1 // Copyright 2013 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 "chrome/browser/media_galleries/linux/mtp_device_task_helper_map_service.h" 6 7 #include "base/logging.h" 8 #include "base/stl_util.h" 9 #include "chrome/browser/media_galleries/linux/mtp_device_task_helper.h" 10 #include "content/public/browser/browser_thread.h" 11 12 namespace { 13 14 base::LazyInstance<MTPDeviceTaskHelperMapService> 15 g_mtp_device_task_helper_map_service = LAZY_INSTANCE_INITIALIZER; 16 17 } // namespace 18 19 // static 20 MTPDeviceTaskHelperMapService* MTPDeviceTaskHelperMapService::GetInstance() { 21 return g_mtp_device_task_helper_map_service.Pointer(); 22 } 23 24 MTPDeviceTaskHelper* MTPDeviceTaskHelperMapService::CreateDeviceTaskHelper( 25 const std::string& storage_name) { 26 DCHECK_CURRENTLY_ON(content::BrowserThread::UI); 27 DCHECK(!storage_name.empty()); 28 DCHECK(!ContainsKey(task_helper_map_, storage_name)); 29 MTPDeviceTaskHelper* task_helper = new MTPDeviceTaskHelper(); 30 task_helper_map_[storage_name] = task_helper; 31 return task_helper; 32 } 33 34 void MTPDeviceTaskHelperMapService::DestroyDeviceTaskHelper( 35 const std::string& storage_name) { 36 DCHECK_CURRENTLY_ON(content::BrowserThread::UI); 37 TaskHelperMap::iterator it = task_helper_map_.find(storage_name); 38 if (it == task_helper_map_.end()) 39 return; 40 delete it->second; 41 task_helper_map_.erase(it); 42 } 43 44 MTPDeviceTaskHelper* MTPDeviceTaskHelperMapService::GetDeviceTaskHelper( 45 const std::string& storage_name) { 46 DCHECK_CURRENTLY_ON(content::BrowserThread::UI); 47 DCHECK(!storage_name.empty()); 48 TaskHelperMap::const_iterator it = task_helper_map_.find(storage_name); 49 return (it != task_helper_map_.end()) ? it->second : NULL; 50 } 51 52 MTPDeviceTaskHelperMapService::MTPDeviceTaskHelperMapService() { 53 } 54 55 MTPDeviceTaskHelperMapService::~MTPDeviceTaskHelperMapService() { 56 } 57
