy.h"
#include <WebCore/Region.h>
using namespace WebCore;
namespace WebKit {
CoordinatedDrawingAreaProxy::CoordinatedDrawingAreaProxy(WebPageProxy& webPageProxy)
: DrawingAreaProxy(DrawingAreaTypeCoordinated, webPageProxy)
, m_currentBackingStoreStateID(0)
, m_nextBackingStoreStateID(0)
, m_isWaitingForDidUpdateBackingStoreState(false)
, m_hasReceivedFirstUpdate(false)
{
m_coordinatedLayerTreeHostProxy = std::make_unique<CoordinatedLayerTreeHostProxy>(this);
}
CoordinatedDrawingAreaProxy::~CoordinatedDrawingAreaProxy()
{
if (isInAcceleratedCompositingMode())
exitAcceleratedCompositingMode();
}
void CoordinatedDrawingAreaProxy::updateViewport()
{
m_webPageProxy.setViewNeedsDisplay(viewportVisibleRect());
}
WebCore::IntRect CoordinatedDrawingAreaProxy::contentsRect() const
{
return IntRect(IntPoint::zero(), m_webPageProxy.viewSize());
}
void CoordinatedDrawingAreaProxy::dispatchAfterEnsuringDrawing(std::function<void(CallbackBase::Error)> callbackFunction)
{
if (!m_webPageProxy.isValid()) {
callbackFunction(CallbackBase::Error::OwnerWasInvalidated);
return;
}
RunLoop::main().dispatch([callbackFunction] {
callbackFunction(CallbackBase::Error::None);
});
}
void CoordinatedDrawingAreaProxy::sizeDidChange()
{
backingStoreStateDidChange(RespondImmediately);
}
void CoordinatedDrawingAreaProxy::deviceScaleFactorDidChange()
{
backingStoreStateDidChange(RespondImmediately);
}
void CoordinatedDrawingAreaProxy::visibilityDidChange()
{
if (m_layerTreeContext.isEmpty())
backingStoreStateDidChange(DoNotRespondImmediately);
}
void CoordinatedDrawingAreaProxy::waitForBackingStoreUpdateOnNextPaint()
{
m_hasReceivedFirstUpdate = true;
}
void CoordinatedDrawingAreaProxy::didUpdateBackingStoreState(uint64_t backingStoreStateID, const UpdateInfo& updateInfo, const LayerTreeContext& layerTreeContext)
{
ASSERT_ARG(backingStoreStateID, backingStoreStateID <= m_nextBackingStoreStateID);
ASSERT_ARG(backingStoreStateID, backingStoreStateID > m_currentBackingStoreStateID);
m_currentBackingStoreStateID = backingStoreStateID;
m_isWaitingForDidUpdateBackingStoreState = false;
m_webPageProxy.process().responsivenessTimer().stop();
if (layerTreeContext != m_layerTreeContext) {
if (!m_layerTreeContext.isEmpty()) {
exitAcceleratedCompositingMode();
ASSERT(m_layerTreeContext.isEmpty());
}
if (!layerTreeContext.isEmpty()) {
enterAcceleratedCompositingMode(layerTreeContext);
ASSERT(layerTreeContext == m_layerTreeContext);
}
}
if (m_nextBackingStoreStateID != m_currentBackingStoreStateID)
sendUpdateBackingStoreState(RespondImmediately);
else
m_hasReceivedFirstUpdate = true;
}
void CoordinatedDrawingAreaProxy::enterAcceleratedCompositingMode(uint64_t backingStoreStateID, const LayerTreeContext& layerTreeContext)
{
ASSERT_ARG(backingStoreStateID, backingStoreStateID <= m_currentBackingStoreStateID);
if (backingStoreStateID < m_currentBackingStoreStateID)
return;
enterAcceleratedCompositingMode(layerTreeContext);
}
void CoordinatedDrawingAreaProxy::exitAcceleratedCompositingMode(uint64_t backingStoreStateID, const UpdateInfo& updateInfo)
{
