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| 1 // Copyright 2011 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef CC_LAYER_IMPL_H_ | |
| 6 #define CC_LAYER_IMPL_H_ | |
| 7 | |
| 8 #include <string> | |
| 9 | |
| 10 #include "base/logging.h" | |
| 11 #include "base/memory/scoped_ptr.h" | |
| 12 #include "base/values.h" | |
| 13 #include "cc/animation/layer_animation_controller.h" | |
| 14 #include "cc/animation/layer_animation_value_observer.h" | |
| 15 #include "cc/base/cc_export.h" | |
| 16 #include "cc/base/region.h" | |
| 17 #include "cc/base/scoped_ptr_vector.h" | |
| 18 #include "cc/draw_properties.h" | |
| 19 #include "cc/input/input_handler.h" | |
| 20 #include "cc/quads/render_pass.h" | |
| 21 #include "cc/quads/shared_quad_state.h" | |
| 22 #include "cc/render_surface_impl.h" | |
| 23 #include "cc/resources/resource_provider.h" | |
| 24 #include "skia/ext/refptr.h" | |
| 25 #include "third_party/WebKit/Source/Platform/chromium/public/WebFilterOperations
.h" | |
| 26 #include "third_party/skia/include/core/SkColor.h" | |
| 27 #include "third_party/skia/include/core/SkImageFilter.h" | |
| 28 #include "third_party/skia/include/core/SkPicture.h" | |
| 29 #include "ui/gfx/rect.h" | |
| 30 #include "ui/gfx/rect_f.h" | |
| 31 #include "ui/gfx/transform.h" | |
| 32 | |
| 33 namespace base { | |
| 34 class DictionaryValue; | |
| 35 } | |
| 36 | |
| 37 namespace cc { | |
| 38 | |
| 39 class LayerTreeHostImpl; | |
| 40 class LayerTreeImpl; | |
| 41 class QuadSink; | |
| 42 class Renderer; | |
| 43 class ScrollbarAnimationController; | |
| 44 class ScrollbarLayerImpl; | |
| 45 class Layer; | |
| 46 | |
| 47 struct AppendQuadsData; | |
| 48 | |
| 49 class CC_EXPORT LayerImpl : LayerAnimationValueObserver { | |
| 50 public: | |
| 51 typedef ScopedPtrVector<LayerImpl> LayerList; | |
| 52 | |
| 53 static scoped_ptr<LayerImpl> Create(LayerTreeImpl* tree_impl, int id) { | |
| 54 return make_scoped_ptr(new LayerImpl(tree_impl, id)); | |
| 55 } | |
| 56 | |
| 57 virtual ~LayerImpl(); | |
| 58 | |
| 59 int id() const { return layer_id_; } | |
| 60 | |
| 61 // LayerAnimationValueObserver implementation. | |
| 62 virtual void OnOpacityAnimated(float opacity) OVERRIDE; | |
| 63 virtual void OnTransformAnimated(const gfx::Transform& transform) OVERRIDE; | |
| 64 virtual bool IsActive() const OVERRIDE; | |
| 65 | |
| 66 // Tree structure. | |
| 67 LayerImpl* parent() { return parent_; } | |
| 68 const LayerImpl* parent() const { return parent_; } | |
| 69 const LayerList& children() const { return children_; } | |
| 70 LayerList& children() { return children_; } | |
| 71 LayerImpl* child_at(size_t index) const { return children_[index]; } | |
| 72 void AddChild(scoped_ptr<LayerImpl> child); | |
| 73 scoped_ptr<LayerImpl> RemoveChild(LayerImpl* child); | |
| 74 void set_parent(LayerImpl* parent) { parent_ = parent; } | |
| 75 // Warning: This does not preserve tree structure invariants. | |
| 76 void ClearChildList(); | |
| 77 | |
| 78 void SetMaskLayer(scoped_ptr<LayerImpl> mask_layer); | |
| 79 LayerImpl* mask_layer() { return mask_layer_.get(); } | |
| 80 const LayerImpl* mask_layer() const { return mask_layer_.get(); } | |
| 81 scoped_ptr<LayerImpl> TakeMaskLayer(); | |
