/* 
   NSDocumentController.h

   The document controller class

   Copyright (C) 1999 Free Software Foundation, Inc.

   Author: Carl Lindberg <Carl.Lindberg@hbo.com>
   Date: 1999
   
   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.
*/ 

#ifndef _GNUstep_H_NSDocumentController
#define _GNUstep_H_NSDocumentController
#import <GNUstepBase/GSVersionMacros.h>

#if OS_API_VERSION(GS_API_MACOSX, GS_API_LATEST)

#include <Foundation/NSObject.h>
#include <AppKit/NSNibDeclarations.h>
#include <AppKit/NSUserInterfaceValidation.h>

@class NSArray;
@class NSError;
@class NSMutableArray;
@class NSURL;
@class NSString;

@class NSDocument;
@class NSMenuItem;
@class NSOpenPanel;
@class NSWindow;

@interface NSDocumentController : NSObject <NSCoding>
{
  @private
    NSMutableArray 	*_documents;
    NSMutableArray 	*_recent_documents;
    NSArray		*_types;		// from info.plist with key NSTypes
    NSTimeInterval      _autosavingDelay;
    struct __controller_flags {
        unsigned int should_create_ui:1;
        unsigned int RESERVED:31;
    } _controller_flags;
    void 		*_reserved1;
}

+ (id)sharedDocumentController;

/*" document creation "*/
// doesn't create the windowControllers
- (id)makeUntitledDocumentOfType:(NSString *)type;
- (id)makeDocumentWithContentsOfFile:(NSString *)fileName ofType:(NSString *)type;
// creates window controllers
- (id)openUntitledDocumentOfType:(NSString*)type display:(BOOL)display;
- (id)openDocumentWithContentsOfFile:(NSString *)fileName display:(BOOL)display;

- (id)makeDocumentWithContentsOfURL:(NSURL *)url ofType:(NSString *)type;
- (id)openDocumentWithContentsOfURL:(NSURL *)url display:(BOOL)display;
#if OS_API_VERSION(MAC_OS_X_VERSION_10_4, GS_API_LATEST)
- (id)makeDocumentForURL:(NSURL *)url
       withContentsOfURL:(NSURL *)contents
                  ofType:(NSString *)type
                   error:(NSError **)err;
- (id)makeDocumentWithContentsOfURL:(NSURL *)url 
			     ofType:(NSString *)type 
			      error:(NSError **)err;
- (id)makeUntitledDocumentOfType:(NSString *)type 
			   error:(NSError **)err;
- (id)openDocumentWithContentsOfURL:(NSURL *) url
			    display:(BOOL) flag
			      error:(NSError **) err;
- (id)openUntitledDocumentAndDisplay:(BOOL)flag 
			       error:(NSError **)err;
- (BOOL)reopenDocumentForURL:(NSURL *)url
	   withContentsOfURL:(NSURL *)contents
		       error:(NSError **)err;
- (BOOL)presentError:(NSError *)err;
- (void)presentError:(NSError *)err
      modalForWindow:(NSWindow *)win
	    delegate:(id)delegate 
  didPresentSelector:(SEL)sel
	 contextInfo:(void *)context;
- (NSError *)willPresentError:(NSError *)err;
#endif 

/*" With or without UI "*/
- (BOOL)shouldCreateUI;
- (void)setShouldCreateUI:(BOOL)flag;

/*" Actions "*/
- (IBAction)saveAllDocuments:(id)sender;
- (IBAction)openDocument:(id)sender;
- (IBAction)newDocument:(id)sender;
- (IBAction)clearRecentDocuments:(id)sender;
#if OS_API_VERSION(MAC_OS_X_VERSION_10_4, GS_API_LATEST)
- (NSUInteger) maximumRecentDocumentCount;
#endif

/*" Recent Documents "*/
- (void)noteNewRecentDocument:(NSDocument *)aDocument;
- (void)noteNewRecentDocumentURL:(NSURL *)anURL;
- (NSArray *)recentDocumentURLs;

/*" Open panel "*/
- (NSArray *)URLsFromRunningOpenPanel;
- (NSArray *)fileNamesFromRunningOpenPanel;
- (NSInteger)runModalOpenPanel:(NSOpenPanel *)openPanel forTypes:(NSArray *)openableFileExtensions;

/*" Document management "*/
- (void)addDocument:(NSDocument *)document;
- (void)removeDocument:(NSDocument *)document;
- (BOOL)closeAllDocuments;
- (void)closeAllDocumentsWithDelegate:(id)delegate 
		  didCloseAllSelector:(SEL)didAllCloseSelector 
			  contextInfo:(void *)contextInfo;
- (BOOL)reviewUnsavedDocumentsWithAlertTitle:(NSString *)title cancellable:(BOOL)cancellable;
- (void)reviewUnsavedDocumentsWithAlertTitle:(NSString *)title 
				 cancellable:(BOOL)cancellable 
				    delegate:(id)delegate
			didReviewAllSelector:(SEL)didReviewAllSelector 
				 contextInfo:(void *)contextInfo;
- (NSArray *)documents;
- (BOOL)hasEditedDocuments;
- (id)currentDocument;
- (NSString *)currentDirectory;
- (id)documentForWindow:(NSWindow *)window;
- (id)documentForFileName:(NSString *)fileName;
#if OS_API_VERSION(MAC_OS_X_VERSION_10_4, GS_API_LATEST)
- (id)documentForURL:(NSURL *)url;
#endif 


/*" Menu validation "*/
- (BOOL)validateMenuItem:(NSMenuItem *)anItem;
- (BOOL)validateUserInterfaceItem:(id <NSValidatedUserInterfaceItem>)anItem;

/*" Types and extensions "*/
- (NSString *)displayNameForType:(NSString *)type;
- (NSString *)typeFromFileExtension:(NSString *)fileExtension;
- (NSArray *)fileExtensionsFromType:(NSString *)type;
- (Class)documentClassForType:(NSString *)type;
#if OS_API_VERSION(MAC_OS_X_VERSION_10_4, GS_API_LATEST)
- (NSString *)defaultType;
- (NSArray *)documentClassNames;
- (NSString *)typeForContentsOfURL:(NSURL *)url error:(NSError **)err;
#endif 

#if OS_API_VERSION(MAC_OS_X_VERSION_10_4, GS_API_LATEST)
/* Autosaving */
- (NSTimeInterval)autosavingDelay;
- (void)setAutosavingDelay:(NSTimeInterval)autosavingDelay;
#endif 

@end

#endif // GS_API_MACOSX

#endif // _GNUstep_H_NSDocumentController