fix: do not close dialog when closing popover on Escape

integration/package.json

@@ -34,6 +34,7 @@
     "@vaadin/overlay": "24.5.0-alpha0",
     "@vaadin/password-field": "24.5.0-alpha0",
     "@vaadin/polymer-legacy-adapter": "24.5.0-alpha0",
+    "@vaadin/popover": "24.5.0-alpha0",
     "@vaadin/radio-group": "24.5.0-alpha0",
     "@vaadin/select": "24.5.0-alpha0",
     "@vaadin/tabs": "24.5.0-alpha0",

integration/tests/dialog-popover.test.js

@@ -0,0 +1,73 @@
+import { expect } from '@esm-bundle/chai';
+import { fixtureSync, nextFrame, nextRender, nextUpdate } from '@vaadin/testing-helpers';
+import { sendKeys } from '@web/test-runner-commands';
+import './not-animated-styles.js';
+import '@vaadin/dialog';
+import '@vaadin/popover';
+
+describe('popover in dialog', () => {
+  let dialog, popover, button, overlay;
+
+  beforeEach(async () => {
+    dialog = fixtureSync('<vaadin-dialog></vaadin-dialog>');
+    dialog.renderer = (root) => {
+      if (!root.firstChild) {
+        const button = document.createElement('button');
+        button.textContent = 'Open popover';
+        root.append(button);
+
+        const popover = document.createElement('vaadin-popover');
+        popover.renderer = (root2) => {
+          if (!root2.firstChild) {
+            const button2 = document.createElement('button');
+            button2.textContent = 'Inside popover';
+            root2.append(button2);
+          }
+        };
+
+        popover.target = button;
+        root.append(popover);
+      }
+    };
+    dialog.opened = true;
+    await nextRender();
+    button = dialog.$.overlay.querySelector('button');
+    popover = dialog.$.overlay.querySelector('vaadin-popover');
+    overlay = popover._overlayElement;
+  });
+
+  afterEach(async () => {
+    dialog.opened = false;
+    await nextFrame();
+  });
+
+  ['modal', 'modeless'].forEach((type) => {
+    describe(`${type} popover`, () => {
+      beforeEach(async () => {
+        if (type === 'modal') {
+          popover.modal = true;
+          await nextUpdate(popover);
+        }
+
+        button.focus();
+        button.click();
+        await nextRender();
+      });
+
+      it(`should not close the dialog when closing ${type} popover on Escape`, async () => {
+        await sendKeys({ press: 'Escape' });
+
+        expect(overlay.opened).to.be.false;
+        expect(dialog.opened).to.be.true;
+      });
+
+      it(`should close the dialog on subsequent Escape after the ${type} popover is closed`, async () => {
+        await sendKeys({ press: 'Escape' });
+
+        await sendKeys({ press: 'Escape' });
+
+        expect(dialog.opened).to.be.false;
+      });
+    });
+  });
+});

packages/popover/src/vaadin-popover.js

@@ -214,7 +214,9 @@ class Popover extends PopoverPositionMixin(
 
   /** @private */
   __onTargetKeydown(event) {
-    if (event.key === 'Escape' && !this.noCloseOnEsc) {
+    if (event.key === 'Escape' && !this.noCloseOnEsc && this._opened) {
+      // Prevent closing parent overlay (e.g. dialog)
+      event.stopPropagation();
       this._opened = false;
     }
   }