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1 /* | 1 /* |
2 Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de) | 2 Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de) |
3 Copyright (C) 2001 Dirk Mueller (mueller@kde.org) | 3 Copyright (C) 2001 Dirk Mueller (mueller@kde.org) |
4 Copyright (C) 2002 Waldo Bastian (bastian@kde.org) | 4 Copyright (C) 2002 Waldo Bastian (bastian@kde.org) |
5 Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com) | 5 Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com) |
6 Copyright (C) 2004, 2005, 2006 Apple Computer, Inc. | 6 Copyright (C) 2004, 2005, 2006 Apple Computer, Inc. |
7 | 7 |
8 This library is free software; you can redistribute it and/or | 8 This library is free software; you can redistribute it and/or |
9 modify it under the terms of the GNU Library General Public | 9 modify it under the terms of the GNU Library General Public |
10 License as published by the Free Software Foundation; either | 10 License as published by the Free Software Foundation; either |
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70 ASSERT(c->resourceClientType() == StyleSheetResourceClient::expectedType()); | 70 ASSERT(c->resourceClientType() == StyleSheetResourceClient::expectedType()); |
71 // Resource::didAddClient() must be before setCSSStyleSheet(), | 71 // Resource::didAddClient() must be before setCSSStyleSheet(), |
72 // because setCSSStyleSheet() may cause scripts to be executed, which could
destroy 'c' if it is an instance of HTMLLinkElement. | 72 // because setCSSStyleSheet() may cause scripts to be executed, which could
destroy 'c' if it is an instance of HTMLLinkElement. |
73 // see the comment of HTMLLinkElement::setCSSStyleSheet. | 73 // see the comment of HTMLLinkElement::setCSSStyleSheet. |
74 Resource::didAddClient(c); | 74 Resource::didAddClient(c); |
75 | 75 |
76 if (!isLoading()) | 76 if (!isLoading()) |
77 static_cast<StyleSheetResourceClient*>(c)->setCSSStyleSheet(m_resourceRe
quest.url(), m_response.url(), encoding(), this); | 77 static_cast<StyleSheetResourceClient*>(c)->setCSSStyleSheet(m_resourceRe
quest.url(), m_response.url(), encoding(), this); |
78 } | 78 } |
79 | 79 |
80 const String CSSStyleSheetResource::sheetText(bool enforceMIMEType, bool* hasVal
idMIMEType) const | 80 const String CSSStyleSheetResource::sheetText(bool* hasValidMIMEType) const |
81 { | 81 { |
82 ASSERT(!isPurgeable()); | 82 ASSERT(!isPurgeable()); |
83 | 83 |
84 if (!m_data || m_data->isEmpty() || !canUseSheet(enforceMIMEType, hasValidMI
METype)) | 84 if (!m_data || m_data->isEmpty() || !canUseSheet(hasValidMIMEType)) |
85 return String(); | 85 return String(); |
86 | 86 |
87 if (!m_decodedSheetText.isNull()) | 87 if (!m_decodedSheetText.isNull()) |
88 return m_decodedSheetText; | 88 return m_decodedSheetText; |
89 | 89 |
90 // Don't cache the decoded text, regenerating is cheap and it can use quite
a bit of memory | 90 // Don't cache the decoded text, regenerating is cheap and it can use quite
a bit of memory |
91 return decodedText(); | 91 return decodedText(); |
92 } | 92 } |
93 | 93 |
94 const AtomicString CSSStyleSheetResource::mimeType() const | 94 const AtomicString CSSStyleSheetResource::mimeType() const |
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118 { | 118 { |
119 if (!m_parsedStyleSheetCache) | 119 if (!m_parsedStyleSheetCache) |
120 return; | 120 return; |
121 | 121 |
122 m_parsedStyleSheetCache->removedFromMemoryCache(); | 122 m_parsedStyleSheetCache->removedFromMemoryCache(); |
