double AnimationControllerPrivate::updateAnimations(SetChanged callSetChanged/* = DoNotCallSetChanged*/) { double timeToNextService = -1; bool calledSetChanged = false; RenderObjectAnimationMap::const_iterator animationsEnd = m_compositeAnimations.end(); for (RenderObjectAnimationMap::const_iterator it = m_compositeAnimations.begin(); it != animationsEnd; ++it) { CompositeAnimation* compAnim = it->value.get(); if (!compAnim->isSuspended() && compAnim->hasAnimations()) { double t = compAnim->timeToNextService(); if (t != -1 && (t < timeToNextService || timeToNextService == -1)) timeToNextService = t; if (!timeToNextService) { if (callSetChanged == CallSetChanged) { Node* node = it->key->node(); ASSERT(!node || (node->document() && !node->document()->inPageCache())); node->setNeedsStyleRecalc(SyntheticStyleChange); calledSetChanged = true; } else break; } } } if (calledSetChanged) m_frame->document()->updateStyleIfNeeded(); return timeToNextService; }
void AnimationControllerPrivate::updateAnimationTimer(bool callSetChanged/* = false*/) { double needsService = -1; bool calledSetChanged = false; RenderObjectAnimationMap::const_iterator animationsEnd = m_compositeAnimations.end(); for (RenderObjectAnimationMap::const_iterator it = m_compositeAnimations.begin(); it != animationsEnd; ++it) { CompositeAnimation* compAnim = it->second.get(); if (!compAnim->isSuspended() && compAnim->hasAnimations()) { double t = compAnim->timeToNextService(); if (t != -1 && (t < needsService || needsService == -1)) needsService = t; if (needsService == 0) { if (callSetChanged) { Node* node = it->first->node(); ASSERT(!node || (node->document() && !node->document()->inPageCache())); node->setNeedsStyleRecalc(SyntheticStyleChange); calledSetChanged = true; } else break; } } } if (calledSetChanged) m_frame->document()->updateStyleIfNeeded(); // If we want service immediately, we start a repeating timer to reduce the overhead of starting if (needsService == 0) { if (!m_animationTimer.isActive() || m_animationTimer.repeatInterval() == 0) m_animationTimer.startRepeating(cAnimationTimerDelay); return; } // If we don't need service, we want to make sure the timer is no longer running if (needsService < 0) { if (m_animationTimer.isActive()) m_animationTimer.stop(); return; } // Otherwise, we want to start a one-shot timer so we get here again if (m_animationTimer.isActive()) m_animationTimer.stop(); m_animationTimer.startOneShot(needsService); }