feat: Add mentions on text renderer"

mobile/app/[account]/index.tsx

@@ -1,7 +1,6 @@
 import { useEffect, useState } from "react";
 import { useDispatch } from "react-redux";
 import { router, useLocalSearchParams, useNavigation } from "expo-router";
-import { Loading } from "@gno/components/loading";
 import { AccountView } from "@gno/components/view";
 import { useSearch } from "@gno/hooks/use-search";
 import { Following, Post, User } from "@gno/types";
@@ -10,11 +9,15 @@ import { selectAccount } from "redux/features/accountSlice";
 import { setFollows } from "redux/features/profileSlice";
 import { useFeed } from "@gno/hooks/use-feed";
 import { useUserCache } from "@gno/hooks/use-user-cache";
+import ErrorView from "@gno/components/view/account/no-account-view";
+import Layout from "@gno/components/layout";
+import { colors } from "@gno/styles/colors";
 
 export default function Page() {
   const { accountName } = useLocalSearchParams<{ accountName: string }>();
 
   const [loading, setLoading] = useState<string | undefined>(undefined);
+  const [error, setError] = useState<string | undefined>(undefined);
   const [user, setUser] = useState<User | undefined>(undefined);
   const [following, setFollowing] = useState<Following[]>([]);
   const [followers, setFollowers] = useState<Following[]>([]);
@@ -43,13 +46,18 @@ export default function Page() {
       const response = await search.getJsonUserByName(accountName);
       setUser(response);
 
+      if (!response) {
+        setError(`The account '${accountName}' does not exist.`);
+        return;
+      }
+
       const { followers } = await search.GetJsonFollowers(response.address);
       setFollowers(followers);
 
       const { following } = await search.GetJsonFollowing(response.address);
       setFollowing(following);
 
-      const isUserFeed = response.address === currentUser.address
+      const isUserFeed = response.address === currentUser?.address;
       if (isUserFeed) {
         const total = await feed.fetchCount(response.address);
         setTotalPosts(total);
@@ -114,23 +122,26 @@ export default function Page() {
     router.navigate({ pathname: "/post/[post_id]", params: { post_id: item.id, address: item.user.address } });
   };
 
-  if (!user || loading || !currentUser) {
-    return <Loading message="Profile Loading..." />;
-  }
-
   return (
-    <AccountView
-      user={user}
-      totalPosts={totalPosts}
-      currentUser={currentUser}
-      following={following}
-      followers={followers}
-      onGnod={onGnod}
-      onPressPost={onPressPost}
-      onPressFollowing={onPressFollowing}
-      onPressFollowers={onPressFollowers}
-      onPressFollow={onPressFollow}
-      onPressUnfollow={onPressUnfollow}
-    />
+    <Layout.Container>
+      <Layout.Header style={{ backgroundColor: colors.grayscale[200] }} />
+      {error || loading || !user || !currentUser ? (
+        <ErrorView message={error} />
+      ) : (
+        <AccountView
+          user={user}
+          currentUser={currentUser}
+          totalPosts={totalPosts}
+          following={following}
+          followers={followers}
+          onGnod={onGnod}
+          onPressPost={onPressPost}
+          onPressFollowing={onPressFollowing}
+          onPressFollowers={onPressFollowers}
+          onPressFollow={onPressFollow}
+          onPressUnfollow={onPressUnfollow}
+        />
+      )}
+    </Layout.Container>
   );
 }

mobile/app/home/feed.tsx

@@ -16,8 +16,8 @@ export default function Page() {
   const [isLoading, setIsLoading] = useState(true);
 
   const router = useRouter();
-  const feed = useFeed();
   const navigation = useNavigation();
+  const feed = useFeed();
   const ref = useRef<FlatList>(null);
   const dispatch = useAppDispatch();
 
