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| 1 /* |
| 2 * Copyright (C) 2014 Google Inc. All rights reserved. |
| 3 * |
| 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions are |
| 6 * met: |
| 7 * |
| 8 * * Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. |
| 10 * * Redistributions in binary form must reproduce the above |
| 11 * copyright notice, this list of conditions and the following disclaimer |
| 12 * in the documentation and/or other materials provided with the |
| 13 * distribution. |
| 14 * * Neither the name of Google Inc. nor the names of its |
| 15 * contributors may be used to endorse or promote products derived from |
| 16 * this software without specific prior written permission. |
| 17 * |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 29 */ |
| 30 |
| 31 #include "config.h" |
| 32 #include "core/frame/DeviceSingleWindowEventController.h" |
| 33 |
| 34 #include "core/dom/Document.h" |
| 35 #include "core/frame/DOMWindow.h" |
| 36 #include "core/page/Page.h" |
| 37 |
| 38 namespace WebCore { |
| 39 |
| 40 DeviceSingleWindowEventController::DeviceSingleWindowEventController(Document& d
ocument) |
| 41 : DeviceEventControllerBase(document.page()) |
| 42 , DOMWindowLifecycleObserver(document.domWindow()) |
| 43 , m_needsCheckingNullEvents(true) |
| 44 , m_document(document) |
| 45 { |
| 46 } |
| 47 |
| 48 DeviceSingleWindowEventController::~DeviceSingleWindowEventController() |
| 49 { |
| 50 } |
| 51 |
| 52 void DeviceSingleWindowEventController::didUpdateData() |
| 53 { |
| 54 dispatchDeviceEvent(getLastEvent()); |
| 55 } |
| 56 |
| 57 void DeviceSingleWindowEventController::dispatchDeviceEvent(PassRefPtrWillBeRawP
tr<Event> prpEvent) |
| 58 { |
| 59 if (!m_document.domWindow() || m_document.activeDOMObjectsAreSuspended() ||
m_document.activeDOMObjectsAreStopped()) |
| 60 return; |
| 61 |
| 62 RefPtrWillBeRawPtr<Event> event = prpEvent; |
| 63 m_document.domWindow()->dispatchEvent(event); |
| 64 |
| 65 if (m_needsCheckingNullEvents) { |
| 66 if (isNullEvent(event.get())) |
| 67 stopUpdating(); |
| 68 else |
| 69 m_needsCheckingNullEvents = false; |
| 70 } |
| 71 } |
| 72 |
| 73 void DeviceSingleWindowEventController::didAddEventListener(DOMWindow* window, c
onst AtomicString& eventType) |
| 74 { |
| 75 if (eventType != getEventTypeName()) |
| 76 return; |
| 77 |
| 78 if (page() && page()->visibilityState() == PageVisibilityStateVisible) |
| 79 startUpdating(); |
| 80 |
| 81 m_hasEventListener = true; |
| 82 } |
| 83 |
| 84 void DeviceSingleWindowEventController::didRemoveEventListener(DOMWindow* window
, const AtomicString& eventType) |
| 85 { |
| 86 if (eventType != getEventTypeName() || window->hasEventListeners(getEventTyp
eName())) |
| 87 return; |
| 88 |
| 89 stopUpdating(); |
| 90 m_hasEventListener = false; |
| 91 } |
| 92 |
| 93 void DeviceSingleWindowEventController::didRemoveAllEventListeners(DOMWindow*) |
| 94 { |
| 95 stopUpdating(); |
| 96 m_hasEventListener = false; |
| 97 } |
| 98 |
| 99 } // namespace WebCore |
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