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/*
* Copyright (C) 2011 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.bluetooth.BluetoothDevicePicker;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.UserManager;
import android.view.Menu;
import android.view.MenuInflater;
import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
import com.android.settings.R;
import com.android.settings.core.PreferenceController;
import com.android.settingslib.bluetooth.CachedBluetoothDevice;
import static android.os.UserManager.DISALLOW_CONFIG_BLUETOOTH;
import java.util.List;
/**
* BluetoothSettings is the Settings screen for Bluetooth configuration and
* connection management.
*/
public final class DevicePickerFragment extends DeviceListPreferenceFragment {
private static final String KEY_BT_DEVICE_LIST = "bt_device_list";
private static final String TAG = "DevicePickerFragment";
public DevicePickerFragment() {
super(null /* Not tied to any user restrictions. */);
}
private boolean mNeedAuth;
private String mLaunchPackage;
private String mLaunchClass;
private boolean mScanAllowed;
@Override
void initPreferencesFromPreferenceScreen() {
Intent intent = getActivity().getIntent();
mNeedAuth = intent.getBooleanExtra(BluetoothDevicePicker.EXTRA_NEED_AUTH, false);
setFilter(intent.getIntExtra(BluetoothDevicePicker.EXTRA_FILTER_TYPE,
BluetoothDevicePicker.FILTER_TYPE_ALL));
mLaunchPackage = intent.getStringExtra(BluetoothDevicePicker.EXTRA_LAUNCH_PACKAGE);
mLaunchClass = intent.getStringExtra(BluetoothDevicePicker.EXTRA_LAUNCH_CLASS);
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
}
@Override
public int getMetricsCategory() {
return MetricsEvent.BLUETOOTH_DEVICE_PICKER;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getActivity().setTitle(getString(R.string.device_picker));
UserManager um = (UserManager) getSystemService(Context.USER_SERVICE);
mScanAllowed = !um.hasUserRestriction(DISALLOW_CONFIG_BLUETOOTH);
setHasOptionsMenu(true);
}
@Override
public void onStart() {
super.onStart();
addCachedDevices();
mSelectedDevice = null;
if (mScanAllowed) {
enableScanning();
}
}
@Override
public void onStop() {
// Try disable scanning no matter what, no effect if enableScanning has not been called
disableScanning();
super.onStop();
}
@Override
public void onDestroy() {
super.onDestroy();
/* Check if any device was selected, if no device selected
* send ACTION_DEVICE_SELECTED with a null device, otherwise
* don't do anything */
if (mSelectedDevice == null) {
sendDevicePickedIntent(null);
}
}
@Override
void onDevicePreferenceClick(BluetoothDevicePreference btPreference) {
disableScanning();
LocalBluetoothPreferences.persistSelectedDeviceInPicker(
getActivity(), mSelectedDevice.getAddress());
if ((btPreference.getCachedDevice().getBondState() ==
BluetoothDevice.BOND_BONDED) || !mNeedAuth) {
sendDevicePickedIntent(mSelectedDevice);
finish();
} else {
super.onDevicePreferenceClick(btPreference);
}
}
public void onDeviceBondStateChanged(CachedBluetoothDevice cachedDevice,
int bondState) {
BluetoothDevice device = cachedDevice.getDevice();
if (!device.equals(mSelectedDevice)) {
return;
}
if (bondState == BluetoothDevice.BOND_BONDED) {
sendDevicePickedIntent(device);
finish();
} else if (bondState == BluetoothDevice.BOND_NONE) {
enableScanning();
}
}
@Override
public void onBluetoothStateChanged(int bluetoothState) {
super.onBluetoothStateChanged(bluetoothState);
if (bluetoothState == BluetoothAdapter.STATE_ON) {
enableScanning();
}
}
@Override
protected String getLogTag() {
return TAG;
}
@Override
protected int getPreferenceScreenResId() {
return R.xml.device_picker;
}
@Override
protected List<PreferenceController> getPreferenceControllers(Context context) {
return null;
}
@Override
public String getDeviceListKey() {
return KEY_BT_DEVICE_LIST;
}
private void sendDevicePickedIntent(BluetoothDevice device) {
Intent intent = new Intent(BluetoothDevicePicker.ACTION_DEVICE_SELECTED);
intent.putExtra(BluetoothDevice.EXTRA_DEVICE, device);
if (mLaunchPackage != null && mLaunchClass != null) {
intent.setClassName(mLaunchPackage, mLaunchClass);
}
getActivity().sendBroadcast(intent);
}
}
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