Upstream version 7.36.149.0
[platform/framework/web/crosswalk.git] / src / third_party / WebKit / Source / modules / geolocation / GeolocationController.h
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/page/Page.h"
30 #include "core/page/PageLifecycleObserver.h"
31 #include "modules/geolocation/Geolocation.h"
32 #include "platform/heap/Handle.h"
33 #include "wtf/HashSet.h"
34 #include "wtf/Noncopyable.h"
35 #include "wtf/RefPtr.h"
36
37 namespace WebCore {
38
39 class GeolocationInspectorAgent;
40 class GeolocationClient;
41 class GeolocationError;
42 class GeolocationPosition;
43 class Page;
44
45 class GeolocationController FINAL : public NoBaseWillBeGarbageCollectedFinalized<GeolocationController>, public WillBeHeapSupplement<Page>, public PageLifecycleObserver {
46     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(GeolocationController);
47     WTF_MAKE_NONCOPYABLE(GeolocationController);
48 public:
49     virtual ~GeolocationController();
50
51     static PassOwnPtrWillBeRawPtr<GeolocationController> create(Page&, GeolocationClient*);
52
53     void addObserver(Geolocation*, bool enableHighAccuracy);
54     void removeObserver(Geolocation*);
55
56     void requestPermission(Geolocation*);
57     void cancelPermissionRequest(Geolocation*);
58
59     void positionChanged(GeolocationPosition*);
60     void errorOccurred(GeolocationError*);
61
62     GeolocationPosition* lastPosition();
63
64     void setClientForTest(GeolocationClient*);
65     bool hasClientForTest() { return m_hasClientForTest; }
66     GeolocationClient* client() { return m_client; }
67
68     // Inherited from PageLifecycleObserver.
69     virtual void pageVisibilityChanged() OVERRIDE;
70
71     static const char* supplementName();
72     static GeolocationController* from(Page* page) { return static_cast<GeolocationController*>(WillBeHeapSupplement<Page>::from(page, supplementName())); }
73
74     virtual void trace(Visitor*) OVERRIDE;
75
76     virtual void willBeDestroyed() OVERRIDE;
77
78 private:
79     GeolocationController(Page&, GeolocationClient*);
80
81     void startUpdatingIfNeeded();
82     void stopUpdatingIfNeeded();
83
84     GeolocationClient* m_client;
85     bool m_hasClientForTest;
86
87     RefPtrWillBeMember<GeolocationPosition> m_lastPosition;
88     typedef WillBeHeapHashSet<RefPtrWillBeMember<Geolocation> > ObserversSet;
89     // All observers; both those requesting high accuracy and those not.
90     ObserversSet m_observers;
91     ObserversSet m_highAccuracyObservers;
92     bool m_isClientUpdating;
93     GeolocationInspectorAgent* m_inspectorAgent;
94 };
95
96 } // namespace WebCore
97
98 #endif // GeolocationController_h