ipc: add support for output event

For compatibility with i3 [1].

[1]: https://i3wm.org/docs/ipc.html#_output_event

1 files changed, 14 insertions, 0 deletions

diff --git a/sway/ipc-server.c b/sway/ipc-server.c
index 51244436..2941ee76 100644
--- a/sway/ipc-server.c
+++ b/sway/ipc-server.c
@@ -508,6 +508,20 @@ void ipc_event_input(const char *change, struct sway_input_device *device) {
         json_object_put(json);
 }
 
+void ipc_event_output(void) {
+        if (!ipc_has_event_listeners(IPC_EVENT_OUTPUT)) {
+                return;
+        }
+        sway_log(SWAY_DEBUG, "Sending output event");
+
+        json_object *json = json_object_new_object();
+        json_object_object_add(json, "change", json_object_new_string("unspecified"));
+
+        const char *json_string = json_object_to_json_string(json);
+        ipc_send_event(json_string, IPC_EVENT_OUTPUT);
+        json_object_put(json);
+}
+
 int ipc_client_handle_writable(int client_fd, uint32_t mask, void *data) {
         struct ipc_client *client = data;