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      1 /*
      2  * Copyright (C) 2010 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
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     14  *     its contributors may be used to endorse or promote products derived
     15  *     from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef InspectorDatabaseAgent_h
     30 #define InspectorDatabaseAgent_h
     31 
     32 #include "PlatformString.h"
     33 #include <wtf/HashMap.h>
     34 #include <wtf/PassOwnPtr.h>
     35 
     36 namespace WebCore {
     37 
     38 class Database;
     39 class InspectorArray;
     40 class InspectorDatabaseResource;
     41 class InspectorFrontend;
     42 class InspectorState;
     43 class InstrumentingAgents;
     44 
     45 typedef String ErrorString;
     46 
     47 class InspectorDatabaseAgent {
     48 public:
     49     class FrontendProvider;
     50 
     51     static PassOwnPtr<InspectorDatabaseAgent> create(InstrumentingAgents* instrumentingAgents, InspectorState* state)
     52     {
     53         return adoptPtr(new InspectorDatabaseAgent(instrumentingAgents, state));
     54     }
     55     ~InspectorDatabaseAgent();
     56 
     57     void setFrontend(InspectorFrontend*);
     58     void clearFrontend();
     59 
     60     void clearResources();
     61     void restore();
     62 
     63     // Called from the front-end.
     64     void enable(ErrorString*);
     65     void disable(ErrorString*);
     66     void getDatabaseTableNames(ErrorString*, int databaseId, RefPtr<InspectorArray>* names);
     67     void executeSQL(ErrorString*, int databaseId, const String& query, bool* success, int* transactionId);
     68 
     69     // Called from the injected script.
     70     int databaseId(Database*);
     71 
     72     void didOpenDatabase(PassRefPtr<Database>, const String& domain, const String& name, const String& version);
     73 private:
     74     explicit InspectorDatabaseAgent(InstrumentingAgents*, InspectorState*);
     75 
     76     Database* databaseForId(int databaseId);
     77     InspectorDatabaseResource* findByFileName(const String& fileName);
     78 
     79     InstrumentingAgents* m_instrumentingAgents;
     80     InspectorState* m_inspectorState;
     81     typedef HashMap<int, RefPtr<InspectorDatabaseResource> > DatabaseResourcesMap;
     82     DatabaseResourcesMap m_resources;
     83     RefPtr<FrontendProvider> m_frontendProvider;
     84     bool m_enabled;
     85 };
     86 
     87 } // namespace WebCore
     88 
     89 #endif // !defined(InspectorDatabaseAgent_h)
     90