added custom options to 'register_ui_select'

lua/fzf-lua/providers/ui_select.lua

@@ -3,6 +3,7 @@ local utils = require "fzf-lua.utils"
 
 local M = {}
 
+local _opts = nil
 local _old_ui_select = nil
 
 M.deregister = function()
@@ -11,14 +12,16 @@ M.deregister = function()
   end
   vim.ui.select = _old_ui_select
   _old_ui_select = nil
+  _opts = nil
 end
 
-M.register = function()
+M.register = function(opts)
   if vim.ui.select == M.ui_select then
     -- already registered
     utils.info("vim.ui.select already registered to fzf-lua")
     return
   end
+  _opts = opts
   _old_ui_select = vim.ui.select
   vim.ui.select = M.ui_select
 end
@@ -53,14 +56,14 @@ M.ui_select = function(items, opts, on_choice)
         opts.format_item(e)))
   end
 
-  local o = {}
-  o.fzf_opts = {
+  _opts = _opts or {}
+  _opts.fzf_opts = {
     ['--no-multi']        = '',
     ['--prompt']          = opts.prompt:gsub(":$", "> "),
     ['--preview-window']  = 'hidden:right:0',
   }
 
-  core.fzf_wrap(o, entries, function(selected)
+  core.fzf_wrap(_opts, entries, function(selected)
 
     local idx = selected and tonumber(selected[1]:match("^(%d+).")) or nil
     on_choice(items[idx], idx)