xref: /external/chromium_org/third_party/WebKit/Source/modules/crypto/DOMWindowCrypto.cpp

/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
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 * 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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#include "config.h"
#include "modules/crypto/DOMWindowCrypto.h"

#include "core/frame/LocalDOMWindow.h"
#include "modules/crypto/Crypto.h"

namespace blink {

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

DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(DOMWindowCrypto);

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

DOMWindowCrypto& DOMWindowCrypto::from(LocalDOMWindow& window)
{
    DOMWindowCrypto* supplement = static_cast<DOMWindowCrypto*>(WillBeHeapSupplement<LocalDOMWindow>::from(window, supplementName()));
    if (!supplement) {
        supplement = new DOMWindowCrypto(window);
        provideTo(window, supplementName(), adoptPtrWillBeNoop(supplement));
    }
    return *supplement;
}

Crypto* DOMWindowCrypto::crypto(LocalDOMWindow& window)
{
    return DOMWindowCrypto::from(window).crypto();
}

Crypto* DOMWindowCrypto::crypto() const
{
    if (!m_crypto && frame())
        m_crypto = Crypto::create();
    return m_crypto.get();
}

void DOMWindowCrypto::trace(Visitor* visitor)
{
    visitor->trace(m_crypto);
    WillBeHeapSupplement<LocalDOMWindow>::trace(visitor);
    DOMWindowProperty::trace(visitor);
}

} // namespace blink