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.BluetoothDevice; 21 import android.bluetooth.BluetoothProfile; 22 import android.content.Context; 23 import android.content.DialogInterface; 24 import android.support.annotation.VisibleForTesting; 25 import android.widget.Toast; 26 27 import com.android.internal.logging.nano.MetricsProto.MetricsEvent; 28 import com.android.settings.R; 29 import com.android.settings.overlay.FeatureFactory; 30 import com.android.settingslib.bluetooth.LocalBluetoothManager; 31 import com.android.settingslib.bluetooth.LocalBluetoothManager.BluetoothManagerCallback; 32 import com.android.settingslib.bluetooth.Utils.ErrorListener; 33 34 /** 35 * Utils is a helper class that contains constants for various 36 * Android resource IDs, debug logging flags, and static methods 37 * for creating dialogs. 38 */ 39 public final class Utils { 40 static final boolean V = com.android.settingslib.bluetooth.Utils.V; // verbose logging 41 static final boolean D = com.android.settingslib.bluetooth.Utils.D; // regular logging 42 43 private Utils() { 44 } 45 46 public static int getConnectionStateSummary(int connectionState) { 47 switch (connectionState) { 48 case BluetoothProfile.STATE_CONNECTED: 49 return R.string.bluetooth_connected; 50 case BluetoothProfile.STATE_CONNECTING: 51 return R.string.bluetooth_connecting; 52 case BluetoothProfile.STATE_DISCONNECTED: 53 return R.string.bluetooth_disconnected; 54 case BluetoothProfile.STATE_DISCONNECTING: 55 return R.string.bluetooth_disconnecting; 56 default: 57 return 0; 58 } 59 } 60 61 // Create (or recycle existing) and show disconnect dialog. 62 static AlertDialog showDisconnectDialog(Context context, 63 AlertDialog dialog, 64 DialogInterface.OnClickListener disconnectListener, 65 CharSequence title, CharSequence message) { 66 if (dialog == null) { 67 dialog = new AlertDialog.Builder(context) 68 .setPositiveButton(android.R.string.ok, disconnectListener) 69 .setNegativeButton(android.R.string.cancel, null) 70 .create(); 71 } else { 72 if (dialog.isShowing()) { 73 dialog.dismiss(); 74 } 75 // use disconnectListener for the correct profile(s) 76 CharSequence okText = context.getText(android.R.string.ok); 77 dialog.setButton(DialogInterface.BUTTON_POSITIVE, 78 okText, disconnectListener); 79 } 80 dialog.setTitle(title); 81 dialog.setMessage(message); 82 dialog.show(); 83 return dialog; 84 } 85 86 // TODO: wire this up to show connection errors... 87 static void showConnectingError(Context context, String name) { 88 showConnectingError(context, name, getLocalBtManager(context)); 89 } 90 91 @VisibleForTesting 92 static void showConnectingError(Context context, String name, LocalBluetoothManager manager) { 93 FeatureFactory.getFactory(context).getMetricsFeatureProvider().visible(context, 94 MetricsEvent.VIEW_UNKNOWN, MetricsEvent.ACTION_SETTINGS_BLUETOOTH_CONNECT_ERROR); 95 showError(context, name, R.string.bluetooth_connecting_error_message, manager); 96 } 97 98 static void showError(Context context, String name, int messageResId) { 99 showError(context, name, messageResId, getLocalBtManager(context)); 100 } 101 102 private static void showError(Context context, String name, int messageResId, 103 LocalBluetoothManager manager) { 104 String message = context.getString(messageResId, name); 105 Context activity = manager.getForegroundActivity(); 106 if (manager.isForegroundActivity()) { 107 new AlertDialog.Builder(activity) 108 .setTitle(R.string.bluetooth_error_title) 109 .setMessage(message) 110 .setPositiveButton(android.R.string.ok, null) 111 .show(); 112 } else { 113 Toast.makeText(context, message, Toast.LENGTH_SHORT).show(); 114 } 115 } 116 117 public static LocalBluetoothManager getLocalBtManager(Context context) { 118 return LocalBluetoothManager.getInstance(context, mOnInitCallback); 119 } 120 121 public static String createRemoteName(Context context, BluetoothDevice device) { 122 String mRemoteName = device != null ? device.getAliasName() : null; 123 124 if (mRemoteName == null) { 125 mRemoteName = context.getString(R.string.unknown); 126 } 127 return mRemoteName; 128 } 129 130 private static final ErrorListener mErrorListener = new ErrorListener() { 131 @Override 132 public void onShowError(Context context, String name, int messageResId) { 133 showError(context, name, messageResId); 134 } 135 }; 136 137 private static final BluetoothManagerCallback mOnInitCallback = new BluetoothManagerCallback() { 138 @Override 139 public void onBluetoothManagerInitialized(Context appContext, 140 LocalBluetoothManager bluetoothManager) { 141 com.android.settingslib.bluetooth.Utils.setErrorListener(mErrorListener); 142 } 143 }; 144 } 145