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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.systemui.statusbar.policy;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothAdapter.BluetoothStateChangeCallback;
import android.bluetooth.BluetoothDevice;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.view.View;
import android.widget.ImageView;
import com.android.systemui.R;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Set;
public class BluetoothController extends BroadcastReceiver {
private static final String TAG = "StatusBar.BluetoothController";
private Context mContext;
private ArrayList<ImageView> mIconViews = new ArrayList<ImageView>();
private int mIconId = R.drawable.stat_sys_data_bluetooth;
private int mContentDescriptionId = 0;
private boolean mEnabled = false;
private Set<BluetoothDevice> mBondedDevices = new HashSet<BluetoothDevice>();
private ArrayList<BluetoothStateChangeCallback> mChangeCallbacks =
new ArrayList<BluetoothStateChangeCallback>();
public BluetoothController(Context context) {
mContext = context;
IntentFilter filter = new IntentFilter();
filter.addAction(BluetoothAdapter.ACTION_STATE_CHANGED);
filter.addAction(BluetoothAdapter.ACTION_CONNECTION_STATE_CHANGED);
filter.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED);
context.registerReceiver(this, filter);
final BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
if (adapter != null) {
handleAdapterStateChange(adapter.getState());
handleConnectionStateChange(adapter.getConnectionState());
}
refreshViews();
updateBondedBluetoothDevices();
}
public void addIconView(ImageView v) {
mIconViews.add(v);
}
public void addStateChangedCallback(BluetoothStateChangeCallback cb) {
mChangeCallbacks.add(cb);
}
public void removeStateChangedCallback(BluetoothStateChangeCallback cb) {
mChangeCallbacks.remove(cb);
}
public Set<BluetoothDevice> getBondedBluetoothDevices() {
return mBondedDevices;
}
@Override
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if (action.equals(BluetoothAdapter.ACTION_STATE_CHANGED)) {
handleAdapterStateChange(
intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, BluetoothAdapter.ERROR));
} else if (action.equals(BluetoothAdapter.ACTION_CONNECTION_STATE_CHANGED)) {
handleConnectionStateChange(
intent.getIntExtra(BluetoothAdapter.EXTRA_CONNECTION_STATE,
BluetoothAdapter.STATE_DISCONNECTED));
} else if (action.equals(BluetoothDevice.ACTION_BOND_STATE_CHANGED)) {
// Fall through and update bonded devices and refresh view
}
refreshViews();
updateBondedBluetoothDevices();
}
private void updateBondedBluetoothDevices() {
mBondedDevices.clear();
BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
if (adapter != null) {
Set<BluetoothDevice> devices = adapter.getBondedDevices();
if (devices != null) {
for (BluetoothDevice device : devices) {
if (device.getBondState() != BluetoothDevice.BOND_NONE) {
mBondedDevices.add(device);
}
}
}
}
}
public void handleAdapterStateChange(int adapterState) {
mEnabled = (adapterState == BluetoothAdapter.STATE_ON);
}
public void handleConnectionStateChange(int connectionState) {
final boolean connected = (connectionState == BluetoothAdapter.STATE_CONNECTED);
if (connected) {
mIconId = R.drawable.stat_sys_data_bluetooth_connected;
mContentDescriptionId = R.string.accessibility_bluetooth_connected;
} else {
mIconId = R.drawable.stat_sys_data_bluetooth;
mContentDescriptionId = R.string.accessibility_bluetooth_disconnected;
}
}
public void refreshViews() {
int N = mIconViews.size();
for (int i=0; i<N; i++) {
ImageView v = mIconViews.get(i);
v.setImageResource(mIconId);
v.setVisibility(mEnabled ? View.VISIBLE : View.GONE);
v.setContentDescription((mContentDescriptionId == 0)
? null
: mContext.getString(mContentDescriptionId));
}
for (BluetoothStateChangeCallback cb : mChangeCallbacks) {
cb.onBluetoothStateChange(mEnabled);
}
}
}
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