source: releases/Pester/1.1b5/Source/PSAlarm.m@ 495

Last change on this file since 495 was 358, checked in by Nicholas Riley, 17 years ago

PSAlarm.m: Use 10.4-style (ICU-based) date formatters, which pick up format changes automatically. Still some un-localized bits for intervals and "on"/"at".
File size: 19.2 KB
Line 
1//
2// PSAlarm.m
3// Pester
4//
5// Created by Nicholas Riley on Wed Oct 09 2002.
6// Copyright (c) 2002 Nicholas Riley. All rights reserved.
7//
8
9#import "PSAlarm.h"
10#import "PSAlert.h"
11#import "PSAlerts.h"
12#import "PSTimer.h"
13#import "NSCalendarDate-NJRExtensions.h"
14#import "NSDictionary-NJRExtensions.h"
15#import "NSString-NJRExtensions.h"
16
17NSString * const PSAlarmTimerSetNotification = @"PSAlarmTimerSetNotification";
18NSString * const PSAlarmTimerExpiredNotification = @"PSAlarmTimerExpiredNotification";
19NSString * const PSAlarmDiedNotification = @"PSAlarmDiedNotification";
20
21// property list keys
22static NSString * const PLAlarmType = @"type"; // NSString
23static NSString * const PLAlarmDate = @"date"; // NSNumber
24static NSString * const PLAlarmInterval = @"interval"; // NSNumber
25static NSString * const PLAlarmSnoozeInterval = @"snooze interval"; // NSNumber
26static NSString * const PLAlarmMessage = @"message"; // NSString
27static NSString * const PLAlarmAlerts = @"alerts"; // NSDictionary
28static NSString * const PLAlarmRepeating = @"repeating"; // NSNumber
29
30static NSDateFormatter *dateFormatter, *shortDateFormatter, *timeFormatter;
31
32@implementation PSAlarm
33
34#pragma mark initialize-release
35
36+ (void)initialize;
37{
38 [NSDateFormatter setDefaultFormatterBehavior: NSDateFormatterBehavior10_4];
39 dateFormatter = [[NSDateFormatter alloc] init];
40 [dateFormatter setTimeStyle: NSDateFormatterNoStyle];
41 [dateFormatter setDateStyle: NSDateFormatterFullStyle];
42 shortDateFormatter = [[NSDateFormatter alloc] init];
43 [shortDateFormatter setTimeStyle: NSDateFormatterNoStyle];
44 [shortDateFormatter setDateStyle: NSDateFormatterShortStyle];
45 timeFormatter = [[NSDateFormatter alloc] init];
46 [timeFormatter setTimeStyle: NSDateFormatterMediumStyle];
47 [timeFormatter setDateStyle: NSDateFormatterNoStyle];
48}
49
50- (void)dealloc;
51{
52 // NSLog(@"DEALLOC %@", self);
53 alarmType = PSAlarmInvalid;
54 [alarmDate release]; alarmDate = nil;
55 [alarmMessage release]; alarmMessage = nil;
56 [invalidMessage release]; invalidMessage = nil;
57 [timer invalidate]; [timer release]; timer = nil;
58 [alerts release]; alerts = nil;
59 [super dealloc];
60}
61
62#pragma mark private
63
64- (void)_setAlarmDate:(NSCalendarDate *)aDate;
65{
66 if (alarmDate != aDate) {
67 [alarmDate release];
68 alarmDate = nil;
69 alarmDate = [aDate retain];
70 }
71}
72
73- (void)_beInvalid:(NSString *)aMessage;
74{
75 alarmType = PSAlarmInvalid;
76 if (aMessage != invalidMessage) {
77 [invalidMessage release];
78 invalidMessage = nil;
79 [self _setAlarmDate: nil];
80 alarmInterval = 0;
81 invalidMessage = [aMessage retain];
82 }
83}
84
85- (void)_beValidWithType:(PSAlarmType)type;
86{
87 if (alarmType == PSAlarmSet) return; // already valid
88 [invalidMessage release];
89 invalidMessage = nil;
90 alarmType = type;
91 if (type != PSAlarmInterval) [self setRepeating: NO];
