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From: "Nicolas Goy" <nicolas AT goyman DOT com>
To: cygwin AT cygwin DOT com
Subject: XWin focus in multiwindow mode
Date: Fri, 14 Apr 2017 11:23:18 +0000
Message-Id: <em7c369e65-ca44-43bd-9f42-5c6ba83cf542@yoda>
Reply-To: "Nicolas Goy" <nicolas AT goyman DOT com>
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I noticed that a few apps don't manage focus properly when running under 
XWin.

Summary:
Given a focused X11 app, focusing a native Windows window, the focus is 
not lost in the X11 window.

Steps to reproduce (with terminator):
- Start terminator under XWin with multiwindow window manager
- Focus a Windows window by clicking on it

Expected behavior:
- Focus should be lost from the terminator window

Actual behavior:
- The terminator window remains focused. (by focused I mean that the 
caret remains plain, and the titlebar remains in the focused color, the 
windows properly lose keyboard focus and other OS level focus)
- Also, if I open a menu (in android studio for example), and click a 
Windows window, the menu remains open.

Notes:
If I click another X11 windows, the focus is properly lost. It only 
happens if I pass the focus from an X11 window to a native Windows 
window.

I tested a few X11 app, and not all have this behavior:

Working app:
- xterm
- git-cola
- st
- konsole
- chromium

Apps showing the bug:
- android-studio
- terminator
- gnome-terminal
- termite


Version:

			$ XWin --version 		
			Welcome to the XWin X Server 		
			Vendor: The Cygwin/X Project 		
			Release: 1.19.2.0 		
			OS: CYGWIN_NT-10.0 yoda 2.7.0(0.306/5/3) 2017-02-12 13:18 x86_64 		
			OS: Windows 10  [Windows NT 10.0 build 15063] (Win64) 		
			Package: version 1.19.2-1 built 2017-03-09 		

Started with.
			XWin -multiwindow -clipboard -silent-dup-error -listen tcp 		

--
Nicolas Goy
Programmer


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