123 m_parsedStyleSheetCache.clear(); | 123 m_parsedStyleSheetCache.clear(); |
124 | 124 |
125 setDecodedSize(0); | 125 setDecodedSize(0); |
126 } | 126 } |
127 | 127 |
128 bool CSSStyleSheetResource::canUseSheet(bool enforceMIMEType, bool* hasValidMIME
Type) const | 128 bool CSSStyleSheetResource::canUseSheet(bool* hasValidMIMEType) const |
129 { | 129 { |
130 if (errorOccurred()) | 130 if (errorOccurred()) |
131 return false; | 131 return false; |
132 | 132 |
133 if (!enforceMIMEType && !hasValidMIMEType) | |
134 return true; | |
135 | |
136 // This check exactly matches Firefox. Note that we grab the Content-Type | 133 // This check exactly matches Firefox. Note that we grab the Content-Type |
137 // header directly because we want to see what the value is BEFORE content | 134 // header directly because we want to see what the value is BEFORE content |
138 // sniffing. Firefox does this by setting a "type hint" on the channel. | 135 // sniffing. Firefox does this by setting a "type hint" on the channel. |
139 // This implementation should be observationally equivalent. | 136 // This implementation should be observationally equivalent. |
140 // | 137 // |
141 // This code defaults to allowing the stylesheet for non-HTTP protocols so | 138 // This code defaults to allowing the stylesheet for non-HTTP protocols so |
142 // folks can use standards mode for local HTML documents. | 139 // folks can use standards mode for local HTML documents. |
143 bool typeOK = mimeType().isEmpty() || equalIgnoringCase(mimeType(), "text/cs
s") || equalIgnoringCase(mimeType(), "application/x-unknown-content-type"); | 140 bool typeOK = mimeType().isEmpty() || equalIgnoringCase(mimeType(), "text/cs
s") || equalIgnoringCase(mimeType(), "application/x-unknown-content-type"); |
144 if (hasValidMIMEType) | 141 if (hasValidMIMEType) |
145 *hasValidMIMEType = typeOK; | 142 *hasValidMIMEType = typeOK; |
146 if (!enforceMIMEType) | |
147 return true; | |
148 return typeOK; | 143 return typeOK; |
149 } | 144 } |
150 | 145 |
151 PassRefPtrWillBeRawPtr<StyleSheetContents> CSSStyleSheetResource::restoreParsedS
tyleSheet(const CSSParserContext& context) | 146 PassRefPtrWillBeRawPtr<StyleSheetContents> CSSStyleSheetResource::restoreParsedS
tyleSheet(const CSSParserContext& context) |
152 { | 147 { |
153 if (!m_parsedStyleSheetCache) | 148 if (!m_parsedStyleSheetCache) |
154 return nullptr; | 149 return nullptr; |
155 if (m_parsedStyleSheetCache->hasFailedOrCanceledSubresources()) { | 150 if (m_parsedStyleSheetCache->hasFailedOrCanceledSubresources()) { |
156 m_parsedStyleSheetCache->removedFromMemoryCache(); | 151 m_parsedStyleSheetCache->removedFromMemoryCache(); |
157 m_parsedStyleSheetCache.clear(); | 152 m_parsedStyleSheetCache.clear(); |
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176 | 171 |
177 if (m_parsedStyleSheetCache) | 172 if (m_parsedStyleSheetCache) |
178 m_parsedStyleSheetCache->removedFromMemoryCache(); | 173 m_parsedStyleSheetCache->removedFromMemoryCache(); |
179 m_parsedStyleSheetCache = sheet; | 174 m_parsedStyleSheetCache = sheet; |
180 m_parsedStyleSheetCache->addedToMemoryCache(); | 175 m_parsedStyleSheetCache->addedToMemoryCache(); |
181 | 176 |
182 setDecodedSize(m_parsedStyleSheetCache->estimatedSizeInBytes()); | 177 setDecodedSize(m_parsedStyleSheetCache->estimatedSizeInBytes()); |
183 } | 178 } |
184 | 179 |
185 } | 180 } |
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