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#include "config.h"
27#include "GeolocationController.h"
28
29#if ENABLE(CLIENT_BASED_GEOLOCATION)
30
31#include "GeolocationControllerClient.h"
32
33namespace WebCore {
34
35GeolocationController::GeolocationController(Page* page, GeolocationControllerClient* client)
36    : m_page(page)
37    , m_client(client)
38{
39}
40
41GeolocationController::~GeolocationController()
42{
43    if (m_client)
44        m_client->geolocationDestroyed();
45}
46
47void GeolocationController::addObserver(Geolocation* observer)
48{
49    ASSERT(!m_observers.contains(observer));
50
51    bool wasEmpty = m_observers.isEmpty();
52    m_observers.add(observer);
53    if (wasEmpty && m_client)
54        m_client->startUpdating();
55}
56
57void GeolocationController::removeObserver(Geolocation* observer)
58{
59    if (!m_observers.contains(observer))
60        return;
61
62    m_observers.remove(observer);
63    if (m_observers.isEmpty() && m_client)
64        m_client->stopUpdating();
65}
66
67void GeolocationController::positionChanged(GeolocationPosition* position)
68{
69    Vector<RefPtr<Geolocation> > observersVector;
70    copyToVector(m_observers, observersVector);
71    for (size_t i = 0; i < observersVector.size(); ++i)
72        observersVector[i]->setPosition(position);
73}
74
75void GeolocationController::errorOccurred(GeolocationError* error)
76{
77    Vector<RefPtr<Geolocation> > observersVector;
78    copyToVector(m_observers, observersVector);
79    for (size_t i = 0; i < observersVector.size(); ++i)
80        observersVector[i]->setError(error);
81}
82
83GeolocationPosition* GeolocationController::lastPosition()
84{
85    if (!m_client)
86        return 0;
87
88    return m_client->lastPosition();
89}
90
91} // namespace WebCore
92
93#endif // ENABLE(CLIENT_BASED_GEOLOCATION)
94