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1 // Copyright 2014 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 "config.h" | |
6 #include "core/frame/DeviceSingleWindowEventController.h" | |
7 | |
8 #include "core/dom/Document.h" | |
9 #include "core/frame/DOMWindow.h" | |
10 #include "core/page/Page.h" | |
11 | |
12 namespace WebCore { | |
13 | |
14 DeviceSingleWindowEventController::DeviceSingleWindowEventController(Document& d
ocument) | |
15 : DeviceEventControllerBase(document.page()) | |
16 , DOMWindowLifecycleObserver(document.domWindow()) | |
17 , m_needsCheckingNullEvents(true) | |
18 , m_document(document) | |
19 { | |
20 } | |
21 | |
22 DeviceSingleWindowEventController::~DeviceSingleWindowEventController() | |
23 { | |
24 } | |
25 | |
26 void DeviceSingleWindowEventController::didUpdateData() | |
27 { | |
28 dispatchDeviceEvent(lastEvent()); | |
29 } | |
30 | |
31 void DeviceSingleWindowEventController::dispatchDeviceEvent(PassRefPtrWillBeRawP
tr<Event> prpEvent) | |
32 { | |
33 if (!m_document.domWindow() || m_document.activeDOMObjectsAreSuspended() ||
m_document.activeDOMObjectsAreStopped()) | |
34 return; | |
35 | |
36 RefPtrWillBeRawPtr<Event> event = prpEvent; | |
37 m_document.domWindow()->dispatchEvent(event); | |
38 | |
39 if (m_needsCheckingNullEvents) { | |
40 if (isNullEvent(event.get())) | |
41 stopUpdating(); | |
42 else | |
43 m_needsCheckingNullEvents = false; | |
44 } | |
45 } | |
46 | |
47 void DeviceSingleWindowEventController::didAddEventListener(DOMWindow* window, c
onst AtomicString& eventType) | |
48 { | |
49 if (eventType != eventTypeName()) | |
50 return; | |
51 | |
52 if (page() && page()->visibilityState() == PageVisibilityStateVisible) | |
53 startUpdating(); | |
54 | |
55 m_hasEventListener = true; | |
56 } | |
57 | |
58 void DeviceSingleWindowEventController::didRemoveEventListener(DOMWindow* window
, const AtomicString& eventType) | |
59 { | |
60 if (eventType != eventTypeName() || window->hasEventListeners(eventTypeName(
))) | |
61 return; | |
62 | |
63 stopUpdating(); | |
64 m_hasEventListener = false; | |
65 } | |
66 | |
67 void DeviceSingleWindowEventController::didRemoveAllEventListeners(DOMWindow*) | |
68 { | |
69 stopUpdating(); | |
70 m_hasEventListener = false; | |
71 } | |
72 | |
73 } // namespace WebCore | |
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