I am trying to set the z-index on draggable elements using jQuery. You can see what I am talking about and what I have so far here:
http://jsfiddle.net/sushik/LQ4JT/1/
It is very primitive and there are problems with it. Any ideas on how I would make the last clicked element have the highest z-index and rather than resetting all of the rest to a base z-index, have them step, so the 2nd to last clicked has the second highest z-index, etc..
Another problem I am having with it is that it only works on a full click event but the draggable functionality works by clicking and holding down. How could I have the class applied on that initial click down and not wait for the event of releasing the click?
All you need to do is use draggable({stack: "div"})
Now when you drag a div it will automatically come to the top.
I have updated your CSS and Javascript. Don't use "!important" in css unless you are that much desperate.
$(document).ready(function() {
var a = 3;
$('#box1,#box2,#box3,#box4').draggable({
start: function(event, ui) { $(this).css("z-index", a++); }
});
$('#dragZone div').click(function() {
$(this).addClass('top').removeClass('bottom');
$(this).siblings().removeClass('top').addClass('bottom');
$(this).css("z-index", a++);
});
});
Though this answer works it has the limitation of max number of 2^31−1 in javascript. refer What is JavaScript's highest integer value that a Number can go to without losing precision? for more info.
The easiest way I found to solve this problem was to use the appendTo and zIndex options.
$('#box1,#box2,#box3,#box4').draggable({
appendTo: "body",
zIndex: 10000
});