browser_ppapi_host_impl.h revision 424c4d7b64af9d0d8fd9624f381f469654d5e3d2 
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_BROWSER_RENDERER_HOST_PEPPER_BROWSER_PPAPI_HOST_IMPL_H_
6#define CONTENT_BROWSER_RENDERER_HOST_PEPPER_BROWSER_PPAPI_HOST_IMPL_H_
7
8#include <map>
9#include <string>
10
11#include "base/basictypes.h"
12#include "base/compiler_specific.h"
13#include "base/files/file_path.h"
14#include "base/memory/ref_counted.h"
15#include "content/browser/renderer_host/pepper/content_browser_pepper_host_factory.h"
16#include "content/browser/renderer_host/pepper/ssl_context_helper.h"
17#include "content/common/content_export.h"
18#include "content/common/pepper_renderer_instance_data.h"
19#include "content/public/browser/browser_ppapi_host.h"
20#include "content/public/common/process_type.h"
21#include "ipc/ipc_channel_proxy.h"
22#include "ppapi/host/ppapi_host.h"
23
24namespace content {
25
26class CONTENT_EXPORT BrowserPpapiHostImpl : public BrowserPpapiHost {
27 public:
28  // The creator is responsible for calling set_plugin_process_handle as soon
29  // as it is known (we start the process asynchronously so it won't be known
30  // when this object is created).
31  // |external_plugin| signfies that this is a proxy created for an embedder's
32  // plugin, i.e. using BrowserPpapiHost::CreateExternalPluginProcess.
33  BrowserPpapiHostImpl(
34      IPC::Sender* sender,
35      const ppapi::PpapiPermissions& permissions,
36      const std::string& plugin_name,
37      const base::FilePath& plugin_path,
38      const base::FilePath& profile_data_directory,
39      bool external_plugin);
40  virtual ~BrowserPpapiHostImpl();
41
42  // BrowserPpapiHost.
43  virtual ppapi::host::PpapiHost* GetPpapiHost() OVERRIDE;
44  virtual base::ProcessHandle GetPluginProcessHandle() const OVERRIDE;
45  virtual bool IsValidInstance(PP_Instance instance) const OVERRIDE;
46  virtual bool GetRenderViewIDsForInstance(PP_Instance instance,
47                                           int* render_process_id,
48                                           int* render_view_id) const OVERRIDE;
49  virtual const std::string& GetPluginName() OVERRIDE;
50  virtual const base::FilePath& GetPluginPath() OVERRIDE;
51  virtual const base::FilePath& GetProfileDataDirectory() OVERRIDE;
52  virtual GURL GetDocumentURLForInstance(PP_Instance instance) OVERRIDE;
53  virtual GURL GetPluginURLForInstance(PP_Instance instance) OVERRIDE;
54
55  void set_plugin_process_handle(base::ProcessHandle handle) {
56    plugin_process_handle_ = handle;
57  }
58
59  bool external_plugin() { return external_plugin_; }
60
61  // These two functions are notifications that an instance has been created
62  // or destroyed. They allow us to maintain a mapping of PP_Instance to data
63  // associated with the instance including view IDs in the browser process.
64  void AddInstance(PP_Instance instance,
65                   const PepperRendererInstanceData& instance_data);
66  void DeleteInstance(PP_Instance instance);
67
68  scoped_refptr<IPC::ChannelProxy::MessageFilter> message_filter() {
69    return message_filter_;
70  }
71
72  const scoped_refptr<SSLContextHelper>& ssl_context_helper() const {
73    return ssl_context_helper_;
74  }
75
76 private:
77  friend class BrowserPpapiHostTest;
78
79  // Implementing MessageFilter on BrowserPpapiHostImpl makes it ref-counted,
80  // preventing us from returning these to embedders without holding a
81  // reference. To avoid that, define a message filter object.
82  class HostMessageFilter : public IPC::ChannelProxy::MessageFilter {
83   public:
84    explicit HostMessageFilter(ppapi::host::PpapiHost* ppapi_host)
85        : ppapi_host_(ppapi_host) {}
86    // IPC::ChannelProxy::MessageFilter.
87    virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
88
89    void OnHostDestroyed();
90
91   private:
92    virtual ~HostMessageFilter() {}
93
94    ppapi::host::PpapiHost* ppapi_host_;
95  };
96
97  scoped_ptr<ppapi::host::PpapiHost> ppapi_host_;
98  base::ProcessHandle plugin_process_handle_;
99  std::string plugin_name_;
100  base::FilePath plugin_path_;
101  base::FilePath profile_data_directory_;
102
103  // If true, this is an external plugin, i.e. created by the embedder using
104  // BrowserPpapiHost::CreateExternalPluginProcess.
105  bool external_plugin_;
106
107  scoped_refptr<SSLContextHelper> ssl_context_helper_;
108
109  // Tracks all PP_Instances in this plugin and associated renderer-related
110  // data.
111  typedef std::map<PP_Instance, PepperRendererInstanceData> InstanceMap;
112  InstanceMap instance_map_;
113
114  scoped_refptr<HostMessageFilter> message_filter_;
115
116  DISALLOW_COPY_AND_ASSIGN(BrowserPpapiHostImpl);
117};
118
119}  // namespace content
120
121#endif  // CONTENT_BROWSER_RENDERER_HOST_PEPPER_BROWSER_PPAPI_HOST_IMPL_H_
122