Respect svg:font-face-format element.

Call libeot to parse font if value "embedded-opentype" is found.

Change-Id: I03a072fd4db47d151a3934e959ad17c1e24fcf09
Reviewed-on: https://gerrit.libreoffice.org/6144
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

3 files changed, 97 insertions, 4 deletions

diff --git a/xmloff/source/core/xmltoken.cxx b/xmloff/source/core/xmltoken.cxx
index 40511048b7a9..dedb2b48ec49 100644
--- a/xmloff/source/core/xmltoken.cxx
+++ b/xmloff/source/core/xmltoken.cxx
@@ -2486,6 +2486,7 @@ namespace xmloff { namespace token {
         TOKEN( "font-face",                        XML_FONT_FACE ),
         TOKEN( "font-face-src",                    XML_FONT_FACE_SRC ),
         TOKEN( "font-face-uri",                    XML_FONT_FACE_URI ),
+        TOKEN( "font-face-format",                 XML_FONT_FACE_FORMAT ),
         TOKEN( "font-adornments",                 XML_FONT_ADORNMENTS ),
         TOKEN( "inch",                             XML_INCH ),
         TOKEN( "space-after",                      XML_SPACE_AFTER ),
diff --git a/xmloff/source/style/XMLFontStylesContext.cxx b/xmloff/source/style/XMLFontStylesContext.cxx
index 33f998a2579c..29f480864a29 100644
--- a/xmloff/source/style/XMLFontStylesContext.cxx
+++ b/xmloff/source/style/XMLFontStylesContext.cxx
@@ -190,6 +190,26 @@ OUString XMLFontStyleContextFontFace::familyName() const
     return ret;
 }
 
+TYPEINIT1( XMLFontStyleContextFontFaceFormat, SvXMLStyleContext );
+
+XMLFontStyleContextFontFaceFormat::XMLFontStyleContextFontFaceFormat( SvXMLImport& rImport,
+        sal_uInt16 nPrfx, const OUString& rLName,
+        const ::com::sun::star::uno::Reference<
+            ::com::sun::star::xml::sax::XAttributeList > &xAttrList,
+        XMLFontStyleContextFontFaceUri& _uri )
+    : SvXMLStyleContext( rImport, nPrfx, rLName, xAttrList)
+    , uri(_uri)
+{
+}
+
+void XMLFontStyleContextFontFaceFormat::SetAttribute( sal_uInt16 nPrefixKey, const OUString& rLocalName,
+    const OUString& rValue )
+{
+    if( nPrefixKey == XML_NAMESPACE_SVG && IsXMLToken( rLocalName, XML_STRING ))
+        uri.SetFormat(rValue);
+    else
+        SvXMLStyleContext::SetAttribute( nPrefixKey, rLocalName, rValue );
+}
 
 TYPEINIT1( XMLFontStyleContextFontFaceSrc, SvXMLImportContext );
 
@@ -224,16 +244,57 @@ XMLFontStyleContextFontFaceUri::XMLFontStyleContextFontFaceUri( SvXMLImport& rIm
 {
 }
 
+SvXMLImportContext * XMLFontStyleContextFontFaceUri::CreateChildContext(
+        sal_uInt16 nPrefix,
+        const OUString& rLocalName,
+        const ::com::sun::star::uno::Reference< ::com::sun::star::xml::sax::XAttributeList > & xAttrList )
+{
+    if( nPrefix == XML_NAMESPACE_SVG && IsXMLToken( rLocalName, XML_FONT_FACE_FORMAT ))
+        return new XMLFontStyleContextFontFaceFormat( GetImport(), nPrefix, rLocalName, xAttrList, *this );
+    return SvXMLImportContext::CreateChildContext( nPrefix, rLocalName, xAttrList );
+}
+
 void XMLFontStyleContextFontFaceUri::SetAttribute( sal_uInt16 nPrefixKey, const OUString& rLocalName,
     const OUString& rValue )
 {
     if( nPrefixKey == XML_NAMESPACE_XLINK && IsXMLToken( rLocalName, XML_HREF ))
-        handleEmbeddedFont( rValue );
+        linkPath = rValue;
     else
         SvXMLStyleContext::SetAttribute( nPrefixKey, rLocalName, rValue );
 }
 
