1 /* 2 * Copyright (C) 2010 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.statusbar.policy; 18 19 import android.content.Context; 20 import android.os.UserHandle; 21 22 import com.android.internal.view.RotationPolicy; 23 24 import java.util.concurrent.CopyOnWriteArrayList; 25 26 /** Platform implementation of the rotation lock controller. **/ 27 public final class RotationLockControllerImpl implements RotationLockController { 28 private final Context mContext; 29 private final CopyOnWriteArrayList<RotationLockControllerCallback> mCallbacks = 30 new CopyOnWriteArrayList<RotationLockControllerCallback>(); 31 32 private final RotationPolicy.RotationPolicyListener mRotationPolicyListener = 33 new RotationPolicy.RotationPolicyListener() { 34 @Override 35 public void onChange() { 36 notifyChanged(); 37 } 38 }; 39 40 public RotationLockControllerImpl(Context context) { 41 mContext = context; 42 setListening(true); 43 } 44 45 public void addRotationLockControllerCallback(RotationLockControllerCallback callback) { 46 mCallbacks.add(callback); 47 notifyChanged(callback); 48 } 49 50 public void removeRotationLockControllerCallback(RotationLockControllerCallback callback) { 51 mCallbacks.remove(callback); 52 } 53 54 public int getRotationLockOrientation() { 55 return RotationPolicy.getRotationLockOrientation(mContext); 56 } 57 58 public boolean isRotationLocked() { 59 return RotationPolicy.isRotationLocked(mContext); 60 } 61 62 public void setRotationLocked(boolean locked) { 63 RotationPolicy.setRotationLock(mContext, locked); 64 } 65 66 public boolean isRotationLockAffordanceVisible() { 67 return RotationPolicy.isRotationLockToggleVisible(mContext); 68 } 69 70 @Override 71 public void setListening(boolean listening) { 72 if (listening) { 73 RotationPolicy.registerRotationPolicyListener(mContext, mRotationPolicyListener, 74 UserHandle.USER_ALL); 75 } else { 76 RotationPolicy.unregisterRotationPolicyListener(mContext, mRotationPolicyListener); 77 } 78 } 79 80 private void notifyChanged() { 81 for (RotationLockControllerCallback callback : mCallbacks) { 82 notifyChanged(callback); 83 } 84 } 85 86 private void notifyChanged(RotationLockControllerCallback callback) { 87 callback.onRotationLockStateChanged(RotationPolicy.isRotationLocked(mContext), 88 RotationPolicy.isRotationLockToggleVisible(mContext)); 89 } 90 } 91
