Part 10 of cc/ directory shuffles: layers

cc/layer.h

Index: cc/layer.h
diff --git a/cc/layer.h b/cc/layer.h
deleted file mode 100644
index 018d40147851b358d4dcb7d638b0f64eb7c26d14..0000000000000000000000000000000000000000
--- a/cc/layer.h
+++ /dev/null
@@ -1,488 +0,0 @@
-// 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.
-
-#ifndef CC_LAYER_H_
-#define CC_LAYER_H_
-
-#include <string>
-#include <vector>
-
-#include "base/memory/ref_counted.h"
-#include "base/observer_list.h"
-#include "cc/animation/layer_animation_controller.h"
-#include "cc/animation/layer_animation_event_observer.h"
-#include "cc/animation/layer_animation_value_observer.h"
-#include "cc/base/cc_export.h"
-#include "cc/base/region.h"
-#include "cc/draw_properties.h"
-#include "cc/render_surface.h"
-#include "cc/trees/occlusion_tracker.h"
-#include "skia/ext/refptr.h"
-#include "third_party/WebKit/Source/Platform/chromium/public/WebFilterOperations.h"
-#include "third_party/skia/include/core/SkColor.h"
-#include "third_party/skia/include/core/SkImageFilter.h"
-#include "ui/gfx/rect.h"
-#include "ui/gfx/rect_f.h"
-#include "ui/gfx/transform.h"
-
-namespace WebKit {
-class WebAnimationDelegate;
-class WebLayerScrollClient;
-}
-
-namespace cc {
-
-class Animation;
-struct AnimationEvent;
-class LayerAnimationDelegate;
-class LayerImpl;
-class LayerTreeHost;
-class LayerTreeImpl;
-class PriorityCalculator;
-class ResourceUpdateQueue;
-class ScrollbarLayer;
-struct AnimationEvent;
-struct RenderingStats;
-
-// Base class for composited layers. Special layer types are derived from
-// this class.
-class CC_EXPORT Layer : public base::RefCounted<Layer>,
-                        public LayerAnimationValueObserver {
- public:
-  typedef std::vector<scoped_refptr<Layer> > LayerList;
-  enum LayerIdLabels {
-    PINCH_ZOOM_ROOT_SCROLL_LAYER_ID = -2,
-    INVALID_ID = -1,
-  };
-
-  static scoped_refptr<Layer> Create();
-
-  int id() const { return layer_id_; }
-
-  Layer* RootLayer();
-  Layer* parent() { return parent_; }
-  const Layer* parent() const { return parent_; }
-  void AddChild(scoped_refptr<Layer> child);
-  void InsertChild(scoped_refptr<Layer> child, size_t index);
-  void ReplaceChild(Layer* reference, scoped_refptr<Layer> new_layer);
-  void RemoveFromParent();
-  void RemoveAllChildren();
-  void SetChildren(const LayerList& children);
-
-  const LayerList& children() const { return children_; }
-  Layer* child_at(size_t index) { return children_[index].get(); }
-
-  void SetAnchorPoint(gfx::PointF anchor_point);
-  gfx::PointF anchor_point() const { return anchor_point_; }
-
-  void SetAnchorPointZ(float anchor_point_z);
-  float anchor_point_z() const { return anchor_point_z_; }
-
-  virtual void SetBackgroundColor(SkColor background_color);
-  SkColor background_color() const { return background_color_; }
-
-  // A layer's bounds are in logical, non-page-scaled pixels (however, the
-  // root layer's bounds are in physical pixels).
