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_PEPPER_HOST_GLOBALS_H_
6#define CONTENT_RENDERER_PEPPER_HOST_GLOBALS_H_
7
8#include "base/compiler_specific.h"
9#include "content/renderer/pepper/host_var_tracker.h"
10#include "ppapi/shared_impl/callback_tracker.h"
11#include "ppapi/shared_impl/ppapi_globals.h"
12#include "ppapi/shared_impl/resource_tracker.h"
13#include "ppapi/shared_impl/var_tracker.h"
14
15namespace content {
16
17class PepperPluginInstanceImpl;
18class PluginModule;
19
20class HostGlobals : public ppapi::PpapiGlobals {
21 public:
22  HostGlobals();
23  virtual ~HostGlobals();
24
25  // Getter for the global singleton. Generally, you should use
26  // PpapiGlobals::Get() when possible. Use this only when you need some
27  // host-specific functionality.
28  inline static HostGlobals* Get() {
29    DCHECK(PpapiGlobals::Get()->IsHostGlobals());
30    return static_cast<HostGlobals*>(PpapiGlobals::Get());
31  }
32
33  // PpapiGlobals implementation.
34  virtual ppapi::ResourceTracker* GetResourceTracker() OVERRIDE;
35  virtual ppapi::VarTracker* GetVarTracker() OVERRIDE;
36  virtual ppapi::CallbackTracker* GetCallbackTrackerForInstance(
37      PP_Instance instance) OVERRIDE;
38  virtual ppapi::thunk::PPB_Instance_API* GetInstanceAPI(PP_Instance instance)
39      OVERRIDE;
40  virtual ppapi::thunk::ResourceCreationAPI* GetResourceCreationAPI(
41      PP_Instance instance) OVERRIDE;
42  virtual PP_Module GetModuleForInstance(PP_Instance instance) OVERRIDE;
43  virtual std::string GetCmdLine() OVERRIDE;
44  virtual void PreCacheFontForFlash(const void* logfontw) OVERRIDE;
45  virtual void LogWithSource(PP_Instance instance,
46                             PP_LogLevel level,
47                             const std::string& source,
48                             const std::string& value) OVERRIDE;
49  virtual void BroadcastLogWithSource(PP_Module module,
50                                      PP_LogLevel level,
51                                      const std::string& source,
52                                      const std::string& value) OVERRIDE;
53  virtual ppapi::MessageLoopShared* GetCurrentMessageLoop() OVERRIDE;
54  virtual base::TaskRunner* GetFileTaskRunner() OVERRIDE;
55
56  HostVarTracker* host_var_tracker() { return &host_var_tracker_; }
57
58  // PP_Modules ----------------------------------------------------------------
59
60  // Adds a new plugin module to the list of tracked module, and returns a new
61  // module handle to identify it.
62  PP_Module AddModule(PluginModule* module);
63
64  // Called when a plugin modulde was deleted and should no longer be tracked.
65  // The given handle should be one generated by AddModule.
66  void ModuleDeleted(PP_Module module);
67
68  // Returns a pointer to the plugin modulde object associated with the given
69  // modulde handle. The return value will be NULL if the handle is invalid.
70  PluginModule* GetModule(PP_Module module);
71
72  // PP_Instances --------------------------------------------------------------
73
74  // Adds a new plugin instance to the list of tracked instances, and returns a
75  // new instance handle to identify it.
76  PP_Instance AddInstance(PepperPluginInstanceImpl* instance);
77
78  // Called when a plugin instance was deleted and should no longer be tracked.
79  // The given handle should be one generated by AddInstance.
80  void InstanceDeleted(PP_Instance instance);
81
82  void InstanceCrashed(PP_Instance instance);
83
84  // Returns a pointer to the plugin instance object associated with the given
85  // instance handle. The return value will be NULL if the handle is invalid or
86  // if the instance has crashed.
87  PepperPluginInstanceImpl* GetInstance(PP_Instance instance);
88
89 private:
90  // PpapiGlobals overrides.
91  virtual bool IsHostGlobals() const OVERRIDE;
92
93  static HostGlobals* host_globals_;
94
95  ppapi::ResourceTracker resource_tracker_;
96  HostVarTracker host_var_tracker_;
97
98  // Tracks all live instances and their associated object.
99  typedef std::map<PP_Instance, PepperPluginInstanceImpl*> InstanceMap;
100  InstanceMap instance_map_;
101
102  // Tracks all live modules. The pointers are non-owning, the PluginModule
103  // destructor will notify us when the module is deleted.
104  typedef std::map<PP_Module, PluginModule*> ModuleMap;
105  ModuleMap module_map_;
106
107  DISALLOW_COPY_AND_ASSIGN(HostGlobals);
108};
109
110}  // namespace content
111
112#endif  // CONTENT_RENDERER_PEPPER_HOST_GLOBALS_H_
113