https://bugzilla.gnome.org/show_bug.cgi?id=770906
Bug ID: 770906
Summary: Wayland: Unmapping a toplevel from a menu/popup can
lead to a protocol error
Classification: Platform
Product: gtk+
Version: unspecified
OS: Linux
Status: NEW
Severity: normal
Priority: Normal
Component: Backend: Wayland
Assignee: [email protected]
Reporter: [email protected]
QA Contact: [email protected]
CC: [email protected], [email protected]
GNOME version: ---
Created attachment 334828
--> https://bugzilla.gnome.org/attachment.cgi?id=334828&action=edit
WAYLAND_DEBUG log
Description:
devassistant-gui uses a popup window to select the type of project, and when
selected unmaps the toplevel window to map a new one.
Problem is sometimes, this leads to a protocol error "destroyed popup not top
most popup" (WAYLAND_DEBUG logs attached)
I don't think this is the same as bug 768111 as I don't see more than popup
being created.
Looking at mutter code (and instrumenting the code, as there are two cases to
generate that same error "destroyed popup not top most popup" in mutter) show
that this coming from handle_popup_parent_destroyed() in mutter.
So I think what happens is the callback is hiding the toplevel before the popup
is unmapped, which causes this.
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