-  void SetBounds(gfx::Size bounds);
-  gfx::Size bounds() const { return bounds_; }
-
-  void SetMasksToBounds(bool masks_to_bounds);
-  bool masks_to_bounds() const { return masks_to_bounds_; }
-
-  void SetMaskLayer(Layer* mask_layer);
-  Layer* mask_layer() { return mask_layer_.get(); }
-  const Layer* mask_layer() const { return mask_layer_.get(); }
-
-  virtual void SetNeedsDisplayRect(const gfx::RectF& dirty_rect);
-  void SetNeedsDisplay() { SetNeedsDisplayRect(gfx::RectF(bounds())); }
-
-  void SetOpacity(float opacity);
-  float opacity() const { return opacity_; }
-  bool OpacityIsAnimating() const;
-  virtual bool OpacityCanAnimateOnImplThread() const;
-
-  void SetFilters(const WebKit::WebFilterOperations& filters);
-  const WebKit::WebFilterOperations& filters() const { return filters_; }
-
-  void SetFilter(const skia::RefPtr<SkImageFilter>& filter);
-  skia::RefPtr<SkImageFilter> filter() const { return filter_; }
-
-  // Background filters are filters applied to what is behind this layer, when
-  // they are viewed through non-opaque regions in this layer. They are used
-  // through the WebLayer interface, and are not exposed to HTML.
-  void SetBackgroundFilters(const WebKit::WebFilterOperations& filters);
-  const WebKit::WebFilterOperations& background_filters() const {
-    return background_filters_;
-  }
-
-  virtual void SetContentsOpaque(bool opaque);
-  bool contents_opaque() const { return contents_opaque_; }
-
-  void SetPosition(gfx::PointF position);
-  gfx::PointF position() const { return position_; }
-
-  void SetIsContainerForFixedPositionLayers(bool container);
-  bool is_container_for_fixed_position_layers() const {
-    return is_container_for_fixed_position_layers_;
-  }
-
-  void SetFixedToContainerLayer(bool fixed_to_container_layer);
-  bool fixed_to_container_layer() const { return fixed_to_container_layer_; }
-
-  void SetSublayerTransform(const gfx::Transform& sublayer_transform);
-  const gfx::Transform& sublayer_transform() const {
-    return sublayer_transform_;
-  }
-
-  void SetTransform(const gfx::Transform& transform);
-  const gfx::Transform& transform() const { return transform_; }
-  bool TransformIsAnimating() const;
-
-  DrawProperties<Layer, RenderSurface>& draw_properties() {
-    return draw_properties_;
-  }
-  const DrawProperties<Layer, RenderSurface>& draw_properties() const {
-    return draw_properties_;
-  }
-
-  // The following are shortcut accessors to get various information from
-  // draw_properties_
-  const gfx::Transform& draw_transform() const {
-    return draw_properties_.target_space_transform;
-  }
-  const gfx::Transform& screen_space_transform() const {
-    return draw_properties_.screen_space_transform;
-  }
-  float draw_opacity() const { return draw_properties_.opacity; }
-  bool draw_opacity_is_animating() const {
-    return draw_properties_.opacity_is_animating;
-  }
-  bool draw_transform_is_animating() const {
-    return draw_properties_.target_space_transform_is_animating;
-  }
-  bool screen_space_transform_is_animating() const {
-    return draw_properties_.screen_space_transform_is_animating;
-  }
-  bool screen_space_opacity_is_animating() const {
-    return draw_properties_.screen_space_opacity_is_animating;
-  }
-  bool can_use_lcd_text() const { return draw_properties_.can_use_lcd_text; }
-  bool is_clipped() const { return draw_properties_.is_clipped; }
-  gfx::Rect clip_rect() const { return draw_properties_.clip_rect; }
-  gfx::Rect drawable_content_rect() const {
-    return draw_properties_.drawable_content_rect;
-  }
-  gfx::Rect visible_content_rect() const {
-    return draw_properties_.visible_content_rect;
-  }
-  Layer* render_target() {
-    DCHECK(!draw_properties_.render_target ||
-           draw_properties_.render_target->render_surface());
-    return draw_properties_.render_target;
