1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
/*
* (C) 1999-2003 Lars Knoll (knoll@kde.org)
* (C) 2002-2003 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2002, 2005, 2006, 2007 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "CSSRule.h"
#include "CSSCharsetRule.h"
#include "CSSFontFaceRule.h"
#include "CSSImportRule.h"
#include "CSSMediaRule.h"
#include "CSSPageRule.h"
#include "CSSStyleRule.h"
#include "CSSStyleSheet.h"
#include "CSSUnknownRule.h"
#include "WebKitCSSKeyframeRule.h"
#include "WebKitCSSKeyframesRule.h"
#include "WebKitCSSRegionRule.h"
#include "NotImplemented.h"
#include "StyleRule.h"
#include "StyleSheetContents.h"
namespace WebCore {
struct SameSizeAsCSSRule : public RefCounted<SameSizeAsCSSRule> {
#if USE(JSC)
char bitfields;
#else
unsigned bitfields;
#endif
void* pointerUnion;
};
COMPILE_ASSERT(sizeof(CSSRule) == sizeof(SameSizeAsCSSRule), CSSRule_should_stay_small);
#if ENABLE(CSS_REGIONS)
COMPILE_ASSERT(StyleRuleBase::Region == static_cast<StyleRuleBase::Type>(CSSRule::WEBKIT_REGION_RULE), enums_should_match);
#endif
void CSSRule::setCssText(const String& /*cssText*/, ExceptionCode& /*ec*/)
{
notImplemented();
}
String CSSRule::cssText() const
{
switch (type()) {
case UNKNOWN_RULE:
return String();
case STYLE_RULE:
return static_cast<const CSSStyleRule*>(this)->cssText();
case PAGE_RULE:
return static_cast<const CSSPageRule*>(this)->cssText();
case CHARSET_RULE:
return static_cast<const CSSCharsetRule*>(this)->cssText();
case IMPORT_RULE:
return static_cast<const CSSImportRule*>(this)->cssText();
case MEDIA_RULE:
return static_cast<const CSSMediaRule*>(this)->cssText();
case FONT_FACE_RULE:
return static_cast<const CSSFontFaceRule*>(this)->cssText();
case WEBKIT_KEYFRAMES_RULE:
return static_cast<const WebKitCSSKeyframesRule*>(this)->cssText();
case WEBKIT_KEYFRAME_RULE:
return static_cast<const WebKitCSSKeyframeRule*>(this)->cssText();
#if ENABLE(CSS_REGIONS)
case WEBKIT_REGION_RULE:
return static_cast<const WebKitCSSRegionRule*>(this)->cssText();
#endif
}
ASSERT_NOT_REACHED();
return String();
}
void CSSRule::destroy()
{
switch (type()) {
case UNKNOWN_RULE:
delete static_cast<CSSUnknownRule*>(this);
return;
case STYLE_RULE:
delete static_cast<CSSStyleRule*>(this);
return;
case PAGE_RULE:
delete static_cast<CSSPageRule*>(this);
return;
case CHARSET_RULE:
delete static_cast<CSSCharsetRule*>(this);
return;
case IMPORT_RULE:
delete static_cast<CSSImportRule*>(this);
return;
case MEDIA_RULE:
delete static_cast<CSSMediaRule*>(this);
return;
case FONT_FACE_RULE:
delete static_cast<CSSFontFaceRule*>(this);
return;
case WEBKIT_KEYFRAMES_RULE:
delete static_cast<WebKitCSSKeyframesRule*>(this);
return;
case WEBKIT_KEYFRAME_RULE:
delete static_cast<WebKitCSSKeyframeRule*>(this);
return;
#if ENABLE(CSS_REGIONS)
case WEBKIT_REGION_RULE:
delete static_cast<WebKitCSSRegionRule*>(this);
return;
#endif
}
ASSERT_NOT_REACHED();
}
void CSSRule::reattach(StyleRuleBase* rule)
{
switch (type()) {
case UNKNOWN_RULE:
return;
case STYLE_RULE:
static_cast<CSSStyleRule*>(this)->reattach(static_cast<StyleRule*>(rule));
return;
case PAGE_RULE:
static_cast<CSSPageRule*>(this)->reattach(static_cast<StyleRulePage*>(rule));
return;
case CHARSET_RULE:
ASSERT(!rule);
return;
case IMPORT_RULE:
// FIXME: Implement when enabling caching for stylesheets with import rules.
ASSERT_NOT_REACHED();
return;
case MEDIA_RULE:
static_cast<CSSMediaRule*>(this)->reattach(static_cast<StyleRuleMedia*>(rule));
return;
case FONT_FACE_RULE:
static_cast<CSSFontFaceRule*>(this)->reattach(static_cast<StyleRuleFontFace*>(rule));
return;
case WEBKIT_KEYFRAMES_RULE:
static_cast<WebKitCSSKeyframesRule*>(this)->reattach(static_cast<StyleRuleKeyframes*>(rule));
return;
case WEBKIT_KEYFRAME_RULE:
// No need to reattach, the underlying data is shareable on mutation.
ASSERT_NOT_REACHED();
return;
#if ENABLE(CSS_REGIONS)
case WEBKIT_REGION_RULE:
static_cast<WebKitCSSRegionRule*>(this)->reattach(static_cast<StyleRuleRegion*>(rule));
return;
#endif
}
ASSERT_NOT_REACHED();
}
void CSSRule::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
{
switch (type()) {
case UNKNOWN_RULE:
static_cast<const CSSUnknownRule*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
return;
case STYLE_RULE:
static_cast<const CSSStyleRule*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
return;
case PAGE_RULE:
static_cast<const CSSPageRule*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
return;
case CHARSET_RULE:
static_cast<const CSSCharsetRule*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
return;
case IMPORT_RULE:
static_cast<const CSSImportRule*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
return;
case MEDIA_RULE:
static_cast<const CSSMediaRule*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
return;
case FONT_FACE_RULE:
static_cast<const CSSFontFaceRule*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
return;
case WEBKIT_KEYFRAMES_RULE:
static_cast<const WebKitCSSKeyframesRule*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
return;
case WEBKIT_KEYFRAME_RULE:
static_cast<const WebKitCSSKeyframeRule*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
return;
#if ENABLE(CSS_REGIONS)
case WEBKIT_REGION_RULE:
static_cast<const WebKitCSSRegionRule*>(this)->reportDescendantMemoryUsage(memoryObjectInfo);
return;
#endif
}
ASSERT_NOT_REACHED();
return;
}
const CSSParserContext& CSSRule::parserContext() const
{
CSSStyleSheet* styleSheet = parentStyleSheet();
return styleSheet ? styleSheet->contents()->parserContext() : strictCSSParserContext();
}
void CSSRule::reportBaseClassMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
{
MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::CSS);
if (m_parentIsRule)
info.addMember(m_parentRule);
else
info.addMember(m_parentStyleSheet);
}
} // namespace WebCore
|
