refactor(turbo): simplify custom actions implementation now that turbo has support for it

app/helpers/turbo_stream_helper.rb

@@ -4,50 +4,70 @@ module TurboStreamHelper
   end
 
   class TagBuilder < Turbo::Streams::TagBuilder
-    def dispatch(type, detail = {})
-      append_all('turbo-events', partial: 'layouts/turbo_event', locals: { type: type, detail: detail })
-    end
+    include ActionView::Helpers::TagHelper
 
     def show(target, delay: nil)
-      dispatch('dom:mutation', { action: :show, target: target, delay: delay }.compact)
+      turbo_stream_simple_action_tag :show, target: target, delay: delay
     end
 
     def show_all(targets, delay: nil)
-      dispatch('dom:mutation', { action: :show, targets: targets, delay: delay }.compact)
+      turbo_stream_simple_action_tag :show, targets: targets, delay: delay
     end
 
     def hide(target, delay: nil)
-      dispatch('dom:mutation', { action: :hide, target: target, delay: delay }.compact)
+      turbo_stream_simple_action_tag :hide, target: target, delay: delay
     end
 
     def hide_all(targets, delay: nil)
-      dispatch('dom:mutation', { action: :hide, targets: targets, delay: delay }.compact)
+      turbo_stream_simple_action_tag :hide, targets: targets, delay: delay
     end
 
     def focus(target)
-      dispatch('dom:mutation', { action: :focus, target: target })
+      turbo_stream_simple_action_tag :focus, target: target
     end
 
     def focus_all(targets)
-      dispatch('dom:mutation', { action: :focus, targets: targets })
-    end
-
-    def disable(target)
-      dispatch('dom:mutation', { action: :disable, target: target })
+      turbo_stream_simple_action_tag :focus, targets: targets
     end
 
     def enable(target)
-      dispatch('dom:mutation', { action: :enable, target: target })
+      turbo_stream_simple_action_tag :enable, target: target
+    end
+
+    def enable_all(targets)
+      turbo_stream_simple_action_tag :enable, targets: targets
+    end
+
+    def disable(target)
+      turbo_stream_simple_action_tag :disable, target: target
+    end
+
+    def disable_all(targets)
+      turbo_stream_simple_action_tag :disable, targets: targets
     end
 
     def morph(target, content = nil, **rendering, &block)
-      template = render_template(target, content, allow_inferred_rendering: true, **rendering, &block)
-      dispatch('dom:mutation', { action: :morph, target: target, html: template })
+      action :morph, target, content, **rendering, &block
     end
 
     def morph_all(targets, content = nil, **rendering, &block)
-      template = render_template(targets, content, allow_inferred_rendering: true, **rendering, &block)
-      dispatch('dom:mutation', { action: :morph, targets: targets, html: template })
+      action_all :morph, targets, content, **rendering, &block
+    end
+
+    def dispatch(type, detail = {})
+      turbo_stream_simple_action_tag(:dispatch, 'event-type': type, 'event-detail': detail.to_json)
+    end
+
+    private
+
+    def turbo_stream_simple_action_tag(action, target: nil, targets: nil, **attributes)
+      if (target = convert_to_turbo_stream_dom_id(target))
+        tag.turbo_stream('', **attributes.merge(action: action, target: target))
+      elsif (targets = convert_to_turbo_stream_dom_id(targets, include_selector: true))
+        tag.turbo_stream('', **attributes.merge(action: action, targets: targets))
+      else
+        tag.turbo_stream('', **attributes.merge(action: action))
+      end
     end
   end
 end

