Add support for touch cancel events

1 files changed, 22 insertions, 0 deletions

diff --git a/sway/input/cursor.c b/sway/input/cursor.c
index 75d055cd..d8ec11ac 100644
--- a/sway/input/cursor.c
+++ b/sway/input/cursor.c
@@ -509,6 +509,24 @@ static void handle_touch_up(struct wl_listener *listener, void *data) {
         }
 }
 
+static void handle_touch_cancel(struct wl_listener *listener, void *data) {
+        struct sway_cursor *cursor = wl_container_of(listener, cursor, touch_cancel);
+        struct wlr_touch_cancel_event *event = data;
+        cursor_handle_activity_from_device(cursor, &event->touch->base);
+
+        struct sway_seat *seat = cursor->seat;
+
+        if (cursor->simulating_pointer_from_touch) {
+                if (cursor->pointer_touch_id == cursor->seat->touch_id) {
+                        cursor->pointer_touch_up = true;
+                        dispatch_cursor_button(cursor, &event->touch->base,
+                                event->time_msec, BTN_LEFT, WLR_BUTTON_RELEASED);
+                }
+        } else {
+                seatop_touch_cancel(seat, event);
+        }
+}
+
 static void handle_touch_motion(struct wl_listener *listener, void *data) {
         struct sway_cursor *cursor =
                 wl_container_of(listener, cursor, touch_motion);
@@ -1100,6 +1118,7 @@ void sway_cursor_destroy(struct sway_cursor *cursor) {
         wl_list_remove(&cursor->frame.link);
         wl_list_remove(&cursor->touch_down.link);
         wl_list_remove(&cursor->touch_up.link);
+        wl_list_remove(&cursor->touch_cancel.link);
         wl_list_remove(&cursor->touch_motion.link);
         wl_list_remove(&cursor->touch_frame.link);
         wl_list_remove(&cursor->tool_axis.link);
@@ -1181,6 +1200,9 @@ struct sway_cursor *sway_cursor_create(struct sway_seat *seat) {
         wl_signal_add(&wlr_cursor->events.touch_up, &cursor->touch_up);
         cursor->touch_up.notify = handle_touch_up;
 
+        wl_signal_add(&wlr_cursor->events.touch_cancel, &cursor->touch_cancel);
+        cursor->touch_cancel.notify = handle_touch_cancel;
+
         wl_signal_add(&wlr_cursor->events.touch_motion,
                 &cursor->touch_motion);
         cursor->touch_motion.notify = handle_touch_motion;