From 5443d3f8281c882d73a5f42ddb242c23c3533574 Mon Sep 17 00:00:00 2001
From: Dominique Martinet <dominique.martinet@atmark-techno.com>
Date: Tue, 18 May 2021 08:52:22 +0900
Subject: [PATCH] seat: add wlr_virtual_pointer_manager_v1

together with the previous patch, wayvnc can now be used with cage:
 $ cage something
 # figure out which wayland socket cage used
 $ WAYLAND_DISPLAY=wayland-0 wayvnc

Note this does not appear to work with headless backend, e.g. starting cage with
WLR_BACKENDS=headless WLR_LIBINPUT_NO_DEVICES=1 cage something
does start and wayvnc connects/displays output, but there are tons of errors
and input does not work
---
 seat.c | 17 +++++++++++++++++
 seat.h |  2 ++
 2 files changed, 19 insertions(+)

diff --git a/seat.c b/seat.c
index 5906828..59f8c16 100644
--- a/seat.c
+++ b/seat.c
@@ -24,6 +24,7 @@
 #include <wlr/types/wlr_surface.h>
 #include <wlr/types/wlr_touch.h>
 #include <wlr/types/wlr_virtual_keyboard_v1.h>
+#include <wlr/types/wlr_virtual_pointer_v1.h>
 #include <wlr/types/wlr_xcursor_manager.h>
 #include <wlr/util/log.h>
 #if CAGE_HAS_XWAYLAND
@@ -207,6 +208,18 @@ handle_new_pointer(struct cg_seat *seat, struct wlr_input_device *device)
 	map_input_device_to_output(seat, device);
 }
 
+static void
+handle_virtual_pointer(struct wl_listener *listener, void *data)
+{
+	struct cg_seat *seat = wl_container_of(listener, seat, new_virtual_pointer);
+	struct wlr_virtual_pointer_v1_new_pointer_event *event = data;
+	struct wlr_virtual_pointer_v1 *pointer = event->new_pointer;
+	struct wlr_input_device *device = &pointer->input_device;
+
+	/* event->suggested_seat should be checked if we handle multiple seats */
+	handle_new_pointer(seat, device);
+}
+
 static void
 handle_modifier_event(struct wlr_input_device *device, struct cg_seat *seat)
 {
@@ -824,6 +837,10 @@ seat_create(struct cg_server *server, struct wlr_backend *backend)
 	wl_signal_add(&seat->virtual_keyboard->events.new_virtual_keyboard, &seat->new_virtual_keyboard);
 	seat->new_virtual_keyboard.notify = handle_virtual_keyboard;
 
+	seat->virtual_pointer = wlr_virtual_pointer_manager_v1_create(server->wl_display);
+	wl_signal_add(&seat->virtual_pointer->events.new_virtual_pointer, &seat->new_virtual_pointer);
+	seat->new_virtual_pointer.notify = handle_virtual_pointer;
+
 	return seat;
 }
 
diff --git a/seat.h b/seat.h
index 36573d4..fefc5c9 100644
--- a/seat.h
+++ b/seat.h
@@ -27,7 +27,9 @@ struct cg_seat {
 
 	// These belong to higher level if multiple seats are allowed
 	struct wlr_virtual_keyboard_manager_v1 *virtual_keyboard;
+	struct wlr_virtual_pointer_manager_v1 *virtual_pointer;
 	struct wl_listener new_virtual_keyboard;
+	struct wl_listener new_virtual_pointer;
 
 	struct wlr_cursor *cursor;
 	struct wlr_xcursor_manager *xcursor_manager;