| 82 | |
| 83 void SetReplicaLayer(scoped_ptr<LayerImpl> replica_layer); | |
| 84 LayerImpl* replica_layer() { return replica_layer_.get(); } | |
| 85 const LayerImpl* replica_layer() const { return replica_layer_.get(); } | |
| 86 scoped_ptr<LayerImpl> TakeReplicaLayer(); | |
| 87 | |
| 88 bool has_mask() const { return mask_layer_; } | |
| 89 bool has_replica() const { return replica_layer_; } | |
| 90 bool replica_has_mask() const { | |
| 91 return replica_layer_ && (mask_layer_ || replica_layer_->mask_layer_); | |
| 92 } | |
| 93 | |
| 94 LayerTreeImpl* layer_tree_impl() const { return layer_tree_impl_; } | |
| 95 | |
| 96 scoped_ptr<SharedQuadState> CreateSharedQuadState() const; | |
| 97 // willDraw must be called before appendQuads. If willDraw is called, | |
| 98 // didDraw is guaranteed to be called before another willDraw or before | |
| 99 // the layer is destroyed. To enforce this, any class that overrides | |
| 100 // willDraw/didDraw must call the base class version. | |
| 101 virtual void WillDraw(ResourceProvider* resource_provider); | |
| 102 virtual void AppendQuads(QuadSink* quad_sink, | |
| 103 AppendQuadsData* append_quads_data) {} | |
| 104 virtual void DidDraw(ResourceProvider* resource_provider); | |
| 105 | |
| 106 virtual ResourceProvider::ResourceId ContentsResourceId() const; | |
| 107 | |
| 108 virtual bool HasDelegatedContent() const; | |
| 109 virtual bool HasContributingDelegatedRenderPasses() const; | |
| 110 virtual RenderPass::Id FirstContributingRenderPassId() const; | |
| 111 virtual RenderPass::Id NextContributingRenderPassId(RenderPass::Id id) const; | |
| 112 | |
| 113 virtual void UpdateTilePriorities() {} | |
| 114 | |
| 115 virtual ScrollbarLayerImpl* ToScrollbarLayer(); | |
| 116 | |
| 117 // Returns true if this layer has content to draw. | |
| 118 void SetDrawsContent(bool draws_content); | |
| 119 bool DrawsContent() const { return draws_content_; } | |
| 120 | |
| 121 bool force_render_surface() const { return force_render_surface_; } | |
| 122 void SetForceRenderSurface(bool force) { force_render_surface_ = force; } | |
| 123 | |
| 124 void SetAnchorPoint(gfx::PointF anchor_point); | |
| 125 gfx::PointF anchor_point() const { return anchor_point_; } | |
| 126 | |
| 127 void SetAnchorPointZ(float anchor_point_z); | |
| 128 float anchor_point_z() const { return anchor_point_z_; } | |
| 129 | |
| 130 void SetBackgroundColor(SkColor background_color); | |
| 131 SkColor background_color() const { return background_color_; } | |
| 132 | |
| 133 void SetFilters(const WebKit::WebFilterOperations& filters); | |
| 134 const WebKit::WebFilterOperations& filters() const { return filters_; } | |
| 135 | |
| 136 void SetBackgroundFilters(const WebKit::WebFilterOperations& filters); | |
| 137 const WebKit::WebFilterOperations& background_filters() const { | |
| 138 return background_filters_; | |
| 139 } | |
| 140 | |
| 141 void SetFilter(const skia::RefPtr<SkImageFilter>& filter); | |
| 142 skia::RefPtr<SkImageFilter> filter() const { return filter_; } | |
| 143 | |
| 144 void SetMasksToBounds(bool masks_to_bounds); | |
| 145 bool masks_to_bounds() const { return masks_to_bounds_; } | |
| 146 | |
| 147 void SetContentsOpaque(bool opaque); | |
