root/Source/core/animation/ActiveAnimations.cpp

DEFINITIONS

1. shouldCompositeForActiveAnimations
2. hasActiveAnimations
3. hasActiveAnimationsOnCompositor
4. hasActiveAnimations
5. hasActiveAnimationsOnCompositor
6. cancelAnimationOnCompositor
7. trace

/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
 * met:
 *
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 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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#include "config.h"
#include "core/animation/ActiveAnimations.h"

#include "core/rendering/RenderObject.h"

namespace WebCore {

bool shouldCompositeForActiveAnimations(const RenderObject& renderer)
{
    if (!renderer.node() || !renderer.node()->isElementNode())
        return false;

    const Element* element = toElement(renderer.node());
    if (const ActiveAnimations* activeAnimations = element->activeAnimations()) {
        if (activeAnimations->hasActiveAnimations(CSSPropertyOpacity)
            || activeAnimations->hasActiveAnimations(CSSPropertyTransform)
            || activeAnimations->hasActiveAnimations(CSSPropertyWebkitFilter))
            return true;
    }

    return false;
}

bool hasActiveAnimations(const RenderObject& renderer, CSSPropertyID property)
{
    if (!renderer.node() || !renderer.node()->isElementNode())
        return false;

    const Element* element = toElement(renderer.node());
    if (const ActiveAnimations* activeAnimations = element->activeAnimations())
        return activeAnimations->hasActiveAnimations(property);

    return false;
}

bool hasActiveAnimationsOnCompositor(const RenderObject& renderer, CSSPropertyID property)
{
    if (!renderer.node() || !renderer.node()->isElementNode())
        return false;

    const Element* element = toElement(renderer.node());
    if (const ActiveAnimations* activeAnimations = element->activeAnimations())
        return activeAnimations->hasActiveAnimationsOnCompositor(property);

    return false;
}

bool ActiveAnimations::hasActiveAnimations(CSSPropertyID property) const
{
    for (AnimationPlayerSet::const_iterator it = m_players.begin(); it != players().end(); ++it) {
        const AnimationPlayer& player = *it->key;
        ASSERT(player.source());
        // FIXME: Needs to consider AnimationGroup once added.
        ASSERT(player.source()->isAnimation());
        const Animation& animation = *toAnimation(player.source());
        if (animation.isCurrent() && animation.affects(property))
            return true;
    }
    return false;
}

bool ActiveAnimations::hasActiveAnimationsOnCompositor(CSSPropertyID property) const
{
    return m_defaultStack.hasActiveAnimationsOnCompositor(property);
}

void ActiveAnimations::cancelAnimationOnCompositor()
{
    for (AnimationPlayerSet::iterator it = m_players.begin(); it != players().end(); ++it)
        it->key->cancelAnimationOnCompositor();
}

void ActiveAnimations::trace(Visitor* visitor)
{
    visitor->trace(m_cssAnimations);
}

} // namespace WebCore