Add ability to filter followed accounts' posts by language (#19095)

app/javascript/mastodon/features/account_timeline/components/header.js

@@ -22,6 +22,7 @@ export default class Header extends ImmutablePureComponent {
     onUnblockDomain: PropTypes.func.isRequired,
     onEndorseToggle: PropTypes.func.isRequired,
     onAddToList: PropTypes.func.isRequired,
+    onChangeLanguages: PropTypes.func.isRequired,
     hideTabs: PropTypes.bool,
     domain: PropTypes.string.isRequired,
     hidden: PropTypes.bool,
@@ -91,6 +92,10 @@ export default class Header extends ImmutablePureComponent {
     this.props.onEditAccountNote(this.props.account);
   }
 
+  handleChangeLanguages = () => {
+    this.props.onChangeLanguages(this.props.account);
+  }
+
   render () {
     const { account, hidden, hideTabs } = this.props;
 
@@ -117,6 +122,7 @@ export default class Header extends ImmutablePureComponent {
           onEndorseToggle={this.handleEndorseToggle}
           onAddToList={this.handleAddToList}
           onEditAccountNote={this.handleEditAccountNote}
+          onChangeLanguages={this.handleChangeLanguages}
           domain={this.props.domain}
           hidden={hidden}
         />

app/javascript/mastodon/features/account_timeline/containers/header_container.js

@@ -121,12 +121,18 @@ const mapDispatchToProps = (dispatch, { intl }) => ({
     dispatch(unblockDomain(domain));
   },
 
-  onAddToList(account){
+  onAddToList (account) {
     dispatch(openModal('LIST_ADDER', {
       accountId: account.get('id'),
     }));
   },
 
+  onChangeLanguages (account) {
+    dispatch(openModal('SUBSCRIBED_LANGUAGES', {
+      accountId: account.get('id'),
+    }));
+  },
+
 });
 
 export default injectIntl(connect(makeMapStateToProps, mapDispatchToProps)(Header));