1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
// Copyright 2013 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_LAYERS_SOLID_COLOR_SCROLLBAR_LAYER_H_
#define CC_LAYERS_SOLID_COLOR_SCROLLBAR_LAYER_H_
#include "base/macros.h"
#include "cc/base/cc_export.h"
#include "cc/layers/layer.h"
#include "cc/layers/scrollbar_layer_interface.h"
namespace cc {
class CC_EXPORT SolidColorScrollbarLayer : public ScrollbarLayerInterface,
public Layer {
public:
std::unique_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override;
static scoped_refptr<SolidColorScrollbarLayer> Create(
ScrollbarOrientation orientation,
int thumb_thickness,
int track_start,
bool is_left_side_vertical_scrollbar,
int scroll_layer_id);
// Layer overrides.
bool OpacityCanAnimateOnImplThread() const override;
bool AlwaysUseActiveTreeOpacity() const override;
ScrollbarLayerInterface* ToScrollbarLayer() override;
void SetOpacity(float opacity) override;
void PushPropertiesTo(LayerImpl* layer) override;
void SetNeedsDisplayRect(const gfx::Rect& rect) override;
// ScrollbarLayerInterface
int ScrollLayerId() const override;
void SetScrollLayer(int layer_id) override;
ScrollbarOrientation orientation() const override;
int thumb_thickness() const {
return solid_color_scrollbar_layer_inputs_.thumb_thickness;
}
int track_start() const {
return solid_color_scrollbar_layer_inputs_.track_start;
}
bool is_left_side_vertical_scrollbar() const {
return solid_color_scrollbar_layer_inputs_.is_left_side_vertical_scrollbar;
}
protected:
SolidColorScrollbarLayer(ScrollbarOrientation orientation,
int thumb_thickness,
int track_start,
bool is_left_side_vertical_scrollbar,
int scroll_layer_id);
~SolidColorScrollbarLayer() override;
private:
friend class LayerSerializationTest;
// Encapsulate all data, callbacks, interfaces received from the embedder.
struct SolidColorScrollbarLayerInputs {
SolidColorScrollbarLayerInputs(ScrollbarOrientation orientation,
int thumb_thickness,
int track_start,
bool is_left_side_vertical_scrollbar,
int scroll_layer_id);
~SolidColorScrollbarLayerInputs();
int scroll_layer_id;
ScrollbarOrientation orientation;
int thumb_thickness;
int track_start;
bool is_left_side_vertical_scrollbar;
};
SolidColorScrollbarLayerInputs solid_color_scrollbar_layer_inputs_;
DISALLOW_COPY_AND_ASSIGN(SolidColorScrollbarLayer);
};
} // namespace cc
#endif // CC_LAYERS_SOLID_COLOR_SCROLLBAR_LAYER_H_
|