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1 /* | 1 /* |
2 * (C) 1999 Lars Knoll (knoll@kde.org) | 2 * (C) 1999 Lars Knoll (knoll@kde.org) |
3 * (C) 2000 Dirk Mueller (mueller@kde.org) | 3 * (C) 2000 Dirk Mueller (mueller@kde.org) |
4 * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved. | 4 * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. 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 * |
11 * This library is distributed in the hope that it will be useful, | 11 * This library is distributed in the hope that it will be useful, |
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 * Library General Public License for more details. | 14 * Library General Public License for more details. |
15 * | 15 * |
16 * You should have received a copy of the GNU Library General Public License | 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 | 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, | 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
19 * Boston, MA 02110-1301, USA. | 19 * Boston, MA 02110-1301, USA. |
20 * | 20 * |
21 */ | 21 */ |
22 | 22 |
23 #include "config.h" | 23 #include "config.h" |
24 #include "core/rendering/RenderTextFragment.h" | 24 #include "core/rendering/RenderTextFragment.h" |
25 | 25 |
26 #include "core/dom/FirstLetterHelper.h" | |
27 #include "core/dom/PseudoElement.h" | |
28 #include "core/dom/StyleChangeReason.h" | |
26 #include "core/dom/Text.h" | 29 #include "core/dom/Text.h" |
27 #include "core/rendering/HitTestResult.h" | 30 #include "core/rendering/HitTestResult.h" |
28 #include "core/rendering/RenderBlock.h" | 31 #include "core/rendering/RenderBlock.h" |
29 | 32 |
30 namespace blink { | 33 namespace blink { |
31 | 34 |
32 RenderTextFragment::RenderTextFragment(Node* node, StringImpl* str, int startOff set, int length) | 35 RenderTextFragment::RenderTextFragment(Node* node, StringImpl* str, int startOff set, int length) |
33 : RenderText(node, str ? str->substring(startOffset, length) : PassRefPtr<St ringImpl>(nullptr)) | 36 : RenderText(node, str ? str->substring(startOffset, length) : PassRefPtr<St ringImpl>(nullptr)) |
34 , m_start(startOffset) | 37 , m_start(startOffset) |
35 , m_end(length) | 38 , m_end(length) |
36 , m_firstLetter(nullptr) | |
37 { | 39 { |
38 } | 40 } |
39 | 41 |
40 RenderTextFragment::RenderTextFragment(Node* node, StringImpl* str) | 42 RenderTextFragment::RenderTextFragment(Node* node, StringImpl* str) |
41 : RenderText(node, str) | 43 : RenderText(node, str) |
42 , m_start(0) | 44 , m_start(0) |
43 , m_end(str ? str->length() : 0) | 45 , m_end(str ? str->length() : 0) |
44 , m_contentString(str) | 46 , m_contentString(str) |
45 , m_firstLetter(nullptr) | |
46 { | 47 { |
47 } | 48 } |
48 | 49 |
49 RenderTextFragment::~RenderTextFragment() | 50 RenderTextFragment::~RenderTextFragment() |
50 { | 51 { |
51 } | 52 } |
52 | 53 |
53 void RenderTextFragment::trace(Visitor* visitor) | 54 PassRefPtr<StringImpl> RenderTextFragment::completeText() const |
54 { | 55 { |
55 visitor->trace(m_firstLetter); | 56 Text* text = associatedTextNode(); |
56 RenderText::trace(visitor); | 57 return text ? text->dataImpl() : contentString(); |
57 } | |
58 | |
59 RenderText* RenderTextFragment::firstRenderTextInFirstLetter() const | |
60 { | |
61 for (RenderObject* current = m_firstLetter; current; current = current->next InPreOrder(m_firstLetter)) { | |
62 if (current->isText()) | |
63 return toRenderText(current); | |
64 } | |
65 return 0; | |
66 } | 58 } |
67 | 59 |
68 PassRefPtr<StringImpl> RenderTextFragment::originalText() const | 60 PassRefPtr<StringImpl> RenderTextFragment::originalText() const |
69 { | 61 { |
70 Node* e = node(); | 62 RefPtr<StringImpl> result = completeText(); |
71 RefPtr<StringImpl> result = ((e && e->isTextNode()) ? toText(e)->dataImpl() : contentString()); | |
72 if (!result) | 63 if (!result) |
73 return nullptr; | 64 return nullptr; |
74 return result->substring(start(), end()); | 65 return result->substring(start(), end()); |
75 } | 66 } |
76 | 67 |
77 void RenderTextFragment::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle) | |
78 { | |
79 RenderText::styleDidChange(diff, oldStyle); | |
80 | |
81 if (RenderBlock* block = blockForAccompanyingFirstLetter()) { | |
82 block->style()->removeCachedPseudoStyle(FIRST_LETTER); | |
83 block->updateFirstLetter(); | |
84 } | |
85 } | |
86 | |
87 void RenderTextFragment::willBeDestroyed() | |
88 { | |
89 if (m_firstLetter) | |
90 m_firstLetter->destroy(); | |
91 RenderText::willBeDestroyed(); | |
92 } | |
93 | |
94 void RenderTextFragment::setText(PassRefPtr<StringImpl> text, bool force) | 68 void RenderTextFragment::setText(PassRefPtr<StringImpl> text, bool force) |
95 { | 69 { |
96 RenderText::setText(text, force); | 70 RenderText::setText(text, force); |
97 | 71 |
98 m_start = 0; | 72 m_start = 0; |
99 m_end = textLength(); | 73 m_end = textLength(); |
