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Side by Side Diff: ui/compositor/layer.h

Issue 2383263002: Generalize layer mirroring for phantom windows (Closed)
Patch Set: Rebase Created 4 years, 2 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef UI_COMPOSITOR_LAYER_H_ 5 #ifndef UI_COMPOSITOR_LAYER_H_
6 #define UI_COMPOSITOR_LAYER_H_ 6 #define UI_COMPOSITOR_LAYER_H_
7 7
8 #include <stddef.h> 8 #include <stddef.h>
9 9
10 #include <memory> 10 #include <memory>
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21 #include "cc/layers/layer_client.h" 21 #include "cc/layers/layer_client.h"
22 #include "cc/layers/surface_layer.h" 22 #include "cc/layers/surface_layer.h"
23 #include "cc/layers/texture_layer_client.h" 23 #include "cc/layers/texture_layer_client.h"
24 #include "cc/resources/texture_mailbox.h" 24 #include "cc/resources/texture_mailbox.h"
25 #include "cc/surfaces/surface_id.h" 25 #include "cc/surfaces/surface_id.h"
26 #include "third_party/skia/include/core/SkColor.h" 26 #include "third_party/skia/include/core/SkColor.h"
27 #include "third_party/skia/include/core/SkRegion.h" 27 #include "third_party/skia/include/core/SkRegion.h"
28 #include "ui/compositor/compositor.h" 28 #include "ui/compositor/compositor.h"
29 #include "ui/compositor/layer_animation_delegate.h" 29 #include "ui/compositor/layer_animation_delegate.h"
30 #include "ui/compositor/layer_delegate.h" 30 #include "ui/compositor/layer_delegate.h"
31 #include "ui/compositor/layer_observer.h"
31 #include "ui/compositor/layer_type.h" 32 #include "ui/compositor/layer_type.h"
32 #include "ui/gfx/geometry/rect.h" 33 #include "ui/gfx/geometry/rect.h"
33 #include "ui/gfx/image/image_skia.h" 34 #include "ui/gfx/image/image_skia.h"
34 #include "ui/gfx/transform.h" 35 #include "ui/gfx/transform.h"
35 36
36 class SkCanvas; 37 class SkCanvas;
37 38
38 namespace cc { 39 namespace cc {
39 class ContentLayer; 40 class ContentLayer;
40 class CopyOutputRequest; 41 class CopyOutputRequest;
41 class Layer; 42 class Layer;
42 class NinePatchLayer; 43 class NinePatchLayer;
43 class ResourceUpdateQueue; 44 class ResourceUpdateQueue;
44 class SolidColorLayer; 45 class SolidColorLayer;
45 class SurfaceLayer; 46 class SurfaceLayer;
46 class TextureLayer; 47 class TextureLayer;
47 struct ReturnedResource; 48 struct ReturnedResource;
48 typedef std::vector<ReturnedResource> ReturnedResourceArray; 49 typedef std::vector<ReturnedResource> ReturnedResourceArray;
49 } 50 }
50 51
51 namespace ui { 52 namespace ui {
52 53
53 class Compositor; 54 class Compositor;
54 class LayerAnimator; 55 class LayerAnimator;
55 class LayerObserver;
56 class LayerOwner; 56 class LayerOwner;
57 class LayerThreadedAnimationDelegate; 57 class LayerThreadedAnimationDelegate;
58 58
59 // Layer manages a texture, transform and a set of child Layers. Any View that 59 // Layer manages a texture, transform and a set of child Layers. Any View that
60 // has enabled layers ends up creating a Layer to manage the texture. 60 // has enabled layers ends up creating a Layer to manage the texture.
61 // A Layer can also be created without a texture, in which case it renders 61 // A Layer can also be created without a texture, in which case it renders
62 // nothing and is simply used as a node in a hierarchy of layers. 62 // nothing and is simply used as a node in a hierarchy of layers.
63 // Coordinate system used in layers is DIP (Density Independent Pixel) 63 // Coordinate system used in layers is DIP (Density Independent Pixel)
64 // coordinates unless explicitly mentioned as pixel coordinates. 64 // coordinates unless explicitly mentioned as pixel coordinates.
65 // 65 //
66 // NOTE: Unlike Views, each Layer does *not* own its child Layers. If you 66 // NOTE: Unlike Views, each Layer does *not* own its child Layers. If you
67 // delete a Layer and it has children, the parent of each child Layer is set to 67 // delete a Layer and it has children, the parent of each child Layer is set to
68 // NULL, but the children are not deleted. 68 // NULL, but the children are not deleted.
