Using ActionText without webpack - ruby-on-rails

Question

I try to implement ActionTest with old way asset pipeline (without Webpack) on rails 6
Almost all is good, except loading of #rails/actiontext
in my application.js I've
//= require trix
//= require #rails/actiontext
The riche editor appear, I can change bold/italic text, but can't add image (not uploaded)
I've an JS error : Uncaught SyntaxError: Cannot use import statement outside a module
on line : import { AttachmentUpload } from "./attachment_upload" from attachment_uplaod.js in actiontext.
Any way to achieve this without webpack?
thanks

Answer 1

I don't know what will be the official way, but I did it this way as I'm waiting for an updated install generator:
Prerequisites
hotwire-rails
CSS
Copy the CSS file in your asset pipeline (https://github.com/basecamp/trix/tree/main/dist)
JS Libraries
In app/assets/javascripts/libraries create these two files
Updated content may be found on https://www.skypack.dev
// app/assets/javascripts/libraries/actiontext#6.1.4.js
export * from 'https://cdn.skypack.dev/pin/#rails/actiontext#v6.1.4-znF92tREya92yxvegJvq/mode=imports/optimized/#rails/actiontext.js';
export { default } from 'https://cdn.skypack.dev/pin/#rails/actiontext#v6.1.4-znF92tREya92yxvegJvq/mode=imports,min/optimized/#rails/actiontext.js';
// app/assets/javascripts/libraries/trix#1.3.1.js
export * from 'https://cdn.skypack.dev/pin/trix#v1.3.1-EGGvto9zyvcAYsikgQxN/mode=imports/optimized/trix.js';
export { default } from 'https://cdn.skypack.dev/pin/trix#v1.3.1-EGGvto9zyvcAYsikgQxN/mode=imports,min/optimized/trix.js';
Import through Stimulus
In app/assets/javascripts/controllers create this file
//app/assets/javascripts/controllers/trix_controller.js
import { Controller } from "stimulus"
export default class extends Controller {
connect() {
import("actiontext").catch(err => null)
import("trix").catch(err => null)
}
}
On pages where trix/action_text should be loaded, add a data-controller="trix" to the relevant div
And voilà !
https://github.com/rails/rails/issues/41221#issuecomment-871853505

Answer 2

Got Action Text working by copying the actiontext scripts into a custom file, and removing the imports and exports.
And second, you will need to require activestorage in your application.js to make use of DirectUpload.
application.js
//= require trix
//=# require #rails/actiontext
//= require activestorage
//= require actiontext
actiontext.js
// Copied from node_modules/#rails/actiontext/app/javascript/actiontext/attachment_upload.js
class AttachmentUpload {
constructor(attachment, element) {
this.attachment = attachment;
this.element = element;
// Requires `require activestorage` in application.js
this.directUpload = new ActiveStorage.DirectUpload(
attachment.file,
this.directUploadUrl,
this
);
}
start() {
this.directUpload.create(this.directUploadDidComplete.bind(this));
}
directUploadWillStoreFileWithXHR(xhr) {
xhr.upload.addEventListener("progress", event => {
const progress = (event.loaded / event.total) * 100;
this.attachment.setUploadProgress(progress);
});
}
directUploadDidComplete(error, attributes) {
if (error) {
throw new Error(`Direct upload failed: ${error}`);
}
this.attachment.setAttributes({
sgid: attributes.attachable_sgid,
url: this.createBlobUrl(attributes.signed_id, attributes.filename)
});
}
createBlobUrl(signedId, filename) {
return this.blobUrlTemplate
.replace(":signed_id", signedId)
.replace(":filename", encodeURIComponent(filename));
}
get directUploadUrl() {
return this.element.dataset.directUploadUrl;
}
get blobUrlTemplate() {
return this.element.dataset.blobUrlTemplate;
}
}
// Copied from node_modules/#rails/actiontext/app/javascript/actiontext/index.js
addEventListener("trix-attachment-add", event => {
const { attachment, target } = event;
if (attachment.file) {
const upload = new AttachmentUpload(attachment, target);
upload.start();
}
});
This still uses ES6 syntax, so if you want to support older browsers and aren't using Babel, you might want to rewrite or transpile this to ES5.