Implement popup_during_fullscreen

This introduces a new view_impl function: is_transient_for. Similar to
container_has_ancestor but works using the surface parents rather than
the tree.

This patch modifies view_is_visible, container_at and so on to allow
transient views to function normally when they're in front of a
fullscreen view.

1 files changed, 8 insertions, 1 deletions

diff --git a/sway/input/seat.c b/sway/input/seat.c
index f5cb2f9e..690b59e6 100644
--- a/sway/input/seat.c
+++ b/sway/input/seat.c
@@ -655,7 +655,14 @@ void seat_set_focus_warp(struct sway_seat *seat, struct sway_node *node,
         // Deny setting focus to a view which is hidden by a fullscreen container
         if (new_workspace && new_workspace->fullscreen && container &&
                         !container_is_fullscreen_or_child(container)) {
-                return;
+                // Unless it's a transient container
+                bool is_transient = new_workspace->fullscreen->view &&
+                        config->popup_during_fullscreen == POPUP_SMART &&
+                        container->view && view_is_transient_for(
+                                        container->view, new_workspace->fullscreen->view);
+                if (!is_transient) {
+                        return;
+                }
         }
 
         struct sway_output *last_output = last_workspace ?