Component for showing a fullscreen notice/warning/message to the user

packages/browser-wallet/src/popup/popupX/shared/FullscreenNotice/FullscreenNotice.scss

@@ -0,0 +1,23 @@
+.fullscreen-notice {
+    position: absolute;
+    top: 0;
+    bottom: 0;
+    left: 0;
+    right: 0;
+    z-index: 1000;
+
+    &__back {
+        border: none;
+        background: none;
+
+        &:hover {
+            background: none !important;
+        }
+    }
+
+    &__content {
+        padding: 0 rem(24px);
+        overflow: auto;
+        height: calc(100% - 7.4rem);
+    }
+}

packages/browser-wallet/src/popup/popupX/shared/FullscreenNotice/FullscreenNotice.stories.tsx

@@ -0,0 +1,105 @@
+/* eslint-disable react/function-component-definition, react/destructuring-assignment */
+import React from 'react';
+import { Meta, StoryObj } from '@storybook/react';
+import FullscreenNotice from './FullscreenNotice';
+import Page from '../Page';
+import Button from '../Button';
+
+export default {
+    title: 'X/Shared/FullscreenNotice',
+    component: FullscreenNotice,
+    beforeEach: () => {
+        const body = document.getElementsByTagName('body').item(0);
+        body?.classList.add('popup-x');
+
+        return () => {
+            body?.classList.remove('popup-x');
+        };
+    },
+} as Meta<typeof FullscreenNotice>;
+
+type Story = StoryObj<typeof FullscreenNotice>;
+
+export const Primary: Story = {
+    args: {
+        children: (
+            <Page>
+                <Page.Top heading="Some title" />
+                <p>
+                    Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore
+                    et dolore magna aliqua. Tincidunt nunc pulvinar sapien et. Mattis aliquam faucibus purus in.
+                    Tristique sollicitudin nibh sit amet commodo nulla facilisi. Eget nullam non nisi est sit amet. At
+                    lectus urna duis convallis. Consequat semper viverra nam libero. Gravida rutrum quisque non tellus
+                    orci ac auctor. Mattis aliquam faucibus purus in massa tempor nec feugiat. Consectetur adipiscing
+                    elit duis tristique sollicitudin. Sit amet est placerat in egestas erat imperdiet sed euismod.
+                    Ornare massa eget egestas purus viverra. Viverra maecenas accumsan lacus vel facilisis. Malesuada
+                    fames ac turpis egestas integer eget aliquet nibh. Non diam phasellus vestibulum lorem sed risus.
+                    Tincidunt vitae semper quis lectus nulla. Cursus euismod quis viverra nibh cras pulvinar mattis nunc
+                    sed.
+                </p>
+                <Page.Footer>
+                    <Button.Main label="Some action" />
+                </Page.Footer>
+            </Page>
+        ),
+        open: true,
+    },
+};
+
+export const WallOfText: Story = {
+    args: {
+        children: (
+            <>
+                <h1>Lorem ipsum!</h1>
+                <p>
+                    Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore
+                    et dolore magna aliqua. Tincidunt nunc pulvinar sapien et. Mattis aliquam faucibus purus in.
+                    Tristique sollicitudin nibh sit amet commodo nulla facilisi. Eget nullam non nisi est sit amet. At
+                    lectus urna duis convallis. Consequat semper viverra nam libero. Gravida rutrum quisque non tellus
+                    orci ac auctor. Mattis aliquam faucibus purus in massa tempor nec feugiat. Consectetur adipiscing
+                    elit duis tristique sollicitudin. Sit amet est placerat in egestas erat imperdiet sed euismod.
+                    Ornare massa eget egestas purus viverra. Viverra maecenas accumsan lacus vel facilisis. Malesuada
+                    fames ac turpis egestas integer eget aliquet nibh. Non diam phasellus vestibulum lorem sed risus.
+                    Tincidunt vitae semper quis lectus nulla. Cursus euismod quis viverra nibh cras pulvinar mattis nunc
+                    sed.
+                </p>
+                <p>
+                    Commodo quis imperdiet massa tincidunt nunc pulvinar sapien et ligula. Vitae congue mauris rhoncus
+                    aenean vel elit scelerisque mauris pellentesque. Nec feugiat in fermentum posuere urna. Lobortis
+                    scelerisque fermentum dui faucibus in ornare quam. Sit amet est placerat in egestas erat imperdiet
+                    sed euismod. Nulla aliquet porttitor lacus luctus accumsan tortor posuere. Arcu risus quis varius
+                    quam. Ullamcorper a lacus vestibulum sed arcu non odio. Eu mi bibendum neque egestas. Duis at
+                    consectetur lorem donec.
+                </p>
+                <p>
+                    Hendrerit dolor magna eget est lorem ipsum dolor sit amet. Dignissim sodales ut eu sem. Tellus
+                    molestie nunc non blandit massa enim nec. Amet nulla facilisi morbi tempus iaculis urna. Metus
+                    vulputate eu scelerisque felis imperdiet proin. Mauris ultrices eros in cursus turpis massa
+                    tincidunt dui ut. Praesent tristique magna sit amet purus gravida quis blandit turpis. Turpis nunc
+                    eget lorem dolor sed viverra ipsum. Et egestas quis ipsum suspendisse ultrices gravida. Egestas diam
+                    in arcu cursus euismod quis. Egestas purus viverra accumsan in. Convallis convallis tellus id
+                    interdum. Donec pretium vulputate sapien nec sagittis. Consectetur adipiscing elit ut aliquam purus
+                    sit amet luctus venenatis.
+                </p>
+                <p>
+                    Eget gravida cum sociis natoque penatibus et. Tincidunt eget nullam non nisi est. Amet mattis
+                    vulputate enim nulla. Eget mi proin sed libero enim sed faucibus turpis in. Mattis ullamcorper velit
+                    sed ullamcorper. Nunc vel risus commodo viverra. At tellus at urna condimentum mattis. At elementum
+                    eu facilisis sed odio. Egestas dui id ornare arcu. Proin libero nunc consequat interdum varius.
+                    Scelerisque eleifend donec pretium vulputate sapien nec.
+                </p>
+                <p>
+                    Eget velit aliquet sagittis id consectetur purus ut faucibus pulvinar. Sapien eget mi proin sed
+                    libero enim. Eget velit aliquet sagittis id consectetur. Est placerat in egestas erat. Diam maecenas
+                    ultricies mi eget mauris pharetra et ultrices neque. Ut sem nulla pharetra diam sit amet nisl
+                    suscipit adipiscing. Curabitur vitae nunc sed velit dignissim sodales ut eu sem. Adipiscing at in
+                    tellus integer feugiat scelerisque varius. Ultrices mi tempus imperdiet nulla malesuada pellentesque
+                    elit eget. Quisque sagittis purus sit amet volutpat. Dignissim diam quis enim lobortis scelerisque
+                    fermentum dui. At lectus urna duis convallis convallis tellus id. Ultrices dui sapien eget mi proin
+                    sed.
+                </p>
+            </>
+        ),
+        open: true,
+    },
+};

