Add ability to drive Commands from a Stimulus controller

Dockerfile

@@ -8,7 +8,7 @@ libjemalloc2 \
 sqlite3 \
 tzdata
 
-RUN curl -fsSL https://deb.nodesource.com/setup_16.x | bash -
+RUN curl -fsSL https://deb.nodesource.com/setup_18.x | bash -
 RUN apt-get -y --no-install-recommends install nodejs && \
 npm install -g npm@latest yarn
 

app/assets/builds/@turbo-boost/commands.metafile.json

@@ -1 +1 @@
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app/javascript/controllers/command_controller.js

@@ -0,0 +1,41 @@
+import schema from '../schema'
+import delegates from '../delegates'
+import { dispatch } from '../events'
+
+export default function createCommandController(BaseController) {
+  return class extends BaseController {
+    static values = { command: String, form: String }
+
+    invoke(event) {
+      event.preventDefault()
+
+      const element = this.formElement || this.element
+      this.assignCommand(element)
+
+      const eventDelegate = delegates.getRegisteredEventForElement(element)
+      element.addEventListener(eventDelegate.name, this.reset, { once: true })
+
+      if (eventDelegate.name === 'submit' && element.requestSubmit) return element.requestSubmit()
+
+      dispatch(registeredEvent.name, this.element, { detail: { sourceEvent } })
+    }
+
+    assignCommand(el) {
+      const originalCommand = el.getAttribute(schema.commandAttribute)
+      el.setAttribute(schema.commandAttribute, this.commandValue)
+      el.setAttribute(`${schema.commandAttribute}-original`, originalCommand)
+    }
+
+    reset(event) {
+      const el = event.target
+      setTimeout(() => {
+        el.setAttribute(schema.commandAttribute, el.getAttribute(`${schema.commandAttribute}-original`))
+        el.removeAttribute(`${schema.commandAttribute}-original`)
+      })
+    }
+
+    get formElement() {
+      return document.getElementById(this.formValue)
+    }
+  }
+}

app/javascript/delegates.js

@@ -25,6 +25,7 @@ function isRegisteredForElement(eventName, element) {
 
 export default {
   register,
+  getRegisteredEventForElement,
   isRegisteredForElement,
   get events() {
     return [...events]

app/javascript/index.js

@@ -12,6 +12,7 @@ import logger from './logger'
 import state from './state'
 import urls from './urls'
 import uuids from './uuids'
+import createCommandController from './controllers/command_controller'
 
 function buildCommandPayload(id, element) {
   return {
@@ -119,6 +120,7 @@ if (!self.TurboBoost.Commands) {
     confirmation,
     logger,
     schema,
+    createCommandController,
     events: commandEvents,
     registerEventDelegate: delegates.register,
     get eventDelegates() {

test/dummy/app/javascript/controllers/index.js

@@ -1,7 +1,11 @@
-import { Application } from '@hotwired/stimulus'
+import { Application, Controller } from '@hotwired/stimulus'
+import '@turbo-boost/commands'
 
 const application = Application.start()
 
+// TODO: consider moving registration into the library
+application.register('turbo-boost-command', TurboBoost.Commands.createCommandController(Controller))
+
 import ScrollIntoViewController from './controllers/scroll_into_view_controller'
 application.register('scroll-into-view', ScrollIntoViewController)