code.grnet.gr Git - pithos-macos/blob - pithos-macos/LastCompletedSyncTransformer.m

   1 //
   2 //  LastCompletedSyncTransformer.m
   3 //  pithos-macos
   4 //
   5 // Copyright 2011-2012 GRNET S.A. All rights reserved.
   6 //
   7 // Redistribution and use in source and binary forms, with or
   8 // without modification, are permitted provided that the following
   9 // conditions are met:
  10 //
  11 //   1. Redistributions of source code must retain the above
  12 //      copyright notice, this list of conditions and the following
  13 //      disclaimer.
  14 //
  15 //   2. Redistributions in binary form must reproduce the above
  16 //      copyright notice, this list of conditions and the following
  17 //      disclaimer in the documentation and/or other materials
  18 //      provided with the distribution.
  19 //
  20 // THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
  21 // OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  22 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  23 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
  24 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  27 // USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  28 // AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29 // LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  30 // ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  31 // POSSIBILITY OF SUCH DAMAGE.
  32 //
  33 // The views and conclusions contained in the software and
  34 // documentation are those of the authors and should not be
  35 // interpreted as representing official policies, either expressed
  36 // or implied, of GRNET S.A.
  37
  38 #import "LastCompletedSyncTransformer.h"
  39
  40 @implementation LastCompletedSyncTransformer
  41
  42 + (Class)transformedValueClass {
  43         return [NSString class];
  44 }
  45
  46 + (BOOL)allowsReverseTransformation {
  47         return NO;
  48 }
  49
  50 - (id)transformedValue:(id)value {
  51     if (value == nil)
  52                 return @"-";
  53
  54     NSCalendar *calendar = [NSCalendar currentCalendar];
  55     NSDateComponents *comps = [calendar components:(NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit) fromDate:[NSDate date]];
  56     [comps setHour:23];
  57     [comps setMinute:59];
  58     [comps setSecond:59];
  59     NSTimeInterval timeInterval = [[calendar dateFromComponents:comps] timeIntervalSinceDate:(NSDate *)value];
  60     if (timeInterval < 86400) {
  61         // Today
  62         return [NSString stringWithFormat:@"Today %@", [NSDateFormatter localizedStringFromDate:(NSDate *)value
  63                                                                                                      dateStyle:NSDateFormatterNoStyle
  64                                                                                                      timeStyle:NSDateFormatterShortStyle]];
  65     } else if (timeInterval < 172800) {
  66         // Yesterday
  67         return [NSString stringWithFormat:@"Yesterday %@", [NSDateFormatter localizedStringFromDate:(NSDate *)value
  68                                                                                            dateStyle:NSDateFormatterNoStyle
  69                                                                                            timeStyle:NSDateFormatterShortStyle]];
  70     } else {
  71         return [NSString stringWithFormat:@"%@", [NSDateFormatter localizedStringFromDate:(NSDate *)value
  72                                                                                            dateStyle:NSDateFormatterShortStyle
  73                                                                                            timeStyle:NSDateFormatterShortStyle]];
  74     }
  75 }
  76
  77 + (void)initialize {
  78     [[NSValueTransformer class] setValueTransformer:[self new] forName:@"LastCompletedSyncTransformer"];
  79 }
  80
  81 @end