#import "MyViewController.h"

 #import "BLIP.h"

 @implementation MyViewController

 @synthesize textField;

 @synthesize label;

 @synthesize string;

 - (void)viewDidLoad {

     // When the user starts typing, show the clear button in the text field.

     textField.clearButtonMode = UITextFieldViewModeWhileEditing;

     label.text = @"Opening listener socket...";

     _listener = [[BLIPListener alloc] initWithPort: 12345];

     _listener.delegate = self;

     _listener.pickAvailablePort = YES;

     _listener.bonjourServiceType = @"_blipecho._tcp";

     [_listener open];

 }

 - (void)updateString {

 	// Store the text of the text field in the 'string' instance variable.

 	self.string = textField.text;

     // Set the text of the label to the value of the 'string' instance variable.

 	label.text = self.string;

 }

 - (BOOL)textFieldShouldReturn:(UITextField *)theTextField {

 	// When the user presses return, take focus away from the text field so that the keyboard is dismissed.

 	if (theTextField == textField) {

 		[textField resignFirstResponder];

         // Invoke the method that changes the greeting.

         [self updateString];

 	}

 	return YES;

 }

 - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event

 {

     // Dismiss the keyboard when the view outside the text field is touched.

     [textField resignFirstResponder];

     // Revert the text field to the previous value.

     [super touchesBegan:touches withEvent:event];

 }

 - (void)dealloc {

 	[textField release];

 	[label release];

     [_listener close];

     [_listener release];

 	[super dealloc];

 }

 #pragma mark BLIP Listener Delegate:

 - (void) listenerDidOpen: (TCPListener*)listener

 {

     label.text = [NSString stringWithFormat: @"Listening on port %i",listener.port];

 }

 - (void) listener: (TCPListener*)listener failedToOpen: (NSError*)error

 {

     label.text = [NSString stringWithFormat: @"Failed to open listener on port %i: %@",

                   listener.port,error];

 }

 - (void) listener: (TCPListener*)listener didAcceptConnection: (TCPConnection*)connection

 {

     label.text = [NSString stringWithFormat: @"Accepted connection from %@",

                   connection.address];

     connection.delegate = self;

 }

 - (void) connection: (TCPConnection*)connection failedToOpen: (NSError*)error

 {

     label.text = [NSString stringWithFormat: @"Failed to open connection from %@: %@",

                   connection.address,error];

 }

 - (void) connection: (BLIPConnection*)connection receivedRequest: (BLIPRequest*)request

 {

     NSString *message = [[NSString alloc] initWithData: request.body encoding: NSUTF8StringEncoding];

     label.text = [NSString stringWithFormat: @"Echoed:\n“%@”",message];

     [request respondWithData: request.body contentType: request.contentType];

 }

 - (void) connectionDidClose: (TCPConnection*)connection;

 {

     label.text = [NSString stringWithFormat: @"Connection closed from %@",

                   connection.address];

 }

 @end