xref: /external/chromium_org/third_party/WebKit/Source/modules/quota/StorageInfo.cpp

/*
 * 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,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 */

#include "config.h"

#include "modules/quota/StorageInfo.h"

#include "core/dom/Document.h"
#include "core/dom/ExceptionCode.h"
#include "core/dom/ExecutionContext.h"
#include "modules/quota/StorageErrorCallback.h"
#include "modules/quota/StorageQuota.h"
#include "modules/quota/StorageQuotaCallback.h"
#include "modules/quota/StorageUsageCallback.h"

namespace WebCore {

StorageInfo::StorageInfo()
{
    ScriptWrappable::init(this);
}

StorageInfo::~StorageInfo()
{
}

void StorageInfo::queryUsageAndQuota(ExecutionContext* executionContext, int storageType, PassOwnPtr<StorageUsageCallback> successCallback, PassOwnPtr<StorageErrorCallback> errorCallback)
{
    // Dispatching the request to StorageQuota, as this interface is deprecated in favor of StorageQuota.
    StorageQuota* storageQuota = getStorageQuota(storageType);
    if (!storageQuota) {
        // Unknown storage type is requested.
        executionContext->postTask(StorageErrorCallback::CallbackTask::create(errorCallback, NotSupportedError));
        return;
    }
    storageQuota->queryUsageAndQuota(executionContext, successCallback, errorCallback);
}

void StorageInfo::requestQuota(ExecutionContext* executionContext, int storageType, unsigned long long newQuotaInBytes, PassOwnPtr<StorageQuotaCallback> successCallback, PassOwnPtr<StorageErrorCallback> errorCallback)
{
    // Dispatching the request to StorageQuota, as this interface is deprecated in favor of StorageQuota.
    StorageQuota* storageQuota = getStorageQuota(storageType);
    if (!storageQuota) {
        // Unknown storage type is requested.
        executionContext->postTask(StorageErrorCallback::CallbackTask::create(errorCallback, NotSupportedError));
        return;
    }
    storageQuota->requestQuota(executionContext, newQuotaInBytes, successCallback, errorCallback);
}

StorageQuota* StorageInfo::getStorageQuota(int storageType)
{
    switch (storageType) {
    case TEMPORARY:
        if (!m_temporaryStorage)
            m_temporaryStorage = StorageQuota::create(StorageQuota::Temporary);
        return m_temporaryStorage.get();
    case PERSISTENT:
        if (!m_persistentStorage)
            m_persistentStorage = StorageQuota::create(StorageQuota::Persistent);
        return m_persistentStorage.get();
    }
    return 0;
}

} // namespace WebCore