1 // Copyright (c) 2006-2008 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/automation/automation_provider_list.h" 6 7 #include <algorithm> 8 9 #include "base/logging.h" 10 #include "chrome/browser/automation/automation_provider.h" 11 12 AutomationProviderList* AutomationProviderList::instance_ = NULL; 13 14 AutomationProviderList::AutomationProviderList() { 15 } 16 17 AutomationProviderList::~AutomationProviderList() { 18 iterator iter = automation_providers_.begin(); 19 while (iter != automation_providers_.end()) { 20 (*iter)->Release(); 21 iter = automation_providers_.erase(iter); 22 } 23 instance_ = NULL; 24 } 25 26 bool AutomationProviderList::AddProvider(AutomationProvider* provider) { 27 provider->AddRef(); 28 automation_providers_.push_back(provider); 29 return true; 30 } 31 32 bool AutomationProviderList::RemoveProvider(AutomationProvider* provider) { 33 const iterator remove_provider = 34 find(automation_providers_.begin(), automation_providers_.end(), provider); 35 if (remove_provider != automation_providers_.end()) { 36 (*remove_provider)->Release(); 37 automation_providers_.erase(remove_provider); 38 if (automation_providers_.empty()) 39 OnLastProviderRemoved(); 40 return true; 41 } 42 return false; 43 } 44 45 AutomationProviderList* AutomationProviderList::GetInstance() { 46 if (!instance_) { 47 instance_ = new AutomationProviderList; 48 } 49 DCHECK(NULL != instance_); 50 return instance_; 51 } 52
