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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 #ifndef ScreenOrientation_h | |
6 #define ScreenOrientation_h | |
7 | |
8 #include "core/dom/ActiveDOMObject.h" | |
9 #include "core/events/EventTarget.h" | |
10 #include "core/frame/DOMWindowProperty.h" | |
11 #include "core/page/PageLifecycleObserver.h" | |
12 #include "platform/Supplementable.h" | |
13 #include "platform/Timer.h" | |
14 #include "wtf/Vector.h" | |
15 #include "wtf/text/AtomicString.h" | |
16 #include "wtf/text/WTFString.h" | |
17 | |
18 namespace WebCore { | |
19 | |
20 class Frame; | |
21 class Page; | |
22 class Screen; | |
23 | |
24 enum ScreenOrientationValue { | |
25 OrientationInvalid = 0, | |
26 OrientationPortraitPrimary = 1, | |
27 OrientationLandscapePrimary = 1 << 1, | |
28 OrientationPortraitSecondary = 1 << 2, | |
29 OrientationLandscapeSecondary = 1 << 3, | |
30 OrientationPortrait = OrientationPortraitPrimary | OrientationPortraitSecond ary, | |
31 OrientationLandscape = OrientationLandscapePrimary | OrientationLandscapeSec ondary, | |
32 OrientationAny = OrientationPortrait | OrientationLandscape | |
33 }; | |
34 typedef unsigned char ScreenOrientationValues; | |
35 | |
36 class ScreenOrientation FINAL : public Supplement<Screen>, public DOMWindowPrope rty, public PageLifecycleObserver, public ActiveDOMObject { | |
abarth-chromium
2014/02/15 18:44:27
This seems like a lot of base classes. It's odd t
| |
37 public: | |
38 static ScreenOrientation* from(Screen*); | |
39 virtual ~ScreenOrientation(); | |
40 | |
41 DEFINE_STATIC_ATTRIBUTE_EVENT_LISTENER(orientationchange); | |
42 | |
43 static const AtomicString& orientation(Screen*); | |
44 static bool lockOrientation(Screen*, const Vector<String>& orientations); | |
45 static bool lockOrientation(Screen*, const AtomicString& orientation); | |
46 static void unlockOrientation(Screen*); | |
47 | |
48 void orientationChanged(); | |
49 | |
50 private: | |
51 explicit ScreenOrientation(Screen*); | |
52 static const char* supplementName(); | |
53 | |
54 // PageLifecycleObserver API. | |
55 virtual void didCommitLoad(Frame*) OVERRIDE; | |
56 | |
57 // DOMWindowProperty API | |
58 virtual void willDestroyGlobalObjectInFrame() OVERRIDE; | |
59 virtual void willDetachGlobalObjectFromFrame() OVERRIDE; | |
60 | |
61 // ActiveDOMObject. | |
62 virtual void stop() OVERRIDE; | |
63 | |
64 Page* page() const; | |
65 | |
66 static const AtomicString& orientationToString(ScreenOrientationValue); | |
67 static ScreenOrientationValues stringToOrientationValues(const AtomicString& ); | |
68 | |
69 void orientationLockTimerFired(Timer<ScreenOrientation>*); | |
70 void lockOrientationAsync(ScreenOrientationValues orientations); | |
71 void unlockOrientation(); | |
72 | |
73 Screen* m_screen; | |
74 Timer<ScreenOrientation> m_orientationLockTimer; | |
75 ScreenOrientationValues m_lockedOrientations; | |
76 | |
77 friend class InternalsScreenOrientation; | |
78 }; | |
79 | |
80 } // namespace WebCore | |
81 | |
82 #endif // ScreenOrientation_h | |
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