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      1 /*
      2  * Copyright (C) 2013 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 DatabaseClient_h
     32 #define DatabaseClient_h
     33 
     34 #include "core/page/Page.h"
     35 #include "core/workers/WorkerClients.h"
     36 #include "platform/heap/Handle.h"
     37 #include "wtf/Forward.h"
     38 
     39 namespace WebCore {
     40 
     41 class Database;
     42 class ExecutionContext;
     43 class InspectorDatabaseAgent;
     44 class WorkerClients;
     45 
     46 class GC_PLUGIN_IGNORE("http://crbug.com/367712") DatabaseClient;
     47 class DatabaseClient : public WillBeHeapSupplement<Page>, public WillBeHeapSupplement<WorkerClients> {
     48     WTF_MAKE_NONCOPYABLE(DatabaseClient);
     49 public:
     50     DatabaseClient();
     51     virtual ~DatabaseClient() { }
     52 
     53     virtual bool allowDatabase(ExecutionContext*, const String& name, const String& displayName, unsigned long estimatedSize) = 0;
     54 
     55     void didOpenDatabase(PassRefPtrWillBeRawPtr<Database>, const String& domain, const String& name, const String& version);
     56 
     57     static DatabaseClient* from(ExecutionContext*);
     58     static const char* supplementName();
     59 
     60     void createInspectorAgentFor(Page*);
     61 
     62 private:
     63     InspectorDatabaseAgent* m_inspectorAgent;
     64 };
     65 
     66 void provideDatabaseClientTo(Page&, PassOwnPtrWillBeRawPtr<DatabaseClient>);
     67 void provideDatabaseClientToWorker(WorkerClients*, PassOwnPtrWillBeRawPtr<DatabaseClient>);
     68 
     69 } // namespace WebCore
     70 
     71 #endif // DatabaseClient_h
     72