Add modal dialog to Storybook

src/app/components/client/stories/ModalDialog.stories.tsx

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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import type { Meta, StoryObj } from "@storybook/react";
+
+import { useOverlayTriggerState } from "react-stately";
+import { useOverlayTrigger } from "react-aria";
+import Image from "next/image";
+import Illustration from "../assets/modal-default-img.svg";
+import { ModalOverlay } from "../dialog/ModalOverlay";
+import { Dialog } from "../dialog/Dialog";
+import { Button } from "../Button";
+
+export type ModalDialogProps = {
+  withDialog?: boolean;
+  withTitle?: boolean;
+  withIllustration?: boolean;
+};
+
+const ModalDialog = (props: ModalDialogProps) => {
+  const modalState = useOverlayTriggerState({ defaultOpen: true });
+  const modalTrigger = useOverlayTrigger({ type: "dialog" }, modalState);
+  return (
+    <>
+      <Button {...modalTrigger.triggerProps} variant="primary">
+        Open modal {props.withDialog && " dialog"}
+      </Button>
+      {modalState.isOpen && (
+        <ModalOverlay
+          state={modalState}
+          {...modalTrigger.overlayProps}
+          isDismissable={true}
+        >
+          {props.withDialog ? (
+            <Dialog
+              title={props.withTitle ? "Here's a dialog for you" : undefined}
+              illustration={
+                props.withIllustration ? (
+                  <Image src={Illustration} alt="" />
+                ) : undefined
+              }
+              onDismiss={() => modalState.close()}
+            >
+              <p>Some dialog content.</p>
+            </Dialog>
+          ) : (
+            <>
+              <p>
+                This is modal content; note that it&apos;s not possible to
+                interact with the content behind the modal overlay. Here&apos;s
+                a button to close the modal: &nbsp;
+              </p>
+              <Button variant="primary" onPress={() => modalState.close()}>
+                Close modal
+              </Button>
+            </>
+          )}
+        </ModalOverlay>
+      )}
+    </>
+  );
+};
+
+// More on how to set up stories at: https://storybook.js.org/docs/react/writing-stories/introduction
+const meta: Meta<typeof ModalDialog> = {
+  title: "Design Systems/Molecules/Modal dialog",
+  component: ModalDialog,
+  argTypes: {
+    withDialog: {
+      control: "boolean",
+      name: "With dialog",
+    },
+    withTitle: {
+      control: "boolean",
+      name: "With title",
+    },
+    withIllustration: {
+      control: "boolean",
+      name: "With illustration",
+    },
+  },
+};
+export default meta;
+type Story = StoryObj<typeof ModalDialog>;
+
+export const Modal: Story = {
+  name: "Modal without a dialog",
+  args: {},
+};
+
+export const ModalWithDialog: Story = {
+  name: "Modal dialog",
+  args: {
+    withDialog: true,
+  },
+};
+
+export const ModalDialogWithTitle: Story = {
+  name: "With title",
+  args: {
+    withDialog: true,
+    withTitle: true,
+  },
+};
+
+export const ModalDialogWithIllustration: Story = {
+  name: "With title and illustration",
+  args: {
+    withDialog: true,
+    withTitle: true,
+    withIllustration: true,
+  },
+};