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/*
* Copyright (C) 2008 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 com.android.settings.R;
import com.android.settings.bluetooth.LocalBluetoothProfileManager.Profile;
import android.bluetooth.BluetoothA2dp;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothClass;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothHeadset;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.util.Log;
/**
* BluetoothEventRedirector receives broadcasts and callbacks from the Bluetooth
* API and dispatches the event on the UI thread to the right class in the
* Settings.
*/
public class BluetoothEventRedirector {
private static final String TAG = "BluetoothEventRedirector";
private LocalBluetoothManager mManager;
private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
Log.v(TAG, "Received " + intent.getAction());
String action = intent.getAction();
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
if (action.equals(BluetoothAdapter.ACTION_STATE_CHANGED)) {
int state = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE,
BluetoothAdapter.ERROR);
mManager.setBluetoothStateInt(state);
} else if (action.equals(BluetoothAdapter.ACTION_DISCOVERY_STARTED)) {
persistDiscoveringTimestamp();
mManager.onScanningStateChanged(true);
} else if (action.equals(BluetoothAdapter.ACTION_DISCOVERY_FINISHED)) {
persistDiscoveringTimestamp();
mManager.onScanningStateChanged(false);
} else if (action.equals(BluetoothDevice.ACTION_FOUND)) {
short rssi = intent.getShortExtra(BluetoothDevice.EXTRA_RSSI, Short.MIN_VALUE);
BluetoothClass btClass = intent.getParcelableExtra(BluetoothDevice.EXTRA_CLASS);
String name = intent.getStringExtra(BluetoothDevice.EXTRA_NAME);
// TODO Pick up UUID. They should be available for 2.1 devices.
// Skip for now, there's a bluez problem and we are not getting uuids even for 2.1.
mManager.getCachedDeviceManager().onDeviceAppeared(device, rssi, btClass, name);
} else if (action.equals(BluetoothDevice.ACTION_DISAPPEARED)) {
mManager.getCachedDeviceManager().onDeviceDisappeared(device);
} else if (action.equals(BluetoothDevice.ACTION_NAME_CHANGED)) {
mManager.getCachedDeviceManager().onDeviceNameUpdated(device);
} else if (action.equals(BluetoothDevice.ACTION_BOND_STATE_CHANGED)) {
int bondState = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE,
BluetoothDevice.ERROR);
CachedBluetoothDeviceManager cachedDeviceMgr = mManager.getCachedDeviceManager();
cachedDeviceMgr.onBondingStateChanged(device, bondState);
if (bondState == BluetoothDevice.BOND_NONE) {
if (device.isBluetoothDock()) {
// After a dock is unpaired, we will forget the
// setttings
mManager.removeDockAutoConnectSetting(device.getAddress());
// if the device is undocked, remove it from the list as
// well
if (!device.getAddress().equals(getDockedDeviceAddress(context))) {
cachedDeviceMgr.onDeviceDisappeared(device);
}
}
int reason = intent.getIntExtra(BluetoothDevice.EXTRA_REASON,
BluetoothDevice.ERROR);
cachedDeviceMgr.showUnbondMessage(device, reason);
}
} else if (action.equals(BluetoothHeadset.ACTION_STATE_CHANGED)) {
int newState = intent.getIntExtra(BluetoothHeadset.EXTRA_STATE, 0);
int oldState = intent.getIntExtra(BluetoothHeadset.EXTRA_PREVIOUS_STATE, 0);
if (newState == BluetoothHeadset.STATE_DISCONNECTED &&
oldState == BluetoothHeadset.STATE_CONNECTING) {
Log.i(TAG, "Failed to connect BT headset");
}
mManager.getCachedDeviceManager().onProfileStateChanged(device,
