void CoordinatedDrawingAreaProxy::visibilityDidChange()
{
// If we don't have a backing store, go ahead and mark the backing store as being changed so
// that when paint we'll actually wait for something to paint and not flash white.
if (!m_backingStore && m_layerTreeContext.isEmpty())
backingStoreStateDidChange(DoNotRespondImmediately);
}
void DrawingAreaProxyImpl::visibilityDidChange()
{
if (!m_webPageProxy->isViewVisible()) {
// Suspend painting.
m_webPageProxy->process()->send(Messages::DrawingArea::SuspendPainting(), m_webPageProxy->pageID());
return;
}
// Resume painting.
m_webPageProxy->process()->send(Messages::DrawingArea::ResumePainting(), m_webPageProxy->pageID());
#if USE(ACCELERATED_COMPOSITING)
// If we don't have a backing store, go ahead and mark the backing store as being changed so
// that when paint we'll actually wait for something to paint and not flash white.
if (!m_backingStore && m_layerTreeContext.isEmpty())
backingStoreStateDidChange(DoNotRespondImmediately);
#endif
}
void DrawingAreaProxyImpl::discardBackingStore()
{
m_backingStore = nullptr;
backingStoreStateDidChange(DoNotRespondImmediately);
}
void DrawingAreaProxyImpl::deviceScaleFactorDidChange()
{
backingStoreStateDidChange(RespondImmediately);
}
void DrawingAreaProxyImpl::sizeDidChange()
{
backingStoreStateDidChange(RespondImmediately);
}
void CoordinatedDrawingAreaProxy::sizeDidChange()
{
backingStoreStateDidChange(RespondImmediately);
}
