Disable links in WKWebView?

Question

I want to load page in WKWebView, and then disable links in it. Most of the links are relative.

Tried with webView:decidePolicyForNavigationAction:decisionHandler: but new page is loaded before it's called and relative links don't appear if i use navigationAction.request.URL . Also tried with UIDelegate, and that didn't load at all.

Any ideas? Obj C is prefferable, but Swift is also ok.

EDIT:

OK, I'll rephrase the question a bit.

When user presses link I want to stop WKWebView to open it, and instead save that link to array. Maybe open it manually with loadrequest if certain conditions are met.

Code is simple

- (void)viewDidLoad {
    [super viewDidLoad];

    NSString *sURL = @"https://www.mytestingwebsite.com";
    NSURL *URL = [NSURL URLWithString:sURL];

    WKWebViewConfiguration *theConfiguration = [[WKWebViewConfiguration alloc] init];
    [self addUserScriptsToUserContentController:theConfiguration.userContentController];

    WKWebView *webView = [[WKWebView alloc] initWithFrame:self.view.frame configuration:theConfiguration];
    webView.navigationDelegate = self;
    webView.UIDelegate = self;
    //webView.allowsLinkPreview = TRUE;

    NSURLRequest *nsrequest=[NSURLRequest requestWithURL:URL];
    [webView loadRequest:nsrequest];
    [self.view addSubview:webView];
}

They've used in WWDC 2014, video 206 NSURL *selectedURL = navigationAction.request.URL; to detect and disable external links. But that obviously isn't working for me. I've just added NSLog and breakpoint to test it.

Tried it. But default value is false. If it's true, press hold works, but i want to disable it completely and open it manually if certain conditions are met. — elektricni, Aug 27 '16 at 14:00
I'm afraid you would be mis-using `webView:decidePolicyForNavigationAction:decisionHandler:`. Please show the code you have tried. — OOPer, Aug 27 '16 at 15:06

score 5 · Answer 1 · answered Nov 03 '17 at 00:45

5

func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Swift.Void) {
    guard navigationAction.navigationType == .other || navigationAction.navigationType == .reload  else {
        decisionHandler(.cancel)
        return
    }
    decisionHandler(.allow)
}

answered Nov 03 '17 at 00:45

pws5068

2,224
4
35
49

With some javascript, links may keep type `.other`, which means `navigationType` is very unreliable. – Cœur Jul 20 '18 at 09:45
Is there anything else that needs to be added? This function doesn't get called when I click on a link in my MKWebView. – Gibraltar Mar 15 '19 at 03:53
It still falls backs to the allow case when the user clicks on a side panel menu or etc. – Eray Alparslan Mar 28 '22 at 22:16
I like that solution, for now created with it simple filtering based on list of allowed urls, then I check host and scheme. Need to investigate though why there are so many different callbacks for WKNavigationDelegate and if it's possible that something slips through when implementing just this one - so watch out :D – kolboc May 17 '22 at 13:41

score 1 · Accepted Answer · answered Aug 31 '16 at 11:51

1

Since I couldn't come up with something smarter, I did it with javascript.

Basically, you load js file, look for container and links, and set href="javascript:(void)" for links you want.

answered Aug 31 '16 at 11:51

elektricni

319
1
5
12

1

How have you used this? can you explain with one example. – Anil shukla Jul 02 '19 at 05:25

score 0 · Answer 3 · answered May 18 '17 at 14:09

Try:

func webView(_ webView: WKWebView, decidePolicyFor navigationResponse: WKNavigationResponse, decisionHandler: @escaping (WKNavigationResponsePolicy) -> Void)
{
    decisionHandler(navigationResponse.response.url?.absoluteString == mainLink ? .allow : .cancel)
}

score 0 · Answer 4 · answered Jul 02 '19 at 06:29

I've come across with one solution to completely disable links including JavaScript.

I have used WKWebview in place of UIWebview to implement this.

Create one BOOL variable and set it YES in view did load.

allowLoad = YES;

Put this below code where you are loading URL to disable Java script.

WKPreferences *preferences = [[WKPreferences alloc] init];
preferences.javaScriptEnabled = NO;
WKWebViewConfiguration *configuration = [[WKWebViewConfiguration alloc] init];
configuration.preferences = preferences;
self.webView =[[WKWebView alloc] initWithFrame:CGRectMake(0.0, 0.0, self.view.frame.size.width, self.view.frame.size.height) configuration:configuration];
self.webView.navigationDelegate = self;
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"Your URL that you want to lead"]];
[self.webView loadRequest:request];

Now add required delegate methods for WKNavigationDelegate to disable link -

- (void)webView:(WKWebView *)webView didStartProvisionalNavigation:(WKNavigation *)navigation {
[MBProgressHUD showHUDWithText:SyLocalizedString(@"Loading", @"L10N comment TBD") addedTo:self.view];}

- (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation {
[MBProgressHUD hideAllProgressHUDsForView:self.view animated:YES];
allowLoad = NO;}

- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler {
if (allowLoad == YES) {
    decisionHandler(WKNavigationActionPolicyAllow);
} else {
    decisionHandler(WKNavigationActionPolicyCancel);
}}

Now after this code, you'll not be able to open any link on the page that is opened.

score -2 · Answer 5 · answered Dec 06 '19 at 10:27

-2

You can use below code. But it will disable user interaction of webView as a whole. In Swift 4:

webView.isUserInteractionEnabled = false

answered Dec 06 '19 at 10:27

Muhammad Haroon Iqbal

470
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7
18

Disable links in WKWebView?

5 Answers5

Linked