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      1 /*
      2  * Copyright (C) 2007 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.Application;
     20 import android.content.Context;
     21 import android.preference.PreferenceManager;
     22 
     23 public class CalendarApplication extends Application {
     24 
     25     // TODO: get rid of this global member.
     26     public Event currentEvent = null;
     27 
     28     /**
     29      * The Screen class defines a node in a linked list.  This list contains
     30      * the screens that were visited, with the more recently visited screens
     31      * coming earlier in the list.  The "next" pointer of the head node
     32      * points to the first element in the list (the most recently visited
     33      * screen).
     34      */
     35     static class Screen {
     36         public int id;
     37         public Screen next;
     38         public Screen previous;
     39 
     40         public Screen(int id) {
     41             this.id = id;
     42             next = this;
     43             previous = this;
     44         }
     45 
     46         // Adds the given node to the list after this one
     47         public void insert(Screen node) {
     48             node.next = next;
     49             node.previous = this;
     50             next.previous = node;
     51             next = node;
     52         }
     53 
     54         // Removes this node from the list it is in.
     55         public void unlink() {
     56             next.previous = previous;
     57             previous.next = next;
     58         }
     59     }
     60 
     61     public static final int MONTH_VIEW_ID = 0;
     62     public static final int WEEK_VIEW_ID = 1;
     63     public static final int DAY_VIEW_ID = 2;
     64     public static final int AGENDA_VIEW_ID = 3;
     65 
     66     public static final String[] ACTIVITY_NAMES = new String[] {
     67         MonthActivity.class.getName(),
     68         WeekActivity.class.getName(),
     69         DayActivity.class.getName(),
     70         AgendaActivity.class.getName(),
     71     };
     72 
     73     @Override
     74     public void onCreate() {
     75         super.onCreate();
     76 
     77         /*
     78          * Ensure the default values are set for any receiver, activity,
     79          * service, etc. of Calendar
     80          */
     81         CalendarPreferenceActivity.setDefaultValues(this);
     82     }
     83 
     84 }
     85