webkit/plugins/ppapi/ppb_proxy_impl.cc

   1 // Copyright (c) 2011 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 #include "webkit/plugins/ppapi/ppb_proxy_impl.h"
   6
   7 #include "ppapi/c/private/ppb_proxy_private.h"
   8 #include "ppapi/thunk/enter.h"
   9 #include "ppapi/thunk/ppb_image_data_api.h"
  10 #include "webkit/plugins/ppapi/host_globals.h"
  11 #include "webkit/plugins/ppapi/plugin_module.h"
  12 #include "webkit/plugins/ppapi/ppapi_plugin_instance.h"
  13 #include "webkit/plugins/ppapi/ppb_url_loader_impl.h"
  14
  15 using ppapi::PpapiGlobals;
  16 using ppapi::thunk::EnterResource;
  17 using ppapi::thunk::PPB_URLLoader_API;
  18
  19 namespace webkit {
  20 namespace ppapi {
  21
  22 namespace {
  23
  24 void PluginCrashed(PP_Module module) {
  25   PluginModule* plugin_module = HostGlobals::Get()->GetModule(module);
  26   if (plugin_module)
  27     plugin_module->PluginCrashed();
  28 }
  29
  30 PP_Instance GetInstanceForResource(PP_Resource resource) {
  31   ::ppapi::Resource* obj =
  32       PpapiGlobals::Get()->GetResourceTracker()->GetResource(resource);
  33   if (!obj)
  34     return 0;
  35   return obj->pp_instance();
  36 }
  37
  38 void SetReserveInstanceIDCallback(PP_Module module,
  39                                   PP_Bool (*reserve)(PP_Module, PP_Instance)) {
  40   PluginModule* plugin_module = HostGlobals::Get()->GetModule(module);
  41   if (plugin_module)
  42     plugin_module->SetReserveInstanceIDCallback(reserve);
  43 }
  44
  45 int32_t GetURLLoaderBufferedBytes(PP_Resource url_loader) {
  46   EnterResource<PPB_URLLoader_API> enter(url_loader, true);
  47   if (enter.succeeded())
  48     return static_cast<PPB_URLLoader_Impl*>(enter.object())->buffer_size();
  49   return 0;
  50 }
  51
  52 void AddRefModule(PP_Module module) {
  53   PluginModule* plugin_module = HostGlobals::Get()->GetModule(module);
  54   if (plugin_module)
  55     plugin_module->AddRef();
  56 }
  57
  58 void ReleaseModule(PP_Module module) {
  59   PluginModule* plugin_module = HostGlobals::Get()->GetModule(module);
  60   if (plugin_module)
  61     plugin_module->Release();
  62 }
  63
  64 PP_Bool IsInModuleDestructor(PP_Module module) {
  65   PluginModule* plugin_module = HostGlobals::Get()->GetModule(module);
  66   if (plugin_module)
  67     return PP_FromBool(plugin_module->is_in_destructor());
  68   return PP_FALSE;
  69 }
  70
  71 const PPB_Proxy_Private ppb_proxy = {
  72   &PluginCrashed,
  73   &GetInstanceForResource,
  74   &SetReserveInstanceIDCallback,
  75   &GetURLLoaderBufferedBytes,
  76   &AddRefModule,
  77   &ReleaseModule,
  78   &IsInModuleDestructor
  79 };
  80
  81 }  // namespace
  82
  83 // static
  84 const PPB_Proxy_Private* PPB_Proxy_Impl::GetInterface() {
  85   return &ppb_proxy;
  86 }
  87
  88 }  // namespace ppapi
  89 }  // namespace webkit