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      1 /*
      2  * Copyright (C) 2011 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 
     17 package com.android.settings.bluetooth;
     18 
     19 import android.app.AlertDialog;
     20 import android.bluetooth.BluetoothClass;
     21 import android.bluetooth.BluetoothProfile;
     22 import android.content.Context;
     23 import android.content.DialogInterface;
     24 import android.widget.Toast;
     25 
     26 import com.android.settings.R;
     27 
     28 /**
     29  * Utils is a helper class that contains constants for various
     30  * Android resource IDs, debug logging flags, and static methods
     31  * for creating dialogs.
     32  */
     33 final class Utils {
     34     static final boolean V = false; // verbose logging
     35     static final boolean D = true;  // regular logging
     36 
     37     private Utils() {
     38     }
     39 
     40     public static int getConnectionStateSummary(int connectionState) {
     41         switch (connectionState) {
     42         case BluetoothProfile.STATE_CONNECTED:
     43             return R.string.bluetooth_connected;
     44         case BluetoothProfile.STATE_CONNECTING:
     45             return R.string.bluetooth_connecting;
     46         case BluetoothProfile.STATE_DISCONNECTED:
     47             return R.string.bluetooth_disconnected;
     48         case BluetoothProfile.STATE_DISCONNECTING:
     49             return R.string.bluetooth_disconnecting;
     50         default:
     51             return 0;
     52         }
     53     }
     54 
     55     // Create (or recycle existing) and show disconnect dialog.
     56     static AlertDialog showDisconnectDialog(Context context,
     57             AlertDialog dialog,
     58             DialogInterface.OnClickListener disconnectListener,
     59             CharSequence title, CharSequence message) {
     60         if (dialog == null) {
     61             dialog = new AlertDialog.Builder(context)
     62                     .setPositiveButton(android.R.string.ok, disconnectListener)
     63                     .setNegativeButton(android.R.string.cancel, null)
     64                     .create();
     65         } else {
     66             if (dialog.isShowing()) {
     67                 dialog.dismiss();
     68             }
     69             // use disconnectListener for the correct profile(s)
     70             CharSequence okText = context.getText(android.R.string.ok);
     71             dialog.setButton(DialogInterface.BUTTON_POSITIVE,
     72                     okText, disconnectListener);
     73         }
     74         dialog.setTitle(title);
     75         dialog.setMessage(message);
     76         dialog.show();
     77         return dialog;
     78     }
     79 
     80     // TODO: wire this up to show connection errors...
     81     static void showConnectingError(Context context, String name) {
     82         // if (!mIsConnectingErrorPossible) {
     83         //     return;
     84         // }
     85         // mIsConnectingErrorPossible = false;
     86 
     87         showError(context, name, R.string.bluetooth_connecting_error_message);
     88     }
     89 
     90     static void showError(Context context, String name, int messageResId) {
     91         String message = context.getString(messageResId, name);
     92         LocalBluetoothManager manager = LocalBluetoothManager.getInstance(context);
     93         Context activity = manager.getForegroundActivity();
     94         if(manager.isForegroundActivity()) {
     95             new AlertDialog.Builder(activity)
     96                 .setIcon(android.R.drawable.ic_dialog_alert)
     97                 .setTitle(R.string.bluetooth_error_title)
     98                 .setMessage(message)
     99                 .setPositiveButton(android.R.string.ok, null)
    100                 .show();
    101         } else {
    102             Toast.makeText(context, message, Toast.LENGTH_SHORT).show();
    103         }
    104     }
    105 }
    106