How to register Mouse Events for a Button

Hi there,

I'm trying to register callbacks for mouse events for a UIElements.Button. For example:

Code (CSharp):

1. Button button = new Button();
2. button.RegisterCallback<MouseDownEvent>(e=>Debug.Log("button pressed"));

This is not working - I'm assuming because this normal callback behavior is somehow overridden for Buttons via the Clickable Manipulator. In the examples you have to assign your callback via the constructor - which is fine and looks handy.

Code (CSharp):

1. var button = new Button(()=>Debug.Log("button clicked")) { text = "MY BUTTON" };

But how to assign a callback for a button created via uxml? For example:

var button= uxml.Q<Button>("myButton");

I tried assigning a new Clickable in different ways but also without success.

Thanks in advance.

Best,
Felix

 

Hey @fxlange I too found this troublesome - so I started writing a library to help me out while writing UIElement code. You might be interested in it - here is how i did it - https://github.com/rocktavious/UIEX#redowlmousemanipulator

 

thanks a lot @uDamian - that works.

 

Hey, how to also invoke this clicked event? Trying to setup gamepad navigation for it.

Wait nevermind, i figured it out eventually. Using reflection:

Code (CSharp):

1.  
2.                 Clickable clickable = button.clickable;
3.                 MouseDownEvent mouseDownEvent = MouseDownEvent.GetPooled();
4.                 //clickable.Invoke();
5.                 MethodInfo dynMethod = clickable.GetType().GetMethod("Invoke",
6.                 BindingFlags.NonPublic | BindingFlags.Instance);
7.                 dynMethod.Invoke(clickable, new object[] { mouseDownEvent });
8.                 mouseDownEvent.Dispose();
9.