feat: 1.9 merge (#277)

Co-authored-by: William McKinnon <[email protected]>
Co-authored-by: Erik Reider <[email protected]>

1 files changed, 26 insertions, 0 deletions

diff --git a/sway/desktop/surface.c b/sway/desktop/surface.c
index 1d7b536d..5932eaa2 100644
--- a/sway/desktop/surface.c
+++ b/sway/desktop/surface.c
@@ -2,8 +2,10 @@
 #include <stdlib.h>
 #include <time.h>
 #include <wlr/types/wlr_compositor.h>
+#include <wlr/types/wlr_fractional_scale_v1.h>
 #include "sway/server.h"
 #include "sway/surface.h"
+#include "sway/output.h"
 
 static void handle_destroy(struct wl_listener *listener, void *data) {
 	struct sway_surface *surface = wl_container_of(listener, surface, destroy);
@@ -44,3 +46,27 @@ void handle_compositor_new_surface(struct wl_listener *listener, void *data) {
 		wl_resource_post_no_memory(wlr_surface->resource);
 	}
 }
+
+void surface_update_outputs(struct wlr_surface *surface) {
+	float scale = 1;
+	struct wlr_surface_output *surface_output;
+	wl_list_for_each(surface_output, &surface->current_outputs, link) {
+		if (surface_output->output->scale > scale) {
+			scale = surface_output->output->scale;
+		}
+	}
+	wlr_fractional_scale_v1_notify_scale(surface, scale);
+	wlr_surface_set_preferred_buffer_scale(surface, ceil(scale));
+}
+
+void surface_enter_output(struct wlr_surface *surface,
+		struct sway_output *output) {
+	wlr_surface_send_enter(surface, output->wlr_output);
+	surface_update_outputs(surface);
+}
+
+void surface_leave_output(struct wlr_surface *surface,
+		struct sway_output *output) {
+	wlr_surface_send_leave(surface, output->wlr_output);
+	surface_update_outputs(surface);
+}