Revert "window: Remove old tiling code"

This reverts commit 8bded7d497.
2025-07-28 12:38:04 +00:00 · 2016-01-10 15:16:09 +01:00
parent 3aea8d8ce6
commit 46eb682c83
12 changed files with 530 additions and 31 deletions
--- a/src/core/window.c
+++ b/src/core/window.c
@@ -898,6 +898,8 @@ _meta_window_shared_new (MetaDisplay         *display,
  window->require_titlebar_visible = TRUE;
  window->on_all_workspaces = FALSE;
  window->on_all_workspaces_requested = FALSE;
+  window->tile_mode = META_TILE_NONE;
+  window->tile_monitor_number = -1;
  window->shaded = FALSE;
  window->initially_iconic = FALSE;
  window->minimized = FALSE;
@@ -994,6 +996,8 @@ _meta_window_shared_new (MetaDisplay         *display,
                                                              window);
  window->preferred_output_winsys_id = window->monitor->winsys_id;

+  window->tile_match = NULL;
+
  /* Assign this #MetaWindow a sequence number which can be used
   * for sorting.
   */
@@ -2609,7 +2613,7 @@ ensure_size_hints_satisfied (MetaRectangle    *rect,
 static void
 meta_window_save_rect (MetaWindow *window)
 {
-  if (!(META_WINDOW_MAXIMIZED (window) || window->fullscreen))
+  if (!(META_WINDOW_MAXIMIZED (window) || META_WINDOW_TILED_SIDE_BY_SIDE (window) || window->fullscreen))
    {
      /* save size/pos as appropriate args for move_resize */
      if (!window->maximized_horizontally)
@@ -2648,6 +2652,9 @@ meta_window_maximize_internal (MetaWindow        *window,
  else
    meta_window_save_rect (window);

+  if (maximize_horizontally && maximize_vertically)
+    window->saved_maximize = TRUE;
+
  window->maximized_horizontally =
    window->maximized_horizontally || maximize_horizontally;
  window->maximized_vertically =
@@ -2669,6 +2676,7 @@ void
 meta_window_maximize (MetaWindow        *window,
                      MetaMaximizeFlags  directions)
 {
+  MetaRectangle *saved_rect = NULL;
  gboolean maximize_horizontally, maximize_vertically;

  g_return_if_fail (!window->override_redirect);
@@ -2707,7 +2715,17 @@ meta_window_maximize (MetaWindow        *window,
 	  return;
 	}

-      meta_window_maximize_internal (window, directions, NULL);
+      if (window->tile_mode != META_TILE_NONE)
+        {
+          saved_rect = &window->saved_rect;
+
+          window->maximized_vertically = FALSE;
+          window->tile_mode = META_TILE_NONE;
+        }
+
+      meta_window_maximize_internal (window,
+                                     directions,
+                                     saved_rect);

      MetaRectangle old_frame_rect, old_buffer_rect, new_rect;

@@ -2881,6 +2899,29 @@ meta_window_requested_dont_bypass_compositor (MetaWindow *window)
  return window->bypass_compositor == _NET_WM_BYPASS_COMPOSITOR_HINT_OFF;
 }

+void
+meta_window_tile (MetaWindow *window)
+{
+  MetaMaximizeFlags directions;
+
+  /* Don't do anything if no tiling is requested */
+  if (window->tile_mode == META_TILE_NONE)
+    return;
+
+  if (window->tile_mode == META_TILE_MAXIMIZED)
+    directions = META_MAXIMIZE_BOTH;
+  else
+    directions = META_MAXIMIZE_VERTICAL;
+
+  meta_window_maximize_internal (window, directions, NULL);
+  meta_screen_update_tile_preview (window->screen, FALSE);
+
+  meta_window_move_resize_now (window);
+
+  if (window->frame)
+    meta_frame_queue_draw (window->frame);
+}
+
 static gboolean
 meta_window_can_tile_maximized (MetaWindow *window)
 {
@@ -2958,6 +2999,9 @@ meta_window_unmaximize (MetaWindow        *window,
  unmaximize_vertically   = directions & META_MAXIMIZE_VERTICAL;
  g_assert (unmaximize_horizontally || unmaximize_vertically);

