refactor(dossier): move dossier submit action in to a new form

app/javascript/controllers/autosave_submit_controller.ts

@@ -0,0 +1,61 @@
+import { isButtonElement } from '@utils';
+
+import { ApplicationController } from './application_controller';
+
+export class AutosaveSubmitController extends ApplicationController {
+  #isSaving = false;
+  #shouldSubmit = true;
+  #buttonText?: string;
+
+  connect(): void {
+    this.onGlobal('autosave:enqueue', () => this.didEnqueue());
+    this.onGlobal('autosave:end', () => this.didSucceed());
+    this.onGlobal('autosave:error', () => this.didFail());
+    this.on('click', (event) => this.onClick(event));
+  }
+
+  // Intercept form submit if autosave is still in progress
+  private onClick(event: Event) {
+    if (this.#isSaving) {
+      this.#shouldSubmit = true;
+      this.disableButton();
+      event.preventDefault();
+    }
+  }
+
+  private didEnqueue() {
+    this.#isSaving = true;
+    this.#shouldSubmit = false;
+  }
+
+  // If submit was previously requested, send it, now that autosave have finished
+  private didSucceed() {
+    if (this.#shouldSubmit && isButtonElement(this.element)) {
+      this.element.form?.requestSubmit(this.element);
+    }
+    this.#isSaving = false;
+    this.#shouldSubmit = false;
+    this.enableButton();
+  }
+
+  private didFail() {
+    this.#isSaving = false;
+    this.#shouldSubmit = false;
+    this.enableButton();
+  }
+
+  private disableButton() {
+    if (isButtonElement(this.element)) {
+      this.#buttonText = this.element.value;
+      this.element.value = this.element.dataset.disableWith ?? '';
+      this.element.disabled = true;
+    }
+  }
+
+  private enableButton() {
+    if (isButtonElement(this.element) && this.#buttonText) {
+      this.element.value = this.#buttonText;
+      this.element.disabled = false;
+    }
+  }
+}

app/javascript/shared/utils.ts

@@ -277,6 +277,16 @@ export function isNumeric(s: string) {
   return !isNaN(n) && isFinite(n);
 }
 
+export function isButtonElement(
+  element: Element
+): element is HTMLButtonElement {
+  return (
+    element.tagName == 'BUTTON' ||
+    (element.tagName == 'INPUT' &&
+      (element as HTMLInputElement).type == 'submit')
+  );
+}
+
 export function isSelectElement(
   element: HTMLElement
 ): element is HTMLSelectElement {

app/views/shared/dossiers/_edit.html.haml

@@ -53,12 +53,11 @@
         = render partial: 'shared/dossiers/autosave', locals: { dossier: dossier }
 
         - if dossier.can_transition_to_en_construction?
-            = f.button t('views.shared.dossiers.edit.submit_dossier'),
-              name: :submit_draft,
-              value: true,
+          = button_to t('views.shared.dossiers.edit.submit_dossier'), brouillon_dossier_url(dossier),
             class: 'fr-btn fr-btn--sm',
             disabled: !current_user.owns?(dossier),
-              data: { 'disable-with': "Envoi en cours…" }
+            method: :post,
+            data: { 'disable-with': "Envoi en cours…", controller: 'autosave-submit' }
 
       - if dossier.brouillon? && !current_user.owns?(dossier)
         .send-notice.invite-cannot-submit