-  }
-  const Layer* render_target() const {
-    DCHECK(!draw_properties_.render_target ||
-           draw_properties_.render_target->render_surface());
-    return draw_properties_.render_target;
-  }
-  RenderSurface* render_surface() const {
-    return draw_properties_.render_surface.get();
-  }
-
-  void SetScrollOffset(gfx::Vector2d scroll_offset);
-  gfx::Vector2d scroll_offset() const { return scroll_offset_; }
-
-  void SetMaxScrollOffset(gfx::Vector2d max_scroll_offset);
-  gfx::Vector2d max_scroll_offset() const { return max_scroll_offset_; }
-
-  void SetScrollable(bool scrollable);
-  bool scrollable() const { return scrollable_; }
-
-  void SetShouldScrollOnMainThread(bool should_scroll_on_main_thread);
-  bool should_scroll_on_main_thread() const {
-    return should_scroll_on_main_thread_;
-  }
-
-  void SetHaveWheelEventHandlers(bool have_wheel_event_handlers);
-  bool have_wheel_event_handlers() const { return have_wheel_event_handlers_; }
-
-  void SetNonFastScrollableRegion(const Region& non_fast_scrollable_region);
-  const Region& non_fast_scrollable_region() const {
-    return non_fast_scrollable_region_;
-  }
-
-  void SetTouchEventHandlerRegion(const Region& touch_event_handler_region);
-  const Region& touch_event_handler_region() const {
-    return touch_event_handler_region_;
-  }
-
-  void set_layer_scroll_client(WebKit::WebLayerScrollClient* client) {
-    layer_scroll_client_ = client;
-  }
-
-  void SetDrawCheckerboardForMissingTiles(bool checkerboard);
-  bool DrawCheckerboardForMissingTiles() const {
-    return draw_checkerboard_for_missing_tiles_;
-  }
-
-  void SetForceRenderSurface(bool force_render_surface);
-  bool force_render_surface() const { return force_render_surface_; }
-
-  gfx::Vector2d scroll_delta() const { return gfx::Vector2d(); }
-
-  void SetImplTransform(const gfx::Transform& transform);
-  const gfx::Transform& impl_transform() const { return impl_transform_; }
-
-  void SetDoubleSided(bool double_sided);
-  bool double_sided() const { return double_sided_; }
-
-  void SetPreserves3d(bool preserves_3d) { preserves_3d_ = preserves_3d; }
-  bool preserves_3d() const { return preserves_3d_; }
-
-  void set_use_parent_backface_visibility(bool use) {
-    use_parent_backface_visibility_ = use;
-  }
-  bool use_parent_backface_visibility() const {
-    return use_parent_backface_visibility_;
-  }
-
-  virtual void SetLayerTreeHost(LayerTreeHost* host);
-
-  bool HasDelegatedContent() const { return false; }
-  bool HasContributingDelegatedRenderPasses() const { return false; }
-
-  void SetIsDrawable(bool is_drawable);
-
-  void SetReplicaLayer(Layer* layer);
-  Layer* replica_layer() { return replica_layer_.get(); }
-  const Layer* replica_layer() const { return replica_layer_.get(); }
-
-  bool has_mask() const { return !!mask_layer_; }
-  bool has_replica() const { return !!replica_layer_; }
-  bool replica_has_mask() const {
-    return replica_layer_ && (mask_layer_ || replica_layer_->mask_layer_);
-  }
-
-  // These methods typically need to be overwritten by derived classes.
-  virtual bool DrawsContent() const;
-  virtual void Update(ResourceUpdateQueue* queue,
-                      const OcclusionTracker* occlusion,
-                      RenderingStats* stats) {}
-  virtual bool NeedMoreUpdates();
-  virtual void SetIsMask(bool is_mask) {}
-
-  void SetDebugName(const std::string& debug_name);
-
-  virtual void PushPropertiesTo(LayerImpl* layer);
-
-  void ClearRenderSurface() { draw_properties_.render_surface.reset(); }
-  void CreateRenderSurface();
-
-  // The contentsScale converts from logical, non-page-scaled pixels to target
-  // pixels. The contentsScale is 1 for the root layer as it is already in
-  // physical pixels. By default contentsScale is forced to be 1 except for
-  // subclasses of ContentsScalingLayer.
