1/*
2 * Copyright (C) 2010 Google 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 *
8 * 1.  Redistributions of source code must retain the above copyright
9 *     notice, this list of conditions and the following disclaimer.
10 * 2.  Redistributions in binary form must reproduce the above copyright
11 *     notice, this list of conditions and the following disclaimer in the
12 *     documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "DeviceOrientationClientProxy.h"
28
29#include "DeviceOrientation.h"
30#include "WebDeviceOrientation.h"
31#include "WebDeviceOrientationController.h"
32#include <wtf/OwnPtr.h>
33#include <wtf/PassRefPtr.h>
34#include <wtf/RefPtr.h>
35
36namespace WebCore {
37class DeviceOrientationController;
38}
39
40namespace WebKit {
41
42void DeviceOrientationClientProxy::setController(WebCore::DeviceOrientationController* c)
43{
44    if (!m_client) // FIXME: Get rid of these null checks once device orientation is enabled by default.
45        return;
46    m_client->setController(new WebDeviceOrientationController(c));
47}
48
49void DeviceOrientationClientProxy::startUpdating()
50{
51    if (!m_client)
52        return;
53    m_client->startUpdating();
54}
55
56void DeviceOrientationClientProxy::stopUpdating()
57{
58    if (!m_client)
59        return;
60    m_client->stopUpdating();
61}
62
63WebCore::DeviceOrientation* DeviceOrientationClientProxy::lastOrientation() const
64{
65    if (!m_client)
66        return 0;
67
68    // Cache the DeviceOrientation pointer so its reference count does not drop to zero upon return.
69    m_lastOrientation = m_client->lastOrientation();
70
71    return m_lastOrientation.get();
72}
73
74void DeviceOrientationClientProxy::deviceOrientationControllerDestroyed()
75{
76    // Our lifetime is bound to the WebViewImpl.
77}
78
79} // namespace WebKit
80