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/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _BOOTANIMATION_BOOT_PARAMETERS_H_
#define _BOOTANIMATION_BOOT_PARAMETERS_H_
#include <list>
#include <vector>
#include <base/json/json_value_converter.h>
#include <boot_action/boot_action.h> // libandroidthings native API.
namespace android {
// Provides access to the parameters set by DeviceManager.reboot().
class BootParameters {
public:
// Constructor loads the parameters for this boot and swaps the param files
// to clear the parameters for next boot.
BootParameters();
// Returns true if volume/brightness were explicitly set on reboot.
bool hasVolume() const { return mVolume >= 0; }
bool hasBrightness() const { return mBrightness >= 0; }
// Returns volume/brightness in [0,1], or -1 if unset.
float getVolume() const { return mVolume; }
float getBrightness() const { return mBrightness; }
// Returns the additional boot parameters that were set on reboot.
const std::vector<ABootActionParameter>& getParameters() const { return mParameters; }
private:
// Raw boot saved_parameters loaded from .json.
struct SavedBootParameters {
int brightness;
int volume;
std::vector<std::unique_ptr<std::string>> param_names;
std::vector<std::unique_ptr<std::string>> param_values;
SavedBootParameters();
static void RegisterJSONConverter(
::base::JSONValueConverter<SavedBootParameters>* converter);
};
void loadParameters();
float mVolume = -1.f;
float mBrightness = -1.f;
std::vector<ABootActionParameter> mParameters;
// ABootActionParameter is just a raw pointer so we need to keep the
// original strings around to avoid losing them.
SavedBootParameters mRawParameters;
};
} // namespace android
#endif // _BOOTANIMATION_BOOT_PARAMETERS_H_
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