69 class COMPOSITOR_EXPORT Layer 69 class COMPOSITOR_EXPORT Layer
70 : public LayerAnimationDelegate, 70 : public LayerAnimationDelegate,
71 public LayerObserver,
71 NON_EXPORTED_BASE(public cc::ContentLayerClient), 72 NON_EXPORTED_BASE(public cc::ContentLayerClient),
72 NON_EXPORTED_BASE(public cc::TextureLayerClient), 73 NON_EXPORTED_BASE(public cc::TextureLayerClient),
73 NON_EXPORTED_BASE(public cc::LayerClient) { 74 NON_EXPORTED_BASE(public cc::LayerClient) {
74 public: 75 public:
75 Layer(); 76 Layer();
76 explicit Layer(LayerType type); 77 explicit Layer(LayerType type);
77 ~Layer() override; 78 ~Layer() override;
78 79
80 std::unique_ptr<Layer> Clone() const;
81
79 // Retrieves the Layer's compositor. The Layer will walk up its parent chain 82 // Retrieves the Layer's compositor. The Layer will walk up its parent chain
80 // to locate it. Returns NULL if the Layer is not attached to a compositor. 83 // to locate it. Returns NULL if the Layer is not attached to a compositor.
81 Compositor* GetCompositor() { 84 Compositor* GetCompositor() {
82 return const_cast<Compositor*>( 85 return const_cast<Compositor*>(
83 const_cast<const Layer*>(this)->GetCompositor()); 86 const_cast<const Layer*>(this)->GetCompositor());
84 } 87 }
85 const Compositor* GetCompositor() const; 88 const Compositor* GetCompositor() const;
86 89
87 // Called by the compositor when the Layer is set as its root Layer. This can 90 // Called by the compositor when the Layer is set as its root Layer. This can
88 // only ever be called on the root layer. 91 // only ever be called on the root layer.
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287 bool TextureFlipped() const; 290 bool TextureFlipped() const;
288 291
289 // Begins showing content from a surface with a particular id. 292 // Begins showing content from a surface with a particular id.
290 void SetShowSurface(const cc::SurfaceId& surface_id, 293 void SetShowSurface(const cc::SurfaceId& surface_id,
291 const cc::SurfaceLayer::SatisfyCallback& satisfy_callback, 294 const cc::SurfaceLayer::SatisfyCallback& satisfy_callback,
292 const cc::SurfaceLayer::RequireCallback& require_callback, 295 const cc::SurfaceLayer::RequireCallback& require_callback,
293 gfx::Size surface_size, 296 gfx::Size surface_size,
294 float scale, 297 float scale,
295 gfx::Size frame_size_in_dip); 298 gfx::Size frame_size_in_dip);
296 299
300 // Returns a new layer that mirrors this layer and is optionally synchronized
301 // with the bounds thereof. Note that children are not mirrored, and that the
302 // content is only mirrored if backed by a surface.
303 std::unique_ptr<Layer> Mirror();
304
305 void set_sync_bounds(bool sync_bounds) { sync_bounds_ = sync_bounds; }
306
297 bool has_external_content() { 307 bool has_external_content() {
298 return texture_layer_.get() || surface_layer_.get(); 308 return texture_layer_.get() || surface_layer_.get();
299 } 309 }
300 310
301 // Show a solid color instead of delegated or surface contents. 311 // Show a solid color instead of delegated or surface contents.
302 void SetShowSolidColorContent(); 312 void SetShowSolidColorContent();
303 313
304 // Sets the layer's fill color. May only be called for LAYER_SOLID_COLOR. 314 // Sets the layer's fill color. May only be called for LAYER_SOLID_COLOR.
305 void SetColor(SkColor color); 315 void SetColor(SkColor color);
306 SkColor GetTargetColor(); 316 SkColor GetTargetColor() const;
307 SkColor background_color() const; 317 SkColor background_color() const;
308 318
309 // Updates the nine patch layer's image, aperture and border. May only be 319 // Updates the nine patch layer's image, aperture and border. May only be
310 // called for LAYER_NINE_PATCH. 320 // called for LAYER_NINE_PATCH.
311 void UpdateNinePatchLayerImage(const gfx::ImageSkia& image); 321 void UpdateNinePatchLayerImage(const gfx::ImageSkia& image);
312 void UpdateNinePatchLayerAperture(const gfx::Rect& aperture_in_dip); 322 void UpdateNinePatchLayerAperture(const gfx::Rect& aperture_in_dip);
313 void UpdateNinePatchLayerBorder(const gfx::Rect& border); 323 void UpdateNinePatchLayerBorder(const gfx::Rect& border);
314 // Updates the area completely occluded by another layer, this can be an 324 // Updates the area completely occluded by another layer, this can be an
315 // empty rectangle if nothing is occluded. 325 // empty rectangle if nothing is occluded.
