browser_ppapi_host_impl.h revision 1e9bf3e0803691d0a228da41fc608347b6db4340 
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 in_process,
40      bool external_plugin);
41  virtual ~BrowserPpapiHostImpl();
42
43  // BrowserPpapiHost.
44  virtual ppapi::host::PpapiHost* GetPpapiHost() OVERRIDE;
45  virtual base::ProcessHandle GetPluginProcessHandle() const OVERRIDE;
46  virtual bool IsValidInstance(PP_Instance instance) const OVERRIDE;
47  virtual bool GetRenderViewIDsForInstance(PP_Instance instance,
48                                           int* render_process_id,
49                                           int* render_view_id) const OVERRIDE;
50  virtual const std::string& GetPluginName() OVERRIDE;
51  virtual const base::FilePath& GetPluginPath() OVERRIDE;
52  virtual const base::FilePath& GetProfileDataDirectory() OVERRIDE;
53  virtual GURL GetDocumentURLForInstance(PP_Instance instance) OVERRIDE;
54  virtual GURL GetPluginURLForInstance(PP_Instance instance) OVERRIDE;
55
56  void set_plugin_process_handle(base::ProcessHandle handle) {
57    plugin_process_handle_ = handle;
58  }
59
60  bool in_process() const { return in_process_; }
61  bool external_plugin() const { return external_plugin_; }
62
63  // These two functions are notifications that an instance has been created
64  // or destroyed. They allow us to maintain a mapping of PP_Instance to data
65  // associated with the instance including view IDs in the browser process.
66  void AddInstance(PP_Instance instance,
67                   const PepperRendererInstanceData& instance_data);
68  void DeleteInstance(PP_Instance instance);
69
70  scoped_refptr<IPC::ChannelProxy::MessageFilter> message_filter() {
71    return message_filter_;
72  }
73
74  const scoped_refptr<SSLContextHelper>& ssl_context_helper() const {
75    return ssl_context_helper_;
76  }
77
78 private:
79  friend class BrowserPpapiHostTest;
80
81  // Implementing MessageFilter on BrowserPpapiHostImpl makes it ref-counted,
82  // preventing us from returning these to embedders without holding a
83  // reference. To avoid that, define a message filter object.
84  class HostMessageFilter : public IPC::ChannelProxy::MessageFilter {
85   public:
86    explicit HostMessageFilter(ppapi::host::PpapiHost* ppapi_host)
87        : ppapi_host_(ppapi_host) {}
88    // IPC::ChannelProxy::MessageFilter.
89    virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
90
91    void OnHostDestroyed();
92
93   private:
94    virtual ~HostMessageFilter() {}
95
96    ppapi::host::PpapiHost* ppapi_host_;
97  };
98
99  scoped_ptr<ppapi::host::PpapiHost> ppapi_host_;
100  base::ProcessHandle plugin_process_handle_;
101  std::string plugin_name_;
102  base::FilePath plugin_path_;
103  base::FilePath profile_data_directory_;
104
105  // If true, this refers to a plugin running in the renderer process.
106  bool in_process_;
107
108  // If true, this is an external plugin, i.e. created by the embedder using
109  // BrowserPpapiHost::CreateExternalPluginProcess.
110  bool external_plugin_;
111
112  scoped_refptr<SSLContextHelper> ssl_context_helper_;
113
114  // Tracks all PP_Instances in this plugin and associated renderer-related
115  // data.
116  typedef std::map<PP_Instance, PepperRendererInstanceData> InstanceMap;
117  InstanceMap instance_map_;
118
119  scoped_refptr<HostMessageFilter> message_filter_;
120
121  DISALLOW_COPY_AND_ASSIGN(BrowserPpapiHostImpl);
122};
123
124}  // namespace content
125
126#endif  // CONTENT_BROWSER_RENDERER_HOST_PEPPER_BROWSER_PPAPI_HOST_IMPL_H_
127