optimize rename logic

lua/LspUI/rename/init.lua

@@ -13,7 +13,6 @@ local is_initialized = false
 -- init for the rename
 M.init = function()
 	if not config.options.rename.enable then
-		lib_notify.Info("rename is not enabled!")
 		return
 	end
 
@@ -32,17 +31,18 @@ end
 -- run of rename
 M.run = function()
 	if not config.options.rename.enable then
+		lib_notify.Info("rename is not enabled!")
 		return
 	end
 
-	local clients = util.get_clients()
+	local current_buffer = api.nvim_get_current_buf()
+	local clients = util.get_clients(current_buffer)
 	if clients == nil then
 		-- if no valid client, step into here
 		return
 	end
 
 	local current_win = api.nvim_get_current_win()
-	local current_buffer = api.nvim_get_current_buf()
 
 	local old_name = fn.expand("<cword>")
 
@@ -61,7 +61,7 @@ M.run = function()
 
 	local new_window_wrap = windows.new_window(new_buffer)
 
-	windows.set_width_window(new_window_wrap, 20)
+	windows.set_width_window(new_window_wrap, fn.strcharlen(old_name) + 3)
 	windows.set_height_window(new_window_wrap, 1)
 	windows.set_enter_window(new_window_wrap, true)
 	windows.set_anchor_window(new_window_wrap, "NW")

lua/LspUI/rename/util.lua

@@ -9,9 +9,11 @@ local lib_util = require("LspUI.lib.util")
 local M = {}
 
 -- get all valid clients of rename
+--- @param buffer_id integer
 --- @return table|nil clients array or nil
-M.get_clients = function()
-	local clients = lsp.get_clients({ method = rename_feature })
+M.get_clients = function(buffer_id)
+	-- note: we need get lsp clients attached to current buffer
+	local clients = lsp.get_clients({ bufnr = buffer_id, method = rename_feature })
 	return #clients == 0 and nil or clients
 end
 
@@ -54,6 +56,7 @@ M.do_rename = function(id, clients, buffer, position_param)
 	if not client then
 		return
 	end
+  -- TODO: client.supports_method is not listed by document
 	if client.supports_method(prepare_rename_feature) then
 		M.prepare_rename(
 			client,