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dupeguru-cocoa/cocoalib/NSEventAdditions.m

86 lines
1.9 KiB
Objective-C

/*
Copyright 2015 Hardcoded Software (http://www.hardcoded.net)
This software is licensed under the "GPLv3" License as described in the "LICENSE" file,
which should be included with this package. The terms are also available at
http://www.gnu.org/licenses/gpl-3.0.html
*/
#import "NSEventAdditions.h"
@implementation NSEvent(NSEventAdditions)
- (unichar)firstCharacter
{
NSString *characters = [self characters];
if ([characters length] == 0)
{
return '\0';
}
return [characters characterAtIndex:0];
}
- (NSUInteger)flags
{
// get flags and strip the lower 16 (device dependant) bits
// See modifierFlags's doc for details
return [self modifierFlags] & NSDeviceIndependentModifierFlagsMask;
}
- (NSUInteger)modifierKeysFlags
{
// This is modifierFlags with only Command, Opt, Ctrl and Shift, without the rest of the flags
// to pollute.
return [self flags] & (NSShiftKeyMask | NSControlKeyMask | NSAlternateKeyMask | NSCommandKeyMask);
}
- (BOOL)isDeleteOrBackspace
{
unichar firstChar = [self firstCharacter];
return firstChar == NSDeleteFunctionKey || firstChar == NSDeleteCharFunctionKey ||
firstChar == NSDeleteCharacter || firstChar == NSBackspaceCharacter;
}
- (BOOL)isReturnOrEnter
{
unichar firstChar = [self firstCharacter];
return firstChar == NSCarriageReturnCharacter || firstChar == NSEnterCharacter;
}
- (BOOL)isTab
{
return [self firstCharacter] == NSTabCharacter;
}
- (BOOL)isBackTab
{
return [self firstCharacter] == NSBackTabCharacter;
}
- (BOOL)isSpace
{
return ([self firstCharacter] == 0x20) && (![self flags]);
}
- (BOOL)isUp
{
return [self firstCharacter] == NSUpArrowFunctionKey;
}
- (BOOL)isDown
{
return [self firstCharacter] == NSDownArrowFunctionKey;
}
- (BOOL)isLeft
{
return [self firstCharacter] == NSLeftArrowFunctionKey;
}
- (BOOL)isRight
{
return [self firstCharacter] == NSRightArrowFunctionKey;
}
@end