Hi,
I ran across a weird bug in MochiKit.Style.getElementPosition causing
FF to throw evil C++ exceptions into the console:
http://trac.mochikit.com/ticket/332
Debugging the MochiKit code I ended up looking at the following piece
of black magic:
getElementPosition: function (elem, /* optional */relativeTo) {
var self = MochiKit.Style;
var dom = MochiKit.DOM;
elem = dom.getElement(elem);
if (!elem ||
(!(elem.x && elem.y) &&
(!elem.parentNode === null ||
self.getStyle(elem, 'display') == 'none'))) {
return undefined;
}
Question: What does the if-statement really do? And what was the real intention?
It seems the getStyle() function is called even though I send in a {
x: 0, y: 0 } object. I guess that is not the real intention.
Especially I like the "!elem.parentNode === null" check. What does
that even mean??? Weird that the previous test cases haven't caught
anything here...
Cheers,
/Per
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