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/** <title>GSNibLoader</title>
<abstract>Nib (Cocoa XML) model loader</abstract>
Copyright (C) 1997, 1999 Free Software Foundation, Inc.
Author: Gregory John Casamento <greg_casamento@yahoo.com>
Date: 2005
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 "config.h"
#import <Foundation/NSArchiver.h>
#import <Foundation/NSAutoreleasePool.h>
#import <Foundation/NSData.h>
#import <Foundation/NSDebug.h>
#import <Foundation/NSDictionary.h>
#import <Foundation/NSException.h>
#import <Foundation/NSFileManager.h>
#import <Foundation/NSKeyedArchiver.h>
#import <Foundation/NSString.h>
#import "GNUstepGUI/GSModelLoaderFactory.h"
#import "GNUstepGUI/GSNibLoading.h"
@interface GSNibLoader : GSModelLoader
@end
@implementation GSNibLoader
+ (void) initialize
{
// should do something...
}
+ (NSString *)type
{
return @"nib";
}
+ (float) priority
{
return 3.0;
}
- (BOOL) loadModelData: (NSData *)data
externalNameTable: (NSDictionary *)context
withZone: (NSZone *)zone;
{
BOOL loaded = NO;
CREATE_AUTORELEASE_POOL(pool);
NS_DURING
{
if (data != nil)
{
NSKeyedUnarchiver *unarchiver = [[NSKeyedUnarchiver alloc]
initForReadingWithData: data];
if (unarchiver != nil)
{
id obj;
NSDebugLog(@"Invoking unarchiver");
[unarchiver setObjectZone: zone];
obj = [unarchiver decodeObjectForKey: @"IB.objectdata"];
if (obj != nil)
{
if ([obj isKindOfClass: [NSIBObjectData class]])
{
NSDebugLog(@"Calling awakeWithContext");
[obj awakeWithContext: context];
loaded = YES;
}
else
{
NSLog(@"Nib without container object!");
}
}
else
{
NSLog(@"IB.objectdata not found when loading nib.");
}
RELEASE(unarchiver);
}
else
{
NSLog(@"Could not instantiate unarchiver.");
}
}
else
{
NSLog(@"Data passed to nib loading method is nil.");
}
}
NS_HANDLER
{
NSLog(@"Exception occurred while loading model: %@",[localException reason]);
// TEST_RELEASE(unarchiver);
}
NS_ENDHANDLER
if (loaded == NO)
{
NSLog(@"Failed to load Nib\n");
}
RELEASE(pool);
return loaded;
}
- (NSData *) dataForFile: (NSString *)fileName
{
NSFileManager *mgr = [NSFileManager defaultManager];
BOOL isDir = NO;
NSDebugLog(@"Loading Nib `%@'...\n", fileName);
if ([mgr fileExistsAtPath: fileName isDirectory: &isDir])
{
NSData *data = nil;
// if the data is in a directory, then load from keyedobjects.nib in the directory
if (isDir == NO)
{
data = [NSData dataWithContentsOfFile: fileName];
NSDebugLog(@"Loaded data from file...");
}
else
{
NSString *newFileName = [fileName stringByAppendingPathComponent: @"keyedobjects.nib"];
data = [NSData dataWithContentsOfFile: newFileName];
NSDebugLog(@"Loaded data from %@...", newFileName);
}
return data;
}
else
{
NSLog(@"NIB file specified %@, could not be found.", fileName);
}
return nil;
}
@end
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