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
|
/*
* Copyright (C) 2007, 2010 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "CSSFontFaceSrcValue.h"
#include "CachedFont.h"
#include "CachedResourceLoader.h"
#include "CachedResourceRequest.h"
#include "CachedResourceRequestInitiators.h"
#include "Document.h"
#include "FontCustomPlatformData.h"
#include "Node.h"
#include "SVGFontFaceElement.h"
#include "StyleSheetContents.h"
#include <wtf/text/StringBuilder.h>
namespace WebCore {
#if ENABLE(SVG_FONTS)
bool CSSFontFaceSrcValue::isSVGFontFaceSrc() const
{
return equalLettersIgnoringASCIICase(m_format, "svg");
}
bool CSSFontFaceSrcValue::isSVGFontTarget() const
{
return isSVGFontFaceSrc() || svgFontFaceElement();
}
#endif
bool CSSFontFaceSrcValue::isSupportedFormat() const
{
// Normally we would just check the format, but in order to avoid conflicts with the old WinIE style of font-face,
// we will also check to see if the URL ends with .eot. If so, we'll assume that we shouldn't load it.
if (m_format.isEmpty()) {
// Check for .eot.
if (!m_resource.startsWith("data:", false) && m_resource.endsWith(".eot", false))
return false;
return true;
}
return FontCustomPlatformData::supportsFormat(m_format)
#if ENABLE(SVG_FONTS)
|| isSVGFontFaceSrc()
#endif
;
}
String CSSFontFaceSrcValue::customCSSText() const
{
StringBuilder result;
if (isLocal())
result.appendLiteral("local(");
else
result.appendLiteral("url(");
result.append(m_resource);
result.append(')');
if (!m_format.isEmpty()) {
result.appendLiteral(" format(");
result.append(m_format);
result.append(')');
}
return result.toString();
}
void CSSFontFaceSrcValue::addSubresourceStyleURLs(ListHashSet<URL>& urls, const StyleSheetContents* styleSheet) const
{
if (!isLocal())
addSubresourceURL(urls, styleSheet->completeURL(m_resource));
}
bool CSSFontFaceSrcValue::traverseSubresources(const std::function<bool (const CachedResource&)>& handler) const
{
if (!m_cachedFont)
return false;
return handler(*m_cachedFont);
}
CachedFont* CSSFontFaceSrcValue::cachedFont(Document* document, bool isSVG, bool isInitiatingElementInUserAgentShadowTree)
{
if (m_cachedFont)
return m_cachedFont.get();
ResourceLoaderOptions options = CachedResourceLoader::defaultCachedResourceOptions();
options.setContentSecurityPolicyImposition(isInitiatingElementInUserAgentShadowTree ? ContentSecurityPolicyImposition::SkipPolicyCheck : ContentSecurityPolicyImposition::DoPolicyCheck);
CachedResourceRequest request(ResourceRequest(document->completeURL(m_resource)), options);
request.setInitiator(cachedResourceRequestInitiators().css);
m_cachedFont = document->cachedResourceLoader().requestFont(request, isSVG);
return m_cachedFont.get();
}
bool CSSFontFaceSrcValue::equals(const CSSFontFaceSrcValue& other) const
{
return m_isLocal == other.m_isLocal && m_format == other.m_format && m_resource == other.m_resource;
}
}
|
