Connecting a click event on a widget to a function.

[JoeZiminski]

Is it possible to connect a function to a click event on a specific widget? In particular, I am interested in linking a function execution to double-clicking on a particular Input widget. As far as I can see, the _on_click() method of Input does not have any kind of emit signal and the generic on_click method does not need to hold information about the clicked widget. I presume it is possible based on the x,y position of the click and widget but was wondering if there is an easier way.

Apologies if this is an obvious question, I could not find an answer after a reasonably thorough search of docs / issues but I may be looking for the wrong thing!