[gtk/wip/carlosg/no-x11-core-events: 3/5] gdk/x11: Drop GDK_CORE_DEVICE_EVENTS environment variable

[Carlos Garnacho <carlosg src gnome org>]

commit c4446d36deafa431d53bfa4240e701cac2febaca
Author: Carlos Garnacho <carlosg gnome org>
Date:   Wed May 15 00:08:37 2019 +0200

    gdk/x11: Drop GDK_CORE_DEVICE_EVENTS environment variable
    
    Support for core events will be discontinued, so this doesn't make sense
    anymore.

 docs/reference/gtk/x11.sgml    |  9 ---------
 gdk/x11/gdkdevicemanager-x11.c | 43 ++++++++++++++++++++----------------------
 2 files changed, 20 insertions(+), 32 deletions(-)
---
diff --git a/docs/reference/gtk/x11.sgml b/docs/reference/gtk/x11.sgml
index 0a0522e068..4947beb1bf 100644
--- a/docs/reference/gtk/x11.sgml
+++ b/docs/reference/gtk/x11.sgml
@@ -65,15 +65,6 @@ The X11 GDK backend can be influenced with some additional environment variables
   </para>
 </formalpara>
 
-<formalpara>
-  <title><envar>GDK_CORE_DEVICE_EVENTS</envar></title>
-
-  <para>
-    If set, GDK makes does not use the XInput extension, and only reacts
-    to core X input events.
-  </para>
-</formalpara>
-
 <formalpara>
   <title><envar>GDK_SCALE</envar></title>
 
diff --git a/gdk/x11/gdkdevicemanager-x11.c b/gdk/x11/gdkdevicemanager-x11.c
index 7fec227aef..9a5312be23 100644
--- a/gdk/x11/gdkdevicemanager-x11.c
+++ b/gdk/x11/gdkdevicemanager-x11.c
@@ -33,36 +33,33 @@
 GdkX11DeviceManagerCore *
 _gdk_x11_device_manager_new (GdkDisplay *display)
 {
-  if (!g_getenv ("GDK_CORE_DEVICE_EVENTS"))
-    {
-      int opcode, firstevent, firsterror;
-      Display *xdisplay;
+  int opcode, firstevent, firsterror;
+  Display *xdisplay;
 
-      xdisplay = GDK_DISPLAY_XDISPLAY (display);
+  xdisplay = GDK_DISPLAY_XDISPLAY (display);
 
-      if (XQueryExtension (xdisplay, "XInputExtension",
-                           &opcode, &firstevent, &firsterror))
-        {
-          int major, minor;
+  if (XQueryExtension (xdisplay, "XInputExtension",
+                       &opcode, &firstevent, &firsterror))
+    {
+      int major, minor;
 
-          major = 2;
-         minor = 3;
+      major = 2;
+      minor = 3;
 
-          if (XIQueryVersion (xdisplay, &major, &minor) != BadRequest)
-            {
-              GdkX11DeviceManagerXI2 *device_manager_xi2;
+      if (XIQueryVersion (xdisplay, &major, &minor) != BadRequest)
+        {
+          GdkX11DeviceManagerXI2 *device_manager_xi2;
 
-              GDK_DISPLAY_NOTE (display, INPUT, g_message ("Creating XI2 device manager"));
+          GDK_DISPLAY_NOTE (display, INPUT, g_message ("Creating XI2 device manager"));
 
-              device_manager_xi2 = g_object_new (GDK_TYPE_X11_DEVICE_MANAGER_XI2,
-                                                 "display", display,
-                                                 "opcode", opcode,
-                                                 "major", major,
-                                                 "minor", minor,
-                                                 NULL);
+          device_manager_xi2 = g_object_new (GDK_TYPE_X11_DEVICE_MANAGER_XI2,
+                                             "display", display,
+                                             "opcode", opcode,
+                                             "major", major,
+                                             "minor", minor,
+                                             NULL);
 
-              return GDK_X11_DEVICE_MANAGER_CORE (device_manager_xi2);
-            }
+          return GDK_X11_DEVICE_MANAGER_CORE (device_manager_xi2);
         }
     }