third_party/WebKit/Source/modules/compositorworker/WindowAnimationWorklet.cpp

// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "modules/compositorworker/WindowAnimationWorklet.h"

#include "core/frame/LocalDOMWindow.h"
#include "core/frame/LocalFrame.h"
#include "modules/compositorworker/AnimationWorklet.h"

namespace blink {

WindowAnimationWorklet::WindowAnimationWorklet(LocalDOMWindow& window)
    : DOMWindowProperty(window.frame())
{
}

const char* WindowAnimationWorklet::supplementName()
{
    return "WindowAnimationWorklet";
}

// static
WindowAnimationWorklet& WindowAnimationWorklet::from(LocalDOMWindow& window)
{
    WindowAnimationWorklet* supplement = static_cast<WindowAnimationWorklet*>(Supplement<LocalDOMWindow>::from(window, supplementName()));
    if (!supplement) {
        supplement = new WindowAnimationWorklet(window);
        provideTo(window, supplementName(), supplement);
    }
    return *supplement;
}

// static
Worklet* WindowAnimationWorklet::animationWorklet(DOMWindow& window)
{
    return from(toLocalDOMWindow(window)).animationWorklet();
}

AnimationWorklet* WindowAnimationWorklet::animationWorklet()
{
    if (!m_animationWorklet && frame())
        m_animationWorklet = AnimationWorklet::create(frame());
    return m_animationWorklet.get();
}

DEFINE_TRACE(WindowAnimationWorklet)
{
    visitor->trace(m_animationWorklet);
    Supplement<LocalDOMWindow>::trace(visitor);
    DOMWindowProperty::trace(visitor);
}

} // namespace blink