Created attachment 128504 [details] test case SUMMARY I change Layout.preferredWidth of the applet dynamically at a given time interval but it apparently can't be seen when run in plasmoidviewer. Size changes can bee seen properly though, if the applet is docked in desktop's task bar. STEPS TO REPRODUCE 1. download and unpack my test case 2. run install-and-run-plasmoid.sh 3. plasmoidviewer should appear and org.kde.tutorial should be installed 4. add org.kde.tutorial applet to your desktop taskbar OBSERVED RESULT See attached video. EXPECTED RESULT The applet in plasmoidviewer should resize itself the same way as it resizes itself in the taskbar. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Fedora 32 KDE Plasma Version: 5.18.3 KDE Frameworks Version: 5.68 Qt Version: 5.13.2 ADDITIONAL INFORMATION 1) I read at https://zren.github.io/kde/docs/widget/ how to emulate in plasmoidviewer, an applet in a taskbar. 2) I start my plasmoid by plasmoidviewer --formfactor horizontal --location bottom --applet org.kde.tutorial
Created attachment 128505 [details] Screencast of the issue
There is a workaround for this issue. One needs to insert "main.parent.parent.width = widgetWidth" in the timer's body in order to get a dynamically resizeable applet in plasmoidviewer.