packages/browser-wallet/src/popup/popupX/shared/FullscreenNotice/FullscreenNotice.tsx

@@ -0,0 +1,97 @@
+import React, { PropsWithChildren, useCallback, useEffect, useMemo } from 'react';
+import clsx from 'clsx';
+import { Portal, noOp } from 'wallet-common-helpers';
+import Back from '@assets/svgX/arrow-left.svg';
+import { Connection, Fullscreen } from '@popup/popupX/page-layouts/MainLayout/Header/components';
+import Button from '../Button';
+
+type HeaderProps = {
+    isScrolling: boolean;
+    onBack(): void;
+};
+
+function Header({ isScrolling, onBack }: HeaderProps) {
+    return (
+        <div className={clsx('main-header', isScrolling && 'scroll-border')}>
+            <div className="main-header__top">
+                <Fullscreen />
+                <Connection hideConnection={false} />
+            </div>
+            <div className="main-header__bottom">
+                <Button.Icon className="fullscreen-notice__back" icon={<Back />} onClick={() => onBack()} />
+            </div>
+        </div>
+    );
+}
+
+const htmlElement = document.getElementsByTagName('html')[0]!;
+const bodyElement = document.getElementsByTagName('body')[0]!;
+
+export type ModalProps = {
+    /** Control whether notice is shown or not */
+    open: boolean;
+    /** Invoked when the notice is closed */
+    onClose(): void;
+};
+
+/**
+ * @description
+ * Opens content in a modal overlay on top of the current wallet window.
+ *
+ * @example
+ * <FullscreenNotice open={isOpen} onClose={() => setIsOpen(false)}>
+ *   <Page>
+ *     <Page.Top heading="Notice title"/>
+ *     This is the body
+ *     <Page.Footer>
+ *       <Button.Main>Some action</Button.Main>
+ *     </Page.Footer>
+ *   </Page>
+ *   This content is shown in a modal!
+ * </FullscreenNotice>
+ */
+export default function FullscreenNotice({
+    open,
+    onClose,
+    children,
+}: PropsWithChildren<ModalProps>): JSX.Element | null {
+    const [scroll, setScroll] = React.useState(0);
+    const isScrolling = useMemo(() => scroll > 0, [!!scroll]);
+    const close = useCallback(() => {
+        onClose();
+    }, [onClose]);
+
+    useEffect(() => {
+        if (open) {
+            htmlElement.classList.add('modal-open');
+
+            // Prevent modal from stretching window height
+            htmlElement.style.height = bodyElement.style.height;
+
+            return () => {
+                htmlElement.classList.remove('modal-open');
+                // Reset to initial value
+                htmlElement.style.height = '100%';
+            };
+        }
+        return noOp;
+    }, [open]);
+
+    if (!open) {
+        return null;
+    }
+
+    return (
+        <Portal className="fullscreen-notice">
+            <Header isScrolling={isScrolling} onBack={close} />
+            <div
+                className="fullscreen-notice__content"
+                onScroll={(e) => {
+                    setScroll(e.currentTarget.scrollTop);
+                }}
+            >
+                {children}
+            </div>
+        </Portal>
+    );
+}

packages/browser-wallet/src/popup/popupX/shared/FullscreenNotice/index.ts

@@ -0,0 +1 @@
+export { default } from './FullscreenNotice';

packages/browser-wallet/src/popup/popupX/styles/_elements.scss

@@ -43,3 +43,4 @@
 @import '../shared/Carousel/Carousel';
 @import '../shared/Form/Form';
 @import '../shared/Form/TokenAmount/TokenAmount';
+@import '../shared/FullscreenNotice/FullscreenNotice';