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109 lines
2.4 KiB
109 lines
2.4 KiB
8 years ago
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// SRModifierFlagsTransformer.m
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// ShortcutRecorder
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//
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// Copyright 2006-2012 Contributors. All rights reserved.
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//
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// License: BSD
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//
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// Contributors:
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// Ilya Kulakov
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#import "SRModifierFlagsTransformer.h"
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#import "SRCommon.h"
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@implementation SRModifierFlagsTransformer
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- (instancetype)initWithPlainStrings:(BOOL)aUsesPlainStrings
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{
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self = [super init];
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if (self)
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{
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_usesPlainStrings = aUsesPlainStrings;
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}
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return self;
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}
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- (instancetype)init
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{
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return [self initWithPlainStrings:NO];
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}
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#pragma mark Methods
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+ (instancetype)sharedTransformer
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{
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static dispatch_once_t OnceToken;
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static SRModifierFlagsTransformer *Transformer = nil;
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dispatch_once(&OnceToken, ^{
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Transformer = [[self alloc] initWithPlainStrings:NO];
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});
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return Transformer;
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}
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+ (instancetype)sharedPlainTransformer
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{
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static dispatch_once_t OnceToken;
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static SRModifierFlagsTransformer *Transformer = nil;
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dispatch_once(&OnceToken, ^{
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Transformer = [[self alloc] initWithPlainStrings:YES];
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});
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return Transformer;
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}
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#pragma mark NSValueTransformer
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+ (Class)transformedValueClass
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{
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return [NSString class];
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}
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+ (BOOL)allowsReverseTransformation
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{
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return NO;
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}
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- (NSString *)transformedValue:(NSNumber *)aValue
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{
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if (![aValue isKindOfClass:[NSNumber class]])
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return nil;
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else if (self.usesPlainStrings)
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{
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NSEventModifierFlags modifierFlags = [aValue unsignedIntegerValue];
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NSMutableString *s = [NSMutableString string];
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if (modifierFlags & NSControlKeyMask)
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[s appendString:SRLoc(@"Control-")];
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if (modifierFlags & NSAlternateKeyMask)
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[s appendString:SRLoc(@"Option-")];
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if (modifierFlags & NSShiftKeyMask)
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[s appendString:SRLoc(@"Shift-")];
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if (modifierFlags & NSCommandKeyMask)
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[s appendString:SRLoc(@"Command-")];
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if (s.length > 0)
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[s deleteCharactersInRange:NSMakeRange(s.length - 1, 1)];
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return s;
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}
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else
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{
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NSEventModifierFlags f = [aValue unsignedIntegerValue];
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return [NSString stringWithFormat:@"%@%@%@%@",
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(f & NSControlKeyMask ? @"⌃" : @""),
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(f & NSAlternateKeyMask ? @"⌥" : @""),
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(f & NSShiftKeyMask ? @"⇧" : @""),
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(f & NSCommandKeyMask ? @"⌘" : @"")];
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}
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}
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@end
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