1 /*
2  * Copyright (C) 2017 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.google.android.car.kitchensink.power;
18 
19 import android.car.hardware.power.CarPowerManager;
20 import android.content.Context;
21 import android.os.Bundle;
22 import android.os.Handler;
23 import android.os.PowerManager;
24 import android.os.SystemClock;
25 import android.util.Log;
26 import android.view.LayoutInflater;
27 import android.view.View;
28 import android.view.ViewGroup;
29 import android.widget.Button;
30 
31 import androidx.fragment.app.Fragment;
32 
33 import com.google.android.car.kitchensink.KitchenSinkActivity;
34 import com.google.android.car.kitchensink.R;
35 
36 public class PowerTestFragment extends Fragment {
37     private final boolean DBG = false;
38     private final String TAG = "PowerTestFragment";
39     private CarPowerManager mCarPowerManager;
40 
41     private final CarPowerManager.CarPowerStateListener mPowerListener =
42             (state) -> {
43                 Log.i(TAG, "onStateChanged() state = " + state);
44             };
45 
46     @Override
onCreate(Bundle savedInstanceState)47     public void onCreate(Bundle savedInstanceState) {
48         final Runnable r = () -> {
49             mCarPowerManager = ((KitchenSinkActivity) getActivity()).getPowerManager();
50             try {
51                 mCarPowerManager.setListener(mPowerListener);
52             } catch (IllegalStateException e) {
53                 Log.e(TAG, "CarPowerManager listener was not cleared");
54             }
55         };
56         ((KitchenSinkActivity) getActivity()).requestRefreshManager(r,
57                 new Handler(getContext().getMainLooper()));
58         super.onCreate(savedInstanceState);
59     }
60 
61     @Override
onDestroy()62     public void onDestroy() {
63         super.onDestroy();
64         mCarPowerManager.clearListener();
65     }
66 
67     @Override
onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstance)68     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstance) {
69         View v = inflater.inflate(R.layout.power_test, container, false);
70 
71         Button b = v.findViewById(R.id.btnPwrRequestShutdown);
72         b.setOnClickListener(this::requestShutdownBtn);
73 
74         b = v.findViewById(R.id.btnPwrShutdown);
75         b.setOnClickListener(this::shutdownBtn);
76 
77         b = v.findViewById(R.id.btnPwrSleep);
78         b.setOnClickListener(this::sleepBtn);
79 
80         if(DBG) {
81             Log.d(TAG, "Starting PowerTestFragment");
82         }
83 
84         return v;
85     }
86 
requestShutdownBtn(View v)87     private void requestShutdownBtn(View v) {
88         mCarPowerManager.requestShutdownOnNextSuspend();
89     }
90 
shutdownBtn(View v)91     private void shutdownBtn(View v) {
92         if(DBG) {
93             Log.d(TAG, "Calling shutdown method");
94         }
95         PowerManager pm = (PowerManager) getActivity().getSystemService(Context.POWER_SERVICE);
96         pm.shutdown(/* confirm */ false, /* reason */ null, /* wait */ false);
97         Log.d(TAG, "shutdown called!");
98     }
99 
sleepBtn(View v)100     private void sleepBtn(View v) {
101         if(DBG) {
102             Log.d(TAG, "Calling sleep method");
103         }
104         // NOTE:  This doesn't really work to sleep the device.  Actual sleep is implemented via
105         //  SystemInterface via libsuspend::force_suspend()
106         PowerManager pm = (PowerManager) getActivity().getSystemService(Context.POWER_SERVICE);
107         pm.goToSleep(SystemClock.uptimeMillis(), PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN,
108                      PowerManager.GO_TO_SLEEP_FLAG_NO_DOZE);
109     }
110 }
111