| 148 bool contents_opaque() const { return contents_opaque_; } | |
| 149 | |
| 150 void SetOpacity(float opacity); | |
| 151 float opacity() const { return opacity_; } | |
| 152 bool OpacityIsAnimating() const; | |
| 153 bool OpacityIsAnimatingOnImplOnly() const; | |
| 154 | |
| 155 void SetPosition(gfx::PointF position); | |
| 156 gfx::PointF position() const { return position_; } | |
| 157 | |
| 158 void SetIsContainerForFixedPositionLayers(bool container) { | |
| 159 is_container_for_fixed_position_layers_ = container; | |
| 160 } | |
| 161 bool is_container_for_fixed_position_layers() const { | |
| 162 return is_container_for_fixed_position_layers_; | |
| 163 } | |
| 164 | |
| 165 void SetFixedToContainerLayer(bool fixed) { | |
| 166 fixed_to_container_layer_ = fixed; | |
| 167 } | |
| 168 bool fixed_to_container_layer() const { return fixed_to_container_layer_; } | |
| 169 | |
| 170 void SetPreserves3d(bool preserves_3d); | |
| 171 bool preserves_3d() const { return preserves_3d_; } | |
| 172 | |
| 173 void SetUseParentBackfaceVisibility(bool use) { | |
| 174 use_parent_backface_visibility_ = use; | |
| 175 } | |
| 176 bool use_parent_backface_visibility() const { | |
| 177 return use_parent_backface_visibility_; | |
| 178 } | |
| 179 | |
| 180 void SetSublayerTransform(const gfx::Transform& sublayer_transform); | |
| 181 const gfx::Transform& sublayer_transform() const { | |
| 182 return sublayer_transform_; | |
| 183 } | |
| 184 | |
| 185 // Debug layer name. | |
| 186 void SetDebugName(const std::string& debug_name) { debug_name_ = debug_name; } | |
| 187 std::string debug_name() const { return debug_name_; } | |
| 188 | |
| 189 bool ShowDebugBorders() const; | |
| 190 | |
| 191 // These invalidate the host's render surface layer list. The caller | |
| 192 // is responsible for calling setNeedsUpdateDrawProperties on the host | |
| 193 // so that its list can be recreated. | |
| 194 void CreateRenderSurface(); | |
| 195 void ClearRenderSurface() { draw_properties_.render_surface.reset(); } | |
| 196 | |
| 197 DrawProperties<LayerImpl, RenderSurfaceImpl>& draw_properties() { | |
| 198 return draw_properties_; | |
| 199 } | |
| 200 const DrawProperties<LayerImpl, RenderSurfaceImpl>& draw_properties() const { | |
| 201 return draw_properties_; | |
| 202 } | |
| 203 | |
| 204 // The following are shortcut accessors to get various information from | |
| 205 // draw_properties_ | |
| 206 const gfx::Transform& draw_transform() const { | |
| 207 return draw_properties_.target_space_transform; | |
| 208 } | |
| 209 const gfx::Transform& screen_space_transform() const { | |
| 210 return draw_properties_.screen_space_transform; | |
| 211 } | |
| 212 float draw_opacity() const { return draw_properties_.opacity; } | |
| 213 bool draw_opacity_is_animating() const { | |
| 214 return draw_properties_.opacity_is_animating; | |
| 215 } | |
| 216 bool draw_transform_is_animating() const { | |
| 217 return draw_properties_.target_space_transform_is_animating; | |
| 218 } | |
| 219 bool screen_space_transform_is_animating() const { | |
| 220 return draw_properties_.screen_space_transform_is_animating; | |
| 221 } | |
| 222 bool screen_space_opacity_is_animating() const { | |