app/javascript/controllers/turbo_event_controller.ts

@@ -1,134 +0,0 @@
-import invariant from 'tiny-invariant';
-import { z } from 'zod';
-import morphdom from 'morphdom';
-
-import { ApplicationController, Detail } from './application_controller';
-
-export class TurboEventController extends ApplicationController {
-  static values = {
-    type: String,
-    detail: Object
-  };
-
-  declare readonly typeValue: string;
-  declare readonly detailValue: Detail;
-
-  connect(): void {
-    this.globalDispatch(this.typeValue, this.detailValue);
-    this.element.remove();
-  }
-}
-
-const MutationAction = z.enum([
-  'show',
-  'hide',
-  'focus',
-  'enable',
-  'disable',
-  'morph'
-]);
-type MutationAction = z.infer<typeof MutationAction>;
-const Mutation = z.union([
-  z.object({
-    action: MutationAction,
-    delay: z.number().optional(),
-    target: z.string(),
-    html: z.string().optional()
-  }),
-  z.object({
-    action: MutationAction,
-    delay: z.number().optional(),
-    targets: z.string(),
-    html: z.string().optional()
-  })
-]);
-type Mutation = z.infer<typeof Mutation>;
-
-addEventListener('dom:mutation', (event) => {
-  const detail = (event as CustomEvent).detail;
-  const mutation = Mutation.parse(detail);
-  mutate(mutation);
-});
-
-const Mutations: Record<MutationAction, (mutation: Mutation) => void> = {
-  hide: (mutation) => {
-    for (const element of findElements(mutation)) {
-      element.classList.add('hidden');
-    }
-  },
-  show: (mutation) => {
-    for (const element of findElements(mutation)) {
-      element.classList.remove('hidden');
-    }
-  },
-  focus: (mutation) => {
-    for (const element of findElements(mutation)) {
-      element.focus();
-    }
-  },
-  disable: (mutation) => {
-    for (const element of findElements<HTMLInputElement>(mutation)) {
-      element.disabled = true;
-    }
-  },
-  enable: (mutation) => {
-    for (const element of findElements<HTMLInputElement>(mutation)) {
-      element.disabled = false;
-    }
-  },
-  morph: (mutation) => {
-    invariant(mutation.html, 'morph action requires html');
-    for (const element of findElements<HTMLInputElement>(mutation)) {
-      morphdom(element, mutation.html, {
-        onBeforeElUpdated(fromEl, toEl) {
-          if (isTouchedInput(fromEl)) {
-            fromEl.removeAttribute('data-touched');
-            mergeInputValue(
-              fromEl as HTMLInputElement,
-              toEl as HTMLInputElement
-            );
-          }
-          if (fromEl.isEqualNode(toEl)) {
-            return false;
-          }
-          return true;
-        }
-      });
-    }
-  }
-};
-
-function mergeInputValue(fromEl: HTMLInputElement, toEl: HTMLInputElement) {
-  toEl.value = fromEl.value;
-  toEl.checked = fromEl.checked;
-}
-
-function isTouchedInput(element: HTMLElement): boolean {
-  return (
-    ['INPUT', 'TEXTAREA', 'SELECT'].includes(element.tagName) &&
-    !!element.getAttribute('data-touched')
-  );
-}
-
-function mutate(mutation: Mutation) {
-  const fn = Mutations[mutation.action];
-  invariant(fn, `Could not find mutation ${mutation.action}`);
-  if (mutation.delay) {
-    setTimeout(() => fn(mutation), mutation.delay);
-  } else {
-    fn(mutation);
-  }
-}
-
-function findElements<Element extends HTMLElement = HTMLElement>(
-  mutation: Mutation
-): Element[] {
-  if ('target' in mutation) {
-    const element = document.querySelector<Element>(`#${mutation.target}`);
-    invariant(element, `Could not find element with id ${mutation.target}`);
-    return [element];
-  } else if ('targets' in mutation) {
-    return [...document.querySelectorAll<Element>(mutation.targets)];
-  }
-  invariant(false, 'Could not find element');
-}

app/javascript/entrypoints/application.js

@@ -4,6 +4,7 @@ import * as Turbo from '@hotwired/turbo';
 import { Application } from '@hotwired/stimulus';
 import '@gouvfr/dsfr/dist/dsfr.module.js';
 
+import '../shared/turbo-actions';
 import '../shared/activestorage/ujs';
 import '../shared/safari-11-empty-file-workaround';
 import '../shared/toggle-target';

