| // Copyright 2010 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/layer.h" |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include <algorithm> |
| |
| #include "base/atomic_sequence_num.h" |
| #include "base/location.h" |
| #include "base/metrics/histogram.h" |
| #include "base/single_thread_task_runner.h" |
| #include "base/time/time.h" |
| #include "base/trace_event/trace_event.h" |
| #include "cc/animation/mutable_properties.h" |
| #include "cc/base/simple_enclosed_region.h" |
| #include "cc/debug/frame_viewer_instrumentation.h" |
| #include "cc/input/main_thread_scrolling_reason.h" |
| #include "cc/layers/layer_client.h" |
| #include "cc/layers/layer_impl.h" |
| #include "cc/layers/layer_proto_converter.h" |
| #include "cc/layers/scrollbar_layer_interface.h" |
| #include "cc/output/copy_output_request.h" |
| #include "cc/output/copy_output_result.h" |
| #include "cc/proto/cc_conversions.h" |
| #include "cc/proto/gfx_conversions.h" |
| #include "cc/proto/layer.pb.h" |
| #include "cc/proto/skia_conversions.h" |
| #include "cc/trees/draw_property_utils.h" |
| #include "cc/trees/layer_tree_host.h" |
| #include "cc/trees/layer_tree_impl.h" |
| #include "third_party/skia/include/core/SkImageFilter.h" |
| #include "ui/gfx/geometry/rect_conversions.h" |
| #include "ui/gfx/geometry/vector2d_conversions.h" |
| |
| namespace cc { |
| |
| base::StaticAtomicSequenceNumber g_next_layer_id; |
| |
| scoped_refptr<Layer> Layer::Create() { |
| return make_scoped_refptr(new Layer()); |
| } |
| |
| Layer::Layer() |
| : // Layer IDs start from 1. |
| layer_id_(g_next_layer_id.GetNext() + 1), |
| ignore_set_needs_commit_(false), |
| sorting_context_id_(0), |
| parent_(nullptr), |
| layer_tree_host_(nullptr), |
| scroll_clip_layer_id_(INVALID_ID), |
| num_descendants_that_draw_content_(0), |
| transform_tree_index_(-1), |
| effect_tree_index_(-1), |
| clip_tree_index_(-1), |
| scroll_tree_index_(-1), |
| property_tree_sequence_number_(-1), |
| element_id_(0), |
| mutable_properties_(MutableProperty::kNone), |
| main_thread_scrolling_reasons_( |
| MainThreadScrollingReason::kNotScrollingOnMain), |
| should_flatten_transform_from_property_tree_(false), |
| user_scrollable_horizontal_(true), |
| user_scrollable_vertical_(true), |
| is_root_for_isolated_group_(false), |
| is_container_for_fixed_position_layers_(false), |
| is_drawable_(false), |
| draws_content_(false), |
| hide_layer_and_subtree_(false), |
| masks_to_bounds_(false), |
| contents_opaque_(false), |
| double_sided_(true), |
| should_flatten_transform_(true), |
| use_parent_backface_visibility_(false), |
| use_local_transform_for_backface_visibility_(false), |
| should_check_backface_visibility_(false), |
| force_render_surface_for_testing_(false), |
| has_render_surface_(false), |
| subtree_property_changed_(false), |
| background_color_(0), |
| safe_opaque_background_color_(0), |
| opacity_(1.f), |
| blend_mode_(SkXfermode::kSrcOver_Mode), |
| draw_blend_mode_(SkXfermode::kSrcOver_Mode), |
| scroll_parent_(nullptr), |
| clip_parent_(nullptr), |
| replica_layer_(nullptr), |
| client_(nullptr), |
| num_unclipped_descendants_(0) {} |
| |
| Layer::~Layer() { |
| // Our parent should be holding a reference to us so there should be no |
| // way for us to be destroyed while we still have a parent. |
| DCHECK(!parent()); |
| // Similarly we shouldn't have a layer tree host since it also keeps a |
| // reference to us. |
| DCHECK(!layer_tree_host()); |
| |
| RemoveFromScrollTree(); |
| RemoveFromClipTree(); |
| |
| // Remove the parent reference from all children and dependents. |
| RemoveAllChildren(); |
| if (mask_layer_.get()) { |
| DCHECK_EQ(this, mask_layer_->parent()); |
| mask_layer_->RemoveFromParent(); |
| } |
| if (replica_layer_.get()) { |
| DCHECK_EQ(this, replica_layer_->parent()); |
| replica_layer_->RemoveFromParent(); |
| } |
| } |
| |
| void Layer::SetLayerTreeHost(LayerTreeHost* host) { |
| if (layer_tree_host_ == host) |
| return; |
| |
| if (layer_tree_host_) { |
| layer_tree_host_->property_trees()->needs_rebuild = true; |
| layer_tree_host_->UnregisterLayer(this); |
| } |
| if (host) { |
| host->property_trees()->needs_rebuild = true; |
| host->RegisterLayer(this); |
| } |
| |
| layer_tree_host_ = host; |
| InvalidatePropertyTreesIndices(); |
| |
| // When changing hosts, the layer needs to commit its properties to the impl |
| // side for the new host. |
| SetNeedsPushProperties(); |
| |
| for (size_t i = 0; i < children_.size(); ++i) |
| children_[i]->SetLayerTreeHost(host); |
| |
| if (mask_layer_.get()) |
| mask_layer_->SetLayerTreeHost(host); |
| if (replica_layer_.get()) |
| replica_layer_->SetLayerTreeHost(host); |
| |
| const bool has_any_animation = |
| layer_tree_host_ ? layer_tree_host_->HasAnyAnimation(this) : false; |
| |
| if (host && has_any_animation) |
| host->SetNeedsCommit(); |
| } |
| |
| void Layer::SetNeedsUpdate() { |
| if (layer_tree_host_ && !ignore_set_needs_commit_) |
| layer_tree_host_->SetNeedsUpdateLayers(); |
| } |
| |
| void Layer::SetNeedsCommit() { |
| if (!layer_tree_host_) |
| return; |
| |
| SetNeedsPushProperties(); |
| layer_tree_host_->property_trees()->needs_rebuild = true; |
| |
| if (ignore_set_needs_commit_) |
| return; |
| |
| layer_tree_host_->SetNeedsCommit(); |
| } |
| |
| void Layer::SetNeedsCommitNoRebuild() { |
| if (!layer_tree_host_) |
| return; |
| |
| SetNeedsPushProperties(); |
| |
| if (ignore_set_needs_commit_) |
| return; |
| |
| layer_tree_host_->SetNeedsCommit(); |
| } |
| |
| void Layer::SetNeedsFullTreeSync() { |
| if (!layer_tree_host_) |
| return; |
| |
| layer_tree_host_->SetNeedsFullTreeSync(); |
| } |
| |
| void Layer::SetNextCommitWaitsForActivation() { |
| if (!layer_tree_host_) |
| return; |
| |
| layer_tree_host_->SetNextCommitWaitsForActivation(); |
| } |
| |
| void Layer::SetNeedsPushProperties() { |
| if (layer_tree_host_) |
| layer_tree_host_->AddLayerShouldPushProperties(this); |
| } |
| |
| void Layer::ResetNeedsPushPropertiesForTesting() { |
| layer_tree_host_->RemoveLayerShouldPushProperties(this); |
| } |
| |
| bool Layer::IsPropertyChangeAllowed() const { |
| if (!layer_tree_host_) |
| return true; |
| |
| return !layer_tree_host_->in_paint_layer_contents(); |
| } |
| |
| sk_sp<SkPicture> Layer::GetPicture() const { |
| return nullptr; |
| } |
| |
| void Layer::SetParent(Layer* layer) { |
| DCHECK(!layer || !layer->HasAncestor(this)); |
| |
| parent_ = layer; |
| SetLayerTreeHost(parent_ ? parent_->layer_tree_host() : nullptr); |
| |
| if (!layer_tree_host_) |
| return; |
| |
| layer_tree_host_->property_trees()->needs_rebuild = true; |
| } |
| |
| void Layer::AddChild(scoped_refptr<Layer> child) { |
| InsertChild(child, children_.size()); |
| } |
| |
| void Layer::InsertChild(scoped_refptr<Layer> child, size_t index) { |
| DCHECK(IsPropertyChangeAllowed()); |
| child->RemoveFromParent(); |
| AddDrawableDescendants(child->NumDescendantsThatDrawContent() + |
| (child->DrawsContent() ? 1 : 0)); |
| child->SetParent(this); |
| child->SetSubtreePropertyChanged(); |
| |
| index = std::min(index, children_.size()); |
| children_.insert(children_.begin() + index, child); |
| SetNeedsFullTreeSync(); |
| } |
| |
| void Layer::RemoveFromParent() { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (parent_) |
