https://bugs.kde.org/show_bug.cgi?id=485685
Bug ID: 485685
Summary: Firefox starts a drag-and-drop operation when anything
is in the clipboard and the application window is
activated
Classification: Plasma
Product: plasmashell
Version: 5.27.11
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Clipboard
Assignee: plasma-b...@kde.org
Reporter: r...@runesverden.dk
Target Milestone: 1.0
Firefox (and likely other gtk apps) starts a drag-and-drop operation when
anything is in the clipboard and the application window is activated. (I.e.
STEPS TO REPRODUCE
1. Copy some text from a terminal window or any other app than Firefox.
2. Switch to the Firefox window while on a webpage that reacts to drag events,
e.g. messenger.com.
OBSERVED RESULT
The webpage will now appear to have started a drag-and-drop operation and
display "drop your files here" or similar.
EXPECTED RESULT
Activating a window should not cause a drag-and-drop operation. Does not happen
when the clipboard is empty.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma:
KDE Plasma Version: 5.27.11
KDE Frameworks Version: 5.115.0
Qt Version: 5.15.12
Fedora 39, Wayland
ADDITIONAL INFORMATION
According to https://gitlab.gnome.org/GNOME/gtk/-/issues/5519 the issue is
caused by:
The problem is that plasma(klipper(ksystemclipboard)) is sending "selection"
and "primary selection" every time a window is activated, which gtk detects as
drag move events.
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