tdf#47365: import support for PPTX presentation's loop attribute

presProps stream handler is added to do this.
Export is not handled here.

Change-Id: I1979941a09c472c14f96c778ca9960ec14786fbe
Reviewed-on: https://gerrit.libreoffice.org/68237
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>

3 files changed, 65 insertions, 0 deletions

diff --git a/oox/Library_oox.mk b/oox/Library_oox.mk
index f924d27543ba..7da04f81a6ce 100644
--- a/oox/Library_oox.mk
+++ b/oox/Library_oox.mk
@@ -266,6 +266,7 @@ $(eval $(call gb_Library_add_exception_objects,oox,\
     oox/source/ppt/pptshapegroupcontext \
     oox/source/ppt/pptshapepropertiescontext \
     oox/source/ppt/presentationfragmenthandler \
+    oox/source/ppt/presPropsfragmenthandler \
     oox/source/ppt/slidefragmenthandler \
     oox/source/ppt/slidemastertextstylescontext \
     oox/source/ppt/slidepersist \
diff --git a/oox/source/ppt/pptimport.cxx b/oox/source/ppt/pptimport.cxx
index 22f661d95546..d65e408d3c13 100644
--- a/oox/source/ppt/pptimport.cxx
+++ b/oox/source/ppt/pptimport.cxx
@@ -40,6 +40,7 @@
 #include <oox/helper/graphichelper.hxx>
 #include <oox/ole/vbaproject.hxx>
 #include <oox/ppt/presentationfragmenthandler.hxx>
+#include <oox/ppt/presPropsfragmenthandler.hxx>
 #include <oox/token/tokens.hxx>
 
 using namespace ::com::sun::star;
@@ -125,6 +126,8 @@ bool PowerPointImport::importDocument()
     OUString aFragmentPath = getFragmentPathFromFirstTypeFromOfficeDoc( "officeDocument" );
     FragmentHandlerRef xPresentationFragmentHandler( new PresentationFragmentHandler( *this, aFragmentPath ) );
     maTableStyleListPath = xPresentationFragmentHandler->getFragmentPathFromFirstTypeFromOfficeDoc( "tableStyles" );
+    const OUString sPresPropsPath
+        = xPresentationFragmentHandler->getFragmentPathFromFirstTypeFromOfficeDoc("presProps");
 
     // importRelations() is cheap, it will do an actual import for the first time only.
     if (core::RelationsRef pFragmentRelations = importRelations(aFragmentPath))
@@ -137,6 +140,12 @@ bool PowerPointImport::importDocument()
     }
 
     bool bRet = importFragment(xPresentationFragmentHandler);
+    if (bRet && !sPresPropsPath.isEmpty())
+    {
+        FragmentHandlerRef xPresPropsFragmentHandler(
+            new PresPropsFragmentHandler(*this, sPresPropsPath));
+        importFragment(xPresPropsFragmentHandler);
+    }
 
     static bool bNoSmartartWarning = getenv("OOX_NO_SMARTART_WARNING");
     if (!bNoSmartartWarning && mbMissingExtDrawing)
diff --git a/oox/source/ppt/presPropsfragmenthandler.cxx b/oox/source/ppt/presPropsfragmenthandler.cxx
new file mode 100644
index 000000000000..effee38dfaa0
--- /dev/null
+++ b/oox/source/ppt/presPropsfragmenthandler.cxx
@@ -0,0 +1,55 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/presentation/XPresentationSupplier.hpp>
+
+#include <oox/helper/attributelist.hxx>
+#include <oox/ppt/pptimport.hxx>
+#include <oox/ppt/presPropsfragmenthandler.hxx>
+#include <oox/token/namespaces.hxx>
+
+namespace oox
+{
+namespace ppt
+{
+PresPropsFragmentHandler::PresPropsFragmentHandler(core::XmlFilterBase& rFilter,
+                                                   const OUString& rFragmentPath)
+    : FragmentHandler2(rFilter, rFragmentPath)
+{
+}
+
+PresPropsFragmentHandler::~PresPropsFragmentHandler() = default;
+
+void PresPropsFragmentHandler::finalizeImport()
+{
+    css::uno::Reference<css::presentation::XPresentationSupplier> xPresentationSupplier(
+        getFilter().getModel(), css::uno::UNO_QUERY_THROW);
+    css::uno::Reference<css::beans::XPropertySet> xPresentationProps(
+        xPresentationSupplier->getPresentation(), css::uno::UNO_QUERY_THROW);
+    xPresentationProps->setPropertyValue("IsEndless", css::uno::Any(m_bLoop));
+}
+
+core::ContextHandlerRef PresPropsFragmentHandler::onCreateContext(sal_Int32 aElementToken,
+                                                                  const AttributeList& rAttribs)
+{
+    switch (aElementToken)
+    {
+        case PPT_TOKEN(presentationPr):
+            return this;
+        case PPT_TOKEN(showPr):
+            m_bLoop = rAttribs.getBool(XML_loop, false);
+            return this;
+    }
+    return this;
+}
+} // namespace ppt
+} // namespace oox
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */