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1 /*
2  * Copyright (C) 2012 Google Inc. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  *
8  * 1.  Redistributions of source code must retain the above copyright
9  *     notice, this list of conditions and the following disclaimer.
10  * 2.  Redistributions in binary form must reproduce the above copyright
11  *     notice, this list of conditions and the following disclaimer in the
12  *     documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
18  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #include "config.h"
27 
28 #include "platform/exported/WebScrollbarThemeGeometryNative.h"
29 
30 #include "platform/exported/WebScrollbarThemeClientImpl.h"
31 #include "platform/scroll/ScrollbarTheme.h"
32 #include "public/platform/WebScrollbar.h"
33 
34 namespace blink {
35 
create(ScrollbarTheme * theme)36 PassOwnPtr<WebScrollbarThemeGeometryNative> WebScrollbarThemeGeometryNative::create(ScrollbarTheme* theme)
37 {
38     return adoptPtr(new WebScrollbarThemeGeometryNative(theme));
39 }
40 
WebScrollbarThemeGeometryNative(ScrollbarTheme * theme)41 WebScrollbarThemeGeometryNative::WebScrollbarThemeGeometryNative(ScrollbarTheme* theme)
42     : m_theme(theme)
43 {
44 }
45 
clone() const46 WebScrollbarThemeGeometryNative* WebScrollbarThemeGeometryNative::clone() const
47 {
48     return new WebScrollbarThemeGeometryNative(m_theme);
49 }
50 
thumbPosition(WebScrollbar * scrollbar)51 int WebScrollbarThemeGeometryNative::thumbPosition(WebScrollbar* scrollbar)
52 {
53     WebScrollbarThemeClientImpl client(scrollbar);
54     return m_theme->thumbPosition(&client);
55 }
56 
thumbLength(WebScrollbar * scrollbar)57 int WebScrollbarThemeGeometryNative::thumbLength(WebScrollbar* scrollbar)
58 {
59     WebScrollbarThemeClientImpl client(scrollbar);
60     return m_theme->thumbLength(&client);
61 }
62 
trackPosition(WebScrollbar * scrollbar)63 int WebScrollbarThemeGeometryNative::trackPosition(WebScrollbar* scrollbar)
64 {
65     WebScrollbarThemeClientImpl client(scrollbar);
66     return m_theme->trackPosition(&client);
67 }
68 
trackLength(WebScrollbar * scrollbar)69 int WebScrollbarThemeGeometryNative::trackLength(WebScrollbar* scrollbar)
70 {
71     WebScrollbarThemeClientImpl client(scrollbar);
72     return m_theme->trackLength(&client);
73 }
74 
hasButtons(WebScrollbar * scrollbar)75 bool WebScrollbarThemeGeometryNative::hasButtons(WebScrollbar* scrollbar)
76 {
77     WebScrollbarThemeClientImpl client(scrollbar);
78     return m_theme->hasButtons(&client);
79 }
80 
hasThumb(WebScrollbar * scrollbar)81 bool WebScrollbarThemeGeometryNative::hasThumb(WebScrollbar* scrollbar)
82 {
83     WebScrollbarThemeClientImpl client(scrollbar);
84     return m_theme->hasThumb(&client);
85 }
86 
trackRect(WebScrollbar * scrollbar)87 WebRect WebScrollbarThemeGeometryNative::trackRect(WebScrollbar* scrollbar)
88 {
89     WebScrollbarThemeClientImpl client(scrollbar);
90     return m_theme->trackRect(&client);
91 }
92 
thumbRect(WebScrollbar * scrollbar)93 WebRect WebScrollbarThemeGeometryNative::thumbRect(WebScrollbar* scrollbar)
94 {
95     WebScrollbarThemeClientImpl client(scrollbar);
96     return m_theme->thumbRect(&client);
97 }
98 
minimumThumbLength(WebScrollbar * scrollbar)99 int WebScrollbarThemeGeometryNative::minimumThumbLength(WebScrollbar* scrollbar)
100 {
101     WebScrollbarThemeClientImpl client(scrollbar);
102     return m_theme->minimumThumbLength(&client);
103 }
104 
scrollbarThickness(WebScrollbar * scrollbar)105 int WebScrollbarThemeGeometryNative::scrollbarThickness(WebScrollbar* scrollbar)
106 {
107     WebScrollbarThemeClientImpl client(scrollbar);
108     return m_theme->scrollbarThickness(client.controlSize());
109 }
110 
backButtonStartRect(WebScrollbar * scrollbar)111 WebRect WebScrollbarThemeGeometryNative::backButtonStartRect(WebScrollbar* scrollbar)
112 {
113     WebScrollbarThemeClientImpl client(scrollbar);
114     return m_theme->backButtonRect(&client, BackButtonStartPart, false);
115 }
116 
backButtonEndRect(WebScrollbar * scrollbar)117 WebRect WebScrollbarThemeGeometryNative::backButtonEndRect(WebScrollbar* scrollbar)
118 {
119     WebScrollbarThemeClientImpl client(scrollbar);
120     return m_theme->backButtonRect(&client, BackButtonEndPart, false);
121 }
122 
forwardButtonStartRect(WebScrollbar * scrollbar)123 WebRect WebScrollbarThemeGeometryNative::forwardButtonStartRect(WebScrollbar* scrollbar)
124 {
125     WebScrollbarThemeClientImpl client(scrollbar);
126     return m_theme->forwardButtonRect(&client, ForwardButtonStartPart, false);
127 }
128 
forwardButtonEndRect(WebScrollbar * scrollbar)129 WebRect WebScrollbarThemeGeometryNative::forwardButtonEndRect(WebScrollbar* scrollbar)
130 {
131     WebScrollbarThemeClientImpl client(scrollbar);
132     return m_theme->forwardButtonRect(&client, ForwardButtonEndPart, false);
133 }
134 
constrainTrackRectToTrackPieces(WebScrollbar * scrollbar,const WebRect & rect)135 WebRect WebScrollbarThemeGeometryNative::constrainTrackRectToTrackPieces(WebScrollbar* scrollbar, const WebRect& rect)
136 {
137     WebScrollbarThemeClientImpl client(scrollbar);
138     return m_theme->constrainTrackRectToTrackPieces(&client, IntRect(rect));
139 }
140 
splitTrack(WebScrollbar * scrollbar,const WebRect & webTrack,WebRect & webStartTrack,WebRect & webThumb,WebRect & webEndTrack)141 void WebScrollbarThemeGeometryNative::splitTrack(WebScrollbar* scrollbar, const WebRect& webTrack, WebRect& webStartTrack, WebRect& webThumb, WebRect& webEndTrack)
142 {
143     WebScrollbarThemeClientImpl client(scrollbar);
144     IntRect track(webTrack);
145     IntRect startTrack;
146     IntRect thumb;
147     IntRect endTrack;
148     m_theme->splitTrack(&client, track, startTrack, thumb, endTrack);
149 
150     webStartTrack = startTrack;
151     webThumb = thumb;
152     webEndTrack = endTrack;
153 }
154 
155 } // namespace blink
156