[gtk+/gtk-3-22] Fix several issues with resizing

[Matthias Clasen <matthiasc src gnome org>]

commit 899cfb3c50e013589540c59c57ba0dd3722255e7
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Oct 4 07:34:30 2017 -0400

    Fix several issues with resizing
    
    Some of the border windows were not placed correctly.
    
    Patch by Jan Steffens.

 gtk/gtkwindow.c |   21 +++++++--------------
 1 files changed, 7 insertions(+), 14 deletions(-)
---
diff --git a/gtk/gtkwindow.c b/gtk/gtkwindow.c
index ffc8418..a4ba098 100644
--- a/gtk/gtkwindow.c
+++ b/gtk/gtkwindow.c
@@ -6855,7 +6855,7 @@ update_corner_windows (GtkWindow *window,
                                        region, 0, 0);
       cairo_region_destroy (region);
 
-      gdk_window_hide (priv->border_window[GDK_WINDOW_EDGE_NORTH_EAST]);
+      gdk_window_show_unraised (priv->border_window[GDK_WINDOW_EDGE_NORTH_EAST]);
     }
   else
     {
@@ -7065,13 +7065,13 @@ update_border_windows (GtkWindow *window)
 
   if (resize_n)
     {
-      y += window_border.top;
+      y += window_border.top + handle_v;
       h -= window_border.top + handle_v;
     }
 
   if (resize_w)
     {
-      x += window_border.left;
+      x += window_border.left + handle_h;
       w -= window_border.left + handle_h;
     }
 
@@ -7084,9 +7084,9 @@ update_border_windows (GtkWindow *window)
   /* North */
   if (resize_n)
     {
-      gdk_window_move_resize (priv->border_window[GDK_WINDOW_EDGE_SOUTH],
-                              x, window_border.top + height,
-                              w, border.bottom);
+      gdk_window_move_resize (priv->border_window[GDK_WINDOW_EDGE_NORTH],
+                              x, window_border.top - border.top,
+                              w, border.top);
 
       gdk_window_show_unraised (priv->border_window[GDK_WINDOW_EDGE_NORTH]);
     }
@@ -7096,7 +7096,7 @@ update_border_windows (GtkWindow *window)
     }
 
   /* South */
-  if (resize_n)
+  if (resize_s)
     {
       gdk_window_move_resize (priv->border_window[GDK_WINDOW_EDGE_SOUTH],
                               x, window_border.top + height,
@@ -7109,13 +7109,6 @@ update_border_windows (GtkWindow *window)
       gdk_window_hide (priv->border_window[GDK_WINDOW_EDGE_SOUTH]);
     }
 
-  /*
-   * Horizontal edges
-   */
-
-  y = (resize_n || resize_s) ? window_border.top + handle_v : 0;
-  h = (resize_n || resize_s) ? height - 2 * handle_v : height + window_border.top + window_border.bottom;
-
   /* East */
   if (resize_e)
     {