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      1 /*
      2  * Copyright (C) 2007 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 #include "config.h"
     27 #include "CSSFontFaceSrcValue.h"
     28 #include "CSSStyleSheet.h"
     29 #include "Node.h"
     30 
     31 namespace WebCore {
     32 
     33 #if ENABLE(SVG_FONTS)
     34 bool CSSFontFaceSrcValue::isSVGFontFaceSrc() const
     35 {
     36     return equalIgnoringCase(m_format, "svg");
     37 }
     38 #endif
     39 
     40 bool CSSFontFaceSrcValue::isSupportedFormat() const
     41 {
     42     // Normally we would just check the format, but in order to avoid conflicts with the old WinIE style of font-face,
     43     // 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.
     44     if (m_format.isEmpty()) {
     45         // Check for .eot.
     46         if (m_resource.endsWith("eot", false))
     47             return false;
     48         return true;
     49     }
     50 
     51     return equalIgnoringCase(m_format, "truetype") || equalIgnoringCase(m_format, "opentype")
     52 #if ENABLE(SVG_FONTS)
     53            || isSVGFontFaceSrc()
     54 #endif
     55            ;
     56 }
     57 
     58 String CSSFontFaceSrcValue::cssText() const
     59 {
     60     String result;
     61     if (isLocal())
     62         result += "local(";
     63     else
     64         result += "url(";
     65     result += m_resource;
     66     result += ")";
     67     if (!m_format.isEmpty())
     68         result += " format(" + m_format + ")";
     69     return result;
     70 }
     71 
     72 void CSSFontFaceSrcValue::addSubresourceStyleURLs(ListHashSet<KURL>& urls, const CSSStyleSheet* styleSheet)
     73 {
     74     if (!isLocal())
     75         addSubresourceURL(urls, styleSheet->completeURL(m_resource));
     76 }
     77 
     78 }
     79 
     80