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