jQuery Capture Multiple Key Press Combinations

You may have read a previous post on how to capture a single key press using jQuery. In this example you can capture multiple key presses in combinations.

The array (arrShortCut) defines the following:

1. a name (for reference only)
2. a keypad code
3. a function to execute in the variable iShortCutControlKey

if the control key activates the state” to keyup if the control key “off state”, if verified a key keydown a “no control” to “active status” look in the array if there is a preset for that key, if the function call “execShortCut” that … executes the function;

//to test use CTRL + Z = alert (2)

var arrShortCut = [{ name: 'test1', key: 15, fx: 'alert(1);' }, { name: 'test2', key: 90, fx: 'alert(2);'}];

var iShortCutControlKey = 17; // CTRL;
var bIsControlKeyActived = false;

$(document).keyup(function(e) {
    if (e.which == iShortCutControlKey) bIsControlKeyActived = false;
}).keydown(function(e) {
    if (e.which == iShortCutControlKey) bIsControlKeyActived = true;
    if (bIsControlKeyActived == true) {
        jQuery.each(arrShortCut, function(i) {
            if (arrShortCut[i].key == e.which) {
                execShortCut(arrShortCut[i].fx);
                return;
            }
        });
    }
});

function execShortCut(fx) {
    eval(fx);
}