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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 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 CHROME_BROWSER_PPAPI_PLUGIN_PROCESS_HOST_H_ | 5 #ifndef CHROME_BROWSER_PPAPI_PLUGIN_PROCESS_HOST_H_ |
6 #define CHROME_BROWSER_PPAPI_PLUGIN_PROCESS_HOST_H_ | 6 #define CHROME_BROWSER_PPAPI_PLUGIN_PROCESS_HOST_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include <queue> | 9 // TODO(jam): remove this file when all files have been converted. |
10 | 10 #include "content/browser/ppapi_plugin_process_host.h" |
11 #include "base/basictypes.h" | |
12 #include "base/file_path.h" | |
13 #include "chrome/browser/browser_child_process_host.h" | |
14 | |
15 class PpapiPluginProcessHost : public BrowserChildProcessHost { | |
16 public: | |
17 class Client { | |
18 public: | |
19 // Gets the information about the renderer that's requesting the channel. | |
20 virtual void GetChannelInfo(base::ProcessHandle* renderer_handle, | |
21 int* renderer_id) = 0; | |
22 | |
23 // Called when the channel is asynchronously opened to the plugin or on | |
24 // error. On error, the parameters should be: | |
25 // base::kNullProcessHandle | |
26 // IPC::ChannelHandle() | |
27 virtual void OnChannelOpened(base::ProcessHandle plugin_process_handle, | |
28 const IPC::ChannelHandle& channel_handle) = 0; | |
29 }; | |
30 | |
31 // You must call init before doing anything else. | |
32 explicit PpapiPluginProcessHost(); | |
33 virtual ~PpapiPluginProcessHost(); | |
34 | |
35 // Actually launches the process with the given plugin path. Returns true | |
36 // on success (the process was spawned). | |
37 bool Init(const FilePath& path); | |
38 | |
39 // Opens a new channel to the plugin. The client will be notified when the | |
40 // channel is ready or if there's an error. | |
41 void OpenChannelToPlugin(Client* client); | |
42 | |
43 const FilePath& plugin_path() const { return plugin_path_; } | |
44 | |
45 // The client pointer must remain valid until its callback is issued. | |
46 | |
47 private: | |
48 | |
49 void RequestPluginChannel(Client* client); | |
50 | |
51 virtual bool CanShutdown(); | |
52 virtual void OnProcessLaunched(); | |
53 | |
54 virtual bool OnMessageReceived(const IPC::Message& msg); | |
55 virtual void OnChannelConnected(int32 peer_pid); | |
56 virtual void OnChannelError(); | |
57 | |
58 void CancelRequests(); | |
59 | |
60 // IPC message handlers. | |
61 void OnRendererPluginChannelCreated(const IPC::ChannelHandle& handle); | |
62 | |
63 // Channel requests that we are waiting to send to the plugin process once | |
64 // the channel is opened. | |
65 std::vector<Client*> pending_requests_; | |
66 | |
67 // Channel requests that we have already sent to the plugin process, but | |
68 // haven't heard back about yet. | |
69 std::queue<Client*> sent_requests_; | |
70 | |
71 // Path to the plugin library. | |
72 FilePath plugin_path_; | |
73 | |
74 DISALLOW_COPY_AND_ASSIGN(PpapiPluginProcessHost); | |
75 }; | |
76 | 11 |
77 #endif // CHROME_BROWSER_PPAPI_PLUGIN_PROCESS_HOST_H_ | 12 #endif // CHROME_BROWSER_PPAPI_PLUGIN_PROCESS_HOST_H_ |
78 | 13 |
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