1 // Copyright (c) 2012 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/ui/views/load_complete_listener.h" 6 7 #include "base/logging.h" 8 #include "content/public/browser/notification_service.h" 9 #include "content/public/browser/notification_types.h" 10 11 LoadCompleteListener::LoadCompleteListener(Delegate* delegate) 12 : delegate_(delegate) { 13 DCHECK(delegate); 14 // Register for notification of when initial page load is complete to ensure 15 // that we wait until start-up is complete before calling the callback. 16 registrar_.Add(this, content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME, 17 content::NotificationService::AllSources()); 18 } 19 20 LoadCompleteListener::~LoadCompleteListener() { 21 if (registrar_.IsRegistered(this, 22 content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME, 23 content::NotificationService::AllSources())) { 24 registrar_.Remove(this, content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME, 25 content::NotificationService::AllSources()); 26 } 27 } 28 29 void LoadCompleteListener::Observe( 30 int type, 31 const content::NotificationSource& source, 32 const content::NotificationDetails& details) { 33 DCHECK_EQ(content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME, type); 34 35 delegate_->OnLoadCompleted(); 36 registrar_.Remove(this, content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME, 37 content::NotificationService::AllSources()); 38 } 39
