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 *  * Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 *  * 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 THE COPYRIGHT HOLDERS ``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 THE COPYRIGHT OWNER 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#import "WebDeviceOrientationProvider.h"
27#import <WebCore/DeviceOrientationClient.h>
28
29namespace WebCore {
30class DeviceOrientationController;
31}
32
33@class WebView;
34
35// This class is the Mac implementation of DeviceOrientationClient. It is
36// passed to the Page constructor by the WebView. It is a simple proxy to
37// either the real or mock client which is passed to the WebView. It is
38// required because the WebView must pass a client to the Page constructor,
39// but the real or mock client can not be specified until after the Page has
40// been constructed.
41class WebDeviceOrientationClient : public WebCore::DeviceOrientationClient {
42public:
43    WebDeviceOrientationClient(WebView*);
44
45    // DeviceOrientationClient methods
46    virtual void setController(WebCore::DeviceOrientationController*) override;
47    virtual void startUpdating() override;
48    virtual void stopUpdating() override;
49    virtual WebCore::DeviceOrientationData* lastOrientation() const override;
50    virtual void deviceOrientationControllerDestroyed() override;
51
52private:
53    id<WebDeviceOrientationProvider> getProvider() const;
54
55    WebView* m_webView;
56    WebCore::DeviceOrientationController* m_controller;
57    mutable id<WebDeviceOrientationProvider> m_provider;
58};
59