| parent_->RemoveChildOrDependent(this); |
| } |
| |
| void Layer::RemoveChildOrDependent(Layer* child) { |
| if (mask_layer_.get() == child) { |
| mask_layer_->SetParent(nullptr); |
| mask_layer_ = nullptr; |
| SetNeedsFullTreeSync(); |
| return; |
| } |
| if (replica_layer_.get() == child) { |
| replica_layer_->SetParent(nullptr); |
| replica_layer_ = nullptr; |
| SetNeedsFullTreeSync(); |
| return; |
| } |
| |
| for (LayerList::iterator iter = children_.begin(); |
| iter != children_.end(); |
| ++iter) { |
| if (iter->get() != child) |
| continue; |
| |
| child->SetParent(nullptr); |
| AddDrawableDescendants(-child->NumDescendantsThatDrawContent() - |
| (child->DrawsContent() ? 1 : 0)); |
| children_.erase(iter); |
| SetNeedsFullTreeSync(); |
| return; |
| } |
| } |
| |
| void Layer::ReplaceChild(Layer* reference, scoped_refptr<Layer> new_layer) { |
| DCHECK(reference); |
| DCHECK_EQ(reference->parent(), this); |
| DCHECK(IsPropertyChangeAllowed()); |
| |
| if (reference == new_layer.get()) |
| return; |
| |
| // Find the index of |reference| in |children_|. |
| auto reference_it = |
| std::find_if(children_.begin(), children_.end(), |
| [reference](const scoped_refptr<Layer>& layer) { |
| return layer.get() == reference; |
| }); |
| DCHECK(reference_it != children_.end()); |
| size_t reference_index = reference_it - children_.begin(); |
| reference->RemoveFromParent(); |
| |
| if (new_layer.get()) { |
| new_layer->RemoveFromParent(); |
| InsertChild(new_layer, reference_index); |
| } |
| } |
| |
| void Layer::SetBounds(const gfx::Size& size) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (bounds() == size) |
| return; |
| bounds_ = size; |
| |
| if (!layer_tree_host_) |
| return; |
| |
| if (masks_to_bounds()) |
| SetSubtreePropertyChanged(); |
| SetNeedsCommit(); |
| } |
| |
| Layer* Layer::RootLayer() { |
| Layer* layer = this; |
| while (layer->parent()) |
| layer = layer->parent(); |
| return layer; |
| } |
| |
| void Layer::RemoveAllChildren() { |
| DCHECK(IsPropertyChangeAllowed()); |
| while (children_.size()) { |
| Layer* layer = children_[0].get(); |
| DCHECK_EQ(this, layer->parent()); |
| layer->RemoveFromParent(); |
| } |
| } |
| |
| void Layer::SetChildren(const LayerList& children) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (children == children_) |
| return; |
| |
| RemoveAllChildren(); |
| for (size_t i = 0; i < children.size(); ++i) |
| AddChild(children[i]); |
| } |
| |
| bool Layer::HasAncestor(const Layer* ancestor) const { |
| for (const Layer* layer = parent(); layer; layer = layer->parent()) { |
| if (layer == ancestor) |
| return true; |
| } |
| return false; |
| } |
| |
| void Layer::RequestCopyOfOutput(std::unique_ptr<CopyOutputRequest> request) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (void* source = request->source()) { |
| auto it = |
| std::find_if(copy_requests_.begin(), copy_requests_.end(), |
| [source](const std::unique_ptr<CopyOutputRequest>& x) { |
| return x->source() == source; |
| }); |
| if (it != copy_requests_.end()) |
| copy_requests_.erase(it); |
| } |
| if (request->IsEmpty()) |
| return; |
| copy_requests_.push_back(std::move(request)); |
| SetSubtreePropertyChanged(); |
| SetNeedsCommit(); |
| } |
| |
| void Layer::SetBackgroundColor(SkColor background_color) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (background_color_ == background_color) |
| return; |
| background_color_ = background_color; |
| SetNeedsCommit(); |
| } |
| |
| void Layer::SetSafeOpaqueBackgroundColor(SkColor background_color) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (safe_opaque_background_color_ == background_color) |
| return; |
| safe_opaque_background_color_ = background_color; |
| SetNeedsPushProperties(); |
| } |
| |
| SkColor Layer::SafeOpaqueBackgroundColor() const { |
| if (contents_opaque()) |
| return safe_opaque_background_color_; |
| SkColor color = background_color(); |
| if (SkColorGetA(color) == 255) |
| color = SK_ColorTRANSPARENT; |
| return color; |
| } |
| |
| void Layer::SetMasksToBounds(bool masks_to_bounds) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (masks_to_bounds_ == masks_to_bounds) |
| return; |
| masks_to_bounds_ = masks_to_bounds; |
| SetNeedsCommit(); |
| SetSubtreePropertyChanged(); |
| } |
| |
| void Layer::SetMaskLayer(Layer* mask_layer) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (mask_layer_.get() == mask_layer) |
| return; |
| if (mask_layer_.get()) { |
| DCHECK_EQ(this, mask_layer_->parent()); |
| mask_layer_->RemoveFromParent(); |
| } |
| mask_layer_ = mask_layer; |
| if (mask_layer_.get()) { |
| mask_layer_->RemoveFromParent(); |
| DCHECK(!mask_layer_->parent()); |
| mask_layer_->SetParent(this); |
| mask_layer_->SetIsMask(true); |
| } |
| SetSubtreePropertyChanged(); |
| SetNeedsFullTreeSync(); |
| } |
| |
| void Layer::SetReplicaLayer(Layer* layer) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (replica_layer_.get() == layer) |
| return; |
| if (replica_layer_.get()) { |
| DCHECK_EQ(this, replica_layer_->parent()); |
| replica_layer_->RemoveFromParent(); |
| } |
| replica_layer_ = layer; |
| if (replica_layer_.get()) { |
| DCHECK(!replica_layer_->parent()); |
| replica_layer_->RemoveFromParent(); |
| replica_layer_->SetParent(this); |
| } |
| SetSubtreePropertyChanged(); |
| SetNeedsFullTreeSync(); |
| } |
| |
| void Layer::SetFilters(const FilterOperations& filters) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (filters_ == filters) |
| return; |
| filters_ = filters; |
| SetSubtreePropertyChanged(); |
| SetNeedsCommit(); |
| } |
| |
| bool Layer::FilterIsAnimating() const { |
| DCHECK(layer_tree_host_); |
| return layer_tree_host_->IsAnimatingFilterProperty(this); |
| } |
| |
| bool Layer::HasPotentiallyRunningFilterAnimation() const { |
| return layer_tree_host_->HasPotentiallyRunningFilterAnimation(this); |
| } |
| |
| void Layer::SetBackgroundFilters(const FilterOperations& filters) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (background_filters_ == filters) |
| return; |
| background_filters_ = filters; |
| SetNeedsCommit(); |
| } |
| |
| void Layer::SetOpacity(float opacity) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (opacity_ == opacity) |
| return; |
| opacity_ = opacity; |
| SetSubtreePropertyChanged(); |
| SetNeedsCommit(); |
| } |
| |
| float Layer::EffectiveOpacity() const { |
| return hide_layer_and_subtree_ ? 0.f : opacity_; |
| } |
| |
| bool Layer::OpacityIsAnimating() const { |
| DCHECK(layer_tree_host_); |
| return layer_tree_host_->IsAnimatingOpacityProperty(this); |
| } |
| |
| bool Layer::HasPotentiallyRunningOpacityAnimation() const { |
| return layer_tree_host_->HasPotentiallyRunningOpacityAnimation(this); |
| } |
| |
| bool Layer::OpacityCanAnimateOnImplThread() const { |
| return false; |
| } |
| |
| void Layer::SetBlendMode(SkXfermode::Mode blend_mode) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (blend_mode_ == blend_mode) |
| return; |
| |
| // Allowing only blend modes that are defined in the CSS Compositing standard: |
| // http://dev.w3.org/fxtf/compositing-1/#blending |
| switch (blend_mode) { |
| case SkXfermode::kSrcOver_Mode: |
| case SkXfermode::kScreen_Mode: |