92}
93
94- (void)_setDateFromInterval;
95{
96 [self _setAlarmDate: [NSCalendarDate dateWithTimeIntervalSinceNow: alarmInterval]];
97 [self _beValidWithType: PSAlarmInterval];
98}
99
100- (void)_setIntervalFromDate;
101{
102 alarmInterval = [alarmDate timeIntervalSinceNow];
103 if (alarmInterval <= 0) {
104 [self _beInvalid: @"Please specify an alarm time in the future."];
105 return;
106 }
107 [self _beValidWithType: PSAlarmDate];
108}
109
110- (PSAlarmType)_alarmTypeForString:(NSString *)string;
111{
112 if ([string isEqualToString: @"PSAlarmDate"]) return PSAlarmDate;
113 if ([string isEqualToString: @"PSAlarmInterval"]) return PSAlarmInterval;
114 if ([string isEqualToString: @"PSAlarmSet"]) return PSAlarmSet;
115 if ([string isEqualToString: @"PSAlarmInvalid"]) return PSAlarmInvalid;
116 if ([string isEqualToString: @"PSAlarmSnooze"]) return PSAlarmSnooze;
117 if ([string isEqualToString: @"PSAlarmExpired"]) return PSAlarmExpired;
118 NSLog(@"unknown alarm type string: %@", string);
119 return nil;
120}
121
122- (NSString *)_alarmTypeString;
123{
124 switch (alarmType) {
125 case PSAlarmDate: return @"PSAlarmDate";
126 case PSAlarmInterval: return @"PSAlarmInterval";
127 case PSAlarmSet: return @"PSAlarmSet";
128 case PSAlarmInvalid: return @"PSAlarmInvalid";
129 case PSAlarmSnooze: return @"PSAlarmSnooze";
130 case PSAlarmExpired: return @"PSAlarmExpired";
131 default: return [NSString stringWithFormat: @"<unknown: %u>", alarmType];
132 }
133}
134
135- (NSString *)_stringForInterval:(unsigned long long)interval;
136{
137 const unsigned long long minute = 60, hour = minute * 60, day = hour * 24, year = day * 365.26;
138 // +[NSString stringWithFormat:] in 10.1 does not support long longs: work around it by converting to unsigned ints or longs for display
139 if (interval == 0) return nil;
140 if (interval < minute) return [NSString stringWithFormat: @"%us", (unsigned)interval];
141 if (interval < hour) return [NSString stringWithFormat: @"%um", (unsigned)(interval / minute)];
142 if (interval < day) return [NSString stringWithFormat: @"%uh %um", (unsigned)(interval / hour), (unsigned)((interval % hour) / minute)];
143 if (interval < 2 * day) return @"One day";
144 if (interval < year) return [NSString stringWithFormat: @"%u days", (unsigned)(interval / day)];
145 if (interval < 2 * year) return @"One year";
146 return [NSString stringWithFormat: @"%lu years", (unsigned long)(interval / year)];
147}
148
149- (void)_timerExpired:(PSTimer *)aTimer;
150{
151 NSLog(@"expired: %@; now %@", [[aTimer fireDate] description], [[NSDate date] description]);
152 alarmType = PSAlarmExpired;
153 [[NSNotificationCenter defaultCenter] postNotificationName: PSAlarmTimerExpiredNotification object: self];
154 [timer release]; timer = nil;
155}
156
157#pragma mark alarm setting
158
159- (void)setInterval:(NSTimeInterval)anInterval;
160{
161 alarmInterval = anInterval;
162 if (alarmInterval <= 0) {
163 [self _beInvalid: @"Please specify an alarm interval."]; return;
164 }
165 [self _setDateFromInterval];
166}
167
168- (void)setForDateAtTime:(NSCalendarDate *)dateTime;
169{
170 [self _setAlarmDate: dateTime];
171 [self _setIntervalFromDate];
172}
173
174- (void)setForDate:(NSDate *)date atTime:(NSDate *)time;
175{
