From 09d275d7f362c1e1623832e047f5016f89c10976 Mon Sep 17 00:00:00 2001
From: Colomban Wendling <cwendling@hypra.fr>
Date: Tue, 18 Dec 2018 18:00:44 +0100
Subject: [PATCH] Fix missing Firefox's frame in certain cases

When Firefox brings itself back from being minimized, it forcefully
maps itself, and we failed to reparent it.  Fix this by reparenting any
managed windows that lacks a frame, even if we didn't ask for the map
ourselves.

diff --git a/src/event.cpp b/src/event.cpp
index 9799a192b..1e9dd0fd1 100644
--- a/src/event.cpp
+++ b/src/event.cpp
@@ -1496,16 +1496,16 @@ CompScreenImpl::_handleEvent (XEvent *event)
 	if (w)
 	{
 	    if (w->priv->pendingMaps)
+		w->priv->managed = true;
+
+	    if (w->priv->managed && !w->priv->serverFrame)
 	    {
 		/* The only case where this happens
 		 * is where the window unmaps itself
 		 * but doesn't get destroyed so when
 		 * it re-maps we need to reparent it */
 
-		if (!w->priv->serverFrame)
-		    w->priv->reparent ();
-
-		w->priv->managed = true;
+		w->priv->reparent ();
 	    }
 
 	    /* been shaded */