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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 
Utils()37     private Utils() {
38     }
39 
getConnectionStateSummary(int connectionState)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.
showDisconnectDialog(Context context, AlertDialog dialog, DialogInterface.OnClickListener disconnectListener, CharSequence title, CharSequence message)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...
showConnectingError(Context context, String name)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 
showError(Context context, String name, int messageResId)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