WKCACFLayerRenderer::WKCACFLayerRenderer(WKCACFLayerRendererClient* client)
: m_client(client)
, m_mightBeAbleToCreateDeviceLater(true)
, m_rootLayer(PlatformCALayer::create(PlatformCALayer::LayerTypeRootLayer, 0))
, m_context(wkCACFContextCreate())
, m_hostWindow(0)
, m_renderTimer(this, &WKCACFLayerRenderer::renderTimerFired)
, m_backingStoreDirty(false)
, m_mustResetLostDeviceBeforeRendering(false)
, m_syncLayerChanges(false)
{
// Point the CACFContext to this
wkCACFContextSetUserData(m_context, this);
// Under the root layer, we have a clipping layer to clip the content,
// that contains a scroll layer that we use for scrolling the content.
// The root layer is the size of the client area of the window.
// The clipping layer is the size of the WebView client area (window less the scrollbars).
// The scroll layer is the size of the root child layer.
// Resizing the window will change the bounds of the rootLayer and the clip layer and will not
// cause any repositioning.
// Scrolling will affect only the position of the scroll layer without affecting the bounds.
m_rootLayer->setName("WKCACFLayerRenderer rootLayer");
m_rootLayer->setAnchorPoint(FloatPoint3D(0, 0, 0));
m_rootLayer->setGeometryFlipped(true);
#ifndef NDEBUG
CGColorRef debugColor = CGColorCreateGenericRGB(1, 0, 0, 0.8);
m_rootLayer->setBackgroundColor(debugColor);
CGColorRelease(debugColor);
#endif
if (m_context)
wkCACFContextSetLayer(m_context, m_rootLayer->platformLayer());
#ifndef NDEBUG
char* printTreeFlag = getenv("CA_PRINT_TREE");
m_printTree = printTreeFlag && atoi(printTreeFlag);
#endif
}
void LegacyCACFLayerTreeHost::initializeContext(void* userData, PlatformCALayer* layer)
{
wkCACFContextSetUserData(m_context, userData);
wkCACFContextSetLayer(m_context, layer->platformLayer());
}