| 223 return draw_properties_.screen_space_opacity_is_animating; | |
| 224 } | |
| 225 bool can_use_lcd_text() const { return draw_properties_.can_use_lcd_text; } | |
| 226 bool is_clipped() const { return draw_properties_.is_clipped; } | |
| 227 gfx::Rect clip_rect() const { return draw_properties_.clip_rect; } | |
| 228 gfx::Rect drawable_content_rect() const { | |
| 229 return draw_properties_.drawable_content_rect; | |
| 230 } | |
| 231 gfx::Rect visible_content_rect() const { | |
| 232 return draw_properties_.visible_content_rect; | |
| 233 } | |
| 234 LayerImpl* render_target() { | |
| 235 DCHECK(!draw_properties_.render_target || | |
| 236 draw_properties_.render_target->render_surface()); | |
| 237 return draw_properties_.render_target; | |
| 238 } | |
| 239 const LayerImpl* render_target() const { | |
| 240 DCHECK(!draw_properties_.render_target || | |
| 241 draw_properties_.render_target->render_surface()); | |
| 242 return draw_properties_.render_target; | |
| 243 } | |
| 244 RenderSurfaceImpl* render_surface() const { | |
| 245 return draw_properties_.render_surface.get(); | |
| 246 } | |
| 247 | |
| 248 // The client should be responsible for setting bounds, contentBounds and | |
| 249 // contentsScale to appropriate values. LayerImpl doesn't calculate any of | |
| 250 // them from the other values. | |
| 251 | |
| 252 void SetBounds(gfx::Size bounds); | |
| 253 gfx::Size bounds() const { return bounds_; } | |
| 254 | |
| 255 void SetContentBounds(gfx::Size content_bounds); | |
| 256 gfx::Size content_bounds() const { return draw_properties_.content_bounds; } | |
| 257 | |
| 258 float contents_scale_x() const { return draw_properties_.contents_scale_x; } | |
| 259 float contents_scale_y() const { return draw_properties_.contents_scale_y; } | |
| 260 void SetContentsScale(float contents_scale_x, float contents_scale_y); | |
| 261 | |
| 262 virtual void CalculateContentsScale(float ideal_contents_scale, | |
| 263 bool animating_transform_to_screen, | |
| 264 float* contents_scale_x, | |
| 265 float* contents_scale_y, | |
| 266 gfx::Size* contentBounds); | |
| 267 | |
| 268 void SetScrollOffset(gfx::Vector2d scroll_offset); | |
| 269 gfx::Vector2d scroll_offset() const { return scroll_offset_; } | |
| 270 | |
| 271 void SetMaxScrollOffset(gfx::Vector2d max_scroll_offset); | |
| 272 gfx::Vector2d max_scroll_offset() const { return max_scroll_offset_; } | |
| 273 | |
| 274 void SetScrollDelta(gfx::Vector2dF scroll_delta); | |
| 275 gfx::Vector2dF scroll_delta() const { return scroll_delta_; } | |
| 276 | |
| 277 gfx::Vector2dF TotalScrollOffset() const; | |
| 278 | |
| 279 void SetImplTransform(const gfx::Transform& transform); | |
| 280 const gfx::Transform& impl_transform() const { return impl_transform_; } | |
| 281 | |
| 282 void SetSentScrollDelta(gfx::Vector2d sent_scroll_delta); | |
| 283 gfx::Vector2d sent_scroll_delta() const { return sent_scroll_delta_; } | |
| 284 | |
| 285 // Returns the delta of the scroll that was outside of the bounds of the | |
| 286 // initial scroll | |
| 287 gfx::Vector2dF ScrollBy(gfx::Vector2dF scroll); | |
| 288 | |
| 289 void SetScrollable(bool scrollable) { scrollable_ = scrollable; } | |
| 290 bool scrollable() const { return scrollable_; } | |
