/*
 * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer. 
 * 2.  Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution. 
 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
 *     its contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission. 
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#import <Cocoa/Cocoa.h>

@class WebDataSource;
@class WebMainResourceLoader;
@class WebIconLoader;
@class WebLoader;

@interface WebFrameLoader : NSObject
{
@public
    // Client for main resource.
    WebMainResourceLoader *mainResourceLoader;
    
    // Clients for other resources.
    NSMutableArray *subresourceLoaders;
    NSMutableArray *plugInStreamLoaders;
    WebIconLoader *iconLoader;
    
    WebDataSource *dataSource;
}

- (id)initWithDataSource:(WebDataSource *)ds;
// FIXME: should really split isLoadingIcon from hasLoadedIcon, no?
- (BOOL)hasIconLoader;
- (void)loadIconWithRequest:(NSURLRequest *)request;
- (void)stopLoadingIcon;
- (void)addPlugInStreamLoader:(WebLoader *)loader;
- (void)removePlugInStreamLoader:(WebLoader *)loader;
- (void)setDefersCallbacks:(BOOL)defers;
- (void)stopLoadingPlugIns;
- (BOOL)isLoadingMainResource;
- (BOOL)isLoadingSubresources;
- (BOOL)isLoading;
- (void)stopLoadingSubresources;
- (void)addSubresourceLoader:(WebLoader *)loader;
- (void)removeSubresourceLoader:(WebLoader *)loader;
- (NSData *)mainResourceData;
- (void)releaseMainResourceLoader;
- (void)cancelMainResourceLoad;
- (BOOL)startLoadingMainResourceWithRequest:(NSMutableURLRequest *)request identifier:(id)identifier;
- (void)stopLoadingWithError:(NSError *)error;

@end