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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 static android.os.UserManager.DISALLOW_CONFIG_BLUETOOTH;
import android.app.settings.SettingsEnums;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.Context;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;
import androidx.annotation.VisibleForTesting;
import com.android.settings.R;
import com.android.settingslib.bluetooth.BluetoothDeviceFilter;
import com.android.settingslib.bluetooth.CachedBluetoothDevice;
import com.android.settingslib.search.Indexable;
import com.android.settingslib.widget.FooterPreference;
/**
* BluetoothPairingDetail is a page to scan bluetooth devices and pair them.
*/
public class BluetoothPairingDetail extends DeviceListPreferenceFragment implements
Indexable {
private static final String TAG = "BluetoothPairingDetail";
@VisibleForTesting
static final String KEY_AVAIL_DEVICES = "available_devices";
@VisibleForTesting
static final String KEY_FOOTER_PREF = "footer_preference";
@VisibleForTesting
BluetoothProgressCategory mAvailableDevicesCategory;
@VisibleForTesting
FooterPreference mFooterPreference;
@VisibleForTesting
AlwaysDiscoverable mAlwaysDiscoverable;
private boolean mInitialScanStarted;
public BluetoothPairingDetail() {
super(DISALLOW_CONFIG_BLUETOOTH);
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
mInitialScanStarted = false;
mAlwaysDiscoverable = new AlwaysDiscoverable(getContext());
}
@Override
public void onStart() {
super.onStart();
if (mLocalManager == null){
Log.e(TAG, "Bluetooth is not supported on this device");
return;
}
updateBluetooth();
mAvailableDevicesCategory.setProgress(mBluetoothAdapter.isDiscovering());
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
use(BluetoothDeviceRenamePreferenceController.class).setFragment(this);
}
@VisibleForTesting
void updateBluetooth() {
if (mBluetoothAdapter.isEnabled()) {
updateContent(mBluetoothAdapter.getState());
} else {
// Turn on bluetooth if it is disabled
mBluetoothAdapter.enable();
}
}
@Override
public void onStop() {
super.onStop();
if (mLocalManager == null){
Log.e(TAG, "Bluetooth is not supported on this device");
return;
}
// Make the device only visible to connected devices.
mAlwaysDiscoverable.stop();
disableScanning();
}
@Override
void initPreferencesFromPreferenceScreen() {
mAvailableDevicesCategory = (BluetoothProgressCategory) findPreference(KEY_AVAIL_DEVICES);
mFooterPreference = (FooterPreference) findPreference(KEY_FOOTER_PREF);
mFooterPreference.setSelectable(false);
}
@Override
public int getMetricsCategory() {
return SettingsEnums.BLUETOOTH_PAIRING;
}
@Override
void enableScanning() {
// Clear all device states before first scan
if (!mInitialScanStarted) {
if (mAvailableDevicesCategory != null) {
removeAllDevices();
}
mLocalManager.getCachedDeviceManager().clearNonBondedDevices();
mInitialScanStarted = true;
}
super.enableScanning();
}
@Override
void onDevicePreferenceClick(BluetoothDevicePreference btPreference) {
disableScanning();
super.onDevicePreferenceClick(btPreference);
}
@Override
public void onScanningStateChanged(boolean started) {
super.onScanningStateChanged(started);
started |= mScanEnabled;
mAvailableDevicesCategory.setProgress(started);
}
@VisibleForTesting
void updateContent(int bluetoothState) {
switch (bluetoothState) {
case BluetoothAdapter.STATE_ON:
mDevicePreferenceMap.clear();
mBluetoothAdapter.enable();
addDeviceCategory(mAvailableDevicesCategory,
R.string.bluetooth_preference_found_media_devices,
BluetoothDeviceFilter.ALL_FILTER, mInitialScanStarted);
updateFooterPreference(mFooterPreference);
mAlwaysDiscoverable.start();
enableScanning();
break;
case BluetoothAdapter.STATE_OFF:
finish();
break;
}
}
@Override
public void onBluetoothStateChanged(int bluetoothState) {
super.onBluetoothStateChanged(bluetoothState);
updateContent(bluetoothState);
if (bluetoothState == BluetoothAdapter.STATE_ON) {
showBluetoothTurnedOnToast();
}
}
@Override
public void onDeviceBondStateChanged(CachedBluetoothDevice cachedDevice, int bondState) {
if (bondState == BluetoothDevice.BOND_BONDED) {
// If one device is connected(bonded), then close this fragment.
finish();
return;
}
if (mSelectedDevice != null && cachedDevice != null) {
BluetoothDevice device = cachedDevice.getDevice();
if (device != null && mSelectedDevice.equals(device)
&& bondState == BluetoothDevice.BOND_NONE) {
// If currently selected device failed to bond, restart scanning
enableScanning();
}
}
}
@Override
public void onProfileConnectionStateChanged(CachedBluetoothDevice cachedDevice, int state,
int bluetoothProfile) {
// This callback is used to handle the case that bonded device is connected in pairing list.
// 1. If user selected multiple bonded devices in pairing list, after connected
// finish this page.
// 2. If the bonded devices auto connected in paring list, after connected it will be
// removed from paring list.
if (cachedDevice != null && cachedDevice.isConnected()) {
final BluetoothDevice device = cachedDevice.getDevice();
if (device != null && mSelectedList.contains(device)) {
finish();
} else if (mDevicePreferenceMap.containsKey(cachedDevice)) {
onDeviceDeleted(cachedDevice);
}
}
}
@Override
public int getHelpResource() {
return R.string.help_url_bluetooth;
}
@Override
protected String getLogTag() {
return TAG;
}
@Override
protected int getPreferenceScreenResId() {
return R.xml.bluetooth_pairing_detail;
}
@Override
public String getDeviceListKey() {
return KEY_AVAIL_DEVICES;
}
@VisibleForTesting
void showBluetoothTurnedOnToast() {
Toast.makeText(getContext(), R.string.connected_device_bluetooth_turned_on_toast,
Toast.LENGTH_SHORT).show();
}
}
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