Monotone-Revision: f638868d7db65b1617476f06e76394a24bca8310 Monotone-Author: flachapelle@inverse.ca Monotone-Date: 2011-01-14T19:07:43 Monotone-Branch: ca.inverse.sogo
264 lines
6.6 KiB
Objective-C
264 lines
6.6 KiB
Objective-C
/*
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Copyright (C) 2004-2005 SKYRIX Software AG
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Copyright (C) 2010 Inverse inc.
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This file is part of SOPE.
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SOPE is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by the
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Free Software Foundation; either version 2, or (at your option) any
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later version.
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SOPE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with SOPE; see the file COPYING. If not, write to the
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Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA.
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*/
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#import <Foundation/NSArray.h>
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#import <Foundation/NSCalendarDate.h>
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#import <Foundation/NSEnumerator.h>
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#import <Foundation/NSString.h>
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#import <NGExtensions/NGCalendarDateRange.h>
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#import "NSCalendarDate+NGCards.h"
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#import "iCalDateTime.h"
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#import "iCalTimeZone.h"
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#import "iCalRecurrenceRule.h"
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#import "iCalRecurrenceCalculator.h"
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#import "iCalRepeatableEntityObject.h"
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@implementation iCalRepeatableEntityObject
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- (Class) classForTag: (NSString *) classTag
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{
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Class tagClass;
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if ([classTag isEqualToString: @"RRULE"])
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tagClass = [iCalRecurrenceRule class];
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else if ([classTag isEqualToString: @"EXDATE"])
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tagClass = [iCalDateTime class];
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else
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tagClass = [super classForTag: classTag];
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return tagClass;
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}
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/* Accessors */
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- (void) removeAllRecurrenceRules
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{
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[children removeObjectsInArray: [self childrenWithTag: @"rrule"]];
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}
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- (void) addToRecurrenceRules: (id) _rrule
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{
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[self addChild: _rrule];
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}
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- (void) setRecurrenceRules: (NSArray *) _rrules
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{
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[children removeObjectsInArray: [self childrenWithTag: @"rrule"]];
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[self addChildren: _rrules];
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}
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- (BOOL) hasRecurrenceRules
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{
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return ([[self childrenWithTag: @"rrule"] count] > 0);
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}
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- (NSArray *) recurrenceRules
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{
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return [self childrenWithTag: @"rrule"];
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}
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- (void) removeAllExceptionRules
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{
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[children removeObjectsInArray: [self childrenWithTag: @"exrule"]];
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}
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- (void) addToExceptionRules: (id) _rrule
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{
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[self addChild: _rrule];
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}
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- (void) setExceptionRules: (NSArray *) _rrules
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{
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[children removeObjectsInArray: [self childrenWithTag: @"exrule"]];
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[self addChildren: _rrules];
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}
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- (BOOL) hasExceptionRules
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{
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return ([[self childrenWithTag: @"exrule"] count] > 0);
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}
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- (NSArray *) exceptionRules
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{
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return [self childrenWithTag: @"exrule"];
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}
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- (void) removeAllExceptionDates
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{
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[children removeObjectsInArray: [self childrenWithTag: @"exdate"]];
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}
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- (void) addToExceptionDates: (NSCalendarDate *) _rdate
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{
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iCalDateTime *dateTime;
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dateTime = [iCalDateTime new];
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[dateTime setTag: @"exdate"];
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[dateTime setDateTime: _rdate];
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[self addChild: dateTime];
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[dateTime release];
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}
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//- (void) setExceptionDates: (NSArray *) _rdates
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//{
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// [children removeObjectsInArray: [self childrenWithTag: @"exdate"]];
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// [self addChildren: _rdates];
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//}
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- (BOOL) hasExceptionDates
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{
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return ([[self childrenWithTag: @"exdate"] count] > 0);
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}
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/**
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* Return the exception dates of the event in GMT.
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* @return an array of strings.
