launcher: support external launcher tokens

include/sway/server.h

@@ -114,6 +114,7 @@ struct sway_server {
 
 	struct wlr_xdg_activation_v1 *xdg_activation_v1;
 	struct wl_listener xdg_activation_v1_request_activate;
+	struct wl_listener xdg_activation_v1_new_token;
 
 	struct wl_list pending_launcher_ctxs; // launcher_ctx::link
 
@@ -175,6 +176,8 @@ void handle_xdg_decoration(struct wl_listener *listener, void *data);
 void handle_pointer_constraint(struct wl_listener *listener, void *data);
 void xdg_activation_v1_handle_request_activate(struct wl_listener *listener,
 	void *data);
+void xdg_activation_v1_handle_new_token(struct wl_listener *listener,
+	void *data);
 
 void set_rr_scheduling(void);
 

sway/server.c

@@ -225,6 +225,10 @@ bool server_init(struct sway_server *server) {
 		xdg_activation_v1_handle_request_activate;
 	wl_signal_add(&server->xdg_activation_v1->events.request_activate,
 		&server->xdg_activation_v1_request_activate);
+	server->xdg_activation_v1_new_token.notify =
+		xdg_activation_v1_handle_new_token;
+	wl_signal_add(&server->xdg_activation_v1->events.new_token,
+		&server->xdg_activation_v1_new_token);
 
 	wl_list_init(&server->pending_launcher_ctxs);
 

sway/xdg_activation_v1.c

@@ -1,6 +1,7 @@
 #include <wlr/types/wlr_xdg_activation_v1.h>
 #include "sway/desktop/launcher.h"
 #include "sway/tree/view.h"
+#include "sway/tree/workspace.h"
 
 void xdg_activation_v1_handle_request_activate(struct wl_listener *listener,
 		void *data) {
@@ -38,3 +39,15 @@ void xdg_activation_v1_handle_request_activate(struct wl_listener *listener,
 		view_request_activate(view, seat);
 	}
 }
+
+void xdg_activation_v1_handle_new_token(struct wl_listener *listener, void *data) {
+	struct wlr_xdg_activation_token_v1 *token = data;
+	struct sway_seat *seat = token->seat ? token->seat->data :
+		input_manager_current_seat();
+
+	struct sway_workspace *ws = seat_get_focused_workspace(seat);
+	if (ws) {
+		launcher_ctx_create(token, &ws->node);
+		return;
+	}
+}