Use ScrollableList for search results

Signed-off-by: marcin mikołajczak <git@mkljczk.pl>

app/soapbox/actions/search.js

@@ -95,7 +95,7 @@ export const expandSearch = type => (dispatch, getState) => {
   const value  = getState().getIn(['search', 'value']);
   const offset = getState().getIn(['search', 'results', type]).size;
 
-  dispatch(expandSearchRequest());
+  dispatch(expandSearchRequest(type));
 
   api(getState).get('/api/v2/search', {
     params: {
@@ -119,8 +119,9 @@ export const expandSearch = type => (dispatch, getState) => {
   });
 };
 
-export const expandSearchRequest = () => ({
+export const expandSearchRequest = (searchType) => ({
   type: SEARCH_EXPAND_REQUEST,
+  searchType,
 });
 
 export const expandSearchSuccess = (results, searchTerm, searchType) => ({

app/soapbox/features/compose/components/search_results.js

@@ -6,12 +6,13 @@ import AccountContainer from '../../../containers/account_container';
 import StatusContainer from '../../../containers/status_container';
 import ImmutablePureComponent from 'react-immutable-pure-component';
 import Hashtag from '../../../components/hashtag';
-import LoadingIndicator from 'soapbox/components/loading_indicator';
 import FilterBar from '../../search/components/filter_bar';
-import LoadMore from '../../../components/load_more';
 import BundleContainer from 'soapbox/features/ui/containers/bundle_container';
 import { WhoToFollowPanel } from 'soapbox/features/ui/util/async-components';
-import classNames from 'classnames';
+import ScrollableList from 'soapbox/components/scrollable_list';
+import PlaceholderAccount from 'soapbox/features/placeholder/components/placeholder_account';
+import PlaceholderHashtag from 'soapbox/features/placeholder/components/placeholder_hashtag';
+import PlaceholderStatus from 'soapbox/features/placeholder/components/placeholder_status';
 
 export default class SearchResults extends ImmutablePureComponent {
 
@@ -32,13 +33,7 @@ export default class SearchResults extends ImmutablePureComponent {
   render() {
     const { value, results, submitted, selectedFilter, features } = this.props;
 
-    if (submitted && results.isEmpty()) {
-      return (
-        <div className='search-results'>
-          <LoadingIndicator />
-        </div>
-      );
-    } else if (features.suggestions && results.isEmpty()) {
+    if (!submitted && features.suggestions && results.isEmpty()) {
       return (
         <BundleContainer fetchComponent={WhoToFollowPanel}>
           {Component => <Component limit={5} />}
@@ -48,15 +43,19 @@ export default class SearchResults extends ImmutablePureComponent {
 
     let searchResults;
     let hasMore = false;
+    let loaded;
+    let noResultsMessage;
+    let placeholderComponent = PlaceholderStatus;
 
     if (selectedFilter === 'accounts' && results.get('accounts')) {
       hasMore = results.get('accountsHasMore');
+      loaded = results.get('accountsLoaded');
+      placeholderComponent = PlaceholderAccount;
 
-      searchResults = results.get('accounts').size > 0 ? (
-        <div className={classNames('search-results__section', { 'has-more': hasMore })}>
-          {results.get('accounts').map(accountId => <AccountContainer key={accountId} id={accountId} />)}
-        </div>
-      ) : (
+      if (results.get('accounts').size > 0) {
+        searchResults = results.get('accounts').map(accountId => <AccountContainer key={accountId} id={accountId} />);
+      } else {
+        noResultsMessage = (
           <div className='empty-column-indicator'>
             <FormattedMessage
               id='empty_column.search.accounts'
@@ -66,15 +65,16 @@ export default class SearchResults extends ImmutablePureComponent {
           </div>
         );
       }
+    }
 
     if (selectedFilter === 'statuses' && results.get('statuses')) {
       hasMore = results.get('statusesHasMore');
+      loaded = results.get('statusesLoaded');
 
-      searchResults = results.get('statuses').size > 0 ? (
-        <div className={classNames('search-results__section', { 'has-more': hasMore })}>
-          {results.get('statuses').map(statusId => <StatusContainer key={statusId} id={statusId} />)}
-        </div>
-      ) : (
+      if (results.get('statuses').size > 0) {
+        searchResults = results.get('statuses').map(statusId => <StatusContainer key={statusId} id={statusId} />);
+      } else {
+        noResultsMessage = (
           <div className='empty-column-indicator'>
             <FormattedMessage
               id='empty_column.search.statuses'
@@ -84,15 +84,17 @@ export default class SearchResults extends ImmutablePureComponent {
           </div>
         );
       }
+    }
 
     if (selectedFilter === 'hashtags' && results.get('hashtags')) {
       hasMore = results.get('hashtagsHasMore');
+      loaded = results.get('hashtagsLoaded');
+      placeholderComponent = PlaceholderHashtag;
 
