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Side by Side Diff: cc/layers/layer.h

Issue 2769793002: Implement CSS: scroll-boundary-behavior (Closed)
Patch Set: Update WebScrollBoundaryBehavior. Created 3 years, 7 months ago
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1 // Copyright 2010 The Chromium Authors. All rights reserved. 1 // Copyright 2010 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 CC_LAYERS_LAYER_H_ 5 #ifndef CC_LAYERS_LAYER_H_
6 #define CC_LAYERS_LAYER_H_ 6 #define CC_LAYERS_LAYER_H_
7 7
8 #include <stddef.h> 8 #include <stddef.h>
9 #include <stdint.h> 9 #include <stdint.h>
10 10
11 #include <set> 11 #include <set>
12 #include <string> 12 #include <string>
13 #include <unordered_map> 13 #include <unordered_map>
14 #include <vector> 14 #include <vector>
15 15
16 #include "base/callback.h" 16 #include "base/callback.h"
17 #include "base/macros.h" 17 #include "base/macros.h"
18 #include "base/memory/ref_counted.h" 18 #include "base/memory/ref_counted.h"
19 #include "base/observer_list.h" 19 #include "base/observer_list.h"
20 #include "cc/base/filter_operations.h" 20 #include "cc/base/filter_operations.h"
21 #include "cc/base/region.h" 21 #include "cc/base/region.h"
22 #include "cc/benchmarks/micro_benchmark.h" 22 #include "cc/benchmarks/micro_benchmark.h"
23 #include "cc/cc_export.h" 23 #include "cc/cc_export.h"
24 #include "cc/input/input_handler.h" 24 #include "cc/input/input_handler.h"
25 #include "cc/input/scroll_boundary_behavior.h"
25 #include "cc/layers/layer_collections.h" 26 #include "cc/layers/layer_collections.h"
26 #include "cc/layers/layer_position_constraint.h" 27 #include "cc/layers/layer_position_constraint.h"
27 #include "cc/paint/paint_record.h" 28 #include "cc/paint/paint_record.h"
28 #include "cc/trees/element_id.h" 29 #include "cc/trees/element_id.h"
29 #include "cc/trees/mutator_host_client.h" 30 #include "cc/trees/mutator_host_client.h"
30 #include "cc/trees/property_tree.h" 31 #include "cc/trees/property_tree.h"
31 #include "cc/trees/target_property.h" 32 #include "cc/trees/target_property.h"
32 #include "third_party/skia/include/core/SkColor.h" 33 #include "third_party/skia/include/core/SkColor.h"
33 #include "ui/gfx/geometry/point3_f.h" 34 #include "ui/gfx/geometry/point3_f.h"
34 #include "ui/gfx/geometry/rect.h" 35 #include "ui/gfx/geometry/rect.h"
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107 void SetSafeOpaqueBackgroundColor(SkColor background_color); 108 void SetSafeOpaqueBackgroundColor(SkColor background_color);
108 // If contents_opaque(), return an opaque color else return a 109 // If contents_opaque(), return an opaque color else return a
109 // non-opaque color. Tries to return background_color(), if possible. 110 // non-opaque color. Tries to return background_color(), if possible.
110 SkColor SafeOpaqueBackgroundColor() const; 111 SkColor SafeOpaqueBackgroundColor() const;
111 112
112 // A layer's bounds are in logical, non-page-scaled pixels (however, the 113 // A layer's bounds are in logical, non-page-scaled pixels (however, the
113 // root layer's bounds are in physical pixels). 114 // root layer's bounds are in physical pixels).
114 void SetBounds(const gfx::Size& bounds); 115 void SetBounds(const gfx::Size& bounds);
115 gfx::Size bounds() const { return inputs_.bounds; } 116 gfx::Size bounds() const { return inputs_.bounds; }
116 117
118 void SetScrollBoundaryBehavior(ScrollBoundaryBehavior behavior);
bokan 2017/05/19 19:35:57 pass by const-ref
sunyunjia 2017/05/25 20:07:10 Done.
119 ScrollBoundaryBehavior scroll_boundary_behavior() const {
120 return inputs_.scroll_boundary_behavior;
121 }
122
117 void SetMasksToBounds(bool masks_to_bounds); 123 void SetMasksToBounds(bool masks_to_bounds);
118 bool masks_to_bounds() const { return inputs_.masks_to_bounds; } 124 bool masks_to_bounds() const { return inputs_.masks_to_bounds; }
119 125
120 void SetMaskLayer(Layer* mask_layer); 126 void SetMaskLayer(Layer* mask_layer);
121 Layer* mask_layer() { return inputs_.mask_layer.get(); } 127 Layer* mask_layer() { return inputs_.mask_layer.get(); }
122 const Layer* mask_layer() const { return inputs_.mask_layer.get(); } 128 const Layer* mask_layer() const { return inputs_.mask_layer.get(); }
123 129
124 virtual void SetNeedsDisplayRect(const gfx::Rect& dirty_rect); 130 virtual void SetNeedsDisplayRect(const gfx::Rect& dirty_rect);
125 void SetNeedsDisplay() { SetNeedsDisplayRect(gfx::Rect(bounds())); } 131 void SetNeedsDisplay() { SetNeedsDisplayRect(gfx::Rect(bounds())); }
126 132
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586 Layer* clip_parent; 592 Layer* clip_parent;
587 593
588 bool has_will_change_transform_hint : 1; 594 bool has_will_change_transform_hint : 1;
589 595
590 bool hide_layer_and_subtree : 1; 596 bool hide_layer_and_subtree : 1;
591 597
592 // The following elements can not and are not serialized. 598 // The following elements can not and are not serialized.
593 LayerClient* client; 599 LayerClient* client;
594 base::Callback<void(const gfx::ScrollOffset&)> did_scroll_callback; 600 base::Callback<void(const gfx::ScrollOffset&)> did_scroll_callback;
595 std::vector<std::unique_ptr<CopyOutputRequest>> copy_requests; 601 std::vector<std::unique_ptr<CopyOutputRequest>> copy_requests;
602
603 ScrollBoundaryBehavior scroll_boundary_behavior;
596 }; 604 };
597 605
598 Layer* parent_; 606 Layer* parent_;
599 607
600 // Layer instances have a weak pointer to their LayerTreeHost. 608 // Layer instances have a weak pointer to their LayerTreeHost.
601 // This pointer value is nil when a Layer is not in a tree and is 609 // This pointer value is nil when a Layer is not in a tree and is
602 // updated via SetLayerTreeHost() if a layer moves between trees. 610 // updated via SetLayerTreeHost() if a layer moves between trees.
603 LayerTreeHost* layer_tree_host_; 611 LayerTreeHost* layer_tree_host_;
604 612
605 Inputs inputs_; 613 Inputs inputs_;
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630 // These all act like draw properties, so don't need push properties. 638 // These all act like draw properties, so don't need push properties.
631 gfx::Rect visible_layer_rect_; 639 gfx::Rect visible_layer_rect_;
632 size_t num_unclipped_descendants_; 640 size_t num_unclipped_descendants_;
633 641
634 DISALLOW_COPY_AND_ASSIGN(Layer); 642 DISALLOW_COPY_AND_ASSIGN(Layer);
635 }; 643 };
636 644
637 } // namespace cc 645 } // namespace cc
638 646
639 #endif // CC_LAYERS_LAYER_H_ 647 #endif // CC_LAYERS_LAYER_H_
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