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*/
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- (NSArray *) exceptionDates
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{
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NSArray *exDates;
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NSMutableArray *dates;
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NSEnumerator *dateList;
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NSCalendarDate *exDate;
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NSString *dateString;
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unsigned i;
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dates = [NSMutableArray array];
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dateList = [[self childrenWithTag: @"exdate"] objectEnumerator];
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while ((dateString = [dateList nextObject]))
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{
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exDates = [(iCalDateTime*) dateString dateTimes];
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for (i = 0; i < [exDates count]; i++)
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{
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exDate = [exDates objectAtIndex: i];
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dateString = [NSString stringWithFormat: @"%@Z",
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[exDate iCalFormattedDateTimeString]];
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[dates addObject: dateString];
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}
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}
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return dates;
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}
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/**
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* Returns the exception dates for the event, but adjusted to the event timezone.
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* Used when calculating a recurrence rule.
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* @param theTimeZone the timezone of the event.
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* @see [iCalTimeZone computedDatesForStrings:]
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* @return the exception dates for the event, adjusted to the event timezone.
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*/
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- (NSArray *) exceptionDatesWithEventTimeZone: (iCalTimeZone *) theTimeZone
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{
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NSArray *exDates;
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NSMutableArray *dates;
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NSEnumerator *dateList;
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NSCalendarDate *exDate;
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NSString *dateString;
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unsigned i;
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if (theTimeZone)
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{
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dates = [NSMutableArray array];
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dateList = [[self childrenWithTag: @"exdate"] objectEnumerator];
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while ((dateString = [dateList nextObject]))
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{
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exDates = [(iCalDateTime*) dateString values];
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for (i = 0; i < [exDates count]; i++)
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{
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dateString = [exDates objectAtIndex: i];
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exDate = [theTimeZone computedDateForString: dateString];
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[dates addObject: exDate];
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}
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}
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}
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else
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dates = [self exceptionDates];
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return dates;
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}
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/* Convenience */
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- (BOOL) isRecurrent
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{
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return [self hasRecurrenceRules];
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}
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/* Matching */
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- (BOOL) isWithinCalendarDateRange: (NGCalendarDateRange *) _range
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firstInstanceCalendarDateRange: (NGCalendarDateRange *) _fir
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{
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NSArray *ranges;
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ranges = [self recurrenceRangesWithinCalendarDateRange:_range
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firstInstanceCalendarDateRange:_fir];
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return [ranges count] > 0;
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}
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- (NSArray *) recurrenceRangesWithinCalendarDateRange: (NGCalendarDateRange *)_r
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firstInstanceCalendarDateRange: (NGCalendarDateRange *)_fir
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{
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return [iCalRecurrenceCalculator recurrenceRangesWithinCalendarDateRange: _r
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firstInstanceCalendarDateRange: _fir
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recurrenceRules: [self recurrenceRules]
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exceptionRules: [self exceptionRules]
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exceptionDates: [self exceptionDates]];
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}
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/* this is the outmost bound possible, not necessarily the real last date */
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- (NSCalendarDate *)
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lastPossibleRecurrenceStartDateUsingFirstInstanceCalendarDateRange: (NGCalendarDateRange *)_r
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{
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NSCalendarDate *date;
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NSEnumerator *rRules;
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iCalRecurrenceRule *rule;
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iCalRecurrenceCalculator *calc;
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NSCalendarDate *rdate;
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date = nil;
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rRules = [[self recurrenceRules] objectEnumerator];
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rule = [rRules nextObject];
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while (rule && ![rule isInfinite] & !date)
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{
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calc = [iCalRecurrenceCalculator
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recurrenceCalculatorForRecurrenceRule: rule
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withFirstInstanceCalendarDateRange: _r];
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rdate = [[calc lastInstanceCalendarDateRange] startDate];
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if (!date
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|| ([date compare: rdate] == NSOrderedAscending))
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date = rdate;
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else
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rule = [rRules nextObject];
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}
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return date;
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}
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@end
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