OLD | NEW |
1 /* | 1 /* |
2 * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org> | 2 * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org> |
3 * Copyright (C) 2004, 2005, 2007, 2008, 2009 Rob Buis <buis@kde.org> | 3 * Copyright (C) 2004, 2005, 2007, 2008, 2009 Rob Buis <buis@kde.org> |
4 * Copyright (C) 2007 Eric Seidel <eric@webkit.org> | 4 * Copyright (C) 2007 Eric Seidel <eric@webkit.org> |
5 * Copyright (C) 2009 Google, Inc. | 5 * Copyright (C) 2009 Google, Inc. |
6 * Copyright (C) Research In Motion Limited 2011. All rights reserved. | 6 * Copyright (C) Research In Motion Limited 2011. All rights reserved. |
7 * | 7 * |
8 * This library is free software; you can redistribute it and/or | 8 * This library is free software; you can redistribute it and/or |
9 * modify it under the terms of the GNU Library General Public | 9 * modify it under the terms of the GNU Library General Public |
10 * License as published by the Free Software Foundation; either | 10 * License as published by the Free Software Foundation; either |
(...skipping 56 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
67 // The intrinsic aspect ratio of the viewport of SVG content is necessary fo
r example, when including SVG from an 'object' | 67 // The intrinsic aspect ratio of the viewport of SVG content is necessary fo
r example, when including SVG from an 'object' |
68 // element in HTML styled with CSS. It is possible (indeed, common) for an S
VG graphic to have an intrinsic aspect ratio but | 68 // element in HTML styled with CSS. It is possible (indeed, common) for an S
VG graphic to have an intrinsic aspect ratio but |
69 // not to have an intrinsic width or height. The intrinsic aspect ratio must
be calculated based upon the following rules: | 69 // not to have an intrinsic width or height. The intrinsic aspect ratio must
be calculated based upon the following rules: |
70 // - The aspect ratio is calculated by dividing a width by a height. | 70 // - The aspect ratio is calculated by dividing a width by a height. |
71 // - If the 'width' and 'height' of the rootmost 'svg' element are both spec
ified with unit identifiers (in, mm, cm, pt, pc, | 71 // - If the 'width' and 'height' of the rootmost 'svg' element are both spec
ified with unit identifiers (in, mm, cm, pt, pc, |
72 // px, em, ex) or in user units, then the aspect ratio is calculated from
the 'width' and 'height' attributes after | 72 // px, em, ex) or in user units, then the aspect ratio is calculated from
the 'width' and 'height' attributes after |
73 // resolving both values to user units. | 73 // resolving both values to user units. |
74 intrinsicSize.setWidth(floatValueForLength(svg->intrinsicWidth(), 0)); | 74 intrinsicSize.setWidth(floatValueForLength(svg->intrinsicWidth(), 0)); |
75 intrinsicSize.setHeight(floatValueForLength(svg->intrinsicHeight(), 0)); | 75 intrinsicSize.setHeight(floatValueForLength(svg->intrinsicHeight(), 0)); |
76 | 76 |
| 77 if (!isHorizontalWritingMode()) |
| 78 intrinsicSize = intrinsicSize.transposedSize(); |
| 79 |
77 if (!intrinsicSize.isEmpty()) { | 80 if (!intrinsicSize.isEmpty()) { |
78 intrinsicRatio = intrinsicSize.width() / static_cast<double>(intrinsicSi
ze.height()); | 81 intrinsicRatio = intrinsicSize.width() / static_cast<double>(intrinsicSi
ze.height()); |
79 } else { | 82 } else { |
80 // - If either/both of the 'width' and 'height' of the rootmost 'svg' el
ement are in percentage units (or omitted), the | 83 // - If either/both of the 'width' and 'height' of the rootmost 'svg' el
ement are in percentage units (or omitted), the |
81 // aspect ratio is calculated from the width and height values of the
'viewBox' specified for the current SVG document | 84 // aspect ratio is calculated from the width and height values of the
