EPUB export: initial fixed layout support

This is just the bare minimum that is already a fixed layout and is
valid.

Change-Id: I64e1216d92125377d7836988586da9ea1d878536
Reviewed-on: https://gerrit.libreoffice.org/45643
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>

3 files changed, 33 insertions, 0 deletions

diff --git a/writerperfect/qa/unit/EPUBExportTest.cxx b/writerperfect/qa/unit/EPUBExportTest.cxx
index 335347de60ff..a9692bc2c293 100644
--- a/writerperfect/qa/unit/EPUBExportTest.cxx
+++ b/writerperfect/qa/unit/EPUBExportTest.cxx
@@ -57,6 +57,7 @@ public:
     void testOutlineLevel();
     void testMimetype();
     void testEPUB2();
+    void testEPUBFixedLayout();
     void testPageBreakSplit();
     void testSpanAutostyle();
     void testParaAutostyleCharProps();
@@ -96,6 +97,7 @@ public:
     CPPUNIT_TEST(testOutlineLevel);
     CPPUNIT_TEST(testMimetype);
     CPPUNIT_TEST(testEPUB2);
+    CPPUNIT_TEST(testEPUBFixedLayout);
     CPPUNIT_TEST(testPageBreakSplit);
     CPPUNIT_TEST(testSpanAutostyle);
     CPPUNIT_TEST(testParaAutostyleCharProps);
@@ -292,6 +294,20 @@ void EPUBExportTest::testEPUB2()
     assertXPath(mpXmlDoc, "/opf:package", "version", "2.0");
 }
 
+void EPUBExportTest::testEPUBFixedLayout()
+{
+    uno::Sequence<beans::PropertyValue> aFilterData(comphelper::InitPropertySequence(
+    {
+        // Explicitly request fixed layout.
+        {"EPUBLayoutMethod", uno::makeAny(static_cast<sal_Int32>(libepubgen::EPUB_LAYOUT_METHOD_FIXED))}
+    }));
+    createDoc("hello.fodt", aFilterData);
+
+    mpXmlDoc = parseExport("OEBPS/content.opf");
+    // This was missing, EPUBLayoutMethod filter option was ignored and we always emitted reflowable layout.
+    assertXPathContent(mpXmlDoc, "/opf:package/opf:metadata/opf:meta[@property='rendition:layout']", "pre-paginated");
+}
+
 void EPUBExportTest::testPageBreakSplit()
 {
     uno::Sequence<beans::PropertyValue> aFilterData(comphelper::InitPropertySequence(
diff --git a/writerperfect/source/writer/EPUBExportFilter.cxx b/writerperfect/source/writer/EPUBExportFilter.cxx
index ba9e30d85df9..8ebf5994aedc 100644
--- a/writerperfect/source/writer/EPUBExportFilter.cxx
+++ b/writerperfect/source/writer/EPUBExportFilter.cxx
@@ -48,10 +48,20 @@ sal_Int32 EPUBExportFilter::GetDefaultSplitMethod()
     return libepubgen::EPUB_SPLIT_METHOD_HEADING;
 }
 
+sal_Int32 EPUBExportFilter::GetDefaultLayoutMethod()
+{
+#if LIBEPUBGEN_VERSION_SUPPORT
+    return libepubgen::EPUB_LAYOUT_METHOD_REFLOWABLE;
+#else
+    return 0;
+#endif
+}
+
 sal_Bool EPUBExportFilter::filter(const uno::Sequence<beans::PropertyValue> &rDescriptor)
 {
     sal_Int32 nVersion = EPUBExportFilter::GetDefaultVersion();
     sal_Int32 nSplitMethod = EPUBExportFilter::GetDefaultSplitMethod();
+    sal_Int32 nLayoutMethod = EPUBExportFilter::GetDefaultLayoutMethod();
     uno::Sequence<beans::PropertyValue> aFilterData;
     for (sal_Int32 i = 0; i < rDescriptor.getLength(); ++i)
     {
@@ -68,6 +78,8 @@ sal_Bool EPUBExportFilter::filter(const uno::Sequence<beans::PropertyValue> &rDe
             aFilterData[i].Value >>= nVersion;
         else if (aFilterData[i].Name == "EPUBSplitMethod")
             aFilterData[i].Value >>= nSplitMethod;
+        else if (aFilterData[i].Name == "EPUBLayoutMethod")
+            aFilterData[i].Value >>= nLayoutMethod;
     }
 
     // Build the export filter chain: the package has direct access to the ZIP
@@ -79,6 +91,9 @@ sal_Bool EPUBExportFilter::filter(const uno::Sequence<beans::PropertyValue> &rDe
                                              , nVersion
 #endif
                                             );
+#if LIBEPUBGEN_VERSION_SUPPORT
+    aGenerator.setLayoutMethod(static_cast<libepubgen::EPUBLayoutMethod>(nLayoutMethod));
+#endif
     OUString aSourceURL;
     uno::Reference<frame::XModel> xSourceModel(mxSourceDocument, uno::UNO_QUERY);
     if (xSourceModel.is())
diff --git a/writerperfect/source/writer/EPUBExportFilter.hxx b/writerperfect/source/writer/EPUBExportFilter.hxx
index b423f96175e7..e96b0a84b695 100644
--- a/writerperfect/source/writer/EPUBExportFilter.hxx
+++ b/writerperfect/source/writer/EPUBExportFilter.hxx
@@ -50,6 +50,8 @@ public:
     static sal_Int32 GetDefaultVersion();
     /// Gives the default split method.
     static sal_Int32 GetDefaultSplitMethod();
+    /// Gives the default layout method.
+    static sal_Int32 GetDefaultLayoutMethod();
 };
 
 } // namespace writerperfect