100 if (m_firstLetter) { | |
101 // FIXME: We should not modify the structure of the render tree during | |
102 // layout. crbug.com/370458 | |
103 DeprecatedDisableModifyRenderTreeStructureAsserts disabler; | |
104 | 74 |
105 ASSERT(!m_contentString); | 75 // If we're the remaining text from a first letter then we have to tell the |
106 m_firstLetter->destroy(); | 76 // first letter pseudo element to reattach itself so it can re-calculate the |
107 m_firstLetter = nullptr; | 77 // correct first-letter settings. |
108 if (Node* t = node()) { | 78 if (RenderObject* previous = previousSibling()) { |
109 ASSERT(!t->renderer()); | 79 if (!previous->isPseudoElement() || !previous->node()->isFirstLetterPseu doElement()) |
110 t->setRenderer(this); | 80 return; |
111 } | 81 |
82 // Tell the first letter container node, and the first-letter node | |
83 // that their style may have changed. | |
84 // e.g. fast/css/first-letter-detach.html | |
85 previous->node()->setNeedsStyleRecalc(LocalStyleChange, StyleChangeReaso nForTracing::create(StyleChangeReason::PseudoClass)); | |
86 previous->node()->parentElement()->setNeedsStyleRecalc(LocalStyleChange, StyleChangeReasonForTracing::create(StyleChangeReason::PseudoClass)); | |
87 | |
88 // FIXME:: Will this get cleaned up properly? OR am I leaking here? | |
89 previous->node()->detach(); | |
Julien - ping for review
2014/10/01 21:14:47
It's interesting that detach doesn't trigger the d
dsinclair
2014/10/04 02:01:34
Done. This should be cleaned up when we do the rec
| |
112 } | 90 } |
113 } | 91 } |
114 | 92 |
115 void RenderTextFragment::transformText() | 93 void RenderTextFragment::transformText() |
116 { | 94 { |
117 // Don't reset first-letter here because we are only transforming the trunca ted fragment. | |
118 if (RefPtr<StringImpl> textToTransform = originalText()) | 95 if (RefPtr<StringImpl> textToTransform = originalText()) |
119 RenderText::setText(textToTransform.release(), true); | 96 RenderText::setText(textToTransform.release(), true); |
120 } | 97 } |
121 | 98 |
122 UChar RenderTextFragment::previousCharacter() const | 99 UChar RenderTextFragment::previousCharacter() const |
123 { | 100 { |
124 if (start()) { | 101 if (start()) { |
125 Node* e = node(); | 102 StringImpl* original = completeText().get(); |
126 StringImpl* original = ((e && e->isTextNode()) ? toText(e)->dataImpl() : contentString()); | |
127 if (original && start() <= original->length()) | 103 if (original && start() <= original->length()) |
128 return (*original)[start() - 1]; | 104 return (*original)[start() - 1]; |
129 } | 105 } |
130 | 106 |
131 return RenderText::previousCharacter(); | 107 return RenderText::previousCharacter(); |
132 } | 108 } |
133 | 109 |
134 RenderBlock* RenderTextFragment::blockForAccompanyingFirstLetter() const | |
135 { | |
136 if (!m_firstLetter) | |
137 return 0; | |
138 for (RenderObject* block = m_firstLetter->parent(); block; block = block->pa rent()) { | |
139 if (block->style()->hasPseudoStyle(FIRST_LETTER) && block->canHaveChildr en() && block->isRenderBlock()) | |
140 return toRenderBlock(block); | |
141 } | |
142 return 0; | |
143 } | |
144 | |
145 void RenderTextFragment::updateHitTestResult(HitTestResult& result, const Layout Point& point) | 110 void RenderTextFragment::updateHitTestResult(HitTestResult& result, const Layout Point& point) |
146 { | 111 { |
147 if (result.innerNode()) | 112 if (result.innerNode()) |
148 return; | 113 return; |
149 | 114 |
150 RenderObject::updateHitTestResult(result, point); | 115 RenderObject::updateHitTestResult(result, point); |
151 if (m_firstLetter || !node()) | 116 if (!node()) |
152 return; | |
153 RenderObject* nodeRenderer = node()->renderer(); | |
154 if (!nodeRenderer || !nodeRenderer->isText() || !toRenderText(nodeRenderer)- >isTextFragment()) | |
155 return; | 117 return; |
156 | 118 |
157 if (isDescendantOf(toRenderTextFragment(nodeRenderer)->m_firstLetter)) | 119 // FIXME(dsinclair): First letter? |
158 result.setIsFirstLetter(true); | |
159 } | 120 } |
160 | 121 |
122 // If this is the renderer for a first-letter pseudoNode then we have to look | |
123 // at the node for the remaining text to find our content. | |
124 Text* RenderTextFragment::associatedTextNode() const | |
125 { | |
126 Node* node = this->node(); | |
127 if (!node) | |
128 return nullptr; | |
129 | |
130 if (node->isFirstLetterPseudoElement()) { | |
131 PseudoElement* pseudo = toPseudoElement(node); | |
132 RenderObject* nextRenderer = FirstLetterHelper::firstLetterTextRenderer( *pseudo); | |
133 if (!nextRenderer) | |
134 return nullptr; | |
135 node = nextRenderer->node(); | |
136 } | |
137 return (node && node->isTextNode()) ? toText(node) : nullptr; | |
138 } | |
139 | |
140 | |
161 } // namespace blink | 141 } // namespace blink |
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