Add messages informing that collections are empty (fixes #4115) (#8418)

* Add messages informing that collections are empty

Adds empty messages to blocked users, domain blocks, favourited statuses, users
that favourited toot, follow requests, followers of given user, user's being
followed by given user, lists, muted users, toots' boosts.

Switched from using ScrollContainer to ScrollableList and/or added empty
message's text.

Fixes #4115

* Update localization files with strings for #4115

* Fix whitespace issues pointed out by codeclimate

1 files changed, 18 insertions, 16 deletions

diff --git a/app/javascript/mastodon/features/blocks/index.js b/app/javascript/mastodon/features/blocks/index.js
index 0b88e50ae..68661a37c 100644
--- a/app/javascript/mastodon/features/blocks/index.js
+++ b/app/javascript/mastodon/features/blocks/index.js
@@ -1,15 +1,16 @@
 import React from 'react';
 import { connect } from 'react-redux';
-import { defineMessages, injectIntl } from 'react-intl';
+import { defineMessages, injectIntl, FormattedMessage } from 'react-intl';
 import ImmutablePureComponent from 'react-immutable-pure-component';
 import ImmutablePropTypes from 'react-immutable-proptypes';
+import { debounce } from 'lodash';
 import PropTypes from 'prop-types';
 import LoadingIndicator from '../../components/loading_indicator';
-import { ScrollContainer } from 'react-router-scroll-4';
 import Column from '../ui/components/column';
 import ColumnBackButtonSlim from '../../components/column_back_button_slim';
 import AccountContainer from '../../containers/account_container';
 import { fetchBlocks, expandBlocks } from '../../actions/blocks';
+import ScrollableList from '../../components/scrollable_list';
 
 const messages = defineMessages({
   heading: { id: 'column.blocks', defaultMessage: 'Blocked users' },
@@ -35,13 +36,9 @@ export default class Blocks extends ImmutablePureComponent {
     this.props.dispatch(fetchBlocks());
   }
 
-  handleScroll = (e) => {
-    const { scrollTop, scrollHeight, clientHeight } = e.target;
-
-    if (scrollTop === scrollHeight - clientHeight) {
-      this.props.dispatch(expandBlocks());
-    }
-  }
+  handleLoadMore = debounce(() => {
+    this.props.dispatch(expandBlocks());
+  }, 300, { leading: true });
 
   render () {
     const { intl, accountIds, shouldUpdateScroll } = this.props;
@@ -54,16 +51,21 @@ export default class Blocks extends ImmutablePureComponent {
       );
     }
 
+    const emptyMessage = <FormattedMessage id='empty_column.blocks' defaultMessage="You haven't blocked any users yet." />;
+
     return (
       <Column icon='ban' heading={intl.formatMessage(messages.heading)}>
         <ColumnBackButtonSlim />
-        <ScrollContainer scrollKey='blocks' shouldUpdateScroll={shouldUpdateScroll}>
-          <div className='scrollable' onScroll={this.handleScroll}>
-            {accountIds.map(id =>
-              <AccountContainer key={id} id={id} />
-            )}
-          </div>
-        </ScrollContainer>
+        <ScrollableList
+          scrollKey='blocks'
+          onLoadMore={this.handleLoadMore}
+          shouldUpdateScroll={shouldUpdateScroll}
+          emptyMessage={emptyMessage}
+        >
+          {accountIds.map(id =>
+            <AccountContainer key={id} id={id} />
+          )}
+        </ScrollableList>
       </Column>
     );
   }