Home | History | Annotate | Download | only in calendar 
      1 /*
      2  * Copyright (C) 2009 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.calendar;
     18 
     19 import android.app.Activity;
     20 import android.app.AlertDialog;
     21 import android.content.DialogInterface;
     22 import android.widget.Button;
     23 
     24 /**
     25  * A helper class for editing the response to an invitation when the invitation
     26  * is a repeating event.
     27  */
     28 public class EditResponseHelper implements DialogInterface.OnClickListener {
     29     private final Activity mParent;
     30     private int mWhichEvents = -1;
     31     private AlertDialog mAlertDialog;
     32 
     33     /**
     34      * This callback is passed in to this object when this object is created
     35      * and is invoked when the "Ok" button is selected.
     36      */
     37     private DialogInterface.OnClickListener mDialogListener;
     38 
     39     public EditResponseHelper(Activity parent) {
     40         mParent = parent;
     41     }
     42 
     43     public void setOnClickListener(DialogInterface.OnClickListener listener) {
     44         mDialogListener = listener;
     45     }
     46 
     47     public int getWhichEvents() {
     48         return mWhichEvents;
     49     }
     50 
     51     public void setWhichEvents(int which) {
     52         mWhichEvents = which;
     53     }
     54 
     55     public void onClick(DialogInterface dialog, int which) {
     56     }
     57 
     58     /**
     59      * This callback is used when a list item is selected
     60      */
     61     private DialogInterface.OnClickListener mListListener =
     62             new DialogInterface.OnClickListener() {
     63         public void onClick(DialogInterface dialog, int which) {
     64             mWhichEvents = which;
     65 
     66             // Enable the "ok" button now that the user has selected which
     67             // events in the series to delete.
     68             Button ok = mAlertDialog.getButton(DialogInterface.BUTTON_POSITIVE);
     69             ok.setEnabled(true);
     70         }
     71     };
     72 
     73     public void showDialog(int whichEvents) {
     74         // We need to have a non-null listener, otherwise we get null when
     75         // we try to fetch the "Ok" button.
     76         if (mDialogListener == null) {
     77             mDialogListener = this;
     78         }
     79         AlertDialog dialog = new AlertDialog.Builder(mParent).setTitle(
     80                 R.string.change_response_title).setIconAttribute(android.R.attr.alertDialogIcon)
     81                 .setSingleChoiceItems(R.array.change_response_labels, whichEvents, mListListener)
     82                 .setPositiveButton(android.R.string.ok, mDialogListener)
     83                 .setNegativeButton(android.R.string.cancel, null).show();
     84         mAlertDialog = dialog;
     85 
     86         if (whichEvents == -1) {
     87             // Disable the "Ok" button until the user selects which events to
     88             // delete.
     89             Button ok = dialog.getButton(DialogInterface.BUTTON_POSITIVE);
     90             ok.setEnabled(false);
     91         }
     92     }
     93 }
     94