1/* 2 * Copyright (C) 2010 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 */ 16package com.android.contacts.interactions; 17 18import com.android.contacts.R; 19 20import android.app.AlertDialog; 21import android.app.Dialog; 22import android.app.DialogFragment; 23import android.content.DialogInterface; 24import android.content.DialogInterface.OnShowListener; 25import android.os.Bundle; 26import android.text.Editable; 27import android.text.TextUtils; 28import android.text.TextWatcher; 29import android.view.LayoutInflater; 30import android.view.View; 31import android.widget.Button; 32import android.widget.EditText; 33 34/** 35 * A common superclass for creating and renaming groups. 36 */ 37public abstract class GroupNameDialogFragment extends DialogFragment 38 implements TextWatcher, OnShowListener { 39 private EditText mEdit; 40 41 protected abstract int getTitleResourceId(); 42 protected abstract void initializeGroupLabelEditText(EditText editText); 43 protected abstract void onCompleted(String groupLabel); 44 45 @Override 46 public Dialog onCreateDialog(Bundle savedInstanceState) { 47 View view = LayoutInflater.from(getActivity()).inflate(R.layout.group_name_dialog, null); 48 mEdit = (EditText) view.findViewById(R.id.group_label); 49 initializeGroupLabelEditText(mEdit); 50 51 mEdit.addTextChangedListener(this); 52 53 AlertDialog dialog = new AlertDialog.Builder(getActivity()) 54 .setIconAttribute(android.R.attr.alertDialogIcon) 55 .setTitle(getTitleResourceId()) 56 .setView(view) 57 .setPositiveButton(android.R.string.ok, 58 new DialogInterface.OnClickListener() { 59 @Override 60 public void onClick(DialogInterface dialog, int whichButton) { 61 onCompleted(mEdit.getText().toString().trim()); 62 } 63 } 64 ) 65 .setNegativeButton(android.R.string.cancel, null) 66 .create(); 67 68 dialog.setOnShowListener(this); 69 return dialog; 70 } 71 72 public void onShow(DialogInterface dialog) { 73 updateOkButtonState((AlertDialog) dialog); 74 } 75 76 @Override 77 public void afterTextChanged(Editable s) { 78 AlertDialog dialog = (AlertDialog) getDialog(); 79 // Make sure the dialog has not already been dismissed or destroyed. 80 if (dialog != null) { 81 updateOkButtonState(dialog); 82 } 83 } 84 85 private void updateOkButtonState(AlertDialog dialog) { 86 Button okButton = dialog.getButton(AlertDialog.BUTTON_POSITIVE); 87 okButton.setEnabled(!TextUtils.isEmpty(mEdit.getText().toString().trim())); 88 } 89 90 @Override 91 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 92 } 93 94 @Override 95 public void onTextChanged(CharSequence s, int start, int before, int count) { 96 } 97} 98