EPUB export: handle span-level line break

By pulling out common part of the paragraph/span context factory.

Change-Id: If5fda87ce9f60e7e10d7f9406c30740bc8707143
Reviewed-on: https://gerrit.libreoffice.org/42064Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Tested-by: Jenkins <ci@libreoffice.org>

writerperfect/qa/unit/EPUBExportTest.cxx

@@ -325,7 +325,9 @@ void EPUBExportTest::testLineBreak()
 
     mpXmlDoc = parseExport("OEBPS/sections/section0001.xhtml");
     // This was 0, line break was not handled.
-    assertXPath(mpXmlDoc, "//xhtml:p/xhtml:br", 1);
+    assertXPath(mpXmlDoc, "//xhtml:p[1]/xhtml:br", 1);
+    // This was 0, line break inside span was not handled.
+    assertXPath(mpXmlDoc, "//xhtml:p[2]/xhtml:br", 1);
 }
 
 CPPUNIT_TEST_SUITE_REGISTRATION(EPUBExportTest);

writerperfect/qa/unit/data/writer/epubexport/line-break.fodt

 <?xml version="1.0" encoding="UTF-8"?>
-<office:document office:mimetype="application/vnd.oasis.opendocument.text" office:version="1.2" xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:text="urn:oasis:names:tc:opendocument:xmlns:text:1.0">
+<office:document xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:style="urn:oasis:names:tc:opendocument:xmlns:style:1.0" xmlns:text="urn:oasis:names:tc:opendocument:xmlns:text:1.0" xmlns:fo="urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0" xmlns:officeooo="http://openoffice.org/2009/office" office:version="1.2" office:mimetype="application/vnd.oasis.opendocument.text">
+  <office:automatic-styles>
+    <style:style style:name="T1" style:family="text">
+      <style:text-properties officeooo:rsid="000075b1"/>
+    </style:style>
+    <style:style style:name="T2" style:family="text">
+      <style:text-properties fo:font-weight="bold"/>
+    </style:style>
+    <style:style style:name="T3" style:family="text">
+      <style:text-properties fo:font-weight="bold" officeooo:rsid="000075b1"/>
+    </style:style>
+  </office:automatic-styles>
   <office:body>
     <office:text>
       <text:p>a<text:line-break/>b</text:p>
+      <text:p><text:span text:style-name="T1">a</text:span><text:span text:style-name="T2">a<text:line-break/></text:span><text:span text:style-name="T3">b</text:span>b</text:p>
     </office:text>
   </office:body>
 </office:document>

writerperfect/source/writer/exp/txtparai.cxx

@@ -103,7 +103,7 @@ XMLImportContext *XMLSpanContext::CreateChildContext(const OUString &rName, cons
         return new XMLTextFrameContext(mrImport);
     if (rName == "text:span")
         return new XMLSpanContext(mrImport, &m_aPropertyList);
-    return nullptr;
+    return writerperfect::exp::CreateChildContext(mrImport, rName);
 }
 
 void XMLSpanContext::startElement(const OUString &/*rName*/, const css::uno::Reference<css::xml::sax::XAttributeList> &xAttribs)
@@ -207,9 +207,7 @@ XMLImportContext *XMLParaContext::CreateChildContext(const OUString &rName, cons
         return new XMLSpanContext(mrImport, nullptr);
     if (rName == "text:a")
         return new XMLHyperlinkContext(mrImport);
-    if (rName == "text:line-break")
-        return new XMLLineBreakContext(mrImport);
-    return nullptr;
+    return writerperfect::exp::CreateChildContext(mrImport, rName);
 }
 
 void XMLParaContext::startElement(const OUString &/*rName*/, const css::uno::Reference<css::xml::sax::XAttributeList> &xAttribs)
@@ -253,6 +251,13 @@ void XMLParaContext::characters(const OUString &rChars)
     mrImport.GetGenerator().closeSpan();
 }
 
+XMLImportContext *CreateChildContext(XMLImport &rImport, const OUString &rName)
+{
+    if (rName == "text:line-break")
+        return new XMLLineBreakContext(rImport);
+    return nullptr;
+}
+
 } // namespace exp
 } // namespace writerperfect
 

writerperfect/source/writer/exp/txtparai.hxx

@@ -33,6 +33,9 @@ private:
     OUString m_aStyleName;
 };
 
+/// Shared child context factory for paragraph and span contexts.
+XMLImportContext *CreateChildContext(XMLImport &rImport, const OUString &rName);
+
 } // namespace exp
 } // namespace writerperfect