824290 - Arrow panels anchored too close to the edge of the screen have their anchor points flipped.

Status: RESOLVED FIXED

(Core :: XUL, defect)

Description

[Mike Conley (:mconley) (:⚙️)]

STR (using a recent Nightly on any platform)

1) Customize the Nightly navigation bar, and move the Downloads button to the right-most position.
2) Maximize the window. The Downloads button should now be very close to the edge of the screen.
3) Click on the Downloads button to open the panel.

What happens?

The panel opens, but the arrow is on the *left* side of the panel, far away from the button.

What's expected?

The panel arrow is supposed to be anchored on the button.

Comment 1

[Mike Conley (:mconley) (:⚙️)]

Hm - I had mentioned that this is true on "any platform", but on OSX, there's really no such thing as a maximized window.

So let's take OSX out of the group. I can easily reproduce it on Windows and Ubuntu.

Comment 2

[Mike Conley (:mconley) (:⚙️)]

Attachment: Screenshot of problem on Windows 7

Here's the screenshot that the original bug reporter showed me.

Comment 3

[Mike Conley (:mconley) (:⚙️)]

(In reply to Mike Conley (:mconley) from comment #1)
> Hm - I had mentioned that this is true on "any platform", but on OSX,
> there's really no such thing as a maximized window.
> 
> So let's take OSX out of the group. I can easily reproduce it on Windows and
> Ubuntu.

Nevermind, just reproduced on OSX without much trouble.

Comment 4

[Mike Conley (:mconley) (:⚙️)]

Bug 798226 and bug 821283 are currently my top suspects.

Comment 5

[Mike Conley (:mconley) (:⚙️)]

Bisection shows that attachment 691799 [details] [diff] [review] from bug 798226 is the culprit.

Comment 7

[Neil Deakin]

Fixed by backing the patch out.

https://hg.mozilla.org/integration/mozilla-inbound/rev/c454966ef45c