Public bug reported:
Steps to reproduce, under Ubuntu 18.04:
1. launch a Caja window
2. type a few characters in it, so that it starts doing typeahead find in this
folder, in a textbox in the bottom right corner of the window
3. right-click in that textbox and say "Insert Emoji" in the popup menu that
appears (under Ubuntu MATE 18.04 at least)
The system... does not like this. The pointer seems to bizarrely get
locked into the Caja window, where it draws endless selection rectangles
just when moving; alt-tab doesn't work; it seems impossible to focus
another application. Fortunately, ctrl-alt-t to launch a Terminal works,
in which one can killall caja.
I suspect this may be because the caja typeahead popup textbox is
ephemeral and disappears when unfocused, and popping up the emoji
chooser overlay defocuses the textbox, causing the textbox to disappear,
the emoji panel to now not have any widget to point at, and everything
to get confused.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: caja 1.20.2-4ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CurrentDesktop: MATE
Date: Wed May 9 15:04:53 2018
InstallationDate: Installed on 2014-04-07 (1493 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
SourcePackage: caja
UpgradeStatus: Upgraded to bionic on 2018-04-28 (11 days ago)
** Affects: ubuntu-mate
Importance: Undecided
Status: New
** Affects: caja (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic third-party-packages
** Also affects: ubuntu-mate
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1770170
Title:
"Insert Emoji" in typeahead-find window causes problems in Ubuntu MATE
18.04
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