Add support for gtk3 _GTK_SHOW_WINDOW_MENU event

3 files changed, 23 insertions, 0 deletions

diff --git a/src/core/atomnames.h b/src/core/atomnames.h
index 2775d3db..cda2e33a 100644
--- a/src/core/atomnames.h
+++ b/src/core/atomnames.h
@@ -59,6 +59,7 @@ item(_MARCO_RELOAD_THEME_MESSAGE)
 item(_MARCO_SET_KEYBINDINGS_MESSAGE)
 item(_MARCO_TOGGLE_VERBOSE)
 item(_GTK_FRAME_EXTENTS)
+item(_GTK_SHOW_WINDOW_MENU)
 item(_MATE_PANEL_ACTION)
 item(_MATE_PANEL_ACTION_MAIN_MENU)
 item(_MATE_PANEL_ACTION_RUN_DIALOG)
diff --git a/src/core/screen.c b/src/core/screen.c
index f0ce5dff..107a2d0b 100644
--- a/src/core/screen.c
+++ b/src/core/screen.c
@@ -103,6 +103,7 @@ set_supported_hint (MetaScreen *screen)
 #undef item
 #undef EWMH_ATOMS_ONLY
     screen->display->atom__GTK_FRAME_EXTENTS,
+    screen->display->atom__GTK_SHOW_WINDOW_MENU,
   };
 
   XChangeProperty (screen->display->xdisplay, screen->xroot,
diff --git a/src/core/window.c b/src/core/window.c
index 530bc407..eec909aa 100644
--- a/src/core/window.c
+++ b/src/core/window.c
@@ -5399,6 +5399,27 @@ meta_window_client_message (MetaWindow *window,
 
       meta_window_update_fullscreen_monitors (window, top, bottom, left, right);
     }
+  else if (event->xclient.message_type ==
+           display->atom__GTK_SHOW_WINDOW_MENU)
+    {
+      gulong x_root, y_root;
+      guint32 timestamp;
+      int button;
+
+      if (meta_prefs_get_raise_on_click ())
+        meta_window_raise (window);
+
+      timestamp = meta_display_get_current_time_roundtrip (display);
+      x_root = event->xclient.data.l[1];
+      y_root = event->xclient.data.l[2];
+      button = 3;
+
+      meta_window_show_menu (window,
+                             x_root,
+                             y_root,
+                             button,
+                             timestamp);
+    }
 
   return FALSE;
 }