Add message for enabling/disabling automatic spellcheck (#342)

Author: Predelnik

include/PluginMsg.h

@@ -2,6 +2,7 @@
 
 #define DSPELLCHECK_SETLANG_MSG 1         // See DSpellCheckSetLangMsgInfo
 #define DSPELLCHECK_GETLANGUAGELIST_MSG 2 // See DSpellCheckGetLanguageListMsgInfo
+#define DSPELLCHECK_ENABLESPELLCHECK_MSG 3 // See DSpellCheckEnableSpellCheckMsgInfo
 
 // Set language to lang_name, if was_success non-zero, it will be set to true in case of success and fales in case of failure
 struct DSpellCheckSetLangMsgInfo {
@@ -14,3 +15,7 @@ struct DSpellCheckGetLanguageListMsgInfo {
   void (*language_callback)(void *payload, const wchar_t *lang_name);
   void *payload;
 };
+
+struct DSpellCheckEnableSpellCheckMsgInfo {
+  bool enabled;
+};

src/plugin/Plugin.cpp

@@ -907,6 +907,13 @@ bool process_internal_msg(const CommunicationInfo& communication_info) {
         }
       }
       return true;
+   case DSPELLCHECK_ENABLESPELLCHECK_MSG: {
+        if (const auto info = reinterpret_cast<DSpellCheckEnableSpellCheckMsgInfo *>(communication_info.info)) {
+          auto mut = settings->modify(SettingsModificationStyle::ignore_file_errors);
+          mut->data.auto_check_text = info->enabled;
+        }
+      }
+        return true;
   }
   return false;
 }