tdf#77186 handle time container indefinite repetition.

Indefinite duration isn't necessary for indefinite repetition,
so simply check the number of iteration left and do not decrease
the number when the repetition is indefinite.

Note: a known issue is that the next effect starts before
"until click" or "until next slide" if the starting time of
the next slide is "after previous". A workaround is to set
the starting time of the next slide to "click".

Change-Id: Ie9c73b472dc400bc41501029ff19ecc3e3fab2df
Reviewed-on: https://gerrit.libreoffice.org/67896
Tested-by: Jenkins
Reviewed-by: Mark Hung <marklh9@gmail.com>

slideshow/source/engine/animationnodes/basecontainernode.cxx

@@ -41,6 +41,7 @@ BaseContainerNode::BaseContainerNode(
       maChildren(),
       mnFinishedChildren(0),
       mnLeftIterations(0),
+      mbRepeatIndefinite(xNode->getRepeatCount().hasValue() && isIndefiniteTiming(xNode->getRepeatCount())),
       mbDurationIndefinite( isIndefiniteTiming( xNode->getEnd() ) &&
                             isIndefiniteTiming( xNode->getDuration() ) )
 {
@@ -137,12 +138,9 @@ bool BaseContainerNode::notifyDeactivatedChild(
     ++mnFinishedChildren;
     bool bFinished = (mnFinishedChildren >= nSize);
 
-    // all children finished, and we've got indefinite duration?
-    // think of ParallelTimeContainer::notifyDeactivating()
-    // if duration given, we will be deactivated by some end event
-    // @see fillCommonParameters()
-    if (bFinished && isDurationIndefinite()) {
-        if( mnLeftIterations >= 1.0 )
+    // Handle repetition here.
+    if (bFinished) {
+        if(!mbRepeatIndefinite && mnLeftIterations >= 1.0)
         {
             mnLeftIterations -= 1.0;
         }
@@ -155,7 +153,7 @@ bool BaseContainerNode::notifyDeactivatedChild(
                                "BaseContainerNode::repeat");
             getContext().mrEventQueue.addEvent( aRepetitionEvent );
         }
-        else
+        else if (isDurationIndefinite())
         {
             deactivate();
         }
@@ -166,6 +164,10 @@ bool BaseContainerNode::notifyDeactivatedChild(
 
 void BaseContainerNode::repeat()
 {
+    // Prevent repeat event scheduled before deactivation.
+    if (getState() == FROZEN || getState() == ENDED)
+        return;
+
     forEachChildNode( std::mem_fn(&AnimationNode::end), ~ENDED );
     bool bState = init_children();
     if( bState )

slideshow/source/engine/animationnodes/basenode.cxx

@@ -539,12 +539,26 @@ void BaseNode::scheduleDeactivationEvent( EventSharedPtr const& pEvent )
         // if anim base node has no activity, this is called to schedule deactivation,
         // but what if it does not schedule anything?
 
-        // TODO(F2): Handle end time attribute, too
         auto self(mpSelf);
-        mpCurrentEvent = generateEvent(
-            mxAnimationNode->getDuration(),
-            [self] () { self->deactivate(); },
-            maContext, 0.0 );
+        if (mxAnimationNode->getEnd().hasValue())
+        {
+            // TODO: We may need to calculate the duration if the end value is numeric.
+            // We expect that the end value contains EventTrigger::ON_NEXT here.
+            // LibreOffice does not generate numeric values, so we can leave it
+            // until we find a test case.
+            mpCurrentEvent = generateEvent(
+                mxAnimationNode->getEnd(),
+                [self] () { self->deactivate(); },
+                maContext, 0.0 );
+
+        }
+        else
+        {
+            mpCurrentEvent = generateEvent(
+                mxAnimationNode->getDuration(),
+                [self] () { self->deactivate(); },
+                maContext, 0.0 );
+        }
     }
 }
 

slideshow/source/inc/basecontainernode.hxx

@@ -85,6 +85,7 @@ protected:
     double       mnLeftIterations;
 
 private:
+    const bool          mbRepeatIndefinite;
     const bool          mbDurationIndefinite;
 };