1/* 2 * Copyright (C) 2008 Apple Inc. All Rights Reserved. 3 * Copyright (C) 2013 Google Inc. All Rights Reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 */ 27 28#include "config.h" 29#include "core/platform/LifecycleNotifier.h" 30 31namespace WebCore { 32 33LifecycleNotifier::LifecycleNotifier(LifecycleContext* context) 34 : m_context(context) 35 , m_inDestructor(false) 36 , m_iterating(IteratingNone) 37{ 38} 39 40LifecycleNotifier::~LifecycleNotifier() 41{ 42 m_inDestructor = true; 43 for (ObserverSet::iterator it = m_observers.begin(); it != m_observers.end(); it = m_observers.begin()) { 44 LifecycleObserver* observer = *it; 45 m_observers.remove(observer); 46 ASSERT(observer->lifecycleContext() == m_context); 47 observer->contextDestroyed(); 48 } 49} 50 51void LifecycleNotifier::addObserver(LifecycleObserver* observer) 52{ 53 RELEASE_ASSERT(!m_inDestructor); 54 m_observers.add(observer); 55} 56 57void LifecycleNotifier::removeObserver(LifecycleObserver* observer) 58{ 59 RELEASE_ASSERT(!m_inDestructor); 60 m_observers.remove(observer); 61} 62 63LifecycleContext* LifecycleNotifier::context() 64{ 65 return m_context; 66} 67 68} // namespace WebCore 69