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      1 /*
      2  * Copyright (C) 2010 Apple 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  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
     14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
     17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     23  * THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef PluginProcessConnection_h
     27 #define PluginProcessConnection_h
     28 
     29 #if ENABLE(PLUGIN_PROCESS)
     30 
     31 #include "Connection.h"
     32 #include "Plugin.h"
     33 #include <wtf/RefCounted.h>
     34 #include <wtf/text/WTFString.h>
     35 
     36 // A CoreIPC connection to a plug-in process.
     37 
     38 namespace WebKit {
     39 
     40 class NPRemoteObjectMap;
     41 class PluginProcessConnectionManager;
     42 class PluginProxy;
     43 
     44 class PluginProcessConnection : public RefCounted<PluginProcessConnection>, CoreIPC::Connection::Client {
     45 public:
     46     static PassRefPtr<PluginProcessConnection> create(PluginProcessConnectionManager* pluginProcessConnectionManager, const String& pluginPath, CoreIPC::Connection::Identifier connectionIdentifier)
     47     {
     48         return adoptRef(new PluginProcessConnection(pluginProcessConnectionManager, pluginPath, connectionIdentifier));
     49     }
     50     ~PluginProcessConnection();
     51 
     52     const String& pluginPath() const { return m_pluginPath; }
     53 
     54     CoreIPC::Connection* connection() const { return m_connection.get(); }
     55 
     56     void addPluginProxy(PluginProxy*);
     57     void removePluginProxy(PluginProxy*);
     58 
     59     NPRemoteObjectMap* npRemoteObjectMap() const { return m_npRemoteObjectMap.get(); }
     60 
     61 private:
     62     PluginProcessConnection(PluginProcessConnectionManager* pluginProcessConnectionManager, const String& pluginPath, CoreIPC::Connection::Identifier connectionIdentifier);
     63 
     64     // CoreIPC::Connection::Client
     65     virtual void didReceiveMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*);
     66     virtual CoreIPC::SyncReplyMode didReceiveSyncMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*, CoreIPC::ArgumentEncoder*);
     67     virtual void didClose(CoreIPC::Connection*);
     68     virtual void didReceiveInvalidMessage(CoreIPC::Connection*, CoreIPC::MessageID);
     69     virtual void syncMessageSendTimedOut(CoreIPC::Connection*);
     70 
     71     PluginProcessConnectionManager* m_pluginProcessConnectionManager;
     72     String m_pluginPath;
     73 
     74     // The connection from the web process to the plug-in process.
     75     RefPtr<CoreIPC::Connection> m_connection;
     76 
     77     // The plug-ins. We use a weak reference to the plug-in proxies because the plug-in view holds the strong reference.
     78     HashMap<uint64_t, PluginProxy*> m_plugins;
     79 
     80     RefPtr<NPRemoteObjectMap> m_npRemoteObjectMap;
     81 };
     82 
     83 } // namespace WebKit
     84 
     85 #endif // ENABLE(PLUGIN_PROCESS)
     86 
     87 #endif // PluginProcessConnection_h
     88