From 85b37127a6e33a3d73a3dd6c5c0d02c3755c91f6 Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Tue, 18 Oct 2022 14:32:30 +0200
Subject: [PATCH] xwayland/shell: add
 wlr_xwayland_shell_v1_surface_from_serial()

---
 include/wlr/xwayland/shell.h |  8 ++++++++
 xwayland/shell.c             | 11 +++++++++++
 2 files changed, 19 insertions(+)

diff --git a/include/wlr/xwayland/shell.h b/include/wlr/xwayland/shell.h
index 91b7c716..75a410e2 100644
--- a/include/wlr/xwayland/shell.h
+++ b/include/wlr/xwayland/shell.h
@@ -70,4 +70,12 @@ void wlr_xwayland_shell_v1_destroy(struct wlr_xwayland_shell_v1 *shell);
 void wlr_xwayland_shell_v1_set_client(struct wlr_xwayland_shell_v1 *shell,
 	struct wl_client *client);
 
+/**
+ * Get a Wayland surface from an xwayland_shell_v1 serial.
+ *
+ * Returns NULL if the serial hasn't been associated with any surface.
+ */
+struct wlr_surface *wlr_xwayland_shell_v1_surface_from_serial(
+	struct wlr_xwayland_shell_v1 *shell, uint64_t serial);
+
 #endif
diff --git a/xwayland/shell.c b/xwayland/shell.c
index a6ec315b..e48d6283 100644
--- a/xwayland/shell.c
+++ b/xwayland/shell.c
@@ -224,3 +224,14 @@ void wlr_xwayland_shell_v1_set_client(struct wlr_xwayland_shell_v1 *shell,
 		wl_list_init(&shell->client_destroy.link);
 	}
 }
+
+struct wlr_surface *wlr_xwayland_shell_v1_surface_from_serial(
+		struct wlr_xwayland_shell_v1 *shell, uint64_t serial) {
+	struct wlr_xwayland_surface_v1 *xwl_surface;
+	wl_list_for_each(xwl_surface, &shell->surfaces, link) {
+		if (xwl_surface->serial == serial) {
+			return xwl_surface->surface;
+		}
+	}
+	return NULL;
+}