Cosmin Malutan, [:cosmin-malutan] Reporter
	Description • 10 years ago

While opining new tabs in Australis, they will be re-sized until scrollbutton-down get's displayed, afterwards they should be hidden.
With the new Gum branch they still get re-sized after scrollbutton-down get's displayed. If this is expected then we would have to update our mozmill-tests.

Steps:
1 Open http://mozqa.com/data/firefox/tabbedbrowsing/openinnewtab.html
2 Mouse middle-click on one of the links until scrollbutton-down get's displayed
3 Click one more time on a different one
Expected(Nightly/Aurora etc)
  -> The last opened is hidden and scrollbutton-down get's highlighted
Actual result
  -> The last open tab it's visible and all tabs get's re-sized(animated)

	Henrik Skupin [:whimboo][⌚️UTC+2]
	Comment 1 • 10 years ago

I think the problem we are facing here is that the scroll button is shown too early. When you compare the behavior between Aurora and the developer edition you can see that the width in the latter is way larger when the button appears. Opening more tabs, the width is reduced. Then when the tabs have the same width as in current Aurora, newly opened tabs are hidden and the button flashes.

	[SV Manager] Florin Mezei, QA (:FlorinMezei)
	Comment 2 • 10 years ago

Adding Kairo since this is on Gum.

	:Gijs (he/him)
	Comment 3 • 10 years ago

Matt, I imagine that because we're no longer doing weird overlapping things (or maybe we are?) maybe we need to adjust the min/max/ tab size and those prefs? I recall we did this for Australis, but I don't remember the details. Do you know?

	Brian Grinstead [:bgrins]
	Comment 4 • 10 years ago

Is it possible that the patch from Bug 1093820 (which includes a fix for @tabCurveHalfWidth@) would fix this?  See: https://bugzilla.mozilla.org/show_bug.cgi?id=1093820#c9

	Brian Grinstead [:bgrins]
	Comment 5 • 10 years ago

Cosmin, can you please confirm if this is fixed on the latest Gum builds?

	Cosmin Malutan, [:cosmin-malutan] Reporter
	Comment 6 • 10 years ago

It has been fixed in the last Gum tinderbox build.

Thank you guys!
https://ftp.mozilla.org/pub/mozilla.org/firefox/tinderbox-builds/gum-linux64/1415328252/

	Henrik Skupin [:whimboo][⌚️UTC+2]
	Comment 7 • 10 years ago

Which patch / bug fixed that? As long as we do not know that it's WFM.

	Cosmin Malutan, [:cosmin-malutan] Reporter
	Comment 8 • 10 years ago

@Whimboo, comment 4, it's bug 1093820, it's secure.

	Henrik Skupin [:whimboo][⌚️UTC+2]
	Comment 9 • 10 years ago

Nothing on bug 1093820 indicates that anything has been landed yet. Even not on the GUM branch. So if this is fixed for you in GUM tinderbox builds, it will not be that specific bug but another one.

	Cosmin Malutan, [:cosmin-malutan] Reporter
	Comment 10 • 10 years ago

I didn't had access to look in to bug 1093820, but from comment 4 and comment 5 I understood that a fix has been landed: 
"Is it possible that the patch from Bug 1093820 (which includes a fix for @tabCurveHalfWidth@) would fix this?"
"Cosmin, can you please confirm if this is fixed on the latest Gum builds?"

	Brian Grinstead [:bgrins]
	Comment 11 • 10 years ago

It was Bug 1094782, which had a reduced fix that was included in that.