How is this done?
This is a good question, and I actually don't think it can be done easily. (Some discussion on this)
If it is super duper important for you to have this functionality, you could hack it like so:
function singleClick(e) {
// do something, "this" will be the DOM element
}
function doubleClick(e) {
// do something, "this" will be the DOM element
}
$(selector).click(function(e) {
var that = this;
setTimeout(function() {
var dblclick = parseInt($(that).data('double'), 10);
if (dblclick > 0) {
$(that).data('double', dblclick-1);
} else {
singleClick.call(that, e);
}
}, 300);
}).dblclick(function(e) {
$(this).data('double', 2);
doubleClick.call(this, e);
});
And here is an example of it at work.
As pointed out in the comments, there is a plugin for this that does what I did above pretty much, but packages it up for you so you don't have to see the ugly: FixClick.