-  float contents_scale_x() const { return draw_properties_.contents_scale_x; }
-  float contents_scale_y() const { return draw_properties_.contents_scale_y; }
-  gfx::Size content_bounds() const { return draw_properties_.content_bounds; }
-
-  virtual void CalculateContentsScale(float ideal_contents_scale,
-                                      bool animating_transform_to_screen,
-                                      float* contents_scale_x,
-                                      float* contents_scale_y,
-                                      gfx::Size* content_bounds);
-
-  // The scale at which contents should be rastered, to match the scale at
-  // which they will drawn to the screen. This scale is a component of the
-  // contentsScale() but does not include page/device scale factors.
-  void SetRasterScale(float scale);
-  float raster_scale() const { return raster_scale_; }
-
-  // When true, the RasterScale() will be set by the compositor. If false, it
-  // will use whatever value is given to it by the embedder.
-  bool automatically_compute_raster_scale() {
-    return automatically_compute_raster_scale_;
-  }
-  void SetAutomaticallyComputeRasterScale(bool automatic);
-
-  void ForceAutomaticRasterScaleToBeRecomputed();
-
-  // When true, the layer's contents are not scaled by the current page scale
-  // factor. SetBoundsContainPageScale() recursively sets the value on all
-  // child layers.
-  void SetBoundsContainPageScale(bool bounds_contain_page_scale);
-  bool bounds_contain_page_scale() const { return bounds_contain_page_scale_; }
-
-  LayerTreeHost* layer_tree_host() const { return layer_tree_host_; }
-
-  // Set the priority of all desired textures in this layer.
-  virtual void SetTexturePriorities(const PriorityCalculator& priority_calc) {}
-
-  bool AddAnimation(scoped_ptr<Animation> animation);
-  void PauseAnimation(int animation_id, double time_offset);
-  void RemoveAnimation(int animation_id);
-
-  void SuspendAnimations(double monotonic_time);
-  void ResumeAnimations(double monotonic_time);
-
-  LayerAnimationController* layer_animation_controller() {
-    return layer_animation_controller_.get();
-  }
-  void SetLayerAnimationController(
-      scoped_refptr<LayerAnimationController> controller);
-  scoped_refptr<LayerAnimationController> ReleaseLayerAnimationController();
-
-  void set_layer_animation_delegate(WebKit::WebAnimationDelegate* delegate) {
-    layer_animation_delegate_ = delegate;
-  }
-
-  bool HasActiveAnimation() const;
-
-  virtual void NotifyAnimationStarted(const AnimationEvent& event,
-                                      double wall_clock_time);
-  virtual void NotifyAnimationFinished(double wall_clock_time);
-  virtual void NotifyAnimationPropertyUpdate(const AnimationEvent& event);
-
-  void AddLayerAnimationEventObserver(
-      LayerAnimationEventObserver* animation_observer);
-  void RemoveLayerAnimationEventObserver(
-      LayerAnimationEventObserver* animation_observer);
-
-  virtual Region VisibleContentOpaqueRegion() const;
-
-  virtual ScrollbarLayer* ToScrollbarLayer();
-
-  gfx::Rect LayerRectToContentRect(const gfx::RectF& layer_rect) const;
-
-  // In impl-side painting, this returns true if this layer type is not
-  // compatible with the main thread running freely, such as a double-buffered
-  // canvas that doesn't want to be triple-buffered across all three trees.
-  virtual bool BlocksPendingCommit() const;
-  // Returns true if anything in this tree blocksPendingCommit.
-  bool BlocksPendingCommitRecursive() const;
-
-  virtual bool CanClipSelf() const;
-
-  // Constructs a LayerImpl of the correct runtime type for this Layer type.
-  virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl);
-
-  bool NeedsDisplayForTesting() const { return needs_display_; }
-  void ResetNeedsDisplayForTesting() { needs_display_ = false; }
-
- protected:
-  friend class LayerImpl;
-  friend class TreeSynchronizer;
-  virtual ~Layer();
-
-  Layer();
-
-  void SetNeedsCommit();
-  void SetNeedsFullTreeSync();
-
-  // This flag is set when layer need repainting/updating.
