[Project_owners] How do I detect frames from overlay code?
paul at roub.net
Wed May 18 16:40:32 EDT 2005
Paul Roub wrote:
> Trying to detect whether a given page is framed or not -- this is in
> overlay code, triggering on a dom-content-available event. Checking
> window.parent, window._content.parent (with or without wrappers) always
> returns an apparent top-level page (probably the frameset page),
> regardless of which document is passed in as the original target.
Answering my own question, at least in this particular case. The
original-event target passed in along with the event is the framed
document. If that's not equal to the top-level document
(window._content.document), we're in a frame. Again, this is for a
So I added:
var framed = aEvent.originalTarget &&
window._content && window._content.document &&
(window._content.document != aEvent.originalTarget);
Yeah, I know I'm playing it very cautiously, but DOMContentLoaded gets
called for all manner of windows.
And in my handler,
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