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1 /* | 1 /* |
2 * Copyright (C) 2006 Apple Computer, Inc. | 2 * Copyright (C) 2006 Apple Computer, Inc. |
3 * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org> | 3 * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org> |
4 * Copyright (C) Research In Motion Limited 2010. All rights reserved. | 4 * Copyright (C) Research In Motion Limited 2010. All rights reserved. |
5 * | 5 * |
6 * This library is free software; you can redistribute it and/or | 6 * This library is free software; you can redistribute it and/or |
7 * modify it under the terms of the GNU Library General Public | 7 * modify it under the terms of the GNU Library General Public |
8 * License as published by the Free Software Foundation; either | 8 * License as published by the Free Software Foundation; either |
9 * version 2 of the License, or (at your option) any later version. | 9 * version 2 of the License, or (at your option) any later version. |
10 * | 10 * |
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27 #include "core/layout/svg/SVGResourcesCache.h" | 27 #include "core/layout/svg/SVGResourcesCache.h" |
28 #include "core/style/ShadowList.h" | 28 #include "core/style/ShadowList.h" |
29 #include "core/svg/SVGElement.h" | 29 #include "core/svg/SVGElement.h" |
30 | 30 |
31 namespace blink { | 31 namespace blink { |
32 | 32 |
33 LayoutSVGBlock::LayoutSVGBlock(SVGElement* element) | 33 LayoutSVGBlock::LayoutSVGBlock(SVGElement* element) |
34 : LayoutBlockFlow(element) {} | 34 : LayoutBlockFlow(element) {} |
35 | 35 |
36 bool LayoutSVGBlock::allowsOverflowClip() const { | 36 bool LayoutSVGBlock::allowsOverflowClip() const { |
37 // LayoutSVGBlock, used by Layout(SVGText|ForeignObject), is not allowed to ha
ve overflow clip. | 37 // LayoutSVGBlock, used by Layout(SVGText|ForeignObject), is not allowed to |
38 // LayoutBlock assumes a layer to be present when the overflow clip functional
ity is requested. Both | 38 // have overflow clip. |
39 // Layout(SVGText|ForeignObject) return 'NoPaintLayer' on 'layerTypeRequired'.
Fine for LayoutSVGText. | 39 // LayoutBlock assumes a layer to be present when the overflow clip |
| 40 // functionality is requested. Both Layout(SVGText|ForeignObject) return |
| 41 // 'NoPaintLayer' on 'layerTypeRequired'. |
| 42 // Fine for LayoutSVGText. |
40 // | 43 // |
41 // If we want to support overflow rules for <foreignObject> we can choose betw
een two solutions: | 44 // If we want to support overflow rules for <foreignObject> we can choose |
| 45 // between two solutions: |
42 // a) make LayoutSVGForeignObject require layers and SVG layer aware | 46 // a) make LayoutSVGForeignObject require layers and SVG layer aware |
43 // b) refactor overflow logic out of Layer (as suggested by dhyatt), which is
a large task | 47 // b) refactor overflow logic out of Layer (as suggested by dhyatt), which is |
| 48 // a large task |
44 // | 49 // |
45 // Until this is resolved, disable overflow support. Opera/FF don't support it
as well at the moment (Feb 2010). | 50 // Until this is resolved, disable overflow support. Opera/FF don't support it |
| 51 // as well at the moment (Feb 2010). |
46 // | 52 // |
47 // Note: This does NOT affect overflow handling on outer/inner <svg> elements
- this is handled | 53 // Note: This does NOT affect overflow handling on outer/inner <svg> elements |
48 // manually by LayoutSVGRoot - which owns the documents enclosing root layer a
nd thus works fine. | 54 // - this is handled |
| 55 // manually by LayoutSVGRoot - which owns the documents enclosing root layer |
| 56 // and thus works fine. |
49 return false; | 57 return false; |
50 } | 58 } |
51 | 59 |
52 void LayoutSVGBlock::absoluteRects(Vector<IntRect>&, const LayoutPoint&) const { | 60 void LayoutSVGBlock::absoluteRects(Vector<IntRect>&, const LayoutPoint&) const { |
53 // This code path should never be taken for SVG, as we're assuming useTransfor
ms=true everywhere, absoluteQuads should be used. | 61 // This code path should never be taken for SVG, as we're assuming |
| 62 // useTransforms=true everywhere, absoluteQuads should be used. |
54 ASSERT_NOT_REACHED(); | 63 ASSERT_NOT_REACHED(); |
55 } | 64 } |
56 | 65 |
57 void LayoutSVGBlock::willBeDestroyed() { | 66 void LayoutSVGBlock::willBeDestroyed() { |
58 SVGResourcesCache::clientDestroyed(this); | 67 SVGResourcesCache::clientDestroyed(this); |
59 LayoutBlockFlow::willBeDestroyed(); | 68 LayoutBlockFlow::willBeDestroyed(); |
60 } | 69 } |
61 | 70 |
62 void LayoutSVGBlock::styleDidChange(StyleDifference diff, | 71 void LayoutSVGBlock::styleDidChange(StyleDifference diff, |
63 const ComputedStyle* oldStyle) { | 72 const ComputedStyle* oldStyle) { |
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116 | 125 |
117 bool LayoutSVGBlock::nodeAtPoint(HitTestResult&, | 126 bool LayoutSVGBlock::nodeAtPoint(HitTestResult&, |
118 const HitTestLocation&, | 127 const HitTestLocation&, |
119 const LayoutPoint&, | 128 const LayoutPoint&, |
120 HitTestAction) { | 129 HitTestAction) { |
121 ASSERT_NOT_REACHED(); | 130 ASSERT_NOT_REACHED(); |
122 return false; | 131 return false; |
123 } | 132 } |
124 | 133 |
125 } // namespace blink | 134 } // namespace blink |
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