From a98f1b2764db2505dc374fbfca64d337871be7e6 Mon Sep 17 00:00:00 2001
From: Carlos Garnacho <carlosg@gnome.org>
Date: Tue, 14 Nov 2023 23:25:35 +0100
Subject: [PATCH] wayland: Add getter for the implicitly grabbed surface of a
 touch sequence

This will be used to implement the default MetaWaylandEventInterface at
MetaWaylandSeat.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3420>
---
 src/wayland/meta-wayland-touch.c | 16 ++++++++++++++++
 src/wayland/meta-wayland-touch.h |  3 +++
 2 files changed, 19 insertions(+)

diff --git a/src/wayland/meta-wayland-touch.c b/src/wayland/meta-wayland-touch.c
index d75ced4cf..401abca85 100644
--- a/src/wayland/meta-wayland-touch.c
+++ b/src/wayland/meta-wayland-touch.c
@@ -637,6 +637,22 @@ meta_wayland_touch_get_press_coords (MetaWaylandTouch     *touch,
   return TRUE;
 }
 
+MetaWaylandSurface *
+meta_wayland_touch_get_surface (MetaWaylandTouch     *touch,
+                                ClutterEventSequence *sequence)
+{
+  MetaWaylandTouchInfo *touch_info;
+
+  if (!touch->touches)
+    return NULL;
+
+  touch_info = touch_get_info (touch, sequence, FALSE);
+  if (!touch_info || !touch_info->touch_surface)
+    return NULL;
+
+  return touch_info->touch_surface->surface;
+}
+
 static void
 meta_wayland_touch_init (MetaWaylandTouch *touch)
 {
diff --git a/src/wayland/meta-wayland-touch.h b/src/wayland/meta-wayland-touch.h
index ab2138adb..259cec7c5 100644
--- a/src/wayland/meta-wayland-touch.h
+++ b/src/wayland/meta-wayland-touch.h
@@ -73,3 +73,6 @@ gboolean meta_wayland_touch_get_press_coords (MetaWaylandTouch     *touch,
 
 gboolean meta_wayland_touch_can_popup        (MetaWaylandTouch *touch,
                                               uint32_t          serial);
+
+MetaWaylandSurface * meta_wayland_touch_get_surface (MetaWaylandTouch     *touch,
+                                                     ClutterEventSequence *sequence);