ASSERT_ARG(backingStoreStateID, backingStoreStateID <= m_currentBackingStoreStateID);
if (backingStoreStateID < m_currentBackingStoreStateID)
return;
exitAcceleratedCompositingMode();
}
void CoordinatedDrawingAreaProxy::updateAcceleratedCompositingMode(uint64_t backingStoreStateID, const LayerTreeContext& layerTreeContext)
{
ASSERT_ARG(backingStoreStateID, backingStoreStateID <= m_currentBackingStoreStateID);
if (backingStoreStateID < m_currentBackingStoreStateID)
return;
updateAcceleratedCompositingMode(layerTreeContext);
}
void CoordinatedDrawingAreaProxy::backingStoreStateDidChange(RespondImmediatelyOrNot respondImmediatelyOrNot)
{
++m_nextBackingStoreStateID;
sendUpdateBackingStoreState(respondImmediatelyOrNot);
}
void CoordinatedDrawingAreaProxy::sendUpdateBackingStoreState(RespondImmediatelyOrNot respondImmediatelyOrNot)
{
ASSERT(m_currentBackingStoreStateID < m_nextBackingStoreStateID);
if (!m_webPageProxy.isValid())
return;
if (m_isWaitingForDidUpdateBackingStoreState)
return;
if (m_webPageProxy.viewSize().isEmpty() && !m_webPageProxy.useFixedLayout())
return;
m_isWaitingForDidUpdateBackingStoreState = respondImmediatelyOrNot == RespondImmediately;
m_webPageProxy.process().send(Messages::DrawingArea::UpdateBackingStoreState(m_nextBackingStoreStateID, respondImmediatelyOrNot == RespondImmediately, m_webPageProxy.deviceScaleFactor(), m_size, m_scrollOffset), m_webPageProxy.pageID());
m_scrollOffset = IntSize();
if (m_isWaitingForDidUpdateBackingStoreState) {
m_webPageProxy.process().responsivenessTimer().start();
}
if (m_isWaitingForDidUpdateBackingStoreState && !m_layerTreeContext.isEmpty()) {
waitForAndDispatchDidUpdateBackingStoreState();
}
}
void CoordinatedDrawingAreaProxy::waitForAndDispatchDidUpdateBackingStoreState()
{
ASSERT(m_isWaitingForDidUpdateBackingStoreState);
if (!m_webPageProxy.isValid())
return;
if (m_webPageProxy.process().state() == WebProcessProxy::State::Launching)
return;
m_webPageProxy.process().connection()->waitForAndDispatchImmediately<Messages::DrawingAreaProxy::DidUpdateBackingStoreState>(m_webPageProxy.pageID(), std::chrono::milliseconds(500));
}
void CoordinatedDrawingAreaProxy::enterAcceleratedCompositingMode(const LayerTreeContext& layerTreeContext)
{
ASSERT(!isInAcceleratedCompositingMode());
m_layerTreeContext = layerTreeContext;
m_webPageProxy.enterAcceleratedCompositingMode(layerTreeContext);
}
void CoordinatedDrawingAreaProxy::setVisibleContentsRect(const WebCore::FloatRect& visibleContentsRect, const WebCore::FloatPoint& trajectoryVector)
{
m_coordinatedLayerTreeHostProxy->setVisibleContentsRect(visibleContentsRect, trajectoryVector);
}
void CoordinatedDrawingAreaProxy::exitAcceleratedCompositingMode()
{
ASSERT(isInAcceleratedCompositingMode());
m_layerTreeContext = LayerTreeContext();
m_webPageProxy.exitAcceleratedCompositingMode();
}
void CoordinatedDrawingAreaProxy::updateAcceleratedCompositingMode(const LayerTreeContext& layerTreeContext)
{
ASSERT(isInAcceleratedCompositingMode());
m_layerTreeContext = layerTreeContext;
m_webPageProxy.updateAcceleratedCompositingMode(layerTreeContext);
}
} #endif // USE(COORDINATED_GRAPHICS)