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
|
/**
* (C) 1999-2003 Lars Knoll (knoll@kde.org)
* Copyright (C) 2004, 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 "StyleSheetList.h"
#include "CSSStyleSheet.h"
#include "Document.h"
#include "HTMLNames.h"
#include "HTMLStyleElement.h"
#include "ShadowRoot.h"
#include "StyleScope.h"
#include <wtf/text/WTFString.h>
namespace WebCore {
using namespace HTMLNames;
StyleSheetList::StyleSheetList(Document& document)
: m_document(document)
{
}
StyleSheetList::StyleSheetList(ShadowRoot& shadowRoot)
: m_shadowRoot(&shadowRoot)
{
}
StyleSheetList::~StyleSheetList() = default;
inline const Vector<RefPtr<StyleSheet>>& StyleSheetList::styleSheets() const
{
if (m_document)
return m_document->styleScope().styleSheetsForStyleSheetList();
if (m_shadowRoot)
return m_shadowRoot->styleScope().styleSheetsForStyleSheetList();
return m_detachedStyleSheets;
}
Node* StyleSheetList::ownerNode() const
{
if (m_document)
return m_document.get();
return m_shadowRoot;
}
void StyleSheetList::detach()
{
if (m_document) {
ASSERT(!m_shadowRoot);
m_detachedStyleSheets = m_document->styleScope().styleSheetsForStyleSheetList();
m_document = nullptr;
} else if (m_shadowRoot) {
ASSERT(!m_document);
m_detachedStyleSheets = m_shadowRoot->styleScope().styleSheetsForStyleSheetList();
m_shadowRoot = nullptr;
} else
ASSERT_NOT_REACHED();
}
unsigned StyleSheetList::length() const
{
return styleSheets().size();
}
StyleSheet* StyleSheetList::item(unsigned index)
{
const Vector<RefPtr<StyleSheet>>& sheets = styleSheets();
return index < sheets.size() ? sheets[index].get() : 0;
}
CSSStyleSheet* StyleSheetList::namedItem(const AtomString& name) const
{
// Support the named getter on document for backwards compatibility.
if (!m_document)
return nullptr;
// IE also supports retrieving a stylesheet by name, using the name/id of the <style> tag
// (this is consistent with all the other collections)
// ### Bad implementation because returns a single element (are IDs always unique?)
// and doesn't look for name attribute.
// But unicity of stylesheet ids is good practice anyway ;)
if (RefPtr element = dynamicDowncast<HTMLStyleElement>(m_document->getElementById(name)))
return element->sheet();
return nullptr;
}
bool StyleSheetList::isSupportedPropertyName(const AtomString& name) const
{
return namedItem(name);
}
Vector<AtomString> StyleSheetList::supportedPropertyNames()
{
// FIXME: Should be implemented.
return Vector<AtomString>();
}
} // namespace WebCore
|
