xref: /external/chromium_org/third_party/WebKit/Source/modules/quota/StorageQuota.h

/*
 * Copyright (C) 2011 Google 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:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * 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.
 *     * Neither the name of Google Inc. nor the names of its
 * 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
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 */

#ifndef StorageQuota_h
#define StorageQuota_h

#include "bindings/v8/ScriptWrappable.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefCounted.h"

namespace WebCore {

class ExecutionContext;
class StorageErrorCallback;
class StorageQuotaCallback;
class StorageUsageCallback;

class StorageQuota : public RefCounted<StorageQuota>, public ScriptWrappable {
public:
    enum Type {
        Temporary,
        Persistent,
    };

    static PassRefPtr<StorageQuota> create(Type type)
    {
        return adoptRef(new StorageQuota(type));
    }

    void queryUsageAndQuota(ExecutionContext*, PassOwnPtr<StorageUsageCallback>, PassOwnPtr<StorageErrorCallback>);

    void requestQuota(ExecutionContext*, unsigned long long newQuotaInBytes, PassOwnPtr<StorageQuotaCallback>, PassOwnPtr<StorageErrorCallback>);

    ~StorageQuota();

private:
    explicit StorageQuota(Type);
    Type m_type;
};

} // namespace WebCore

#endif // StorageQuota_h