@@ -47,7 +47,7 @@ export default function Page() {
   }, [navigation]);
 
   const onPressPost = () => {
-    router.push("/post");
+    router.navigate({ pathname: "/post" });
   };
 
   const onPress = async (item: Post) => {

mobile/components/feed/post-content-label.tsx

@@ -0,0 +1,37 @@
+import { colors } from "@gno/styles/colors";
+import React from "react";
+import Autolink, { CustomMatcher } from "react-native-autolink";
+
+const PATTERN = /@([a-z]+[_a-z0-9]{5,})/g;
+
+type Props = {
+  onMentionPress?: (accountName: string) => void;
+  children: string;
+};
+
+const PostContentLabel: React.FC<Props> = ({ children, onMentionPress }) => {
+  return (
+    <Autolink
+      text={children}
+      email={false}
+      url={false}
+      matchers={[
+        {
+          pattern: PATTERN,
+          style: { color: colors.blue, fontWeight: "bold" },
+          getLinkText: (replacerArgs) => `@${replacerArgs[1]}`,
+          onPress: (match) => {
+            console.log("Pressed mention1 ", match);
+
+            const accountNameM1 = match.getReplacerArgs()[0];
+            const accountName = accountNameM1.replace("@", "");
+
+            onMentionPress ? onMentionPress(accountName) : null;
+          },
+        },
+      ]}
+    />
+  );
+};
+
+export default PostContentLabel;

mobile/components/feed/post-row.tsx

@@ -10,6 +10,7 @@ import { useRouter } from "expo-router";
 import RepostLabel from "./repost-label";
 import { RepostRow } from "./repost-row";
 import GnodLabel from "./gnod-label";
+import PostContentLabel from "./post-content-label";
 
 interface FeedProps {
   post?: Post;
@@ -30,8 +31,8 @@ export function PostRow({ post, onPress = func, onGnod = func, showFooter = true
     router.navigate({ pathname: "/repost" });
   };
 
-  const onPressName = async () => {
-    router.navigate({ pathname: "account", params: { accountName: post?.user.name } });
+  const nativgateToAccount = async (accountName: string) => {
+    router.navigate({ pathname: "account", params: { accountName } });
   };
 
   if (!post) {
@@ -45,13 +46,13 @@ export function PostRow({ post, onPress = func, onGnod = func, showFooter = true
         <Image source={{ uri: post.user.image }} style={styles.image} />
         <View style={styles.content}>
           <View style={{ flexDirection: "row", alignItems: "center" }}>
-            <Pressable style={{ flexDirection: "row", alignItems: "center" }} onPress={onPressName}>
+            <Pressable style={{ flexDirection: "row", alignItems: "center" }} onPress={() => nativgateToAccount(post?.user.name)}>
               <Text.Body style={[{ fontWeight: "bold", fontSize: 16, paddingRight: 8 }]}>@{post.user.name}</Text.Body>
               <TimeStampLabel timestamp={post.date} />
             </Pressable>
           </View>
 
-          <Text.Body selectable>{post.post}</Text.Body>
+          <PostContentLabel onMentionPress={(value) => nativgateToAccount(value)}>{post.post}</PostContentLabel>
           {isRepost ? <RepostRow post={post.repost_parent} onPress={onPress} showFooter={false} /> : null}
         </View>
       </View>

mobile/components/layout/header.tsx

@@ -1,7 +1,7 @@
 import React from "react";
 import { StyleSheet, TouchableOpacity, View, Text } from "react-native";
 import Icons from "../icons";
-import { useNavigation } from "@react-navigation/native";
+import { useRouter } from "expo-router";
 
 type Props = {
   iconType?: "close" | "back";
@@ -12,16 +12,20 @@ type Props = {
 };
 
 const Header: React.FC<Props> = ({ iconType = "close", onCloseHandler, title = "", subtitle = "", style }) => {
-  const navigate = useNavigation();
+  const router = useRouter();
 
   if (!onCloseHandler) {
     onCloseHandler = () => {
-      navigate.goBack();
+      if (router.canGoBack()) {
+        router.back();
+      } else {
+        router.navigate({ pathname: "/home" });
+      }
     };
   }
 
