Allow the panel's desktop menu to be opened at the pointer position.

Signed-off-by: Darren Salt <linux@youmustbejoking.demon.co.uk>

diff -u xfdesktop4-4.3.90.2/debian/changelog xfdesktop4-4.3.90.2/debian/changelog
--- xfdesktop4-4.3.90.2.orig/panel-plugin/desktop-menu-plugin.c
+++ xfdesktop4-4.3.90.2/panel-plugin/desktop-menu-plugin.c
@@ -341,7 +341,7 @@
 }
 
 static void
-menu_activate(DMPlugin *dmp)
+menu_activate(DMPlugin *dmp, gboolean at_pointer)
 {
     GtkWidget *menu;
     GtkWidget *button;
@@ -362,11 +362,12 @@
         id = g_signal_connect(menu, "deactivate", 
                 G_CALLBACK(menu_deactivated), dmp);
         g_object_set_data(G_OBJECT(menu), "sig_id", GUINT_TO_POINTER(id));
-        gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button), TRUE);
+        if (!at_pointer)
+          gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button), TRUE);
         xfce_panel_plugin_register_menu (dmp->plugin, GTK_MENU(menu));
         gtk_menu_popup(GTK_MENU(menu), NULL, NULL,
-                       (GtkMenuPositionFunc)dmp_position_menu, dmp,
-                       1, gtk_get_current_event_time());
+                       (GtkMenuPositionFunc)(at_pointer ? NULL : dmp_position_menu),
+                       dmp, 1, gtk_get_current_event_time());
     } else
         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button), FALSE);
 }
@@ -392,7 +393,11 @@
 
     if(evt->data_format == 8) {
         if(strcmp(XFCE_MENU_MESSAGE, evt->data.b) == 0) {
-            menu_activate(dmp);
+            menu_activate(dmp, FALSE);
+            return TRUE;
+        }
+        if(strcmp(XFCE_MENU_AT_POINTER_MESSAGE, evt->data.b) == 0) {
+            menu_activate(dmp, TRUE);
             return TRUE;
         }
     }
@@ -415,7 +420,7 @@
         return FALSE;
     }
 
-    menu_activate(dmp);
+    menu_activate(dmp, FALSE);
 
     return TRUE;
 }
--- xfdesktop4-4.3.90.2.orig/panel-plugin/xfce4-popup-menu.h
+++ xfdesktop4-4.3.90.2/panel-plugin/xfce4-popup-menu.h
@@ -29,6 +29,10 @@
 #define XFCE_MENU_MESSAGE	"xfce4-menu-popup"
 #endif /* XFCE_MENU_MESSAGE */
 
+#ifndef XFCE_MENU_AT_POINTER_MESSAGE
+#define XFCE_MENU_AT_POINTER_MESSAGE	"xfce4-menu-popup-p"
+#endif /* XFCE_MENU_AT_POINTER_MESSAGE */
+
 #ifndef XFCE_MENU_SELECTION
 #define XFCE_MENU_SELECTION	"XFCE_MENU_SELECTION"
 #endif /* XFCE_MENU_SELECTION */
--- xfdesktop4-4.3.90.2.orig/panel-plugin/xfce4-popup-menu.c
+++ xfdesktop4-4.3.90.2/panel-plugin/xfce4-popup-menu.c
@@ -79,7 +79,10 @@
     gev.send_event = TRUE;
     gev.message_type = gdk_atom_intern("STRING", FALSE);
     gev.data_format = 8;
-    strcpy(gev.data.b, XFCE_MENU_MESSAGE);
+    if (argc > 1 && !strcmp (argv[1], "-pointer"))
+      strcpy(gev.data.b, XFCE_MENU_AT_POINTER_MESSAGE);
+    else
+      strcpy(gev.data.b, XFCE_MENU_MESSAGE);
     
     if (xfce4_check_is_running(win, &id))
         gdk_event_send_client_message((GdkEvent *)&gev,