From 9f30c87b5b687118f4e0c88249ca08ebad2f3003 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mat=C4=9Bj=20Cepl?= <mcepl@cepl.eu>
Date: Mon, 24 Feb 2025 18:59:10 +0100
Subject: feat: automatically enable spellchecking through local setting

When the local setting spellcheck.spelling_autoenable is set to
true and spelling is available (via `spelling_language` setting
in .editorconfig), vis will automatically enable spellchecker
without any additional user action.

References: https://github.com/editorconfig/specification/pull/41
---
 Readme.md      | 3 +++
 spellcheck.lua | 8 ++++++++
 2 files changed, 11 insertions(+)

diff --git a/Readme.md b/Readme.md
index f0c2865..e91b532 100644
--- a/Readme.md
+++ b/Readme.md
@@ -26,6 +26,9 @@ The module table returned from `require(...)` has some configuration options:
 	* default: `enchant -l -d %s` 
 * `default_lang`: The name of the used dictionary if the opened file does not specify one. The selected language is inserted in the cmd-strings at `%s`.
 	* default: `$LANG` or `en_US`
+* `spelling_autoenable`: Enable automatic enabling of spellchecker when spelling is available
+  (via `spelling_language` setting in .editorconfig) without any additional user action.
+	* default: `false`
 * `typo_style`: The style string with which misspellings should be highlighted when using the _full viewport_ method
 	* default: `fore:red`
 * `check_tokens`: A table mapping all token names we consider for spellchecking to true
diff --git a/spellcheck.lua b/spellcheck.lua
index 3737a3e..fd8d0fe 100644
--- a/spellcheck.lua
+++ b/spellcheck.lua
@@ -6,6 +6,8 @@ if not spellcheck.default_lang:match('^[a-z][a-z]_[A-Z][A-Z]$') then
   spellcheck.default_lang = 'en_US'
 end
 
+spellcheck.spelling_autoenable = false
+
 spellcheck.get_lang = function()
   if vis.win.file.spelling_language then
     return vis.win.file.spelling_language
@@ -304,6 +306,12 @@ vis:map(vis.modes.NORMAL, '<C-w>e', function()
   enable_spellcheck()
 end, 'Enable spellchecking in the current window')
 
+vis.events.subscribe(vis.events.WIN_OPEN, function(win)
+  if vis.win.file.spelling_language and spellcheck.spelling_autoenable then
+    enable_spellcheck()
+  end
+end)
+
 local disable_spellcheck = function()
   local old_lex_func = wrapped_lex_funcs[vis.win]
   if old_lex_func then
-- 
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