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, 7 insertions, 0 deletions

diff --git a/include/sway/config.h b/include/sway/config.h
index 0e51fbfb..00b5f25b 100644
--- a/include/sway/config.h
+++ b/include/sway/config.h
@@ -256,6 +256,12 @@ enum edge_border_types {
         E_SMART_NO_GAPS, /**< hide both if one window and gaps to edge is zero */
 };
 
+enum sway_popup_during_fullscreen {
+        POPUP_SMART,
+        POPUP_IGNORE,
+        POPUP_LEAVE,
+};
+
 enum command_context {
         CONTEXT_CONFIG = 1,
         CONTEXT_BINDING = 2,
@@ -355,6 +361,7 @@ struct sway_config {
         bool pango_markup;
         size_t urgent_timeout;
         enum sway_fowa focus_on_window_activation;
+        enum sway_popup_during_fullscreen popup_during_fullscreen;
 
         // Flags
         bool focus_follows_mouse;