176 NSCalendarDate *dateTime;
177 if (time == nil && date == nil) {
178 [self _beInvalid: @"Please specify an alarm date and time."]; return;
179 }
180 if (time == nil) {
181 [self _beInvalid: @"Please specify an alarm time."]; return;
182 }
183 if (date == nil) {
184 [self _beInvalid: @"Please specify an alarm date."]; return;
185 }
186 // XXX if calTime's date is different from the default date, complain
187 dateTime = [NSCalendarDate dateWithDate: date atTime: time];
188 if (dateTime == nil) {
189 [self _beInvalid: @"Please specify a reasonable date and time."]; return;
190 }
191 [self setForDateAtTime: dateTime];
192}
193
194- (void)setRepeating:(BOOL)isRepeating;
195{
196 repeating = isRepeating;
197}
198
199- (void)setSnoozeInterval:(NSTimeInterval)anInterval;
200{
201 snoozeInterval = anInterval;
202 NSAssert(alarmType == PSAlarmExpired, NSLocalizedString(@"Can't snooze an alarm that hasn't expired", "Assertion for PSAlarm snooze setting"));
203 alarmType = PSAlarmSnooze;
204}
205
206- (void)setWakeUp:(BOOL)doWake;
207{
208 [timer setWakeUp: doWake];
209}
210
211#pragma mark accessing
212
213- (NSString *)message;
214{
215 if (alarmMessage == nil || [alarmMessage isEqualToString: @""])
216 return @"Alarm!";
217 return alarmMessage;
218}
219
220- (void)setMessage:(NSString *)aMessage;
221{
222 if (aMessage != alarmMessage) {
223 [alarmMessage release];
224 alarmMessage = nil;
225 alarmMessage = [aMessage retain];
226 }
227}
228
229- (BOOL)isValid;
230{
231 if (alarmType == PSAlarmDate) [self _setIntervalFromDate];
232 if (alarmType == PSAlarmInvalid ||
233 (alarmType == PSAlarmExpired && ![self isRepeating])) return NO;
234 return YES;
235}
236
237- (NSString *)invalidMessage;
238{
239 if (invalidMessage == nil) return @"";
240 return invalidMessage;
241}
242
243- (NSCalendarDate *)date;
244{
245 if (alarmType == PSAlarmInterval) [self _setDateFromInterval];
246 return alarmDate;
247}
248
249- (NSCalendarDate *)time;
250{
251 if (alarmType == PSAlarmInterval) [self _setDateFromInterval];
252 return [[NSCalendarDate alloc] initWithYear: 0
253 month: 1
254 day: 1
255 hour: [alarmDate hourOfDay]
256 minute: [alarmDate minuteOfHour]
257 second: [alarmDate secondOfMinute]
258 timeZone: nil];
259}
260
261- (NSTimeInterval)interval;
262{
263 if (alarmType == PSAlarmDate) [self _setIntervalFromDate];
264 return alarmInterval;
265}
266
267- (NSTimeInterval)snoozeInterval;
268{
269 return snoozeInterval;
270}
271
272- (NSTimeInterval)timeRemaining;
273{
274 NSAssert1(alarmType == PSAlarmSet, NSLocalizedString(@"Can't get time remaining on alarm with no timer set: %@", "Assertion for PSAlarm time remaining, internal error; %@ replaced by alarm description"), self);
275 return -[[NSDate date] timeIntervalSinceDate: alarmDate];
276}
277
278- (void)setAlerts:(PSAlerts *)theAlerts;
279{
280 [alerts release]; alerts = nil;
281 alerts = [theAlerts retain];
282}
283
284- (PSAlerts *)alerts;
285{
286 if (alerts == nil) alerts = [[PSAlerts alloc] init];
287 return alerts;
288}
289
290- (BOOL)isRepeating;
291{
292 return repeating;
293}
294
295- (NSString *)dateString;
296{
297 return [dateFormatter stringFromDate: [self date]];
298}
299
300- (NSString *)shortDateString;
301{
302 return [shortDateFormatter stringFromDate: [self date]];
