Add initial Nudge component

src/components/Nudge.tsx

@@ -0,0 +1,117 @@
+import React from 'react'
+import {Keyboard, StyleProp, View, ViewStyle} from 'react-native'
+import {LinearGradient} from 'expo-linear-gradient'
+import {msg, Trans} from '@lingui/macro'
+import {useLingui} from '@lingui/react'
+
+import {isWeb} from '#/platform/detection'
+import {atoms as a, useTheme} from '#/alf'
+import {FullWindowOverlay} from '#/components/FullWindowOverlay'
+import {Portal} from '#/components/Portal'
+import {Button} from './Button'
+import {Text} from './Typography'
+
+type Anchor = 'top_left' | 'top_center' | 'top_right'
+
+interface NudgeProps {
+  testID?: string
+  isOpen: boolean
+  anchor: Anchor
+  onClose: () => void
+  style?: StyleProp<ViewStyle>
+}
+
+export function Nudge({
+  children,
+  testID,
+  isOpen,
+  anchor,
+  onClose,
+  style,
+}: React.PropsWithChildren<NudgeProps>) {
+  const t = useTheme()
+  const {_} = useLingui()
+  const anchorPositioningStyle = useAnchorPositioningStyle(anchor)
+  return (
+    isOpen && (
+      <Portal>
+        <FullWindowOverlay>
+          {/* Backdrop overlay */}
+          <View
+            style={[
+              a.fixed,
+              a.inset_0,
+              {backgroundColor: '#000', opacity: 0.1},
+              a.pointer_events_none,
+            ]}
+          />
+          <View
+            // iOS
+            accessibilityViewIsModal
+            // Android
+            importantForAccessibility="yes"
+            style={[a.fixed, a.px_lg, a.py_md, style]}
+            testID={testID}
+            onTouchMove={() => Keyboard.dismiss()}>
+            {/* Angle pointer up */}
+            <View
+              style={[
+                a.absolute,
+                anchorPositioningStyle,
+                {
+                  width: 16,
+                  height: 16,
+                  backgroundColor: t.palette.primary_500,
+                  transform: [{rotate: '45deg'}],
+                },
+              ]}
+            />
+
+            <LinearGradient
+              colors={[t.palette.primary_500, t.palette.primary_400]}
+              locations={[0, 1]}
+              start={{x: 0, y: 0}}
+              end={{x: 0, y: 1}}
+              style={[a.absolute, a.inset_0, a.rounded_sm]}
+            />
+            <View>{children}</View>
+            <Button label={_(msg`Okay`)} onPress={onClose}>
+              {({hovered}) => (
+                <View
+                  style={[
+                    a.flex_1,
+                    a.px_lg,
+                    a.py_md,
+                    a.rounded_xs,
+                    a.border,
+                    {borderColor: '#fff'},
+                    hovered && {backgroundColor: t.palette.primary_400},
+                  ]}>
+                  <Text
+                    style={[
+                      a.text_md,
+                      a.text_center,
+                      a.font_semibold,
+                      {color: '#fff'},
+                    ]}>
+                    <Trans>Okay</Trans>
+                  </Text>
+                </View>
+              )}
+            </Button>
+          </View>
+        </FullWindowOverlay>
+      </Portal>
+    )
+  )
+}
+
+function useAnchorPositioningStyle(anchor: Anchor): ViewStyle {
+  if (anchor === 'top_center') {
+    return {left: isWeb ? '48%' : '52%', top: -8}
+  }
+  if (anchor === 'top_right') {
+    return {right: 20, top: -8}
+  }
+  return {left: 20, top: -8}
+}

src/view/com/home/HomeNewUserNudge.tsx

@@ -0,0 +1,58 @@
+import React from 'react'
+import {View} from 'react-native'
+
+import {isWeb} from '#/platform/detection'
+import {Nudge} from '#/components/Nudge'
+import {Text} from '#/components/Typography'
+
+export function HomeNewUserNudge() {
+  const [isOpen, setIsOpen] = React.useState(true)
+  return (
+    <Nudge
+      isOpen={isOpen}
+      anchor="top_center"
+      onClose={() => setIsOpen(false)}
+      style={
+        isWeb
+          ? {
+              left: '50%',
+              top: 105,
+              maxWidth: 380,
+              transform: [{translateX: '-50%'}],
+            }
+          : {
+              top: 155,
+              left: 10,
+              right: 10,
+            }
+      }>
+      <View
+        style={{
+          paddingTop: 10,
+          paddingBottom: 20,
+          paddingHorizontal: 10,
+          gap: 10,
+        }}>
+        <Text
+          style={{
+            fontWeight: 'bold',
+            fontSize: 21,
+            lineHeight: 23,
+            color: '#fff',
+          }}>
+          Welcome to Bluesky!
+        </Text>
+        <Text
+          style={{
+            fontWeight: '500',
+            fontSize: 16,
+            lineHeight: 18,
+            color: '#fff',
+          }}>
+          You're on the Discover algorithm. Swipe right to change your current
+          feed.
+        </Text>
+      </View>
+    </Nudge>
+  )
+}

