content/renderer/pepper/host_globals.h

   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
  15 namespace content {
  16
  17 class PepperPluginInstanceImpl;
  18 class PluginModule;
  19
  20 class 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(
  39       PP_Instance instance) 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() {
  57     return &host_var_tracker_;
  58   }
  59
  60   // PP_Modules ----------------------------------------------------------------
  61
  62   // Adds a new plugin module to the list of tracked module, and returns a new
  63   // module handle to identify it.
  64   PP_Module AddModule(PluginModule* module);
  65
  66   // Called when a plugin modulde was deleted and should no longer be tracked.
  67   // The given handle should be one generated by AddModule.
  68   void ModuleDeleted(PP_Module module);
  69
  70   // Returns a pointer to the plugin modulde object associated with the given
  71   // modulde handle. The return value will be NULL if the handle is invalid.
  72   PluginModule* GetModule(PP_Module module);
  73
  74   // PP_Instances --------------------------------------------------------------
  75
  76   // Adds a new plugin instance to the list of tracked instances, and returns a
  77   // new instance handle to identify it.
  78   PP_Instance AddInstance(PepperPluginInstanceImpl* instance);
  79
  80   // Called when a plugin instance was deleted and should no longer be tracked.
  81   // The given handle should be one generated by AddInstance.
  82   void InstanceDeleted(PP_Instance instance);
  83
  84   void InstanceCrashed(PP_Instance instance);
  85
  86   // Returns a pointer to the plugin instance object associated with the given
  87   // instance handle. The return value will be NULL if the handle is invalid or
  88   // if the instance has crashed.
  89   PepperPluginInstanceImpl* GetInstance(PP_Instance instance);
  90
  91  private:
  92   // PpapiGlobals overrides.
  93   virtual bool IsHostGlobals() const OVERRIDE;
  94
  95   static HostGlobals* host_globals_;
  96
  97   ppapi::ResourceTracker resource_tracker_;
  98   HostVarTracker host_var_tracker_;
  99
 100   // Tracks all live instances and their associated object.
 101   typedef std::map<PP_Instance, PepperPluginInstanceImpl*> InstanceMap;
 102   InstanceMap instance_map_;
 103
 104   // Tracks all live modules. The pointers are non-owning, the PluginModule
 105   // destructor will notify us when the module is deleted.
 106   typedef std::map<PP_Module, PluginModule*> ModuleMap;
 107   ModuleMap module_map_;
 108
 109   DISALLOW_COPY_AND_ASSIGN(HostGlobals);
 110 };
 111
 112 }  // namespace content
 113
 114 #endif   // CONTENT_RENDERER_PEPPER_HOST_GLOBALS_H_