Quill.JS integration with Symfony project

layout_types.html.twig

{# File path in Symfony project : templates/form/layout_types.html.twig
Don't forget to add this file in symfony twig config inside section form_themes
#}

{%- block quill_textarea_row -%}
    {%- set row_attr = row_attr|merge({ class: row_attr.class|default(row_class|default('flex-1')) }) -%}
    {%- set widget_attr = {} -%}
    {%- if help is not empty -%}
        {%- set widget_attr = {attr: {'aria-describedby': id ~"_help"}} -%}
    {%- endif -%}
    <div
            class="relative flex-1"
            {% with {attr: row_attr} %}{{ block('attributes') }}{% endwith %}
            {{ stimulus_controller('forms--quill-textarea-type') }}
    >
        {{- form_label(form) -}}
        {{- form_widget(form, widget_attr) -}}
        <div {{ stimulus_target('forms--quill-textarea-type', 'editor') }}></div>
        {{- form_errors(form) -}}
        {{- form_help(form) -}}
    </div>
{% endblock %}

NotesType.php

<?php

// File path in Symfony project : src/Form/NotesType.php

namespace App\Form;

use App\Form\Type\QuillTextareaType;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;

class NotesType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options): void
    {
        $builder
            ->add('personalNote', QuillTextareaType::class, [
                'label' => false,
                'required' => false,
            ])
        ;
    }
  
    ...
}

quill-textarea-type_controller.ts

// File path in Symfony project : assets/controllers/forms/quill-textarea-type_controller.ts

import {Controller} from '@hotwired/stimulus';
import Quill, {QuillOptions} from 'quill';

export default class extends Controller<HTMLDivElement> {
    private editor: Quill;

    static targets = [ "editor", "input" ]

    declare readonly editorTarget: HTMLDivElement
    declare readonly inputTarget: HTMLInputElement

    connect() {
        this.editor = new Quill(this.editorTarget, this.quillOption());

        let value = this.inputTarget.value;
        console.debug(value);

        this.editor.setContents(this.editor.clipboard.convert({
            html: value
        }));

        this.editor.on('text-change', this.onQuilTextChange);
    }

    disconnect() {
        this.editor.off('text-change', this.onQuilTextChange);
    }

    private onQuilTextChange = () => {
        this.inputTarget.value = this.editor.root.innerHTML;
    }

    private quillOption = (): QuillOptions => {
        return {
            modules: {
                toolbar: [
                    [{ 'header': 1 }, { 'header': 2 }],
                    ['bold', 'italic', 'underline', 'strike'],
                    [{ 'list': 'ordered'}, { 'list': 'bullet' }],
                    [{ 'color': [] }, { 'background': [] }],
                    ['link'],
                    ['clean']
                ]
            },
            placeholder: 'Ajouter des notes personelles ici. Ces notes ne sont visible que par vous.',
            readOnly: false,
            theme: 'snow',
        }
    }
}

QuillTextareaType.php

<?php

// File path in Symfony project : src/Form/Type/QuillTextareaType.php

namespace App\Form\Type;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\Extension\Core\Type\TextareaType;
use Symfony\Component\OptionsResolver\OptionsResolver;

class QuillTextareaType extends AbstractType
{
    public function configureOptions(OptionsResolver $resolver): void
    {
        $resolver->setDefaults([
            'attr' => [
                'class' => 'input-hidden-accessible',
                'data-forms--quill-textarea-type-target' => 'input',
            ],
        ]);
    }

    public function getParent(): string
    {
        return TextareaType::class;
    }

    public function getBlockPrefix(): string
    {
        return 'quill_textarea';
    }
}

Thanks for sharing, very helpful!