/*

File:     QTKitPlayerAppDelegate.m

Abstract: Demonstrates how to build and extend a QuickTime media player 

          application, using the new QTKit framework available in QuickTime 7.

Version: 1.0

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*/

#import "QTKit/QTKit.h"

#import "QTKitPlayerAppDelegate.h"

#import "MovieDocument.h"

enum

{

    kQTKitPlayerOpenAsData

};

@implementation QTKitPlayerAppDelegate

#pragma mark --- methods ---

- (BOOL)createMovieDocumentWithFile:(NSString *)fileName asData:(BOOL)asData

{

    NSDocument              *movieDocument = nil;

    NSDocumentController    *documentController;

    BOOL                    success = YES;

    // init

    documentController = [NSDocumentController sharedDocumentController];

    // try to create the document from the file

    if (fileName)

    {

        if (asData)

            movieDocument = [documentController makeDocumentWithContentsOfFile:fileName ofType:@"MovieDocumentData"];

        else

            movieDocument = [documentController makeDocumentWithContentsOfFile:fileName ofType:@"MovieDocument"];

    }

    // add the document

    if (movieDocument)

    {

        [documentController addDocument:movieDocument];

        // setup

        [movieDocument makeWindowControllers];

        [movieDocument updateChangeCount:NSChangeCleared];

        [movieDocument showWindows];

    }

    else

    {

        NSRunAlertPanel(@"Invalid movie", @"The file is not a valid movie.", nil, nil, nil);

        success = NO;

    }

    return success;

}

- (id)openDocumentWithContentsOfFile:(NSString *)fileName display:(BOOL)displayFlag

{

    // first check whether we already have a document for this file

    NSDocumentController *sharedDocController = [NSDocumentController sharedDocumentController];

    MovieDocument *movieDocument = [sharedDocController documentForFileName:fileName];

    if (movieDocument)

    {   // we've got one, just bring it forward

        if (displayFlag)

        {

            [movieDocument showWindows];

        }

    }

    else 

    {   // we must create a new document.

        // we always create a movie document regardless of type

        // init

        movieDocument = [[[MovieDocument allocWithZone:[self zone]] initWithContentsOfFile:fileName ofType:@"mov"] autorelease];

        // set up the document

        if (movieDocument)

        {

            // add the document

            [sharedDocController addDocument:movieDocument];

            // set up the document

            if ([sharedDocController shouldCreateUI])

            {

                [movieDocument makeWindowControllers];

                if (displayFlag)

                {

                    [movieDocument showWindows];

                }

            }

        }

    }

    return movieDocument;

}

- (BOOL)panel:(id)sender shouldShowFilename:(NSString *)filename 

{

    BOOL isDir = NO;

    [[NSFileManager defaultManager] fileExistsAtPath:filename isDirectory:&isDir];

    if (isDir)

    {

        return YES;

    }

    else

    {

        return [QTMovie canInitWithFile:filename];

    }

}

- (void)openDocument:(id)sender {

    NSOpenPanel *openPanel = [NSOpenPanel openPanel];

    [openPanel setDelegate:self];

    [openPanel setAllowsMultipleSelection:NO];

    // files are filtered through the panel:shouldShowFilename: method above

    if ([openPanel runModalForTypes:nil] == NSOKButton) {

        [self openDocumentWithContentsOfFile:[[openPanel filenames] lastObject] display:YES];

    }

}

#pragma mark --- delegates ---

- (BOOL)application:(NSApplication *)theApplication openFile:(NSString *)filename

{

    return (nil != [self openDocumentWithContentsOfFile:filename display:YES]);

}

@end