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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CONTENT_PLUGIN_PLUGIN_CHANNEL_BASE_H_ | 5 #ifndef CONTENT_PLUGIN_PLUGIN_CHANNEL_BASE_H_ |
6 #define CONTENT_PLUGIN_PLUGIN_CHANNEL_BASE_H_ | 6 #define CONTENT_PLUGIN_PLUGIN_CHANNEL_BASE_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include <string> | 9 #include <string> |
10 | 10 |
11 #include "base/basictypes.h" | 11 #include "base/basictypes.h" |
12 #include "base/hash_tables.h" | 12 #include "base/hash_tables.h" |
13 #include "base/memory/ref_counted.h" | 13 #include "base/memory/ref_counted.h" |
14 #include "base/memory/scoped_ptr.h" | 14 #include "base/memory/scoped_ptr.h" |
15 #include "base/message_loop.h" | |
16 #include "content/common/message_router.h" | 15 #include "content/common/message_router.h" |
17 #include "content/plugin/npobject_base.h" | 16 #include "content/plugin/npobject_base.h" |
18 #include "ipc/ipc_channel_handle.h" | 17 #include "ipc/ipc_channel_handle.h" |
19 #include "ipc/ipc_sync_channel.h" | 18 #include "ipc/ipc_sync_channel.h" |
20 #include "ui/gfx/native_widget_types.h" | 19 #include "ui/gfx/native_widget_types.h" |
21 | 20 |
| 21 namespace base { |
| 22 class MessageLoopProxy; |
| 23 } |
| 24 |
22 // Encapsulates an IPC channel between a renderer and a plugin process. | 25 // Encapsulates an IPC channel between a renderer and a plugin process. |
23 class PluginChannelBase : public IPC::Channel::Listener, | 26 class PluginChannelBase : public IPC::Channel::Listener, |
24 public IPC::Message::Sender, | 27 public IPC::Message::Sender, |
25 public base::RefCountedThreadSafe<PluginChannelBase> { | 28 public base::RefCountedThreadSafe<PluginChannelBase> { |
26 public: | 29 public: |
27 | 30 |
28 // WebPlugin[Delegate] call these on construction and destruction to setup | 31 // WebPlugin[Delegate] call these on construction and destruction to setup |
29 // the routing and manage lifetime of this object. This is also called by | 32 // the routing and manage lifetime of this object. This is also called by |
30 // NPObjectProxy and NPObjectStub. However the latter don't control the | 33 // NPObjectProxy and NPObjectStub. However the latter don't control the |
31 // lifetime of this object (by passing true for npobject) because we don't | 34 // lifetime of this object (by passing true for npobject) because we don't |
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70 | 73 |
71 virtual ~PluginChannelBase(); | 74 virtual ~PluginChannelBase(); |
72 | 75 |
73 // Returns a PluginChannelBase derived object for the given channel name. | 76 // Returns a PluginChannelBase derived object for the given channel name. |
74 // If an existing channel exists returns that object, otherwise creates a | 77 // If an existing channel exists returns that object, otherwise creates a |
75 // new one. Even though on creation the object is refcounted, each caller | 78 // new one. Even though on creation the object is refcounted, each caller |
76 // must still ref count the returned value. When there are no more routes | 79 // must still ref count the returned value. When there are no more routes |
77 // on the channel and its ref count is 0, the object deletes itself. | 80 // on the channel and its ref count is 0, the object deletes itself. |
78 static PluginChannelBase* GetChannel( | 81 static PluginChannelBase* GetChannel( |
79 const IPC::ChannelHandle& channel_handle, IPC::Channel::Mode mode, | 82 const IPC::ChannelHandle& channel_handle, IPC::Channel::Mode mode, |
80 PluginChannelFactory factory, MessageLoop* ipc_message_loop, | 83 PluginChannelFactory factory, base::MessageLoopProxy* ipc_message_loop, |
81 bool create_pipe_now); | 84 bool create_pipe_now); |
82 | 85 |
83 // Sends a message to all instances. | 86 // Sends a message to all instances. |
84 static void Broadcast(IPC::Message* message); | 87 static void Broadcast(IPC::Message* message); |
85 | 88 |
86 // Called on the worker thread | 89 // Called on the worker thread |
87 PluginChannelBase(); | 90 PluginChannelBase(); |
88 | 91 |
89 virtual void CleanUp() { } | 92 virtual void CleanUp() { } |
90 | 93 |
91 // Implemented by derived classes to handle control messages | 94 // Implemented by derived classes to handle control messages |
92 virtual bool OnControlMessageReceived(const IPC::Message& msg); | 95 virtual bool OnControlMessageReceived(const IPC::Message& msg); |
93 | 96 |
94 // IPC::Channel::Listener implementation: | 97 // IPC::Channel::Listener implementation: |
95 virtual bool OnMessageReceived(const IPC::Message& msg); | 98 virtual bool OnMessageReceived(const IPC::Message& msg); |
96 virtual void OnChannelConnected(int32 peer_pid); | 99 virtual void OnChannelConnected(int32 peer_pid); |
97 virtual void OnChannelError(); | 100 virtual void OnChannelError(); |
98 | 101 |
99 void set_send_unblocking_only_during_unblock_dispatch() { | 102 void set_send_unblocking_only_during_unblock_dispatch() { |
100 send_unblocking_only_during_unblock_dispatch_ = true; | 103 send_unblocking_only_during_unblock_dispatch_ = true; |
101 } | 104 } |
102 | 105 |
103 virtual bool Init(MessageLoop* ipc_message_loop, bool create_pipe_now); | 106 virtual bool Init(base::MessageLoopProxy* ipc_message_loop, |
| 107 bool create_pipe_now); |
104 | 108 |
105 scoped_ptr<IPC::SyncChannel> channel_; | 109 scoped_ptr<IPC::SyncChannel> channel_; |
106 | 110 |
107 private: | 111 private: |
108 IPC::Channel::Mode mode_; | 112 IPC::Channel::Mode mode_; |
109 IPC::ChannelHandle channel_handle_; | 113 IPC::ChannelHandle channel_handle_; |
110 int plugin_count_; | 114 int plugin_count_; |
111 int peer_pid_; | 115 int peer_pid_; |
112 | 116 |
113 // true when in the middle of a RemoveRoute call | 117 // true when in the middle of a RemoveRoute call |
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140 // renderer. We additionally have to do this for async messages from the | 144 // renderer. We additionally have to do this for async messages from the |
141 // renderer that have the unblock flag set, since they could be followed by a | 145 // renderer that have the unblock flag set, since they could be followed by a |
142 // sync message that won't get dispatched until the call to the renderer is | 146 // sync message that won't get dispatched until the call to the renderer is |
143 // complete. | 147 // complete. |
144 bool send_unblocking_only_during_unblock_dispatch_; | 148 bool send_unblocking_only_during_unblock_dispatch_; |
145 | 149 |
146 DISALLOW_COPY_AND_ASSIGN(PluginChannelBase); | 150 DISALLOW_COPY_AND_ASSIGN(PluginChannelBase); |
147 }; | 151 }; |
148 | 152 |
149 #endif // CONTENT_PLUGIN_PLUGIN_CHANNEL_BASE_H_ | 153 #endif // CONTENT_PLUGIN_PLUGIN_CHANNEL_BASE_H_ |
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