LayerComposite*
LayerManagerComposite::RootLayer() const
{
if (mDestroyed) {
NS_WARNING("Call on destroyed layer manager");
return nullptr;
}
return ToLayerComposite(mRoot);
}
LayerManagerComposite::AutoAddMaskEffect::AutoAddMaskEffect(Layer* aMaskLayer,
EffectChain& aEffects)
: mCompositable(nullptr), mFailed(false)
{
if (!aMaskLayer) {
return;
}
mCompositable = ToLayerComposite(aMaskLayer)->GetCompositableHost();
if (!mCompositable) {
NS_WARNING("Mask layer with no compositable host");
mFailed = true;
return;
}
if (!mCompositable->AddMaskEffect(aEffects, aMaskLayer->GetEffectiveTransform())) {
mCompositable = nullptr;
mFailed = true;
}
}
