commit 06e35b3289090ec623fe5284976ee6f40681e1d5
author Jan-Marek Glogowski <glogow@fbihome.de> Wed Sep 16 23:40:51 2020 +0200
committer Jan-Marek Glogowski <glogow@fbihome.de> Thu Sep 17 07:33:39 2020 +0200
tree 5a936974ee7e432b1d5bd34d2d5f67ca241471da
parent bd066a17a22826ceb10e7763074704289f838f74

tdf#136805 PDF export: re-add XMP basic meta data

VeraPDF complains about:

<rule specification="ISO 19005-1:2005" clause="6.7.3"
    testNumber="1" status="failed" passedChecks="0"
    failedChecks="1">
  <description>If a document information dictionary does appear
    at a document, then all of its entries that have analogous
    properties in predefined XMP schemas, shall also be embedded
    in the file in XMP form with equivalent values.</description>
  <object>CosDocument</object>
  <test>doesInfoMatchXMP</test>
  <check status="failed">
    <context>root</context>
  </check>
</rule>

The regressing commit dropped the XMP Basic schema meta data
(http://ns.adobe.com/xap/1.0/"). FWIW: xmp is the referred prefix,
so we'll continue to use it.

Regressed-by: d016e052ddf30649ad9b729b59134ce1e90a0263
Change-Id: I11b06fdafcb07732b92f0bd99b18afa3a9e498ef
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/102888
Tested-by: Jenkins
Reviewed-by: Jan-Marek Glogowski <glogow@fbihome.de>

vcl/inc/pdf/XmpMetadata.hxx

diff --git a/vcl/inc/pdf/XmpMetadata.hxx b/vcl/inc/pdf/XmpMetadata.hxx
index ae3ffad..7526d2b 100644
--- a/vcl/inc/pdf/XmpMetadata.hxx
+++ b/vcl/inc/pdf/XmpMetadata.hxx
@@ -29,6 +29,9 @@ public:
    OString msSubject;
    OString msProducer;
    OString msKeywords;
    OString m_sCreatorTool;
    OString m_sCreateDate;

    sal_Int32 mnPDF_A;
    bool mbPDF_UA;

vcl/source/gdi/pdfwriter_impl.cxx

diff --git a/vcl/source/gdi/pdfwriter_impl.cxx b/vcl/source/gdi/pdfwriter_impl.cxx
index e955bb9..b8c9614 100644
--- a/vcl/source/gdi/pdfwriter_impl.cxx
+++ b/vcl/source/gdi/pdfwriter_impl.cxx
@@ -5223,6 +5223,16 @@ static void escapeStringXML( const OUString& rStr, OUString &rValue)
    }
}

static void lcl_assignMeta(const OUString& aValue, OString& aMeta)
{
    if (!aValue.isEmpty())
    {
        OUString aTempString;
        escapeStringXML(aValue, aTempString);
        aMeta = OUStringToOString(aTempString, RTL_TEXTENCODING_UTF8);
    }
}

// emits the document metadata
sal_Int32 PDFWriterImpl::emitDocumentMetadata()
{
@@ -5245,36 +5255,13 @@ sal_Int32 PDFWriterImpl::emitDocumentMetadata()

        aMetadata.mbPDF_UA = m_bIsPDF_UA;

        if (!m_aContext.DocumentInfo.Title.isEmpty())
        {
            OUString aTempString;
            escapeStringXML(m_aContext.DocumentInfo.Title, aTempString);
            aMetadata.msTitle = OUStringToOString(aTempString, RTL_TEXTENCODING_UTF8);
        }
        if (!m_aContext.DocumentInfo.Author.isEmpty())
        {
            OUString aTempString;
            escapeStringXML(m_aContext.DocumentInfo.Author, aTempString);
            aMetadata.msAuthor = OUStringToOString(aTempString, RTL_TEXTENCODING_UTF8);
        }
        if (!m_aContext.DocumentInfo.Subject.isEmpty())
        {
            OUString aTempString;
            escapeStringXML(m_aContext.DocumentInfo.Subject, aTempString);
            aMetadata.msSubject = OUStringToOString(aTempString, RTL_TEXTENCODING_UTF8);
        }
        if (!m_aContext.DocumentInfo.Producer.isEmpty())
        {
            OUString aTempString;
            escapeStringXML(m_aContext.DocumentInfo.Producer, aTempString);
            aMetadata.msProducer = OUStringToOString(aTempString, RTL_TEXTENCODING_UTF8);
        }
        if (!m_aContext.DocumentInfo.Keywords.isEmpty())
        {
            OUString aTempString;
            escapeStringXML(m_aContext.DocumentInfo.Keywords, aTempString);
            aMetadata.msKeywords = OUStringToOString(aTempString, RTL_TEXTENCODING_UTF8);
        }
        lcl_assignMeta(m_aContext.DocumentInfo.Title, aMetadata.msTitle);
        lcl_assignMeta(m_aContext.DocumentInfo.Author, aMetadata.msAuthor);
        lcl_assignMeta(m_aContext.DocumentInfo.Subject, aMetadata.msSubject);
        lcl_assignMeta(m_aContext.DocumentInfo.Producer, aMetadata.msProducer);
        lcl_assignMeta(m_aContext.DocumentInfo.Keywords, aMetadata.msKeywords);
        lcl_assignMeta(m_aContext.DocumentInfo.Creator, aMetadata.m_sCreatorTool);
        aMetadata.m_sCreateDate = m_aCreationMetaDateString;

        OStringBuffer aMetadataObj( 1024 );

vcl/source/pdf/XmpMetadata.cxx

diff --git a/vcl/source/pdf/XmpMetadata.cxx b/vcl/source/pdf/XmpMetadata.cxx
index 281183c..70588da 100644
--- a/vcl/source/pdf/XmpMetadata.cxx
+++ b/vcl/source/pdf/XmpMetadata.cxx
@@ -143,6 +143,21 @@ void XmpMetadata::write()
            }
            aXmlWriter.endElement();
        }

        aXmlWriter.startElement("rdf:Description");
        aXmlWriter.attribute("rdf:about", OString(""));
        aXmlWriter.attribute("xmlns:xmp", OString("http://ns.adobe.com/xap/1.0/"));
        if (!m_sCreatorTool.isEmpty())
        {
            aXmlWriter.startElement("xmp:CreatorTool");
            aXmlWriter.content(m_sCreatorTool);
            aXmlWriter.endElement();
        }
        aXmlWriter.startElement("xmp:CreateDate");
        aXmlWriter.content(m_sCreateDate);
        aXmlWriter.endElement();
        aXmlWriter.endElement();

        aXmlWriter.endElement();
        aXmlWriter.endElement();
        aXmlWriter.endDocument();