mirror of
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133 lines
3.4 KiB
Objective-C
133 lines
3.4 KiB
Objective-C
//
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// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
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//
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#import "OWSDisappearingMessagesConfiguration.h"
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#import "NSString+SSK.h"
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#import <SignalCoreKit/NSDate+OWS.h>
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NS_ASSUME_NONNULL_BEGIN
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@interface OWSDisappearingMessagesConfiguration ()
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// Transient record lifecycle attributes.
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@property (atomic) NSDictionary *originalDictionaryValue;
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@property (atomic, getter=isNewRecord) BOOL newRecord;
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@end
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@implementation OWSDisappearingMessagesConfiguration
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- (instancetype)initDefaultWithThreadId:(NSString *)threadId
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{
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return [self initWithThreadId:threadId
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enabled:NO
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durationSeconds:OWSDisappearingMessagesConfigurationDefaultExpirationDuration];
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}
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- (nullable instancetype)initWithCoder:(NSCoder *)coder
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{
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self = [super initWithCoder:coder];
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_originalDictionaryValue = [self dictionaryValue];
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_newRecord = NO;
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return self;
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}
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- (instancetype)initWithThreadId:(NSString *)threadId enabled:(BOOL)isEnabled durationSeconds:(uint32_t)seconds
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{
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self = [super initWithUniqueId:threadId];
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if (!self) {
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return self;
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}
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_enabled = isEnabled;
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_durationSeconds = seconds;
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_newRecord = YES;
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_originalDictionaryValue = self.dictionaryValue;
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return self;
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}
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+ (instancetype)fetchOrBuildDefaultWithThreadId:(NSString *)threadId
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transaction:(YapDatabaseReadTransaction *)transaction
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{
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OWSDisappearingMessagesConfiguration *savedConfiguration =
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[self fetchObjectWithUniqueID:threadId transaction:transaction];
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if (savedConfiguration) {
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return savedConfiguration;
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} else {
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return [[self alloc] initDefaultWithThreadId:threadId];
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}
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}
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+ (NSArray<NSNumber *> *)validDurationsSeconds
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{
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return @[
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@(5 * kSecondInterval),
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@(10 * kSecondInterval),
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@(30 * kSecondInterval),
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@(1 * kMinuteInterval),
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@(5 * kMinuteInterval),
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@(30 * kMinuteInterval),
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@(1 * kHourInterval),
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@(6 * kHourInterval),
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@(12 * kHourInterval),
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@(24 * kHourInterval),
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@(1 * kWeekInterval)
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];
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}
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+ (uint32_t)maxDurationSeconds
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{
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static uint32_t max;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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max = [[self.validDurationsSeconds valueForKeyPath:@"@max.intValue"] unsignedIntValue];
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// It's safe to update this assert if we add a larger duration
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OWSAssertDebug(max == 1 * kWeekInterval);
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});
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return max;
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}
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- (NSUInteger)durationIndex
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{
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return [[self.class validDurationsSeconds] indexOfObject:@(self.durationSeconds)];
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}
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- (NSString *)durationString
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{
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return [NSString formatDurationSeconds:self.durationSeconds useShortFormat:NO];
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}
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#pragma mark - Dirty Tracking
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+ (MTLPropertyStorage)storageBehaviorForPropertyWithKey:(NSString *)propertyKey
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{
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// Don't persist transient properties
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if ([propertyKey isEqualToString:@"originalDictionaryValue"]
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||[propertyKey isEqualToString:@"newRecord"]) {
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return MTLPropertyStorageNone;
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} else {
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return [super storageBehaviorForPropertyWithKey:propertyKey];
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}
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}
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- (BOOL)dictionaryValueDidChange
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{
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return ![self.originalDictionaryValue isEqual:[self dictionaryValue]];
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}
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- (void)saveWithTransaction:(YapDatabaseReadWriteTransaction *)transaction
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{
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[super saveWithTransaction:transaction];
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self.originalDictionaryValue = [self dictionaryValue];
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self.newRecord = NO;
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}
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@end
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NS_ASSUME_NONNULL_END
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