Replace `Status#translatable?` with language matrix in separate endpoint (#24037)

4 files changed, 49 insertions, 3 deletions

diff --git a/app/javascript/mastodon/actions/server.js b/app/javascript/mastodon/actions/server.js
index 31d4aea10..091af0f0f 100644
--- a/app/javascript/mastodon/actions/server.js
+++ b/app/javascript/mastodon/actions/server.js
@@ -5,6 +5,10 @@ export const SERVER_FETCH_REQUEST = 'Server_FETCH_REQUEST';
 export const SERVER_FETCH_SUCCESS = 'Server_FETCH_SUCCESS';
 export const SERVER_FETCH_FAIL    = 'Server_FETCH_FAIL';
 
+export const SERVER_TRANSLATION_LANGUAGES_FETCH_REQUEST = 'SERVER_TRANSLATION_LANGUAGES_FETCH_REQUEST';
+export const SERVER_TRANSLATION_LANGUAGES_FETCH_SUCCESS = 'SERVER_TRANSLATION_LANGUAGES_FETCH_SUCCESS';
+export const SERVER_TRANSLATION_LANGUAGES_FETCH_FAIL    = 'SERVER_TRANSLATION_LANGUAGES_FETCH_FAIL';
+
 export const EXTENDED_DESCRIPTION_REQUEST = 'EXTENDED_DESCRIPTION_REQUEST';
 export const EXTENDED_DESCRIPTION_SUCCESS = 'EXTENDED_DESCRIPTION_SUCCESS';
 export const EXTENDED_DESCRIPTION_FAIL    = 'EXTENDED_DESCRIPTION_FAIL';
@@ -37,6 +41,29 @@ const fetchServerFail = error => ({
   error,
 });
 
+export const fetchServerTranslationLanguages = () => (dispatch, getState) => {
+  dispatch(fetchServerTranslationLanguagesRequest());
+
+  api(getState)
+    .get('/api/v1/instance/translation_languages').then(({ data }) => {
+      dispatch(fetchServerTranslationLanguagesSuccess(data));
+    }).catch(err => dispatch(fetchServerTranslationLanguagesFail(err)));
+};
+
+const fetchServerTranslationLanguagesRequest = () => ({
+  type: SERVER_TRANSLATION_LANGUAGES_FETCH_REQUEST,
+});
+
+const fetchServerTranslationLanguagesSuccess = translationLanguages => ({
+  type: SERVER_TRANSLATION_LANGUAGES_FETCH_SUCCESS,
+  translationLanguages,
+});
+
+const fetchServerTranslationLanguagesFail = error => ({
+  type: SERVER_TRANSLATION_LANGUAGES_FETCH_FAIL,
+  error,
+});
+
 export const fetchExtendedDescription = () => (dispatch, getState) => {
   dispatch(fetchExtendedDescriptionRequest());
 
diff --git a/app/javascript/mastodon/components/status_content.jsx b/app/javascript/mastodon/components/status_content.jsx
index f9c9fe079..67a487b00 100644
--- a/app/javascript/mastodon/components/status_content.jsx
+++ b/app/javascript/mastodon/components/status_content.jsx
@@ -3,6 +3,7 @@ import ImmutablePropTypes from 'react-immutable-proptypes';
 import PropTypes from 'prop-types';
 import { FormattedMessage, injectIntl } from 'react-intl';
 import { Link } from 'react-router-dom';
+import { connect } from 'react-redux';
 import classnames from 'classnames';
 import PollContainer from 'mastodon/containers/poll_container';
 import Icon from 'mastodon/components/icon';
@@ -47,7 +48,12 @@ class TranslateButton extends React.PureComponent {
 
 }
 
-export default @injectIntl
+const mapStateToProps = state => ({
+  languages: state.getIn(['server', 'translationLanguages', 'items']),
+});
+
+export default @connect(mapStateToProps)
+@injectIntl
 class StatusContent extends React.PureComponent {
 
   static contextTypes = {
@@ -63,6 +69,7 @@ class StatusContent extends React.PureComponent {
     onClick: PropTypes.func,
     collapsable: PropTypes.bool,
     onCollapsedToggle: PropTypes.func,
+    languages: ImmutablePropTypes.map,
     intl: PropTypes.object,
   };
 
