1 /* 2 * Copyright (C) 2006 Oliver Hunt <ojh16 (at) student.canterbury.ac.nz> 3 * Copyright (C) 2006 Apple Inc. All rights reserved. 4 * Copyright (C) Research In Motion Limited 2010. All rights reserved. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public License 17 * along with this library; see the file COPYING.LIB. If not, write to 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 */ 21 22 #include "config.h" 23 24 #include "core/rendering/svg/RenderSVGInline.h" 25 26 #include "core/rendering/svg/RenderSVGText.h" 27 #include "core/rendering/svg/SVGInlineFlowBox.h" 28 #include "core/rendering/svg/SVGRenderSupport.h" 29 #include "core/rendering/svg/SVGResourcesCache.h" 30 #include "core/svg/SVGAElement.h" 31 32 namespace blink { 33 34 bool RenderSVGInline::isChildAllowed(RenderObject* child, RenderStyle* style) const 35 { 36 if (child->isText()) 37 return SVGRenderSupport::isRenderableTextNode(child); 38 39 if (isSVGAElement(*node())) { 40 // Disallow direct descendant 'a'. 41 if (isSVGAElement(*child->node())) 42 return false; 43 } 44 45 if (!child->isSVGInline() && !child->isSVGInlineText()) 46 return false; 47 48 return RenderInline::isChildAllowed(child, style); 49 } 50 51 RenderSVGInline::RenderSVGInline(Element* element) 52 : RenderInline(element) 53 { 54 setAlwaysCreateLineBoxes(); 55 } 56 57 InlineFlowBox* RenderSVGInline::createInlineFlowBox() 58 { 59 InlineFlowBox* box = new SVGInlineFlowBox(*this); 60 box->setHasVirtualLogicalHeight(); 61 return box; 62 } 63 64 FloatRect RenderSVGInline::objectBoundingBox() const 65 { 66 if (const RenderObject* object = RenderSVGText::locateRenderSVGTextAncestor(this)) 67 return object->objectBoundingBox(); 68 69 return FloatRect(); 70 } 71 72 FloatRect RenderSVGInline::strokeBoundingBox() const 73 { 74 if (const RenderObject* object = RenderSVGText::locateRenderSVGTextAncestor(this)) 75 return object->strokeBoundingBox(); 76 77 return FloatRect(); 78 } 79 80 FloatRect RenderSVGInline::paintInvalidationRectInLocalCoordinates() const 81 { 82 if (const RenderObject* object = RenderSVGText::locateRenderSVGTextAncestor(this)) 83 return object->paintInvalidationRectInLocalCoordinates(); 84 85 return FloatRect(); 86 } 87 88 LayoutRect RenderSVGInline::clippedOverflowRectForPaintInvalidation(const RenderLayerModelObject* paintInvalidationContainer, const PaintInvalidationState* paintInvalidationState) const 89 { 90 return SVGRenderSupport::clippedOverflowRectForPaintInvalidation(this, paintInvalidationContainer, paintInvalidationState); 91 } 92 93 void RenderSVGInline::computeFloatRectForPaintInvalidation(const RenderLayerModelObject* paintInvalidationContainer, FloatRect& paintInvalidationRect, const PaintInvalidationState* paintInvalidationState) const 94 { 95 SVGRenderSupport::computeFloatRectForPaintInvalidation(this, paintInvalidationContainer, paintInvalidationRect, paintInvalidationState); 96 } 97 98 void RenderSVGInline::mapLocalToContainer(const RenderLayerModelObject* paintInvalidationContainer, TransformState& transformState, MapCoordinatesFlags, bool* wasFixed, const PaintInvalidationState* paintInvalidationState) const 99 { 100 SVGRenderSupport::mapLocalToContainer(this, paintInvalidationContainer, transformState, wasFixed, paintInvalidationState); 101 } 102 103 const RenderObject* RenderSVGInline::pushMappingToContainer(const RenderLayerModelObject* ancestorToStopAt, RenderGeometryMap& geometryMap) const 104 { 105 return SVGRenderSupport::pushMappingToContainer(this, ancestorToStopAt, geometryMap); 106 } 107 108 void RenderSVGInline::absoluteQuads(Vector<FloatQuad>& quads, bool* wasFixed) const 109 { 110 const RenderObject* object = RenderSVGText::locateRenderSVGTextAncestor(this); 111 if (!object) 112 return; 113 114 FloatRect textBoundingBox = object->strokeBoundingBox(); 115 for (InlineFlowBox* box = firstLineBox(); box; box = box->nextLineBox()) 116 quads.append(localToAbsoluteQuad(FloatRect(textBoundingBox.x() + box->x(), textBoundingBox.y() + box->y(), box->logicalWidth(), box->logicalHeight()), false, wasFixed)); 117 } 118 119 void RenderSVGInline::willBeDestroyed() 120 { 121 SVGResourcesCache::clientDestroyed(this); 122 RenderInline::willBeDestroyed(); 123 } 124 125 void RenderSVGInline::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle) 126 { 127 if (diff.needsFullLayout()) 128 setNeedsBoundariesUpdate(); 129 130 RenderInline::styleDidChange(diff, oldStyle); 131 SVGResourcesCache::clientStyleChanged(this, diff, style()); 132 } 133 134 void RenderSVGInline::addChild(RenderObject* child, RenderObject* beforeChild) 135 { 136 RenderInline::addChild(child, beforeChild); 137 SVGResourcesCache::clientWasAddedToTree(child, child->style()); 138 139 if (RenderSVGText* textRenderer = RenderSVGText::locateRenderSVGTextAncestor(this)) 140 textRenderer->subtreeChildWasAdded(child); 141 } 142 143 void RenderSVGInline::removeChild(RenderObject* child) 144 { 145 SVGResourcesCache::clientWillBeRemovedFromTree(child); 146 147 RenderSVGText* textRenderer = RenderSVGText::locateRenderSVGTextAncestor(this); 148 if (!textRenderer) { 149 RenderInline::removeChild(child); 150 return; 151 } 152 Vector<SVGTextLayoutAttributes*, 2> affectedAttributes; 153 textRenderer->subtreeChildWillBeRemoved(child, affectedAttributes); 154 RenderInline::removeChild(child); 155 textRenderer->subtreeChildWasRemoved(affectedAttributes); 156 } 157 158 } 159
