1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/UniqueWindowController.m	Thu Mar 20 09:05:58 2008 -0700
     1.3 @@ -0,0 +1,47 @@
     1.4 +//
     1.5 +//  UniqueWindowController.m
     1.6 +//  Cloudy
     1.7 +//
     1.8 +//  Created by Jens Alfke on 3/14/08.
     1.9 +//  Copyright 2008 __MyCompanyName__. All rights reserved.
    1.10 +//
    1.11 +
    1.12 +#import "UniqueWindowController.h"
    1.13 +
    1.14 +
    1.15 +@implementation UniqueWindowController
    1.16 +
    1.17 +
    1.18 ++ (UniqueWindowController*) instanceWith: (id)model
    1.19 +{
    1.20 +    for( NSWindow *window in [NSApp windows] ) {
    1.21 +        id delegate = window.delegate;
    1.22 +        if( window.isVisible && [delegate isKindOfClass: [self class]] ) {
    1.23 +            UniqueWindowController *c = delegate;
    1.24 +            if( c.model == model )
    1.25 +                return c;
    1.26 +        }
    1.27 +    }
    1.28 +    return nil;
    1.29 +}
    1.30 +
    1.31 +
    1.32 ++ (UniqueWindowController*) openWith: (id)model
    1.33 +{
    1.34 +    UniqueWindowController *w = [self instanceWith: model];
    1.35 +    if( ! w ) {
    1.36 +        w = [[self alloc] initWith: model];
    1.37 +        [w showWindow: self];
    1.38 +    }
    1.39 +    [w.window makeKeyAndOrderFront: self];
    1.40 +    return w;
    1.41 +}
    1.42 +
    1.43 +
    1.44 +- (void) windowWillClose: (NSNotification*)n
    1.45 +{
    1.46 +    [self autorelease];
    1.47 +}
    1.48 +
    1.49 +
    1.50 +@end