helpers/killer: Show busy indicator while terminating process

Kai Uwe Broulikrequested to merge
work/kbroulik/killer-helper-dontwait into master

Rather than freeze the UI, show a busy indicator. The dialog is kept visible until the process is complete. It also sets a parent window on the KAuth job, now that there is one.

This unfortunately means reimplementing the KMessageDialog but it's done in a UI file and only stuff we need (icon, label, details) is implemented, so the helper code itself isn't much different.

cc @sitter

Edited by Kai Uwe Broulik

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