| // Copyright 2019 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "cc/layers/mirror_layer.h" |
| |
| #include "cc/layers/mirror_layer_impl.h" |
| |
| namespace cc { |
| |
| std::unique_ptr<LayerImpl> MirrorLayer::CreateLayerImpl( |
| LayerTreeImpl* tree_impl) { |
| return MirrorLayerImpl::Create(tree_impl, id()); |
| } |
| |
| void MirrorLayer::PushPropertiesTo(LayerImpl* layer) { |
| Layer::PushPropertiesTo(layer); |
| |
| auto* mirror_layer = static_cast<MirrorLayerImpl*>(layer); |
| mirror_layer->SetMirroredLayerId(mirrored_layer_->id()); |
| } |
| |
| void MirrorLayer::SetLayerTreeHost(LayerTreeHost* host) { |
| #if DCHECK_IS_ON() |
| if (host && host != layer_tree_host()) { |
| for (auto* p = parent(); p; p = p->parent()) |
| DCHECK_NE(p, mirrored_layer_.get()); |
| } |
| #endif |
| |
| Layer::SetLayerTreeHost(host); |
| } |
| |
| scoped_refptr<MirrorLayer> MirrorLayer::Create( |
| scoped_refptr<Layer> mirrored_layer) { |
| return base::WrapRefCounted(new MirrorLayer(std::move(mirrored_layer))); |
| } |
| |
| MirrorLayer::MirrorLayer(scoped_refptr<Layer> mirrored_layer) |
| : mirrored_layer_(std::move(mirrored_layer)) { |
| DCHECK(mirrored_layer_); |
| mirrored_layer_->IncrementMirrorCount(); |
| } |
| |
| MirrorLayer::~MirrorLayer() { |
| mirrored_layer_->DecrementMirrorCount(); |
| } |
| |
| } // namespace cc |