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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 
create(InstrumentingAgents * instrumentingAgents,InspectorState * state)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