libs-gui/Source/NSNibOutletConnector.m

81 lines
2.5 KiB
Objective-C

/*
<title>NSNibOutletConnector</title>
<abstract>Implementation of NSNibOutletConnector</abstract>
Copyright (C) 1999, 2015 Free Software Foundation, Inc.
Author: Richard Frith-Macdonald <richard@branstorm.co.uk>
Date: 1999
Author: Fred Kiefer <fredkiefer@gmx.de>
Date: August 2015
This file is part of the GNUstep GUI Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; see the file COPYING.LIB.
If not, see <http://www.gnu.org/licenses/> or write to the
Free Software Foundation, 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#import <Foundation/NSException.h>
#import <Foundation/NSString.h>
#import "AppKit/NSNibOutletConnector.h"
@implementation NSNibOutletConnector
- (void) establishConnection
{
NS_DURING
{
if (_src != nil)
{
NSString *selName;
SEL sel;
selName = [NSString stringWithFormat: @"set%@%@:",
[[_tag substringToIndex: 1] uppercaseString],
[_tag substringFromIndex: 1]];
sel = NSSelectorFromString(selName);
if (sel && [_src respondsToSelector: sel])
{
[_src performSelector: sel withObject: _dst];
}
else
{
/*
* We cannot use the KVC mechanism here, as this would always retain _dst
* and it could also affect _setXXX methods and _XXX ivars that aren't
* affected by the Cocoa code.
*/
const char *name = [_tag cString];
Class class = object_getClass(_src);
Ivar ivar = class_getInstanceVariable(class, name);
if (ivar != 0)
{
object_setIvar(_src, ivar, _dst);
}
}
}
}
NS_HANDLER
{
NSLog(@"Error while establishing connection %@: %@", self, [localException reason]);
}
NS_ENDHANDLER;
}
@end