303}
304
305- (NSString *)timeString;
306{
307 return [timeFormatter stringFromDate: [self date]];
308}
309
310- (NSString *)dateTimeString;
311{
312 return [NSString stringWithFormat: @"%@ at %@", [self dateString], [self timeString]];
313}
314
315- (NSString *)nextDateTimeString;
316{
317 if (![self isRepeating]) {
318 return nil;
319 } else {
320 NSCalendarDate *date = [[NSCalendarDate alloc] initWithTimeIntervalSinceNow: [self interval]];
321 NSString *nextDateTimeString = [NSString stringWithFormat: @"%@ at %@",
322 [dateFormatter stringFromDate: date],
323 [timeFormatter stringFromDate: date]];
324 [date release];
325 return nextDateTimeString;
326 }
327}
328
329- (NSString *)intervalString;
330{
331 const unsigned long long mval = 99, minute = 60, hour = minute * 60;
332 unsigned long long interval = [self interval];
333 if (interval == 0) return nil;
334 if (interval == 1) return @"One second";
335 if (interval == minute) return @"One minute";
336 if (interval % minute == 0) return [NSString stringWithFormat: @"%u minutes", (unsigned)(interval / minute)];
337 if (interval <= mval) return [NSString stringWithFormat: @"%u seconds", (unsigned)interval];
338 if (interval == hour) return @"One hour";
339 if (interval % hour == 0) return [NSString stringWithFormat: @"%u hours", (unsigned)(interval / hour)];
340 if (interval <= mval * minute) return [NSString stringWithFormat: @"%u minutes", (unsigned)(interval / minute)];
341 if (interval <= mval * hour) return [NSString stringWithFormat: @"%u hours", (unsigned)(interval / hour)];
342 return [self _stringForInterval: interval];
343}
344
345- (NSString *)timeRemainingString;
346{
347 NSString *timeRemainingString = [self _stringForInterval: llround([self timeRemaining])];
348
349 if (timeRemainingString == nil) return @"«expired»";
350 return timeRemainingString;
351}
352
353- (NSAttributedString *)prettyDescription;
354{
355 NSMutableAttributedString *string = [[NSMutableAttributedString alloc] init];
356 NSAttributedString *alertList = [alerts prettyList];
357
358 [string appendAttributedString:
359 [[NSString stringWithFormat: NSLocalizedString(@"At alarm time for %@:\n", "Alert list title in pretty description, %@ replaced with message"), [self message]] small]];
360 if (alertList != nil) {
361 [string appendAttributedString: alertList];
362 } else {
363 [string appendAttributedString: [@"Do nothing." small]];
364 }
365 if ([self isRepeating]) {
366 [string appendAttributedString:
367 [[NSString stringWithFormat: @"\nAlarm repeats every %@.", [[self intervalString] lowercaseString]] small]];
368 }
369 return [string autorelease];
370}
371
372#pragma mark actions
373
374- (BOOL)setTimer;
375{
376 if (alarmType == PSAlarmExpired) {
377 if ([self isRepeating]) {
378 [self _setDateFromInterval];
379 } else {
380 [[NSNotificationCenter defaultCenter] postNotificationName: PSAlarmDiedNotification object: self];
381 return NO;
382 }
383 } else if (alarmType == PSAlarmDate) {
384 if (![self isValid]) return NO;
385 } else if (alarmType == PSAlarmSnooze) {
386 [self _setAlarmDate: [NSCalendarDate dateWithTimeIntervalSinceNow: snoozeInterval]];
387 } else if (alarmType != PSAlarmInterval) {
388 return NO;
389 }
