third_party/WebKit/Source/core/animation/DocumentAnimations.cpp

/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
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#include "core/animation/DocumentAnimations.h"

#include "core/animation/AnimationClock.h"
#include "core/animation/CompositorPendingAnimations.h"
#include "core/animation/DocumentTimeline.h"
#include "core/dom/Document.h"
#include "core/dom/Element.h"
#include "core/dom/Node.h"
#include "core/dom/NodeComputedStyle.h"
#include "core/frame/FrameView.h"
#include "core/frame/LocalFrame.h"

namespace blink {

namespace {

void updateAnimationTiming(Document& document, TimingUpdateReason reason) {
  document.timeline().serviceAnimations(reason);
}

}  // namespace

void DocumentAnimations::updateAnimationTimingForAnimationFrame(
    Document& document) {
  updateAnimationTiming(document, TimingUpdateForAnimationFrame);
}

bool DocumentAnimations::needsAnimationTimingUpdate(const Document& document) {
  return document.timeline().hasOutdatedAnimation() ||
         document.timeline().needsAnimationTimingUpdate();
}

void DocumentAnimations::updateAnimationTimingIfNeeded(Document& document) {
  if (needsAnimationTimingUpdate(document))
    updateAnimationTiming(document, TimingUpdateOnDemand);
}

void DocumentAnimations::updateAnimations(Document& document) {
  if (!RuntimeEnabledFeatures::slimmingPaintV2Enabled())
    DCHECK(document.lifecycle().state() >= DocumentLifecycle::CompositingClean);
  else
    DCHECK(document.lifecycle().state() >= DocumentLifecycle::LayoutClean);

  if (document.compositorPendingAnimations().update()) {
    DCHECK(document.view());
    document.view()->scheduleAnimation();
  }

  document.timeline().scheduleNextService();
}

}  // namespace blink