1/* 2 * Copyright 2010, The Android Open Source Project 3 * Copyright (C) 2012 Samsung Electronics. 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 INC. AND ITS CONTRIBUTORS ``AS IS'' 15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 16 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 18 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 19 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 20 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 22 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 23 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 24 * THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#include "config.h" 28#include "DeviceController.h" 29 30#include "DeviceClient.h" 31#include "Document.h" 32#include "Page.h" 33 34namespace WebCore { 35 36DeviceController::DeviceController(DeviceClient* client) 37 : m_client(client) 38 , m_timer(this, &DeviceController::fireDeviceEvent) 39{ 40 ASSERT(m_client); 41} 42 43void DeviceController::addDeviceEventListener(DOMWindow* window) 44{ 45 bool wasEmpty = m_listeners.isEmpty(); 46 m_listeners.add(window); 47 48 if (hasLastData()) { 49 m_lastEventListeners.add(window); 50 if (!m_timer.isActive()) 51 m_timer.startOneShot(0); 52 } 53 54 if (wasEmpty) 55 m_client->startUpdating(); 56} 57 58void DeviceController::removeDeviceEventListener(DOMWindow* window) 59{ 60 m_listeners.remove(window); 61 m_lastEventListeners.remove(window); 62 if (m_listeners.isEmpty()) 63 m_client->stopUpdating(); 64} 65 66void DeviceController::removeAllDeviceEventListeners(DOMWindow* window) 67{ 68 m_listeners.removeAll(window); 69 m_lastEventListeners.removeAll(window); 70 if (m_listeners.isEmpty()) 71 m_client->stopUpdating(); 72} 73 74void DeviceController::dispatchDeviceEvent(PassRefPtr<Event> prpEvent) 75{ 76 RefPtr<Event> event = prpEvent; 77 Vector<RefPtr<DOMWindow> > listenerVector; 78 copyToVector(m_listeners, listenerVector); 79 for (size_t i = 0; i < listenerVector.size(); ++i) { 80 if (listenerVector[i]->document() 81 && !listenerVector[i]->document()->activeDOMObjectsAreSuspended() 82 && !listenerVector[i]->document()->activeDOMObjectsAreStopped()) 83 listenerVector[i]->dispatchEvent(event); 84 } 85} 86 87void DeviceController::fireDeviceEvent(Timer<DeviceController>* timer) 88{ 89 ASSERT_UNUSED(timer, timer == &m_timer); 90 ASSERT(hasLastData()); 91 92 m_timer.stop(); 93 Vector<RefPtr<DOMWindow> > listenerVector; 94 copyToVector(m_lastEventListeners, listenerVector); 95 m_lastEventListeners.clear(); 96 for (size_t i = 0; i < listenerVector.size(); ++i) { 97 if (listenerVector[i]->document() 98 && !listenerVector[i]->document()->activeDOMObjectsAreSuspended() 99 && !listenerVector[i]->document()->activeDOMObjectsAreStopped()) 100 listenerVector[i]->dispatchEvent(getLastEvent()); 101 } 102} 103 104} // namespace WebCore 105