| /* |
| * Copyright (C) 2009 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.settings.bluetooth; |
| |
| import android.app.Service; |
| import android.bluetooth.BluetoothAdapter; |
| import android.bluetooth.BluetoothDevice; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.os.PowerManager; |
| import android.util.Log; |
| |
| public class DockEventReceiver extends BroadcastReceiver { |
| |
| private static final boolean DEBUG = DockService.DEBUG; |
| |
| private static final String TAG = "DockEventReceiver"; |
| |
| public static final String ACTION_DOCK_SHOW_UI = |
| "com.android.settings.bluetooth.action.DOCK_SHOW_UI"; |
| |
| private static final int EXTRA_INVALID = -1234; |
| |
| private static final Object mStartingServiceSync = new Object(); |
| |
| private static final long WAKELOCK_TIMEOUT = 5000; |
| |
| private static PowerManager.WakeLock mStartingService; |
| |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| if (intent == null) |
| return; |
| |
| int state = intent.getIntExtra(Intent.EXTRA_DOCK_STATE, EXTRA_INVALID); |
| BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); |
| |
| if (DEBUG) { |
| Log.d(TAG, "Action: " + intent.getAction() + " State:" + state + " Device: " |
| + (device == null ? "null" : device.getName())); |
| } |
| |
| if (Intent.ACTION_DOCK_EVENT.equals(intent.getAction()) |
| || ACTION_DOCK_SHOW_UI.endsWith(intent.getAction())) { |
| if (device == null) { |
| if (DEBUG) Log.d(TAG, "Device is missing"); |
| return; |
| } |
| |
| switch (state) { |
| case Intent.EXTRA_DOCK_STATE_UNDOCKED: |
| case Intent.EXTRA_DOCK_STATE_CAR: |
| case Intent.EXTRA_DOCK_STATE_DESK: |
| Intent i = new Intent(intent); |
| i.setClass(context, DockService.class); |
| beginStartingService(context, i); |
| break; |
| default: |
| if (DEBUG) Log.e(TAG, "Unknown state"); |
| break; |
| } |
| } else if (BluetoothAdapter.ACTION_STATE_CHANGED.equals(intent.getAction())) { |
| int btState = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, BluetoothAdapter.ERROR); |
| if (btState == BluetoothAdapter.STATE_ON) { |
| Intent i = new Intent(intent); |
| i.setClass(context, DockService.class); |
| beginStartingService(context, i); |
| } |
| } |
| } |
| |
| /** |
| * Start the service to process the current event notifications, acquiring |
| * the wake lock before returning to ensure that the service will run. |
| */ |
| public static void beginStartingService(Context context, Intent intent) { |
| synchronized (mStartingServiceSync) { |
| if (mStartingService == null) { |
| PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE); |
| mStartingService = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, |
| "StartingDockService"); |
| } |
| |
| mStartingService.acquire(WAKELOCK_TIMEOUT); |
| |
| if (context.startService(intent) == null) { |
| Log.e(TAG, "Can't start DockService"); |
| } |
| } |
| } |
| |
| /** |
| * Called back by the service when it has finished processing notifications, |
| * releasing the wake lock if the service is now stopping. |
| */ |
| public static void finishStartingService(Service service, int startId) { |
| synchronized (mStartingServiceSync) { |
| if (mStartingService != null) { |
| if (DEBUG) Log.d(TAG, "stopSelf id = "+ startId); |
| service.stopSelfResult(startId); |
| } |
| } |
| } |
| } |