Home | History | Annotate | Download | only in css 
      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 CSSFontFaceSource_h
     27 #define CSSFontFaceSource_h
     28 
     29 #include "CachedResourceClient.h"
     30 #include "CachedResourceHandle.h"
     31 #include <wtf/HashMap.h>
     32 #include <wtf/text/AtomicString.h>
     33 
     34 namespace WebCore {
     35 
     36 class CachedFont;
     37 class CSSFontFace;
     38 class CSSFontSelector;
     39 class FontDescription;
     40 class SimpleFontData;
     41 #if ENABLE(SVG_FONTS)
     42 class SVGFontElement;
     43 class SVGFontFaceElement;
     44 #endif
     45 
     46 
     47 class CSSFontFaceSource : public CachedResourceClient {
     48 public:
     49     CSSFontFaceSource(const String&, CachedFont* = 0);
     50     virtual ~CSSFontFaceSource();
     51 
     52     bool isLoaded() const;
     53     bool isValid() const;
     54 
     55     const AtomicString& string() const { return m_string; }
     56 
     57     void setFontFace(CSSFontFace* face) { m_face = face; }
     58 
     59     virtual void fontLoaded(CachedFont*);
     60 
     61     SimpleFontData* getFontData(const FontDescription&, bool syntheticBold, bool syntheticItalic, CSSFontSelector*);
     62 
     63     void pruneTable();
     64 
     65 #if ENABLE(SVG_FONTS)
     66     SVGFontFaceElement* svgFontFaceElement() const;
     67     void setSVGFontFaceElement(PassRefPtr<SVGFontFaceElement>);
     68     bool isSVGFontFaceSource() const;
     69     void setHasExternalSVGFont(bool value) { m_hasExternalSVGFont = value; }
     70 #endif
     71 
     72 private:
     73     AtomicString m_string; // URI for remote, built-in font name for local.
     74     CachedResourceHandle<CachedFont> m_font; // For remote fonts, a pointer to our cached resource.
     75     CSSFontFace* m_face; // Our owning font face.
     76     HashMap<unsigned, SimpleFontData*> m_fontDataTable; // The hash key is composed of size synthetic styles.
     77 
     78 #if ENABLE(SVG_FONTS)
     79     RefPtr<SVGFontFaceElement> m_svgFontFaceElement;
     80     RefPtr<SVGFontElement> m_externalSVGFontElement;
     81     bool m_hasExternalSVGFont;
     82 #endif
     83 };
     84 
     85 }
     86 
     87 #endif
     88