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      1 /*
      2  * Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef CSSFontFaceSrcValue_h
     27 #define CSSFontFaceSrcValue_h
     28 
     29 #include "core/css/CSSValue.h"
     30 #include "core/fetch/ResourcePtr.h"
     31 #include "platform/weborigin/Referrer.h"
     32 #include "wtf/PassRefPtr.h"
     33 #include "wtf/text/WTFString.h"
     34 
     35 namespace blink {
     36 
     37 class FontResource;
     38 class Document;
     39 class SVGFontFaceElement;
     40 
     41 class CSSFontFaceSrcValue : public CSSValue {
     42 public:
     43     static PassRefPtrWillBeRawPtr<CSSFontFaceSrcValue> create(const String& resource)
     44     {
     45         return adoptRefWillBeNoop(new CSSFontFaceSrcValue(resource, false));
     46     }
     47     static PassRefPtrWillBeRawPtr<CSSFontFaceSrcValue> createLocal(const String& resource)
     48     {
     49         return adoptRefWillBeNoop(new CSSFontFaceSrcValue(resource, true));
     50     }
     51 
     52     const String& resource() const { return m_resource; }
     53     const String& format() const { return m_format; }
     54     bool isLocal() const { return m_isLocal; }
     55 
     56     void setFormat(const String& format) { m_format = format; }
     57     void setReferrer(const Referrer& referrer) { m_referrer = referrer; }
     58 
     59     bool isSupportedFormat() const;
     60 
     61 #if ENABLE(SVG_FONTS)
     62     bool isSVGFontFaceSrc() const;
     63 
     64     SVGFontFaceElement* svgFontFaceElement() const { return m_svgFontFaceElement; }
     65     void setSVGFontFaceElement(SVGFontFaceElement* element) { m_svgFontFaceElement = element; }
     66 #endif
     67 
     68     String customCSSText() const;
     69 
     70     bool hasFailedOrCanceledSubresources() const;
     71 
     72     FontResource* fetch(Document*);
     73 
     74     bool equals(const CSSFontFaceSrcValue&) const;
     75 
     76     void traceAfterDispatch(Visitor* visitor) { CSSValue::traceAfterDispatch(visitor); }
     77 
     78 private:
     79     CSSFontFaceSrcValue(const String& resource, bool local)
     80         : CSSValue(FontFaceSrcClass)
     81         , m_resource(resource)
     82         , m_isLocal(local)
     83 #if ENABLE(SVG_FONTS)
     84         , m_svgFontFaceElement(0)
     85 #endif
     86     {
     87     }
     88 
     89     void restoreCachedResourceIfNeeded(Document*);
     90     bool shouldSetCrossOriginAccessControl(const KURL& resource, SecurityOrigin*);
     91 
     92     String m_resource;
     93     String m_format;
     94     Referrer m_referrer;
     95     bool m_isLocal;
     96 
     97     ResourcePtr<FontResource> m_fetched;
     98 
     99 #if ENABLE(SVG_FONTS)
    100     // FIXME: Oilpan: Changing this to a member leaks Document.
    101     // Figure out the retaining path. See https://codereview.chromium.org/337703004
    102     SVGFontFaceElement* m_svgFontFaceElement;
    103 #endif
    104 };
    105 
    106 DEFINE_CSS_VALUE_TYPE_CASTS(CSSFontFaceSrcValue, isFontFaceSrcValue());
    107 
    108 }
    109 
    110 #endif
    111