Description: Allow hiding windows using the wmctrl utility
 Handle changes of the NET_WM_STATE_HIDDEN atom in the
 clientUpdateNetState function
Author: pnd23@telenet.be
Origin: other
Forwarded: no
Last-Update: 2019-05-03
---
This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
Index: xfwm4-4.12.5/src/netwm.c
===================================================================
--- xfwm4-4.12.5.orig/src/netwm.c	2018-07-27 22:34:41.000000000 +0200
+++ xfwm4-4.12.5/src/netwm.c	2019-05-02 17:28:57.775679000 +0200
@@ -337,6 +337,36 @@
     second = ev->data.l[2];
     mode = 0;
 
+    if ((first  == display_info->atoms[NET_WM_STATE_HIDDEN]) ||
+        (second == display_info->atoms[NET_WM_STATE_HIDDEN]))
+    {
+        if ((action == NET_WM_STATE_ADD) && !FLAG_TEST (c->flags, CLIENT_FLAG_ICONIFIED))
+        {
+            if (CLIENT_CAN_HIDE_WINDOW (c))
+            {
+                clientWithdraw (c, c->win_workspace, TRUE);
+            }
+        }
+        else if ((action == NET_WM_STATE_REMOVE) && FLAG_TEST (c->flags, CLIENT_FLAG_ICONIFIED))
+        {
+            clientShow (c, TRUE);
+        }
+        else if (action == NET_WM_STATE_TOGGLE)
+        {
+            if (FLAG_TEST (c->flags, CLIENT_FLAG_ICONIFIED))
+            {
+                clientShow (c, TRUE);
+            }
+            else
+            {
+                if (CLIENT_CAN_HIDE_WINDOW (c))
+                {
+                    clientWithdraw (c, c->win_workspace, TRUE);
+                }
+            }
+        }
+    }
+
     if ((first  == display_info->atoms[NET_WM_STATE_SHADED]) ||
         (second == display_info->atoms[NET_WM_STATE_SHADED]))
     {