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_RENDERER_NPAPI_PLUGIN_CHANNEL_HOST_H_ 6 #define CONTENT_RENDERER_NPAPI_PLUGIN_CHANNEL_HOST_H_ 7 8 #include "base/containers/hash_tables.h" 9 #include "content/child/npapi/np_channel_base.h" 10 #include "ipc/ipc_channel_handle.h" 11 12 namespace content { 13 class NPObjectBase; 14 15 // Encapsulates an IPC channel between the renderer and one plugin process. 16 // On the plugin side there's a corresponding PluginChannel. 17 class PluginChannelHost : public NPChannelBase { 18 public: 19 #if defined(OS_MACOSX) 20 // TODO(shess): Debugging for http://crbug.com/97285 . See comment 21 // in plugin_channel_host.cc. 22 static bool* GetRemoveTrackingFlag(); 23 #endif 24 static PluginChannelHost* GetPluginChannelHost( 25 const IPC::ChannelHandle& channel_handle, 26 base::MessageLoopProxy* ipc_message_loop); 27 28 virtual bool Init(base::MessageLoopProxy* ipc_message_loop, 29 bool create_pipe_now, 30 base::WaitableEvent* shutdown_event) OVERRIDE; 31 32 virtual int GenerateRouteID() OVERRIDE; 33 34 void AddRoute(int route_id, IPC::Listener* listener, 35 NPObjectBase* npobject); 36 void RemoveRoute(int route_id); 37 38 // NPChannelBase override: 39 virtual bool Send(IPC::Message* msg) OVERRIDE; 40 41 // IPC::Listener override 42 virtual void OnChannelError() OVERRIDE; 43 Broadcast(IPC::Message * message)44 static void Broadcast(IPC::Message* message) { 45 NPChannelBase::Broadcast(message); 46 } 47 expecting_shutdown()48 bool expecting_shutdown() { return expecting_shutdown_; } 49 50 private: 51 // Called on the render thread 52 PluginChannelHost(); 53 virtual ~PluginChannelHost(); 54 ClassFactory()55 static NPChannelBase* ClassFactory() { return new PluginChannelHost(); } 56 57 virtual bool OnControlMessageReceived(const IPC::Message& message) OVERRIDE; 58 void OnSetException(const std::string& message); 59 void OnPluginShuttingDown(); 60 61 // Keep track of all the registered WebPluginDelegeProxies to 62 // inform about OnChannelError 63 typedef base::hash_map<int, IPC::Listener*> ProxyMap; 64 ProxyMap proxies_; 65 66 // True if we are expecting the plugin process to go away - in which case, 67 // don't treat it as a crash. 68 bool expecting_shutdown_; 69 70 DISALLOW_COPY_AND_ASSIGN(PluginChannelHost); 71 }; 72 73 } // namespace content 74 75 #endif // CONTENT_RENDERER_NPAPI_PLUGIN_CHANNEL_HOST_H_ 76