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 | #pragma once |
27 | |
28 | #if ENABLE(GEOLOCATION) |
29 | |
30 | #include "ActivityStateChangeObserver.h" |
31 | #include "Geolocation.h" |
32 | #include "Page.h" |
33 | #include <wtf/HashSet.h> |
34 | #include <wtf/Noncopyable.h> |
35 | #include <wtf/RefPtr.h> |
36 | |
37 | namespace WebCore { |
38 | |
39 | class GeolocationClient; |
40 | class GeolocationError; |
41 | class GeolocationPosition; |
42 | |
43 | class GeolocationController : public Supplement<Page>, private ActivityStateChangeObserver { |
44 | WTF_MAKE_FAST_ALLOCATED; |
45 | WTF_MAKE_NONCOPYABLE(GeolocationController); |
46 | public: |
47 | GeolocationController(Page&, GeolocationClient&); |
48 | ~GeolocationController(); |
49 | |
50 | void addObserver(Geolocation&, bool enableHighAccuracy); |
51 | void removeObserver(Geolocation&); |
52 | |
53 | void requestPermission(Geolocation&); |
54 | void cancelPermissionRequest(Geolocation&); |
55 | |
56 | WEBCORE_EXPORT void positionChanged(const Optional<GeolocationPosition>&); |
57 | WEBCORE_EXPORT void errorOccurred(GeolocationError&); |
58 | |
59 | Optional<GeolocationPosition> lastPosition(); |
60 | |
61 | GeolocationClient& client() { return m_client; } |
62 | |
63 | WEBCORE_EXPORT static const char* supplementName(); |
64 | static GeolocationController* from(Page* page) { return static_cast<GeolocationController*>(Supplement<Page>::from(page, supplementName())); } |
65 | |
66 | private: |
67 | Page& m_page; |
68 | GeolocationClient& m_client; |
69 | |
70 | void activityStateDidChange(OptionSet<ActivityState::Flag> oldActivityState, OptionSet<ActivityState::Flag> newActivityState) override; |
71 | |
72 | Optional<GeolocationPosition> m_lastPosition; |
73 | |
74 | typedef HashSet<Ref<Geolocation>> ; |
75 | // All observers; both those requesting high accuracy and those not. |
76 | ObserversSet m_observers; |
77 | ObserversSet m_highAccuracyObservers; |
78 | |
79 | // While the page is not visible, we pend permission requests. |
80 | HashSet<Ref<Geolocation>> m_pendingPermissionRequest; |
81 | }; |
82 | |
83 | } // namespace WebCore |
84 | |
85 | #endif // ENABLE(GEOLOCATION) |
86 | |