| 291 | |
| 292 void SetShouldScrollOnMainThread(bool should_scroll_on_main_thread) { | |
| 293 should_scroll_on_main_thread_ = should_scroll_on_main_thread; | |
| 294 } | |
| 295 bool should_scroll_on_main_thread() const { | |
| 296 return should_scroll_on_main_thread_; | |
| 297 } | |
| 298 | |
| 299 void SetHaveWheelEventHandlers(bool have_wheel_event_handlers) { | |
| 300 have_wheel_event_handlers_ = have_wheel_event_handlers; | |
| 301 } | |
| 302 bool have_wheel_event_handlers() const { return have_wheel_event_handlers_; } | |
| 303 | |
| 304 void SetNonFastScrollableRegion(const Region& region) { | |
| 305 non_fast_scrollable_region_ = region; | |
| 306 } | |
| 307 const Region& non_fast_scrollable_region() const { | |
| 308 return non_fast_scrollable_region_; | |
| 309 } | |
| 310 | |
| 311 void SetTouchEventHandlerRegion(const Region& region) { | |
| 312 touch_event_handler_region_ = region; | |
| 313 } | |
| 314 const Region& touch_event_handler_region() const { | |
| 315 return touch_event_handler_region_; | |
| 316 } | |
| 317 | |
| 318 void SetDrawCheckerboardForMissingTiles(bool checkerboard) { | |
| 319 draw_checkerboard_for_missing_tiles_ = checkerboard; | |
| 320 } | |
| 321 bool DrawCheckerboardForMissingTiles() const; | |
| 322 | |
| 323 InputHandlerClient::ScrollStatus TryScroll( | |
| 324 gfx::PointF screen_space_point, | |
| 325 InputHandlerClient::ScrollInputType type) const; | |
| 326 | |
| 327 void SetDoubleSided(bool double_sided); | |
| 328 bool double_sided() const { return double_sided_; } | |
| 329 | |
| 330 void SetTransform(const gfx::Transform& transform); | |
| 331 const gfx::Transform& transform() const { return transform_; } | |
| 332 bool TransformIsAnimating() const; | |
| 333 bool TransformIsAnimatingOnImplOnly() const; | |
| 334 | |
| 335 void set_update_rect(const gfx::RectF& update_rect) { | |
| 336 update_rect_ = update_rect; | |
| 337 } | |
| 338 const gfx::RectF& update_rect() const { return update_rect_; } | |
| 339 | |
| 340 std::string LayerTreeAsText() const; | |
| 341 virtual base::DictionaryValue* LayerTreeAsJson() const; | |
| 342 | |
| 343 void SetStackingOrderChanged(bool stacking_order_changed); | |
| 344 | |
| 345 bool LayerPropertyChanged() const { | |
| 346 return layer_property_changed_ || LayerIsAlwaysDamaged(); | |
| 347 } | |
| 348 bool LayerSurfacePropertyChanged() const; | |
| 349 | |
| 350 void ResetAllChangeTrackingForSubtree(); | |
| 351 | |
| 352 virtual bool LayerIsAlwaysDamaged() const; | |
| 353 | |
| 354 LayerAnimationController* layer_animation_controller() { | |
| 355 return layer_animation_controller_.get(); | |
| 356 } | |
| 357 | |
| 358 virtual Region VisibleContentOpaqueRegion() const; | |
| 359 | |
| 360 virtual void DidBecomeActive(); | |
| 361 | |
| 362 // Indicates that the surface previously used to render this layer | |
| 363 // was lost and that a new one has been created. Won't be called | |
| 364 // until the new surface has been created successfully. | |
| 365 virtual void DidLoseOutputSurface(); | |
| 366 | |
| 367 ScrollbarAnimationController* scrollbar_animation_controller() const { | |
| 368 return scrollbar_animation_controller_.get(); | |
| 369 } | |