316 void UpdateNinePatchOcclusion(const gfx::Rect& occlusion); 326 void UpdateNinePatchOcclusion(const gfx::Rect& occlusion);
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407 float GetOpacityForAnimation() const override; 417 float GetOpacityForAnimation() const override;
408 bool GetVisibilityForAnimation() const override; 418 bool GetVisibilityForAnimation() const override;
409 float GetBrightnessForAnimation() const override; 419 float GetBrightnessForAnimation() const override;
410 float GetGrayscaleForAnimation() const override; 420 float GetGrayscaleForAnimation() const override;
411 SkColor GetColorForAnimation() const override; 421 SkColor GetColorForAnimation() const override;
412 float GetDeviceScaleFactor() const override; 422 float GetDeviceScaleFactor() const override;
413 cc::Layer* GetCcLayer() const override; 423 cc::Layer* GetCcLayer() const override;
414 LayerThreadedAnimationDelegate* GetThreadedAnimationDelegate() override; 424 LayerThreadedAnimationDelegate* GetThreadedAnimationDelegate() override;
415 LayerAnimatorCollection* GetLayerAnimatorCollection() override; 425 LayerAnimatorCollection* GetLayerAnimatorCollection() override;
416 426
427 // LayerObserver:
428 void LayerDestroyed(Layer* layer) override;
429
417 // Creates a corresponding composited layer for |type_|. 430 // Creates a corresponding composited layer for |type_|.
418 void CreateCcLayer(); 431 void CreateCcLayer();
419 432
420 // Recomputes and sets to |cc_layer_|. 433 // Recomputes and sets to |cc_layer_|.
421 void RecomputeDrawsContentAndUVRect(); 434 void RecomputeDrawsContentAndUVRect();
422 void RecomputePosition(); 435 void RecomputePosition();
423 436
424 // Set all filters which got applied to the layer. 437 // Set all filters which got applied to the layer.
425 void SetLayerFilters(); 438 void SetLayerFilters();
426 439
427 // Set all filters which got applied to the layer background. 440 // Set all filters which got applied to the layer background.
428 void SetLayerBackgroundFilters(); 441 void SetLayerBackgroundFilters();
429 442
430 // Cleanup |cc_layer_| and replaces it with |new_layer|. 443 // Cleanup |cc_layer_| and replaces it with |new_layer|.
431 void SwitchToLayer(scoped_refptr<cc::Layer> new_layer); 444 void SwitchToLayer(scoped_refptr<cc::Layer> new_layer);
432 445
433 void SetCompositorForAnimatorsInTree(Compositor* compositor); 446 void SetCompositorForAnimatorsInTree(Compositor* compositor);
434 void ResetCompositorForAnimatorsInTree(Compositor* compositor); 447 void ResetCompositorForAnimatorsInTree(Compositor* compositor);
435 448
436 const LayerType type_; 449 const LayerType type_;
437 450
438 Compositor* compositor_; 451 Compositor* compositor_;
439 452
440 Layer* parent_; 453 Layer* parent_;
441 454
442 // This layer's children, in bottom-to-top stacking order. 455 // This layer's children, in bottom-to-top stacking order.
443 std::vector<Layer*> children_; 456 std::vector<Layer*> children_;
444 457
458 std::vector<Layer*> mirrors_; // Not owned.
459 bool sync_bounds_ = false; // Synchronize bounds to mirrors.
sky 2016/10/14 22:36:37 Please add a more descriptive comment. Maybe somet
Dominik Laskowski 2016/10/17 19:53:21 Done.
460
445 gfx::Rect bounds_; 461 gfx::Rect bounds_;
446 gfx::Vector2dF subpixel_position_offset_; 462 gfx::Vector2dF subpixel_position_offset_;
447 463
448 // Visibility of this layer. See SetVisible/IsDrawn for more details. 464 // Visibility of this layer. See SetVisible/IsDrawn for more details.
449 bool visible_; 465 bool visible_;
450 466
451 bool fills_bounds_opaquely_; 467 bool fills_bounds_opaquely_;
452 bool fills_bounds_completely_; 468 bool fills_bounds_completely_;
453 469
454 // Union of damaged rects, in layer space, that SetNeedsDisplayRect should 470 // Union of damaged rects, in layer space, that SetNeedsDisplayRect should
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522 // The size of the frame or texture in DIP, set when SetShowDelegatedContent 538 // The size of the frame or texture in DIP, set when SetShowDelegatedContent
523 // or SetTextureMailbox was called. 539 // or SetTextureMailbox was called.
524 gfx::Size frame_size_in_dip_; 540 gfx::Size frame_size_in_dip_;
525 541
526 DISALLOW_COPY_AND_ASSIGN(Layer); 542 DISALLOW_COPY_AND_ASSIGN(Layer);
527 }; 543 };
528 544
529 } // namespace ui 545 } // namespace ui
530 546
531 #endif // UI_COMPOSITOR_LAYER_H_ 547 #endif // UI_COMPOSITOR_LAYER_H_
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