webkit/plugins/ppapi/ppapi_interface_factory.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/ppapi_interface_factory.h"
   6
   7 #include <algorithm>
   8
   9 #include "base/logging.h"
  10
  11 namespace webkit {
  12 namespace ppapi {
  13
  14 base::LazyInstance<PpapiInterfaceFactoryManager>
  15     g_ppapi_interface_factory_manager = LAZY_INSTANCE_INITIALIZER;
  16
  17 PpapiInterfaceFactoryManager::PpapiInterfaceFactoryManager() {
  18 }
  19
  20 PpapiInterfaceFactoryManager::~PpapiInterfaceFactoryManager() {
  21 }
  22
  23 void PpapiInterfaceFactoryManager::RegisterFactory(InterfaceFactory* factory) {
  24   DCHECK(std::find(interface_factory_list_.begin(),
  25                    interface_factory_list_.end(), factory) ==
  26          interface_factory_list_.end());
  27   interface_factory_list_.push_back(factory);
  28 }
  29
  30 void PpapiInterfaceFactoryManager::UnregisterFactory(
  31     InterfaceFactory* factory) {
  32   FactoryList::iterator index =
  33       std::find(interface_factory_list_.begin(), interface_factory_list_.end(),
  34                 factory);
  35   if (index != interface_factory_list_.end())
  36     interface_factory_list_.erase(index);
  37 }
  38
  39 const void* PpapiInterfaceFactoryManager::GetInterface(
  40     const std::string& interface_name) {
  41   FactoryList::iterator index;
  42
  43   const void* ppapi_interface = NULL;
  44
  45   for (index = interface_factory_list_.begin();
  46        index != interface_factory_list_.end();
  47        ++index) {
  48     ppapi_interface = (*index)(interface_name);
  49     if (ppapi_interface)
  50       break;
  51   }
  52   return ppapi_interface;
  53 }
  54
  55 // static
  56 PpapiInterfaceFactoryManager* PpapiInterfaceFactoryManager::GetInstance() {
  57   return &g_ppapi_interface_factory_manager.Get();
  58 }
  59
  60 }  // namespace ppapi
  61 }  // namespace webkit
  62