'viewBox' specified for the current SVG document |
82 // fragment. If the 'viewBox' is not correctly specified, or set to 'n
one', the intrinsic aspect ratio cannot be | 85 // fragment. If the 'viewBox' is not correctly specified, or set to 'n
one', the intrinsic aspect ratio cannot be |
83 // calculated and is considered unspecified. | 86 // calculated and is considered unspecified. |
84 FloatSize viewBoxSize = svg->viewBox()->currentValue()->value().size(); | 87 FloatSize viewBoxSize = svg->viewBox()->currentValue()->value().size(); |
85 if (!viewBoxSize.isEmpty()) { | 88 if (!viewBoxSize.isEmpty()) { |
86 // The viewBox can only yield an intrinsic ratio, not an intrinsic s
ize. | 89 // The viewBox can only yield an intrinsic ratio, not an intrinsic s
ize. |
87 intrinsicRatio = viewBoxSize.width() / static_cast<double>(viewBoxSi
ze.height()); | 90 intrinsicRatio = viewBoxSize.width() / static_cast<double>(viewBoxSi
ze.height()); |
| 91 if (!isHorizontalWritingMode()) |
| 92 intrinsicRatio = 1 / intrinsicRatio; |
88 } | 93 } |
89 } | 94 } |
90 } | 95 } |
91 | 96 |
92 bool LayoutSVGRoot::isEmbeddedThroughSVGImage() const | 97 bool LayoutSVGRoot::isEmbeddedThroughSVGImage() const |
93 { | 98 { |
94 return SVGImage::isInSVGImage(toSVGSVGElement(node())); | 99 return SVGImage::isInSVGImage(toSVGSVGElement(node())); |
95 } | 100 } |
96 | 101 |
97 bool LayoutSVGRoot::isEmbeddedThroughFrameContainingSVGDocument() const | 102 bool LayoutSVGRoot::isEmbeddedThroughFrameContainingSVGDocument() const |
98 { | 103 { |
99 if (!node()) | 104 if (!node()) |
100 return false; | 105 return false; |
101 | 106 |
102 LocalFrame* frame = node()->document().frame(); | 107 LocalFrame* frame = node()->document().frame(); |
103 if (!frame) | 108 if (!frame) |
104 return false; | 109 return false; |
105 | 110 |
106 // If our frame has an owner layoutObject, we're embedded through eg. object
/embed/iframe, | 111 // If our frame has an owner layoutObject, we're embedded through eg. object
/embed/iframe, |
107 // but we only negotiate if we're in an SVG document inside a embedded objec
t (object/embed). | 112 // but we only negotiate if we're in an SVG document inside a embedded objec
t (object/embed). |
108 if (!frame->ownerLayoutObject() || !frame->ownerLayoutObject()->isEmbeddedOb
ject()) | 113 if (!frame->ownerLayoutObject() || !frame->ownerLayoutObject()->isEmbeddedOb
ject()) |
109 return false; | 114 return false; |
110 return frame->document()->isSVGDocument(); | 115 return frame->document()->isSVGDocument(); |
111 } | 116 } |
112 | 117 |
113 static inline LayoutUnit resolveLengthAttributeForSVG(const Length& length, floa
t scale, float maxSize) | |
114 { | |
115 return static_cast<LayoutUnit>(valueForLength(length, maxSize) * (length.isF
ixed() ? scale : 1)); | |
116 } | |
117 | |
118 LayoutUnit LayoutSVGRoot::computeReplacedLogicalWidth(ShouldComputePreferred sho
uldComputePreferred) const | 118 LayoutUnit LayoutSVGRoot::computeReplacedLogicalWidth(ShouldComputePreferred sho
uldComputePreferred) const |
119 { | 119 { |
120 SVGSVGElement* svg = toSVGSVGElement(node()); | |
121 ASSERT(svg); | |
122 | |
123 // When we're embedded through SVGImage (border-image/background-image/<html
:img>/...) we're forced to resize to a specific size. | 120 // When we're embedded through SVGImage (border-image/background-image/<html
:img>/...) we're forced to resize to a specific size. |
124 if (!m_containerSize.isEmpty()) | 121 if (!m_containerSize.isEmpty()) |
125 return m_containerSize.width(); | 122 return m_containerSize.width(); |
126 | 123 |
127 if (isEmbeddedThroughFrameContainingSVGDocument()) | 124 if (isEmbeddedThroughFrameContainingSVGDocument()) |
