Source/modules/quota/NavigatorStorageQuota.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
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 *
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 * in the documentation and/or other materials provided with the
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 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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#include "config.h"
#include "modules/quota/NavigatorStorageQuota.h"

#include "core/frame/Navigator.h"
#include "modules/quota/DeprecatedStorageQuota.h"
#include "modules/quota/StorageQuota.h"

namespace blink {

NavigatorStorageQuota::NavigatorStorageQuota(LocalFrame* frame)
    : DOMWindowProperty(frame)
{
}

NavigatorStorageQuota::~NavigatorStorageQuota()
{
}

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

NavigatorStorageQuota& NavigatorStorageQuota::from(Navigator& navigator)
{
    NavigatorStorageQuota* supplement = static_cast<NavigatorStorageQuota*>(WillBeHeapSupplement<Navigator>::from(navigator, supplementName()));
    if (!supplement) {
        supplement = new NavigatorStorageQuota(navigator.frame());
        provideTo(navigator, supplementName(), adoptPtrWillBeNoop(supplement));
    }
    return *supplement;
}

StorageQuota* NavigatorStorageQuota::storageQuota(Navigator& navigator)
{
    return NavigatorStorageQuota::from(navigator).storageQuota();
}

DeprecatedStorageQuota* NavigatorStorageQuota::webkitTemporaryStorage(Navigator& navigator)
{
    return NavigatorStorageQuota::from(navigator).webkitTemporaryStorage();
}

DeprecatedStorageQuota* NavigatorStorageQuota::webkitPersistentStorage(Navigator& navigator)
{
    return NavigatorStorageQuota::from(navigator).webkitPersistentStorage();
}

StorageQuota* NavigatorStorageQuota::storageQuota() const
{
    if (!m_storageQuota && frame())
        m_storageQuota = StorageQuota::create();
    return m_storageQuota.get();
}

DeprecatedStorageQuota* NavigatorStorageQuota::webkitTemporaryStorage() const
{
    if (!m_temporaryStorage && frame())
        m_temporaryStorage = DeprecatedStorageQuota::create(DeprecatedStorageQuota::Temporary);
    return m_temporaryStorage.get();
}

DeprecatedStorageQuota* NavigatorStorageQuota::webkitPersistentStorage() const
{
    if (!m_persistentStorage && frame())
        m_persistentStorage = DeprecatedStorageQuota::create(DeprecatedStorageQuota::Persistent);
    return m_persistentStorage.get();
}

void NavigatorStorageQuota::trace(Visitor* visitor)
{
    visitor->trace(m_storageQuota);
    visitor->trace(m_temporaryStorage);
    visitor->trace(m_persistentStorage);
    WillBeHeapSupplement<Navigator>::trace(visitor);
}

} // namespace blink