tdf#134133 Check when the eventqueue needs to be emptied.

To fix tdf#131254, forceEmpty call removed without a control.
Bug was related advance time setting. Now we control if slide has
advance time setting.

Change-Id: Ie83f4d7ff3e4bd0a744ca205173d747204918b39
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/108282
Tested-by: Jenkins
Reviewed-by: Gülşah Köse <gulsah.kose@collabora.com>

3 files changed, 24 insertions, 0 deletions

diff --git a/slideshow/source/engine/effectrewinder.cxx b/slideshow/source/engine/effectrewinder.cxx
index 5a784a7fe7d0..7b4042ba2471 100644
--- a/slideshow/source/engine/effectrewinder.cxx
+++ b/slideshow/source/engine/effectrewinder.cxx
@@ -28,6 +28,7 @@
 #include <com/sun/star/animations/EventTrigger.hpp>
 #include <com/sun/star/container/XEnumerationAccess.hpp>
 #include <com/sun/star/animations/XAnimate.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
 
 #include <officecfg/Office/Canvas.hxx>
 
@@ -82,6 +83,7 @@ EffectRewinder::EffectRewinder (
       mnMainSequenceEffectCount(0),
       mpAsynchronousRewindEvent(),
       mxCurrentAnimationRootNode(),
+      mxCurrentSlide(),
       mbNonUserTriggeredMainSequenceEffectSeen(false)
 {
     initialize();
@@ -154,6 +156,11 @@ void EffectRewinder::setRootAnimationNode (
     mxCurrentAnimationRootNode = xRootNode;
 }
 
+void EffectRewinder::setCurrentSlide (
+    const uno::Reference<drawing::XDrawPage>& xSlide)
+{
+    mxCurrentSlide = xSlide;
+}
 
 bool EffectRewinder::rewind (
     const ::std::shared_ptr<ScreenUpdater::UpdateLock>& rpPaintLock,
@@ -410,6 +417,15 @@ void EffectRewinder::asynchronousRewind (
         // when the slide is shown.
         mbNonUserTriggeredMainSequenceEffectSeen = false;
 
+        uno::Reference< beans::XPropertySet > xPropSet( mxCurrentSlide, uno::UNO_QUERY );
+        sal_Int32 nChange(0);
+
+        if( xPropSet.is())
+            getPropertyValue( nChange, xPropSet, "Change");
+
+        if (!nChange)
+            mrEventQueue.forceEmpty();
+
         if (mbNonUserTriggeredMainSequenceEffectSeen)
         {
             mrUserEventQueue.callSkipEffectEventHandler();
diff --git a/slideshow/source/engine/effectrewinder.hxx b/slideshow/source/engine/effectrewinder.hxx
index 69891172e3c9..4844991b8333 100644
--- a/slideshow/source/engine/effectrewinder.hxx
+++ b/slideshow/source/engine/effectrewinder.hxx
@@ -25,6 +25,7 @@
 #include <animationeventhandler.hxx>
 #include <event.hxx>
 #include <screenupdater.hxx>
+#include <com/sun/star/drawing/XDrawPage.hpp>
 
 #include <functional>
 #include <memory>
@@ -66,6 +67,11 @@ public:
     void setRootAnimationNode (
         const css::uno::Reference<css::animations::XAnimationNode>& xRootNode);
 
+    /** Store the XDrawPage to reach specific slide properties.
+    */
+    void setCurrentSlide (
+        const css::uno::Reference<css::drawing::XDrawPage>& xSlide);
+
     /** Rewind one effect of the main effect sequence.  When the current
         slide has not effects or no main sequence effect has yet been played
         then switch to the previous slide and replay all of its main
@@ -119,6 +125,7 @@ private:
     EventSharedPtr mpAsynchronousRewindEvent;
 
     css::uno::Reference<css::animations::XAnimationNode> mxCurrentAnimationRootNode;
+    css::uno::Reference<css::drawing::XDrawPage> mxCurrentSlide;
     ::std::shared_ptr<ScreenUpdater::UpdateLock> mpPaintLock;
 
     bool mbNonUserTriggeredMainSequenceEffectSeen;
diff --git a/slideshow/source/engine/slideshowimpl.cxx b/slideshow/source/engine/slideshowimpl.cxx
index 3bfee3cb88ba..5647170f9c4d 100644
--- a/slideshow/source/engine/slideshowimpl.cxx
+++ b/slideshow/source/engine/slideshowimpl.cxx
@@ -1059,6 +1059,7 @@ void SlideShowImpl::displaySlide(
         return;
 
     maEffectRewinder.setRootAnimationNode(xRootNode);
+    maEffectRewinder.setCurrentSlide(xSlide);
 
     // precondition: must only be called from the main thread!
     DBG_TESTSOLARMUTEX();