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/*
* Copyright (C) 2017 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.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.Context;
import android.util.Log;
import androidx.annotation.VisibleForTesting;
import com.android.settings.R;
import com.android.settings.widget.SummaryUpdater;
import com.android.settingslib.bluetooth.BluetoothCallback;
import com.android.settingslib.bluetooth.CachedBluetoothDevice;
import com.android.settingslib.bluetooth.LocalBluetoothManager;
import java.util.Set;
/**
* Helper class that listeners to bluetooth callback and notify client when there is update in
* bluetooth summary info.
*/
public final class BluetoothSummaryUpdater extends SummaryUpdater implements BluetoothCallback {
private static final String TAG = "BluetoothSummaryUpdater";
private final BluetoothAdapter mBluetoothAdapter;
private final LocalBluetoothManager mBluetoothManager;
public BluetoothSummaryUpdater(Context context, OnSummaryChangeListener listener,
LocalBluetoothManager bluetoothManager) {
super(context, listener);
mBluetoothManager = bluetoothManager;
mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
}
@Override
public void onBluetoothStateChanged(int bluetoothState) {
notifyChangeIfNeeded();
}
@Override
public void onConnectionStateChanged(CachedBluetoothDevice cachedDevice, int state) {
notifyChangeIfNeeded();
}
@Override
public void register(boolean listening) {
if (mBluetoothAdapter == null) {
return;
}
if (listening) {
notifyChangeIfNeeded();
mBluetoothManager.getEventManager().registerCallback(this);
} else {
mBluetoothManager.getEventManager().unregisterCallback(this);
}
}
@Override
public String getSummary() {
if (mBluetoothAdapter == null || !mBluetoothAdapter.isEnabled()) {
return mContext.getString(R.string.bluetooth_disabled);
}
switch (mBluetoothAdapter.getConnectionState()) {
case BluetoothAdapter.STATE_CONNECTED:
return getConnectedDeviceSummary();
case BluetoothAdapter.STATE_CONNECTING:
return mContext.getString(R.string.bluetooth_connecting);
case BluetoothAdapter.STATE_DISCONNECTING:
return mContext.getString(R.string.bluetooth_disconnecting);
default:
return mContext.getString(R.string.disconnected);
}
}
@VisibleForTesting
String getConnectedDeviceSummary() {
String deviceName = null;
int count = 0;
final Set<BluetoothDevice> devices = mBluetoothAdapter.getBondedDevices();
if (devices == null) {
Log.e(TAG, "getConnectedDeviceSummary, bonded devices are null");
return mContext.getString(R.string.bluetooth_disabled);
} else if (devices.isEmpty()) {
Log.e(TAG, "getConnectedDeviceSummary, no bonded devices");
return mContext.getString(R.string.disconnected);
}
for (BluetoothDevice device : devices) {
if (device.isConnected()) {
deviceName = device.getName();
count++;
if (count > 1) {
break;
}
}
}
if (deviceName == null) {
Log.e(TAG, "getConnectedDeviceSummary, deviceName is null, numBondedDevices="
+ devices.size());
for (BluetoothDevice device : devices) {
Log.e(TAG, "getConnectedDeviceSummary, device=" + device.getName() + "["
+ device.getAddress() + "]" + ", isConnected=" + device.isConnected());
}
return mContext.getString(R.string.disconnected);
}
return count > 1 ? mContext.getString(R.string.bluetooth_connected_multiple_devices_summary)
: mContext.getString(R.string.bluetooth_connected_summary, deviceName);
}
}
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