From 17825cd611c3bbc47fe55b5e7dfe1a39fdca2274 Mon Sep 17 00:00:00 2001
From: Paul Frazee <pfrazee@gmail.com>
Date: Wed, 16 Nov 2022 13:05:36 -0600
Subject: [PATCH] Add placeholder loading states

---
 src/view/com/notifications/Feed.tsx      |   5 +-
 src/view/com/posts/Feed.tsx              |   5 +-
 src/view/com/util/LoadingPlaceholder.tsx | 122 ++++++++++++++++++++++-
 src/view/com/util/PostCtrls.tsx          |   2 +-
 src/view/screens/Profile.tsx             |   3 +-
 5 files changed, 128 insertions(+), 9 deletions(-)

diff --git a/src/view/com/notifications/Feed.tsx b/src/view/com/notifications/Feed.tsx
index ac56823f66..90d16604d8 100644
--- a/src/view/com/notifications/Feed.tsx
+++ b/src/view/com/notifications/Feed.tsx
@@ -1,11 +1,12 @@
 import React from 'react'
 import {observer} from 'mobx-react-lite'
-import {Text, View, FlatList} from 'react-native'
+import {View, FlatList} from 'react-native'
 import {
   NotificationsViewModel,
   NotificationsViewItemModel,
 } from '../../../state/models/notifications-view'
 import {FeedItem} from './FeedItem'
+import {NotificationFeedLoadingPlaceholder} from '../util/LoadingPlaceholder'
 import {ErrorMessage} from '../util/ErrorMessage'
 import {EmptyState} from '../util/EmptyState'
 
@@ -32,7 +33,7 @@ export const Feed = observer(function Feed({
   return (
     <View style={{flex: 1}}>
       {view.isLoading && !view.isRefreshing && !view.hasContent && (
-        <Text>Loading...</Text>
+        <NotificationFeedLoadingPlaceholder />
       )}
       {view.hasError && (
         <ErrorMessage
diff --git a/src/view/com/posts/Feed.tsx b/src/view/com/posts/Feed.tsx
index c2aabd7b7d..7d8c1b4c30 100644
--- a/src/view/com/posts/Feed.tsx
+++ b/src/view/com/posts/Feed.tsx
@@ -1,6 +1,7 @@
 import React, {MutableRefObject} from 'react'
 import {observer} from 'mobx-react-lite'
-import {Text, View, FlatList, StyleProp, ViewStyle} from 'react-native'
+import {View, FlatList, StyleProp, ViewStyle} from 'react-native'
+import {PostFeedLoadingPlaceholder} from '../util/LoadingPlaceholder'
 import {EmptyState} from '../util/EmptyState'
 import {ErrorMessage} from '../util/ErrorMessage'
 import {FeedModel, FeedItemModel} from '../../../state/models/feed-view'
@@ -31,7 +32,7 @@ export const Feed = observer(function Feed({
   return (
     <View style={style}>
       {feed.isLoading && !feed.isRefreshing && !feed.hasContent && (
-        <Text>Loading...</Text>
+        <PostFeedLoadingPlaceholder />
       )}
       {feed.hasError && (
         <ErrorMessage
diff --git a/src/view/com/util/LoadingPlaceholder.tsx b/src/view/com/util/LoadingPlaceholder.tsx
index 55b6ad1b3d..c198407de2 100644
--- a/src/view/com/util/LoadingPlaceholder.tsx
+++ b/src/view/com/util/LoadingPlaceholder.tsx
@@ -1,13 +1,16 @@
 import React, {useEffect, useMemo} from 'react'
 import {
   Animated,
+  StyleSheet,
   StyleProp,
   useWindowDimensions,
   View,
   ViewStyle,
 } from 'react-native'
 import LinearGradient from 'react-native-linear-gradient'
-import {colors} from '../../lib/styles'
+import {FontAwesomeIcon} from '@fortawesome/react-native-fontawesome'
+import {UpIcon, DownIcon} from '../../lib/icons'
+import {s, colors} from '../../lib/styles'
 
