Subscribing to events with JS named functions/arrow functions

[nikovacs]

Hi all,

I am pretty new to ClearScript and could use some advice from the community.

In my case, I have a C# event that I would like to be able to subscribe and unsubscribe to from JS. In this case specifically, it has to do with a GUI. So I will use a Button object as the example.

Context: element is the btn object itself and is always supplied as an argument when onPressed is triggered.

let btn = new Button();
// 3 possibilities

// 1
btn.onPressed = (element) => {/*logic here*/};
//2
btn.onPressed = function (element) {/*logic here*/};
// 3
function whenPressed(element) {
    /* logic here */
}
btn.onPressed = whenPressed;

Honestly, I am just not sure what to do on the C# side...

I got it somewhat working by creating a method in my C# class

public void addOnPressedHandler(string scriptName, string func)
{
    this.onPressed = element => {
        var engine = // get the engine from the name of the script
        engine.Trigger(func, element);
    }
}

and I could call it from JS like this

function onButtonPressed(element) {
    /* logic here */
}

btn.addOnPressedHandler('nameofscript', 'onButtonPressed');

The downside of this, though, is that I would always have to know the name of the script and pass it in. I think I could bear with this implementation if I was able to implicitly provide the value of the script, but I do not think that is possible as far as I know.

If possible, I would greatly prefer the first implementation, but I could get by with the second if I did not have to provide the name of the script.

Perhaps my whole approach is incorrect, in which case I would like to be corrected. I would be glad to provide more context if needed.

Thank you.

[nikovacs]

I ultimately found the answer at #240. I just did not know what I was looking for. My question has been answered.