Update and move turbo_stream actions to separate file

Use CSS `visibility` instead of `display` for #show/#hide. Access data attributes through `dataset` property.
2026-10-17 03:14:35 +02:00
parent 4d86652247
commit f1578fad75
4 changed files with 106 additions and 110 deletions
@@ -0,0 +1,97 @@
+// Turbo Streams actions.
+
+const FORM_CONTROLS = ["BUTTON", "FIELDSET", "INPUT", "OPTGROUP", "OPTION", "SELECT",
+                       "TEXTAREA"]
+
+Object.assign(Turbo.StreamElement.prototype, {
+  disableElement(element) {
+    if (FORM_CONTROLS.includes(element.tagName)) {
+      element.setAttribute("disabled", "disabled")
+    } else {
+      element.setAttribute("aria-disabled", "true")
+      // NOTE: tabindex should not be disabled?
+      element.setAttribute("tabindex", "-1")
+    }
+  },
+
+  enableElement(element) {
+    if (FORM_CONTROLS.includes(element.tagName)) {
+      element.removeAttribute("disabled")
+    } else {
+      element.removeAttribute("aria-disabled")
+      // Assume 'tabindex' is not used explicitly, so removing it is safe.
+      element.removeAttribute("tabindex")
+    }
+  },
+
+  showElement(element) { element.style.visibility = "visible" }
+})
+
+Object.assign(Turbo.StreamActions, {
+  disable() {
+    this.targetElements.forEach((e) => { this.disableElement(e) })
+  },
+
+  enable() {
+    this.targetElements.forEach((e) => { this.enableElement(e) })
+  },
+
+  hide() {
+    this.targetElements.forEach((e) => { e.style.visibility = "collapse" })
+  },
+
+  show() {
+    this.targetElements.forEach((e) => { this.showElement(e) })
+  },
+
+  unselect() {
+    this.targetElements.forEach((e) => { e.checked = false; this.enableElement(e) })
+  },
+
+  validate_form() {
+    this.targetElements.forEach((form) => {
+      this.templateContent.querySelectorAll("span").forEach((span) => {
+        var control = document.querySelector(
+          `[form="${form.id}"][name="${span.dataset.name}"]`
+        )
+        control.setCustomValidity(span.textContent)
+        // Add event listener in capture phase to clear custom validity before
+        // `[oninput]` or any other bubble phase handler is invoked.
+        //   https://www.quirksmode.org/js/events_order.html
+        // TODO: keep invalidating current value whenever user re-enters it. Store
+        // invalid value and validation message in `[data-invalid-message/value]`
+        // and check input value on "input" event (below) (using `[pattern]` may not
+        // be suitable due to inability to customize validtion message; also
+        // pattern may be used for other, conflicting purposes).
+        // After user executes any other action (while form is open), remove `[data-]`
+        // attributes and custom validation, as value may no longer be invalid.
+        control.addEventListener(
+          "input",
+          function(event) { event.target.setCustomValidity("") },
+          {capture: true, once: true}
+        )
+      })
+      form.reportValidity()
+    })
+  },
+
+  close_form() {
+    this.targetElements.forEach((e) => {
+      // Move focus if there's no focus or focus inside form being closed.
+      const focused = document.activeElement
+      if (!focused || (focused == document.body) || e.contains(focused)) {
+        let nextForm = e.parentElement.querySelector(`#${e.id} ~ tr:has([autofocus])`)
+        nextForm ??= e.parentElement.querySelector("tr:has([autofocus])")
+        nextForm?.querySelector("[autofocus]").focus()
+      }
+      document.getElementById(e.dataset.form).remove()
+      if ('link' in e.dataset) {
+        this.enableElement(document.getElementById(e.dataset.link))
+      }
+      if ('hiddenRow' in e.dataset) {
+        this.showElement(document.getElementById(e.dataset.hiddenRow))
+      }
+      e.remove()
+    })
+  }
+})