/*

     File: MailComposerViewController.m

 Abstract: 

  Version: 1.1

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 */

#import "MailComposerViewController.h"

@implementation MailComposerViewController

@synthesize message;

-(IBAction)showPicker:(id)sender

{

    // This sample can run on devices running iPhone OS 2.0 or later  

    // The MFMailComposeViewController class is only available in iPhone OS 3.0 or later. 

    // So, we must verify the existence of the above class and provide a workaround for devices running 

    // earlier versions of the iPhone OS. 

    // We display an email composition interface if MFMailComposeViewController exists and the device can send emails.

    // We launch the Mail application on the device, otherwise.

    Class mailClass = (NSClassFromString(@"MFMailComposeViewController"));

    if (mailClass != nil)

    {

        // We must always check whether the current device is configured for sending emails

        if ([mailClass canSendMail])

        {

            [self displayComposerSheet];

        }

        else

        {

            [self launchMailAppOnDevice];

        }

    }

    else

    {

        [self launchMailAppOnDevice];

    }

}

#pragma mark -

#pragma mark Compose Mail

// Displays an email composition interface inside the application. Populates all the Mail fields. 

-(void)displayComposerSheet 

{

    MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];

    picker.mailComposeDelegate = self;

    [picker setSubject:@"Hello from California!"];

    // Set up recipients

    NSArray *toRecipients = [NSArray arrayWithObject:@"first@example.com"]; 

    NSArray *ccRecipients = [NSArray arrayWithObjects:@"second@example.com", @"third@example.com", nil]; 

    NSArray *bccRecipients = [NSArray arrayWithObject:@"fourth@example.com"]; 

    [picker setToRecipients:toRecipients];

    [picker setCcRecipients:ccRecipients];  

    [picker setBccRecipients:bccRecipients];

    // Attach an image to the email

    NSString *path = [[NSBundle mainBundle] pathForResource:@"rainy" ofType:@"png"];

    NSData *myData = [NSData dataWithContentsOfFile:path];

    [picker addAttachmentData:myData mimeType:@"image/png" fileName:@"rainy"];

    // Fill out the email body text

    NSString *emailBody = @"It is raining in sunny California!";

    [picker setMessageBody:emailBody isHTML:NO];

    [self presentModalViewController:picker animated:YES];

    [picker release];

}

// Dismisses the email composition interface when users tap Cancel or Send. Proceeds to update the message field with the result of the operation.

- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error 

{   

    message.hidden = NO;

    // Notifies users about errors associated with the interface

    switch (result)

    {

        case MFMailComposeResultCancelled:

            message.text = @"Result: canceled";

            break;

        case MFMailComposeResultSaved:

            message.text = @"Result: saved";

            break;

        case MFMailComposeResultSent:

            message.text = @"Result: sent";

            break;

        case MFMailComposeResultFailed:

            message.text = @"Result: failed";

            break;

        default:

            message.text = @"Result: not sent";

            break;

    }

    [self dismissModalViewControllerAnimated:YES];

}

#pragma mark -

#pragma mark Workaround

// Launches the Mail application on the device.

-(void)launchMailAppOnDevice

{

    NSString *recipients = @"mailto:first@example.com?cc=second@example.com,third@example.com&subject=Hello from California!";

    NSString *body = @"&body=It is raining in sunny California!";

    NSString *email = [NSString stringWithFormat:@"%@%@", recipients, body];

    email = [email stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:email]];

}

#pragma mark -

#pragma mark Unload views

- (void)viewDidUnload 

{

    // Release any retained subviews of the main view.

    // e.g. self.myOutlet = nil;

    self.message = nil;

}

#pragma mark -

#pragma mark Memory management

- (void)dealloc 

{

    [message release];

    [super dealloc];

}

@end