feat(core): notification entry for mobile (#13214)

#### PR Dependency Tree


* **PR #13214** 👈

This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **New Features**
* Added a notification icon with a live badge displaying the
notification count in the mobile home header. The badge dynamically
adjusts and caps the count at "99+".
* Introduced a notification menu in the mobile header, allowing users to
view their notifications directly.

* **Style**
* Improved notification list responsiveness on mobile by making it full
width.
* Enhanced the appearance of the notification badge for better
visibility.
* Updated the app fallback UI to display skeleton placeholders for both
notification and settings icons.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/frontend/core/src/components/notification/list.style.css.ts

@@ -7,6 +7,12 @@ export const container = style({
   width: '360px',
   display: 'flex',
   flexDirection: 'column',
+
+  selectors: {
+    '&[data-mobile]': {
+      width: '100%',
+    },
+  },
 });
 
 export const header = style({

packages/frontend/core/src/components/notification/list.tsx

@@ -90,7 +90,10 @@ export const NotificationList = () => {
   }, [notificationListService]);
 
   return (
-    <div className={styles.container}>
+    <div
+      className={styles.container}
+      data-mobile={BUILD_CONFIG.isMobileEdition ? '' : undefined}
+    >
       <div className={styles.header}>
         <span>{t['com.affine.rootAppSidebar.notifications']()}</span>
         {notifications.length > 0 && (

packages/frontend/core/src/mobile/components/app-fallback/index.tsx

@@ -52,11 +52,23 @@ const Section = () => {
 export const AppFallback = () => {
   return (
     <SafeArea top bottom style={{ height: '100dvh', overflow: 'hidden' }}>
-      {/* setting */}
-      <div style={{ padding: 10, display: 'flex', justifyContent: 'end' }}>
+      {/* notification and setting */}
+      <div
+        style={{
+          padding: 10,
+          paddingTop: 0,
+          display: 'flex',
+          justifyContent: 'end',
+          gap: 10,
+        }}
+      >
         <Skeleton
           animation="wave"
-          style={{ width: 23, height: 23, borderRadius: 4 }}
+          style={{ width: 28, height: 28, borderRadius: 4 }}
+        />
+        <Skeleton
+          animation="wave"
+          style={{ width: 28, height: 28, borderRadius: 4 }}
         />
       </div>
       {/* workspace card */}

packages/frontend/core/src/mobile/views/home-header/index.tsx

@@ -1,13 +1,16 @@
 import {
   IconButton,
+  Menu,
   SafeArea,
   startScopedViewTransition,
 } from '@affine/component';
+import { NotificationList } from '@affine/core/components/notification/list';
 import { WorkspaceDialogService } from '@affine/core/modules/dialogs';
+import { NotificationCountService } from '@affine/core/modules/notification';
 import { WorkbenchService } from '@affine/core/modules/workbench';
 import { useI18n } from '@affine/i18n';
-import { SettingsIcon } from '@blocksuite/icons/rc';
-import { useService } from '@toeverything/infra';
+import { NotificationIcon, SettingsIcon } from '@blocksuite/icons/rc';
+import { useLiveData, useService } from '@toeverything/infra';
 import clsx from 'clsx';
 import { useCallback, useRef, useState } from 'react';
 
@@ -29,6 +32,8 @@ export const HomeHeader = () => {
   const floatWorkspaceCardRef = useRef<HTMLDivElement>(null);
   const t = useI18n();
   const workbench = useService(WorkbenchService).workbench;
+  const notificationCountService = useService(NotificationCountService);
+  const notificationCount = useLiveData(notificationCountService.count$);
 
   const navSearch = useCallback(() => {
     startScopedViewTransition(searchVTScope, () => {
@@ -70,6 +75,21 @@ export const HomeHeader = () => {
           className={styles.floatWsSelector}
           ref={floatWorkspaceCardRef}
         />
+        <Menu items={<NotificationList />}>
+          <div style={{ position: 'relative' }}>
+            <NotificationIcon width={28} height={28} />
+            {notificationCount > 0 && (
+              <div
+                className={styles.notificationBadge}
+                style={{
+                  fontSize: notificationCount > 99 ? '8px' : '12px',
+                }}
+              >
+                {notificationCount > 99 ? '99+' : notificationCount}
+              </div>
+            )}
+          </div>
+        </Menu>
         <IconButton
           style={{ transition: 'none' }}
           onClick={openSetting}

packages/frontend/core/src/mobile/views/home-header/styles.css.ts

@@ -54,3 +54,17 @@ export const floatWsSelector = style({
     },
   },
 });
+
+export const notificationBadge = style({
+  position: 'absolute',
+  top: -2,
+  right: -2,
+  backgroundColor: cssVarV2('button/primary'),
+  color: cssVarV2('text/pureWhite'),
+  width: '16px',
+  height: '16px',
+  fontSize: '12px',
+  lineHeight: '16px',
+  borderRadius: '50%',
+  textAlign: 'center',
+});