src/view/screens/Home.tsx

@@ -29,6 +29,7 @@ import {FollowingEmptyState} from 'view/com/posts/FollowingEmptyState'
 import {FollowingEndOfFeed} from 'view/com/posts/FollowingEndOfFeed'
 import {NoFeedsPinned} from '#/screens/Home/NoFeedsPinned'
 import {HomeHeader} from '../com/home/HomeHeader'
+import {HomeNewUserNudge} from '../com/home/HomeNewUserNudge'
 
 type Props = NativeStackScreenProps<HomeTabNavigatorParams, 'Home'>
 export function HomeScreen(props: Props) {
@@ -173,7 +174,6 @@ function HomeScreenReady({
     },
     [setMinimalShellMode],
   )
-
   const renderTabBar = React.useCallback(
     (props: RenderTabBarFnProps) => {
       return (
@@ -209,47 +209,50 @@ function HomeScreenReady({
   }, [preferences])
 
   return hasSession ? (
-    <Pager
-      key={allFeeds.join(',')}
-      ref={pagerRef}
-      testID="homeScreen"
-      initialPage={selectedIndex}
-      onPageSelecting={onPageSelecting}
-      onPageSelected={onPageSelected}
-      onPageScrollStateChanged={onPageScrollStateChanged}
-      renderTabBar={renderTabBar}>
-      {pinnedFeedInfos.length ? (
-        pinnedFeedInfos.map(feedInfo => {
-          const feed = feedInfo.feedDescriptor
-          if (feed === 'following') {
+    <>
+      <HomeNewUserNudge />
+      <Pager
+        key={allFeeds.join(',')}
+        ref={pagerRef}
+        testID="homeScreen"
+        initialPage={selectedIndex}
+        onPageSelecting={onPageSelecting}
+        onPageSelected={onPageSelected}
+        onPageScrollStateChanged={onPageScrollStateChanged}
+        renderTabBar={renderTabBar}>
+        {pinnedFeedInfos.length ? (
+          pinnedFeedInfos.map(feedInfo => {
+            const feed = feedInfo.feedDescriptor
+            if (feed === 'following') {
+              return (
+                <FeedPage
+                  key={feed}
+                  testID="followingFeedPage"
+                  isPageFocused={selectedFeed === feed}
+                  feed={feed}
+                  feedParams={homeFeedParams}
+                  renderEmptyState={renderFollowingEmptyState}
+                  renderEndOfFeed={FollowingEndOfFeed}
+                />
+              )
+            }
+            const savedFeedConfig = feedInfo.savedFeed
             return (
               <FeedPage
                 key={feed}
-                testID="followingFeedPage"
+                testID="customFeedPage"
                 isPageFocused={selectedFeed === feed}
                 feed={feed}
-                feedParams={homeFeedParams}
-                renderEmptyState={renderFollowingEmptyState}
-                renderEndOfFeed={FollowingEndOfFeed}
+                renderEmptyState={renderCustomFeedEmptyState}
+                savedFeedConfig={savedFeedConfig}
               />
             )
-          }
-          const savedFeedConfig = feedInfo.savedFeed
-          return (
-            <FeedPage
-              key={feed}
-              testID="customFeedPage"
-              isPageFocused={selectedFeed === feed}
-              feed={feed}
-              renderEmptyState={renderCustomFeedEmptyState}
-              savedFeedConfig={savedFeedConfig}
-            />
-          )
-        })
-      ) : (
-        <NoFeedsPinned preferences={preferences} />
-      )}
-    </Pager>
+          })
+        ) : (
+          <NoFeedsPinned preferences={preferences} />
+        )}
+      </Pager>
+    </>
   ) : (
     <Pager
       testID="homeScreen"