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27 #include "core/css/CSSFontFaceSrcValue.h"
29 #include "core/FetchInitiatorTypeNames.h"
30 #include "core/css/StyleSheetContents.h"
31 #include "core/dom/Document.h"
32 #include "core/dom/Node.h"
33 #include "core/fetch/FetchRequest.h"
34 #include "core/fetch/FontResource.h"
35 #include "core/fetch/ResourceFetcher.h"
36 #include "platform/fonts/FontCache.h"
37 #include "platform/fonts/FontCustomPlatformData.h"
38 #include "wtf/text/StringBuilder.h"
42 bool CSSFontFaceSrcValue::isSupportedFormat() const
44 // Normally we would just check the format, but in order to avoid conflicts with the old WinIE style of font-face,
45 // we will also check to see if the URL ends with .eot. If so, we'll go ahead and assume that we shouldn't load it.
46 if (m_format.isEmpty())
47 return m_resource.startsWith("data:", false) || !m_resource.endsWith(".eot", false);
49 return FontCustomPlatformData::supportsFormat(m_format);
52 String CSSFontFaceSrcValue::customCSSText() const
56 result.appendLiteral("local(");
58 result.appendLiteral("url(");
59 result.append(m_resource);
61 if (!m_format.isEmpty()) {
62 result.appendLiteral(" format(");
63 result.append(m_format);
66 return result.toString();
69 bool CSSFontFaceSrcValue::hasFailedOrCanceledSubresources() const
71 return m_fetched && m_fetched->loadFailedOrCanceled();
74 bool CSSFontFaceSrcValue::shouldSetCrossOriginAccessControl(const KURL& resource, SecurityOrigin* securityOrigin)
76 if (resource.isLocalFile() || resource.protocolIsData())
78 return !securityOrigin->canRequest(resource);
81 FontResource* CSSFontFaceSrcValue::fetch(Document* document)
84 FetchRequest request(ResourceRequest(document->completeURL(m_resource)), FetchInitiatorTypeNames::css);
85 SecurityOrigin* securityOrigin = document->securityOrigin();
86 if (shouldSetCrossOriginAccessControl(request.url(), securityOrigin)) {
87 request.setCrossOriginAccessControl(securityOrigin, DoNotAllowStoredCredentials);
89 request.mutableResourceRequest().setHTTPReferrer(m_referrer);
90 m_fetched = document->fetcher()->fetchFont(request);
92 // FIXME: CSSFontFaceSrcValue::fetch is invoked when @font-face rule
93 // is processed by StyleResolver / StyleEngine.
94 restoreCachedResourceIfNeeded(document);
96 return m_fetched.get();
99 void CSSFontFaceSrcValue::restoreCachedResourceIfNeeded(Document* document)
102 ASSERT(document && document->fetcher());
104 const String resourceURL = document->completeURL(m_resource);
105 if (document->fetcher()->cachedResource(KURL(ParsedURLString, resourceURL)))
108 FetchRequest request(ResourceRequest(resourceURL), FetchInitiatorTypeNames::css);
109 document->fetcher()->maybeNotifyInsecureContent(m_fetched.get());
110 document->fetcher()->requestLoadStarted(m_fetched.get(), request, ResourceFetcher::ResourceLoadingFromCache);
113 bool CSSFontFaceSrcValue::equals(const CSSFontFaceSrcValue& other) const
115 return m_isLocal == other.m_isLocal && m_format == other.m_format && m_resource == other.m_resource;