 export function LoadingPlaceholder({
   width,
@@ -49,7 +52,7 @@ export function LoadingPlaceholder({
         {
           width,
           height,
-          backgroundColor: colors.gray2,
+          backgroundColor: '#e7e9ea',
           borderRadius: 6,
           overflow: 'hidden',
         },
@@ -62,7 +65,7 @@ export function LoadingPlaceholder({
           transform: [{translateX: offset}],
         }}>
         <LinearGradient
-          colors={[colors.gray2, '#d4d2d2', colors.gray2]}
+          colors={['#e7e9ea', '#e2e2e2', '#e7e9ea']}
           start={{x: 0, y: 0}}
           end={{x: 1, y: 0}}
           style={{width: '100%', height: '100%'}}
@@ -71,3 +74,116 @@ export function LoadingPlaceholder({
     </View>
   )
 }
+
+export function PostLoadingPlaceholder({
+  style,
+}: {
+  style?: StyleProp<ViewStyle>
+}) {
+  return (
+    <View style={[styles.post, style]}>
+      <LoadingPlaceholder width={50} height={50} style={styles.avatar} />
+      <View style={[s.flex1]}>
+        <LoadingPlaceholder width={100} height={8} style={[s.mb10]} />
+        <LoadingPlaceholder width={200} height={8} style={[s.mb5]} />
+        <LoadingPlaceholder width={200} height={8} style={[s.mb5]} />
+        <LoadingPlaceholder width={120} height={8} style={[s.mb10]} />
+        <View style={s.flexRow}>
+          <View style={s.flex1}>
+            <FontAwesomeIcon
+              style={s.gray3}
+              icon={['far', 'comment']}
+              size={14}
+            />
+          </View>
+          <View style={s.flex1}>
+            <FontAwesomeIcon style={s.gray3} icon="retweet" size={18} />
+          </View>
+          <View style={s.flex1}>
+            <UpIcon style={s.gray3} size={18} />
+          </View>
+          <View style={s.flex1}>
+            <DownIcon style={s.gray3} size={18} />
+          </View>
+        </View>
+      </View>
+    </View>
+  )
+}
+
+export function PostFeedLoadingPlaceholder() {
+  return (
+    <>
+      <PostLoadingPlaceholder />
+      <PostLoadingPlaceholder />
+      <PostLoadingPlaceholder />
+      <PostLoadingPlaceholder />
+      <PostLoadingPlaceholder />
+      <PostLoadingPlaceholder />
+      <PostLoadingPlaceholder />
+      <PostLoadingPlaceholder />
+      <PostLoadingPlaceholder />
+      <PostLoadingPlaceholder />
+      <PostLoadingPlaceholder />
+    </>
+  )
+}
+
+export function NotificationLoadingPlaceholder({
+  style,
+}: {
+  style?: StyleProp<ViewStyle>
+}) {
+  return (
+    <View style={[styles.notification, style]}>
+      <View style={[s.flexRow, s.mb10]}>
+        <LoadingPlaceholder width={30} height={30} style={styles.smallAvatar} />
+      </View>
+      <LoadingPlaceholder width={200} height={8} style={[s.mb5]} />
+      <LoadingPlaceholder width={120} height={8} style={[s.mb5]} />
+    </View>
+  )
+}
+
+export function NotificationFeedLoadingPlaceholder() {
+  return (
+    <>
+      <NotificationLoadingPlaceholder />
+      <NotificationLoadingPlaceholder />
+      <NotificationLoadingPlaceholder />
+      <NotificationLoadingPlaceholder />
+      <NotificationLoadingPlaceholder />
+      <NotificationLoadingPlaceholder />
+      <NotificationLoadingPlaceholder />
+      <NotificationLoadingPlaceholder />
+      <NotificationLoadingPlaceholder />
+      <NotificationLoadingPlaceholder />
+      <NotificationLoadingPlaceholder />
+    </>
+  )
+}
+
+const styles = StyleSheet.create({
+  post: {
+    flexDirection: 'row',
+    backgroundColor: colors.white,
+    borderRadius: 6,
+    padding: 10,
+    margin: 1,
+  },
+  avatar: {
+    borderRadius: 25,
+    marginRight: 10,
+  },
+  notification: {
+    backgroundColor: colors.white,
+    borderRadius: 6,
+    padding: 10,
+    paddingLeft: 46,
+    margin: 1,
+  },
+  smallAvatar: {
+    borderRadius: 15,
+    marginRight: 10,
+  },
+})
diff --git a/src/view/com/util/PostCtrls.tsx b/src/view/com/util/PostCtrls.tsx
index ab9e261cfa..5362228a96 100644
--- a/src/view/com/util/PostCtrls.tsx
+++ b/src/view/com/util/PostCtrls.tsx
@@ -77,7 +77,7 @@ export function PostCtrls(opts: PostCtrlsOpts) {
             icon={['far', 'comment']}
             size={14}
           />
-          <Text style={s.f13}>{opts.replyCount}</Text>
+          <Text style={[s.ml5, s.f13]}>{opts.replyCount}</Text>
         </TouchableOpacity>
       </View>
       <View style={s.flex1}>
diff --git a/src/view/screens/Profile.tsx b/src/view/screens/Profile.tsx
index aed482bfbb..0edb503da0 100644
--- a/src/view/screens/Profile.tsx
+++ b/src/view/screens/Profile.tsx
@@ -12,6 +12,7 @@ import {ConfirmModel} from '../../state/models/shell-ui'
 import {ProfileHeader} from '../com/profile/ProfileHeader'
 import {FeedItem} from '../com/posts/FeedItem'
 import {ProfileCard} from '../com/profile/ProfileCard'
+import {PostFeedLoadingPlaceholder} from '../com/util/LoadingPlaceholder'
 import {ErrorScreen} from '../com/util/ErrorScreen'
 import {ErrorMessage} from '../com/util/ErrorMessage'
 import {EmptyState} from '../com/util/EmptyState'
@@ -106,7 +107,7 @@ export const Profile = observer(({visible, params}: ScreenParams) => {
   if (uiState) {
     if (uiState.isInitialLoading) {
       items.push(LOADING_ITEM)
-      renderItem = () => <Text style={styles.loading}>Loading...</Text>
+      renderItem = () => <PostFeedLoadingPlaceholder />
     } else if (uiState.currentView.hasError) {
       items.push({
         _reactKey: '__error__',