[gtk+] gdkscreen-x11: Enable RandR on VirtualBox

[Matthias Clasen <matthiasc src gnome org>]

commit f2ba6ca47322a17b37fb92662fc9552b4f106f10
Author: Takao Fujiwara <tfujiwar redhat com>
Date:   Sat Sep 10 01:54:13 2016 +0900

    gdkscreen-x11: Enable RandR on VirtualBox
    
    RandR 1.5 is enabled on VirtualBox guest of Fedora 25 but
    XRROutputInfo->name is "default". If init_randr15() does not
    return TRUE, the monitor size sets 0 because gdk_screen_get_width()
    returns 0.
    
    This problem causes GtkStatusIcon not to show the activate menu.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=771033

 gdk/x11/gdkscreen-x11.c |   35 ++---------------------------------
 1 files changed, 2 insertions(+), 33 deletions(-)
---
diff --git a/gdk/x11/gdkscreen-x11.c b/gdk/x11/gdkscreen-x11.c
index c189053..450872d 100644
--- a/gdk/x11/gdkscreen-x11.c
+++ b/gdk/x11/gdkscreen-x11.c
@@ -407,7 +407,6 @@ init_randr15 (GdkScreen *screen, gboolean *changed)
   RROutput primary_output = None;
   RROutput first_output = None;
   int i;
-  gboolean randr12_compat = FALSE;
   XRRMonitorInfo *rr_monitors;
   int num_rr_monitors;
   int old_primary;
@@ -452,9 +451,6 @@ init_randr15 (GdkScreen *screen, gboolean *changed)
       if (output_info == NULL)
         continue;
 
-      /* Non RandR1.2+ X driver have output name "default" */
-      randr12_compat |= !g_strcmp0 (output_info->name, "default");
-
       if (output_info->connection == RR_Disconnected)
         {
           XRRFreeOutputInfo (output_info);
@@ -534,19 +530,6 @@ init_randr15 (GdkScreen *screen, gboolean *changed)
   XRRFreeMonitors (rr_monitors);
   XRRFreeScreenResources (resources);
 
-  /* non RandR 1.2+ X driver doesn't return any usable multihead data */
-  if (randr12_compat)
-    {
-      for (i = 0; i < x11_display->monitors->len; i++)
-        {
-          GdkX11Monitor *monitor = x11_display->monitors->pdata[i];
-          if (monitor->remove)
-            gdk_display_monitor_removed (display, GDK_MONITOR (monitor));
-        }
-      g_ptr_array_remove_range (x11_display->monitors, 0, x11_display->monitors->len);
-      return FALSE;
-    }
-
   for (i = x11_display->monitors->len - 1; i >= 0; i--)
     {
       GdkX11Monitor *monitor = x11_display->monitors->pdata[i];
@@ -609,7 +592,6 @@ init_randr13 (GdkScreen *screen, gboolean *changed)
   RROutput primary_output = None;
   RROutput first_output = None;
   int i;
-  gboolean randr12_compat = FALSE;
   int old_primary;
 
   if (!x11_display->have_randr13)
@@ -633,9 +615,6 @@ init_randr13 (GdkScreen *screen, gboolean *changed)
       XRROutputInfo *output_info =
         XRRGetOutputInfo (x11_screen->xdisplay, resources, output);
 
-      /* Non RandR1.2+ X driver have output name "default" */
-      randr12_compat |= !g_strcmp0 (output_info->name, "default");
-
       if (output_info->connection == RR_Disconnected)
         {
           XRRFreeOutputInfo (output_info);
@@ -716,17 +695,7 @@ init_randr13 (GdkScreen *screen, gboolean *changed)
 
   XRRFreeScreenResources (resources);
 
-  if (randr12_compat)
-    {
-      for (i = 0; i < x11_display->monitors->len; i++)
-        {
-          GdkX11Monitor *monitor = x11_display->monitors->pdata[i];
-          if (monitor->remove)
-            gdk_display_monitor_removed (display, GDK_MONITOR (monitor));
-        }
-      g_ptr_array_remove_range (x11_display->monitors, 0, x11_display->monitors->len);
-      return FALSE;
-    }
+  /* Which usable multihead data is not returned in non RandR 1.2+ X driver? */
 
   for (i = x11_display->monitors->len - 1; i >= 0; i--)
     {
@@ -826,7 +795,7 @@ init_no_multihead (GdkScreen *screen, gboolean *changed)
                         gdk_screen_get_height (screen));
   g_object_notify (G_OBJECT (monitor), "workarea");
   gdk_monitor_set_physical_size (GDK_MONITOR (monitor),
-                                 gdk_screen_get_height_mm (screen),
+                                 gdk_screen_get_width_mm (screen),
                                  gdk_screen_get_height_mm (screen));
   gdk_monitor_set_scale_factor (GDK_MONITOR (monitor), x11_screen->window_scale);