/*

     File: WebViewController.m

 Abstract: The view controller for hosting the UIWebView feature of this sample.

  Version: 2.8

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 The Apple Software is provided by Apple on an "AS IS" basis.  APPLE

 MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION

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 */

#import "WebViewController.h"

#import "Constants.h"

@implementation WebViewController

@synthesize myWebView;

- (void)dealloc

{

    myWebView.delegate = nil;

    [myWebView release];

    [super dealloc];

}

- (void)viewDidLoad

{

    [super viewDidLoad];

    self.title = NSLocalizedString(@"WebTitle", @"");

    CGRect webFrame = [[UIScreen mainScreen] applicationFrame];

    webFrame.origin.y += kTopMargin + 5.0;  // leave from the URL input field and its label

    webFrame.size.height -= 40.0;

    self.myWebView = [[[UIWebView alloc] initWithFrame:webFrame] autorelease];

    self.myWebView.backgroundColor = [UIColor whiteColor];

    self.myWebView.scalesPageToFit = YES;

    self.myWebView.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight);

    self.myWebView.delegate = self;

    [self.view addSubview: self.myWebView];

    CGRect textFieldFrame = CGRectMake(kLeftMargin, kTweenMargin,

                                       self.view.bounds.size.width - (kLeftMargin * 2.0), kTextFieldHeight);

    UITextField *urlField = [[UITextField alloc] initWithFrame:textFieldFrame];

    urlField.borderStyle = UITextBorderStyleBezel;

    urlField.textColor = [UIColor blackColor];

    urlField.delegate = self;

    urlField.placeholder = @"<enter a URL>";

    urlField.text = @"http://www.apple.com";

    urlField.backgroundColor = [UIColor whiteColor];

    urlField.autoresizingMask = UIViewAutoresizingFlexibleWidth;

    urlField.returnKeyType = UIReturnKeyGo;

    urlField.keyboardType = UIKeyboardTypeURL;  // this makes the keyboard more friendly for typing URLs

    urlField.autocapitalizationType = UITextAutocapitalizationTypeNone; // don't capitalize

    urlField.autocorrectionType = UITextAutocorrectionTypeNo;   // we don't like autocompletion while typing

    urlField.clearButtonMode = UITextFieldViewModeAlways;

    [urlField setAccessibilityLabel:NSLocalizedString(@"URLTextField", @"")];

    [self.view addSubview:urlField];

    [urlField release];

    [self.myWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.apple.com/"]]];

}

// called after the view controller's view is released and set to nil.

// For example, a memory warning which causes the view to be purged. Not invoked as a result of -dealloc.

// So release any properties that are loaded in viewDidLoad or can be recreated lazily.

//

- (void)viewDidUnload

{

    [super viewDidUnload];

    // release and set to nil

    self.myWebView = nil;

}

#pragma mark -

#pragma mark UIViewController delegate methods

- (void)viewWillAppear:(BOOL)animated

{

    self.myWebView.delegate = self; // setup the delegate as the web view is shown

}

- (void)viewWillDisappear:(BOOL)animated

{

    [self.myWebView stopLoading];   // in case the web view is still loading its content

    self.myWebView.delegate = nil;  // disconnect the delegate as the webview is hidden

    [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;

}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation

{

    // we support rotation in this view controller

    return YES;

}

// this helps dismiss the keyboard when the "Done" button is clicked

- (BOOL)textFieldShouldReturn:(UITextField *)textField

{

    [textField resignFirstResponder];

    [self.myWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:[textField text]]]];

    return YES;

}

#pragma mark -

#pragma mark UIWebViewDelegate

- (void)webViewDidStartLoad:(UIWebView *)webView

{

    // starting the load, show the activity indicator in the status bar

    [UIApplication sharedApplication].networkActivityIndicatorVisible = YES;

}

- (void)webViewDidFinishLoad:(UIWebView *)webView

{

    // finished loading, hide the activity indicator in the status bar

    [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;

}

- (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error

{

    // load error, hide the activity indicator in the status bar

    [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;

    // report the error inside the webview

    NSString* errorString = [NSString stringWithFormat:

                             @"<html><center><font size=+5 color='red'>An error occurred:<br>%@</font></center></html>",

                             error.localizedDescription];

    [self.myWebView loadHTMLString:errorString baseURL:nil];

}

@end