tdf#136278 Follow-up Check when the eventqueue needs to be emptied.

Follow up commit a63caf49958b40e33e0d7aaedbe6424f78ecdc46

Change-Id: I90b94f6aee1e1fe62f61ca20a75fd59e2a12d5da
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/108559
Tested-by: Jenkins
Reviewed-by: Gülşah Köse <gulsah.kose@collabora.com>

slideshow/source/engine/effectrewinder.cxx

@@ -84,7 +84,8 @@ EffectRewinder::EffectRewinder (
       mpAsynchronousRewindEvent(),
       mxCurrentAnimationRootNode(),
       mxCurrentSlide(),
-      mbNonUserTriggeredMainSequenceEffectSeen(false)
+      mbNonUserTriggeredMainSequenceEffectSeen(false),
+      mbHasAdvancedTimeSetting(false)
 {
     initialize();
 }
@@ -160,6 +161,15 @@ void EffectRewinder::setCurrentSlide (
     const uno::Reference<drawing::XDrawPage>& xSlide)
 {
     mxCurrentSlide = xSlide;
+
+    // Check if the current slide has advance time setting or not
+    uno::Reference< beans::XPropertySet > xPropSet( mxCurrentSlide, uno::UNO_QUERY );
+    sal_Int32 nChange(0);
+
+    if( xPropSet.is())
+        getPropertyValue( nChange, xPropSet, "Change");
+
+    mbHasAdvancedTimeSetting = nChange;
 }
 
 bool EffectRewinder::rewind (
@@ -179,6 +189,9 @@ bool EffectRewinder::rewind (
     // Abort (and skip over the rest of) any currently active animation.
     mrUserEventQueue.callSkipEffectEventHandler();
 
+    if (!mbHasAdvancedTimeSetting)
+        mrEventQueue.forceEmpty();
+
     const int nSkipCount (mnMainSequenceEffectCount - 1);
     if (nSkipCount < 0)
     {
@@ -417,13 +430,7 @@ 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)
+        if (!mbHasAdvancedTimeSetting)
             mrEventQueue.forceEmpty();
 
         if (mbNonUserTriggeredMainSequenceEffectSeen)

slideshow/source/engine/effectrewinder.hxx

@@ -129,6 +129,7 @@ private:
     ::std::shared_ptr<ScreenUpdater::UpdateLock> mpPaintLock;
 
     bool mbNonUserTriggeredMainSequenceEffectSeen;
+    bool mbHasAdvancedTimeSetting; // Slide has advanced time setting or not.
 
     void initialize();