1 /*
2  * Copyright (C) 2008 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. ``AS IS'' AND ANY
14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #ifndef GeolocationService_h
27 #define GeolocationService_h
28 
29 #include <wtf/Noncopyable.h>
30 #include <wtf/PassOwnPtr.h>
31 
32 namespace WebCore {
33 
34 class GeolocationService;
35 class Geoposition;
36 class PositionError;
37 class PositionOptions;
38 
39 class GeolocationServiceClient {
40 public:
~GeolocationServiceClient()41     virtual ~GeolocationServiceClient() { }
42     virtual void geolocationServicePositionChanged(GeolocationService*) = 0;
43     virtual void geolocationServiceErrorOccurred(GeolocationService*) = 0;
44 };
45 
46 class GeolocationService {
47     WTF_MAKE_NONCOPYABLE(GeolocationService);
48 public:
49     static PassOwnPtr<GeolocationService> create(GeolocationServiceClient*);
~GeolocationService()50     virtual ~GeolocationService() { }
51 
startUpdating(PositionOptions *)52     virtual bool startUpdating(PositionOptions*) { return false; }
stopUpdating()53     virtual void stopUpdating() { }
54 
suspend()55     virtual void suspend() { }
resume()56     virtual void resume() { }
57 
lastPosition()58     virtual Geoposition* lastPosition() const { return 0; }
lastError()59     virtual PositionError* lastError() const { return 0; }
60 
61     void positionChanged();
62     void errorOccurred();
63 
64     static void useMock();
65     typedef PassOwnPtr<GeolocationService> (FactoryFunction)(GeolocationServiceClient*);
66     static void setCustomMockFactory(FactoryFunction);
67 
68 protected:
69     GeolocationService(GeolocationServiceClient*);
geolocationServiceClient()70     GeolocationServiceClient* geolocationServiceClient() const { return m_geolocationServiceClient; }
71 
72 private:
73     GeolocationServiceClient* m_geolocationServiceClient;
74 
75     static FactoryFunction* s_factoryFunction;
76     static FactoryFunction* s_mockFactoryFunction;
77 };
78 
79 } // namespace WebCore
80 
81 #endif // GeolocationService_h
82 
83