| case SkXfermode::kOverlay_Mode: |
| case SkXfermode::kDarken_Mode: |
| case SkXfermode::kLighten_Mode: |
| case SkXfermode::kColorDodge_Mode: |
| case SkXfermode::kColorBurn_Mode: |
| case SkXfermode::kHardLight_Mode: |
| case SkXfermode::kSoftLight_Mode: |
| case SkXfermode::kDifference_Mode: |
| case SkXfermode::kExclusion_Mode: |
| case SkXfermode::kMultiply_Mode: |
| case SkXfermode::kHue_Mode: |
| case SkXfermode::kSaturation_Mode: |
| case SkXfermode::kColor_Mode: |
| case SkXfermode::kLuminosity_Mode: |
| // supported blend modes |
| break; |
| case SkXfermode::kClear_Mode: |
| case SkXfermode::kSrc_Mode: |
| case SkXfermode::kDst_Mode: |
| case SkXfermode::kDstOver_Mode: |
| case SkXfermode::kSrcIn_Mode: |
| case SkXfermode::kDstIn_Mode: |
| case SkXfermode::kSrcOut_Mode: |
| case SkXfermode::kDstOut_Mode: |
| case SkXfermode::kSrcATop_Mode: |
| case SkXfermode::kDstATop_Mode: |
| case SkXfermode::kXor_Mode: |
| case SkXfermode::kPlus_Mode: |
| case SkXfermode::kModulate_Mode: |
| // Porter Duff Compositing Operators are not yet supported |
| // http://dev.w3.org/fxtf/compositing-1/#porterduffcompositingoperators |
| NOTREACHED(); |
| return; |
| } |
| |
| blend_mode_ = blend_mode; |
| SetNeedsCommit(); |
| SetSubtreePropertyChanged(); |
| } |
| |
| void Layer::SetIsRootForIsolatedGroup(bool root) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (is_root_for_isolated_group_ == root) |
| return; |
| is_root_for_isolated_group_ = root; |
| SetNeedsCommit(); |
| } |
| |
| void Layer::SetContentsOpaque(bool opaque) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (contents_opaque_ == opaque) |
| return; |
| contents_opaque_ = opaque; |
| SetNeedsCommit(); |
| SetSubtreePropertyChanged(); |
| } |
| |
| void Layer::SetPosition(const gfx::PointF& position) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (position_ == position) |
| return; |
| position_ = position; |
| |
| if (!layer_tree_host_) |
| return; |
| |
| SetSubtreePropertyChanged(); |
| if (TransformNode* transform_node = |
| layer_tree_host_->property_trees()->transform_tree.Node( |
| transform_tree_index())) { |
| if (transform_node->owner_id == id()) { |
| transform_node->data.update_post_local_transform(position, |
| transform_origin()); |
| transform_node->data.needs_local_transform_update = true; |
| transform_node->data.transform_changed = true; |
| layer_tree_host_->property_trees()->transform_tree.set_needs_update(true); |
| SetNeedsCommitNoRebuild(); |
| return; |
| } |
| } |
| |
| SetNeedsCommit(); |
| } |
| |
| bool Layer::IsContainerForFixedPositionLayers() const { |
| if (!transform_.IsIdentityOrTranslation()) |
| return true; |
| if (parent_ && !parent_->transform_.IsIdentityOrTranslation()) |
| return true; |
| return is_container_for_fixed_position_layers_; |
| } |
| |
| bool Are2dAxisAligned(const gfx::Transform& a, const gfx::Transform& b) { |
| if (a.IsScaleOrTranslation() && b.IsScaleOrTranslation()) { |
| return true; |
| } |
| |
| gfx::Transform inverse(gfx::Transform::kSkipInitialization); |
| if (b.GetInverse(&inverse)) { |
| inverse *= a; |
| return inverse.Preserves2dAxisAlignment(); |
| } else { |
| // TODO(weiliangc): Should return false because b is not invertible. |
| return a.Preserves2dAxisAlignment(); |
| } |
| } |
| |
| void Layer::SetTransform(const gfx::Transform& transform) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (transform_ == transform) |
| return; |
| |
| SetSubtreePropertyChanged(); |
| if (layer_tree_host_) { |
| if (TransformNode* transform_node = |
| layer_tree_host_->property_trees()->transform_tree.Node( |
| transform_tree_index())) { |
| if (transform_node->owner_id == id()) { |
| // We need to trigger a rebuild if we could have affected 2d axis |
| // alignment. We'll check to see if transform and transform_ are axis |
| // align with respect to one another. |
| bool preserves_2d_axis_alignment = |
| Are2dAxisAligned(transform_, transform); |
| transform_node->data.local = transform; |
| transform_node->data.needs_local_transform_update = true; |
| transform_node->data.transform_changed = true; |
| layer_tree_host_->property_trees()->transform_tree.set_needs_update( |
| true); |
| if (preserves_2d_axis_alignment) |
| SetNeedsCommitNoRebuild(); |
| else |
| SetNeedsCommit(); |
| transform_ = transform; |
| return; |
| } |
| } |
| } |
| |
| transform_ = transform; |
| |
| SetNeedsCommit(); |
| } |
| |
| void Layer::SetTransformOrigin(const gfx::Point3F& transform_origin) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (transform_origin_ == transform_origin) |
| return; |
| transform_origin_ = transform_origin; |
| |
| if (!layer_tree_host_) |
| return; |
| |
| SetSubtreePropertyChanged(); |
| if (TransformNode* transform_node = |
| layer_tree_host_->property_trees()->transform_tree.Node( |
| transform_tree_index())) { |
| if (transform_node->owner_id == id()) { |
| transform_node->data.update_pre_local_transform(transform_origin); |
| transform_node->data.update_post_local_transform(position(), |
| transform_origin); |
| transform_node->data.needs_local_transform_update = true; |
| transform_node->data.transform_changed = true; |
| layer_tree_host_->property_trees()->transform_tree.set_needs_update(true); |
| SetNeedsCommitNoRebuild(); |
| return; |
| } |
| } |
| |
| SetNeedsCommit(); |
| } |
| |
| bool Layer::AnimationsPreserveAxisAlignment() const { |
| DCHECK(layer_tree_host_); |
| return layer_tree_host_->AnimationsPreserveAxisAlignment(this); |
| } |
| |
| bool Layer::TransformIsAnimating() const { |
| DCHECK(layer_tree_host_); |
| return layer_tree_host_->IsAnimatingTransformProperty(this); |
| } |
| |
| bool Layer::HasPotentiallyRunningTransformAnimation() const { |
| return layer_tree_host_->HasPotentiallyRunningTransformAnimation(this); |
| } |
| |
| bool Layer::HasOnlyTranslationTransforms() const { |
| return layer_tree_host_->HasOnlyTranslationTransforms(this); |
| } |
| |
| bool Layer::MaximumTargetScale(float* max_scale) const { |
| return layer_tree_host_->MaximumTargetScale(this, max_scale); |
| } |
| |
| bool Layer::AnimationStartScale(float* start_scale) const { |
| return layer_tree_host_->AnimationStartScale(this, start_scale); |
| } |
| |
| bool Layer::HasAnyAnimationTargetingProperty( |
| TargetProperty::Type property) const { |
| return layer_tree_host_->HasAnyAnimationTargetingProperty(this, property); |
| } |
| |
| bool Layer::ScrollOffsetAnimationWasInterrupted() const { |
| DCHECK(layer_tree_host_); |
| return layer_tree_host_->ScrollOffsetAnimationWasInterrupted(this); |
| } |
| |
| void Layer::SetScrollParent(Layer* parent) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (scroll_parent_ == parent) |
| return; |
| |
| if (scroll_parent_) |
| scroll_parent_->RemoveScrollChild(this); |
| |
| scroll_parent_ = parent; |
| |
| if (scroll_parent_) |
| scroll_parent_->AddScrollChild(this); |
| |
| SetNeedsCommit(); |
| } |
| |
| void Layer::AddScrollChild(Layer* child) { |
| if (!scroll_children_) |
| scroll_children_.reset(new std::set<Layer*>); |
| scroll_children_->insert(child); |
| SetNeedsCommit(); |
| } |
| |
| void Layer::RemoveScrollChild(Layer* child) { |
| scroll_children_->erase(child); |
| if (scroll_children_->empty()) |
| scroll_children_ = nullptr; |