| 370 | |
| 371 void SetScrollbarOpacity(float opacity); | |
| 372 | |
| 373 void SetHorizontalScrollbarLayer(ScrollbarLayerImpl* scrollbar_layer); | |
| 374 ScrollbarLayerImpl* horizontal_scrollbar_layer() { | |
| 375 return horizontal_scrollbar_layer_; | |
| 376 } | |
| 377 | |
| 378 void SetVerticalScrollbarLayer(ScrollbarLayerImpl* scrollbar_layer); | |
| 379 ScrollbarLayerImpl* vertical_scrollbar_layer() { | |
| 380 return vertical_scrollbar_layer_; | |
| 381 } | |
| 382 | |
| 383 gfx::Rect LayerRectToContentRect(const gfx::RectF& layer_rect) const; | |
| 384 | |
| 385 virtual skia::RefPtr<SkPicture> GetPicture(); | |
| 386 | |
| 387 virtual bool CanClipSelf() const; | |
| 388 | |
| 389 virtual bool AreVisibleResourcesReady() const; | |
| 390 | |
| 391 virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl); | |
| 392 virtual void PushPropertiesTo(LayerImpl* layer); | |
| 393 | |
| 394 virtual scoped_ptr<base::Value> AsValue() const; | |
| 395 | |
| 396 protected: | |
| 397 LayerImpl(LayerTreeImpl* layer_impl, int id); | |
| 398 | |
| 399 // Get the color and size of the layer's debug border. | |
| 400 virtual void GetDebugBorderProperties(SkColor* color, float* width) const; | |
| 401 | |
| 402 void AppendDebugBorderQuad(QuadSink* quad_sink, | |
| 403 const SharedQuadState* shared_quad_state, | |
| 404 AppendQuadsData* append_quads_data) const; | |
| 405 | |
| 406 virtual void DumpLayerProperties(std::string* str, int indent) const; | |
| 407 static std::string IndentString(int indent); | |
| 408 | |
| 409 void AsValueInto(base::DictionaryValue* dict) const; | |
| 410 | |
| 411 void NoteLayerSurfacePropertyChanged(); | |
| 412 void NoteLayerPropertyChanged(); | |
| 413 void NoteLayerPropertyChangedForSubtree(); | |
| 414 | |
| 415 // Note carefully this does not affect the current layer. | |
| 416 void NoteLayerPropertyChangedForDescendants(); | |
| 417 | |
| 418 private: | |
| 419 void UpdateScrollbarPositions(); | |
| 420 | |
| 421 virtual const char* LayerTypeAsString() const; | |
| 422 | |
| 423 void DumpLayer(std::string* str, int indent) const; | |
| 424 | |
| 425 // Properties internal to LayerImpl | |
| 426 LayerImpl* parent_; | |
| 427 LayerList children_; | |
| 428 // mask_layer_ can be temporarily stolen during tree sync, we need this ID to | |
| 429 // confirm newly assigned layer is still the previous one | |
| 430 int mask_layer_id_; | |
| 431 scoped_ptr<LayerImpl> mask_layer_; | |
| 432 int replica_layer_id_; // ditto | |
| 433 scoped_ptr<LayerImpl> replica_layer_; | |
| 434 int layer_id_; | |
| 435 LayerTreeImpl* layer_tree_impl_; | |
| 436 | |
| 437 // Properties synchronized from the associated Layer. | |
| 438 gfx::PointF anchor_point_; | |
| 439 float anchor_point_z_; | |
| 440 gfx::Size bounds_; | |
| 441 gfx::Vector2d scroll_offset_; | |
| 442 bool scrollable_; | |
| 443 bool should_scroll_on_main_thread_; | |
| 444 bool have_wheel_event_handlers_; | |
| 445 Region non_fast_scrollable_region_; | |
| 446 Region touch_event_handler_region_; | |
| 447 SkColor background_color_; | |
| 448 bool stacking_order_changed_; | |
| 449 | |
| 450 // Whether the "back" of this layer should draw. | |
| 451 bool double_sided_; | |
| 452 | |
