Method onLanguageChange

static/panes/editor.ts:1875–1903

(newLangId: LanguageKey, firstTime?: boolean)

    }

    onLanguageChange(newLangId: LanguageKey, firstTime?: boolean): void {
        const languages = languagesService.getLanguagesOrFail();
        if (newLangId in languages) {
            if (firstTime || newLangId !== this.currentLanguage?.id) {
                const oldLangId = this.currentLanguage?.id;
                this.currentLanguage = languages[newLangId];
                if (!this.waitingForLanguage && !this.settings.keepSourcesOnLangChange && newLangId !== 'cmake') {
                    this.editorSourceByLang[oldLangId ?? ''] = this.getSource();
                    this.updateEditorCode();
                }
                this.initLoadSaver();
                const editorModel = this.editor.getModel();
                if (editorModel && this.currentLanguage)
                    monaco.editor.setModelLanguage(editorModel, this.currentLanguage.monaco);
                this.isCpp.set(this.currentLanguage?.id === 'c++');
                this.isClean.set(this.currentLanguage?.id === 'clean');
                this.updateLanguageTooltip();
                this.updateTitle();
                this.updateState();
                // Broadcast the change to other panels
                this.eventHub.emit('languageChange', this.id, newLangId);
                this.decorations = {};
                if (!firstTime) {
                    this.maybeEmitChange(true);
                }
            }
            this.waitingForLanguage = false;
        }
    }

    override getDefaultPaneName(): string {
        return 'Editor';