Bug 362393

Summary:	Middle and right click also trigger selection in kdialog --combobox
Product:	[Applications] kdialog	Reporter:	Antony Lee <anntzer.lee>
Component:	general	Assignee:	Brad Hards <bradh>
Status:	RESOLVED UPSTREAM
Severity:	normal	CC:	cfeck
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Antony Lee 2016-04-28 06:10:42 UTC

Middle or right-clicking on a an entry in kdialog --combobox also selects that element, which is rather unexpected.

Reproducible: Always

Steps to Reproduce:
Run
$ kdialog --combobox foo bar
open the combobox and right click on an item.

Actual Results:  
The item is selected.

Expected Results:  
The item is not selected.

The same issue happens when running a PyQt5 GUI (via QCombobox) on KDE.  This makes providing a context menu upon right-clicking on an entry a bit hazardous, as right-clicking on an entry with no associated menu will select it instead.

Comment 1 Christoph Feck 2016-05-05 00:32:25 UTC

Qt comboboxes work this way. If you want it fixed there, please report this issue to the bugtracker of the Qt Project at https://bugreports.qt.io/

For a workaround, see e.g. http://stackoverflow.com/questions/17848119/how-to-let-qcombobox-have-context-menu

Comment 2 Antony Lee 2016-05-05 02:18:06 UTC

This is not true, right-clicking on an item of a Qt combo-box does not select it on Windows (tested by myself).
Reopening the issue.

Comment 3 Christoph Feck 2016-05-05 02:23:17 UTC

But it does on Linux with any Qt application? Here it does. I have no Windows to test.

Comment 4 Christoph Feck 2016-05-05 02:50:11 UTC

I just checked qcombobox.cpp from 5.7 branch, and it does not check which button was used to select the items. See line 709ff at https://code.woboq.org/qt5/qtbase/src/widgets/widgets/qcombobox.cpp.html