lok::Document getStyles method

This method returns a JSON mapping of style families to a list of styles
from the corresponding family.
Will be used to know and apply styles in tiledrendering.

Change-Id: I0aa395c40b9573920ade44255f97c077475ae5f1

desktop/source/lib/init.cxx

@@ -35,11 +35,13 @@
 #include <comphelper/processfactory.hxx>
 
 #include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/container/XNameAccess.hpp>
 #include <com/sun/star/frame/Desktop.hpp>
 #include <com/sun/star/frame/XStorable.hpp>
 #include <com/sun/star/lang/Locale.hpp>
 #include <com/sun/star/lang/XComponent.hpp>
 #include <com/sun/star/lang/XMultiServiceFactory.hpp>
+#include <com/sun/star/style/XStyleFamiliesSupplier.hpp>
 #include <com/sun/star/ucb/XContentProvider.hpp>
 #include <com/sun/star/ucb/XUniversalContentBroker.hpp>
 
@@ -233,6 +235,7 @@ static void doc_setGraphicSelection (LibreOfficeKitDocument* pThis,
                                   int nX,
                                   int nY);
 static void doc_resetSelection (LibreOfficeKitDocument* pThis);
+static char* doc_getStyles(LibreOfficeKitDocument* pThis);
 
 struct LibLODocument_Impl : public _LibreOfficeKitDocument
 {
@@ -267,6 +270,7 @@ struct LibLODocument_Impl : public _LibreOfficeKitDocument
             m_pDocumentClass->getTextSelection = doc_getTextSelection;
             m_pDocumentClass->setGraphicSelection = doc_setGraphicSelection;
             m_pDocumentClass->resetSelection = doc_resetSelection;
+            m_pDocumentClass->getStyles = doc_getStyles;
 
             gDocumentClass = m_pDocumentClass;
         }
@@ -864,6 +868,36 @@ static void doc_resetSelection(LibreOfficeKitDocument* pThis)
     pDoc->resetSelection();
 }
 
+static char* doc_getStyles(LibreOfficeKitDocument* pThis)
+{
+    LibLODocument_Impl* pDocument = static_cast<LibLODocument_Impl*>(pThis);
+
+    boost::property_tree::ptree aTree;
+    uno::Reference<css::style::XStyleFamiliesSupplier> xStyleFamiliesSupplier(pDocument->mxComponent, uno::UNO_QUERY);
+    uno::Reference<container::XNameAccess> xStyleFamilies(xStyleFamiliesSupplier->getStyleFamilies(), uno::UNO_QUERY);
+    uno::Sequence<OUString> aStyleFamilies = xStyleFamilies->getElementNames();
+
+    for (sal_Int32 nStyleFam = 0; nStyleFam < aStyleFamilies.getLength(); ++nStyleFam)
+    {
+        boost::property_tree::ptree aChildren;
+        OUString sStyleFam = aStyleFamilies[nStyleFam];
+        uno::Reference<container::XNameAccess> xStyleFamily(xStyleFamilies->getByName(sStyleFam), uno::UNO_QUERY);
+        uno::Sequence<OUString> aStyles = xStyleFamily->getElementNames();
+        for (sal_Int32 nInd = 0; nInd < aStyles.getLength(); ++nInd)
+        {
+            boost::property_tree::ptree aChild;
+            aChild.put("", aStyles[nInd]);
+            aChildren.push_back(std::make_pair("", aChild));
+        }
+        aTree.add_child(sStyleFam.toUtf8().getStr(), aChildren);
+    }
+    std::stringstream aStream;
+    boost::property_tree::write_json(aStream, aTree);
+    char* pJson = static_cast<char*>(malloc(aStream.str().size() + 1));
+    strcpy(pJson, aStream.str().c_str());
+    pJson[aStream.str().size()] = '\0';
+    return pJson;
+}
 static char* lo_getError (LibreOfficeKit *pThis)
 {
     LibLibreOffice_Impl* pLib = static_cast<LibLibreOffice_Impl*>(pThis);