Profile.HEADSET, newState);
} else if (action.equals(BluetoothA2dp.ACTION_SINK_STATE_CHANGED)) {
int newState = intent.getIntExtra(BluetoothA2dp.EXTRA_SINK_STATE, 0);
int oldState = intent.getIntExtra(BluetoothA2dp.EXTRA_PREVIOUS_SINK_STATE, 0);
if (newState == BluetoothA2dp.STATE_DISCONNECTED &&
oldState == BluetoothA2dp.STATE_CONNECTING) {
Log.i(TAG, "Failed to connect BT A2DP");
}
mManager.getCachedDeviceManager().onProfileStateChanged(device,
Profile.A2DP, newState);
} else if (action.equals(BluetoothDevice.ACTION_CLASS_CHANGED)) {
mManager.getCachedDeviceManager().onBtClassChanged(device);
} else if (action.equals(BluetoothDevice.ACTION_UUID)) {
mManager.getCachedDeviceManager().onUuidChanged(device);
} else if (action.equals(BluetoothDevice.ACTION_PAIRING_CANCEL)) {
int errorMsg = R.string.bluetooth_pairing_error_message;
mManager.showError(device, R.string.bluetooth_error_title, errorMsg);
} else if (action.equals(Intent.ACTION_DOCK_EVENT)) {
// Remove if unpair device upon undocking
int anythingButUnDocked = Intent.EXTRA_DOCK_STATE_UNDOCKED + 1;
int state = intent.getIntExtra(Intent.EXTRA_DOCK_STATE, anythingButUnDocked);
if (state == Intent.EXTRA_DOCK_STATE_UNDOCKED) {
if (device != null && device.getBondState() == BluetoothDevice.BOND_NONE) {
mManager.getCachedDeviceManager().onDeviceDisappeared(device);
}
}
}
}
};
public BluetoothEventRedirector(LocalBluetoothManager localBluetoothManager) {
mManager = localBluetoothManager;
}
public void start() {
IntentFilter filter = new IntentFilter();
// Bluetooth on/off broadcasts
filter.addAction(BluetoothAdapter.ACTION_STATE_CHANGED);
// Discovery broadcasts
filter.addAction(BluetoothAdapter.ACTION_DISCOVERY_STARTED);
filter.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
filter.addAction(BluetoothDevice.ACTION_DISAPPEARED);
filter.addAction(BluetoothDevice.ACTION_FOUND);
filter.addAction(BluetoothDevice.ACTION_NAME_CHANGED);
// Pairing broadcasts
filter.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED);
filter.addAction(BluetoothDevice.ACTION_PAIRING_CANCEL);
// Fine-grained state broadcasts
filter.addAction(BluetoothA2dp.ACTION_SINK_STATE_CHANGED);
filter.addAction(BluetoothHeadset.ACTION_STATE_CHANGED);
filter.addAction(BluetoothDevice.ACTION_CLASS_CHANGED);
filter.addAction(BluetoothDevice.ACTION_UUID);
// Dock event broadcasts
filter.addAction(Intent.ACTION_DOCK_EVENT);
mManager.getContext().registerReceiver(mBroadcastReceiver, filter);
}
public void stop() {
mManager.getContext().unregisterReceiver(mBroadcastReceiver);
}
// This can't be called from a broadcast receiver where the filter is set in the Manifest.
private String getDockedDeviceAddress(Context context) {
// This works only because these broadcast intents are "sticky"
Intent i = context.registerReceiver(null, new IntentFilter(Intent.ACTION_DOCK_EVENT));
if (i != null) {
int state = i.getIntExtra(Intent.EXTRA_DOCK_STATE, Intent.EXTRA_DOCK_STATE_UNDOCKED);
if (state != Intent.EXTRA_DOCK_STATE_UNDOCKED) {
BluetoothDevice device = i.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
if (device != null) {
return device.getAddress();
}
}
}
return null;
}
private void persistDiscoveringTimestamp() {
SharedPreferences.Editor editor = mManager.getSharedPreferences().edit();
editor.putLong(LocalBluetoothManager.SHARED_PREFERENCES_KEY_DISCOVERING_TIMESTAMP,
System.currentTimeMillis());
editor.apply();
}
}
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