third_party/WebKit/Source/modules/remoteplayback/HTMLMediaElementRemotePlayback.cpp

// Copyright 2015 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/remoteplayback/HTMLMediaElementRemotePlayback.h"

#include "core/dom/Document.h"
#include "core/dom/QualifiedName.h"
#include "core/html/HTMLMediaElement.h"
#include "modules/remoteplayback/RemotePlayback.h"

namespace blink {

// static
bool HTMLMediaElementRemotePlayback::fastHasAttribute(const QualifiedName& name, const HTMLMediaElement& element)
{
    ASSERT(name == HTMLNames::disableremoteplaybackAttr);
    return element.fastHasAttribute(name);
}

// static
void HTMLMediaElementRemotePlayback::setBooleanAttribute(const QualifiedName& name, HTMLMediaElement& element, bool value)
{
    ASSERT(name == HTMLNames::disableremoteplaybackAttr);
    element.setBooleanAttribute(name, value);
}

// static
HTMLMediaElementRemotePlayback& HTMLMediaElementRemotePlayback::from(HTMLMediaElement& element)
{
    HTMLMediaElementRemotePlayback* supplement = static_cast<HTMLMediaElementRemotePlayback*>(WillBeHeapSupplement<HTMLMediaElement>::from(element, supplementName()));
    if (!supplement) {
        supplement = new HTMLMediaElementRemotePlayback();
        provideTo(element, supplementName(), adoptPtrWillBeNoop(supplement));
    }
    return *supplement;
}

// static
RemotePlayback* HTMLMediaElementRemotePlayback::remote(HTMLMediaElement& element)
{
    HTMLMediaElementRemotePlayback& self = HTMLMediaElementRemotePlayback::from(element);
    Document& document = element.document();
    if (!document.frame())
        return nullptr;

    if (!self.m_remote)
        self.m_remote = RemotePlayback::create(element);

    return self.m_remote;
}

// static
const char* HTMLMediaElementRemotePlayback::supplementName()
{
    return "HTMLMediaElementRemotePlayback";
}

DEFINE_TRACE(HTMLMediaElementRemotePlayback)
{
    visitor->trace(m_remote);
    WillBeHeapSupplement<HTMLMediaElement>::trace(visitor);
}

} // namespace blink