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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" | |
33 #include "core/dom/Fullscreen.h" | 32 #include "core/dom/Fullscreen.h" |
34 #include "core/dom/Node.h" | 33 #include "core/dom/Node.h" |
35 #include "core/dom/PseudoElement.h" | |
36 #include "core/dom/Text.h" | 34 #include "core/dom/Text.h" |
37 #include "core/rendering/RenderFullScreen.h" | 35 #include "core/rendering/RenderFullScreen.h" |
38 #include "core/rendering/RenderObject.h" | 36 #include "core/rendering/RenderObject.h" |
39 #include "core/rendering/RenderText.h" | 37 #include "core/rendering/RenderText.h" |
40 #include "core/rendering/RenderView.h" | 38 #include "core/rendering/RenderView.h" |
41 #include "core/svg/SVGElement.h" | 39 #include "core/svg/SVGElement.h" |
42 #include "platform/RuntimeEnabledFeatures.h" | 40 #include "platform/RuntimeEnabledFeatures.h" |
43 | 41 |
44 namespace blink { | 42 namespace blink { |
45 | 43 |
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 | |
70 RenderObject* RenderTreeBuilder::nextRenderer() const | 44 RenderObject* RenderTreeBuilder::nextRenderer() const |
71 { | 45 { |
72 ASSERT(m_renderingParent); | 46 ASSERT(m_renderingParent); |
73 | 47 |
74 Element* element = m_node->isElementNode() ? toElement(m_node) : 0; | 48 Element* element = m_node->isElementNode() ? toElement(m_node) : 0; |
75 | 49 |
76 if (element && element->isInTopLayer()) | 50 if (element && element->isInTopLayer()) |
77 return NodeRenderingTraversal::nextInTopLayer(element); | 51 return NodeRenderingTraversal::nextInTopLayer(element); |
78 | 52 |
79 if (element && element->isFirstLetterPseudoElement()) | |
80 return FirstLetterPseudoElement::firstLetterTextRenderer(*element); | |
81 | |
82 // Avoid an O(N^2) walk over the children when reattaching all children of a
node. | 53 // Avoid an O(N^2) walk over the children when reattaching all children of a
node. |
83 if (m_renderingParent->node() && m_renderingParent->node()->needsAttach()) | 54 if (m_renderingParent->needsAttach()) |
84 return 0; | 55 return 0; |
85 | 56 |
86 return NodeRenderingTraversal::nextSiblingRenderer(m_node); | 57 return NodeRenderingTraversal::nextSiblingRenderer(m_node); |
87 } | 58 } |
88 | 59 |
89 RenderObject* RenderTreeBuilder::parentRenderer() const | 60 RenderObject* RenderTreeBuilder::parentRenderer() const |
90 { | 61 { |
91 ASSERT(m_renderingParent); | 62 ASSERT(m_renderingParent); |
92 | 63 |
93 Element* element = m_node->isElementNode() ? toElement(m_node) : 0; | 64 Element* element = m_node->isElementNode() ? toElement(m_node) : 0; |
94 | 65 |
95 if (element && m_renderingParent) { | 66 if (element && m_renderingParent->renderer()) { |
96 // FIXME: Guarding this by m_renderingParent isn't quite right as the sp
ec for | 67 // FIXME: Guarding this by m_renderingParent->renderer() isn't quite rig
ht as the spec for |
97 // top layer only talks about display: none ancestors so putting a <dial
og> inside an | 68 // top layer only talks about display: none ancestors so putting a <dial
og> inside an |
98 // <optgroup> seems like it should still work even though this check wil
l prevent it. | 69 // <optgroup> seems like it should still work even though this check wil
l prevent it. |
99 if (element->isInTopLayer()) | 70 if (element->isInTopLayer()) |
100 return m_node->document().renderView(); | 71 return m_node->document().renderView(); |
101 } | 72 } |
102 | 73 |
103 return m_renderingParent; | 74 return m_renderingParent->renderer(); |
104 } | 75 } |
105 | 76 |
106 bool RenderTreeBuilder::shouldCreateRenderer() const | 77 bool RenderTreeBuilder::shouldCreateRenderer() const |
107 { | 78 { |
108 if (!m_renderingParent) | 79 if (!m_renderingParent) |
109 return false; | 80 return false; |
110 if (m_node->isSVGElement()) { | 81 if (m_node->isSVGElement()) { |
111 // SVG elements only render when inside <svg>, or if the element is an <
svg> itself. | 82 // SVG elements only render when inside <svg>, or if the element is an <
svg> itself. |
112 if (!isSVGSVGElement(*m_node) && (!m_renderingParent->node() || !m_rende
ringParent->node()->isSVGElement())) | 83 if (!isSVGSVGElement(*m_node) && !m_renderingParent->isSVGElement()) |
113 return false; | 84 return false; |
114 if (!toSVGElement(m_node)->isValid()) | 85 if (!toSVGElement(m_node)->isValid()) |
115 return false; | 86 return false; |
116 } | 87 } |
117 | |
118 RenderObject* parentRenderer = this->parentRenderer(); | 88 RenderObject* parentRenderer = this->parentRenderer(); |
119 if (!parentRenderer) | 89 if (!parentRenderer) |
120 return false; | 90 return false; |
121 if (!parentRenderer->canHaveChildren()) | 91 if (!parentRenderer->canHaveChildren()) |
122 return false; | 92 return false; |
123 return true; | 93 return true; |
124 } | 94 } |
125 | 95 |
126 RenderStyle& RenderTreeBuilder::style() const | 96 RenderStyle& RenderTreeBuilder::style() const |
127 { | 97 { |
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198 newRenderer->setFlowThreadState(parentRenderer->flowThreadState()); | 168 newRenderer->setFlowThreadState(parentRenderer->flowThreadState()); |
199 | 169 |
200 RenderObject* nextRenderer = this->nextRenderer(); | 170 RenderObject* nextRenderer = this->nextRenderer(); |
201 textNode->setRenderer(newRenderer); | 171 textNode->setRenderer(newRenderer); |
202 // Parent takes care of the animations, no need to call setAnimatableStyle. | 172 // Parent takes care of the animations, no need to call setAnimatableStyle. |
203 newRenderer->setStyle(m_style.release()); | 173 newRenderer->setStyle(m_style.release()); |
204 parentRenderer->addChild(newRenderer, nextRenderer); | 174 parentRenderer->addChild(newRenderer, nextRenderer); |
205 } | 175 } |
206 | 176 |
207 } | 177 } |
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