-  bool needs_display_;
-
-  // Tracks whether this layer may have changed stacking order with its
-  // siblings.
-  bool stacking_order_changed_;
-
-  // The update rect is the region of the compositor resource that was
-  // actually updated by the compositor. For layers that may do updating
-  // outside the compositor's control (i.e. plugin layers), this information
-  // is not available and the update rect will remain empty.
-  // Note this rect is in layer space (not content space).
-  gfx::RectF update_rect_;
-
-  scoped_refptr<Layer> mask_layer_;
-
-  int layer_id_;
-
-  // When true, the layer is about to perform an update. Any commit requests
-  // will be handled implcitly after the update completes.
-  bool ignore_set_needs_commit_;
-
- private:
-  friend class base::RefCounted<Layer>;
-
-  void SetParent(Layer* layer);
-  bool HasAncestor(Layer* ancestor) const;
-  bool DescendantIsFixedToContainerLayer() const;
-
-  // Returns the index of the child or -1 if not found.
-  int IndexOfChild(const Layer* reference);
-
-  // This should only be called from RemoveFromParent().
-  void RemoveChildOrDependent(Layer* child);
-
-  // LayerAnimationValueObserver implementation.
-  virtual void OnOpacityAnimated(float opacity) OVERRIDE;
-  virtual void OnTransformAnimated(const gfx::Transform& transform) OVERRIDE;
-  virtual bool IsActive() const OVERRIDE;
-
-  LayerList children_;
-  Layer* parent_;
-
-  // Layer instances have a weak pointer to their LayerTreeHost.
-  // This pointer value is nil when a Layer is not in a tree and is
-  // updated via SetLayerTreeHost() if a layer moves between trees.
-  LayerTreeHost* layer_tree_host_;
-
-  ObserverList<LayerAnimationEventObserver> layer_animation_observers_;
-
-  scoped_refptr<LayerAnimationController> layer_animation_controller_;
-
-  // Layer properties.
-  gfx::Size bounds_;
-
-  gfx::Vector2d scroll_offset_;
-  gfx::Vector2d max_scroll_offset_;
-  bool scrollable_;
-  bool should_scroll_on_main_thread_;
-  bool have_wheel_event_handlers_;
-  Region non_fast_scrollable_region_;
-  Region touch_event_handler_region_;
-  gfx::PointF position_;
-  gfx::PointF anchor_point_;
-  SkColor background_color_;
-  std::string debug_name_;
-  float opacity_;
-  skia::RefPtr<SkImageFilter> filter_;
-  WebKit::WebFilterOperations filters_;
-  WebKit::WebFilterOperations background_filters_;
-  float anchor_point_z_;
-  bool is_container_for_fixed_position_layers_;
-  bool fixed_to_container_layer_;
-  bool is_drawable_;
-  bool masks_to_bounds_;
-  bool contents_opaque_;
-  bool double_sided_;
-  bool preserves_3d_;
-  bool use_parent_backface_visibility_;
-  bool draw_checkerboard_for_missing_tiles_;
-  bool force_render_surface_;
-
-  gfx::Transform transform_;
-  gfx::Transform sublayer_transform_;
-
-  // Replica layer used for reflections.
-  scoped_refptr<Layer> replica_layer_;
-
-  // Transient properties.
-  float raster_scale_;
-  bool automatically_compute_raster_scale_;
-  bool bounds_contain_page_scale_;
-
-  gfx::Transform impl_transform_;
-
-  WebKit::WebAnimationDelegate* layer_animation_delegate_;
-  WebKit::WebLayerScrollClient* layer_scroll_client_;
-
-  DrawProperties<Layer, RenderSurface> draw_properties_;
-
-  DISALLOW_COPY_AND_ASSIGN(Layer);
-};
-
-}  // namespace cc
-
-#endif  // CC_LAYER_H_