Keyboard shortcut not working

Question

I am using HandsOnTable jquery plugin, and I'm trying to handle a specific key combination (Alt+v) shortcut. But it is not working for some reason, here is my code and jsfiddle:

$(document).ready(function () {
var isCtrl = false;
var isShift = false;
var isAlt = false;
// action on key up
$(document).keyup(function (e) {
    if (e.which == 17) {
        isCtrl = false;
    }
    if (e.which == 16) {
        isShift = false;
    }
    if (e.which == 18) {
        isAlt = false;
    }
});
// action on key down
$(document).keydown(function (e) {
    if (e.which == 17) {
        isCtrl = true;
    }
    if (e.which == 16) {
        isShift = true;
    }
    if (e.which == 18) {
        isAlt = true;
    }
    if (e.which == 86 && isAlt) //alt+v
    {
        console.log("alt+v detected");
        e.preventDefault();
        e.stopImmediatePropagation();
        return false;
    }
});
});

Answer 1

I'm using chromium and it looks like all the keydown events do not fire. I found out there is a beforeKeyDown callback, which can be used to "modify keybindings". Using that seems to work:

$('#example').handsontable({
    data: data,
    minSpareRows: 1,
    colHeaders: true,
    contextMenu: true,
    beforeKeyDown: function (e) {
        if (e.altKey === true && e.which === 86) {
            console.log("alt-v");
            e.stopImmediatePropagation();
            e.preventDefault();
        }
    }
});

http://jsfiddle.net/JdzR3/