From 209407657dfc40c7d4a2611c25cf5a2b6c4757f1 Mon Sep 17 00:00:00 2001
From: Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
Date: Sun, 11 Jun 2017 14:58:21 -0300
Subject: [PATCH] window: Maximize tiled windows when resizing to work area

Now that tiled windows are resizable, the user may grow a tiled
windows until it covers the entire work area. As this makes the
window state mostly indistinguishable from maximization, avoid
subtle differences by properly maximizing the window in that case.

https://bugzilla.gnome.org/show_bug.cgi?id=645153
---
 src/core/window.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/src/core/window.c b/src/core/window.c
index 09f6fd3d0..9aa962cf2 100644
--- a/src/core/window.c
+++ b/src/core/window.c
@@ -6147,6 +6147,24 @@ update_resize (MetaWindow *window,
     g_get_current_time (&window->display->grab_last_moveresize_time);
 }
 
+static void
+maybe_maximize_tiled_window (MetaWindow *window)
+{
+  MetaRectangle work_area;
+  gint shake_threshold;
+
+  if (!META_WINDOW_TILED_SIDE_BY_SIDE (window))
+    return;
+
+  shake_threshold = meta_prefs_get_drag_threshold ();
+
+  meta_window_get_work_area_for_monitor (window,
+                                         window->tile_monitor_number,
+                                         &work_area);
+  if (window->rect.width >= work_area.width - shake_threshold)
+    meta_window_maximize (window, META_MAXIMIZE_BOTH);
+}
+
 void
 meta_window_update_resize (MetaWindow *window,
                            gboolean    snap,
@@ -6190,6 +6208,7 @@ end_grab_op (MetaWindow *window,
                          modifiers & CLUTTER_SHIFT_MASK,
                          x, y,
                          TRUE);
+          maybe_maximize_tiled_window (window);
         }
     }
   window->screen->preview_tile_mode = META_TILE_NONE;