Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(146)

Side by Side Diff: Source/core/rendering/RenderTextFragment.cpp

Issue 940373003: Rename RenderText to LayoutText (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Created 5 years, 10 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch
OLDNEW
(Empty)
1 /*
2 * (C) 1999 Lars Knoll (knoll@kde.org)
3 * (C) 2000 Dirk Mueller (mueller@kde.org)
4 * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. 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
23 #include "config.h"
24 #include "core/rendering/RenderTextFragment.h"
25
26 #include "core/dom/FirstLetterPseudoElement.h"
27 #include "core/dom/PseudoElement.h"
28 #include "core/dom/StyleChangeReason.h"
29 #include "core/dom/Text.h"
30 #include "core/layout/HitTestResult.h"
31 #include "core/layout/LayoutBlock.h"
32
33 namespace blink {
34
35 RenderTextFragment::RenderTextFragment(Node* node, StringImpl* str, int startOff set, int length)
36 : RenderText(node, str ? str->substring(startOffset, length) : PassRefPtr<St ringImpl>(nullptr))
37 , m_start(startOffset)
38 , m_end(length)
39 , m_isRemainingTextRenderer(false)
40 , m_contentString(str)
41 , m_firstLetterPseudoElement(nullptr)
42 {
43 }
44
45 RenderTextFragment::RenderTextFragment(Node* node, StringImpl* str)
46 : RenderText(node, str)
47 , m_start(0)
48 , m_end(str ? str->length() : 0)
49 , m_isRemainingTextRenderer(false)
50 , m_contentString(str)
51 , m_firstLetterPseudoElement(nullptr)
52 {
53 }
54
55 RenderTextFragment::~RenderTextFragment()
56 {
57 ASSERT(!m_firstLetterPseudoElement);
58 }
59
60 void RenderTextFragment::destroy()
61 {
62 if (m_isRemainingTextRenderer && m_firstLetterPseudoElement)
63 m_firstLetterPseudoElement->setRemainingTextRenderer(nullptr);
64 m_firstLetterPseudoElement = nullptr;
65 RenderText::destroy();
66 }
67
68 PassRefPtr<StringImpl> RenderTextFragment::completeText() const
69 {
70 Text* text = associatedTextNode();
71 return text ? text->dataImpl() : contentString();
72 }
73
74 void RenderTextFragment::setContentString(StringImpl* str)
75 {
76 m_contentString = str;
77 setText(str);
78 }
79
80 PassRefPtr<StringImpl> RenderTextFragment::originalText() const
81 {
82 RefPtr<StringImpl> result = completeText();
83 if (!result)
84 return nullptr;
85 return result->substring(start(), end());
86 }
87
88 void RenderTextFragment::setText(PassRefPtr<StringImpl> text, bool force)
89 {
90 RenderText::setText(text, force);
91
92 m_start = 0;
93 m_end = textLength();
94
95 // If we're the remaining text from a first letter then we have to tell the
96 // first letter pseudo element to reattach itself so it can re-calculate the
97 // correct first-letter settings.
98 if (LayoutObject* previous = previousSibling()) {
99 if (!previous->isPseudoElement() || !previous->node()->isFirstLetterPseu doElement())
100 return;
101
102 // Tell the first letter container node, and the first-letter node
103 // that their text content changed.
104 toFirstLetterPseudoElement(previous->node())->updateTextFragments();
105 }
106 }
107
108 void RenderTextFragment::setTextFragment(PassRefPtr<StringImpl> text, unsigned s tart, unsigned length)
109 {
110 RenderText::setText(text, false);
111
112 m_start = start;
113 m_end = length;
114 }
115
116 void RenderTextFragment::transformText()
117 {
118 // Note, we have to call RenderText::setText here because, if we use our
119 // version we will, potentially, screw up the first-letter settings where
120 // we only use portions of the string.
121 if (RefPtr<StringImpl> textToTransform = originalText())
122 RenderText::setText(textToTransform.release(), true);
123 }
124
125 UChar RenderTextFragment::previousCharacter() const
126 {
127 if (start()) {
128 StringImpl* original = completeText().get();
129 if (original && start() <= original->length())
130 return (*original)[start() - 1];
131 }
132
133 return RenderText::previousCharacter();
134 }
135
136 // If this is the renderer for a first-letter pseudoNode then we have to look
137 // at the node for the remaining text to find our content.
138 Text* RenderTextFragment::associatedTextNode() const
139 {
140 Node* node = this->firstLetterPseudoElement();
141 if (m_isRemainingTextRenderer || !node) {
142 // If we don't have a node, then we aren't part of a first-letter pseudo
143 // element, so use the actual node. Likewise, if we have a node, but
144 // we're the remainingTextRenderer for a pseudo element use the real
145 // text node.
146 node = this->node();
147 }
148
149 if (!node)
150 return nullptr;
151
152 if (node->isFirstLetterPseudoElement()) {
153 FirstLetterPseudoElement* pseudo = toFirstLetterPseudoElement(node);
154 LayoutObject* nextRenderer = FirstLetterPseudoElement::firstLetterTextRe nderer(*pseudo);
155 if (!nextRenderer)
156 return nullptr;
157 node = nextRenderer->node();
158 }
159 return (node && node->isTextNode()) ? toText(node) : nullptr;
160 }
161
162 } // namespace blink
OLDNEW
« no previous file with comments | « Source/core/rendering/RenderTextFragment.h ('k') | Source/modules/accessibility/AXInlineTextBox.cpp » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698