[26] | 1 | //
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| 2 | // PSAlarms.m
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| 3 | // Pester
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| 4 | //
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| 5 | // Created by Nicholas Riley on Fri Oct 11 2002.
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| 6 | // Copyright (c) 2002 Nicholas Riley. All rights reserved.
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| 7 | //
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| 8 |
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| 9 | #import "PSAlarms.h"
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| 10 | #import "PSAlarm.h"
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| 11 |
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| 12 | NSString * const PSAlarmsDidChangeNotification = @"PSAlarmsDidChangeNotification";
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| 13 |
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| 14 | static NSString * const PSPendingAlarms = @"Pester pending alarms"; // NSUserDefaults key
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| 15 |
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| 16 | static PSAlarms *PSAlarmsAllAlarms = nil;
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| 17 |
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| 18 | @implementation PSAlarms
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| 19 |
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| 20 | + (void)setUp; // XXX if you can think of a better name, please be my guest.
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| 21 | {
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| 22 | if (PSAlarmsAllAlarms == nil) {
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| 23 | PSAlarmsAllAlarms = [[self alloc] init];
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| 24 | }
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| 25 | }
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| 26 |
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| 27 | + (PSAlarms *)allAlarms;
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| 28 | {
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| 29 | return PSAlarmsAllAlarms;
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| 30 | }
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| 31 |
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| 32 | - (id)init;
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| 33 | {
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| 34 | if ( (self = [super init]) != nil) {
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| 35 | NS_DURING
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| 36 | NSData *alarmData = [[NSUserDefaults standardUserDefaults] dataForKey: PSPendingAlarms];
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| 37 | if (alarmData != nil) {
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| 38 | alarms = [[NSUnarchiver unarchiveObjectWithData: alarmData] retain];
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| 39 | }
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| 40 | NS_HANDLER
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| 41 | // XXX need better error handling here, don't stomp on data
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| 42 | NSLog(@"An error occurred while attempting to restore the alarm list: %@", localException);
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| 43 | NS_ENDHANDLER
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| 44 | if (alarms == nil) alarms = [[NSMutableArray alloc] init];
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| 45 | [[NSNotificationCenter defaultCenter] addObserver: self selector: @selector(_alarmTimerSet:) name: PSAlarmTimerSetNotification object: nil];
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| 46 | [[NSNotificationCenter defaultCenter] addObserver: self selector: @selector(_alarmTimerExpired:) name: PSAlarmTimerExpiredNotification object: nil];
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| 47 | }
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| 48 | return self;
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| 49 | }
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| 50 |
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| 51 | - (void)dealloc;
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| 52 | {
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| 53 | [alarms dealloc];
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| 54 | [[NSNotificationCenter defaultCenter] removeObserver: self];
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| 55 | [super dealloc];
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| 56 | }
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| 57 |
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| 58 | - (void)_changed;
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| 59 | {
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| 60 | NSData *alarmData;
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| 61 | NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
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| 62 | [alarms sortUsingSelector: @selector(compare:)];
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| 63 | alarmData = [NSArchiver archivedDataWithRootObject: alarms];
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| 64 | [defaults setObject: alarmData forKey: PSPendingAlarms];
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| 65 | [defaults synchronize];
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| 66 | // NSLog(@"PSAlarms changed: %@", alarms);
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| 67 | [[NSNotificationCenter defaultCenter] postNotificationName: PSAlarmsDidChangeNotification object: self];
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| 68 | }
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| 69 |
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| 70 | - (void)_alarmTimerExpired:(NSNotification *)notification;
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| 71 | {
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| 72 | [alarms removeObject: [notification object]];
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| 73 | [self _changed];
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| 74 | }
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| 75 |
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| 76 | - (void)_alarmTimerSet:(NSNotification *)notification;
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| 77 | {
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| 78 | [alarms addObject: [notification object]];
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| 79 | [self _changed];
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| 80 | }
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| 81 |
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| 82 | - (int)alarmCount;
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| 83 | {
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| 84 | return [alarms count];
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| 85 | }
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| 86 |
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| 87 | - (PSAlarm *)alarmAtIndex:(int)index;
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| 88 | {
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| 89 | return [alarms objectAtIndex: index];
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| 90 | }
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| 91 |
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| 92 | - (void)removeAlarmAtIndex:(int)index;
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| 93 | {
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| 94 | [alarms removeObjectAtIndex: index];
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| 95 | }
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| 96 |
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| 97 | - (void)removeAlarmsAtIndices:(NSArray *)indices;
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| 98 | {
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| 99 | NSEnumerator *e = [indices objectEnumerator];
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| 100 | NSNumber *n;
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| 101 | int indexCount = [indices count], i = 0;
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| 102 | int *indexArray = (int *)malloc(indexCount * sizeof(int));
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| 103 | NS_DURING
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| 104 | while ( (n = [e nextObject]) != nil) {
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| 105 | indexArray[i] = [n intValue];
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| 106 | i++;
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| 107 | }
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| 108 | [alarms removeObjectsFromIndices: indexArray numIndices: indexCount];
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| 109 | [self _changed];
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| 110 | NS_HANDLER
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| 111 | free(indexArray);
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| 112 | [self _changed];
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| 113 | [localException raise];
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| 114 | NS_ENDHANDLER
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| 115 | }
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| 116 |
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| 117 | @end
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