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.android.systemui.doze; 18 19 import android.view.Display; 20 21 import androidx.annotation.VisibleForTesting; 22 23 import com.android.systemui.statusbar.phone.DozeParameters; 24 25 /** 26 * Prevents usage of doze screen states on devices that don't support them. 27 */ 28 public class DozeScreenStatePreventingAdapter extends DozeMachine.Service.Delegate { 29 30 @VisibleForTesting 31 DozeScreenStatePreventingAdapter(DozeMachine.Service inner) { 32 super(inner); 33 } 34 35 @Override 36 public void setDozeScreenState(int state) { 37 if (state == Display.STATE_DOZE) { 38 state = Display.STATE_ON; 39 } else if (state == Display.STATE_DOZE_SUSPEND) { 40 state = Display.STATE_ON_SUSPEND; 41 } 42 super.setDozeScreenState(state); 43 } 44 45 /** 46 * If the device supports the doze display state, return {@code inner}. Otherwise 47 * return a new instance of {@link DozeScreenStatePreventingAdapter} wrapping {@code inner}. 48 */ 49 public static DozeMachine.Service wrapIfNeeded(DozeMachine.Service inner, 50 DozeParameters params) { 51 return isNeeded(params) ? new DozeScreenStatePreventingAdapter(inner) : inner; 52 } 53 54 private static boolean isNeeded(DozeParameters params) { 55 return !params.getDisplayStateSupported(); 56 } 57 } 58
