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
|
/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* Copyright (C) 2003, 2010 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.
*
*/
#ifndef HTMLMetaElement_h
#define HTMLMetaElement_h
#include "core/html/HTMLElement.h"
namespace WebCore {
enum ViewportErrorCode {
UnrecognizedViewportArgumentKeyError,
UnrecognizedViewportArgumentValueError,
TruncatedViewportArgumentValueError,
MaximumScaleTooLargeError,
TargetDensityDpiUnsupported
};
class HTMLMetaElement FINAL : public HTMLElement {
public:
static PassRefPtr<HTMLMetaElement> create(Document&);
const AtomicString& content() const;
const AtomicString& httpEquiv() const;
const AtomicString& name() const;
private:
explicit HTMLMetaElement(Document&);
typedef void (HTMLMetaElement::*KeyValuePairCallback)(const String& key, const String& value, void* data);
void processViewportKeyValuePair(const String& key, const String& value, void* data);
void parseContentAttribute(const String& content, KeyValuePairCallback, void* data);
virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
virtual InsertionNotificationRequest insertedInto(ContainerNode*) OVERRIDE;
float parsePositiveNumber(const String& key, const String& value, bool* ok = 0);
Length parseViewportValueAsLength(const String& key, const String& value);
float parseViewportValueAsZoom(const String& key, const String& value);
float parseViewportValueAsUserZoom(const String& key, const String& value);
float parseViewportValueAsDPI(const String& key, const String& value);
void reportViewportWarning(ViewportErrorCode, const String& replacement1, const String& replacement2);
void process();
void processViewportContentAttribute(const String& content, ViewportDescription::Type origin);
};
DEFINE_NODE_TYPE_CASTS(HTMLMetaElement, hasTagName(HTMLNames::metaTag));
} // namespace WebCore
#endif
|
