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.support.annotation.VisibleForTesting; 20 import android.view.Display; 21 22 import com.android.systemui.statusbar.phone.DozeParameters; 23 24 /** 25 * Prevents usage of doze screen states on devices that don't support them. 26 */ 27 public class DozeScreenStatePreventingAdapter implements DozeMachine.Service { 28 29 private final DozeMachine.Service mInner; 30 31 @VisibleForTesting 32 DozeScreenStatePreventingAdapter(DozeMachine.Service inner) { 33 mInner = inner; 34 } 35 36 @Override 37 public void finish() { 38 mInner.finish(); 39 } 40 41 @Override 42 public void setDozeScreenState(int state) { 43 if (state == Display.STATE_DOZE || state == Display.STATE_DOZE_SUSPEND) { 44 state = Display.STATE_ON; 45 } 46 mInner.setDozeScreenState(state); 47 } 48 49 @Override 50 public void requestWakeUp() { 51 mInner.requestWakeUp(); 52 } 53 54 /** 55 * If the device supports the doze display state, return {@code inner}. Otherwise 56 * return a new instance of {@link DozeScreenStatePreventingAdapter} wrapping {@code inner}. 57 */ 58 public static DozeMachine.Service wrapIfNeeded(DozeMachine.Service inner, 59 DozeParameters params) { 60 return isNeeded(params) ? new DozeScreenStatePreventingAdapter(inner) : inner; 61 } 62 63 private static boolean isNeeded(DozeParameters params) { 64 return !params.getDisplayStateSupported(); 65 } 66 } 67
