1870310 - Sometimes longpress to select a word doesn't work, mostly when using a thumb

Status: NEW

(Core :: Panning and Zooming, defect, P3)

Description

[Julien Wajsberg [:julienw]]

Attachment: video with the issue

When I use my thumb to select words in an article on lemonde.fr (which is the finger I use most of the time), I have a hard time longpressing on a specific word to copy it.

It's worth mentioning this also happens also in Chrome.

With the video you'll see that everytime this doesn't work, the page scrolls a bit. I believe the scroll gesture is detected instead.

Comment 1

[Julien Wajsberg [:julienw]]

Attachment: another video with the issue

Comment 2

[Jonathan Almeida [:jonalmeida]]

(In reply to Julien Wajsberg [:julienw] from comment #0)

With the video you'll see that everytime this doesn't work, the page scrolls a bit. I believe the scroll gesture is detected instead.

I believe you're correct as well. Sending this to APZ because it's probably something they might know if we need to alter our heuristics for detecting scroll and tap gestures.

Comment 3

[BugBot [:suhaib / :marco/ :calixte]]

The severity field is not set for this bug.
:botond, could you have a look please?

For more information, please visit BugBot documentation.

Comment 4

[Dan Robertson (:dlrobertson)]

What is the value of apz.touch_move_tolerance StaticPrefList.yaml:787-790? I wonder if the touch-move tolerance is too low.

Comment 5

[Julien Wajsberg [:julienw]]

I have 0.03.
How come it's different than the default? :-)

Comment 6

[Dan Robertson (:dlrobertson)]

Aha! mobile/android/app/geckoview-prefs.js:67 sets the value to 0.03. That seems really small.