Bug 54238

Summary: owner-events is not honoured on passive button grabs
Product: xorg Reporter: Peter Hutterer <peter.hutterer>
Component: Server/Input/CoreAssignee: Xorg Project Team <xorg-team>
Status: RESOLVED MOVED QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium CC: peter.hutterer
Version: git   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:

Description Peter Hutterer 2012-08-30 02:24:34 UTC 
A passive grab with owner-events false should report events only if selected by the event mask. the owner-events field is ignored when the event that caused the grab activation is sent to the client (code as of 1.13RC5 is in ActivatePassiveGrab).

Test case:
- window with ButtonPress event mask set
- passive grab on window with empty event mask
- a button press on the window

For owner-events true, we expect a ButtonPress event
For owner-events false, we do not expect a ButtonPress event

This is an old bug, reproduced on 1.13RC5, 1.10.6 (RHEL6.3 server) and the RHEL5 xorg-x11-server-Xorg-1.1.1-48.76.el5.

This may be protocol spec ambiguity. It is not clear if the button press event should always be delivered to a client, regardless of the grab event mask.
Comment 1 Bastien Dejean 2013-03-22 11:05:56 UTC 
The bug is still there in X.Org 1.14.0!
Comment 2 Peter Hutterer 2013-03-26 05:05:45 UTC 
Given that this bug has been there for so many years, changing this behaviour is likely to break clients.
Comment 3 GitLab Migration User 2018-12-17 17:26:05 UTC 
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/xorg/xserver/issues/563.

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