Source/core/animation/DocumentAnimations.cpp

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

#include "core/animation/AnimationClock.h"
#include "core/animation/AnimationTimeline.h"
#include "core/dom/Document.h"
#include "core/dom/Element.h"
#include "core/dom/Node.h"
#include "core/dom/NodeRenderStyle.h"
#include "core/frame/FrameView.h"
#include "core/frame/LocalFrame.h"
#include "core/rendering/RenderView.h"
#include "core/rendering/compositing/RenderLayerCompositor.h"

namespace blink {

namespace {

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

} // namespace

void DocumentAnimations::updateAnimationTimingForAnimationFrame(Document& document, double monotonicAnimationStartTime)
{
    document.animationClock().updateTime(monotonicAnimationStartTime);
    updateAnimationTiming(document, TimingUpdateForAnimationFrame);
}

void DocumentAnimations::updateOutdatedAnimationPlayersIfNeeded(Document& document)
{
    if (needsOutdatedAnimationPlayerUpdate(document))
        updateAnimationTiming(document, TimingUpdateOnDemand);
}

void DocumentAnimations::updateAnimationTimingForGetComputedStyle(Node& node, CSSPropertyID property)
{
    if (!node.isElementNode())
        return;
    const Element& element = toElement(node);
    if (RenderStyle* style = element.renderStyle()) {
        if ((property == CSSPropertyOpacity && style->isRunningOpacityAnimationOnCompositor())
            || ((property == CSSPropertyTransform || property == CSSPropertyWebkitTransform) && style->isRunningTransformAnimationOnCompositor())
            || (property == CSSPropertyWebkitFilter && style->isRunningFilterAnimationOnCompositor())) {
            updateAnimationTiming(element.document(), TimingUpdateOnDemand);
        }
    }
}

bool DocumentAnimations::needsOutdatedAnimationPlayerUpdate(const Document& document)
{
    return document.timeline().hasOutdatedAnimationPlayer();
}

void DocumentAnimations::startPendingAnimations(Document& document)
{
    ASSERT(document.lifecycle().state() == DocumentLifecycle::CompositingClean);
    if (document.compositorPendingAnimations().startPendingAnimations()) {
        ASSERT(document.view());
        document.view()->scheduleAnimation();
    }
}

} // namespace blink