| SetNeedsCommit(); |
| } |
| |
| void Layer::SetClipParent(Layer* ancestor) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (clip_parent_ == ancestor) |
| return; |
| |
| if (clip_parent_) |
| clip_parent_->RemoveClipChild(this); |
| |
| clip_parent_ = ancestor; |
| |
| if (clip_parent_) |
| clip_parent_->AddClipChild(this); |
| |
| SetNeedsCommit(); |
| if (layer_tree_host_) |
| layer_tree_host_->SetNeedsMetaInfoRecomputation(true); |
| } |
| |
| void Layer::AddClipChild(Layer* child) { |
| if (!clip_children_) |
| clip_children_.reset(new std::set<Layer*>); |
| clip_children_->insert(child); |
| SetNeedsCommit(); |
| } |
| |
| void Layer::RemoveClipChild(Layer* child) { |
| clip_children_->erase(child); |
| if (clip_children_->empty()) |
| clip_children_ = nullptr; |
| SetNeedsCommit(); |
| } |
| |
| void Layer::SetScrollOffset(const gfx::ScrollOffset& scroll_offset) { |
| DCHECK(IsPropertyChangeAllowed()); |
| |
| if (scroll_offset_ == scroll_offset) |
| return; |
| scroll_offset_ = scroll_offset; |
| |
| if (!layer_tree_host_) |
| return; |
| |
| if (scroll_tree_index() != -1 && scrollable()) |
| layer_tree_host_->property_trees()->scroll_tree.SetScrollOffset( |
| id(), scroll_offset); |
| |
| if (TransformNode* transform_node = |
| layer_tree_host_->property_trees()->transform_tree.Node( |
| transform_tree_index())) { |
| if (transform_node->owner_id == id()) { |
| transform_node->data.scroll_offset = CurrentScrollOffset(); |
| transform_node->data.needs_local_transform_update = true; |
| layer_tree_host_->property_trees()->transform_tree.set_needs_update(true); |
| SetNeedsCommitNoRebuild(); |
| return; |
| } |
| } |
| |
| SetNeedsCommit(); |
| } |
| |
| void Layer::SetScrollOffsetFromImplSide( |
| const gfx::ScrollOffset& scroll_offset) { |
| DCHECK(IsPropertyChangeAllowed()); |
| // This function only gets called during a BeginMainFrame, so there |
| // is no need to call SetNeedsUpdate here. |
| DCHECK(layer_tree_host_ && layer_tree_host_->CommitRequested()); |
| if (scroll_offset_ == scroll_offset) |
| return; |
| scroll_offset_ = scroll_offset; |
| SetNeedsPushProperties(); |
| |
| bool needs_rebuild = true; |
| |
| if (scroll_tree_index() != -1 && scrollable()) |
| layer_tree_host_->property_trees()->scroll_tree.SetScrollOffset( |
| id(), scroll_offset); |
| |
| if (TransformNode* transform_node = |
| layer_tree_host_->property_trees()->transform_tree.Node( |
| transform_tree_index())) { |
| if (transform_node->owner_id == id()) { |
| transform_node->data.scroll_offset = CurrentScrollOffset(); |
| transform_node->data.needs_local_transform_update = true; |
| layer_tree_host_->property_trees()->transform_tree.set_needs_update(true); |
| needs_rebuild = false; |
| } |
| } |
| |
| if (needs_rebuild) |
| layer_tree_host_->property_trees()->needs_rebuild = true; |
| |
| if (!did_scroll_callback_.is_null()) |
| did_scroll_callback_.Run(); |
| // The callback could potentially change the layer structure: |
| // "this" may have been destroyed during the process. |
| } |
| |
| void Layer::SetScrollClipLayerId(int clip_layer_id) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (scroll_clip_layer_id_ == clip_layer_id) |
| return; |
| scroll_clip_layer_id_ = clip_layer_id; |
| SetNeedsCommit(); |
| } |
| |
| Layer* Layer::scroll_clip_layer() const { |
| return layer_tree_host()->LayerById(scroll_clip_layer_id_); |
| } |
| |
| void Layer::SetUserScrollable(bool horizontal, bool vertical) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (user_scrollable_horizontal_ == horizontal && |
| user_scrollable_vertical_ == vertical) |
| return; |
| user_scrollable_horizontal_ = horizontal; |
| user_scrollable_vertical_ = vertical; |
| SetNeedsCommit(); |
| } |
| |
| void Layer::AddMainThreadScrollingReasons( |
| uint32_t main_thread_scrolling_reasons) { |
| DCHECK(IsPropertyChangeAllowed()); |
| DCHECK(main_thread_scrolling_reasons); |
| uint32_t new_reasons = |
| main_thread_scrolling_reasons_ | main_thread_scrolling_reasons; |
| if (main_thread_scrolling_reasons_ == new_reasons) |
| return; |
| main_thread_scrolling_reasons_ = new_reasons; |
| SetNeedsCommit(); |
| } |
| |
| void Layer::ClearMainThreadScrollingReasons( |
| uint32_t main_thread_scrolling_reasons_to_clear) { |
| DCHECK(IsPropertyChangeAllowed()); |
| DCHECK(main_thread_scrolling_reasons_to_clear); |
| uint32_t new_reasons = |
| ~main_thread_scrolling_reasons_to_clear & main_thread_scrolling_reasons_; |
| if (new_reasons == main_thread_scrolling_reasons_) |
| return; |
| main_thread_scrolling_reasons_ = new_reasons; |
| SetNeedsCommit(); |
| } |
| |
| void Layer::SetNonFastScrollableRegion(const Region& region) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (non_fast_scrollable_region_ == region) |
| return; |
| non_fast_scrollable_region_ = region; |
| SetNeedsCommit(); |
| } |
| |
| void Layer::SetTouchEventHandlerRegion(const Region& region) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (touch_event_handler_region_ == region) |
| return; |
| |
| touch_event_handler_region_ = region; |
| SetNeedsCommit(); |
| } |
| |
| void Layer::SetForceRenderSurfaceForTesting(bool force) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (force_render_surface_for_testing_ == force) |
| return; |
| force_render_surface_for_testing_ = force; |
| SetNeedsCommit(); |
| } |
| |
| void Layer::SetDoubleSided(bool double_sided) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (double_sided_ == double_sided) |
| return; |
| double_sided_ = double_sided; |
| SetNeedsCommit(); |
| SetSubtreePropertyChanged(); |
| } |
| |
| void Layer::Set3dSortingContextId(int id) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (id == sorting_context_id_) |
| return; |
| sorting_context_id_ = id; |
| SetNeedsCommit(); |
| SetSubtreePropertyChanged(); |
| } |
| |
| void Layer::SetTransformTreeIndex(int index) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (transform_tree_index_ == index) |
| return; |
| transform_tree_index_ = index; |
| SetNeedsPushProperties(); |
| } |
| |
| int Layer::transform_tree_index() const { |
| if (!layer_tree_host_ || |
| layer_tree_host_->property_trees()->sequence_number != |
| property_tree_sequence_number_) { |
| return -1; |
| } |
| return transform_tree_index_; |
| } |
| |
| void Layer::SetClipTreeIndex(int index) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (clip_tree_index_ == index) |
| return; |
| clip_tree_index_ = index; |
| SetNeedsPushProperties(); |
| } |
| |
| int Layer::clip_tree_index() const { |
| if (!layer_tree_host_ || |
| layer_tree_host_->property_trees()->sequence_number != |
| property_tree_sequence_number_) { |
| return -1; |
| } |
| return clip_tree_index_; |
| } |
| |
| void Layer::SetEffectTreeIndex(int index) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (effect_tree_index_ == index) |
| return; |
| effect_tree_index_ = index; |
| SetNeedsPushProperties(); |
| } |
| |
| int Layer::effect_tree_index() const { |
| if (!layer_tree_host_ || |
| layer_tree_host_->property_trees()->sequence_number != |
| property_tree_sequence_number_) { |
| return -1; |
| } |
| return effect_tree_index_; |
| } |
| |
| void Layer::SetScrollTreeIndex(int index) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (scroll_tree_index_ == index) |
