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#ifndef WebDeviceOrientationClient_h
27#define WebDeviceOrientationClient_h
28
29#include "../platform/WebCommon.h"
30#include "WebDeviceOrientation.h"
31
32namespace WebKit {
33
34class WebDeviceOrientation;
35class WebDeviceOrientationController;
36
37class WebDeviceOrientationClient {
38public:
39    virtual ~WebDeviceOrientationClient() {}
40
41    virtual void setController(WebDeviceOrientationController*) { WEBKIT_ASSERT_NOT_REACHED(); }
42    virtual void startUpdating() { WEBKIT_ASSERT_NOT_REACHED(); }
43    virtual void stopUpdating() { WEBKIT_ASSERT_NOT_REACHED(); }
44
45    virtual WebDeviceOrientation lastOrientation() const
46    {
47        WEBKIT_ASSERT_NOT_REACHED();
48        return WebDeviceOrientation::nullOrientation();
49    }
50};
51
52} // namespace WebKit
53
54#endif // WebDeviceOrientationClient_h
55