| /* |
| * Copyright (C) 2015 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 |
| */ |
| |
| package com.android.server.telecom; |
| |
| import android.app.UiModeManager; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.res.Configuration; |
| import android.telecom.Log; |
| |
| import java.util.Set; |
| import java.util.concurrent.CopyOnWriteArraySet; |
| |
| /** |
| * Provides various system states to the rest of the telecom codebase. So far, that's only car-mode. |
| */ |
| public class SystemStateProvider { |
| |
| public static interface SystemStateListener { |
| public void onCarModeChanged(boolean isCarMode); |
| } |
| |
| private final Context mContext; |
| private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| Log.startSession("SSP.oR"); |
| try { |
| String action = intent.getAction(); |
| if (UiModeManager.ACTION_ENTER_CAR_MODE.equals(action)) { |
| onEnterCarMode(); |
| } else if (UiModeManager.ACTION_EXIT_CAR_MODE.equals(action)) { |
| onExitCarMode(); |
| } else { |
| Log.w(this, "Unexpected intent received: %s", intent.getAction()); |
| } |
| } finally { |
| Log.endSession(); |
| } |
| } |
| }; |
| |
| private Set<SystemStateListener> mListeners = new CopyOnWriteArraySet<>(); |
| private boolean mIsCarMode; |
| |
| public SystemStateProvider(Context context) { |
| mContext = context; |
| |
| IntentFilter intentFilter = new IntentFilter(UiModeManager.ACTION_ENTER_CAR_MODE); |
| intentFilter.addAction(UiModeManager.ACTION_EXIT_CAR_MODE); |
| mContext.registerReceiver(mBroadcastReceiver, intentFilter); |
| Log.i(this, "Registering car mode receiver: %s", intentFilter); |
| |
| mIsCarMode = getSystemCarMode(); |
| } |
| |
| public void addListener(SystemStateListener listener) { |
| if (listener != null) { |
| mListeners.add(listener); |
| } |
| } |
| |
| public boolean removeListener(SystemStateListener listener) { |
| return mListeners.remove(listener); |
| } |
| |
| public boolean isCarMode() { |
| return mIsCarMode; |
| } |
| |
| private void onEnterCarMode() { |
| if (!mIsCarMode) { |
| Log.i(this, "Entering carmode"); |
| mIsCarMode = true; |
| notifyCarMode(); |
| } |
| } |
| |
| private void onExitCarMode() { |
| if (mIsCarMode) { |
| Log.i(this, "Exiting carmode"); |
| mIsCarMode = false; |
| notifyCarMode(); |
| } |
| } |
| |
| private void notifyCarMode() { |
| for (SystemStateListener listener : mListeners) { |
| listener.onCarModeChanged(mIsCarMode); |
| } |
| } |
| |
| /** |
| * Checks the system for the current car mode. |
| * |
| * @return True if in car mode, false otherwise. |
| */ |
| private boolean getSystemCarMode() { |
| UiModeManager uiModeManager = |
| (UiModeManager) mContext.getSystemService(Context.UI_MODE_SERVICE); |
| |
| if (uiModeManager != null) { |
| return uiModeManager.getCurrentModeType() == Configuration.UI_MODE_TYPE_CAR; |
| } |
| |
| return false; |
| } |
| } |