sogo/SoObjects/Appointments/iCalRepeatableEntityObject+...

160 lines
4.7 KiB
Objective-C

/* iCalRepeatableEntityObject+SOGo.m - this file is part of SOGo
*
* Copyright (C) 2007-2014 Inverse inc.
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This file is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#import <Foundation/NSArray.h>
#import <Foundation/NSCalendarDate.h>
#import <Foundation/NSDictionary.h>
#import <Foundation/NSString.h>
#import <Foundation/NSTimeZone.h>
#import <NGCards/iCalDateTime.h>
#import <NGCards/iCalEvent.h>
#import <NGCards/iCalRecurrenceRule.h>
#import <NGCards/iCalRecurrenceCalculator.h>
#import <NGCards/iCalTimeZone.h>
#import <NGCards/NSString+NGCards.h>
#import <NGCards/NSDictionary+NGCards.h>
#import <NGExtensions/NGCalendarDateRange.h>
#import "iCalRepeatableEntityObject+SOGo.h"
@implementation iCalRepeatableEntityObject (SOGoExtensions)
- (NSArray *) _indexedRules: (NSArray *) rules
{
NSMutableArray *ma;
NSUInteger i, count;
NSMutableString *ruleString;
iCalRecurrenceRule *rule;
#warning we could return an NSArray instead and feed it as such to the iCalRecurrenceRule in SOGoAppointmentFolder...
ma = nil;
count = [rules count];
if (count > 0)
{
ma = [NSMutableArray arrayWithCapacity: count];
for (i = 0; i < count; i++)
{
rule = [rules objectAtIndex:i];
ruleString = [NSMutableString new];
[[rule values] versitRenderInString: ruleString
withKeyOrdering: [rule orderOfValueKeys]
asAttributes: NO];
[ma addObject: ruleString];
[ruleString release];
}
}
return ma;
}
- (NSString *) cycleInfo
{
NSArray *rules;
NSString *value;
NSMutableDictionary *cycleInfo;
if ([self isRecurrent])
{
cycleInfo = [NSMutableDictionary dictionaryWithCapacity: 3];
/* rules */
rules = [self _indexedRules: [self recurrenceRules]];
if (rules)
[cycleInfo setObject: rules forKey: @"rules"];
rules = [self _indexedRules: [self exceptionRules]];
if (rules)
[cycleInfo setObject: rules forKey: @"exRules"];
rules = [self exceptionDates];
if ([rules count])
[cycleInfo setObject: rules forKey: @"exDates"];
value = [cycleInfo description];
}
else
value = nil;
return value;
}
- (NGCalendarDateRange *) firstOccurenceRange
{
[self subclassResponsibility: _cmd];
return nil;
}
- (unsigned int) occurenceInterval
{
[self subclassResponsibility: _cmd];
return 0;
}
/**
* Checks if a date is part of the recurring entity.
* @param theOccurrenceDate the date to verify.
* @see [SOGoAppointmentFolder _flattenCycleRecord:forRange:intoArray:]
* @return true if the occurence date is part of the recurring entity.
*/
- (BOOL) doesOccurOnDate: (NSCalendarDate *) theOccurenceDate
{
NSArray *ranges;
NGCalendarDateRange *checkRange, *firstRange;
NSCalendarDate *startDate, *endDate;
id firstStartDate, firstEndDate, timeZone;
BOOL doesOccur;
int offset;
doesOccur = [self isRecurrent];
if (doesOccur)
{
// Retrieve the range of the first event
firstRange = [self firstOccurenceRange]; // returns GMT dates
// Set the range to check with respect to the event timezone (extracted from the start date)
firstStartDate = (iCalDateTime *)[self uniqueChildWithTag: @"dtstart"];
timeZone = [(iCalDateTime *)firstStartDate timeZone];
if (timeZone)
startDate = [(iCalTimeZone *)timeZone computedDateForDate: theOccurenceDate];
else
startDate = theOccurenceDate;
endDate = [startDate addTimeInterval: [self occurenceInterval]];
checkRange = [NGCalendarDateRange calendarDateRangeWithStartDate: startDate
endDate: endDate];
// Calculate the occurrences for the given date
ranges = [iCalRecurrenceCalculator recurrenceRangesWithinCalendarDateRange: checkRange
firstInstanceCalendarDateRange: firstRange
recurrenceRules: [self recurrenceRulesWithTimeZone: timeZone]
exceptionRules: [self exceptionRulesWithTimeZone: timeZone]
exceptionDates: [self exceptionDatesWithTimeZone: timeZone]];
doesOccur = [ranges dateRangeArrayContainsDate: startDate];
}
return doesOccur;
}
@end