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1 /* | |
2 * Copyright (C) 2009 Apple 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 | |
6 * are met: | |
7 * 1. Redistributions of source code must retain the above copyright | |
8 * notice, this list of conditions and the following disclaimer. | |
9 * 2. Redistributions in binary form must reproduce the above copyright | |
10 * notice, this list of conditions and the following disclaimer in the | |
11 * documentation and/or other materials provided with the distribution. | |
12 * | |
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' | |
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, | |
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS | |
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | |
23 * THE POSSIBILITY OF SUCH DAMAGE. | |
24 */ | |
25 | |
26 #ifndef GeolocationController_h | |
27 #define GeolocationController_h | |
28 | |
29 #include "core/frame/LocalFrame.h" | |
30 #include "core/page/PageLifecycleObserver.h" | |
31 #include "modules/ModulesExport.h" | |
32 #include "modules/geolocation/Geolocation.h" | |
33 #include "platform/heap/Handle.h" | |
34 #include "wtf/HashSet.h" | |
35 #include "wtf/Noncopyable.h" | |
36 | |
37 namespace blink { | |
38 | |
39 class GeolocationClient; | |
40 class GeolocationError; | |
41 class GeolocationPosition; | |
42 | |
43 class MODULES_EXPORT GeolocationController : public GarbageCollectedFinalized<Ge
olocationController>, public Supplement<LocalFrame>, public PageLifecycleObserve
r { | |
44 USING_GARBAGE_COLLECTED_MIXIN(GeolocationController); | |
45 WTF_MAKE_NONCOPYABLE(GeolocationController); | |
46 public: | |
47 virtual ~GeolocationController(); | |
48 | |
49 static GeolocationController* create(LocalFrame&, GeolocationClient*); | |
50 | |
51 void addObserver(Geolocation*, bool enableHighAccuracy); | |
52 void removeObserver(Geolocation*); | |
53 | |
54 void requestPermission(Geolocation*); | |
55 void cancelPermissionRequest(Geolocation*); | |
56 | |
57 void positionChanged(GeolocationPosition*); | |
58 void errorOccurred(GeolocationError*); | |
59 | |
60 GeolocationPosition* lastPosition(); | |
61 | |
62 void setClientForTest(GeolocationClient*); | |
63 bool hasClientForTest() { return m_hasClientForTest; } | |
64 GeolocationClient* client() { return m_client; } | |
65 | |
66 // Inherited from PageLifecycleObserver. | |
67 void pageVisibilityChanged() override; | |
68 | |
69 static const char* supplementName(); | |
70 static GeolocationController* from(LocalFrame* frame) { return static_cast<G
eolocationController*>(Supplement<LocalFrame>::from(frame, supplementName())); } | |
71 | |
72 // Inherited from Supplement. | |
73 DECLARE_VIRTUAL_TRACE(); | |
74 | |
75 private: | |
76 GeolocationController(LocalFrame&, GeolocationClient*); | |
77 | |
78 void startUpdatingIfNeeded(); | |
79 void stopUpdatingIfNeeded(); | |
80 | |
81 Member<GeolocationClient> m_client; | |
82 bool m_hasClientForTest; | |
83 | |
84 Member<GeolocationPosition> m_lastPosition; | |
85 typedef HeapHashSet<Member<Geolocation>> ObserversSet; | |
86 // All observers; both those requesting high accuracy and those not. | |
87 ObserversSet m_observers; | |
88 ObserversSet m_highAccuracyObservers; | |
89 bool m_isClientUpdating; | |
90 }; | |
91 | |
92 } // namespace blink | |
93 | |
94 #endif // GeolocationController_h | |
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