nested dialog functionality

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v1
         with:
-          node-version: 10.x
+          node-version: 14.17.2
 
       - uses: actions/cache@v2
         with:

addon/components/dialog.hbs

@@ -7,8 +7,10 @@
         aria-modal='true'
         ...attributes
         {{focus-trap focusTrapOptions=(hash initialFocus=@initialFocus)}}
-        {{click-outside @onClose event='mouseup'}}
-        {{this.handleEscapeKey @isOpen @onClose}}
+        {{click-outside this.onClose event='mouseup'}}
+        {{this.handleEscapeKey @isOpen this.onClose}}
+        {{did-insert (fn this.stackProvider.push this)}}
+        {{will-destroy (fn this.stackProvider.pop this)}}
       >
         {{yield
           (hash

addon/components/dialog.js

@@ -6,6 +6,8 @@ import { getOwnConfig } from '@embroider/macros';
 import { modifier } from 'ember-modifier';
 
 import { Keys } from 'ember-headlessui/utils/keyboard';
+import { action } from '@ember/object';
+import { inject as service } from '@ember/service';
 
 function getPortalRoot() {
   const { rootElement } = getOwnConfig();
@@ -15,6 +17,9 @@ function getPortalRoot() {
 }
 
 export default class DialogComponent extends Component {
+  @service
+  stackProvider;
+
   DEFAULT_TAG_NAME = 'div';
 
   guid = `${guidFor(this)}-headlessui-dialog`;
@@ -88,4 +93,10 @@ export default class DialogComponent extends Component {
   get descriptionGuid() {
     return `${this.guid}-description`;
   }
+
+  @action
+  onClose() {
+    if (this.stackProvider.hasOpenChild(this)) return;
+    this.args.onClose();
+  }
 }

addon/services/stack-provider.js

@@ -0,0 +1,22 @@
+import Service from '@ember/service';
+import { action } from '@ember/object';
+
+export default class StackProviderService extends Service {
+  stack = [];
+
+  @action
+  hasOpenChild(dialog) {
+    return this.stack[this.stack.length - 1] !== dialog.guid;
+  }
+
+  @action
+  remove(dialog) {
+    let ix = this.stack.findIndex((guid) => guid === dialog.guid);
+    this.stack.splice(ix, 1);
+  }
+
+  @action
+  push(dialog) {
+    this.stack.push(dialog.guid);
+  }
+}

app/services/stack-provider.js

@@ -0,0 +1 @@
+export { default } from 'ember-headlessui/services/stack-provider';

package.json

@@ -44,6 +44,8 @@
     "@glimmer/component": "^1.0.4",
     "@glimmer/tracking": "^1.0.4",
     "@tailwindcss/ui": "^0.6.0",
+    "@testing-library/dom": "^8.1.0",
+    "@testing-library/user-event": "^13.1.9",
     "babel-eslint": "^10.1.0",
     "broccoli-asset-rev": "^3.0.0",
     "dotenv-cli": "^4.0.0",

tests/accessibility-assertions.js

@@ -4,6 +4,10 @@ function getDialog() {
   return document.querySelector('[role="dialog"]');
 }
 
+function getDialogs() {
+  return Array.from(document.querySelectorAll('[role="dialog"]'));
+}
+
 function getDialogOverlay() {
   return document.querySelector('[id$="-headlessui-dialog-overlay"]');
 }
@@ -16,6 +20,12 @@ function getDialogDescription() {
   return document.querySelector('[id$="-headlessui-dialog-description"]');
 }
 
+function getDialogOverlays() {
+  return Array.from(
+    document.querySelectorAll('[id$="-headlessui-dialog-overlay"]')
+  );
+}
+
 const DialogState = {
   /** The dialog is visible to the user. */
   Visible: 'Visible',
@@ -31,14 +41,15 @@ function assertNever(x) {
   throw new Error('Unexpected object: ' + x);
 }
 
