Bug 449947

Summary:	Single click to open files/folders does not work using MATE desktop
Product:	[Applications] dolphin	Reporter:	Axel Keller <Axel.Keller>
Component:	panels: folders	Assignee:	Dolphin Bug Assignee <dolphin-bugs-null>
Status:	RESOLVED UNMAINTAINED
Severity:	minor	CC:	kfm-devel, nicolas.fella
Priority:	NOR
Version:	20.04.2
Target Milestone:	---
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Axel Keller 2022-02-10 16:22:43 UTC

SUMMARY
***
Single click to open files/folders does not work using MATE desktop. Using KDE-Plasma desktop it works, if
the single click method is set via kde systemsettings (working area, behaviour). This setting is possible using both desktops.

***


STEPS TO REPRODUCE
1. Install MATE desktop environment with YaST2
2. Login with MATE desktop
3. run dolphin

OBSERVED RESULT


EXPECTED RESULT


SOFTWARE/OS VERSIONS
Linux:  Leap 15.3
Desktop: MATE



ADDITIONAL INFORMATION

Comment 1 Nicolas Fella 2022-02-10 16:44:37 UTC

Are you saying Mate has such an setting and you want Dolphin to follow it?
Or you want Dolphin on Mate to follow the setting from Plasma?

Comment 2 Axel Keller 2022-02-10 17:27:25 UTC

   Thank you for your quick response.

   MATE doesn't present such a setting (e.g. in MATE Tweak) but presents
   the kde systemsettings. So Dolphin should follow the settings from
   Plasma.



   Am 10.02.22 um 17:44 schrieb Nicolas Fella:

     https://bugs.kde.org/show_bug.cgi?id=449947          
     Nicolas Fella      <nicolas.fella@gmx.de> [1]      changed:
     
                What    |Removed                     |Added
     ----------------------------------------------------------------------------
                      CC|                            |     nicolas.fella@gmx.de [1]     
     --- Comment #1 from Nicolas Fella      <nicolas.fella@gmx.de> [1]      ---
     Are you saying Mate has such an setting and you want Dolphin to follow it?
     Or you want Dolphin on Mate to follow the setting from Plasma?


   

   1. mailto:nicolas.fella@gmx.de

Comment 3 Nicolas Fella 2022-02-11 00:46:11 UTC

Dolphin on Mate reading settings from another desktop that happens to be installed would be quite odd, and most Mate users don't have Plasma installed anyway.

The single/double click behavior in Dolphin is controlled by a flag in the Qt PlatformTheme. The platformtheme provided by Plasma reads the setting set by systemsettings. What happens on Mate depends on what platformtheme is used there

Comment 4 Axel Keller 2022-02-11 16:30:51 UTC

Thanks for hint by Nicolas Fella, problem could be solved:

1. Install qt5ct from openSUSE repository
2. Add to etc/environment:
          QT_QPA_PLATFORMTHEME=qt5ct
3. Set single click:
          Meu -> control center -> Qt5 settings -> User interface: activate entry with a single click