Source/WebCore/worklets/Worklet.cpp

/*
 * Copyright (C) 2018 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#include "Worklet.h"

#if ENABLE(CSS_PAINTING_API)

#include "Document.h"
#include "PaintWorkletGlobalScope.h"
#include "ScriptSourceCode.h"
#include <wtf/IsoMallocInlines.h>

namespace WebCore {

WTF_MAKE_ISO_ALLOCATED_IMPL(Worklet);

Ref<Worklet> Worklet::create()
{
    return adoptRef(*new Worklet());
}

Worklet::Worklet()
{
}

void Worklet::addModule(Document& document, const String& moduleURL)
{
    // FIXME: We should download the source from the URL
    // https://bugs.webkit.org/show_bug.cgi?id=191136
    auto context = PaintWorkletGlobalScope::create(document, ScriptSourceCode(moduleURL));
    context->evaluate();

    auto locker = holdLock(context->paintDefinitionLock());
    for (auto& name : context->paintDefinitionMap().keys())
        document.setPaintWorkletGlobalScopeForName(name, makeRef(context.get()));
}

} // namespace WebCore

#endif