app/javascript/shared/turbo-actions.ts

@@ -0,0 +1,83 @@
+import { StreamActions, TurboStreamAction } from '@hotwired/turbo';
+import morphdom from 'morphdom';
+
+const hide: TurboStreamAction = function () {
+  this.targetElements.forEach((element: Element) => {
+    const delay = element.getAttribute('delay');
+    const hide = () => element.classList.add('hidden');
+    if (delay) {
+      setTimeout(hide, parseInt(delay, 10));
+    } else {
+      hide();
+    }
+  });
+};
+const show: TurboStreamAction = function () {
+  this.targetElements.forEach((element: Element) => {
+    const delay = element.getAttribute('delay');
+    const show = () => element.classList.remove('hidden');
+    if (delay) {
+      setTimeout(show, parseInt(delay, 10));
+    } else {
+      show();
+    }
+  });
+};
+const focus: TurboStreamAction = function () {
+  this.targetElements.forEach((element: HTMLInputElement) => element.focus());
+};
+const disable: TurboStreamAction = function () {
+  this.targetElements.forEach((element: HTMLInputElement) => {
+    element.disabled = true;
+  });
+};
+const enable: TurboStreamAction = function () {
+  this.targetElements.forEach((element: HTMLInputElement) => {
+    element.disabled = false;
+  });
+};
+const morph: TurboStreamAction = function () {
+  this.targetElements.forEach((element: Element) => {
+    morphdom(element, this.templateContent, {
+      onBeforeElUpdated(fromEl, toEl) {
+        if (isTouchedInput(fromEl)) {
+          fromEl.removeAttribute('data-touched');
+          mergeInputValue(fromEl as HTMLInputElement, toEl as HTMLInputElement);
+        }
+        if (fromEl.isEqualNode(toEl)) {
+          return false;
+        }
+        return true;
+      }
+    });
+  });
+};
+const dispatch: TurboStreamAction = function () {
+  const type = this.getAttribute('event-type') ?? '';
+  const detail = this.getAttribute('event-detail');
+  const event = new CustomEvent(type, {
+    detail: JSON.parse(detail ?? '{}'),
+    bubbles: true
+  });
+  document.documentElement.dispatchEvent(event);
+};
+
+StreamActions['hide'] = hide;
+StreamActions['show'] = show;
+StreamActions['focus'] = focus;
+StreamActions['disable'] = disable;
+StreamActions['enable'] = enable;
+StreamActions['morph'] = morph;
+StreamActions['dispatch'] = dispatch;
+
+function mergeInputValue(fromEl: HTMLInputElement, toEl: HTMLInputElement) {
+  toEl.value = fromEl.value;
+  toEl.checked = fromEl.checked;
+}
+
+function isTouchedInput(element: HTMLElement): boolean {
+  return (
+    ['INPUT', 'TEXTAREA', 'SELECT'].includes(element.tagName) &&
+    !!element.getAttribute('data-touched')
+  );
+}

app/views/layouts/_turbo_event.html.haml

@@ -1,5 +0,0 @@
-%turbo-event{ data: {
-  controller: 'turbo-event',
-  turbo_event_type_value: type,
-  turbo_event_detail_value: detail.to_json
-} }

app/views/layouts/application.html.haml

@@ -57,13 +57,3 @@
       - if Rails.env.development?
         = vite_typescript_tag 'axe-core'
       = yield :charts_js
-
-    // Container for custom turbo-stream actions
-    %turbo-events
-
-    // We patch `@hotwired/turbo` to attach forms generated from links to this
-    // container instead of the body to avoid conflicts with `@rails/ujs`. We also
-    // patch `@hotwired/turbo` to add a timeout before removing the form because in
-    // order to be accepted as a valid `turbo form`` either global `turbo drive`` should
-    // be enabled or the form needs to have a parent with `data-turbo="true"` on it.
-    %div{ 'data-turbo': 'true' }

package.json

@@ -4,7 +4,7 @@
     "@headlessui/react": "^1.6.6",
     "@heroicons/react": "^1.0.6",
     "@hotwired/stimulus": "^3.1.0",
-    "@hotwired/turbo": "^7.1.0",
+    "@hotwired/turbo": "^7.2.4",
     "@mapbox/mapbox-gl-draw": "^1.3.0",
     "@popperjs/core": "^2.11.6",
     "@rails/actiontext": "^6.0.5",

