Ace: How to bind scroll event ?

[hojas]

How to bind scroll event to the editor ?

editor.on('scroll', function() {
    //...
}) ?

or

editor.getSession().on('scroll', function() {
    //...
}) ?

[nightwing]

editor.session.on("changeScrollTop", function() {})
editor.session.on("changeScrollLeft", function() {})

[hojas]

thx!

[rocketinventor]

@nightwing is there a way to get current, first _and_ last line number?

[prashant-saxena]

editor.session.on("changeScrollTop", function() {})
editor.session.on("changeScrollLeft", function() {})

Once event is binded then how to unbind it again. I have tried

editor.session.off();
editor.session.off('scroll');
editor.session.off('changeScrollTop');

[nightwing]

var listener = function() {}
session.on("eventName", listener)
session.off("eventName", listener)

[prashant-saxena]

var listener = function() {}
session.on("eventName", listener)
session.off("eventName", listener)

Actually I have tried using an empty function but it doesn't work.

session.off('changeScrollTop', function() {
});
session.off('changeScrollLeft', function() {
});

[nightwing]

you need to pass the same function to on and off methods