-function assertActiveElement(element) {
+function assertActiveElement(element, comment) {
   try {
     if (element === null) {
       Qunit.assert.notEqual(element, null);
       return;
     }
-
-    Qunit.assert.equal(document.activeElement, element);
+    return Qunit.assert.waitFor(() => {
+      Qunit.assert.equal(document.activeElement, element, comment);
+    });
   } catch (err) {
     Error.captureStackTrace(err, assertActiveElement);
     throw err;
@@ -523,7 +534,9 @@ export {
   assertDialogOverlay,
   assertDialogTitle,
   getDialog,
+  getDialogs,
   getDialogOverlay,
+  getDialogOverlays,
   assertActiveElement,
   getByText,
 };

tests/dummy/app/components/dialogs/nested.hbs

@@ -0,0 +1,49 @@
+{{#let (hash value=false) as |childState|}}
+  <Dialog
+    class='fixed inset-0 z-10 overflow-y-auto'
+    @as='div'
+    @isOpen={{@isOpen}}
+    @onClose={{@onClose}}
+    as |dialog|
+  >
+    <div
+      class='flex items-end justify-center min-h-screen px-4 pt-4 pb-20 text-center sm:block sm:p-0'
+    >
+      <dialog.Overlay class='fixed inset-0' />
+
+      <div
+        class='inline-block px-4 pt-5 pb-4 overflow-hidden text-left align-bottom bg-white rounded-lg shadow-xl transform transition-all sm:my-{{mult
+            8
+            @level
+          }}
+          sm:align-middle sm:max-w-sm sm:w-full sm:p-6 sm:ml-{{mult 8 @level}}'
+      >
+
+        <div class='mt-3 text-center sm:mt-5'>
+          <p>Level: {{@level}}</p>
+          <button
+            type='button'
+            class='inline-flex items-center px-4 py-2 text-base font-medium text-white bg-indigo-600 border border-transparent rounded-md shadow-sm hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500'
+            {{on 'click' (set childState.value true)}}
+          >Open {{inc @level}} a</button>
+          <button
+            type='button'
+            class='inline-flex items-center px-4 py-2 text-base font-medium text-white bg-indigo-600 border border-transparent rounded-md shadow-sm hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500'
+            {{on 'click' (set childState.value true)}}
+          >Open {{inc @level}} b</button>
+          <button
+            type='button'
+            class='inline-flex items-center px-4 py-2 text-base font-medium text-white bg-indigo-600 border border-transparent rounded-md shadow-sm hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500'
+            {{on 'click' (set childState.value true)}}
+          >Open {{inc @level}} c</button>
+        </div>
+
+      </div>
+    </div>
+    <Dialogs::Nested
+      @isOpen={{childState.value}}
+      @onClose={{set childState.value false}}
+      @level={{inc @level}}
+    />
+  </Dialog>
+{{/let}}

tests/dummy/app/helpers/inc.js

@@ -0,0 +1,5 @@
+import { helper } from '@ember/component/helper';
+
+export default helper(function inc([value] /*, hash*/) {
+  return value + 1;
+});

tests/dummy/app/helpers/mult.js

@@ -0,0 +1,5 @@
+import { helper } from '@ember/component/helper';
+
+export default helper(function mult([first, second] /*, hash*/) {
+  return first * second;
+});

tests/dummy/app/router.js

@@ -22,5 +22,6 @@ Router.map(function () {
   this.route('dialog', function () {
     this.route('dialog-modal');
     this.route('dialog-slide-over');
+    this.route('dialog-nested');
   });
 });

tests/dummy/app/templates/dialog/dialog-nested.hbs

@@ -0,0 +1,16 @@
+<div class='flex items-start justify-center w-screen h-full p-12 bg-gray-50'>
+  {{#let (hash value=false) as |state|}}
+    <button
+      type='button'
+      class='inline-flex items-center px-4 py-2 text-base font-medium text-white bg-indigo-600 border border-transparent rounded-md shadow-sm hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500'
+      {{on 'click' (set state.value true)}}
+    >
+      open 1
+    </button>
+    <Dialogs::Nested
+      @isOpen={{state.value}}
+      @onClose={{set state.value false}}
+      @level={{1}}
+    />
+  {{/let}}
+</div>

tests/dummy/app/templates/index.hbs

@@ -42,6 +42,9 @@
           <li>
             <LinkTo @route='dialog.dialog-slide-over'>Dialog (slide over)</LinkTo>
           </li>
+          <li>
+            <LinkTo @route='dialog.dialog-nested'>Dialog (nested)</LinkTo>
+          </li>
         </ul>
       </li>
     </ul>