| return; |
| scroll_tree_index_ = index; |
| SetNeedsPushProperties(); |
| } |
| |
| int Layer::scroll_tree_index() const { |
| if (!layer_tree_host_ || |
| layer_tree_host_->property_trees()->sequence_number != |
| property_tree_sequence_number_) { |
| return -1; |
| } |
| return scroll_tree_index_; |
| } |
| |
| void Layer::InvalidatePropertyTreesIndices() { |
| int invalid_property_tree_index = -1; |
| SetTransformTreeIndex(invalid_property_tree_index); |
| SetClipTreeIndex(invalid_property_tree_index); |
| SetEffectTreeIndex(invalid_property_tree_index); |
| } |
| |
| void Layer::SetShouldFlattenTransform(bool should_flatten) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (should_flatten_transform_ == should_flatten) |
| return; |
| should_flatten_transform_ = should_flatten; |
| SetNeedsCommit(); |
| SetSubtreePropertyChanged(); |
| } |
| |
| void Layer::SetUseParentBackfaceVisibility(bool use) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (use_parent_backface_visibility_ == use) |
| return; |
| use_parent_backface_visibility_ = use; |
| SetNeedsPushProperties(); |
| } |
| |
| void Layer::SetUseLocalTransformForBackfaceVisibility(bool use_local) { |
| if (use_local_transform_for_backface_visibility_ == use_local) |
| return; |
| use_local_transform_for_backface_visibility_ = use_local; |
| SetNeedsPushProperties(); |
| } |
| |
| void Layer::SetShouldCheckBackfaceVisibility( |
| bool should_check_backface_visibility) { |
| if (should_check_backface_visibility_ == should_check_backface_visibility) |
| return; |
| should_check_backface_visibility_ = should_check_backface_visibility; |
| SetNeedsPushProperties(); |
| } |
| |
| void Layer::SetIsDrawable(bool is_drawable) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (is_drawable_ == is_drawable) |
| return; |
| |
| is_drawable_ = is_drawable; |
| UpdateDrawsContent(HasDrawableContent()); |
| } |
| |
| void Layer::SetHideLayerAndSubtree(bool hide) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (hide_layer_and_subtree_ == hide) |
| return; |
| |
| hide_layer_and_subtree_ = hide; |
| SetNeedsCommit(); |
| SetSubtreePropertyChanged(); |
| } |
| |
| void Layer::SetNeedsDisplayRect(const gfx::Rect& dirty_rect) { |
| if (dirty_rect.IsEmpty()) |
| return; |
| |
| SetNeedsPushProperties(); |
| update_rect_.Union(dirty_rect); |
| |
| if (DrawsContent()) |
| SetNeedsUpdate(); |
| } |
| |
| bool Layer::DescendantIsFixedToContainerLayer() const { |
| for (size_t i = 0; i < children_.size(); ++i) { |
| if (children_[i]->position_constraint_.is_fixed_position() || |
| children_[i]->DescendantIsFixedToContainerLayer()) |
| return true; |
| } |
| return false; |
| } |
| |
| void Layer::SetIsContainerForFixedPositionLayers(bool container) { |
| if (is_container_for_fixed_position_layers_ == container) |
| return; |
| is_container_for_fixed_position_layers_ = container; |
| |
| if (layer_tree_host_ && layer_tree_host_->CommitRequested()) |
| return; |
| |
| // Only request a commit if we have a fixed positioned descendant. |
| if (DescendantIsFixedToContainerLayer()) |
| SetNeedsCommit(); |
| } |
| |
| void Layer::SetPositionConstraint(const LayerPositionConstraint& constraint) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (position_constraint_ == constraint) |
| return; |
| position_constraint_ = constraint; |
| SetNeedsCommit(); |
| } |
| |
| static void RunCopyCallbackOnMainThread( |
| std::unique_ptr<CopyOutputRequest> request, |
| std::unique_ptr<CopyOutputResult> result) { |
| request->SendResult(std::move(result)); |
| } |
| |
| static void PostCopyCallbackToMainThread( |
| scoped_refptr<base::SingleThreadTaskRunner> main_thread_task_runner, |
| std::unique_ptr<CopyOutputRequest> request, |
| std::unique_ptr<CopyOutputResult> result) { |
| main_thread_task_runner->PostTask(FROM_HERE, |
| base::Bind(&RunCopyCallbackOnMainThread, |
| base::Passed(&request), |
| base::Passed(&result))); |
| } |
| |
| void Layer::PushPropertiesTo(LayerImpl* layer) { |
| TRACE_EVENT0("cc", "Layer::PushPropertiesTo"); |
| DCHECK(layer_tree_host_); |
| |
| // If we did not SavePaintProperties() for the layer this frame, then push the |
| // real property values, not the paint property values. |
| bool use_paint_properties = paint_properties_.source_frame_number == |
| layer_tree_host_->source_frame_number(); |
| |
| layer->SetBackgroundColor(background_color_); |
| layer->SetSafeOpaqueBackgroundColor(safe_opaque_background_color_); |
| layer->SetBounds(use_paint_properties ? paint_properties_.bounds |
| : bounds_); |
| |
| #if defined(NDEBUG) |
| if (frame_viewer_instrumentation::IsTracingLayerTreeSnapshots()) |
| layer->SetDebugInfo(TakeDebugInfo()); |
| #else |
| layer->SetDebugInfo(TakeDebugInfo()); |
| #endif |
| |
| layer->SetTransformTreeIndex(transform_tree_index()); |
| layer->SetEffectTreeIndex(effect_tree_index()); |
| layer->SetClipTreeIndex(clip_tree_index()); |
| layer->SetScrollTreeIndex(scroll_tree_index()); |
| layer->set_offset_to_transform_parent(offset_to_transform_parent_); |
| layer->SetDrawsContent(DrawsContent()); |
| layer->SetHideLayerAndSubtree(hide_layer_and_subtree_); |
| // subtree_property_changed_ is propagated to all descendants while building |
| // property trees. So, it is enough to check it only for the current layer. |
| if (subtree_property_changed_) |
| layer->NoteLayerPropertyChanged(); |
| if (!layer->FilterIsAnimatingOnImplOnly() && !FilterIsAnimating()) |
| layer->SetFilters(filters_); |
| DCHECK(!(FilterIsAnimating() && layer->FilterIsAnimatingOnImplOnly())); |
| layer->SetBackgroundFilters(background_filters()); |
| layer->SetMasksToBounds(masks_to_bounds_); |
| layer->set_main_thread_scrolling_reasons(main_thread_scrolling_reasons_); |
| layer->SetNonFastScrollableRegion(non_fast_scrollable_region_); |
| layer->SetTouchEventHandlerRegion(touch_event_handler_region_); |
| layer->SetContentsOpaque(contents_opaque_); |
| if (!layer->OpacityIsAnimatingOnImplOnly() && !OpacityIsAnimating()) |
| layer->SetOpacity(opacity_); |
| DCHECK(!(OpacityIsAnimating() && layer->OpacityIsAnimatingOnImplOnly())); |
| layer->SetBlendMode(blend_mode_); |
| layer->SetPosition(position_); |
| layer->set_should_flatten_transform_from_property_tree( |
| should_flatten_transform_from_property_tree_); |
| layer->set_draw_blend_mode(draw_blend_mode_); |
| layer->SetUseParentBackfaceVisibility(use_parent_backface_visibility_); |
| layer->SetUseLocalTransformForBackfaceVisibility( |
| use_local_transform_for_backface_visibility_); |
| layer->SetShouldCheckBackfaceVisibility(should_check_backface_visibility_); |
| if (!layer->TransformIsAnimatingOnImplOnly() && !TransformIsAnimating()) |
| layer->SetTransform(transform_); |
| DCHECK(!(TransformIsAnimating() && layer->TransformIsAnimatingOnImplOnly())); |
| layer->Set3dSortingContextId(sorting_context_id_); |
| |
| layer->SetScrollClipLayer(scroll_clip_layer_id_); |
| layer->set_user_scrollable_horizontal(user_scrollable_horizontal_); |
| layer->set_user_scrollable_vertical(user_scrollable_vertical_); |
| layer->SetElementId(element_id_); |
| layer->SetMutableProperties(mutable_properties_); |
| |
| // When a scroll offset animation is interrupted the new scroll position on |
