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