How do I disable default text selection behavior in a WKWebView

Question

I have an app that loads a WkWebView, in that WebView there is JavaScript that is triggered when a text range is selected within the content. That script displays a HTML control on the page.

The problem occurs when the IOS menu (copy/define/share) shows up.

Problem 1

When the text is selected (long press) the HTML control is displayed. When you lift your finger from the screen, the IOS copy/define thing shows up, and the HTML control disappears. Adjusting the text range with the UI controls brings the HTML control back.

Desired behavior:

The IOS "menu" whatever it is actually called, is not necessary and I dont want it to be displayed. I also do not want the HTML control to go away, but I don't know what IOS is doing to make it happen. On the HTML page itself, clicking anywhere but the action button removes the selection and the HTML control. How do I disable this behavior?

Problem 2

Attempting to adjust the text selection range with the ui control at the end of the selection sometimes results in everything prior to the endpoint ui control to be selected.

Desire behavior:

For it not to do this. How to I prevent it from moving the side of the selection control that I am not touching?

Dinh Nguyen Dinh Nguyen · Accepted Answer · 2016-01-08T14:54:48

I have a same problem and here is my solution: Selection menu shows in UICalloutBar. I find UICalloutBar view and remove it before it showed.

-(void) viewDidAppear:(BOOL)animated{
    [super viewWillAppear:animated];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(menuWillShow:) name:UIMenuControllerWillShowMenuNotification object:[UIMenuController sharedMenuController]];
}
-(void) viewWillDisappear:(BOOL)animated{
    [[NSNotificationCenter defaultCenter] removeObserver:self name:UIMenuControllerWillShowMenuNotification object:[UIMenuController sharedMenuController]];
    [super viewWillDisappear:animated];
}
-(void)findUI:(UIView*) view{
    if([@"UICalloutBar" isEqualToString:[[view class] description]]){
        //NSLog(@"UIView:%@",[[view class] description]);
        [view removeFromSuperview ];
    //[view setAlpha:0];
        return;
    }

    for(UIView* subview in view.subviews){
        [self findUI: subview];
    }
}
-(void)menuWillShow:(NSNotification *)notification
{
    NSArray* windows = [[UIApplication sharedApplication] windows];
    for(UIWindow* window in windows){
        if([@"UITextEffectsWindow" isEqualToString:[[window class] description]]){
            [self findUI:window];
        }
    }
}

How do I disable default text selection behavior in a WKWebView

1 Answers