-void XMLFontStyleContextFontFaceUri::handleEmbeddedFont( const OUString& url )
+void XMLFontStyleContextFontFaceUri::SetFormat( const OUString& rFormat )
+{
+    format = rFormat;
+}
+void XMLFontStyleContextFontFaceUri::EndElement()
+{
+    if( linkPath.getLength() == 0 )
+    {
+        SAL_WARN( "xmloff", "svg:font-face-uri tag with no link; ignoring." );
+        return;
+    }
+    bool eot;
+    // Assume by default that the font is not compressed.
+    if( format.getLength() == 0
+        || format.equalsAscii( OPENTYPE_FORMAT )
+        || format.equalsAscii( TRUETYPE_FORMAT ))
+    {
+        eot = false;
+    }
+    else if( format.equalsAscii( EOT_FORMAT ))
+    {
+        eot = true;
+    }
+    else
+    {
+        SAL_WARN( "xmloff", "Unknown format of embedded font; assuming TTF." );
+        eot = false;
+    }
+    handleEmbeddedFont( linkPath, eot );
+}
+
+void XMLFontStyleContextFontFaceUri::handleEmbeddedFont( const OUString& url, bool eot )
 {
     if( GetImport().embeddedFontAlreadyProcessed( url ))
     {
@@ -252,7 +313,7 @@ void XMLFontStyleContextFontFaceUri::handleEmbeddedFont( const OUString& url )
         uno::Reference< io::XInputStream > inputStream;
         inputStream.set( storage->openStreamElement( url.copy( url.indexOf( '/' ) + 1 ), ::embed::ElementModes::READ ),
             UNO_QUERY_THROW );
-        if( EmbeddedFontsHelper::addEmbeddedFont( inputStream, fontName, "?" ))
+        if( EmbeddedFontsHelper::addEmbeddedFont( inputStream, fontName, "?", std::vector< unsigned char >(), eot ))
             GetImport().NotifyEmbeddedFontRead();
         inputStream->closeInput();
     }
diff --git a/xmloff/source/style/XMLFontStylesContext_impl.hxx b/xmloff/source/style/XMLFontStylesContext_impl.hxx
index 81e1b7afdaa2..6ad621f265e3 100644
--- a/xmloff/source/style/XMLFontStylesContext_impl.hxx
+++ b/xmloff/source/style/XMLFontStylesContext_impl.hxx
@@ -88,8 +88,16 @@ public:
 /// Handles <style:font-face-uri>
 class XMLFontStyleContextFontFaceUri : public SvXMLStyleContext
 {
+    // the CSS2 standard ( http://www.w3.org/TR/2008/REC-CSS2-20080411/fonts.html#referencing )
+    // defines these format strings.
+    const char* OPENTYPE_FORMAT = "opentype";
+    const char* TRUETYPE_FORMAT = "truetype";
+    const char* EOT_FORMAT      = "embedded-opentype";
+
     const XMLFontStyleContextFontFace& font;
-    void handleEmbeddedFont( const OUString& url );
+    OUString format;
+    OUString linkPath;
+    void handleEmbeddedFont( const OUString& url, bool eot );
 public:
 
     TYPEINFO();
@@ -102,6 +110,29 @@ public:
 
     virtual void SetAttribute( sal_uInt16 nPrefixKey, const OUString& rLocalName,
         const OUString& rValue );
+    void SetFormat( const OUString& rFormat );
+    void EndElement();
+    SvXMLImportContext * CreateChildContext(
+        sal_uInt16 nPrefix,
+        const OUString& rLocalName,
+        const ::com::sun::star::uno::Reference< ::com::sun::star::xml::sax::XAttributeList > & xAttrList );
+};
+
+/// Handles <svg:font-face-format>
+class XMLFontStyleContextFontFaceFormat : public SvXMLStyleContext
+{
+    XMLFontStyleContextFontFaceUri& uri;
+public:
+    TYPEINFO();
+
+    XMLFontStyleContextFontFaceFormat( SvXMLImport& rImport, sal_uInt16 nPrfx,
+            const OUString& rLName,
+            const ::com::sun::star::uno::Reference<
+                ::com::sun::star::xml::sax::XAttributeList > & xAttrList,
+            XMLFontStyleContextFontFaceUri& uri );
+
+    void SetAttribute( sal_uInt16 nPrefixKey, const OUString& rLocalName,
+        const OUString& rValue );
 };
 
 #endif