patches/@hotwired+turbo+7.1.0.patch

@@ -1,50 +0,0 @@
-diff --git a/node_modules/@hotwired/turbo/dist/turbo.es2017-esm.js b/node_modules/@hotwired/turbo/dist/turbo.es2017-esm.js
-index 963422f..a4113bf 100644
---- a/node_modules/@hotwired/turbo/dist/turbo.es2017-esm.js
-+++ b/node_modules/@hotwired/turbo/dist/turbo.es2017-esm.js
-@@ -2609,7 +2609,7 @@ class Session {
-         const linkMethod = link.getAttribute("data-turbo-method");
-         if (linkMethod) {
-             const form = document.createElement("form");
--            form.method = linkMethod;
-+            form.setAttribute('method', linkMethod);
-             form.action = link.getAttribute("href") || "undefined";
-             form.hidden = true;
-             if (link.hasAttribute("data-turbo-confirm")) {
-@@ -2621,9 +2621,9 @@ class Session {
-                 form.addEventListener("turbo:submit-start", () => form.remove());
-             }
-             else {
--                form.addEventListener("submit", () => form.remove());
-+                form.addEventListener("submit", () => setTimeout(() => form.remove(), 500));
-             }
--            document.body.appendChild(form);
-+            (document.querySelector('body > [data-turbo="true"]') || document.body).appendChild(form);
-             return dispatch("submit", { cancelable: true, target: form });
-         }
-         else {
-diff --git a/node_modules/@hotwired/turbo/dist/turbo.es2017-umd.js b/node_modules/@hotwired/turbo/dist/turbo.es2017-umd.js
-index 101db1f..7d9cda6 100644
---- a/node_modules/@hotwired/turbo/dist/turbo.es2017-umd.js
-+++ b/node_modules/@hotwired/turbo/dist/turbo.es2017-umd.js
-@@ -2615,7 +2615,7 @@ Copyright © 2021 Basecamp, LLC
-             const linkMethod = link.getAttribute("data-turbo-method");
-             if (linkMethod) {
-                 const form = document.createElement("form");
--                form.method = linkMethod;
-+                form.setAttribute('method', linkMethod);
-                 form.action = link.getAttribute("href") || "undefined";
-                 form.hidden = true;
-                 if (link.hasAttribute("data-turbo-confirm")) {
-@@ -2627,9 +2627,9 @@ Copyright © 2021 Basecamp, LLC
-                     form.addEventListener("turbo:submit-start", () => form.remove());
-                 }
-                 else {
--                    form.addEventListener("submit", () => form.remove());
-+                  form.addEventListener("submit", () => setTimeout(() => form.remove(), 500));
-                 }
--                document.body.appendChild(form);
-+                (document.querySelector('body > [data-turbo="true"]') || document.body).appendChild(form);
-                 return dispatch("submit", { cancelable: true, target: form });
-             }
-             else {

spec/controllers/champs/piece_justificative_controller_spec.rb

@@ -29,7 +29,7 @@ describe Champs::PieceJustificativeController, type: :controller do
       it 'renders the attachment template as Javascript' do
         subject
         expect(response.status).to eq(200)
-        expect(response.body).to include(""action":"morph","target":"#{champ.input_group_id}"")
+        expect(response.body).to include("<turbo-stream action=\"morph\" target=\"#{champ.input_group_id}\">")
       end
 
       it 'updates dossier.last_champ_updated_at' do

yarn.lock

@@ -349,10 +349,10 @@
   resolved "https://registry.yarnpkg.com/@hotwired/stimulus/-/stimulus-3.1.0.tgz#20215251e5afe6e0a3787285181ba1bfc9097df0"
   integrity sha512-iDMHUhiEJ1xFeicyHcZQQgBzhtk5mPR0QZO3L6wtqzMsJEk2TKECuCQTGKjm+KJTHVY0dKq1dOOAWvODjpd2Mg==
 
-"@hotwired/turbo@^7.1.0":
-  version "7.1.0"
-  resolved "https://registry.yarnpkg.com/@hotwired/turbo/-/turbo-7.1.0.tgz#27e44e0e3dc5bd1d4bda0766d579cf5a14091cd7"
-  integrity sha512-Q8kGjqwPqER+CtpQudbH+3Zgs2X4zb6pBAlr6NsKTXadg45pAOvxI9i4QpuHbwSzR2+x87HUm+rot9F/Pe8rxA==
+"@hotwired/turbo@^7.2.4":
+  version "7.2.4"
+  resolved "https://registry.yarnpkg.com/@hotwired/turbo/-/turbo-7.2.4.tgz#0d35541be32cfae3b4f78c6ab9138f5b21f28a21"
+  integrity sha512-c3xlOroHp/cCZHDOuLp6uzQYEbvXBUVaal0puXoGJ9M8L/KHwZ3hQozD4dVeSN9msHWLxxtmPT1TlCN7gFhj4w==
 
 "@humanwhocodes/config-array@^0.10.4":
   version "0.10.4"