390 timer = [PSTimer scheduledTimerWithTimeInterval: (alarmType == PSAlarmSnooze ? snoozeInterval : alarmInterval) target: self selector: @selector(_timerExpired:) userInfo: nil repeats: NO];
391 if (timer == nil) return NO;
392 [timer retain];
393 alarmType = PSAlarmSet;
394 [alerts prepareForAlarm: self];
395
396 [[NSNotificationCenter defaultCenter] postNotificationName: PSAlarmTimerSetNotification object: self];
397 // NSLog(@"set: %@; now %@; remaining %@", [[timer fireDate] description], [[NSDate date] description], [self timeRemainingString]);
398 return YES;
399}
400
401- (void)cancelTimer;
402{
403 [timer invalidate]; [timer release]; timer = nil;
404}
405
406- (void)resetTimer;
407{
408 if (timer != nil || alarmType != PSAlarmSet)
409 return;
410
411 alarmType = PSAlarmDate;
412 if (![self isRepeating]) {
413 [self setTimer];
414 } else {
415 // don't want to put this logic in setTimer or isValid because it can cause invalid alarms to be set (consider when someone clicks the "repeat" checkbox, then switches to a [nonrepeating, by design] date alarm, and enters a date that has passed: we do -not- want the alarm to magically morph into a repeating interval alarm)
416 NSTimeInterval savedInterval = alarmInterval;
417 if (![self setTimer]) {
418 alarmType = PSAlarmInterval;
419 [self setInterval: savedInterval];
420 [self setTimer];
421 }
422 }
423}
424
425#pragma mark comparing
426
427- (NSComparisonResult)compareDate:(PSAlarm *)otherAlarm;
428{
429 return [[self date] compare: [otherAlarm date]];
430}
431
432- (NSComparisonResult)compareMessage:(PSAlarm *)otherAlarm;
433{
434 return [[self message] caseInsensitiveCompare: [otherAlarm message]];
435}
436
437#pragma mark printing
438
439- (NSString *)description;
440{
441 return [NSString stringWithFormat: @"%@: type %@ date %@ interval %.1f%@%@",
442 [super description], [self _alarmTypeString], alarmDate, alarmInterval,
443 (repeating ? @" repeating" : @""),
444 (alarmType == PSAlarmInvalid ?
445 [NSString stringWithFormat: @"\ninvalid message: %@", invalidMessage]
446 : (alarmType == PSAlarmSet ?
447 [NSString stringWithFormat: @"\ntimer: %@", timer] : @""))];
448}
449
450#pragma mark property list serialization (Pester 1.1)
451
452- (NSDictionary *)propertyListRepresentation;
453{
454 NSMutableDictionary *dict = [NSMutableDictionary dictionaryWithCapacity: 5];
455 if (![self isValid]) return nil;
456 [dict setObject: [self _alarmTypeString] forKey: PLAlarmType];
457 switch (alarmType) {
458 case PSAlarmDate:
459 case PSAlarmSet:
460 [dict setObject: [NSNumber numberWithDouble: [alarmDate timeIntervalSinceReferenceDate]] forKey: PLAlarmDate];
461 case PSAlarmSnooze:
462 case PSAlarmInterval:
463 case PSAlarmExpired:
464 break;
465 default:
466 NSAssert1(NO, NSLocalizedString(@"Can't save alarm type %@", "Assertion for invalid PSAlarm type on string; %@ replaced with alarm type string"), [self _alarmTypeString]);
467 break;
468 }
469 if ((alarmType != PSAlarmSet || repeating) && alarmType != PSAlarmDate) {
470 [dict setObject: [NSNumber numberWithBool: repeating] forKey: PLAlarmRepeating];
471 [dict setObject: [NSNumber numberWithDouble: alarmInterval] forKey: PLAlarmInterval];
472 }
473 if (snoozeInterval != 0)
474 [dict setObject: [NSNumber numberWithDouble: snoozeInterval] forKey: PLAlarmSnoozeInterval];
