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, 8 insertions, 0 deletions

diff --git a/include/sway/output.h b/include/sway/output.h
index 6283db68..80dcd37b 100644
--- a/include/sway/output.h
+++ b/include/sway/output.h
@@ -67,10 +67,18 @@ struct sway_container *output_get_active_workspace(struct sway_output *output);
 void output_render(struct sway_output *output, struct timespec *when,
 	pixman_region32_t *damage);
 
+void output_surface_for_each_surface(struct sway_output *output,
+		struct wlr_surface *surface, double ox, double oy,
+		sway_surface_iterator_func_t iterator, void *user_data);
+
 void output_view_for_each_surface(struct sway_output *output,
 	struct sway_view *view, sway_surface_iterator_func_t iterator,
 	void *user_data);
 
+void output_view_for_each_popup(struct sway_output *output,
+		struct sway_view *view, sway_surface_iterator_func_t iterator,
+		void *user_data);
+
 void output_layer_for_each_surface(struct sway_output *output,
 	struct wl_list *layer_surfaces, sway_surface_iterator_func_t iterator,
 	void *user_data);