void CoordinatedDrawingArea::viewStateDidChange(ViewState::Flags changed, bool, const Vector<uint64_t>&)
{
if (changed & ViewState::IsVisible) {
if (m_webPage.isVisible())
resumePainting();
else
suspendPainting();
}
}
void DrawingAreaImpl::updateBackingStoreState(uint64_t stateID, bool respondImmediately, float deviceScaleFactor, const WebCore::IntSize& size, const WebCore::IntSize& scrollOffset)
{
ASSERT(!m_inUpdateBackingStoreState);
m_inUpdateBackingStoreState = true;
ASSERT_ARG(stateID, stateID >= m_backingStoreStateID);
if (stateID != m_backingStoreStateID) {
m_backingStoreStateID = stateID;
m_shouldSendDidUpdateBackingStoreState = true;
m_webPage->setDeviceScaleFactor(deviceScaleFactor);
m_webPage->setSize(size);
m_webPage->layoutIfNeeded();
m_webPage->scrollMainFrameIfNotAtMaxScrollPosition(scrollOffset);
if (m_layerTreeHost) {
#if USE(COORDINATED_GRAPHICS)
// Coordinated Graphics sets the size of the root layer to contents size.
if (!m_webPage->useFixedLayout())
#endif
m_layerTreeHost->sizeDidChange(m_webPage->size());
} else
m_dirtyRegion = m_webPage->bounds();
} else {
ASSERT(size == m_webPage->size());
if (!m_shouldSendDidUpdateBackingStoreState) {
// We've already sent a DidUpdateBackingStoreState message for this state. We have nothing more to do.
m_inUpdateBackingStoreState = false;
return;
}
}
// The UI process has updated to a new backing store state. Any Update messages we sent before
// this point will be ignored. We wait to set this to false until after updating the page's
// size so that any displays triggered by the relayout will be ignored. If we're supposed to
// respond to the UpdateBackingStoreState message immediately, we'll do a display anyway in
// sendDidUpdateBackingStoreState; otherwise we shouldn't do one right now.
m_isWaitingForDidUpdate = false;
if (respondImmediately) {
// Make sure to resume painting if we're supposed to respond immediately, otherwise we'll just
// send back an empty UpdateInfo struct.
if (m_isPaintingSuspended)
resumePainting();
sendDidUpdateBackingStoreState();
}
m_inUpdateBackingStoreState = false;
}
void ChunkedUpdateDrawingArea::didReceiveMessage(CoreIPC::Connection*, CoreIPC::MessageID messageID, CoreIPC::ArgumentDecoder* arguments)
{
DrawingAreaID targetDrawingAreaID;
if (!arguments->decode(CoreIPC::Out(targetDrawingAreaID)))
return;
// We can switch drawing areas on the fly, so if this message was targetted at an obsolete drawing area, ignore it.
if (targetDrawingAreaID != id())
return;
switch (messageID.get<DrawingAreaMessage::Kind>()) {
case DrawingAreaMessage::SetSize: {
IntSize size;
if (!arguments->decode(CoreIPC::Out(size)))
return;
setSize(size);
break;
}
case DrawingAreaMessage::SuspendPainting:
suspendPainting();
break;
case DrawingAreaMessage::ResumePainting: {
bool forceRepaint;
if (!arguments->decode(CoreIPC::Out(forceRepaint)))
return;
resumePainting(forceRepaint);
break;
}
case DrawingAreaMessage::DidUpdate:
didUpdate();
break;
default:
ASSERT_NOT_REACHED();
break;
}
}
void LayerBackedDrawingArea::didReceiveMessage(CoreIPC::Connection*, CoreIPC::MessageID messageID, CoreIPC::ArgumentDecoder* arguments)
{
DrawingAreaInfo::Identifier targetIdentifier;
if (!arguments->decode(CoreIPC::Out(targetIdentifier)))
return;
// We can switch drawing areas on the fly, so if this message was targetted at an obsolete drawing area, ignore it.
if (targetIdentifier != info().identifier)
return;
switch (messageID.get<DrawingAreaLegacyMessage::Kind>()) {
case DrawingAreaLegacyMessage::SetSize: {
IntSize size;
if (!arguments->decode(CoreIPC::Out(size)))
return;
setSize(size);
break;
}
case DrawingAreaLegacyMessage::SuspendPainting:
suspendPainting();
break;
case DrawingAreaLegacyMessage::ResumePainting:
resumePainting();
break;
case DrawingAreaLegacyMessage::DidUpdate:
didUpdate();
break;
default:
ASSERT_NOT_REACHED();
break;
}
}
void TiledDrawingArea::didReceiveMessage(CoreIPC::Connection*, CoreIPC::MessageID messageID, CoreIPC::ArgumentDecoder* arguments)
{
switch (messageID.get<DrawingAreaLegacyMessage::Kind>()) {
case DrawingAreaLegacyMessage::SetSize: {
IntSize size;
if (!arguments->decode(CoreIPC::Out(size)))
return;
setSize(size);
break;
}
case DrawingAreaLegacyMessage::SuspendPainting:
suspendPainting();
break;
case DrawingAreaLegacyMessage::ResumePainting:
resumePainting();
break;
case DrawingAreaLegacyMessage::CancelTileUpdate: {
int tileID;
if (!arguments->decode(CoreIPC::Out(tileID)))
return;
UpdateMap::iterator it = m_pendingUpdates.find(tileID);
if (it != m_pendingUpdates.end()) {
m_pendingUpdates.remove(it);
if (m_pendingUpdates.isEmpty()) {
WebProcess::shared().connection()->send(DrawingAreaProxyLegacyMessage::AllTileUpdatesProcessed, m_webPage->pageID(), CoreIPC::In());
m_tileUpdateTimer.stop();
}
}
break;
}
case DrawingAreaLegacyMessage::RequestTileUpdate: {
TileUpdate update;
if (!arguments->decode(CoreIPC::Out(update.tileID, update.dirtyRect, update.scale)))
return;
UpdateMap::iterator it = m_pendingUpdates.find(update.tileID);
if (it != m_pendingUpdates.end())
it->second.dirtyRect.unite(update.dirtyRect);
else {
m_pendingUpdates.add(update.tileID, update);
if (!m_tileUpdateTimer.isActive())
m_tileUpdateTimer.startOneShot(0);
}
break;
}
case DrawingAreaLegacyMessage::TakeSnapshot: {
IntSize targetSize;
IntRect contentsRect;
if (!arguments->decode(CoreIPC::Out(targetSize, contentsRect)))
return;
m_webPage->layoutIfNeeded();
contentsRect.intersect(IntRect(IntPoint::zero(), m_webPage->mainFrame()->coreFrame()->view()->contentsSize()));
float targetScale = float(targetSize.width()) / contentsRect.width();
UpdateChunk updateChunk(IntRect(IntPoint(contentsRect.x() * targetScale, contentsRect.y() * targetScale), targetSize));
paintIntoUpdateChunk(&updateChunk, targetScale);
WebProcess::shared().connection()->send(DrawingAreaProxyLegacyMessage::SnapshotTaken, m_webPage->pageID(), CoreIPC::In(updateChunk));
break;
}
default:
ASSERT_NOT_REACHED();
break;
}
}