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1 /* | 1 /* |
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
3 * (C) 1999 Antti Koivisto (koivisto@kde.org) | 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) |
4 * (C) 2001 Dirk Mueller (mueller@kde.org) | 4 * (C) 2001 Dirk Mueller (mueller@kde.org) |
5 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All r
ights reserved. | 5 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All r
ights reserved. |
6 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.t
orchmobile.com/) | 6 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.t
orchmobile.com/) |
7 * Copyright (C) 2011 Google Inc. All rights reserved. | 7 * Copyright (C) 2011 Google Inc. All rights reserved. |
8 * | 8 * |
9 * This library is free software; you can redistribute it and/or | 9 * This library is free software; you can redistribute it and/or |
10 * modify it under the terms of the GNU Library General Public | 10 * modify it under the terms of the GNU Library General Public |
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22 * Boston, MA 02110-1301, USA. | 22 * Boston, MA 02110-1301, USA. |
23 * | 23 * |
24 */ | 24 */ |
25 | 25 |
26 #include "config.h" | 26 #include "config.h" |
27 #include "core/dom/RenderTreeBuilder.h" | 27 #include "core/dom/RenderTreeBuilder.h" |
28 | 28 |
29 #include "core/HTMLNames.h" | 29 #include "core/HTMLNames.h" |
30 #include "core/SVGNames.h" | 30 #include "core/SVGNames.h" |
31 #include "core/css/resolver/StyleResolver.h" | 31 #include "core/css/resolver/StyleResolver.h" |
| 32 #include "core/dom/FirstLetterPseudoElement.h" |
32 #include "core/dom/Fullscreen.h" | 33 #include "core/dom/Fullscreen.h" |
33 #include "core/dom/Node.h" | 34 #include "core/dom/Node.h" |
| 35 #include "core/dom/PseudoElement.h" |
34 #include "core/dom/Text.h" | 36 #include "core/dom/Text.h" |
35 #include "core/rendering/RenderFullScreen.h" | 37 #include "core/rendering/RenderFullScreen.h" |
36 #include "core/rendering/RenderObject.h" | 38 #include "core/rendering/RenderObject.h" |
37 #include "core/rendering/RenderText.h" | 39 #include "core/rendering/RenderText.h" |
38 #include "core/rendering/RenderView.h" | 40 #include "core/rendering/RenderView.h" |
39 #include "core/svg/SVGElement.h" | 41 #include "core/svg/SVGElement.h" |
40 #include "platform/RuntimeEnabledFeatures.h" | 42 #include "platform/RuntimeEnabledFeatures.h" |
41 | 43 |
42 namespace blink { | 44 namespace blink { |
43 | 45 |
| 46 RenderTreeBuilder::RenderTreeBuilder(Node* node, RenderStyle* style) |
| 47 : m_node(node) |
| 48 , m_renderingParent(nullptr) |
| 49 , m_style(style) |
| 50 { |
| 51 ASSERT(!node->renderer()); |
| 52 ASSERT(node->needsAttach()); |
| 53 ASSERT(node->document().inStyleRecalc()); |
| 54 |
| 55 // FIXME: We should be able to ASSERT(node->inActiveDocument()) but children
Changed is called |
| 56 // before ChildNodeInsertionNotifier in ContainerNode's methods and some imp
lementations |
| 57 // will trigger a layout inside childrenChanged. |
| 58 // Mainly HTMLTextAreaElement::childrenChanged calls HTMLTextFormControlElem
ent::setSelectionRange |
| 59 // which does an updateLayoutIgnorePendingStylesheets. |
| 60 |
| 61 Element* element = node->isElementNode() ? toElement(node) : 0; |
| 62 if (element && element->isFirstLetterPseudoElement()) { |
| 63 if (RenderObject* nextRenderer = FirstLetterPseudoElement::firstLetterTe
xtRenderer(*element)) |
| 64 m_renderingParent = nextRenderer->parent(); |
| 65 } else if (ContainerNode* containerNode = NodeRenderingTraversal::parent(nod
e, &m_parentDetails)) { |
| 66 m_renderingParent = containerNode->renderer(); |
| 67 } |
| 68 } |
| 69 |
44 RenderObject* RenderTreeBuilder::nextRenderer() const | 70 RenderObject* RenderTreeBuilder::nextRenderer() const |
45 { | 71 { |
46 ASSERT(m_renderingParent); | 72 ASSERT(m_renderingParent); |
47 | 73 |
48 Element* element = m_node->isElementNode() ? toElement(m_node) : 0; | 74 Element* element = m_node->isElementNode() ? toElement(m_node) : 0; |
49 | 75 |
50 if (element && element->isInTopLayer()) | 76 if (element && element->isInTopLayer()) |
51 return NodeRenderingTraversal::nextInTopLayer(element); | 77 return NodeRenderingTraversal::nextInTopLayer(element); |
