52 lines
1.4 KiB
Objective-C
52 lines
1.4 KiB
Objective-C
//
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// ColorToValueTransformer.m
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// Preferences
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//
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// Created by Christopher Snowhill on 5/22/22.
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//
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#import "ColorToValueTransformer.h"
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@implementation ColorToValueTransformer
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+ (Class)transformedValueClass {
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return [NSColor class];
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}
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+ (BOOL)allowsReverseTransformation {
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return YES;
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}
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// Convert from string to NSURL
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- (id)reverseTransformedValue:(id)value {
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if(value == nil) return nil;
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NSError *error;
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NSData *data = [NSKeyedArchiver archivedDataWithRootObject:value
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requiringSecureCoding:YES
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error:&error];
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return data;
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}
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- (id)transformedValue:(id)value {
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if(value == nil) return [NSColor colorWithRed:0 green:0 blue:0 alpha:1.0];
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NSError *error;
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NSColor *color = nil;
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if(@available(macOS 11.0, *)) {
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color = (NSColor *)[NSKeyedUnarchiver unarchivedArrayOfObjectsOfClass:[NSColor class]
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fromData:value
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error:&error];
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} else {
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NSSet *allowed = [NSSet setWithArray:@[[NSColor class]]];
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color = (NSColor *)[NSKeyedUnarchiver unarchivedObjectOfClasses:allowed
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fromData:value
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error:&error];
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}
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return color;
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}
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@end
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