[mutter] tiling: disable "shake loose" feature when edge tiling

[Ray Strode <halfline src gnome org>]

commit 161c1088f91080f8caa955faf3d7a8cae430d00e
Author: Florian Müllner <fmuellner gnome org>
Date:   Thu Dec 2 16:43:21 2010 -0500

    tiling: disable "shake loose" feature when edge tiling
    
    The old behavior of being able to shake loose a maximized window
    overlaps with and is for the most part superceded by top edge tiling.
    
    This commit changes the code to only enable shake loose behavior
    when edge tiling is disabled.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=630548

 src/core/window.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/src/core/window.c b/src/core/window.c
index f8d64e5..7db887c 100644
--- a/src/core/window.c
+++ b/src/core/window.c
@@ -7877,8 +7877,11 @@ update_move (MetaWindow  *window,
     {
       double prop;
 
-      /* Shake loose */
-      window->shaken_loose = !META_WINDOW_TILED_SIDE_BY_SIDE (window);
+      /* Shake loose, so that the window snaps back to maximized
+       * when dragged near the top; do not snap back if tiling
+       * is enabled, as top edge tiling can be used in that case
+       */
+      window->shaken_loose = !meta_prefs_get_edge_tiling ();
       window->tile_mode = META_TILE_NONE;
 
       /* move the unmaximized window to the cursor */