input/tablet: handle focusing NULL surface

Additionally, rename the function responsible for switching focus to
match its behavior better.

(cherry picked from commit 53c9a4a6438824abfb3d539bf55aec92074977e0)

1 files changed, 4 insertions, 8 deletions

diff --git a/sway/input/tablet.c b/sway/input/tablet.c
index 92ede3fa..884eba74 100644
--- a/sway/input/tablet.c
+++ b/sway/input/tablet.c
@@ -334,14 +334,10 @@ static void handle_pad_tablet_surface_destroy(struct wl_listener *listener,
         struct sway_tablet_pad *tablet_pad =
                 wl_container_of(listener, tablet_pad, surface_destroy);
 
-        wlr_tablet_v2_tablet_pad_notify_leave(tablet_pad->tablet_v2_pad,
-                tablet_pad->current_surface);
-        wl_list_remove(&tablet_pad->surface_destroy.link);
-        wl_list_init(&tablet_pad->surface_destroy.link);
-        tablet_pad->current_surface = NULL;
+        sway_tablet_pad_set_focus(tablet_pad, NULL);
 }
 
-void sway_tablet_pad_notify_enter(struct sway_tablet_pad *tablet_pad,
+void sway_tablet_pad_set_focus(struct sway_tablet_pad *tablet_pad,
                 struct wlr_surface *surface) {
         if (!tablet_pad || !tablet_pad->tablet) {
                 return;
@@ -360,7 +356,8 @@ void sway_tablet_pad_notify_enter(struct sway_tablet_pad *tablet_pad,
                 tablet_pad->current_surface = NULL;
         }
 
-        if (!wlr_surface_accepts_tablet_v2(tablet_pad->tablet->tablet_v2, surface)) {
+        if (surface == NULL ||
+                        !wlr_surface_accepts_tablet_v2(tablet_pad->tablet->tablet_v2, surface)) {
                 return;
         }
 
@@ -368,7 +365,6 @@ void sway_tablet_pad_notify_enter(struct sway_tablet_pad *tablet_pad,
                 tablet_pad->tablet->tablet_v2, surface);
 
         tablet_pad->current_surface = surface;
-        wl_list_remove(&tablet_pad->surface_destroy.link);
         tablet_pad->surface_destroy.notify = handle_pad_tablet_surface_destroy;
         wl_signal_add(&surface->events.destroy, &tablet_pad->surface_destroy);
 }