| // the pending tree will clobber any impl-side scrolling occuring on the |
| // active tree. To do so, avoid scrolling the pending tree along with it |
| // instead of trying to undo that scrolling later. |
| if (ScrollOffsetAnimationWasInterrupted()) |
| layer_tree_host() |
| ->property_trees() |
| ->scroll_tree.SetScrollOffsetClobberActiveValue(layer->id()); |
| |
| { |
| TRACE_EVENT0("cc", "Layer::PushPropertiesTo::CopyOutputRequests"); |
| // Wrap the copy_requests_ in a PostTask to the main thread. |
| std::vector<std::unique_ptr<CopyOutputRequest>> main_thread_copy_requests; |
| for (auto it = copy_requests_.begin(); it != copy_requests_.end(); ++it) { |
| scoped_refptr<base::SingleThreadTaskRunner> main_thread_task_runner = |
| layer_tree_host()->task_runner_provider()->MainThreadTaskRunner(); |
| std::unique_ptr<CopyOutputRequest> original_request = std::move(*it); |
| const CopyOutputRequest& original_request_ref = *original_request; |
| std::unique_ptr<CopyOutputRequest> main_thread_request = |
| CopyOutputRequest::CreateRelayRequest( |
| original_request_ref, |
| base::Bind(&PostCopyCallbackToMainThread, main_thread_task_runner, |
| base::Passed(&original_request))); |
| main_thread_copy_requests.push_back(std::move(main_thread_request)); |
| } |
| if (!copy_requests_.empty() && layer_tree_host_) |
| layer_tree_host_->property_trees()->needs_rebuild = true; |
| |
| copy_requests_.clear(); |
| layer->PassCopyRequests(&main_thread_copy_requests); |
| } |
| |
| // If the main thread commits multiple times before the impl thread actually |
| // draws, then damage tracking will become incorrect if we simply clobber the |
| // update_rect here. The LayerImpl's update_rect needs to accumulate (i.e. |
| // union) any update changes that have occurred on the main thread. |
| update_rect_.Union(layer->update_rect()); |
| layer->SetUpdateRect(update_rect_); |
| |
| // Reset any state that should be cleared for the next update. |
| subtree_property_changed_ = false; |
| update_rect_ = gfx::Rect(); |
| |
| layer_tree_host()->RemoveLayerShouldPushProperties(this); |
| } |
| |
| void Layer::SetTypeForProtoSerialization(proto::LayerNode* proto) const { |
| proto->set_type(proto::LayerNode::LAYER); |
| } |
| |
| void Layer::ToLayerNodeProto(proto::LayerNode* proto) const { |
| proto->set_id(layer_id_); |
| SetTypeForProtoSerialization(proto); |
| |
| if (parent_) |
| proto->set_parent_id(parent_->id()); |
| |
| DCHECK_EQ(0, proto->children_size()); |
| for (const auto& child : children_) { |
| child->ToLayerNodeProto(proto->add_children()); |
| } |
| |
| if (mask_layer_) |
| mask_layer_->ToLayerNodeProto(proto->mutable_mask_layer()); |
| if (replica_layer_) |
| replica_layer_->ToLayerNodeProto(proto->mutable_replica_layer()); |
| } |
| |
| void Layer::ClearLayerTreePropertiesForDeserializationAndAddToMap( |
| LayerIdMap* layer_map) { |
| (*layer_map)[layer_id_] = this; |
| |
| if (layer_tree_host_) |
| layer_tree_host_->UnregisterLayer(this); |
| |
| layer_tree_host_ = nullptr; |
| parent_ = nullptr; |
| |
| // Clear these properties for all the children and add them to the map. |
| for (auto& child : children_) { |
| child->ClearLayerTreePropertiesForDeserializationAndAddToMap(layer_map); |
| } |
| |
| children_.clear(); |
| |
| if (mask_layer_) { |
| mask_layer_->ClearLayerTreePropertiesForDeserializationAndAddToMap( |
| layer_map); |
| mask_layer_ = nullptr; |
| } |
| |
| if (replica_layer_) { |
| replica_layer_->ClearLayerTreePropertiesForDeserializationAndAddToMap( |
| layer_map); |
| replica_layer_ = nullptr; |
| } |
| } |
| |
| void Layer::FromLayerNodeProto(const proto::LayerNode& proto, |
| const LayerIdMap& layer_map, |
| LayerTreeHost* layer_tree_host) { |
| DCHECK(!layer_tree_host_); |
| DCHECK(children_.empty()); |
| DCHECK(!mask_layer_); |
| DCHECK(!replica_layer_); |
| DCHECK(layer_tree_host); |
| DCHECK(proto.has_id()); |
| |
| layer_id_ = proto.id(); |
| |
| layer_tree_host_ = layer_tree_host; |
| layer_tree_host_->RegisterLayer(this); |
| |
| for (int i = 0; i < proto.children_size(); ++i) { |
| const proto::LayerNode& child_proto = proto.children(i); |
| DCHECK(child_proto.has_type()); |
| scoped_refptr<Layer> child = |
| LayerProtoConverter::FindOrAllocateAndConstruct(child_proto, layer_map); |
| // The child must now refer to this layer as its parent, and must also have |
| // the same LayerTreeHost. This must be done before deserializing children. |
| DCHECK(!child->parent_); |
| child->parent_ = this; |
| child->FromLayerNodeProto(child_proto, layer_map, layer_tree_host_); |
| children_.push_back(child); |
| } |
| |
| if (proto.has_mask_layer()) { |
| mask_layer_ = LayerProtoConverter::FindOrAllocateAndConstruct( |
| proto.mask_layer(), layer_map); |
| mask_layer_->parent_ = this; |
| mask_layer_->FromLayerNodeProto(proto.mask_layer(), layer_map, |
| layer_tree_host_); |
| } |
| |
| if (proto.has_replica_layer()) { |
| replica_layer_ = LayerProtoConverter::FindOrAllocateAndConstruct( |
| proto.replica_layer(), layer_map); |
| replica_layer_->parent_ = this; |
| replica_layer_->FromLayerNodeProto(proto.replica_layer(), layer_map, |
| layer_tree_host_); |
| } |
| } |
| |
| void Layer::ToLayerPropertiesProto(proto::LayerUpdate* layer_update) { |
| // Always set properties metadata for serialized layers. |
| proto::LayerProperties* proto = layer_update->add_layers(); |
| proto->set_id(layer_id_); |
| LayerSpecificPropertiesToProto(proto); |
| } |
| |
| void Layer::FromLayerPropertiesProto(const proto::LayerProperties& proto) { |
| DCHECK(proto.has_id()); |
| DCHECK_EQ(layer_id_, proto.id()); |
| FromLayerSpecificPropertiesProto(proto); |
| } |
| |
| void Layer::LayerSpecificPropertiesToProto(proto::LayerProperties* proto) { |
| proto::BaseLayerProperties* base = proto->mutable_base(); |
| |
| bool use_paint_properties = layer_tree_host_ && |
| paint_properties_.source_frame_number == |
| layer_tree_host_->source_frame_number(); |
| |
| Point3FToProto(transform_origin_, base->mutable_transform_origin()); |
| base->set_background_color(background_color_); |
| base->set_safe_opaque_background_color(safe_opaque_background_color_); |
| SizeToProto(use_paint_properties ? paint_properties_.bounds : bounds_, |
| base->mutable_bounds()); |
| |
| // TODO(nyquist): Figure out what to do with debug info. See crbug.com/570372. |
| |
| base->set_transform_free_index(transform_tree_index_); |
| base->set_effect_tree_index(effect_tree_index_); |
| base->set_clip_tree_index(clip_tree_index_); |
| base->set_scroll_tree_index(scroll_tree_index_); |
| Vector2dFToProto(offset_to_transform_parent_, |
| base->mutable_offset_to_transform_parent()); |
| base->set_double_sided(double_sided_); |
| base->set_draws_content(draws_content_); |
| base->set_hide_layer_and_subtree(hide_layer_and_subtree_); |
| base->set_has_render_surface(has_render_surface_); |
| base->set_subtree_property_changed(subtree_property_changed_); |
| |
| // TODO(nyquist): Add support for serializing FilterOperations for |
| // |filters_| and |background_filters_|. See crbug.com/541321. |
| |
| base->set_masks_to_bounds(masks_to_bounds_); |
| base->set_main_thread_scrolling_reasons(main_thread_scrolling_reasons_); |
| RegionToProto(non_fast_scrollable_region_, |
