third_party/WebKit/Source/platform/exported/WebScrollbarThemeGeometryNative.cpp

   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
  36 PassOwnPtr<WebScrollbarThemeGeometryNative> WebScrollbarThemeGeometryNative::create(ScrollbarTheme* theme)
  37 {
  38     return adoptPtr(new WebScrollbarThemeGeometryNative(theme));
  39 }
  40
  41 WebScrollbarThemeGeometryNative::WebScrollbarThemeGeometryNative(ScrollbarTheme* theme)
  42     : m_theme(theme)
  43 {
  44 }
  45
  46 WebScrollbarThemeGeometryNative* WebScrollbarThemeGeometryNative::clone() const
  47 {
  48     return new WebScrollbarThemeGeometryNative(m_theme);
  49 }
  50
  51 int WebScrollbarThemeGeometryNative::thumbPosition(WebScrollbar* scrollbar)
  52 {
  53     WebScrollbarThemeClientImpl client(scrollbar);
  54     return m_theme->thumbPosition(&client);
  55 }
  56
  57 int WebScrollbarThemeGeometryNative::thumbLength(WebScrollbar* scrollbar)
  58 {
  59     WebScrollbarThemeClientImpl client(scrollbar);
  60     return m_theme->thumbLength(&client);
  61 }
  62
  63 int WebScrollbarThemeGeometryNative::trackPosition(WebScrollbar* scrollbar)
  64 {
  65     WebScrollbarThemeClientImpl client(scrollbar);
  66     return m_theme->trackPosition(&client);
  67 }
  68
  69 int WebScrollbarThemeGeometryNative::trackLength(WebScrollbar* scrollbar)
  70 {
  71     WebScrollbarThemeClientImpl client(scrollbar);
  72     return m_theme->trackLength(&client);
  73 }
  74
  75 bool WebScrollbarThemeGeometryNative::hasButtons(WebScrollbar* scrollbar)
  76 {
  77     WebScrollbarThemeClientImpl client(scrollbar);
  78     return m_theme->hasButtons(&client);
  79 }
  80
  81 bool WebScrollbarThemeGeometryNative::hasThumb(WebScrollbar* scrollbar)
  82 {
  83     WebScrollbarThemeClientImpl client(scrollbar);
  84     return m_theme->hasThumb(&client);
  85 }
  86
  87 WebRect WebScrollbarThemeGeometryNative::trackRect(WebScrollbar* scrollbar)
  88 {
  89     WebScrollbarThemeClientImpl client(scrollbar);
  90     return m_theme->trackRect(&client);
  91 }
  92
  93 WebRect WebScrollbarThemeGeometryNative::thumbRect(WebScrollbar* scrollbar)
  94 {
  95     WebScrollbarThemeClientImpl client(scrollbar);
  96     return m_theme->thumbRect(&client);
  97 }
  98
  99 int WebScrollbarThemeGeometryNative::minimumThumbLength(WebScrollbar* scrollbar)
 100 {
 101     WebScrollbarThemeClientImpl client(scrollbar);
 102     return m_theme->minimumThumbLength(&client);
 103 }
 104
 105 int WebScrollbarThemeGeometryNative::scrollbarThickness(WebScrollbar* scrollbar)
 106 {
 107     WebScrollbarThemeClientImpl client(scrollbar);
 108     return m_theme->scrollbarThickness(client.controlSize());
 109 }
 110
 111 WebRect WebScrollbarThemeGeometryNative::backButtonStartRect(WebScrollbar* scrollbar)
 112 {
 113     WebScrollbarThemeClientImpl client(scrollbar);
 114     return m_theme->backButtonRect(&client, BackButtonStartPart, false);
 115 }
 116
 117 WebRect WebScrollbarThemeGeometryNative::backButtonEndRect(WebScrollbar* scrollbar)
 118 {
 119     WebScrollbarThemeClientImpl client(scrollbar);
 120     return m_theme->backButtonRect(&client, BackButtonEndPart, false);
 121 }
 122
 123 WebRect WebScrollbarThemeGeometryNative::forwardButtonStartRect(WebScrollbar* scrollbar)
 124 {
 125     WebScrollbarThemeClientImpl client(scrollbar);
 126     return m_theme->forwardButtonRect(&client, ForwardButtonStartPart, false);
 127 }
 128
 129 WebRect WebScrollbarThemeGeometryNative::forwardButtonEndRect(WebScrollbar* scrollbar)
 130 {
 131     WebScrollbarThemeClientImpl client(scrollbar);
 132     return m_theme->forwardButtonRect(&client, ForwardButtonEndPart, false);
 133 }
 134
 135 WebRect WebScrollbarThemeGeometryNative::constrainTrackRectToTrackPieces(WebScrollbar* scrollbar, const WebRect& rect)
 136 {
 137     WebScrollbarThemeClientImpl client(scrollbar);
 138     return m_theme->constrainTrackRectToTrackPieces(&client, IntRect(rect));
 139 }
 140
 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