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88 lines
2.5 KiB
Objective-C
88 lines
2.5 KiB
Objective-C
/*
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Copyright 2015 OpenMarket Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#import "EventFormatter.h"
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@interface EventFormatter ()
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{
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/**
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The calendar used to retrieve the today date.
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*/
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NSCalendar *calendar;
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}
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@end
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@implementation EventFormatter
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- (instancetype)initWithMatrixSession:(MXSession *)matrixSession
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{
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self = [super initWithMatrixSession:matrixSession];
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if (self)
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{
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calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
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// Note: NSDate object always shows time according to GMT, so the calendar should be in GMT too.
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calendar.timeZone = [NSTimeZone timeZoneWithAbbreviation:@"GMT"];
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}
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return self;
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}
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#pragma mark - Timestamp formatting
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- (NSString*)dateStringFromDate:(NSDate *)date withTime:(BOOL)time
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{
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// Retrieve today date at midnight
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NSDateComponents *components = [calendar components:(NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay) fromDate:[NSDate date]];
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NSDate *today = [calendar dateFromComponents:components];
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NSTimeInterval interval = -[date timeIntervalSinceDate:today];
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if (interval > 60*60*24*6)
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{
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dateFormat = @"EEE MMM dd yyyy";
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return [super dateStringFromDate:date withTime:time];
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}
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else if (interval > 60*60*24)
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{
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dateFormat = @"EEEE";
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return [super dateStringFromDate:date withTime:time];
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}
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else if (interval > 0)
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{
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if (time)
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{
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dateFormat = nil;
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return [NSString stringWithFormat:@"yesterday %@", [super dateStringFromDate:date withTime:YES]];
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}
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return @"yesterday";
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}
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else if (interval > - 60*60*24)
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{
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if (time)
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{
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dateFormat = nil;
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return [NSString stringWithFormat:@"today %@", [super dateStringFromDate:date withTime:YES]];
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}
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return @"today";
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}
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else
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{
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// Date in future
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dateFormat = @"EEE MMM dd yyyy";
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return [super dateStringFromDate:date withTime:time];
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}
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}
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@end
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