15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2012 Google Inc. All Rights Reserved. 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Redistribution and use in source and binary forms, with or without 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modification, are permitted provided that the following conditions 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * are met: 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 1. Redistributions of source code must retain the above copyright 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer. 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 2. Redistributions in binary form must reproduce the above copyright 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer in the 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * documentation and/or other materials provided with the distribution. 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "config.h" 2753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/dom/IdTargetObserverRegistry.h" 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/dom/IdTargetObserver.h" 305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 31c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)namespace blink { 325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 33f523d2789ac2f83c4eca0ee4d5161bfdb5f2d052Torne (Richard Coles)PassOwnPtrWillBeRawPtr<IdTargetObserverRegistry> IdTargetObserverRegistry::create() 345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 35f523d2789ac2f83c4eca0ee4d5161bfdb5f2d052Torne (Richard Coles) return adoptPtrWillBeNoop(new IdTargetObserverRegistry()); 36f523d2789ac2f83c4eca0ee4d5161bfdb5f2d052Torne (Richard Coles)} 37f523d2789ac2f83c4eca0ee4d5161bfdb5f2d052Torne (Richard Coles) 38f523d2789ac2f83c4eca0ee4d5161bfdb5f2d052Torne (Richard Coles)void IdTargetObserverRegistry::trace(Visitor* visitor) 39f523d2789ac2f83c4eca0ee4d5161bfdb5f2d052Torne (Richard Coles){ 40c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)#if ENABLE(OILPAN) 41f523d2789ac2f83c4eca0ee4d5161bfdb5f2d052Torne (Richard Coles) visitor->trace(m_registry); 42f523d2789ac2f83c4eca0ee4d5161bfdb5f2d052Torne (Richard Coles) visitor->trace(m_notifyingObserversInSet); 43c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)#endif 445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void IdTargetObserverRegistry::addObserver(const AtomicString& id, IdTargetObserver* observer) 475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (id.isEmpty()) 495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return; 5002772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) IdToObserverSetMap::AddResult result = m_registry.add(id.impl(), nullptr); 525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (result.isNewEntry) 53f523d2789ac2f83c4eca0ee4d5161bfdb5f2d052Torne (Richard Coles) result.storedValue->value = adoptPtrWillBeNoop(new ObserverSet()); 545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 5509380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) result.storedValue->value->add(observer); 565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void IdTargetObserverRegistry::removeObserver(const AtomicString& id, IdTargetObserver* observer) 595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (id.isEmpty() || m_registry.isEmpty()) 615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return; 625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) IdToObserverSetMap::iterator iter = m_registry.find(id.impl()); 645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ObserverSet* set = iter->value.get(); 665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) set->remove(observer); 675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (set->isEmpty() && set != m_notifyingObserversInSet) 685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_registry.remove(iter); 695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void IdTargetObserverRegistry::notifyObserversInternal(const AtomicString& id) 725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(!id.isEmpty()); 745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(!m_registry.isEmpty()); 755c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_notifyingObserversInSet = m_registry.get(id.impl()); 775c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!m_notifyingObserversInSet) 785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return; 795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 80f523d2789ac2f83c4eca0ee4d5161bfdb5f2d052Torne (Richard Coles) WillBeHeapVector<RawPtrWillBeMember<IdTargetObserver> > copy; 815c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) copyToVector(*m_notifyingObserversInSet, copy); 82f523d2789ac2f83c4eca0ee4d5161bfdb5f2d052Torne (Richard Coles) for (WillBeHeapVector<RawPtrWillBeMember<IdTargetObserver> >::const_iterator it = copy.begin(); it != copy.end(); ++it) { 835c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (m_notifyingObserversInSet->contains(*it)) 845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) (*it)->idTargetChanged(); 855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 865c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 875c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (m_notifyingObserversInSet->isEmpty()) 885c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_registry.remove(id.impl()); 895c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 90f523d2789ac2f83c4eca0ee4d5161bfdb5f2d052Torne (Richard Coles) m_notifyingObserversInSet = nullptr; 915c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 925c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 9309380295ba73501a205346becac22c6978e4671dTorne (Richard Coles)bool IdTargetObserverRegistry::hasObservers(const AtomicString& id) const 9409380295ba73501a205346becac22c6978e4671dTorne (Richard Coles){ 9509380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) if (id.isEmpty() || m_registry.isEmpty()) 9609380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) return false; 9709380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) ObserverSet* set = m_registry.get(id.impl()); 9809380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) return set && !set->isEmpty(); 9909380295ba73501a205346becac22c6978e4671dTorne (Richard Coles)} 10009380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) 101c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)} // namespace blink 102