Improve topics list UI

packages/concordia-app/package.json

@@ -34,6 +34,7 @@
     "i18next-http-backend": "^1.0.21",
     "level": "~6.0.1",
     "lodash": "^4.17.20",
+    "moment": "^2.29.1",
     "orbit-db-identity-provider": "~0.3.1",
     "prop-types": "~15.7.2",
     "react": "~16.13.1",

packages/concordia-app/public/locales/en/translation.json

@@ -19,5 +19,8 @@
   "topic.create.form.subject.field.placeholder": "Subject",
   "topic.create.form.message.field.label": "First post message",
   "topic.create.form.message.field.placeholder": "Message",
-  "topic.create.form.post.button": "Post"
+  "topic.create.form.post.button": "Post",
+  "topic.list.row.author.date": "Posted by {{author}}, {{timeAgo}}",
+  "topic.list.row.number.of.replies": "{{numberOfReplies}} replies",
+  "topic.list.row.topic.id": "#{{id}}"
 }

packages/concordia-app/src/components/TopicList/TopicListRow/index.jsx

@@ -1,34 +1,42 @@
 import React, {
   memo, useEffect, useMemo, useState,
 } from 'react';
-import { List } from 'semantic-ui-react';
+import {
+  Dimmer, Grid, List, Loader, Placeholder,
+} from 'semantic-ui-react';
 import PropTypes from 'prop-types';
+import { useTranslation } from 'react-i18next';
+import moment from 'moment';
+import { useHistory } from 'react-router';
 import { useDispatch, useSelector } from 'react-redux';
 import { FETCH_USER_DATABASE } from '../../../redux/actions/peerDbReplicationActions';
 import { breeze } from '../../../redux/store';
+import './styles.css';
 
 const { orbit } = breeze;
 
 const TopicListRow = (props) => {
-  const { id: topicId, topicCallHash } = props;
+  const { id: topicId, topicCallHash, loading } = props;
   const getTopicResults = useSelector((state) => state.contracts.Forum.getTopic);
   const [numberOfReplies, setNumberOfReplies] = useState(null);
   const [username, setUsername] = useState(null);
   const [topicAuthor, setTopicAuthor] = useState(null);
-  const [timestamp, setTimestamp] = useState(null);
+  const [timeAgo, setTimeAgo] = useState(null);
   const [topicSubject, setTopicSubject] = useState(null);
   const userAddress = useSelector((state) => state.user.address);
   const topics = useSelector((state) => state.orbitData.topics);
   const dispatch = useDispatch();
+  const history = useHistory();
+  const { t } = useTranslation();
 
   useEffect(() => {
-    if (topicCallHash && getTopicResults[topicCallHash] !== undefined) {
+    if (!loading && topicCallHash && getTopicResults[topicCallHash] !== undefined) {
       setTopicAuthor(getTopicResults[topicCallHash].value[0]);
       setUsername(getTopicResults[topicCallHash].value[1]);
-      setTimestamp(getTopicResults[topicCallHash].value[2] * 1000);
+      setTimeAgo(moment(getTopicResults[topicCallHash].value[2] * 1000).fromNow());
       setNumberOfReplies(getTopicResults[topicCallHash].value[3].length);
     }
-  }, [getTopicResults, topicCallHash]);
+  }, [getTopicResults, loading, topicCallHash]);
 
   useEffect(() => {
     if (topicAuthor && userAddress !== topicAuthor) {
@@ -45,30 +53,68 @@ const TopicListRow = (props) => {
       .find((topic) => topic.id === topicId);
 
     if (topicFound) {
-      setTopicSubject(topicFound);
+      setTopicSubject(topicFound.subject);
     }
   }, [topicId, topics]);
 
-  return useMemo(() => (
+  return useMemo(() => {
-      <>
+    const handleTopicClick = () => {
+      history.push(`/topics/${topicId}`);
+    };
+
+    return (
+        <Dimmer.Dimmable as={List.Item} onClick={handleTopicClick} blurring dimmed={loading} className="list-item">
+            <Dimmer>
+                <Loader />
+            </Dimmer>
+            <List.Icon name="user circle" size="big" inverted color="black" verticalAlign="middle" />
+            <List.Content>
                 <List.Header>
-              <List.Icon name="right triangle" />
+                    <Grid>
-              {topicSubject && topicSubject.subject}
+                        <Grid.Column floated="left" width={14}>
+                            {topicSubject !== null
+                              ? topicSubject
+                              : <Placeholder><Placeholder.Line length="very long" /></Placeholder>}
+                        </Grid.Column>
+                        <Grid.Column floated="right" width={2} textAlign="right">
+                            <span className="topic-metadata">
+                                {t('topic.list.row.topic.id', { id: topicId })}
+                            </span>
+                        </Grid.Column>
+                    </Grid>
                 </List.Header>
-          <List.Content>
+                <List.Description>
-              {username}
+                    <Grid verticalAlign="middle">
-              {numberOfReplies}
+                        <Grid.Column floated="left" width={14}>
-              {' '}
+                            {username !== null && timeAgo !== null
-              replies
+                              ? t('topic.list.row.author.date', { author: username, timeAgo })
-              {timestamp}
+                              : <Placeholder><Placeholder.Line length="long" /></Placeholder>}
+                        </Grid.Column>
+                        <Grid.Column floated="right" width={2} textAlign="right">
+                            {numberOfReplies !== null
+                              ? (
+                                  <span className="topic-metadata">
+                                      {t('topic.list.row.number.of.replies', { numberOfReplies })}
+                                  </span>
+                              )
+                              : <Placeholder fluid><Placeholder.Line /></Placeholder>}
+                        </Grid.Column>
+                    </Grid>
+                </List.Description>
             </List.Content>
-      </>
+        </Dimmer.Dimmable>
-  ), [topicSubject, username, numberOfReplies, timestamp]);
+    );
+  }, [history, loading, numberOfReplies, t, timeAgo, topicId, topicSubject, username]);
+};
+
+TopicListRow.defaultProps = {
+  loading: false,
 };
 
