Fix popups

Fixes the render and container_at order for popups.

Fixes #2210

For rendering:

* render_view_surfaces has been renamed to render_view_toplevels
* render_view_toplevels now uses output_surface_for_each_surface (which
is now public), as that function uses wlr_surface_for_each_surface which
doesn't descend into popups
* Views now have a for_each_popup iterator, which is used by the
renderer to render the focused view's popups
* When rendering a popup, toplevels (xdg subsurfaces) of that popup are
also rendered

For sending frame done, the logic has been updated to match the
rendering logic:

* send_frame_done_container no longer descends into popups
* for_each_popup is used to send frame done to the focused view's popups
and their child toplevels

For container_at:

* floating_container_at is now static, which means it had to be moved
higher in the file.
* container_at now considers popups for the focused view before checking
containers.
* tiling_container_at has been introduced, so that it doesn't call
container_at recursively (it would check popups recursively if it did)

1 files changed, 10 insertions, 0 deletions

diff --git a/sway/tree/view.c b/sway/tree/view.c
index 8f54cc11..c1207821 100644
--- a/sway/tree/view.c
+++ b/sway/tree/view.c
@@ -332,6 +332,16 @@ void view_for_each_surface(struct sway_view *view,
         }
 }
 
+void view_for_each_popup(struct sway_view *view,
+                wlr_surface_iterator_func_t iterator, void *user_data) {
+        if (!view->surface) {
+                return;
+        }
+        if (view->impl->for_each_popup) {
+                view->impl->for_each_popup(view, iterator, user_data);
+        }
+}
+
 static void view_subsurface_create(struct sway_view *view,
         struct wlr_subsurface *subsurface);