+  if (unmaximize_horizontally && unmaximize_vertically)
+    window->saved_maximize = FALSE;
+
  /* Only do something if the window isn't already maximized in the
   * given direction(s).
   */
@@ -3511,6 +3555,9 @@ meta_window_update_for_monitors_changed (MetaWindow *window)
  if (!new)
    new = &window->screen->monitor_infos[window->screen->primary_monitor_index];

+  if (window->tile_mode != META_TILE_NONE)
+    window->tile_monitor_number = new->number;
+
  /* This will eventually reach meta_window_update_monitor that
   * will send leave/enter-monitor events. The old != new monitor
   * check will always fail (due to the new monitor_infos set) so
@@ -3692,6 +3739,9 @@ meta_window_move_resize_internal (MetaWindow          *window,
    }

  meta_window_foreach_transient (window, maybe_move_attached_dialog, NULL);
+
+  meta_stack_update_window_tile_matches (window->screen->stack,
+                                         window->screen->active_workspace);
 }

 /**
@@ -3796,6 +3846,9 @@ meta_window_move_to_monitor (MetaWindow  *window,
                                         monitor,
                                         &new_area);

+  if (window->tile_mode != META_TILE_NONE)
+    window->tile_monitor_number = monitor;
+
  meta_window_move_between_rects (window, &old_area, &new_area);
  window->preferred_output_winsys_id = window->monitor->winsys_id;

@@ -5512,12 +5565,65 @@ update_move (MetaWindow  *window,
  shake_threshold = meta_prefs_get_drag_threshold () *
    DRAG_THRESHOLD_TO_SHAKE_THRESHOLD_FACTOR;

+  if (snap)
+    {
+      /* We don't want to tile while snapping. Also, clear any previous tile
+         request. */
+      window->tile_mode = META_TILE_NONE;
+      window->tile_monitor_number = -1;
+    }
+  else if (meta_prefs_get_edge_tiling () &&
+           !META_WINDOW_MAXIMIZED (window) &&
+           !META_WINDOW_TILED_SIDE_BY_SIDE (window))
+    {
+      const MetaMonitorInfo *monitor;
+      MetaRectangle work_area;
+
+      /* For side-by-side tiling we are interested in the inside vertical
+       * edges of the work area of the monitor where the pointer is located,
+       * and in the outside top edge for maximized tiling.
+       *
+       * For maximized tiling we use the outside edge instead of the
+       * inside edge, because we don't want to force users to maximize
+       * windows they are placing near the top of their screens.
+       *
+       * The "current" idea of meta_window_get_work_area_current_monitor() and
+       * meta_screen_get_current_monitor() is slightly different: the former
+       * refers to the monitor which contains the largest part of the window,
+       * the latter to the one where the pointer is located.
+       */
+      monitor = meta_screen_get_current_monitor_info_for_pos (window->screen, x, y);
+      meta_window_get_work_area_for_monitor (window,
+                                             monitor->number,
+                                             &work_area);
+
+      /* Check if the cursor is in a position which triggers tiling
+       * and set tile_mode accordingly.
+       */
+      if (meta_window_can_tile_side_by_side (window) &&
+          x >= monitor->rect.x && x < (work_area.x + shake_threshold))
+        window->tile_mode = META_TILE_LEFT;
+      else if (meta_window_can_tile_side_by_side (window) &&
+               x >= work_area.x + work_area.width - shake_threshold &&
+               x < (monitor->rect.x + monitor->rect.width))
+        window->tile_mode = META_TILE_RIGHT;
+      else if (meta_window_can_tile_maximized (window) &&
+               y >= monitor->rect.y && y <= work_area.y)
+        window->tile_mode = META_TILE_MAXIMIZED;
+      else
+        window->tile_mode = META_TILE_NONE;
+
+      if (window->tile_mode != META_TILE_NONE)
+        window->tile_monitor_number = monitor->number;
+    }
+
  /* shake loose (unmaximize) maximized or tiled window if dragged beyond
   * the threshold in the Y direction. Tiled windows can also be pulled
   * loose via X motion.
   */

-  if ((META_WINDOW_MAXIMIZED (window) && ABS (dy) >= shake_threshold))
+  if ((META_WINDOW_MAXIMIZED (window) && ABS (dy) >= shake_threshold) ||
+      (META_WINDOW_TILED_SIDE_BY_SIDE (window) && (MAX (ABS (dx), ABS (dy)) >= shake_threshold)))
    {
      double prop;

