/*

File: QTKitPlayerAppDelegate.m

Abstract: QTKitPlayer Application Delegate to handle opening of

               movies from URLs and movie Inspector windows.

Version: 1.0

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*/

#import "QTKit/QTKit.h"

#import "QTKitPlayerAppDelegate.h"

#import "MovieDocument.h"

enum

{

    kQTKitPlayerOpenAsURL = 0,

    kQTKitPlayerOpenAsData

};

@implementation QTKitPlayerAppDelegate

- (void) dealloc

{

    [mInspectorController release];

    [super dealloc];

}

#pragma mark --- NSMenu validation protocol ---

- (BOOL)validateMenuItem:(NSMenuItem *)menuItem

{

    BOOL    valid = NO;

    SEL     action;

    // init

    action = [menuItem action];

    // validate

    if (action == @selector(doOpenURL:))

        valid = YES;

    else if (action == @selector(doOpenURLData:))

        valid = YES;

    else if((action == @selector(showInspectorWindow:)))

    {

        valid = YES;

    }

    else

        valid = [[NSDocumentController sharedDocumentController] validateMenuItem:menuItem];

    return valid;

}

#pragma mark --- OpenURLPanel delegates ---

- (void)openURLPanelDidEnd:(OpenURLPanel *)openURLPanel returnCode:(int)returnCode contextInfo:(void *)contextInfo

{

    BOOL closePanel = YES;

    // create the movie document

    if (returnCode == NSOKButton)

        closePanel = [self createMovieDocumentWithURL:[openURLPanel url] asData:((long)contextInfo == kQTKitPlayerOpenAsData)];

    if (closePanel)

        [openURLPanel close];

}

#pragma mark --- actions ---

- (IBAction)doOpenURL:(id)sender

{

    [[OpenURLPanel openURLPanel] beginSheetWithWindow:nil delegate:self didEndSelector:@selector(openURLPanelDidEnd:returnCode:contextInfo:) contextInfo:((void *)kQTKitPlayerOpenAsURL)];

}

- (IBAction)doOpenURLData:(id)sender

{

    [[OpenURLPanel openURLPanel] beginSheetWithWindow:nil delegate:self didEndSelector:@selector(openURLPanelDidEnd:returnCode:contextInfo:) contextInfo:((void *)kQTKitPlayerOpenAsData)];

}

// Create and present a Movie Inspector window

- (IBAction)showInspectorWindow:(id)sender

{

    // Create Inspector window 

    if (!mInspectorController)

    {

        mInspectorController = [[MovieInspectorController alloc] init];

    }

    // Show the window

    [mInspectorController  doShowWindow];

    // Display info. in the window for the current movie document

    [mInspectorController updateInspectorWindowForCurrentMovie];    

}

#pragma mark --- methods ---

- (BOOL)createMovieDocumentWithURL:(NSURL *)url asData:(BOOL)asData

{

    NSDocument      *movieDocument = nil;

    NSDocumentController    *documentController;

    BOOL            success = YES;

    // init

    documentController = [NSDocumentController sharedDocumentController];

    // try to create the document from the URL

    if (url)

    {

        if (asData)

            movieDocument = [documentController makeDocumentWithContentsOfURL:url ofType:@"MovieDocumentData" error:nil];

        else

            movieDocument = [documentController makeDocumentWithContentsOfURL:url ofType:@"MovieDocument" error:nil];

    }

    // add the document

    if (movieDocument)

    {

        [documentController addDocument:movieDocument];

        // setup

        [movieDocument makeWindowControllers];

        [movieDocument updateChangeCount:NSChangeCleared];

        [movieDocument showWindows];

    }

    else

    {

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

        success = NO;

    }

    return success;

}

// Getter:

// returns the MovieInspectorController instance

-(MovieInspectorController *)inspectorWindowController

{

    return [[mInspectorController retain] autorelease];

}

// The inspector controller will tell us when it 

// closes it's inspector window so we can release

// our reference to it

-(void)inspectorWindowHasClosed

{

    if (mInspectorController)

    {

        // Free the MovieInspectorController instance

        [mInspectorController release];

        mInspectorController = nil;

    }

}

#pragma mark --- delegates ---

// don't want an untitled document opened upon program launch

// so return NO here

- (BOOL)applicationShouldOpenUntitledFile:(NSApplication *)sender 

{ 

    return NO; 

}

@end