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HotkeyTextView.m
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HotkeyTextView.m
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//
// HotkeyTextView.m
//
#import "HotkeyTextView.h"
#import "Hotkey.h"
#import <Carbon/Carbon.h>
@implementation HotkeyTextView
@synthesize target = _target;
- (id)initWithFrame:(NSRect)frameRect
{
self = [super initWithFrame:frameRect];
if (self) {
_is_editing = NO;
[self setSelectable:NO];
[self setFocusRingType:NSFocusRingTypeExterior];
}
return self;
}
- (void)redraw
{
[self setString:[_hotkey string]];
}
- (void) dealloc
{
[_hotkey release];
[super dealloc];
}
- (void)startEdit
{
[[self window] makeFirstResponder:self];
[self setSelectable:YES];
_is_editing = YES;
NSRange range = NSMakeRange(0, [[self string] length]);
[self setSelectedRange:range];
}
- (void)endEdit
{
[self setSelectable:NO];
_is_editing = NO;
[self redraw];
}
- (void)mouseDown:(id)theEvent
{
if ([theEvent clickCount] >= 2) {
[self startEdit];
}
}
- (void)keyDown:(NSEvent *)theEvent
{
if (!_is_editing) {
return;
}
UInt32 modifier = 0;
UInt32 keycode = [theEvent keyCode];
UInt32 old_modifier = _hotkey.modifier;
UInt32 old_code = _hotkey.code;
NSUInteger modifier_flags = [theEvent modifierFlags];
if (modifier_flags & NSShiftKeyMask) {
modifier |= shiftKey;
}
if (modifier_flags & NSCommandKeyMask) {
modifier |= cmdKey;
}
if (modifier_flags & NSAlternateKeyMask) {
modifier |= optionKey;
}
if (modifier_flags & NSControlKeyMask) {
modifier |= controlKey;
}
if (!([Hotkey isHotKeyForModifier:modifier])) {
if (keycode == kVK_Escape) {
[self redraw];
}
// abort
return;
}
if (![Hotkey isHotKeyForKeyCode:keycode]) {
// abort
return;
}
if (self.target && [self.target respondsToSelector:@selector(hotkeyShouldChange:)]) {
_hotkey.modifier = modifier;
_hotkey.code = keycode;
SEL selector = @selector(hotkeyShouldChange:);
NSMethodSignature* signature =
[[self.target class] instanceMethodSignatureForSelector:selector];
NSInvocation *invocation =
[NSInvocation invocationWithMethodSignature:signature];
BOOL result;
[invocation setSelector:selector];
[invocation setTarget:self.target];
[invocation setArgument:&_hotkey atIndex:2];
[invocation invoke];
[invocation getReturnValue:&result];
if (result) {
[self redraw];
} else {
_hotkey.modifier = old_modifier;
_hotkey.code = old_code;
}
} else {
NSLog(@"WARNING: HotkeyTextView.target is null, HotkeyTextView.target instance does not implement changedHotkey:(Htokey*), you should write the method on HotkeyTextView.target");
NSLog(@"Hotkey: %@", self.hotkey);
NSLog(@"HotkeyTextView.target: %@", self.target);
}
}
- (Hotkey*)hotkey
{
return _hotkey;
}
- (void)setHotkey:(Hotkey*)hotkey
{
[hotkey retain];
[_hotkey release];
_hotkey = hotkey;
[self redraw];
}
- (BOOL)resignFirstResponder
{
[self endEdit];
return YES;
}
@end