@@ -5526,6 +5632,7 @@ update_move (MetaWindow  *window,
       * 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 */
      prop =
@@ -5554,12 +5661,14 @@ update_move (MetaWindow  *window,
  /* remaximize window on another monitor if window has been shaken
   * loose or it is still maximized (then move straight)
   */
-  else if (window->shaken_loose || META_WINDOW_MAXIMIZED (window))
+  else if ((window->shaken_loose || META_WINDOW_MAXIMIZED (window)) &&
+           window->tile_mode != META_TILE_LEFT && window->tile_mode != META_TILE_RIGHT)
    {
      const MetaMonitorInfo *wmonitor;
      MetaRectangle work_area;
      int monitor;

+      window->tile_mode = META_TILE_NONE;
      wmonitor = window->monitor;

      for (monitor = 0; monitor < window->screen->n_monitor_infos; monitor++)
@@ -5604,10 +5713,17 @@ update_move (MetaWindow  *window,
        }
    }

+  /* Delay showing the tile preview slightly to make it more unlikely to
+   * trigger it unwittingly, e.g. when shaking loose the window or moving
+   * it to another monitor.
+   */
+  meta_screen_update_tile_preview (window->screen,
+                                   window->tile_mode != META_TILE_NONE);
+
  meta_window_get_frame_rect (window, &old);

-  /* Don't allow movement in the maximized directions */
-  if (window->maximized_horizontally)
+  /* Don't allow movement in the maximized directions or while tiled */
+  if (window->maximized_horizontally || META_WINDOW_TILED_SIDE_BY_SIDE (window))
    new_x = old.x;
  if (window->maximized_vertically)
    new_y = old.y;
@@ -5768,6 +5884,23 @@ update_resize (MetaWindow *window,
    g_get_current_time (&window->display->grab_last_moveresize_time);
 }

+static void
+update_tile_mode (MetaWindow *window)
+{
+  switch (window->tile_mode)
+    {
+      case META_TILE_LEFT:
+      case META_TILE_RIGHT:
+          if (!META_WINDOW_TILED_SIDE_BY_SIDE (window))
+              window->tile_mode = META_TILE_NONE;
+          break;
+      case META_TILE_MAXIMIZED:
+          if (!META_WINDOW_MAXIMIZED (window))
+              window->tile_mode = META_TILE_NONE;
+          break;
+    }
+}
+
 void
 meta_window_update_resize (MetaWindow *window,
                           gboolean    snap,
@@ -5798,9 +5931,12 @@ end_grab_op (MetaWindow *window,
    {
      if (meta_grab_op_is_moving (window->display->grab_op))
        {
-          update_move (window,
-                       modifiers & CLUTTER_SHIFT_MASK,
-                       x, y);
+          if (window->tile_mode != META_TILE_NONE)
+            meta_window_tile (window);
+          else
+            update_move (window,
+                         modifiers & CLUTTER_SHIFT_MASK,
+                         x, y);
        }
      else if (meta_grab_op_is_resizing (window->display->grab_op))
        {
@@ -5808,6 +5944,15 @@ end_grab_op (MetaWindow *window,
                         modifiers & CLUTTER_SHIFT_MASK,
                         x, y,
                         TRUE);
+
+          /* If a tiled window has been dragged free with a
+           * mouse resize without snapping back to the tiled
+           * state, it will end up with an inconsistent tile
+           * mode on mouse release; cleaning the mode earlier
+           * would break the ability to snap back to the tiled
+           * state, so we wait until mouse release.
+           */
+          update_tile_mode (window);
        }
    }
  meta_display_end_grab_op (window->display, clutter_event_get_time (event));
@@ -5992,6 +6137,40 @@ meta_window_get_work_area_all_monitors (MetaWindow    *window,
              window->desc, area->x, area->y, area->width, area->height);
 }

