feat(ui_client): implement async paste handling

src/nvim/tui/input.c

@@ -126,8 +126,16 @@ static void tinput_wait_enqueue(void **argv)
  const String keys = { .data = buf, .size = len };
  if (input->paste) {
  String copy = copy_string(keys);
- multiqueue_put(main_loop.events, tinput_paste_event, 3,
- copy.data, copy.size, (intptr_t)input->paste);
+ if (ui_client_channel_id) {
+ Array args = ARRAY_DICT_INIT;
+ ADD(args, STRING_OBJ(copy_string(keys))); // 'data'
+ ADD(args, BOOLEAN_OBJ(true)); // 'crlf'
+ ADD(args, INTEGER_OBJ(input->paste)); // 'phase'
+ rpc_send_event(ui_client_channel_id, "nvim_paste", args);
+ } else {
+ multiqueue_put(main_loop.events, tinput_paste_event, 3,
+ copy.data, copy.size, (intptr_t)input->paste);
+ }
  if (input->paste == 1) {
  // Paste phase: "continue"
  input->paste = 2;

src/nvim/ui_client.c

@@ -52,8 +52,6 @@ void ui_client_init(uint64_t chan)
 
 /// Handler for "redraw" events sent by the NVIM server
 ///
-/// This is just a stub. The mentioned functionality will be implemented.
-///
 /// This function will be called by handle_request (in msgpack_rpc/channel.c)
 /// The individual ui_events sent by the server are individually handled
 /// by their respective handlers defined in ui_events_client.generated.h