| base->mutable_non_fast_scrollable_region()); |
| RegionToProto(touch_event_handler_region_, |
| base->mutable_touch_event_handler_region()); |
| base->set_contents_opaque(contents_opaque_); |
| base->set_opacity(opacity_); |
| base->set_blend_mode(SkXfermodeModeToProto(blend_mode_)); |
| base->set_is_root_for_isolated_group(is_root_for_isolated_group_); |
| PointFToProto(position_, base->mutable_position()); |
| base->set_is_container_for_fixed_position_layers( |
| is_container_for_fixed_position_layers_); |
| position_constraint_.ToProtobuf(base->mutable_position_constraint()); |
| base->set_should_flatten_transform(should_flatten_transform_); |
| base->set_should_flatten_transform_from_property_tree( |
| should_flatten_transform_from_property_tree_); |
| base->set_draw_blend_mode(SkXfermodeModeToProto(draw_blend_mode_)); |
| base->set_use_parent_backface_visibility(use_parent_backface_visibility_); |
| TransformToProto(transform_, base->mutable_transform()); |
| base->set_sorting_context_id(sorting_context_id_); |
| base->set_num_descendants_that_draw_content( |
| num_descendants_that_draw_content_); |
| |
| base->set_scroll_clip_layer_id(scroll_clip_layer_id_); |
| base->set_user_scrollable_horizontal(user_scrollable_horizontal_); |
| base->set_user_scrollable_vertical(user_scrollable_vertical_); |
| |
| int scroll_parent_id = scroll_parent_ ? scroll_parent_->id() : INVALID_ID; |
| base->set_scroll_parent_id(scroll_parent_id); |
| |
| if (scroll_children_) { |
| for (auto* child : *scroll_children_) |
| base->add_scroll_children_ids(child->id()); |
| } |
| |
| int clip_parent_id = clip_parent_ ? clip_parent_->id() : INVALID_ID; |
| base->set_clip_parent_id(clip_parent_id); |
| |
| if (clip_children_) { |
| for (auto* child : *clip_children_) |
| base->add_clip_children_ids(child->id()); |
| } |
| |
| ScrollOffsetToProto(scroll_offset_, base->mutable_scroll_offset()); |
| |
| // TODO(nyquist): Figure out what to do with CopyRequests. |
| // See crbug.com/570374. |
| |
| RectToProto(update_rect_, base->mutable_update_rect()); |
| |
| // TODO(nyquist): Figure out what to do with ElementAnimations. |
| // See crbug.com/570376. |
| |
| update_rect_ = gfx::Rect(); |
| } |
| |
| void Layer::FromLayerSpecificPropertiesProto( |
| const proto::LayerProperties& proto) { |
| DCHECK(proto.has_base()); |
| DCHECK(layer_tree_host_); |
| const proto::BaseLayerProperties& base = proto.base(); |
| |
| transform_origin_ = ProtoToPoint3F(base.transform_origin()); |
| background_color_ = base.background_color(); |
| safe_opaque_background_color_ = base.safe_opaque_background_color(); |
| bounds_ = ProtoToSize(base.bounds()); |
| |
| transform_tree_index_ = base.transform_free_index(); |
| effect_tree_index_ = base.effect_tree_index(); |
| clip_tree_index_ = base.clip_tree_index(); |
| scroll_tree_index_ = base.scroll_tree_index(); |
| offset_to_transform_parent_ = |
| ProtoToVector2dF(base.offset_to_transform_parent()); |
| double_sided_ = base.double_sided(); |
| draws_content_ = base.draws_content(); |
| hide_layer_and_subtree_ = base.hide_layer_and_subtree(); |
| has_render_surface_ = base.has_render_surface(); |
| subtree_property_changed_ = base.subtree_property_changed(); |
| masks_to_bounds_ = base.masks_to_bounds(); |
| main_thread_scrolling_reasons_ = base.main_thread_scrolling_reasons(); |
| non_fast_scrollable_region_ = |
| RegionFromProto(base.non_fast_scrollable_region()); |
| touch_event_handler_region_ = |
| RegionFromProto(base.touch_event_handler_region()); |
| contents_opaque_ = base.contents_opaque(); |
| opacity_ = base.opacity(); |
| blend_mode_ = SkXfermodeModeFromProto(base.blend_mode()); |
| is_root_for_isolated_group_ = base.is_root_for_isolated_group(); |
| position_ = ProtoToPointF(base.position()); |
| is_container_for_fixed_position_layers_ = |
| base.is_container_for_fixed_position_layers(); |
| position_constraint_.FromProtobuf(base.position_constraint()); |
| should_flatten_transform_ = base.should_flatten_transform(); |
| should_flatten_transform_from_property_tree_ = |
| base.should_flatten_transform_from_property_tree(); |
| draw_blend_mode_ = SkXfermodeModeFromProto(base.draw_blend_mode()); |
| use_parent_backface_visibility_ = base.use_parent_backface_visibility(); |
| transform_ = ProtoToTransform(base.transform()); |
| sorting_context_id_ = base.sorting_context_id(); |
| num_descendants_that_draw_content_ = base.num_descendants_that_draw_content(); |
| |
| scroll_clip_layer_id_ = base.scroll_clip_layer_id(); |
| user_scrollable_horizontal_ = base.user_scrollable_horizontal(); |
| user_scrollable_vertical_ = base.user_scrollable_vertical(); |
| |
| scroll_parent_ = base.scroll_parent_id() == INVALID_ID |
| ? nullptr |
| : layer_tree_host_->LayerById(base.scroll_parent_id()); |
| |
| // If there have been scroll children entries in previous deserializations, |
| // clear out the set. If there have been none, initialize the set of children. |
| // After this, the set is in the correct state to only add the new children. |
| // If the set of children has not changed, for now this code still rebuilds |
| // the set. |
| if (scroll_children_) |
| scroll_children_->clear(); |
| else if (base.scroll_children_ids_size() > 0) |
| scroll_children_.reset(new std::set<Layer*>); |
| for (int i = 0; i < base.scroll_children_ids_size(); ++i) { |
| int child_id = base.scroll_children_ids(i); |
| scoped_refptr<Layer> child = layer_tree_host_->LayerById(child_id); |
| scroll_children_->insert(child.get()); |
| } |
| |
| clip_parent_ = base.clip_parent_id() == INVALID_ID |
| ? nullptr |
| : layer_tree_host_->LayerById(base.clip_parent_id()); |
| |
| // If there have been clip children entries in previous deserializations, |
| // clear out the set. If there have been none, initialize the set of children. |
| // After this, the set is in the correct state to only add the new children. |
| // If the set of children has not changed, for now this code still rebuilds |
| // the set. |
| if (clip_children_) |
| clip_children_->clear(); |
| else if (base.clip_children_ids_size() > 0) |
| clip_children_.reset(new std::set<Layer*>); |
| for (int i = 0; i < base.clip_children_ids_size(); ++i) { |
| int child_id = base.clip_children_ids(i); |
| scoped_refptr<Layer> child = layer_tree_host_->LayerById(child_id); |
| clip_children_->insert(child.get()); |
| } |
| |
| scroll_offset_ = ProtoToScrollOffset(base.scroll_offset()); |
| |
| update_rect_.Union(ProtoToRect(base.update_rect())); |
| } |
| |
| std::unique_ptr<LayerImpl> Layer::CreateLayerImpl(LayerTreeImpl* tree_impl) { |
| return LayerImpl::Create(tree_impl, layer_id_); |
| } |
| |
| bool Layer::DrawsContent() const { |
| return draws_content_; |
| } |
| |
| bool Layer::HasDrawableContent() const { |
| return is_drawable_; |
| } |
| |
| void Layer::UpdateDrawsContent(bool has_drawable_content) { |
| bool draws_content = has_drawable_content; |
| DCHECK(is_drawable_ || !has_drawable_content); |
| if (draws_content == draws_content_) |
| return; |
| |
| if (parent()) |
| parent()->AddDrawableDescendants(draws_content ? 1 : -1); |
| |
| draws_content_ = draws_content; |
| SetNeedsCommit(); |
| } |
| |
| int Layer::NumDescendantsThatDrawContent() const { |
