input/cursor: pass gesture events to clients

Some wayland clients (mostly GTK3 apps) like eog or evince support
gestures like pinch-to-zoom. These gestures are given to clients
via the pointer_gestures_v1 protocol. This is already supported in
wlroots, so we just need to hook up the events here in sway.

Fixes #4724

1 files changed, 9 insertions, 0 deletions

diff --git a/include/sway/input/cursor.h b/include/sway/input/cursor.h
index e46c9b18..0bcd262f 100644
--- a/include/sway/input/cursor.h
+++ b/include/sway/input/cursor.h
@@ -3,6 +3,7 @@
 #include <stdbool.h>
 #include <stdint.h>
 #include <wlr/types/wlr_pointer_constraints_v1.h>
+#include <wlr/types/wlr_pointer_gestures_v1.h>
 #include <wlr/types/wlr_surface.h>
 #include "sway/input/seat.h"
 
@@ -32,6 +33,14 @@ struct sway_cursor {
         struct wlr_pointer_constraint_v1 *active_constraint;
         pixman_region32_t confine; // invalid if active_constraint == NULL
 
+        struct wlr_pointer_gestures_v1 *pointer_gestures;
+        struct wl_listener pinch_begin;
+        struct wl_listener pinch_update;
+        struct wl_listener pinch_end;
+        struct wl_listener swipe_begin;
+        struct wl_listener swipe_update;
+        struct wl_listener swipe_end;
+
         struct wl_listener motion;
         struct wl_listener motion_absolute;
         struct wl_listener button;