Hack for `mouseup` outside of window in IE 7/8

Question

I understand the event mouseup for the window just isn't there for IE 7 and 8. I was wondering if anybody has found a work-around for this or if that is even possible.

I am currently working on a project where the user can click, drag to draw a line, and if the user drags outside of the window and lets up on the mouse, the drawing transaction will be cancelled.

Answer 1

Your difficulty sounds like it would be more from the window losing the scope of the event.

Are you using jQuery? With jQuery you can also tag onto the mousemove event and use the "which" attribute to detect if the button is pressed. This even fires when you come back into the window. But it DOES NOT fire when you are outside of the window.

Alternatively you can use $(window).mouseleave to detect when it leaves the window. However once it has left the window you cannot detect further mouse events (that would be a horrible flaw if they could detect when you right clicked on your desktop etc).

So you are somewhat limited by the browser security implementations in ALL browsers and won't be able to bypass that... but you can add some work around events to provide a "similar" experience.