SUMMARY I downloaded an empty log file named stdio (no extension). When I double-click the file in Dolphin a dialog appears "Choose an application to open 'stdio'. But there's no way to choose an application with the keyboard. I can't seem to tab into the list of application icon+names. STEPS TO REPRODUCE 0. (These steps assume you haven't set an application to open empty document files.) 1. Create an empty file, save it as "test" 2. In Dolphin navigate to this file and double-click it. 3. The "Choose Application — Portal" window that appears, try to use the keyboard to choose an application to open "test" from the list. OBSERVED RESULT You can't tab into the list of applications, so you can't choose one. EXPECTED RESULT The usual keyboard navigation through a list of name+icon sets. SOFTWARE/OS VERSIONS Linux/KDE Plasma: KDE Plasma Version: 5.27.2 KDE Frameworks Version: 5.103.0 Qt Version: 5.15.8 on Wayland ADDITIONAL INFORMATION I can't figure out how to bring up the Gnome equivalent app chooser to see if it has the same problem. As a workaround, if you type enough in the filter field to filter the list of applications down to one, it gets a selection rectangle and you can press [Enter] to launch it.
You can use the arrow keys to navigate within the view, and use the down arrow key to move focus into the view if focus is currently in the search field. It could stand to be improved though. We may want to re-use the navigation workflow that Kickoff has.