| 453 // Tracks if drawing-related properties have changed since last redraw. | |
| 454 bool layer_property_changed_; | |
| 455 | |
| 456 // Indicates that a property has changed on this layer that would not | |
| 457 // affect the pixels on its target surface, but would require redrawing | |
| 458 // the targetSurface onto its ancestor targetSurface. | |
| 459 // For layers that do not own a surface this flag acts as | |
| 460 // layer_property_changed_. | |
| 461 bool layer_surface_property_changed_; | |
| 462 | |
| 463 bool masks_to_bounds_; | |
| 464 bool contents_opaque_; | |
| 465 float opacity_; | |
| 466 gfx::PointF position_; | |
| 467 bool preserves_3d_; | |
| 468 bool use_parent_backface_visibility_; | |
| 469 bool draw_checkerboard_for_missing_tiles_; | |
| 470 gfx::Transform sublayer_transform_; | |
| 471 gfx::Transform transform_; | |
| 472 | |
| 473 bool draws_content_; | |
| 474 bool force_render_surface_; | |
| 475 | |
| 476 // Set for the layer that other layers are fixed to. | |
| 477 bool is_container_for_fixed_position_layers_; | |
| 478 // This is true if the layer should be fixed to the closest ancestor | |
| 479 // container. | |
| 480 bool fixed_to_container_layer_; | |
| 481 | |
| 482 gfx::Vector2dF scroll_delta_; | |
| 483 gfx::Vector2d sent_scroll_delta_; | |
| 484 gfx::Vector2d max_scroll_offset_; | |
| 485 gfx::Transform impl_transform_; | |
| 486 gfx::Vector2dF last_scroll_offset_; | |
| 487 | |
| 488 // The global depth value of the center of the layer. This value is used | |
| 489 // to sort layers from back to front. | |
| 490 float draw_depth_; | |
| 491 | |
| 492 // Debug layer name. | |
| 493 std::string debug_name_; | |
| 494 | |
| 495 WebKit::WebFilterOperations filters_; | |
| 496 WebKit::WebFilterOperations background_filters_; | |
| 497 skia::RefPtr<SkImageFilter> filter_; | |
| 498 | |
| 499 #ifndef NDEBUG | |
| 500 bool between_will_draw_and_did_draw_; | |
| 501 #endif | |
| 502 | |
| 503 // Rect indicating what was repainted/updated during update. | |
| 504 // Note that plugin layers bypass this and leave it empty. | |
| 505 // Uses layer's content space. | |
| 506 gfx::RectF update_rect_; | |
| 507 | |
| 508 // Manages animations for this layer. | |
| 509 scoped_refptr<LayerAnimationController> layer_animation_controller_; | |
| 510 | |
| 511 // Manages scrollbars for this layer | |
| 512 scoped_ptr<ScrollbarAnimationController> scrollbar_animation_controller_; | |
| 513 | |
| 514 // Weak pointers to this layer's scrollbars, if it has them. Updated during | |
| 515 // tree synchronization. | |
| 516 ScrollbarLayerImpl* horizontal_scrollbar_layer_; | |
| 517 ScrollbarLayerImpl* vertical_scrollbar_layer_; | |
| 518 | |
| 519 // Group of properties that need to be computed based on the layer tree | |
| 520 // hierarchy before layers can be drawn. | |
| 521 DrawProperties<LayerImpl, RenderSurfaceImpl> draw_properties_; | |
| 522 | |
| 523 DISALLOW_COPY_AND_ASSIGN(LayerImpl); | |
| 524 }; | |
| 525 | |
| 526 } | |
| 527 | |
| 528 #endif // CC_LAYER_IMPL_H_ | |
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Chromium Code Reviews
Issue 12603013:
Part 10 of cc/ directory shuffles: layers (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src