Fix #463 - Fetch and display previews of URLs using OpenGraph tags

app/assets/javascripts/components/actions/cards.jsx

@@ -0,0 +1,40 @@
+import api from '../api';
+
+export const STATUS_CARD_FETCH_REQUEST = 'STATUS_CARD_FETCH_REQUEST';
+export const STATUS_CARD_FETCH_SUCCESS = 'STATUS_CARD_FETCH_SUCCESS';
+export const STATUS_CARD_FETCH_FAIL    = 'STATUS_CARD_FETCH_FAIL';
+
+export function fetchStatusCard(id) {
+  return (dispatch, getState) => {
+    dispatch(fetchStatusCardRequest(id));
+
+    api(getState).get(`/api/v1/statuses/${id}/card`).then(response => {
+      dispatch(fetchStatusCardSuccess(id, response.data));
+    }).catch(error => {
+      dispatch(fetchStatusCardFail(id, error));
+    });
+  };
+};
+
+export function fetchStatusCardRequest(id) {
+  return {
+    type: STATUS_CARD_FETCH_REQUEST,
+    id
+  };
+};
+
+export function fetchStatusCardSuccess(id, card) {
+  return {
+    type: STATUS_CARD_FETCH_SUCCESS,
+    id,
+    card
+  };
+};
+
+export function fetchStatusCardFail(id, error) {
+  return {
+    type: STATUS_CARD_FETCH_FAIL,
+    id,
+    error
+  };
+};

app/assets/javascripts/components/actions/statuses.jsx

@@ -1,6 +1,7 @@
 import api from '../api';
 
 import { deleteFromTimelines } from './timelines';
+import { fetchStatusCard } from './cards';
 
 export const STATUS_FETCH_REQUEST = 'STATUS_FETCH_REQUEST';
 export const STATUS_FETCH_SUCCESS = 'STATUS_FETCH_SUCCESS';
@@ -31,6 +32,7 @@ export function fetchStatus(id) {
     api(getState).get(`/api/v1/statuses/${id}`).then(response => {
       dispatch(fetchStatusSuccess(response.data, skipLoading));
       dispatch(fetchContext(id));
+      dispatch(fetchStatusCard(id));
     }).catch(error => {
       dispatch(fetchStatusFail(id, error, skipLoading));
     });

app/assets/javascripts/components/features/status/components/card.jsx

@@ -0,0 +1,96 @@
+import PureRenderMixin from 'react-addons-pure-render-mixin';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+
+const outerStyle = {
+  display: 'flex',
+  cursor: 'pointer',
+  fontSize: '14px',
+  border: '1px solid #363c4b',
+  borderRadius: '4px',
+  color: '#616b86',
+  marginTop: '14px',
+  textDecoration: 'none',
+  overflow: 'hidden'
+};
+
+const contentStyle = {
+  flex: '2',
+  padding: '8px',
+  paddingLeft: '14px'
+};
+
+const titleStyle = {
+  display: 'block',
+  fontWeight: '500',
+  marginBottom: '5px',
+  color: '#d9e1e8'
+};
+
+const descriptionStyle = {
+  color: '#d9e1e8'
+};
+
+const imageOuterStyle = {
+  flex: '1',
+  background: '#373b4a'
+};
+
+const imageStyle = {
+  display: 'block',
+  width: '100%',
+  height: 'auto',
+  margin: '0',
+  borderRadius: '4px 0 0 4px'
+};
+
+const hostStyle = {
+  display: 'block',
+  marginTop: '5px',
+  fontSize: '13px'
+};
+
+const getHostname = url => {
+  const parser = document.createElement('a');
+  parser.href = url;
+  return parser.hostname;
+};
+
+const Card = React.createClass({
+  propTypes: {
+    card: ImmutablePropTypes.map
+  },
+
+  mixins: [PureRenderMixin],
+
+  render () {
+    const { card } = this.props;
+
+    if (card === null) {
+      return null;
+    }
+
+    let image = '';
+
+    if (card.get('image')) {
+      image = (
+        <div style={imageOuterStyle}>
+          <img src={card.get('image')} alt={card.get('title')} style={imageStyle} />
+        </div>
+      );
+    }
+
+    return (
+      <a style={outerStyle} href={card.get('url')} className='status-card'>
+        {image}
+
+        <div style={contentStyle}>
+          <strong style={titleStyle}>{card.get('title')}</strong>
+          <p style={descriptionStyle}>{card.get('description')}</p>
+          <span style={hostStyle}>{getHostname(card.get('url'))}</span>
+        </div>
+      </a>
+    );
+  }
+});
+
+export default Card;

app/assets/javascripts/components/features/status/components/detailed_status.jsx

@@ -7,6 +7,7 @@ import MediaGallery from '../../../components/media_gallery';
 import VideoPlayer from '../../../components/video_player';
 import { Link } from 'react-router';
 import { FormattedDate, FormattedNumber } from 'react-intl';
+import CardContainer from '../containers/card_container';
 
 const DetailedStatus = React.createClass({
 
@@ -42,6 +43,8 @@ const DetailedStatus = React.createClass({
       } else {
         media = <MediaGallery sensitive={status.get('sensitive')} media={status.get('media_attachments')} height={300} onOpenMedia={this.props.onOpenMedia} />;
       }
+    } else {
+      media = <CardContainer statusId={status.get('id')} />;
     }
 
     if (status.get('application')) {

app/assets/javascripts/components/features/status/containers/card_container.jsx

@@ -0,0 +1,8 @@
+import { connect } from 'react-redux';
+import Card from '../components/card';
+
+const mapStateToProps = (state, { statusId }) => ({
+  card: state.getIn(['cards', statusId], null)
+});
+
+export default connect(mapStateToProps)(Card);

app/assets/javascripts/components/reducers/cards.jsx

@@ -0,0 +1,14 @@
+import { STATUS_CARD_FETCH_SUCCESS } from '../actions/cards';
+
+import Immutable from 'immutable';
+
+const initialState = Immutable.Map();
+
+export default function cards(state = initialState, action) {
+  switch(action.type) {
+  case STATUS_CARD_FETCH_SUCCESS:
+    return state.set(action.id, Immutable.fromJS(action.card));
+  default:
+    return state;
+  }
+};

app/assets/javascripts/components/reducers/index.jsx

@@ -13,6 +13,7 @@ import search from './search';
 import notifications from './notifications';
 import settings from './settings';
 import status_lists from './status_lists';
+import cards from './cards';
 
 export default combineReducers({
   timelines,
@@ -28,5 +29,6 @@ export default combineReducers({
   relationships,
   search,
   notifications,
-  settings
+  settings,
+  cards
 });

app/assets/stylesheets/components.scss

@@ -680,3 +680,9 @@ button.active i.fa-retweet {
   transition-duration: 0.9s;
   background-position: 0 -209px;
 }
+
+.status-card {
+  &:hover {
+    background: #363c4b;
+  }
+}