From 6651d45ed44e2af28e8f99f326cb4ef4190f0bdd Mon Sep 17 00:00:00 2001
From: Johan Malm <jgm323@gmail.com>
Date: Sun, 26 Dec 2021 22:09:41 +0000
Subject: [PATCH] cursor: add cursor_update_focus()

...and call it from desktop_move_to_front() in order force an enter event
on the surface below the cursor when cycling views.

Inspired by PR #164 - just restructured it a bit.

Suggested-by: @bi4k8
---
 include/labwc.h |  9 +++++++++
 src/cursor.c    | 14 ++++++++++++++
 src/desktop.c   |  1 +
 3 files changed, 24 insertions(+)

diff --git a/include/labwc.h b/include/labwc.h
index 345ff878..f71512e4 100644
--- a/include/labwc.h
+++ b/include/labwc.h
@@ -441,6 +441,15 @@ void cursor_rebase(struct seat *seat, uint32_t time_msec);
  * @cursor_name - name of cursor, for example "left_ptr" or "grab"
  */
 void cursor_set(struct seat *seat, const char *cursor_name);
+
+/**
+ * cursor_update_focus - update cursor focus
+ * @server - server
+ * Use it to force an update of the cursor icon and to send an enter event
+ * to the surface below the cursor.
+ */
+void cursor_update_focus(struct server *server);
+
 void cursor_init(struct seat *seat);
 
 void keyboard_init(struct seat *seat);
diff --git a/src/cursor.c b/src/cursor.c
index f2c923a4..c2b3a19f 100644
--- a/src/cursor.c
+++ b/src/cursor.c
@@ -256,6 +256,20 @@ process_cursor_motion(struct server *server, uint32_t time)
 	}
 }
 
+static uint32_t
+msec(const struct timespec *t)
+{
+	return t->tv_sec * 1000 + t->tv_nsec / 1000000;
+}
+
+void
+cursor_update_focus(struct server *server)
+{
+	struct timespec now;
+	clock_gettime(CLOCK_MONOTONIC, &now);
+	process_cursor_motion(server, msec(&now));
+}
+
 void
 start_drag(struct wl_listener *listener, void *data)
 {
diff --git a/src/desktop.c b/src/desktop.c
index ba4aec95..9c09598c 100644
--- a/src/desktop.c
+++ b/src/desktop.c
@@ -61,6 +61,7 @@ desktop_move_to_front(struct view *view)
 #if HAVE_XWAYLAND
 	move_xwayland_sub_views_to_front(view);
 #endif
+	cursor_update_focus(view->server);
 }
 
 static void
-- 
2.52.0