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1 /* | 1 /* |
2 * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org> | 2 * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org> |
3 * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org> | 3 * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org> |
4 * Copyright (C) 2009 Google, Inc. | 4 * Copyright (C) 2009 Google, Inc. |
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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26 #include "core/svg/SVGGraphicsElement.h" | 26 #include "core/svg/SVGGraphicsElement.h" |
27 #include "core/svg/SVGUseElement.h" | 27 #include "core/svg/SVGUseElement.h" |
28 | 28 |
29 namespace blink { | 29 namespace blink { |
30 | 30 |
31 LayoutSVGTransformableContainer::LayoutSVGTransformableContainer( | 31 LayoutSVGTransformableContainer::LayoutSVGTransformableContainer( |
32 SVGGraphicsElement* node) | 32 SVGGraphicsElement* node) |
33 : LayoutSVGContainer(node), m_needsTransformUpdate(true) {} | 33 : LayoutSVGContainer(node), m_needsTransformUpdate(true) {} |
34 | 34 |
35 static bool hasValidPredecessor(const Node* node) { | 35 static bool hasValidPredecessor(const Node* node) { |
36 ASSERT(node); | 36 DCHECK(node); |
37 for (node = node->previousSibling(); node; node = node->previousSibling()) { | 37 for (node = node->previousSibling(); node; node = node->previousSibling()) { |
38 if (node->isSVGElement() && toSVGElement(node)->isValid()) | 38 if (node->isSVGElement() && toSVGElement(node)->isValid()) |
39 return true; | 39 return true; |
40 } | 40 } |
41 return false; | 41 return false; |
42 } | 42 } |
43 | 43 |
44 bool LayoutSVGTransformableContainer::isChildAllowed( | 44 bool LayoutSVGTransformableContainer::isChildAllowed( |
45 LayoutObject* child, | 45 LayoutObject* child, |
46 const ComputedStyle& style) const { | 46 const ComputedStyle& style) const { |
47 ASSERT(element()); | 47 DCHECK(element()); |
48 if (isSVGSwitchElement(*element())) { | 48 if (isSVGSwitchElement(*element())) { |
49 Node* node = child->node(); | 49 Node* node = child->node(); |
50 // Reject non-SVG/non-valid elements. | 50 // Reject non-SVG/non-valid elements. |
51 if (!node->isSVGElement() || !toSVGElement(node)->isValid()) | 51 if (!node->isSVGElement() || !toSVGElement(node)->isValid()) |
52 return false; | 52 return false; |
53 // Reject this child if it isn't the first valid node. | 53 // Reject this child if it isn't the first valid node. |
54 if (hasValidPredecessor(node)) | 54 if (hasValidPredecessor(node)) |
55 return false; | 55 return false; |
56 } else if (isSVGAElement(*element())) { | 56 } else if (isSVGAElement(*element())) { |
57 // http://www.w3.org/2003/01/REC-SVG11-20030114-errata#linking-text-environm
ent | 57 // http://www.w3.org/2003/01/REC-SVG11-20030114-errata#linking-text-environm
ent |
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70 if (RuntimeEnabledFeatures::slimmingPaintInvalidationEnabled()) { | 70 if (RuntimeEnabledFeatures::slimmingPaintInvalidationEnabled()) { |
71 // The transform paint property relies on the SVG transform being up-to-date | 71 // The transform paint property relies on the SVG transform being up-to-date |
72 // (see: PaintPropertyTreeBuilder::updateTransformForNonRootSVG). | 72 // (see: PaintPropertyTreeBuilder::updateTransformForNonRootSVG). |
73 setNeedsPaintPropertyUpdate(); | 73 setNeedsPaintPropertyUpdate(); |
74 } | 74 } |
75 m_needsTransformUpdate = true; | 75 m_needsTransformUpdate = true; |
76 } | 76 } |
77 | 77 |
78 SVGTransformChange LayoutSVGTransformableContainer::calculateLocalTransform() { | 78 SVGTransformChange LayoutSVGTransformableContainer::calculateLocalTransform() { |
79 SVGGraphicsElement* element = toSVGGraphicsElement(this->element()); | 79 SVGGraphicsElement* element = toSVGGraphicsElement(this->element()); |
80 ASSERT(element); | 80 DCHECK(element); |
81 | 81 |
82 // If we're either the layoutObject for a <use> element, or for any <g> | 82 // If we're either the layoutObject for a <use> element, or for any <g> |
83 // element inside the shadow tree, that was created during the use/symbol/svg | 83 // element inside the shadow tree, that was created during the use/symbol/svg |
84 // expansion in SVGUseElement. These containers need to respect the | 84 // expansion in SVGUseElement. These containers need to respect the |
85 // translations induced by their corresponding use elements x/y attributes. | 85 // translations induced by their corresponding use elements x/y attributes. |
86 SVGUseElement* useElement = nullptr; | 86 SVGUseElement* useElement = nullptr; |
87 if (isSVGUseElement(*element)) { | 87 if (isSVGUseElement(*element)) { |
88 useElement = toSVGUseElement(element); | 88 useElement = toSVGUseElement(element); |
89 } else if (isSVGGElement(*element) && | 89 } else if (isSVGGElement(*element) && |
90 toSVGGElement(element)->inUseShadowTree()) { | 90 toSVGGElement(element)->inUseShadowTree()) { |
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112 SVGTransformChangeDetector changeDetector(m_localTransform); | 112 SVGTransformChangeDetector changeDetector(m_localTransform); |
113 m_localTransform = | 113 m_localTransform = |
114 element->calculateTransform(SVGElement::IncludeMotionTransform); | 114 element->calculateTransform(SVGElement::IncludeMotionTransform); |
115 m_localTransform.translate(m_additionalTranslation.width(), | 115 m_localTransform.translate(m_additionalTranslation.width(), |
116 m_additionalTranslation.height()); | 116 m_additionalTranslation.height()); |
117 m_needsTransformUpdate = false; | 117 m_needsTransformUpdate = false; |
118 return changeDetector.computeChange(m_localTransform); | 118 return changeDetector.computeChange(m_localTransform); |
119 } | 119 } |
120 | 120 |
121 } // namespace blink | 121 } // namespace blink |
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