ppapi/cpp/ppp_entrypoints.cc

   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 // When used in conjunction with module_embedder.h, this gives a default
   6 // implementation of ppp.h for clients of the ppapi C++ interface.  Most
   7 // plugin implementors can export their derivation of Module by just
   8 // linking to this implementation.
   9
  10 #include "ppapi/c/ppb.h"
  11 #include "ppapi/c/ppp.h"
  12 #include "ppapi/c/pp_errors.h"
  13 #include "ppapi/cpp/module.h"
  14 #include "ppapi/cpp/module_embedder.h"
  15
  16 static pp::Module* g_module_singleton = NULL;
  17 static PP_GetInterface_Func g_broker_get_interface = NULL;
  18
  19 namespace pp {
  20
  21 // Give a default implementation of Module::Get().  See module.cc for details.
  22 pp::Module* Module::Get() {
  23   return g_module_singleton;
  24 }
  25
  26 void SetBrokerGetInterfaceFunc(PP_GetInterface_Func broker_get_interface) {
  27   g_broker_get_interface = broker_get_interface;
  28 }
  29
  30 }  // namespace pp
  31
  32 // Global PPP functions --------------------------------------------------------
  33
  34 PP_EXPORT int32_t PPP_InitializeModule(PP_Module module_id,
  35                                        PPB_GetInterface get_browser_interface) {
  36   pp::Module* module = pp::CreateModule();
  37   if (!module)
  38     return PP_ERROR_FAILED;
  39
  40   if (!module->InternalInit(module_id, get_browser_interface)) {
  41     delete module;
  42     return PP_ERROR_FAILED;
  43   }
  44   g_module_singleton = module;
  45   return PP_OK;
  46 }
  47
  48 PP_EXPORT void PPP_ShutdownModule() {
  49   delete g_module_singleton;
  50   g_module_singleton = NULL;
  51 }
  52
  53 PP_EXPORT const void* PPP_GetInterface(const char* interface_name) {
  54   if (g_module_singleton)
  55     return g_module_singleton->GetPluginInterface(interface_name);
  56   if (g_broker_get_interface)
  57     return g_broker_get_interface(interface_name);
  58   return NULL;
  59 }