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1 /* | 1 /* |
2 * Copyright (C) 2008 Apple Inc. All Rights Reserved. | 2 * Copyright (C) 2008 Apple Inc. All Rights Reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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81 { | 81 { |
82 if (m_part == ScrollbarBGPart) { | 82 if (m_part == ScrollbarBGPart) { |
83 computeScrollbarWidth(); | 83 computeScrollbarWidth(); |
84 setHeight(m_scrollbar->height()); | 84 setHeight(m_scrollbar->height()); |
85 } else { | 85 } else { |
86 setWidth(m_scrollbar->width()); | 86 setWidth(m_scrollbar->width()); |
87 computeScrollbarHeight(); | 87 computeScrollbarHeight(); |
88 } | 88 } |
89 } | 89 } |
90 | 90 |
91 static int calcScrollbarThicknessUsing(SizeType sizeType, const Length& length,
int containingLength, RenderView* renderView) | 91 static int calcScrollbarThicknessUsing(SizeType sizeType, const Length& length,
int containingLength) |
92 { | 92 { |
93 if (!length.isIntrinsicOrAuto() || (sizeType == MinSize && length.isAuto())) | 93 if (!length.isIntrinsicOrAuto() || (sizeType == MinSize && length.isAuto())) |
94 return minimumValueForLength(length, containingLength, renderView); | 94 return minimumValueForLength(length, containingLength); |
95 return ScrollbarTheme::theme()->scrollbarThickness(); | 95 return ScrollbarTheme::theme()->scrollbarThickness(); |
96 } | 96 } |
97 | 97 |
98 void RenderScrollbarPart::computeScrollbarWidth() | 98 void RenderScrollbarPart::computeScrollbarWidth() |
99 { | 99 { |
100 if (!m_scrollbar->owningRenderer()) | 100 if (!m_scrollbar->owningRenderer()) |
101 return; | 101 return; |
102 RenderView* renderView = view(); | |
103 // FIXME: We are querying layout information but nothing guarantees that it'
s up-to-date, especially since we are called at style change. | 102 // FIXME: We are querying layout information but nothing guarantees that it'
s up-to-date, especially since we are called at style change. |
104 // FIXME: Querying the style's border information doesn't work on table cell
s with collapsing borders. | 103 // FIXME: Querying the style's border information doesn't work on table cell
s with collapsing borders. |
105 int visibleSize = m_scrollbar->owningRenderer()->width() - m_scrollbar->owni
ngRenderer()->style()->borderLeftWidth() - m_scrollbar->owningRenderer()->style(
)->borderRightWidth(); | 104 int visibleSize = m_scrollbar->owningRenderer()->width() - m_scrollbar->owni
ngRenderer()->style()->borderLeftWidth() - m_scrollbar->owningRenderer()->style(
)->borderRightWidth(); |
106 int w = calcScrollbarThicknessUsing(MainOrPreferredSize, style()->width(), v
isibleSize, renderView); | 105 int w = calcScrollbarThicknessUsing(MainOrPreferredSize, style()->width(), v
isibleSize); |
107 int minWidth = calcScrollbarThicknessUsing(MinSize, style()->minWidth(), vis
ibleSize, renderView); | 106 int minWidth = calcScrollbarThicknessUsing(MinSize, style()->minWidth(), vis
ibleSize); |
108 int maxWidth = style()->maxWidth().isUndefined() ? w : calcScrollbarThicknes
sUsing(MaxSize, style()->maxWidth(), visibleSize, renderView); | 107 int maxWidth = style()->maxWidth().isUndefined() ? w : calcScrollbarThicknes
sUsing(MaxSize, style()->maxWidth(), visibleSize); |
109 setWidth(max(minWidth, min(maxWidth, w))); | 108 setWidth(max(minWidth, min(maxWidth, w))); |
110 | 109 |
111 // Buttons and track pieces can all have margins along the axis of the scrol
lbar. | 110 // Buttons and track pieces can all have margins along the axis of the scrol
lbar. |
112 m_marginBox.setLeft(minimumValueForLength(style()->marginLeft(), visibleSize
, renderView)); | 111 m_marginBox.setLeft(minimumValueForLength(style()->marginLeft(), visibleSize
)); |