| return num_descendants_that_draw_content_; |
| } |
| |
| void Layer::SavePaintProperties() { |
| DCHECK(layer_tree_host_); |
| |
| // TODO(reveman): Save all layer properties that we depend on not |
| // changing until PushProperties() has been called. crbug.com/231016 |
| paint_properties_.bounds = bounds_; |
| paint_properties_.source_frame_number = |
| layer_tree_host_->source_frame_number(); |
| } |
| |
| bool Layer::Update() { |
| DCHECK(layer_tree_host_); |
| DCHECK_EQ(layer_tree_host_->source_frame_number(), |
| paint_properties_.source_frame_number) << |
| "SavePaintProperties must be called for any layer that is painted."; |
| return false; |
| } |
| |
| bool Layer::IsSuitableForGpuRasterization() const { |
| return true; |
| } |
| |
| std::unique_ptr<base::trace_event::ConvertableToTraceFormat> |
| Layer::TakeDebugInfo() { |
| if (client_) |
| return client_->TakeDebugInfo(this); |
| else |
| return nullptr; |
| } |
| |
| void Layer::SetHasRenderSurface(bool has_render_surface) { |
| has_render_surface_ = has_render_surface; |
| } |
| |
| void Layer::SetSubtreePropertyChanged() { |
| if (subtree_property_changed_) |
| return; |
| subtree_property_changed_ = true; |
| SetNeedsPushProperties(); |
| } |
| |
| gfx::ScrollOffset Layer::ScrollOffsetForAnimation() const { |
| return CurrentScrollOffset(); |
| } |
| |
| // On<Property>Animated is called due to an ongoing accelerated animation. |
| // Since this animation is also being run on the compositor thread, there |
| // is no need to request a commit to push this value over, so the value is |
| // set directly rather than by calling Set<Property>. |
| void Layer::OnFilterAnimated(const FilterOperations& filters) { |
| filters_ = filters; |
| } |
| |
| void Layer::OnOpacityAnimated(float opacity) { |
| if (opacity_ == opacity) |
| return; |
| opacity_ = opacity; |
| // Changing the opacity may make a previously hidden layer visible, so a new |
| // recording may be needed. |
| SetNeedsUpdate(); |
| if (layer_tree_host_) { |
| if (EffectNode* node = layer_tree_host_->property_trees()->effect_tree.Node( |
| effect_tree_index())) { |
| if (node->owner_id == id()) { |
| node->data.opacity = opacity; |
| layer_tree_host_->property_trees()->effect_tree.set_needs_update(true); |
| } |
| } |
| } |
| } |
| |
| void Layer::OnTransformAnimated(const gfx::Transform& transform) { |
| if (transform_ == transform) |
| return; |
| transform_ = transform; |
| // Changing the transform may change the visible part of this layer, so a new |
| // recording may be needed. |
| SetNeedsUpdate(); |
| if (layer_tree_host_) { |
| if (TransformNode* node = |
| layer_tree_host_->property_trees()->transform_tree.Node( |
| transform_tree_index())) { |
| if (node->owner_id == id()) { |
| node->data.local = transform; |
| node->data.needs_local_transform_update = true; |
| node->data.is_animated = true; |
| layer_tree_host_->property_trees()->transform_tree.set_needs_update( |
| true); |
| } |
| } |
| } |
| } |
| |
| void Layer::OnScrollOffsetAnimated(const gfx::ScrollOffset& scroll_offset) { |
| // Do nothing. Scroll deltas will be sent from the compositor thread back |
| // to the main thread in the same manner as during non-animated |
| // compositor-driven scrolling. |
| } |
| |
| void Layer::OnTransformIsPotentiallyAnimatingChanged(bool is_animating) { |
| if (!layer_tree_host_) |
| return; |
| TransformTree& transform_tree = |
| layer_tree_host_->property_trees()->transform_tree; |
| TransformNode* node = transform_tree.Node(transform_tree_index()); |
| if (!node) |
| return; |
| |
| if (node->owner_id == id()) { |
| node->data.is_animated = is_animating; |
| if (is_animating) { |
| float maximum_target_scale = 0.f; |
| node->data.local_maximum_animation_target_scale = |
| MaximumTargetScale(&maximum_target_scale) ? maximum_target_scale |
| : 0.f; |
| |
| float animation_start_scale = 0.f; |
| node->data.local_starting_animation_scale = |
| AnimationStartScale(&animation_start_scale) ? animation_start_scale |
| : 0.f; |
| |
| node->data.has_only_translation_animations = |
| HasOnlyTranslationTransforms(); |
| |
| } else { |
| node->data.local_maximum_animation_target_scale = 0.f; |
| node->data.local_starting_animation_scale = 0.f; |
| node->data.has_only_translation_animations = true; |
| } |
| transform_tree.set_needs_update(true); |
| } |
| } |
| |
| bool Layer::HasActiveAnimationForTesting() const { |
| return layer_tree_host_ ? layer_tree_host_->HasActiveAnimationForTesting(this) |
| : false; |
| } |
| |
| ScrollbarLayerInterface* Layer::ToScrollbarLayer() { |
| return nullptr; |
| } |
| |
| RenderingStatsInstrumentation* Layer::rendering_stats_instrumentation() const { |
| return layer_tree_host_->rendering_stats_instrumentation(); |
| } |
| |
| void Layer::RemoveFromScrollTree() { |
| if (scroll_children_.get()) { |
| std::set<Layer*> copy = *scroll_children_; |
| for (std::set<Layer*>::iterator it = copy.begin(); it != copy.end(); ++it) |
| (*it)->SetScrollParent(nullptr); |
| } |
| |
| DCHECK(!scroll_children_); |
| SetScrollParent(nullptr); |
| } |
| |
| void Layer::RemoveFromClipTree() { |
| if (clip_children_.get()) { |
| std::set<Layer*> copy = *clip_children_; |
| for (std::set<Layer*>::iterator it = copy.begin(); it != copy.end(); ++it) |
| (*it)->SetClipParent(nullptr); |
| } |
| |
| DCHECK(!clip_children_); |
| SetClipParent(nullptr); |
| } |
| |
| void Layer::AddDrawableDescendants(int num) { |
| DCHECK_GE(num_descendants_that_draw_content_, 0); |
| DCHECK_GE(num_descendants_that_draw_content_ + num, 0); |
| if (num == 0) |
| return; |
| num_descendants_that_draw_content_ += num; |
| SetNeedsCommit(); |
| if (parent()) |
| parent()->AddDrawableDescendants(num); |
| } |
| |
| void Layer::RunMicroBenchmark(MicroBenchmark* benchmark) { |
| benchmark->RunOnLayer(this); |
| } |
| |
| void Layer::SetElementId(uint64_t id) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (element_id_ == id) |
| return; |
| TRACE_EVENT1(TRACE_DISABLED_BY_DEFAULT("compositor-worker"), |
| "Layer::SetElementId", "id", id); |
| element_id_ = id; |
| SetNeedsCommit(); |
| } |
| |
| void Layer::SetMutableProperties(uint32_t properties) { |
| DCHECK(IsPropertyChangeAllowed()); |
| if (mutable_properties_ == properties) |
| return; |
| TRACE_EVENT1(TRACE_DISABLED_BY_DEFAULT("compositor-worker"), |
| "Layer::SetMutableProperties", "properties", properties); |
| mutable_properties_ = properties; |
| SetNeedsCommit(); |
| } |
| |
| void Layer::DidBeginTracing() { |
| // We'll be dumping layer trees as part of trace, so make sure |
| // PushPropertiesTo() propagates layer debug info to the impl |
| // side -- otherwise this won't happen for the the layers that |
| // remain unchanged since tracing started. |
| SetNeedsPushProperties(); |
| } |
| |
| int Layer::num_copy_requests_in_target_subtree() { |
| return layer_tree_host() |
| ->property_trees() |
| ->effect_tree.Node(effect_tree_index()) |
| ->data.num_copy_requests_in_subtree; |
| } |
| |
| gfx::Transform Layer::screen_space_transform() const { |
| DCHECK_NE(transform_tree_index_, -1); |
| return draw_property_utils::ScreenSpaceTransform( |
| this, layer_tree_host_->property_trees()->transform_tree); |
| } |
| |
| } // namespace cc |