Interacting and Submitting HTML form with JavaScript in Swift

Question

Trying to submit an HTML form / clicking a button from this web page: https://www.vegvesen.no/kjoretoy/Eie+og+vedlikeholde/skilt/personlig-bilskilt/sok-om-personlig-bilskilt

I've tried to use both .submit() and .click() with no success

webView.evaluateJavaScript("document.getElementById('personlig-kjennemerke').click();", completionHandler: nil)

So what I try to do is to fill in the text field with "REGNR" I then try to click the orange button to submit the form and access the information I am looking for.

I am able to fill in the textfield by using:

   webView.evaluateJavaScript("document.getElementById('tegnkombinasjon').val    ue='\(plateNumber)'") { (value, error) in

        }

Picture of the button I want to press and the text field I try to fill in

But since I'm not able to click the button programmatically I've tried to actually click it in a subview. The page then tells me I have to fill in the text field first even though I have programmatically.

So not only am I unable to click the button, but I'm also wondering how I can make the web page understand that the text field actually already contains text.

kkiermasz · Accepted Answer · 2018-08-24 20:44:52Z

1

Try this:

webView.evaluateJavaScript("document.getElementsByName(\"sjekkreg\")[0].elements[2].click()")

Why by name? Because that form doesn't have an id.

Also I see your form has custom function to send that form:

pkCtrl.submit(mineFelt,sjekkreg)

edited Aug 24, 2018 at 20:44

answered Aug 24, 2018 at 8:28

kkiermasz

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7 Comments

kkiermasz Over a year ago

Excuse me. I've forgot getElementsByName returns an array. Now try above code.

kkiermasz Over a year ago

@Shift Ok, try my function now. This is terrible hard coding, but this form is too.

Shift Over a year ago

Yes that worked great! Only had to change to \"sjekkreg\" as it was from your previous suggestion. Do you have any idea how I can let the web page know that I actually added text to the field? Because I literally have to manually click the text field and add or remove one character for it to understand the rest is there.

kkiermasz Over a year ago

@Shift do you mean UITextField or input in html form?

Shift Over a year ago

The input field above the orange button which you have helped me out with. It seems to have a "required" statement or something that checks if the user interacted with the input? I'm new to HTML so I really appreciate your help on this.

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