Simplify preview toggle

lua/symbols-outline.lua

@@ -32,7 +32,7 @@ end
 local function setup_buffer_autocmd()
     if config.options.auto_preview then
         vim.cmd(
-            "au CursorHold <buffer> lua require'symbols-outline.preview'.show(true)")
+            "au CursorHold <buffer> lua require'symbols-outline.preview'.show()")
     else
         vim.cmd(
             "au CursorMoved <buffer> lua require'symbols-outline.preview'.close()")

lua/symbols-outline/preview.lua

@@ -186,16 +186,12 @@ local function show_hover()
     end
 end
 
-function M.show(force)
+function M.show()
     if not is_current_win_outline() or
         #vim.api.nvim_list_wins() < 2 then
         return
     end
 
-    if force ~= true and state.preview_win ~= nil then
-        return 1
-    end
-
     show_preview()
     show_hover()
 end
@@ -214,9 +210,10 @@ function M.close()
 end
 
 function M.toggle()
-    local code = M.show()
-    if code == 1 then
+    if state.preview_win ~= nil then
         M.close()
+    else
+        M.show()
     end
 end