app_Settings/src/com/android/settings/bluetooth/BluetoothPairingRequest.java

/*
 * 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 android.bluetooth.BluetoothCsipSetCoordinator;
import android.bluetooth.BluetoothDevice;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.PowerManager;
import android.os.UserHandle;
import android.text.TextUtils;
import android.util.Log;

import com.android.settingslib.bluetooth.CachedBluetoothDevice;
import com.android.settingslib.bluetooth.LocalBluetoothManager;

/**
 * BluetoothPairingRequest is a receiver for any Bluetooth pairing request. It
 * checks if the Bluetooth Settings is currently visible and brings up the PIN, the passkey or a
 * confirmation entry dialog. Otherwise it starts the BluetoothPairingService which
 * starts a notification in the status bar that can be clicked to bring up the same dialog.
 */
public final class BluetoothPairingRequest extends BroadcastReceiver {
    private static final String TAG = "BluetoothPairingRequest";

    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();
        if (action == null) {
            return;
        }

        BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
        final LocalBluetoothManager mBluetoothManager = Utils.getLocalBtManager(context);
        if (TextUtils.equals(action, BluetoothDevice.ACTION_PAIRING_REQUEST)) {
            PowerManager powerManager = context.getSystemService(PowerManager.class);
            int pairingVariant = intent.getIntExtra(BluetoothDevice.EXTRA_PAIRING_VARIANT,
                    BluetoothDevice.ERROR);
            boolean shouldShowDialog = LocalBluetoothPreferences.shouldShowDialogInForeground(
                    context, device);

            Log.d(TAG,
                "Receive ACTION_PAIRING_REQUEST pairingVariant=" + pairingVariant
                    + " canBondWithoutDialog=" + device.canBondWithoutDialog()
                    + " isOngoingPairByCsip="
                    + mBluetoothManager.getCachedDeviceManager().isOngoingPairByCsip(device)
                    + " isLateBonding="
                    + mBluetoothManager.getCachedDeviceManager().isLateBonding(device));

            /* Skips consent pairing dialog if the device was recently associated with CDM
             * or if the device is a member of the coordinated set and is not bonding late.
             */
            if (pairingVariant == BluetoothDevice.PAIRING_VARIANT_CONSENT
                && (device.canBondWithoutDialog()
                    || (mBluetoothManager.getCachedDeviceManager().isOngoingPairByCsip(device)
                        && !mBluetoothManager.getCachedDeviceManager().isLateBonding(device)))) {
                device.setPairingConfirmation(true);
            } else if (powerManager.isInteractive() && shouldShowDialog) {
                // Since the screen is on and the BT-related activity is in the foreground,
                // just open the dialog
                // convert broadcast intent into activity intent (same action string)
                Intent pairingIntent = BluetoothPairingService.getPairingDialogIntent(
                    context, intent, BluetoothDevice.EXTRA_PAIRING_INITIATOR_FOREGROUND);

                context.startActivityAsUser(pairingIntent, UserHandle.CURRENT);
            } else {
                // Put up a notification that leads to the dialog
                intent.setClass(context, BluetoothPairingService.class);
                intent.setAction(BluetoothDevice.ACTION_PAIRING_REQUEST);
                context.startServiceAsUser(intent, UserHandle.CURRENT);
            }
        } else if (TextUtils.equals(action,
                BluetoothCsipSetCoordinator.ACTION_CSIS_SET_MEMBER_AVAILABLE)) {
            Log.d(TAG, "Receive ACTION_CSIS_SET_MEMBER_AVAILABLE");
            if (device == null) {
                return;
            }

            final int groupId = intent.getIntExtra(BluetoothCsipSetCoordinator.EXTRA_CSIS_GROUP_ID,
                    BluetoothCsipSetCoordinator.GROUP_ID_INVALID);
            if (groupId == BluetoothCsipSetCoordinator.GROUP_ID_INVALID) {
                return;
            }

            mBluetoothManager.getCachedDeviceManager().pairDeviceByCsip(device, groupId);
        }
    }
}