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Side by Side Diff: cc/layers/layer_impl.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 2011 The Chromium Authors. All rights reserved. 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 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_IMPL_H_ 5 #ifndef CC_LAYERS_LAYER_IMPL_H_
6 #define CC_LAYERS_LAYER_IMPL_H_ 6 #define CC_LAYERS_LAYER_IMPL_H_
7 7
8 #include <stddef.h> 8 #include <stddef.h>
9 #include <stdint.h> 9 #include <stdint.h>
10 10
11 #include <map> 11 #include <map>
12 #include <memory> 12 #include <memory>
13 #include <set> 13 #include <set>
14 #include <string> 14 #include <string>
15 #include <vector> 15 #include <vector>
16 16
17 #include "base/logging.h" 17 #include "base/logging.h"
18 #include "base/macros.h" 18 #include "base/macros.h"
19 #include "base/memory/ptr_util.h" 19 #include "base/memory/ptr_util.h"
20 #include "base/values.h" 20 #include "base/values.h"
21 #include "cc/base/region.h" 21 #include "cc/base/region.h"
22 #include "cc/base/synced_property.h" 22 #include "cc/base/synced_property.h"
23 #include "cc/cc_export.h" 23 #include "cc/cc_export.h"
24 #include "cc/debug/layer_tree_debug_state.h" 24 #include "cc/debug/layer_tree_debug_state.h"
25 #include "cc/input/input_handler.h" 25 #include "cc/input/input_handler.h"
26 #include "cc/input/scroll_boundary_behavior.h"
26 #include "cc/layers/draw_properties.h" 27 #include "cc/layers/draw_properties.h"
27 #include "cc/layers/layer_collections.h" 28 #include "cc/layers/layer_collections.h"
28 #include "cc/layers/layer_impl_test_properties.h" 29 #include "cc/layers/layer_impl_test_properties.h"
29 #include "cc/layers/layer_position_constraint.h" 30 #include "cc/layers/layer_position_constraint.h"
30 #include "cc/layers/performance_properties.h" 31 #include "cc/layers/performance_properties.h"
31 #include "cc/layers/render_surface_impl.h" 32 #include "cc/layers/render_surface_impl.h"
32 #include "cc/quads/shared_quad_state.h" 33 #include "cc/quads/shared_quad_state.h"
33 #include "cc/resources/resource_provider.h" 34 #include "cc/resources/resource_provider.h"
34 #include "cc/tiles/tile_priority.h" 35 #include "cc/tiles/tile_priority.h"
35 #include "cc/trees/element_id.h" 36 #include "cc/trees/element_id.h"
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288 return static_cast<ViewportLayerType>(viewport_layer_type_); 289 return static_cast<ViewportLayerType>(viewport_layer_type_);
289 } 290 }
290 291
291 void SetCurrentScrollOffset(const gfx::ScrollOffset& scroll_offset); 292 void SetCurrentScrollOffset(const gfx::ScrollOffset& scroll_offset);
292 gfx::ScrollOffset CurrentScrollOffset() const; 293 gfx::ScrollOffset CurrentScrollOffset() const;
293 294
294 gfx::ScrollOffset MaxScrollOffset() const; 295 gfx::ScrollOffset MaxScrollOffset() const;
295 gfx::ScrollOffset ClampScrollOffsetToLimits(gfx::ScrollOffset offset) const; 296 gfx::ScrollOffset ClampScrollOffsetToLimits(gfx::ScrollOffset offset) const;
296 gfx::Vector2dF ClampScrollToMaxScrollOffset(); 297 gfx::Vector2dF ClampScrollToMaxScrollOffset();
297 298
299 void SetScrollBoundaryBehavior(ScrollBoundaryBehavior);
bokan 2017/05/19 19:35:57 pass by const-ref
sunyunjia 2017/05/25 20:07:10 Done.
300 ScrollBoundaryBehavior scroll_boundary_behavior() {
301 return scroll_boundary_behavior_;
302 }
303
298 // Returns the delta of the scroll that was outside of the bounds of the 304 // Returns the delta of the scroll that was outside of the bounds of the
299 // initial scroll 305 // initial scroll
300 gfx::Vector2dF ScrollBy(const gfx::Vector2dF& scroll); 306 gfx::Vector2dF ScrollBy(const gfx::Vector2dF& scroll);
301 307
302 void SetScrollClipLayer(int scroll_clip_layer_id); 308 void SetScrollClipLayer(int scroll_clip_layer_id);
303 int scroll_clip_layer_id() const { return scroll_clip_layer_id_; } 309 int scroll_clip_layer_id() const { return scroll_clip_layer_id_; }
304 LayerImpl* scroll_clip_layer() const; 310 LayerImpl* scroll_clip_layer() const;
305 bool scrollable() const; 311 bool scrollable() const;
306 312
307 void set_user_scrollable_horizontal(bool scrollable); 313 void set_user_scrollable_horizontal(bool scrollable);
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570 bool has_will_change_transform_hint_ : 1; 576 bool has_will_change_transform_hint_ : 1;
571 bool needs_push_properties_ : 1; 577 bool needs_push_properties_ : 1;
572 bool scrollbars_hidden_ : 1; 578 bool scrollbars_hidden_ : 1;
573 579
574 // The needs_show_scrollbars_ bit tracks a pending request from Blink to show 580 // The needs_show_scrollbars_ bit tracks a pending request from Blink to show
575 // the overlay scrollbars. It's set on the scroll layer (not the scrollbar 581 // the overlay scrollbars. It's set on the scroll layer (not the scrollbar
576 // layers) and consumed by LayerTreeImpl::PushPropertiesTo during activation. 582 // layers) and consumed by LayerTreeImpl::PushPropertiesTo during activation.
577 bool needs_show_scrollbars_ : 1; 583 bool needs_show_scrollbars_ : 1;
578 584
579 bool raster_even_if_not_in_rsll_ : 1; 585 bool raster_even_if_not_in_rsll_ : 1;
586 ScrollBoundaryBehavior scroll_boundary_behavior_;
580 587
581 DISALLOW_COPY_AND_ASSIGN(LayerImpl); 588 DISALLOW_COPY_AND_ASSIGN(LayerImpl);
582 }; 589 };
583 590
584 } // namespace cc 591 } // namespace cc
585 592
586 #endif // CC_LAYERS_LAYER_IMPL_H_ 593 #endif // CC_LAYERS_LAYER_IMPL_H_
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