1231162 - cursor is "jumping around" when typing into Facebook status update and comment fields

Status: RESOLVED DUPLICATE of bug 1235632

(Firefox for Android Graveyard :: Keyboards and IME, defect)

Description

[Hallvord R. M. Steen [:hallvors]]

Attachment: Test case / demo

When you type into status updates and/or comment fields on Facebook using Nightly on Android, the cursor behaves erratically in some situations. If you try to go back and correct an earlier error, the cursor doesn't always stay where you placed it once you start typing. Even more infuriating: if you've typed something elsewhere and move cursor back to the end of the text, then start typing, sometimes the cursor will jump back to where you previously were and it's apparently impossible to get it to stay at the end.

This is probably a follow-up to the fix we did for bug 549674

Fun fact: if there is a Japanese character *somewhere* in the input, it stops misbehaving :)

Comment 1

[Richard Newman [:rnewman]]

Which keyboard are you using, and on which device, hallvors?

Comment 2

[Hallvord R. M. Steen [:hallvors]]

I'm seeing this on a Moto X phone, using the normal built-in on-screen keyboards for Norwegian and English and Google Japanese Input for Japanese.

Comment 3

[Kevin Brosnan [Ex-Mozilla]]

Ioana would your team check if this a regression?

Comment 4

[Teodora Vermesan (:TeoVermesan)]

Using a Nexus 6 (Android 6.0) using English (US) - Google Keyboard, I can reproduce the issue:
on all branches. Note that "Show correction suggestions" is enabled in Settings.

-Place cursor before the word "World" 
=>the cursor jumps to the end
-Touch after the word "World" to attempt to make sure the cursor will stay there and type a backspace
=>cursor jumps back to before "World" and the space is deleted


I cannot reproduce the issue with "Show correction suggestions" disabled.

Comment 5

[(inactive) Jim Chen [:jchen] [:darchons]]

I think this is the same as the "touch caret being wonky under APZ" bug

Comment 6

[Mark Capella [:capella]]

(bug 1235632) ... does sound like a dup ... for ex there, see: [0]

[0] https://www.dropbox.com/s/oib80kcgmi9g5fc/bug_1235632_cursorJump.mp4?dl=0