113 m_marginBox.setRight(minimumValueForLength(style()->marginRight(), visibleSi
ze, renderView)); | 112 m_marginBox.setRight(minimumValueForLength(style()->marginRight(), visibleSi
ze)); |
114 } | 113 } |
115 | 114 |
116 void RenderScrollbarPart::computeScrollbarHeight() | 115 void RenderScrollbarPart::computeScrollbarHeight() |
117 { | 116 { |
118 if (!m_scrollbar->owningRenderer()) | 117 if (!m_scrollbar->owningRenderer()) |
119 return; | 118 return; |
120 RenderView* renderView = view(); | |
121 // FIXME: We are querying layout information but nothing guarantees that it'
s up-to-date, especially since we are called at style change. | 119 // FIXME: We are querying layout information but nothing guarantees that it'
s up-to-date, especially since we are called at style change. |
122 // FIXME: Querying the style's border information doesn't work on table cell
s with collapsing borders. | 120 // FIXME: Querying the style's border information doesn't work on table cell
s with collapsing borders. |
123 int visibleSize = m_scrollbar->owningRenderer()->height() - m_scrollbar->ow
ningRenderer()->style()->borderTopWidth() - m_scrollbar->owningRenderer()->style
()->borderBottomWidth(); | 121 int visibleSize = m_scrollbar->owningRenderer()->height() - m_scrollbar->ow
ningRenderer()->style()->borderTopWidth() - m_scrollbar->owningRenderer()->style
()->borderBottomWidth(); |
124 int h = calcScrollbarThicknessUsing(MainOrPreferredSize, style()->height(),
visibleSize, renderView); | 122 int h = calcScrollbarThicknessUsing(MainOrPreferredSize, style()->height(),
visibleSize); |
125 int minHeight = calcScrollbarThicknessUsing(MinSize, style()->minHeight(), v
isibleSize, renderView); | 123 int minHeight = calcScrollbarThicknessUsing(MinSize, style()->minHeight(), v
isibleSize); |
126 int maxHeight = style()->maxHeight().isUndefined() ? h : calcScrollbarThickn
essUsing(MaxSize, style()->maxHeight(), visibleSize, renderView); | 124 int maxHeight = style()->maxHeight().isUndefined() ? h : calcScrollbarThickn
essUsing(MaxSize, style()->maxHeight(), visibleSize); |
127 setHeight(max(minHeight, min(maxHeight, h))); | 125 setHeight(max(minHeight, min(maxHeight, h))); |
128 | 126 |
129 // Buttons and track pieces can all have margins along the axis of the scrol
lbar. | 127 // Buttons and track pieces can all have margins along the axis of the scrol
lbar. |
130 m_marginBox.setTop(minimumValueForLength(style()->marginTop(), visibleSize,
renderView)); | 128 m_marginBox.setTop(minimumValueForLength(style()->marginTop(), visibleSize))
; |
131 m_marginBox.setBottom(minimumValueForLength(style()->marginBottom(), visible
Size, renderView)); | 129 m_marginBox.setBottom(minimumValueForLength(style()->marginBottom(), visible
Size)); |
132 } | 130 } |
133 | 131 |
134 void RenderScrollbarPart::computePreferredLogicalWidths() | 132 void RenderScrollbarPart::computePreferredLogicalWidths() |
135 { | 133 { |
136 if (!preferredLogicalWidthsDirty()) | 134 if (!preferredLogicalWidthsDirty()) |
137 return; | 135 return; |
138 | 136 |
139 m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth = 0; | 137 m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth = 0; |
140 | 138 |
141 clearPreferredLogicalWidthsDirty(); | 139 clearPreferredLogicalWidthsDirty(); |
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198 } | 196 } |
199 | 197 |
200 RenderObject* RenderScrollbarPart::rendererOwningScrollbar() const | 198 RenderObject* RenderScrollbarPart::rendererOwningScrollbar() const |
201 { | 199 { |
202 if (!m_scrollbar) | 200 if (!m_scrollbar) |
203 return 0; | 201 return 0; |
204 return m_scrollbar->owningRenderer(); | 202 return m_scrollbar->owningRenderer(); |
205 } | 203 } |
206 | 204 |
207 } | 205 } |
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