include/LibreOfficeKit/LibreOfficeKit.h

@@ -159,6 +159,9 @@ struct _LibreOfficeKitDocumentClass
 
     /// @see lok::Document::resetSelection
     void (*resetSelection) (LibreOfficeKitDocument* pThis);
+
+    /// @see lok::Document:getStyles
+    char* (*getStyles) (LibreOfficeKitDocument* pThis);
 #endif // LOK_USE_UNSTABLE_API
 };
 

include/LibreOfficeKit/LibreOfficeKit.hxx

@@ -246,6 +246,14 @@ public:
     {
         mpDoc->pClass->resetSelection(mpDoc);
     }
+
+    /**
+     * Returns a json map, {"familyName1" : ["list of style names in the family1"], etc.}
+     */
+    inline char* getStyles()
+    {
+        return mpDoc->pClass->getStyles(mpDoc);
+    }
 #endif // LOK_USE_UNSTABLE_API
 };
 

libreofficekit/qa/unit/tiledrendering.cxx

@@ -9,6 +9,7 @@
 
 #include <memory>
 #include <boost/scoped_ptr.hpp>
+#include <boost/property_tree/json_parser.hpp>
 #include <cppunit/TestFixture.h>
 #include <cppunit/plugin/TestPlugIn.h>
 #include <cppunit/extensions/HelperMacros.h>
@@ -67,6 +68,7 @@ public:
     void testDocumentTypes( Office* pOffice );
     void testImpressSlideNames( Office* pOffice );
     void testCalcSheetNames( Office* pOffice );
+    void testGetStyles( Office* pOffice );
 #if 0
     void testOverlay( Office* pOffice );
 #endif
@@ -93,6 +95,7 @@ void TiledRenderingTest::runAllTests()
     testDocumentTypes( pOffice.get() );
     testImpressSlideNames( pOffice.get() );
     testCalcSheetNames( pOffice.get() );
+    testGetStyles( pOffice.get() );
 #if 0
     testOverlay( pOffice.get() );
 #endif
@@ -181,6 +184,38 @@ void TiledRenderingTest::testCalcSheetNames( Office* pOffice )
     CPPUNIT_ASSERT( strcmp( pDocument->getPartName( 2 ), "Sheet3" ) == 0 );
 }
 
+void TiledRenderingTest::testGetStyles( Office* pOffice )
+{
+    const string sDocPath = m_sSrcRoot + "/libreofficekit/qa/data/blank_text.odt";
+    const string sLockFile = m_sSrcRoot +"/libreofficekit/qa/data/.~lock.blank_text.odt#";
+
+    // FIXME: LOK will fail when trying to open a locked file
+    remove( sLockFile.c_str() );
+
+    scoped_ptr< Document> pDocument( pOffice->documentLoad( sDocPath.c_str() ) );
+
+    boost::property_tree::ptree aTree;
+    char* pJSON = pDocument->getStyles();
+    std::stringstream aStream(pJSON);
+    boost::property_tree::read_json(aStream, aTree);
+    CPPUNIT_ASSERT( aTree.size() > 0 );
+
+    for (const std::pair<std::string, boost::property_tree::ptree>& rPair : aTree)
+    {
+        CPPUNIT_ASSERT( rPair.second.size() > 0);
+        if (rPair.first != "CharacterStyles" &&
+            rPair.first != "ParagraphStyles" &&
+            rPair.first != "FrameStyles" &&
+            rPair.first != "PageStyles" &&
+            rPair.first != "NumberingStyles" &&
+            rPair.first != "CellStyles" &&
+            rPair.first != "ShapeStyles")
+        {
+            CPPUNIT_FAIL("Unknown style family: " + rPair.first);
+        }
+    }
+}
+
 #if 0
 static void dumpRGBABitmap( const OUString& rPath, const unsigned char* pBuffer,
                             const int nWidth, const int nHeight )