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49f8fa1d8d
get rid of RCS_ID as shortly discussed with David and Manuel git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gsweb/trunk@37929 72102866-910b-0410-8b05-ffd578937521
162 lines
3.8 KiB
Objective-C
162 lines
3.8 KiB
Objective-C
/** GSWKeyValueAssociation.m - <title>GSWeb: Class GSWKeyValueAssociation</title>
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Copyright (C) 1999-2004 Free Software Foundation, Inc.
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Written by: Manuel Guesdon <mguesdon@orange-concept.com>
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Date: Jan 1999
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$Revision$
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$Date$
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This file is part of the GNUstep Web Library.
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<license>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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</license>
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**/
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#include "config.h"
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#include "GSWeb.h"
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#include <GNUstepBase/NSObject+GNUstepBase.h>
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//====================================================================
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@implementation GSWKeyValueAssociation
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//--------------------------------------------------------------------
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-(id)initWithKeyPath:(NSString*)aKeyPath
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{
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if ((self=[super init])) {
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ASSIGNCOPY(_keyPath,aKeyPath);
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_isValueSettable = ((_keyPath != nil) && ([_keyPath length] > 0));
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}
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return self;
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}
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//--------------------------------------------------------------------
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-(void)dealloc
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{
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DESTROY(_keyPath);
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[super dealloc];
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};
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//--------------------------------------------------------------------
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-(id)copyWithZone:(NSZone*)zone
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{
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GSWKeyValueAssociation* clone = [super copyWithZone:zone];
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ASSIGN(clone->_keyPath,_keyPath);
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return clone;
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};
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//--------------------------------------------------------------------
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// dw
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-(id)valueInComponent:(GSWComponent*)component
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{
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id retValue=nil;
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// thats what WO does:
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// retValue = [component valueForKeyPath: _keyPath];
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// but we need:
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retValue=[GSWAssociation valueInComponent: component
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forKeyPath:_keyPath];
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if (_debugEnabled)
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{
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[self _logPullValue:retValue
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inComponent:component];
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}
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return retValue;
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};
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//--------------------------------------------------------------------
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-(void)setValue:(id)aValue
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inComponent:(GSWComponent*)component
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{
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NSException *ex = nil;
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if ([_keyPath length]==0)
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{
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[NSException raise:NSInvalidArgumentException
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format:@"No key path when setting value %@ in object of class %@ for association %@",
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aValue,NSStringFromClass([component class]),self];
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}
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NS_DURING
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{
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[component validateTakeValue:aValue
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forKeyPath:_keyPath];
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}
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NS_HANDLER
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{
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ex = localException;
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}
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NS_ENDHANDLER;
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if (_debugEnabled)
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{
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[self _logPushValue:aValue
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inComponent:component];
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}
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if (ex != nil)
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{
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[component validationFailedWithException:ex
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value:aValue
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keyPath:_keyPath];
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}
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}
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- (void) _setValueNoValidation:(id) aValue
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inComponent:(GSWComponent*) component
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{
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if (_isValueSettable)
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{
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[component setValue:aValue
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forKeyPath:_keyPath];
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}
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}
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//--------------------------------------------------------------------
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-(BOOL)isValueConstant
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{
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return NO;
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};
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//--------------------------------------------------------------------
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-(BOOL)isValueSettable
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{
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return _isValueSettable;
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}
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//--------------------------------------------------------------------
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-(NSString*)description
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{
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return [NSString stringWithFormat:@"<%s %p - keyPath=%@>",
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object_getClassName(self),
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(void*)self,
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_keyPath];
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};
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//--------------------------------------------------------------------
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-(NSString*)keyPath
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{
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return _keyPath;
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};
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@end
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