423791 - XUL panel.moveTo() not working

Status: UNCONFIRMED

(Core :: XUL, defect)

Description

[Timothy Humphrey]

User-Agent:       Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Maxthon; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.04506.648)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9b4) Gecko/2008030714 Firefox/3.0b4

With XUL, if I open a panel and then immediately move it with the moveTo() method nothing happens, it stays at the position I opened it at.

I've attached a sample extension that demonstrates the issue. Once installed press the 'a' key to make a panel appear at the upper left corner of the screen. It actually should immediately move to point 100, 200.

Reproducible: Always

Steps to Reproduce:
1. Open a panel.
2. Call the moveTo() method to move it somewhere else

Actual Results:  
The panel doesn't move.

Expected Results:  
The panel to move.

Comment 1

[Timothy Humphrey]

Attachment: Test extension demonstrating issue

Comment 2

[Neil Deakin]

You should wait until the popup has opened before moving it.

Why aren't you just passing the coordinates to openPopupAtScreen?

Comment 3

[Mike Shaver (:shaver -- probably not reading bugmail closely)]

Not blocking -- workaround in bug, no rationale given for nomination.

Comment 4

[Timothy Humphrey]

I can't determine the coordinates of the popup until it has opened. It's contents will be dynamic and I want to vary its position on-screen based on its size. In Firefox 2 I could open a popup off-screen, determine its size and do calculations based on that, and then call showPopup() again to basically move it. How can I do something similar in Firefox 3?

Since Firefox 3 forces all popups to appear on-screen there's a nasty visual jarring when I move it to its final position.

Comment 5

[Jose Fandos]

Mike, could you clarify what the workaround is in answer to comment #4?

Comment 6

[Joseph]

Mike, could you clarify what the workaround is in answer to comment #4?