-      searchResults = results.get('hashtags').size > 0 ? (
-        <div className={classNames('search-results__section', { 'has-more': hasMore })}>
-          {results.get('hashtags').map(hashtag => <Hashtag key={hashtag.get('name')} hashtag={hashtag} />)}
-        </div>
-      ) : (
+      if (results.get('hashtags').size > 0) {
+        searchResults = results.get('hashtags').map(hashtag => <Hashtag key={hashtag.get('name')} hashtag={hashtag} />);
+      } else {
+        noResultsMessage = (
           <div className='empty-column-indicator'>
             <FormattedMessage
               id='empty_column.search.hashtags'
@@ -102,14 +104,26 @@ export default class SearchResults extends ImmutablePureComponent {
           </div>
         );
       }
+    }
 
     return (
       <>
         {submitted && <FilterBar selectedFilter={submitted ? selectedFilter : null} selectFilter={this.handleSelectFilter} />}
 
+        {noResultsMessage || (
+          <ScrollableList
+            key={selectedFilter}
+            scrollKey={`${selectedFilter}:${value}`}
+            isLoading={submitted && !loaded}
+            showLoading={submitted && !loaded && results.isEmpty()}
+            hasMore={hasMore}
+            onLoadMore={this.handleLoadMore}
+            placeholderComponent={placeholderComponent}
+            placeholderCount={20}
+          >
             {searchResults}
-
-        {hasMore && <LoadMore visible onClick={this.handleLoadMore} />}
+          </ScrollableList>
+        )}
       </>
     );
   }

app/soapbox/features/placeholder/components/placeholder_hashtag.js

@@ -0,0 +1,20 @@
+import React from 'react';
+import { generateText, randomIntFromInterval } from '../utils';
+
+export default class PlaceholderHashtag extends React.Component {
+
+  render() {
+    const length = randomIntFromInterval(15, 30);
+
+    return (
+      <div className='placeholder-hashtag'>
+        <div className='trends__item'>
+          <div className='trends__item__name'>
+            {generateText(length)}
+          </div>
+        </div>
+      </div>
+    );
+  }
+
+}

app/soapbox/reducers/search.js

@@ -5,6 +5,7 @@ import {
   SEARCH_FETCH_SUCCESS,
   SEARCH_SHOW,
   SEARCH_FILTER_SET,
+  SEARCH_EXPAND_REQUEST,
   SEARCH_EXPAND_SUCCESS,
 } from '../actions/search';
 import {
@@ -28,7 +29,6 @@ export default function search(state = initialState, action) {
   case SEARCH_CHANGE:
     return state.withMutations(map => {
       map.set('value', action.value);
-      map.set('submitted', false);
     });
   case SEARCH_CLEAR:
     return state.withMutations(map => {
@@ -58,6 +58,9 @@ export default function search(state = initialState, action) {
       accountsHasMore: action.results.accounts.length >= 20,
       statusesHasMore: action.results.statuses.length >= 20,
       hashtagsHasMore: action.results.hashtags.length >= 20,
+      accountsLoaded: true,
+      statusesLoaded: true,
+      hashtagsLoaded: true,
     })).set('submitted', true).set('filter', action.results.accounts.length > 0
       ? 'accounts'
       : action.results.statuses.length > 0
@@ -67,9 +70,12 @@ export default function search(state = initialState, action) {
           : 'accounts');
   case SEARCH_FILTER_SET:
     return state.set('filter', action.value);
+  case SEARCH_EXPAND_REQUEST:
+    return state.setIn(['results', `${action.searchType}Loaded`], false);
   case SEARCH_EXPAND_SUCCESS:
     return state.withMutations((state) => {
       state.setIn(['results', `${action.searchType}HasMore`], action.results[action.searchType].length >= 20);
+      state.setIn(['results', `${action.searchType}Loaded`], true);
       state.updateIn(['results', action.searchType], list => list.concat(action.results[action.searchType].map(item => item.id)));
     });
   default:

app/styles/placeholder.scss

@@ -1,4 +1,5 @@
 .placeholder-status,
+.placeholder-hashtag,
 .notification--placeholder {
   position: relative;