128 return containingBlock()->availableLogicalWidth(); | 125 return containingBlock()->availableLogicalWidth(); |
129 | 126 |
130 if (style()->logicalWidth().isSpecified() || style()->logicalMaxWidth().isSp
ecified()) | 127 if (style()->logicalWidth().isSpecified() || style()->logicalMaxWidth().isSp
ecified()) |
131 return LayoutReplaced::computeReplacedLogicalWidth(shouldComputePreferre
d); | 128 return LayoutReplaced::computeReplacedLogicalWidth(shouldComputePreferre
d); |
132 | 129 |
133 if (svg->hasIntrinsicWidth()) | |
134 return resolveLengthAttributeForSVG(svg->intrinsicWidth(), style()->effe
ctiveZoom(), containingBlock()->availableLogicalWidth().toFloat()); | |
135 | |
136 // SVG embedded via SVGImage (background-image/border-image/etc) / Inline SV
G. | 130 // SVG embedded via SVGImage (background-image/border-image/etc) / Inline SV
G. |
137 return LayoutReplaced::computeReplacedLogicalWidth(shouldComputePreferred); | 131 return LayoutReplaced::computeReplacedLogicalWidth(shouldComputePreferred); |
138 } | 132 } |
139 | 133 |
140 LayoutUnit LayoutSVGRoot::computeReplacedLogicalHeight() const | 134 LayoutUnit LayoutSVGRoot::computeReplacedLogicalHeight() const |
141 { | 135 { |
142 SVGSVGElement* svg = toSVGSVGElement(node()); | |
143 ASSERT(svg); | |
144 | |
145 // When we're embedded through SVGImage (border-image/background-image/<html
:img>/...) we're forced to resize to a specific size. | 136 // When we're embedded through SVGImage (border-image/background-image/<html
:img>/...) we're forced to resize to a specific size. |
146 if (!m_containerSize.isEmpty()) | 137 if (!m_containerSize.isEmpty()) |
147 return m_containerSize.height(); | 138 return m_containerSize.height(); |
148 | 139 |
149 if (isEmbeddedThroughFrameContainingSVGDocument()) | 140 if (isEmbeddedThroughFrameContainingSVGDocument()) |
150 return containingBlock()->availableLogicalHeight(IncludeMarginBorderPadd
ing); | 141 return containingBlock()->availableLogicalHeight(IncludeMarginBorderPadd
ing); |
151 | 142 |
152 if (style()->logicalHeight().isSpecified() || style()->logicalMaxHeight().is
Specified()) | 143 if (style()->logicalHeight().isSpecified() || style()->logicalMaxHeight().is
Specified()) |
153 return LayoutReplaced::computeReplacedLogicalHeight(); | 144 return LayoutReplaced::computeReplacedLogicalHeight(); |
154 | 145 |
155 if (svg->hasIntrinsicHeight()) | |
156 return resolveLengthAttributeForSVG(svg->intrinsicHeight(), style()->eff
ectiveZoom(), containingBlock()->availableLogicalHeight(IncludeMarginBorderPaddi
ng).toFloat()); | |
157 | |
158 // SVG embedded via SVGImage (background-image/border-image/etc) / Inline SV
G. | 146 // SVG embedded via SVGImage (background-image/border-image/etc) / Inline SV
G. |
159 return LayoutReplaced::computeReplacedLogicalHeight(); | 147 return LayoutReplaced::computeReplacedLogicalHeight(); |
160 } | 148 } |
161 | 149 |
162 void LayoutSVGRoot::layout() | 150 void LayoutSVGRoot::layout() |
163 { | 151 { |
164 ASSERT(needsLayout()); | 152 ASSERT(needsLayout()); |
165 LayoutAnalyzer::Scope analyzer(*this); | 153 LayoutAnalyzer::Scope analyzer(*this); |
166 | 154 |
167 bool needsLayout = selfNeedsLayout(); | 155 bool needsLayout = selfNeedsLayout(); |
(...skipping 259 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
427 updateHitTestResult(result, pointInBorderBox); | 415 updateHitTestResult(result, pointInBorderBox); |
428 if (!result.addNodeToListBasedTestResult(node(), locationInContainer
, boundsRect)) | 416 if (!result.addNodeToListBasedTestResult(node(), locationInContainer
, boundsRect)) |
429 return true; | 417 return true; |
430 } | 418 } |
431 } | 419 } |
432 | 420 |
433 return false; | 421 return false; |
434 } | 422 } |
435 | 423 |
436 } | 424 } |
OLD | NEW |