Home | History | Annotate | Download | only in handler 
      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package android.car.usb.handler;
     17 
     18 import android.app.AlertDialog;
     19 import android.content.Context;
     20 import android.content.DialogInterface;
     21 import android.preference.Preference;
     22 
     23 /**
     24  * Setting preference used for USB devices.
     25  */
     26 public final class UsbDevicePreference extends Preference
     27         implements Preference.OnPreferenceClickListener {
     28 
     29     /**
     30      * Callbacks to handle preference changes.
     31      */
     32     public interface UsbDevicePreferenceCallback {
     33         /** Preference deleted */
     34         void onUsbDevicePreferenceDelete(Preference preference, UsbDeviceSettings settings);
     35     }
     36 
     37     private final UsbDeviceSettings mUsbDeviceSettings;
     38     private final UsbDevicePreferenceCallback mCallback;
     39 
     40     public UsbDevicePreference(Context context, UsbDeviceSettings usbDeviceSettings,
     41             UsbDevicePreferenceCallback callback) {
     42         super(context);
     43         mCallback = callback;
     44         mUsbDeviceSettings = usbDeviceSettings;
     45         setTitle(usbDeviceSettings.getDeviceName());
     46         if (usbDeviceSettings.getHandler() != null) {
     47             setSummary(usbDeviceSettings.getHandler().flattenToShortString());
     48         }
     49         setOnPreferenceClickListener(this);
     50     }
     51 
     52     @Override
     53     public boolean onPreferenceClick(final Preference preference) {
     54         new AlertDialog.Builder(getContext())
     55                 .setTitle(R.string.usb_pref_delete_title)
     56                 .setMessage(String.format(
     57                         getContext().getResources().getString(R.string.usb_pref_delete_message),
     58                         mUsbDeviceSettings.getDeviceName()))
     59                 .setIcon(android.R.drawable.ic_dialog_alert)
     60                 .setPositiveButton(R.string.usb_pref_delete_yes,
     61                         new DialogInterface.OnClickListener() {
     62                             @Override
     63                             public void onClick(DialogInterface dialog, int whichButton) {
     64                                 mCallback.onUsbDevicePreferenceDelete(
     65                                         preference, mUsbDeviceSettings);
     66                             }})
     67                 .setNegativeButton(R.string.usb_pref_delete_cancel, null)
     68                 .show();
     69         return true;
     70     }
     71 }
     72