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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 "core/svg/SVGFontFaceElement.h"
37 #include "platform/fonts/FontCache.h"
38 #include "platform/fonts/FontCustomPlatformData.h"
39 #include "wtf/text/StringBuilder.h"
44 bool CSSFontFaceSrcValue::isSVGFontFaceSrc() const
46 return equalIgnoringCase(m_format, "svg");
50 bool CSSFontFaceSrcValue::isSupportedFormat() const
52 // Normally we would just check the format, but in order to avoid conflicts with the old WinIE style of font-face,
53 // 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.
54 if (m_format.isEmpty()) {
56 if (!m_resource.startsWith("data:", false) && m_resource.endsWith(".eot", false))
61 if (FontCustomPlatformData::supportsFormat(m_format))
64 // We have removed SVG font support on non-gdi platforms. For details, see:
65 // https://groups.google.com/a/chromium.org/d/msg/blink-dev/pYbbUcYvlYY/LQvFvM8KZZEJ
67 if (RuntimeEnabledFeatures::svgFontsOnNonGDIPlatformsEnabled()
69 || !FontCache::useDirectWrite()
72 return isSVGFontFaceSrc();
77 String CSSFontFaceSrcValue::customCSSText() const
81 result.appendLiteral("local(");
83 result.appendLiteral("url(");
84 result.append(m_resource);
86 if (!m_format.isEmpty()) {
87 result.appendLiteral(" format(");
88 result.append(m_format);
91 return result.toString();
94 bool CSSFontFaceSrcValue::hasFailedOrCanceledSubresources() const
98 return m_fetched->loadFailedOrCanceled();
101 bool CSSFontFaceSrcValue::shouldSetCrossOriginAccessControl(const KURL& resource, SecurityOrigin* securityOrigin)
103 if (resource.isLocalFile() || resource.protocolIsData())
105 return !securityOrigin->canRequest(resource);
108 FontResource* CSSFontFaceSrcValue::fetch(Document* document)
111 FetchRequest request(ResourceRequest(document->completeURL(m_resource)), FetchInitiatorTypeNames::css);
112 SecurityOrigin* securityOrigin = document->securityOrigin();
113 if (shouldSetCrossOriginAccessControl(request.url(), securityOrigin)) {
114 request.setCrossOriginAccessControl(securityOrigin, DoNotAllowStoredCredentials);
116 request.mutableResourceRequest().setHTTPReferrer(m_referrer);
117 m_fetched = document->fetcher()->fetchFont(request);
119 // FIXME: CSSFontFaceSrcValue::fetch is invoked when @font-face rule
120 // is processed by StyleResolver / StyleEngine.
121 restoreCachedResourceIfNeeded(document);
123 return m_fetched.get();
126 void CSSFontFaceSrcValue::restoreCachedResourceIfNeeded(Document* document)
129 ASSERT(document && document->fetcher());
131 const String resourceURL = document->completeURL(m_resource);
132 if (document->fetcher()->cachedResource(KURL(ParsedURLString, resourceURL)))
135 FetchRequest request(ResourceRequest(resourceURL), FetchInitiatorTypeNames::css);
136 document->fetcher()->requestLoadStarted(m_fetched.get(), request, ResourceFetcher::ResourceLoadingFromCache);
139 bool CSSFontFaceSrcValue::equals(const CSSFontFaceSrcValue& other) const
141 return m_isLocal == other.m_isLocal && m_format == other.m_format && m_resource == other.m_resource;