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
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
/*
* Copyright (C) 2008 Apple Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef LayoutScrollbarTheme_h
#define LayoutScrollbarTheme_h
#include "platform/scroll/ScrollbarTheme.h"
namespace blink {
class PlatformMouseEvent;
class LayoutScrollbarTheme final : public ScrollbarTheme {
public:
~LayoutScrollbarTheme() override {}
int scrollbarThickness(ScrollbarControlSize controlSize) override {
return ScrollbarTheme::theme().scrollbarThickness(controlSize);
}
WebScrollbarButtonsPlacement buttonsPlacement() const override {
return ScrollbarTheme::theme().buttonsPlacement();
}
void paintScrollCorner(GraphicsContext&,
const DisplayItemClient&,
const IntRect& cornerRect) override;
bool shouldCenterOnThumb(const ScrollbarThemeClient& scrollbar,
const PlatformMouseEvent& event) override {
return ScrollbarTheme::theme().shouldCenterOnThumb(scrollbar, event);
}
bool shouldSnapBackToDragOrigin(const ScrollbarThemeClient& scrollbar,
const PlatformMouseEvent& event) override {
return ScrollbarTheme::theme().shouldSnapBackToDragOrigin(scrollbar, event);
}
double initialAutoscrollTimerDelay() override {
return ScrollbarTheme::theme().initialAutoscrollTimerDelay();
}
double autoscrollTimerDelay() override {
return ScrollbarTheme::theme().autoscrollTimerDelay();
}
void registerScrollbar(ScrollbarThemeClient& scrollbar) override {
return ScrollbarTheme::theme().registerScrollbar(scrollbar);
}
void unregisterScrollbar(ScrollbarThemeClient& scrollbar) override {
return ScrollbarTheme::theme().unregisterScrollbar(scrollbar);
}
int minimumThumbLength(const ScrollbarThemeClient&) override;
void buttonSizesAlongTrackAxis(const ScrollbarThemeClient&,
int& beforeSize,
int& afterSize);
static LayoutScrollbarTheme* layoutScrollbarTheme();
protected:
bool hasButtons(const ScrollbarThemeClient&) override;
bool hasThumb(const ScrollbarThemeClient&) override;
IntRect backButtonRect(const ScrollbarThemeClient&,
ScrollbarPart,
bool painting = false) override;
IntRect forwardButtonRect(const ScrollbarThemeClient&,
ScrollbarPart,
bool painting = false) override;
IntRect trackRect(const ScrollbarThemeClient&,
bool painting = false) override;
void paintScrollbarBackground(GraphicsContext&, const Scrollbar&) override;
void paintTrackBackground(GraphicsContext&,
const Scrollbar&,
const IntRect&) override;
void paintTrackPiece(GraphicsContext&,
const Scrollbar&,
const IntRect&,
ScrollbarPart) override;
void paintButton(GraphicsContext&,
const Scrollbar&,
const IntRect&,
ScrollbarPart) override;
void paintThumb(GraphicsContext&, const Scrollbar&, const IntRect&) override;
void paintTickmarks(GraphicsContext&,
const Scrollbar&,
const IntRect&) override;
IntRect constrainTrackRectToTrackPieces(const ScrollbarThemeClient&,
const IntRect&) override;
};
} // namespace blink
#endif // LayoutScrollbarTheme_h
|
