SMIL animation should only progress() on active documents

Source/core/svg/animation/SMILTimeContainer.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 66 matching lines @@
     ASSERT(!m_preventScheduledAnimationsChanges);
 #endif
 }
 
 void SMILTimeContainer::schedule(SVGSMILElement* animation, SVGElement* target, const QualifiedName& attributeName)
 {
     ASSERT(animation->timeContainer() == this);
     ASSERT(target);
     ASSERT(animation->hasValidAttributeName());
     ASSERT(animation->hasValidAttributeType());
+    ASSERT(animation->inActiveDocument());
 
 #if ENABLE(ASSERT)
     ASSERT(!m_preventScheduledAnimationsChanges);
 #endif
 
     ElementAttributePair key(target, attributeName);
     OwnPtrWillBeMember<AnimationsLinkedHashSet>& scheduled = m_scheduledAnimations.add(key, nullptr).storedValue->value;
     if (!scheduled)
         scheduled = adoptPtrWillBeNoop(new AnimationsLinkedHashSet);
     ASSERT(!scheduled->contains(animation));
@@ skipping 66 matching lines @@
 
 bool SMILTimeContainer::isStarted() const
 {
     return m_beginTime;
 }
 
 void SMILTimeContainer::begin()
 {
     RELEASE_ASSERT(!m_beginTime);
 
+    if (!document().isActive())
+        return;
+
     if (!handleAnimationPolicy(RestartOnceTimerIfNotPaused))
         return;
 
     double now = currentTime();
 
     // If 'm_presetStartTime' is set, the timeline was modified via setElapsed() before the document began.
     // In this case pass on 'seekToTime=true' to updateAnimations().
     m_beginTime = now - m_presetStartTime;
 #if !ENABLE(OILPAN)
     DiscardScope discardScope(m_ownerSVGElement);
@@ skipping 236 matching lines @@
 {
     if (m_frameSchedulingState != AnimationFrame)
         return;
 
     m_frameSchedulingState = Idle;
     updateAnimationsAndScheduleFrameIfNeeded(elapsed());
 }
 
 void SMILTimeContainer::updateAnimationsAndScheduleFrameIfNeeded(SMILTime elapsed, bool seekToTime)
 {
+    if (!document().isActive())
+        return;
+
 #if !ENABLE(OILPAN)
     DiscardScope discardScope(m_ownerSVGElement);
 #endif
     SMILTime earliestFireTime = updateAnimations(elapsed, seekToTime);
     // If updateAnimations() ended up triggering a synchronization (most likely
     // via syncbases), then give that priority.
     if (hasPendingSynchronization())
         return;
 
     if (!isTimelineRunning())
         return;
 
     if (!earliestFireTime.isFinite())
         return;
 
     scheduleAnimationFrame(earliestFireTime);
 }
 
 SMILTime SMILTimeContainer::updateAnimations(SMILTime elapsed, bool seekToTime)
 {
+    ASSERT(document().isActive());
     SMILTime earliestFireTime = SMILTime::unresolved();
 
 #if ENABLE(ASSERT)
     // This boolean will catch any attempts to schedule/unschedule scheduledAnimations during this critical section.
     // Similarly, any elements removed will unschedule themselves, so this will catch modification of animationsToApply.
     m_preventScheduledAnimationsChanges = true;
 #endif
 
     if (m_documentOrderIndexesDirty)
         updateDocumentOrderIndexes();
@@ skipping 78 matching lines @@
 }
 
 DEFINE_TRACE(SMILTimeContainer)
 {
 #if ENABLE(OILPAN)
     visitor->trace(m_scheduledAnimations);
 #endif
 }
 
 }