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      1 /*
      2  * Copyright (C) 2011 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef StorageInfo_h
     32 #define StorageInfo_h
     33 
     34 #include "bindings/v8/ScriptWrappable.h"
     35 #include "wtf/PassRefPtr.h"
     36 #include "wtf/RefCounted.h"
     37 #include "wtf/RefPtr.h"
     38 
     39 namespace WebCore {
     40 
     41 class ScriptExecutionContext;
     42 class StorageErrorCallback;
     43 class StorageQuota;
     44 class StorageQuotaCallback;
     45 class StorageUsageCallback;
     46 
     47 class StorageInfo : public RefCounted<StorageInfo>, public ScriptWrappable {
     48 public:
     49     enum {
     50         TEMPORARY,
     51         PERSISTENT,
     52     };
     53 
     54     static PassRefPtr<StorageInfo> create()
     55     {
     56         return adoptRef(new StorageInfo());
     57     }
     58 
     59     void queryUsageAndQuota(ScriptExecutionContext*, int storageType, PassRefPtr<StorageUsageCallback>, PassRefPtr<StorageErrorCallback>);
     60 
     61     void requestQuota(ScriptExecutionContext*, int storageType, unsigned long long newQuotaInBytes, PassRefPtr<StorageQuotaCallback>, PassRefPtr<StorageErrorCallback>);
     62 
     63     ~StorageInfo();
     64 
     65 private:
     66     StorageInfo();
     67 
     68     StorageQuota* getStorageQuota(int storageType);
     69 
     70     mutable RefPtr<StorageQuota> m_temporaryStorage;
     71     mutable RefPtr<StorageQuota> m_persistentStorage;
     72 };
     73 
     74 } // namespace WebCore
     75 
     76 #endif // StorageInfo_h
     77