1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/widget/gonk/OrientationObserver.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,71 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim: set sw=2 ts=8 et ft=cpp : */
1.6 +/* Copyright 2012 Mozilla Foundation and Mozilla contributors
1.7 + *
1.8 + * Licensed under the Apache License, Version 2.0 (the "License");
1.9 + * you may not use this file except in compliance with the License.
1.10 + * You may obtain a copy of the License at
1.11 + *
1.12 + * http://www.apache.org/licenses/LICENSE-2.0
1.13 + *
1.14 + * Unless required by applicable law or agreed to in writing, software
1.15 + * distributed under the License is distributed on an "AS IS" BASIS,
1.16 + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
1.17 + * See the License for the specific language governing permissions and
1.18 + * limitations under the License.
1.19 + */
1.20 +
1.21 +#ifndef OrientationObserver_h
1.22 +#define OrientationObserver_h
1.23 +
1.24 +#include "mozilla/Observer.h"
1.25 +#include "mozilla/dom/ScreenOrientation.h"
1.26 +#include "mozilla/Scoped.h"
1.27 +
1.28 +namespace mozilla {
1.29 +class ProcessOrientation;
1.30 +namespace hal {
1.31 +class SensorData;
1.32 +typedef mozilla::Observer<SensorData> ISensorObserver;
1.33 +} // namespace hal
1.34 +} // namespace mozilla
1.35 +
1.36 +using mozilla::hal::ISensorObserver;
1.37 +using mozilla::hal::SensorData;
1.38 +using mozilla::dom::ScreenOrientation;
1.39 +
1.40 +class OrientationObserver : public ISensorObserver {
1.41 +public:
1.42 + OrientationObserver();
1.43 + ~OrientationObserver();
1.44 +
1.45 + // Call DisableAutoOrientation on the existing OrientatiOnobserver singleton,
1.46 + // if it exists. If no OrientationObserver exists, do nothing.
1.47 + static void ShutDown();
1.48 +
1.49 + // Notification from sensor.
1.50 + void Notify(const SensorData& aSensorData);
1.51 +
1.52 + // Methods to enable/disable automatic orientation.
1.53 + void EnableAutoOrientation();
1.54 + void DisableAutoOrientation();
1.55 +
1.56 + // Methods called by methods in hal_impl namespace.
1.57 + bool LockScreenOrientation(ScreenOrientation aOrientation);
1.58 + void UnlockScreenOrientation();
1.59 +
1.60 + static OrientationObserver* GetInstance();
1.61 +
1.62 +private:
1.63 + bool mAutoOrientationEnabled;
1.64 + uint32_t mAllowedOrientations;
1.65 + mozilla::ScopedDeletePtr<mozilla::ProcessOrientation> mOrientation;
1.66 +
1.67 + static const uint32_t sDefaultOrientations =
1.68 + mozilla::dom::eScreenOrientation_PortraitPrimary |
1.69 + mozilla::dom::eScreenOrientation_PortraitSecondary |
1.70 + mozilla::dom::eScreenOrientation_LandscapePrimary |
1.71 + mozilla::dom::eScreenOrientation_LandscapeSecondary;
1.72 +};
1.73 +
1.74 +#endif