@@ -220,7 +227,9 @@ class StatusContent extends React.PureComponent {
 
     const hidden = this.props.onExpandedToggle ? !this.props.expanded : this.state.hidden;
     const renderReadMore = this.props.onClick && status.get('collapsed');
-    const renderTranslate = this.props.onTranslate && status.get('translatable');
+    const contentLocale = intl.locale.replace(/[_-].*/, '');
+    const targetLanguages = this.props.languages?.get(status.get('language') || 'und');
+    const renderTranslate = this.props.onTranslate && this.context.identity.signedIn && ['public', 'unlisted'].includes(status.get('visibility')) && status.get('contentHtml').length > 0 && targetLanguages?.includes(contentLocale);
 
     const content = { __html: status.get('translation') ? status.getIn(['translation', 'content']) : status.get('contentHtml') };
     const spoilerContent = { __html: status.get('spoilerHtml') };
diff --git a/app/javascript/mastodon/features/ui/index.jsx b/app/javascript/mastodon/features/ui/index.jsx
index 2dd59f95d..083707220 100644
--- a/app/javascript/mastodon/features/ui/index.jsx
+++ b/app/javascript/mastodon/features/ui/index.jsx
@@ -13,7 +13,7 @@ import { debounce } from 'lodash';
 import { uploadCompose, resetCompose, changeComposeSpoilerness } from '../../actions/compose';
 import { expandHomeTimeline } from '../../actions/timelines';
 import { expandNotifications } from '../../actions/notifications';
-import { fetchServer } from '../../actions/server';
+import { fetchServer, fetchServerTranslationLanguages } from '../../actions/server';
 import { clearHeight } from '../../actions/height_cache';
 import { focusApp, unfocusApp, changeLayout } from 'mastodon/actions/app';
 import { synchronouslySubmitMarkers, submitMarkers, fetchMarkers } from 'mastodon/actions/markers';
@@ -399,6 +399,7 @@ class UI extends React.PureComponent {
       this.props.dispatch(fetchMarkers());
       this.props.dispatch(expandHomeTimeline());
       this.props.dispatch(expandNotifications());
+      this.props.dispatch(fetchServerTranslationLanguages());
 
       setTimeout(() => this.props.dispatch(fetchServer()), 3000);
     }
diff --git a/app/javascript/mastodon/reducers/server.js b/app/javascript/mastodon/reducers/server.js
index db9f2b5e6..909ab2a66 100644
--- a/app/javascript/mastodon/reducers/server.js
+++ b/app/javascript/mastodon/reducers/server.js
@@ -2,6 +2,9 @@ import {
   SERVER_FETCH_REQUEST,
   SERVER_FETCH_SUCCESS,
   SERVER_FETCH_FAIL,
+  SERVER_TRANSLATION_LANGUAGES_FETCH_REQUEST,
+  SERVER_TRANSLATION_LANGUAGES_FETCH_SUCCESS,
+  SERVER_TRANSLATION_LANGUAGES_FETCH_FAIL,
   EXTENDED_DESCRIPTION_REQUEST,
   EXTENDED_DESCRIPTION_SUCCESS,
   EXTENDED_DESCRIPTION_FAIL,
@@ -35,6 +38,12 @@ export default function server(state = initialState, action) {
     return state.set('server', fromJS(action.server)).setIn(['server', 'isLoading'], false);
   case SERVER_FETCH_FAIL:
     return state.setIn(['server', 'isLoading'], false);
+  case SERVER_TRANSLATION_LANGUAGES_FETCH_REQUEST:
+    return state.setIn(['translationLanguages', 'isLoading'], true);
+  case SERVER_TRANSLATION_LANGUAGES_FETCH_SUCCESS:
+    return state.setIn(['translationLanguages', 'items'], fromJS(action.translationLanguages)).setIn(['translationLanguages', 'isLoading'], false);
+  case SERVER_TRANSLATION_LANGUAGES_FETCH_FAIL:
+    return state.setIn(['translationLanguages', 'isLoading'], false);
   case EXTENDED_DESCRIPTION_REQUEST:
     return state.setIn(['extendedDescription', 'isLoading'], true);
   case EXTENDED_DESCRIPTION_SUCCESS: