Bug 191114

Summary:	wrong window-state-event produced when in minimized + hidden state
Product:	[Plasma] kwin	Reporter:	Damanjit Singh <dsingh>
Component:	compatibility	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED INTENTIONAL
Severity:	normal	CC:	finex, kde
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Attachments:	sample gtk app Source code for the attached sample app.

Description Damanjit Singh 2009-04-30 08:27:00 UTC

Version:            (using KDE 4.1.3)
Compiler:          gcc 4.3.2 
OS:                Linux
Installed from:    SuSE RPMs

Follow these steps on any window (in KDE env with desktop effects ON) - 
1. Minimize the window
2. Hide the window (gtk_widget_hide)
3. Show the window (gtk_widget_show)

Observe the window-state-events produced.

For the step 3 we get 3 state change events (when only one was expected)
we get - 
state change from 3 to 2              // This is correct and expected
then, state change from 2 to 0        // This was not expected (wrong)
and gain, state change from 0 to 2    // This was not expected (wrong)

Comment 1 Damanjit Singh 2009-04-30 08:33:20 UTC

Created attachment 33233 [details]
sample gtk app

Sample gtk app to demostrate the bug. 
1. Run the app - (will show two windows - " Hello" and "World")
2. Minimize the "World" window
3. click hide button on the "Hello" window
4. click show button on the "World" window
5. Observe the state change events Produced (on console)

Comment 2 Damanjit Singh 2009-04-30 08:34:38 UTC

Created attachment 33234 [details]
Source code for the attached sample app.

Source code for the attached sample app.

Comment 3 FiNeX 2009-04-30 14:10:15 UTC

Could this report be moved to kdelibs or kwin product?

Comment 4 Thomas Lübking 2012-04-11 22:12:13 UTC

Sorry for the late reply.

No idea why this is set "HI" but it's a tricky one.

The reason is that setupCompositing() in manage() is called before the desktop (and activity) is assigned.
As a result updateVisibility() will call internalKeep().

@Damanjit
Why is this an issue?

Comment 5 Justin Zobel 2021-03-10 00:12:43 UTC

Thank you for the bug report.

As this report hasn't seen any changes in 5 years or more, we ask if you can please confirm that the issue still persists.

If this bug is no longer persisting or relevant please change the status to resolved.