Is there any plan to add jQuery methods to retrieve and set the
coordinates of an element on the page? It seems like a good addition to
dimensions.js, perhaps. Here's what I currently use:
$.fn.x = function(n) {
var result = null;
this.each(function() {
var o = this;
if (n === undefined) {
var x = 0;
if (o.offsetParent) {
while (o.offsetParent) {
x += o.offsetLeft;
o = o.offsetParent;
}
}
if (result === null) {
result = x;
} else {
result = Math.min(result, x);
}
} else {
o.style.left = n + 'px';
}
});
return result;
};
$.fn.y = function(n) {
var result = null;
this.each(function() {
var o = this;
if (n === undefined) {
var y = 0;
if (o.offsetParent) {
while (o.offsetParent) {
y += o.offsetTop;
o = o.offsetParent;
}
}
if (result === null) {
result = y;
} else {
result = Math.min(result, y);
}
} else {
o.style.top = n + 'px';
}
});
return result;
};
If there are multiple elements matched, they will all get the same x- or
y-position. On retreival, they return the minimum position of all the
elements in the query result.
Perhaps it might be better to have a single method that returns a pair of
{x, y} values... though there's something elegant about being able to say
things like:
$('#obj1').x($('#obj2').x() + 20);
Dave
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