+int
+meta_window_get_current_tile_monitor_number (MetaWindow *window)
+{
+  int tile_monitor_number = window->tile_monitor_number;
+
+  if (tile_monitor_number < 0)
+    {
+      meta_warning ("%s called with an invalid monitor number; using 0 instead\n", G_STRFUNC);
+      tile_monitor_number = 0;
+    }
+
+  return tile_monitor_number;
+}
+
+void
+meta_window_get_current_tile_area (MetaWindow    *window,
+                                   MetaRectangle *tile_area)
+{
+  int tile_monitor_number;
+
+  g_return_if_fail (window->tile_mode != META_TILE_NONE);
+
+  tile_monitor_number = meta_window_get_current_tile_monitor_number (window);
+
+  meta_window_get_work_area_for_monitor (window, tile_monitor_number, tile_area);
+
+  if (window->tile_mode == META_TILE_LEFT  ||
+      window->tile_mode == META_TILE_RIGHT)
+    tile_area->width /= 2;
+
+  if (window->tile_mode == META_TILE_RIGHT)
+    tile_area->x += tile_area->width;
+}
+
 gboolean
 meta_window_same_application (MetaWindow *window,
                              MetaWindow *other_window)
@@ -6995,7 +7174,8 @@ meta_window_get_frame_type (MetaWindow *window)
      return META_FRAME_TYPE_LAST;
    }
  else if (window->border_only ||
-           (window->hide_titlebar_when_maximized && META_WINDOW_MAXIMIZED (window)))
+           (window->hide_titlebar_when_maximized && META_WINDOW_MAXIMIZED (window)) ||
+           (window->hide_titlebar_when_maximized && META_WINDOW_TILED_SIDE_BY_SIDE (window)))
    {
      /* override base frame type */
      return META_FRAME_TYPE_BORDER;
@@ -7044,6 +7224,103 @@ meta_window_is_attached_dialog (MetaWindow *window)
  return window->attached;
 }

+/**
+ * meta_window_get_tile_match:
+ * @window: a #MetaWindow
+ *
+ * Returns the matching tiled window on the same monitor as @window. This is
+ * the topmost tiled window in a complementary tile mode that is:
+ *
+ *  - on the same monitor;
+ *  - on the same workspace;
+ *  - spanning the remaining monitor width;
+ *  - there is no 3rd window stacked between both tiled windows that's
+ *    partially visible in the common edge.
+ *
+ * Return value: (transfer none) (nullable): the matching tiled window or
+ * %NULL if it doesn't exist.
+ */
+MetaWindow *
+meta_window_get_tile_match (MetaWindow *window)
+{
+  return window->tile_match;
+}
+
+void
+meta_window_compute_tile_match (MetaWindow *window)
+{
+  MetaWindow *match;
+  MetaStack *stack;
+  MetaTileMode match_tile_mode = META_TILE_NONE;
+
+  window->tile_match = NULL;
+
+  if (window->shaded || window->minimized)
+    return;
+
+  if (META_WINDOW_TILED_LEFT (window))
+    match_tile_mode = META_TILE_RIGHT;
+  else if (META_WINDOW_TILED_RIGHT (window))
+    match_tile_mode = META_TILE_LEFT;
+  else
+    return;
+
+  stack = window->screen->stack;
+
+  for (match = meta_stack_get_top (stack);
+       match;
+       match = meta_stack_get_below (stack, match, FALSE))
+    {
+      if (!match->shaded &&
+          !match->minimized &&
+          match->tile_mode == match_tile_mode &&
+          match->monitor == window->monitor &&
+          meta_window_get_workspace (match) == meta_window_get_workspace (window))
+        break;
+    }
+
+  if (match)
+    {
+      MetaWindow *above, *bottommost, *topmost;
+      MetaRectangle above_rect, bottommost_rect, topmost_rect;
+
+      if (meta_stack_windows_cmp (window->screen->stack, match, window) > 0)
+        {
+          topmost = match;
+          bottommost = window;
+        }
+      else
+        {
+          topmost = window;
+          bottommost = match;
+        }
+
+      meta_window_get_frame_rect (bottommost, &bottommost_rect);
+      meta_window_get_frame_rect (topmost, &topmost_rect);
+      /*
+       * If there's a window stacked in between which is partially visible
+       * behind the topmost tile we don't consider the tiles to match.
+       */
+      for (above = meta_stack_get_above (stack, bottommost, FALSE);
+           above && above != topmost;
+           above = meta_stack_get_above (stack, above, FALSE))
+        {
+          if (above->minimized ||
+              above->monitor != window->monitor ||
+              meta_window_get_workspace (above) != meta_window_get_workspace (window))
+            continue;
+
+          meta_window_get_frame_rect (above, &above_rect);
+
+          if (meta_rectangle_overlap (&above_rect, &bottommost_rect) &&
+              meta_rectangle_overlap (&above_rect, &topmost_rect))
+            return;
+        }
+
+      window->tile_match = match;
+    }
+}
+
 void
 meta_window_set_title (MetaWindow *window,
                       const char *title)