52 | 78 |
| 79 if (element && element->isFirstLetterPseudoElement()) |
| 80 return FirstLetterPseudoElement::firstLetterTextRenderer(*element); |
| 81 |
53 // Avoid an O(N^2) walk over the children when reattaching all children of a
node. | 82 // Avoid an O(N^2) walk over the children when reattaching all children of a
node. |
54 if (m_renderingParent->needsAttach()) | 83 if (m_renderingParent->node() && m_renderingParent->node()->needsAttach()) |
55 return 0; | 84 return 0; |
56 | 85 |
57 return NodeRenderingTraversal::nextSiblingRenderer(m_node); | 86 return NodeRenderingTraversal::nextSiblingRenderer(m_node); |
58 } | 87 } |
59 | 88 |
60 RenderObject* RenderTreeBuilder::parentRenderer() const | 89 RenderObject* RenderTreeBuilder::parentRenderer() const |
61 { | 90 { |
62 ASSERT(m_renderingParent); | 91 ASSERT(m_renderingParent); |
63 | 92 |
64 Element* element = m_node->isElementNode() ? toElement(m_node) : 0; | 93 Element* element = m_node->isElementNode() ? toElement(m_node) : 0; |
65 | 94 |
66 if (element && m_renderingParent->renderer()) { | 95 if (element && m_renderingParent) { |
67 // FIXME: Guarding this by m_renderingParent->renderer() isn't quite rig
ht as the spec for | 96 // FIXME: Guarding this by m_renderingParent isn't quite right as the sp
ec for |
68 // top layer only talks about display: none ancestors so putting a <dial
og> inside an | 97 // top layer only talks about display: none ancestors so putting a <dial
og> inside an |
69 // <optgroup> seems like it should still work even though this check wil
l prevent it. | 98 // <optgroup> seems like it should still work even though this check wil
l prevent it. |
70 if (element->isInTopLayer()) | 99 if (element->isInTopLayer()) |
71 return m_node->document().renderView(); | 100 return m_node->document().renderView(); |
72 } | 101 } |
73 | 102 |
74 return m_renderingParent->renderer(); | 103 return m_renderingParent; |
75 } | 104 } |
76 | 105 |
77 bool RenderTreeBuilder::shouldCreateRenderer() const | 106 bool RenderTreeBuilder::shouldCreateRenderer() const |
78 { | 107 { |
79 if (!m_renderingParent) | 108 if (!m_renderingParent) |
80 return false; | 109 return false; |
81 if (m_node->isSVGElement()) { | 110 if (m_node->isSVGElement()) { |
82 // SVG elements only render when inside <svg>, or if the element is an <
svg> itself. | 111 // SVG elements only render when inside <svg>, or if the element is an <
svg> itself. |
83 if (!isSVGSVGElement(*m_node) && !m_renderingParent->isSVGElement()) | 112 if (!isSVGSVGElement(*m_node) && (!m_renderingParent->node() || !m_rende
ringParent->node()->isSVGElement())) |
84 return false; | 113 return false; |
85 if (!toSVGElement(m_node)->isValid()) | 114 if (!toSVGElement(m_node)->isValid()) |
86 return false; | 115 return false; |
87 } | 116 } |
| 117 |
88 RenderObject* parentRenderer = this->parentRenderer(); | 118 RenderObject* parentRenderer = this->parentRenderer(); |
89 if (!parentRenderer) | 119 if (!parentRenderer) |
90 return false; | 120 return false; |
91 if (!parentRenderer->canHaveChildren()) | 121 if (!parentRenderer->canHaveChildren()) |
92 return false; | 122 return false; |
93 return true; | 123 return true; |
94 } | 124 } |
95 | 125 |
96 RenderStyle& RenderTreeBuilder::style() const | 126 RenderStyle& RenderTreeBuilder::style() const |
97 { | 127 { |
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168 newRenderer->setFlowThreadState(parentRenderer->flowThreadState()); | 198 newRenderer->setFlowThreadState(parentRenderer->flowThreadState()); |
169 | 199 |
170 RenderObject* nextRenderer = this->nextRenderer(); | 200 RenderObject* nextRenderer = this->nextRenderer(); |
171 textNode->setRenderer(newRenderer); | 201 textNode->setRenderer(newRenderer); |
172 // Parent takes care of the animations, no need to call setAnimatableStyle. | 202 // Parent takes care of the animations, no need to call setAnimatableStyle. |
173 newRenderer->setStyle(m_style.release()); | 203 newRenderer->setStyle(m_style.release()); |
174 parentRenderer->addChild(newRenderer, nextRenderer); | 204 parentRenderer->addChild(newRenderer, nextRenderer); |
175 } | 205 } |
176 | 206 |
177 } | 207 } |
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