1218073 - Scroll+Cmd zooms even if scrolling gesture is finished at the time of Cmd key pressing

Status: RESOLVED FIXED

(Core :: Widget: Cocoa, defect, P2)

Description

[ojab]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:43.0) Gecko/20100101 Firefox/43.0
Build ID: 20151023004026

Steps to reproduce:

1. Two finger scroll with a trackpad
2. While the scroll is still occurring, push ctrl.
3. The page zooms instead of continuing to scroll.


Actual results:

PDF is zoomed


Expected results:

PDF should not be zoomed

Comment 1

[ojab]

There is bugs for linux https://bugzilla.mozilla.org/show_bug.cgi?id=649770 and windows https://bugzilla.mozilla.org/show_bug.cgi?id=1199737 citing the same issue, dunno if this bug should be a duplicate.

Comment 2

[ovidiu boca[:Ovidiu]]

I can reproduce the bug on FF Nightly 44.0a1 (2015-10-26)

Bugs that are related to this one but are on different OS. 

linux:  https://bugzilla.mozilla.org/show_bug.cgi?id=1199737

windows: https://bugzilla.mozilla.org/show_bug.cgi?id=649770

On Chrome this bug can't be reproduce.

Comment 3

[u279076]

(In reply to ovidiu boca from comment #2)
> 
> I can reproduce the bug on FF Nightly 44.0a1 (2015-10-26)

Do you have steps to reproduce? The steps in comment 0 are not sufficient to reproduce this locally.

Comment 4

[ovidiu boca[:Ovidiu]]

(In reply to Anthony Hughes, QA Mentor (:ashughes) from comment #3)
> (In reply to ovidiu boca from comment #2)
> > 
> > I can reproduce the bug on FF Nightly 44.0a1 (2015-10-26)
> 
> Do you have steps to reproduce? The steps in comment 0 are not sufficient to
> reproduce this locally.

Hi Anthony, 

You need to reproduce this on a laptop Mac OS X 10.11.
Steps to reproduce the bug:

1 Open Firefox
2 Enter to a page that have many information and pictures ex: 9gag.com
3 Scroll with a trackpad the web site.
4 While the scroll is still occurring, push cmd.
5 The page zooms instead of continuing to scroll.

Expected result: Page should not be zoomed

Actual results: Page is zoomed.

Comment 5

[u279076]

(In reply to ovidiu boca from comment #4)
> (In reply to Anthony Hughes, QA Mentor (:ashughes) from comment #3)
> > (In reply to ovidiu boca from comment #2)
> > > 
> > > I can reproduce the bug on FF Nightly 44.0a1 (2015-10-26)
> > 
> > Do you have steps to reproduce? The steps in comment 0 are not sufficient to
> > reproduce this locally.
> 
> Hi Anthony, 
> 
> You need to reproduce this on a laptop Mac OS X 10.11.
> Steps to reproduce the bug:
> 
> 1 Open Firefox
> 2 Enter to a page that have many information and pictures ex: 9gag.com
> 3 Scroll with a trackpad the web site.
> 4 While the scroll is still occurring, push cmd.
> 5 The page zooms instead of continuing to scroll.
> 
> Expected result: Page should not be zoomed
> 
> Actual results: Page is zoomed.

These steps don't work for me on my Macbook Pro (Retina, Late-2013) running Mac OS 10.11.1 Beta. Do you have any other info that will help me reproduce this?

Comment 6

[ovidiu boca[:Ovidiu]]

Hi Anthony,

If you can, please try to reproduce this steps on Chrome. And maybe this bugs: 1199737, 649770 can help you to reproduce the problem.

Comment 7

[André Reinald]

On FF 56.0 / Mac OS 10.13

I start a page scroll with the touchpad, then press the command key :

1. while fingers are still down on the touchpad and scrolling -> page zooms,
2. when fingers are lifted and scrolling occurs out of momentum -> page scroll continues.

As I understand, this bug states that page zooms in scenario 2.
Either I misunderstand the bug or I can't reproduce it.

Comment 8

[Stephen A Pohl [:spohl]]

Are you still able to reproduce this?

Comment 9

[ovidiu boca[:Ovidiu]]

hi Stephen,
I retested this on MacBook OS X 10.11 with FF Nightly 58.0a1(2017-10-15) and I have the same results like André:

1. while fingers are still down on the touchpad and scrolling -> page zooms,
2. when fingers are lifted and scrolling occurs out of momentum -> page scroll continues.

Comment 10

[André Reinald]

I understand this is the expected behavior.
This bug has likely been fixed by a side effect of some other patch.