Listen to output layout change

1 files changed, 16 insertions, 1 deletions

diff --git a/sway/tree/layout.c b/sway/tree/layout.c
index cb39a361..fd17f8a5 100644
--- a/sway/tree/layout.c
+++ b/sway/tree/layout.c
@@ -7,6 +7,7 @@
 #include <wlr/types/wlr_output.h>
 #include <wlr/types/wlr_output_layout.h>
 #include "sway/container.h"
+#include "sway/layout.h"
 #include "sway/output.h"
 #include "sway/view.h"
 #include "list.h"
@@ -14,13 +15,27 @@
 
 swayc_t root_container;
 
+static void output_layout_change_notify(struct wl_listener *listener, void *data) {
+        struct wlr_box *box = wlr_output_layout_get_box(
+                root_container.sway_root->output_layout, NULL);
+        root_container.width = box->width;
+        root_container.height = box->height;
+}
+
 void init_layout(void) {
         root_container.id = 0; // normally assigned in new_swayc()
         root_container.type = C_ROOT;
         root_container.layout = L_NONE;
         root_container.name = strdup("root");
         root_container.children = create_list();
-        root_container.output_layout = wlr_output_layout_create();
+
+        root_container.sway_root = calloc(1, sizeof(*root_container.sway_root));
+        root_container.sway_root->output_layout = wlr_output_layout_create();
+
+        root_container.sway_root->output_layout_change.notify =
+                output_layout_change_notify;
+        wl_signal_add(&root_container.sway_root->output_layout->events.change,
+                &root_container.sway_root->output_layout_change);
 }
 
 void add_child(swayc_t *parent, swayc_t *child) {