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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_CALLBACKS_H_
      6 #define CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_CALLBACKS_H_
      7 
      8 #include <string>
      9 #include <vector>
     10 
     11 #include "base/basictypes.h"
     12 #include "base/logging.h"
     13 #include "base/memory/ref_counted.h"
     14 #include "base/memory/scoped_ptr.h"
     15 #include "base/strings/string16.h"
     16 #include "content/browser/indexed_db/indexed_db_database_error.h"
     17 #include "content/browser/indexed_db/indexed_db_dispatcher_host.h"
     18 #include "content/common/indexed_db/indexed_db_key.h"
     19 #include "content/common/indexed_db/indexed_db_key_path.h"
     20 #include "url/gurl.h"
     21 
     22 namespace content {
     23 class IndexedDBConnection;
     24 class IndexedDBCursor;
     25 class IndexedDBDatabase;
     26 class IndexedDBDatabaseCallbacks;
     27 struct IndexedDBDatabaseMetadata;
     28 
     29 class CONTENT_EXPORT IndexedDBCallbacks
     30     : public base::RefCounted<IndexedDBCallbacks> {
     31  public:
     32   // Simple payload responses
     33   IndexedDBCallbacks(IndexedDBDispatcherHost* dispatcher_host,
     34                      int32 ipc_thread_id,
     35                      int32 ipc_callbacks_id);
     36 
     37   // IndexedDBCursor responses
     38   IndexedDBCallbacks(IndexedDBDispatcherHost* dispatcher_host,
     39                      int32 ipc_thread_id,
     40                      int32 ipc_callbacks_id,
     41                      int32 ipc_cursor_id);
     42 
     43   // IndexedDBDatabase responses
     44   IndexedDBCallbacks(IndexedDBDispatcherHost* dispatcher_host,
     45                      int32 ipc_thread_id,
     46                      int32 ipc_callbacks_id,
     47                      int32 ipc_database_callbacks_id,
     48                      int64 host_transaction_id,
     49                      const GURL& origin_url);
     50 
     51   virtual void OnError(const IndexedDBDatabaseError& error);
     52 
     53   // IndexedDBFactory::GetDatabaseNames
     54   virtual void OnSuccess(const std::vector<base::string16>& string);
     55 
     56   // IndexedDBFactory::Open / DeleteDatabase
     57   virtual void OnBlocked(int64 existing_version);
     58 
     59   // IndexedDBFactory::Open
     60   virtual void OnUpgradeNeeded(
     61       int64 old_version,
     62       scoped_ptr<IndexedDBConnection> connection,
     63       const content::IndexedDBDatabaseMetadata& metadata,
     64       blink::WebIDBDataLoss data_loss,
     65       std::string data_loss_message);
     66   virtual void OnSuccess(scoped_ptr<IndexedDBConnection> connection,
     67                          const content::IndexedDBDatabaseMetadata& metadata);
     68 
     69   // IndexedDBDatabase::OpenCursor
     70   virtual void OnSuccess(scoped_refptr<IndexedDBCursor> cursor,
     71                          const IndexedDBKey& key,
     72                          const IndexedDBKey& primary_key,
     73                          std::string* value);
     74 
     75   // IndexedDBCursor::Continue / Advance
     76   virtual void OnSuccess(const IndexedDBKey& key,
     77                          const IndexedDBKey& primary_key,
     78                          std::string* value);
     79 
     80   // IndexedDBCursor::PrefetchContinue
     81   virtual void OnSuccessWithPrefetch(
     82       const std::vector<IndexedDBKey>& keys,
     83       const std::vector<IndexedDBKey>& primary_keys,
     84       const std::vector<std::string>& values);
     85 
     86   // IndexedDBDatabase::Get (with key injection)
     87   virtual void OnSuccess(std::string* data,
     88                          const IndexedDBKey& key,
     89                          const IndexedDBKeyPath& key_path);
     90 
     91   // IndexedDBDatabase::Get
     92   virtual void OnSuccess(std::string* value);
     93 
     94   // IndexedDBDatabase::Put / IndexedDBCursor::Update
     95   virtual void OnSuccess(const IndexedDBKey& value);
     96 
     97   // IndexedDBDatabase::Count
     98   virtual void OnSuccess(int64 value);
     99 
    100   // IndexedDBDatabase::Delete
    101   // IndexedDBCursor::Continue / Advance (when complete)
    102   virtual void OnSuccess();
    103 
    104  protected:
    105   virtual ~IndexedDBCallbacks();
    106 
    107  private:
    108   friend class base::RefCounted<IndexedDBCallbacks>;
    109 
    110   // Originally from IndexedDBCallbacks:
    111   scoped_refptr<IndexedDBDispatcherHost> dispatcher_host_;
    112   int32 ipc_callbacks_id_;
    113   int32 ipc_thread_id_;
    114 
    115   // IndexedDBCursor callbacks ------------------------
    116   int32 ipc_cursor_id_;
    117 
    118   // IndexedDBDatabase callbacks ------------------------
    119   int64 host_transaction_id_;
    120   GURL origin_url_;
    121   int32 ipc_database_id_;
    122   int32 ipc_database_callbacks_id_;
    123 };
    124 
    125 }  // namespace content
    126 
    127 #endif  // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_CALLBACKS_H_
    128