Fix autorun when overriding the user preferred language

Introduced in #689

Author: sonnyp

src/Library/Library.js

@@ -6,7 +6,6 @@ import {
   demos_dir,
   getLanguage,
   settings as global_settings,
-  languages,
 } from "../util.js";
 import Window from "../window.js";
 
@@ -86,18 +85,16 @@ async function openDemo({ application, demo_name, language }) {
     session.settings.set_boolean("show-code", true);
   }
 
-  const code_languge = session.settings.get_int("code-language");
-  const lang = languages.find((lang) => lang.index === code_languge);
-
   // Override the user preferred language if the demo doesn't support it
+  const lang = session.getCodeLanguage();
   if (demo.languages.length > 0 && !demo.languages.includes(lang.id)) {
     session.settings.set_int(
       "code-language",
       getLanguage(demo.languages[0]).index,
     );
   }
 
-  const run = demo.autorun && lang.id === "javascript";
+  const run = demo.autorun && session.getCodeLanguage().id === "javascript";
   const { load } = Window({ application, session });
   await load({ run });
 }

src/sessions.js

@@ -10,6 +10,7 @@ import {
   rust_template_dir,
   settings as global_settings,
   encode,
+  languages,
 } from "./util.js";
 
 export const sessions_dir = data_dir.get_child("sessions");
@@ -142,9 +143,14 @@ export class Session {
     });
   }
 
-  is_project() {
+  isProject() {
     return !this.file.get_parent().equal(sessions_dir);
   }
+
+  getCodeLanguage() {
+    const code_languge = this.settings.get_int("code-language");
+    return languages.find((lang) => lang.index === code_languge);
+  }
 }
 
 function migrateStateToSession() {

src/window.js

@@ -463,7 +463,7 @@ async function setGtk4PreferDark(dark) {
 }
 
 async function onCloseSession({ session, window }) {
-  if (session.is_project()) {
+  if (session.isProject()) {
     window.destroy();
     return;
   }