475 [dict setObject: alarmMessage forKey: PLAlarmMessage];
476 if (alerts != nil) {
477 [dict setObject: [alerts propertyListRepresentation] forKey: PLAlarmAlerts];
478 }
479 return dict;
480}
481
482- (id)initWithPropertyList:(NSDictionary *)dict;
483{
484 if ( (self = [self init]) != nil) {
485 PSAlerts *alarmAlerts;
486 alarmType = [self _alarmTypeForString: [dict objectForRequiredKey: PLAlarmType]];
487 switch (alarmType) {
488 case PSAlarmDate:
489 case PSAlarmSet:
490 { NSCalendarDate *date = [[NSCalendarDate alloc] initWithTimeIntervalSinceReferenceDate: [[dict objectForRequiredKey: PLAlarmDate] doubleValue]];
491 [self _setAlarmDate: date];
492 [date release];
493 }
494 break;
495 case PSAlarmSnooze: // snooze interval set but not confirmed; ignore
496 alarmType = PSAlarmExpired;
497 case PSAlarmInterval:
498 case PSAlarmExpired:
499 break;
500 default:
501 NSAssert1(NO, NSLocalizedString(@"Can't load alarm type %@", "Assertion for invalid PSAlarm type on load; %@ replaced with alarm type string"), [self _alarmTypeString]);
502 break;
503 }
504 repeating = [[dict objectForKey: PLAlarmRepeating] boolValue];
505 if ((alarmType != PSAlarmSet || repeating) && alarmType != PSAlarmDate)
506 alarmInterval = [[dict objectForRequiredKey: PLAlarmInterval] doubleValue];
507 snoozeInterval = [[dict objectForKey: PLAlarmSnoozeInterval] doubleValue];
508 [self setMessage: [dict objectForRequiredKey: PLAlarmMessage]];
509 alarmAlerts = [[PSAlerts alloc] initWithPropertyList: [dict objectForRequiredKey: PLAlarmAlerts]];
510 [self setAlerts: alarmAlerts];
511 [alarmAlerts release];
512 [self resetTimer];
513 if (alarmType == PSAlarmExpired) {
514 [self setTimer];
515 if (alarmType == PSAlarmExpired) { // failed to restart
516 [self release];
517 self = nil;
518 }
519 }
520 }
521 return self;
522}
523
524#pragma mark archiving (Pester 1.0)
525
526- (void)encodeWithCoder:(NSCoder *)coder;
527{
528 if (![self isValid]) return;
529 [coder encodeValueOfObjCType: @encode(PSAlarmType) at: &alarmType];
530 switch (alarmType) {
531 case PSAlarmDate:
532 case PSAlarmSet:
533 [coder encodeObject: alarmDate];
534 break;
535 case PSAlarmInterval:
536 [coder encodeValueOfObjCType: @encode(NSTimeInterval) at: &alarmInterval];
537 break;
538 default:
539 break;
540 }
541 [coder encodeObject: alarmMessage];
542 // NSLog(@"encoded: %@", self); // XXX happening twice, gdb refuses to show proper backtrace, grr
543 return;
544}
545
546- (id)initWithCoder:(NSCoder *)coder;
547{
548 if ( (self = [self init]) != nil) {
549 PSAlerts *legacyAlerts = [[PSAlerts alloc] initWithPesterVersion1Alerts];
550 [self setAlerts: legacyAlerts];
551 [legacyAlerts release];
552 [coder decodeValueOfObjCType: @encode(PSAlarmType) at: &alarmType];
553 switch (alarmType) {
554 case PSAlarmDate:
555 case PSAlarmSet:
556 [self _setAlarmDate: [coder decodeObject]];
557 break;
558 case PSAlarmInterval:
559 [coder decodeValueOfObjCType: @encode(NSTimeInterval) at: &alarmInterval];
560 break;
561 default:
562 break;
563 }
564 [self setMessage: [coder decodeObject]];
565 if (alarmType == PSAlarmSet) {
566 alarmType = PSAlarmDate;
567 [self setTimer];
568 }
569 }
570 return self;
571}
572
573@end
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