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 "content/public/browser/user_metrics.h" 6 7 #include <vector> 8 9 #include "base/bind.h" 10 #include "base/lazy_instance.h" 11 #include "content/public/browser/browser_thread.h" 12 13 namespace content { 14 namespace { 15 16 base::LazyInstance<std::vector<ActionCallback> > g_action_callbacks = 17 LAZY_INSTANCE_INITIALIZER; 18 19 // Forward declare because of circular dependency. 20 void CallRecordOnUI(const std::string& action); 21 22 void Record(const char *action) { 23 if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) { 24 BrowserThread::PostTask( 25 BrowserThread::UI, 26 FROM_HERE, 27 base::Bind(&CallRecordOnUI, action)); 28 return; 29 } 30 31 for (size_t i = 0; i < g_action_callbacks.Get().size(); i++) 32 g_action_callbacks.Get()[i].Run(action); 33 } 34 35 void CallRecordOnUI(const std::string& action) { 36 Record(action.c_str()); 37 } 38 39 } // namespace 40 41 void RecordAction(const UserMetricsAction& action) { 42 Record(action.str_); 43 } 44 45 void RecordComputedAction(const std::string& action) { 46 Record(action.c_str()); 47 } 48 49 void AddActionCallback(const ActionCallback& callback) { 50 g_action_callbacks.Get().push_back(callback); 51 } 52 53 void RemoveActionCallback(const ActionCallback& callback) { 54 for (size_t i = 0; i < g_action_callbacks.Get().size(); i++) { 55 if (g_action_callbacks.Get()[i].Equals(callback)) { 56 g_action_callbacks.Get().erase(g_action_callbacks.Get().begin() + i); 57 return; 58 } 59 } 60 } 61 62 } // namespace content 63
