/*
 * _CPCibClassSwapper.j
 * AppKit
 *
 * Created by Francisco Tolmasky.
 * Copyright 2009, 280 North, Inc.
 *
 * 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 2.1 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; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

@import <Foundation/CPObject.j>
@import <Foundation/CPString.j>


var _CPCibClassSwapperClassNameKey          = @"_CPCibClassSwapperClassNameKey",
    _CPCibClassSwapperOriginalClassNameKey  = @"_CPCibClassSwapperOriginalClassNameKey";

@implementation _CPCibClassSwapper : CPObject
{
}

+ (void)allocObjectWithCoder:(CPCoder)aCoder className:(CPString)aClassName
{
    // FIXME: Also check class classForClassName:
    var theClass = [aCoder classForClassName:aClassName];

    if (!theClass)
    {
        theClass = objj_lookUpClass(aClassName);

        if (!theClass)
            return nil;
    }

    return [theClass alloc];
}

+ (id)allocWithCoder:(CPCoder)aCoder
{
    if ([aCoder respondsToSelector:@selector(usesOriginalClasses)] && [aCoder usesOriginalClasses])
    {
        var theClassName = [aCoder decodeObjectForKey:_CPCibClassSwapperOriginalClassNameKey],
            object = [self allocObjectWithCoder:aCoder className:theClassName];
    }
    else
    {
        var theClassName = [aCoder decodeObjectForKey:_CPCibClassSwapperClassNameKey],
            object = [self allocObjectWithCoder:aCoder className:theClassName];

        if (!object)
        {
            CPLog.error("Unable to find class " + theClassName + " referenced in cib file.");

            object = [self allocObjectWithCoder:aCoder className:[aCoder decodeObjectForKey:_CPCibClassSwapperOriginalClassNameKey]];
        }
    }

    if (!object)
        [CPException raise:CPInvalidArgumentException reason:@"Unable to find class " + theClassName + " referenced in cib file."];

    return object;
}

@end