   return (
-    <View style={styles.container}>
+    <View style={[styles.container, style]}>
       <TouchableOpacity style={styles.closeButton} onPress={onCloseHandler}>
         {iconType === "close" ? <Icons.Close /> : <Icons.ArrowLeft />}
       </TouchableOpacity>
@@ -43,15 +47,15 @@ const styles = StyleSheet.create({
     paddingLeft: 16,
   },
   contentArea: { flex: 1, alignItems: "center", paddingRight: 36 },
-	title: {
-		fontSize: 16,
-		fontWeight: "bold",
-		color: "#000000",
-	},
-	subtitle: {
-		fontSize: 12,
-		color: "#000000",
-	},
+  title: {
+    fontSize: 16,
+    fontWeight: "bold",
+    color: "#000000",
+  },
+  subtitle: {
+    fontSize: 12,
+    color: "#000000",
+  },
 });
 
 export default Header;

mobile/components/view/account/index.tsx

@@ -40,8 +40,7 @@ function AccountView(props: Props) {
   const isFollowed = useMemo(() => followers.find((f) => f.address === currentUser.address) != null, [user, followers]);
 
   return (
-    <Layout.Container>
-      <Layout.Header style={styles.headerButton} />
+    <>
       <View style={styles.container}>
         <View style={styles.banner}>
           <Image source={{ uri: "https://www.gravatar.com/avatar/tmp" }} style={styles.avatar} />
@@ -84,12 +83,11 @@ function AccountView(props: Props) {
           <FeedView totalPosts={totalPosts} onPress={onPressPost} onGnod={onGnod} address={user.address} type="userPosts" />
         </View>
       </View>
-    </Layout.Container>
+    </>
   );
 }
 
 const styles = StyleSheet.create({
-  headerButton: { backgroundColor: colors.grayscale[200] },
   avatar: {
     width: 120,
     height: 120,

mobile/components/view/account/no-account-view.tsx

@@ -0,0 +1,28 @@
+import Layout from "@gno/components/layout";
+import Text from "@gno/components/text";
+import React from "react";
+import styled from "styled-components/native";
+
+type Props = {
+  message?: string;
+};
+
+export const ErrorView: React.FC<Props> = ({ message = "Loading" }) => {
+  return (
+    <Layout.Container>
+      <Layout.Body>
+        <ViewCenter>
+          <Text.BodyMedium>{message}</Text.BodyMedium>
+        </ViewCenter>
+      </Layout.Body>
+    </Layout.Container>
+  );
+};
+
+const ViewCenter = styled.View`
+  height: 100%;
+  justify-content: center;
+  align-items: center;
+`;
+
+export default ErrorView;

mobile/package.json

@@ -24,9 +24,11 @@
     "base-64": "^1.0.0",
     "date-fns": "^3.6.0",
     "expo": "~51.0.8",
+    "expo-application": "~5.9.1",
     "expo-clipboard": "~6.0.3",
     "expo-constants": "~16.0.2",
     "expo-device": "~6.0.2",
+    "expo-linear-gradient": "~13.0.2",
     "expo-linking": "~6.3.1",
     "expo-notifications": "~0.28.6",
     "expo-router": "~3.5.14",
@@ -36,6 +38,7 @@
     "react": "18.2.0",
     "react-dom": "^18.2.0",
     "react-native": "0.74.1",
+    "react-native-autolink": "^4.2.0",
     "react-native-fetch-api": "^3.0.0",
     "react-native-gesture-handler": "~2.16.1",
     "react-native-get-random-values": "~1.11.0",
@@ -48,9 +51,7 @@
     "react-redux": "^9.1.0",
     "styled-components": "^6.1.8",
     "text-encoding": "^0.7.0",
-    "web-streams-polyfill": "^3.3.2",
-    "expo-application": "~5.9.1",
-    "expo-linear-gradient": "~13.0.2"
+    "web-streams-polyfill": "^3.3.2"
   },
   "devDependencies": {
     "@babel/core": "^7.20.0",