Rework tiling code based off Consortium

Taken from
https://github.com/SolusOS-discontinued/consortium/commit/b463e03f5bdeab307ceee6b969c681f29537c76d

1 files changed, 33 insertions, 3 deletions

diff --git a/src/core/screen.c b/src/core/screen.c
index 998bd6e4..bd3667e8 100644
--- a/src/core/screen.c
+++ b/src/core/screen.c
@@ -1476,6 +1476,7 @@ meta_screen_tile_preview_update_timeout (gpointer data)
   MetaScreen *screen = data;
   MetaWindow *window = screen->display->grab_window;
   gboolean composited = screen->display->compositor != NULL;
+  gboolean needs_preview = FALSE;
 
   screen->tile_preview_timeout_id = 0;
 
@@ -1483,9 +1484,28 @@ meta_screen_tile_preview_update_timeout (gpointer data)
     screen->tile_preview = meta_tile_preview_new (screen->number,
                                                   composited);
 
-  if (window
-      && !META_WINDOW_TILED (window)
-      && window->tile_mode != META_TILE_NONE)
+  if (window)
+    {
+      switch (window->tile_mode)
+        {
+          case META_TILE_LEFT:
+          case META_TILE_RIGHT:
+              if (!META_WINDOW_TILED (window))
+                needs_preview = TRUE;
+              break;
+
+          case META_TILE_MAXIMIZED:
+              if (!META_WINDOW_MAXIMIZED (window))
+                needs_preview = TRUE;
+              break;
+
+          default:
+              needs_preview = FALSE;
+              break;
+        }
+    }
+
+  if (needs_preview)
     {
       MetaRectangle tile_rect;
 
@@ -1523,6 +1543,16 @@ meta_screen_tile_preview_update (MetaScreen *screen,
     }
 }
 
+void
+meta_screen_tile_preview_hide (MetaScreen *screen)
+{
+  if (screen->tile_preview_timeout_id > 0)
+    g_source_remove (screen->tile_preview_timeout_id);
+
+  if (screen->tile_preview)
+    meta_tile_preview_hide (screen->tile_preview);
+}
+
 MetaWindow*
 meta_screen_get_mouse_window (MetaScreen  *screen,
                               MetaWindow  *not_this_one)