AboutController.m

/*
 Application info controller
 
 Copyright 2013 Thincast Technologies GmbH, Author: Martin Fleisz
 
 This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
 If a copy of the MPL was not distributed with this file, You can obtain one at
 http://mozilla.org/MPL/2.0/.
 */
 
#import "AboutController.h"
#import "Utils.h"
 
@implementation AboutController
 
// The designated initializer.  Override if you create the controller programmatically and want to
// perform customization that is not appropriate for viewDidLoad.
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
  if ((self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]))
  {
 
    // set title and tab-bar image
    [self setTitle:NSLocalizedString(@"About", @"About Controller title")];
    UIImage *tabBarIcon = [UIImage
        imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"tabbar_icon_about"
                                                                ofType:@"png"]];
    [self setTabBarItem:[[[UITabBarItem alloc]
                            initWithTitle:NSLocalizedString(@"About", @"Tabbar item about")
                                    image:tabBarIcon
                                      tag:0] autorelease]];
 
    last_link_clicked = nil;
  }
  return self;
}
 
- (void)dealloc
{
  [super dealloc];
  [last_link_clicked release];
}
 
// Implement loadView to create a view hierarchy programmatically, without using a nib.
- (void)loadView
{
  WKWebViewConfiguration *config = [[[WKWebViewConfiguration alloc] init] autorelease];
  [config setDataDetectorTypes:WKDataDetectorTypeNone];
  webView = [[[WKWebView alloc] initWithFrame:CGRectZero configuration:config] autorelease];
  [webView
      setAutoresizingMask:(UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight)];
  [webView setAutoresizesSubviews:YES];
  [webView setNavigationDelegate:self];
  [self setView:webView];
}
 
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad
{
  [super viewDidLoad];
 
  NSString *filename = (IsPhone() ? @"about_phone" : @"about");
  NSString *htmlString = [[[NSString alloc]
      initWithContentsOfFile:[[NSBundle mainBundle] pathForResource:filename
                                                             ofType:@"html"
                                                        inDirectory:@"about_page"]
                    encoding:NSUTF8StringEncoding
                       error:nil] autorelease];
 
  [webView
      loadHTMLString:[NSString stringWithFormat:htmlString, TSXAppFullVersion(),
                                                [[UIDevice currentDevice] systemName],
                                                [[UIDevice currentDevice] systemVersion],
                                                [[UIDevice currentDevice] model]]
             baseURL:[NSURL fileURLWithPath:[[[NSBundle mainBundle] bundlePath]
                                                stringByAppendingPathComponent:@"about_page"]]];
}
 
// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
  return YES;
}
 
#pragma mark -
#pragma mark WKWebView callbacks
- (void)webView:(WKWebView *)wv
    decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction
                    decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler
{
  NSURLRequest *request = [navigationAction request];
 
  if ([[request URL] isFileURL])
  {
    decisionHandler(WKNavigationActionPolicyAllow);
    return;
  }
 
  if ([navigationAction navigationType] == WKNavigationTypeLinkActivated)
  {
    [last_link_clicked release];
    last_link_clicked = [[[request URL] absoluteString] retain];
    UIAlertController *alert = [UIAlertController
        alertControllerWithTitle:NSLocalizedString(@"External Link",
                                                   @"External Link Alert Title")
                         message:[NSString
                                     stringWithFormat:
                                         NSLocalizedString(
                                             @"Open [%@] in Browser?",
                                             @"Open link in browser (with link as parameter)"),
                                         last_link_clicked]
                  preferredStyle:UIAlertControllerStyleAlert];
 
    [alert addAction:[UIAlertAction actionWithTitle:NSLocalizedString(@"No", @"No Button")
                                              style:UIAlertActionStyleCancel
                                            handler:nil]];
    [alert
        addAction:[UIAlertAction
                      actionWithTitle:NSLocalizedString(@"OK", @"OK Button")
                                style:UIAlertActionStyleDefault
                              handler:^(UIAlertAction *action) {
                                [[UIApplication sharedApplication]
                                              openURL:[NSURL URLWithString:last_link_clicked]
                                              options:@{}
                                    completionHandler:nil];
                              }]];
 
    [self presentViewController:alert animated:YES completion:nil];
 
    decisionHandler(WKNavigationActionPolicyCancel);
    return;
  }
 
  decisionHandler(WKNavigationActionPolicyAllow);
}
 
@end