svg export: transition on first slide are not run - fixed

A dummy slide has been added to be used as leaving slide for transition
on first slide.

SVGExportTextDecorations unit test - fixed wrong XPath.
The new dummy slide group element caused the xpath to the slide
group to be wrong.

Change-Id: I6c1a0a80f71a79668c309bc0bcb3d5e588ef3a39

filter/source/svg/presentation_engine.js

@@ -1215,6 +1215,9 @@ function MetaDocument()
     this.aSlideAnimationsMap = new Object();
     this.initSlideAnimationsMap();
 
+    // We initialize dummy slide - used as leaving slide for transition on the first slide
+    this.theMetaDummySlide = new MetaSlide( 'ooo:meta_dummy_slide', this );
+
     // We initialize the set of MetaSlide objects that handle the meta
     // information for each slide.
     for( var i = 0; i < this.nNumberOfSlides; ++i )
@@ -1316,7 +1319,11 @@ function MetaSlide( sMetaSlideId, aMetaDoc )
     this.slideElement = this.theDocument.getElementById( this.slideId );
     assert( this.slideElement,
             'MetaSlide: slide element <' + this.slideId + '> not found.' );
-    this.nSlideNumber = parseInt( this.slideId.substr(2) );
+
+    if( this.slideId !== 'dummy_slide' )
+        this.nSlideNumber = parseInt( this.slideId.substr(2) );
+    else
+        this.nSlideNumber= -1;
 
     // Each slide element is wrapped by a <g> element that is responsible for
     // the slide element visibility. In fact the visibility attribute has
@@ -12588,11 +12595,22 @@ SlideShow.prototype.displaySlide = function( nNewSlide, bSkipSlideTransition )
     if( this.isEnabled() && !bSkipSlideTransition  )
     {
         // create slide transition and add to activity queue
-        if ( ( nOldSlide !== undefined ) &&
-            ( ( nNewSlide > nOldSlide ) ||
-              ( ( nNewSlide == 0) && ( nOldSlide == (aMetaDoc.nNumberOfSlides - 1) ) ) ) )
+        if ( ( ( nOldSlide !== undefined ) &&
+               ( ( nNewSlide > nOldSlide ) ||
+               ( ( nNewSlide == 0) && ( nOldSlide == (aMetaDoc.nNumberOfSlides - 1) ) ) ) ) ||
+             (  ( nOldSlide === undefined ) &&  ( nNewSlide == 0) )  // for transition on first slide
+           )
         {
-            var aOldMetaSlide = aMetaDoc.aMetaSlideSet[nOldSlide];
+
+            var aOldMetaSlide = null;
+            if( nOldSlide === undefined ) // for transition on first slide
+            {
+                aOldMetaSlide = aMetaDoc.theMetaDummySlide;
+            }
+            else
+            {
+                aOldMetaSlide = aMetaDoc.aMetaSlideSet[nOldSlide];
+            }
             var aNewMetaSlide = aMetaDoc.aMetaSlideSet[nNewSlide];
 
             var aSlideTransitionHandler = aNewMetaSlide.aTransitionHandler;

filter/source/svg/svgexport.cxx

@@ -1009,6 +1009,18 @@ bool SVGFilter::implGenerateMetaData()
             const OUString                aElemTextFieldId( aOOOElemTextField );
             std::vector< TextField* >     aFieldSet;
 
+            // dummy slide - used as leaving slide for transition on the first slide
+            if( mbPresentation )
+            {
+                mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, "id", NSPREFIX "meta_dummy_slide" );
+                mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, aOOOAttrSlide, "dummy-slide" );
+                mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, aOOOAttrMaster, "dummy-master-page" );
+                mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, aOOOAttrBackgroundVisibility, "hidden" );
+                mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, aOOOAttrMasterObjectsVisibility, "hidden" );
+                mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, aOOOAttrHasTransition, "false" );
+                SvXMLElementExport aMetaDummySlideElem( *mpSVGExport, XML_NAMESPACE_NONE, "g", true, true );
+            }
+
             for( sal_Int32 i = 0; i < nCount; ++i )
             {
                 const Reference< XDrawPage > &    xDrawPage = mSelectedPages[i];
@@ -1487,6 +1499,27 @@ bool SVGFilter::implExportMasterPages( const SVGFilter::XDrawPageSequence & rxPa
     OUString aContainerTag = (!mbPresentation) ? OUString( "g" ) : OUString( "defs" );
     SvXMLElementExport aContainerElement( *mpSVGExport, XML_NAMESPACE_NONE, aContainerTag, true, true );
 
+    // dummy slide - used as leaving slide for transition on the first slide
+    if( mbPresentation )
+    {
+        mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, "id", "dummy-master-page" );
+        mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, aOOOAttrName, "dummy-master-page" );
+        mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, "class", "Master_Slide" );
+        SvXMLElementExport aMasterSlideElem( *mpSVGExport, XML_NAMESPACE_NONE, "g", true, true );
+        {
+            mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, "id", "bg-dummy-master-page" );
+            mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, "class", "Background" );
+            mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, "visibility", "hidden" );
+            SvXMLElementExport aBackgroundElem( *mpSVGExport, XML_NAMESPACE_NONE, "g", true, true );
+        }
+        {
+            mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, "id", "bo-dummy-master-page" );
+            mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, "class", "BackgroundObjects" );
+            mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, "visibility", "hidden" );
+            SvXMLElementExport aBackgroundObjectElem( *mpSVGExport, XML_NAMESPACE_NONE, "g", true, true );
+        }
+    }
+
     bool bRet = false;
     for( sal_Int32 i = nFirstPage; i <= nLastPage; ++i )
     {
@@ -1515,6 +1548,28 @@ bool SVGFilter::implExportDrawPages( const SVGFilter::XDrawPageSequence & rxPage
     DBG_ASSERT( nFirstPage <= nLastPage,
                 "SVGFilter::implExportDrawPages: nFirstPage > nLastPage" );
 
+    // dummy slide - used as leaving slide for transition on the first slide
+    if( mbPresentation )
+    {
+        mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, "class", "DummySlide" );
+        SvXMLElementExport aDummySlideElement( *mpSVGExport, XML_NAMESPACE_NONE, "g", true, true );
+        {
+           SvXMLElementExport aGElement( *mpSVGExport, XML_NAMESPACE_NONE, "g", true, true );
+            {
+                mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, "id", "dummy-slide" );
+                mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, "class", "Slide" );
+                OUString sClipPathAttrValue = "url(#" + msClipPathId + ")";
+                mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, "clip-path", sClipPathAttrValue );
+                SvXMLElementExport aSlideElement( *mpSVGExport, XML_NAMESPACE_NONE, "g", true, true );
+                {
+                    mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, aOOOAttrName, "dummy-page" );
+                    mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, "class", "Page" );
+                    SvXMLElementExport aPageElement( *mpSVGExport, XML_NAMESPACE_NONE, "g", true, true );
+                }
+            }
+        }
+    }
+
     // We wrap all slide in a group element with class name "SlideGroup".
     mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, "class", "SlideGroup" );
     SvXMLElementExport aExp( *mpSVGExport, XML_NAMESPACE_NONE, "g", true, true );