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 #ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_DEVICE_ORIENTATION_DEVICE_ORIENTATION_DATA_H_
27 #define THIRD_PARTY_BLINK_RENDERER_MODULES_DEVICE_ORIENTATION_DEVICE_ORIENTATION_DATA_H_
28 
29 #include "base/optional.h"
30 #include "third_party/blink/renderer/modules/modules_export.h"
31 #include "third_party/blink/renderer/platform/heap/handle.h"
32 
33 namespace blink {
34 
35 class DeviceOrientationEventInit;
36 
37 class MODULES_EXPORT DeviceOrientationData final
38     : public GarbageCollected<DeviceOrientationData> {
39  public:
40   static DeviceOrientationData* Create();
41   static DeviceOrientationData* Create(const base::Optional<double>& alpha,
42                                        const base::Optional<double>& beta,
43                                        const base::Optional<double>& gamma,
44                                        bool absolute);
45   static DeviceOrientationData* Create(const DeviceOrientationEventInit*);
46 
47   DeviceOrientationData();
48   DeviceOrientationData(const base::Optional<double>& alpha,
49                         const base::Optional<double>& beta,
50                         const base::Optional<double>& gamma,
51                         bool absolute);
52 
Trace(Visitor * visitor)53   void Trace(Visitor* visitor) const {}
54 
55   double Alpha() const;
56   double Beta() const;
57   double Gamma() const;
58   bool Absolute() const;
59   bool CanProvideAlpha() const;
60   bool CanProvideBeta() const;
61   bool CanProvideGamma() const;
62 
63   bool CanProvideEventData() const;
64 
65  private:
66   base::Optional<double> alpha_;
67   base::Optional<double> beta_;
68   base::Optional<double> gamma_;
69   bool absolute_;
70 };
71 
72 }  // namespace blink
73 
74 #endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_DEVICE_ORIENTATION_DEVICE_ORIENTATION_DATA_H_
75