[mutter] window: Fix get_input_rect in a hacky way

[Jasper St. Pierre <jstpierre src gnome org>]

commit 9d5273bb1516cb863bbb9ac2bcb73bd5c9c93cc8
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Mon Jun 16 18:28:18 2014 -0400

    window: Fix get_input_rect in a hacky way
    
    All of the users of get_input_rect don't actually want a synthesized
    input rect based off of the current margins. What they really want is
    the last-configured size of the toplevel window.
    
    Since we don't properly track this anymore in the generic MetaWindow,
    use XGetWindowAttributes to fetch a server-side rectangle. This is a
    bad layer violation, but since the window geometry code will have to
    be rewritten anyway for the Wayland set_window_geometry, let's just
    push a hacky fix for now.

 src/core/window.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)
---
diff --git a/src/core/window.c b/src/core/window.c
index 4461cab..7b3d6c8 100644
--- a/src/core/window.c
+++ b/src/core/window.c
@@ -4051,6 +4051,17 @@ meta_window_get_input_rect (const MetaWindow *window,
 {
   if (window->frame)
     *rect = window->frame->rect;
+  else if (window->xwindow != None)
+    {
+      XWindowAttributes xwa;
+
+      XGetWindowAttributes (window->display->xdisplay, window->xwindow, &xwa);
+
+      rect->x = xwa.x;
+      rect->y = xwa.y;
+      rect->width = xwa.width;
+      rect->height = xwa.height;
+    }
   else
     {
       *rect = window->rect;