 TopicListRow.propTypes = {
   id: PropTypes.number.isRequired,
-  topicCallHash: PropTypes.string.isRequired,
+  topicCallHash: PropTypes.string,
+  loading: PropTypes.bool,
 };
 
 TopicListRow.whyDidYouRender = true;

packages/concordia-app/src/components/TopicList/TopicListRow/styles.css

@@ -0,0 +1,8 @@
+.topic-metadata {
+    font-size: 12px !important;
+    font-weight: initial;
+}
+
+.list-item {
+    text-align: start;
+}

packages/concordia-app/src/components/TopicList/index.jsx

@@ -4,11 +4,7 @@ import React, {
 import PropTypes from 'prop-types';
 import { useSelector } from 'react-redux';
 import { List } from 'semantic-ui-react';
-import { useHistory } from 'react-router';
 import TopicListRow from './TopicListRow';
-import { PLACEHOLDER_TYPE_TOPIC } from '../../constants/PlaceholderTypes';
-import Placeholder from '../Placeholder';
-import './styles.css';
 import { drizzle } from '../../redux/store';
 
 const { contracts: { Forum: { methods: { getTopic: { cacheCall: getTopicChainData } } } } } = drizzle;
@@ -18,7 +14,6 @@ const TopicList = (props) => {
   const [getTopicCallHashes, setGetTopicCallHashes] = useState([]);
   const drizzleInitialized = useSelector((state) => state.drizzleStatus.initialized);
   const drizzleInitializationFailed = useSelector((state) => state.drizzleStatus.failed);
-  const history = useHistory();
 
   useEffect(() => {
     if (drizzleInitialized && !drizzleInitializationFailed) {
@@ -44,27 +39,15 @@ const TopicList = (props) => {
     .map((topicId) => {
       const topicHash = getTopicCallHashes.find((getTopicCallHash) => getTopicCallHash.id === topicId);
 
-      const handleTopicClick = () => {
-        history.push(`/topics/${topicId}`);
-      };
-
-      if (topicHash) {
-        return (
-            <List.Item key={topicId} className="list-item" name={topicId} onClick={handleTopicClick}>
-                <TopicListRow id={topicId} topicCallHash={topicHash.hash} />
-            </List.Item>
-        );
-      }
-
       return (
-          <List.Item key={topicId} className="list-item" name={topicId} onClick={() => handleTopicClick(topicId)}>
+          <TopicListRow
-              <Placeholder
+            id={topicId}
-                placeholderType={PLACEHOLDER_TYPE_TOPIC}
+            key={topicId}
-                extra={{ topicId }}
+            topicCallHash={topicHash && topicHash.hash}
+            loading={topicHash === undefined}
           />
-          </List.Item>
       );
-    }), [getTopicCallHashes, history, topicIds]);
+    }), [getTopicCallHashes, topicIds]);
 
   return (
       <List selection divided id="topic-list" size="big">

packages/concordia-app/src/components/TopicList/styles.css

@@ -1,7 +1,3 @@
 #topic-list{
     height: 100%;
 }
-
-.list-item {
-    text-align: start;
-}

yarn.lock

@@ -11942,6 +11942,11 @@ mock-fs@^4.1.0:
   resolved "https://registry.yarnpkg.com/mock-fs/-/mock-fs-4.13.0.tgz#31c02263673ec3789f90eb7b6963676aa407a598"
   integrity sha512-DD0vOdofJdoaRNtnWcrXe6RQbpHkPPmtqGq14uRX0F8ZKJ5nv89CVTYl/BZdppDxBDaV0hl75htg3abpEWlPZA==
 
+moment@^2.29.1:
+  version "2.29.1"
+  resolved "https://registry.yarnpkg.com/moment/-/moment-2.29.1.tgz#b2be769fa31940be9eeea6469c075e35006fa3d3"
+  integrity sha512-kHmoybcPV8Sqy59DwNDY3Jefr64lK/by/da0ViFcuA4DH0vQg5Q6Ze5VimxkfQNSC+Mls/Kx53s7TjP1RhFEDQ==
+
 mortice@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/mortice/-/mortice-2.0.0.tgz#7be171409c2115561ba3fc035e4527f9082eefde"