1 files changed, 241 insertions, 0 deletions
diff --git a/app/javascript/mastodon/features/hashtag_timeline/index.jsx b/app/javascript/mastodon/features/hashtag_timeline/index.jsx
new file mode 100644
index 000000000..a244dbdb2
--- /dev/null
+++ b/app/javascript/mastodon/features/hashtag_timeline/index.jsx
@@ -0,0 +1,241 @@
+import React from 'react';
+import { connect } from 'react-redux';
+import PropTypes from 'prop-types';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import StatusListContainer from '../ui/containers/status_list_container';
+import Column from 'mastodon/components/column';
+import ColumnHeader from 'mastodon/components/column_header';
+import ColumnSettingsContainer from './containers/column_settings_container';
+import { expandHashtagTimeline, clearTimeline } from 'mastodon/actions/timelines';
+import { addColumn, removeColumn, moveColumn } from 'mastodon/actions/columns';
+import { injectIntl, FormattedMessage, defineMessages } from 'react-intl';
+import { connectHashtagStream } from 'mastodon/actions/streaming';
+import { isEqual } from 'lodash';
+import { fetchHashtag, followHashtag, unfollowHashtag } from 'mastodon/actions/tags';
+import Icon from 'mastodon/components/icon';
+import classNames from 'classnames';
+import { Helmet } from 'react-helmet';
+
+const messages = defineMessages({
+  followHashtag: { id: 'hashtag.follow', defaultMessage: 'Follow hashtag' },
+  unfollowHashtag: { id: 'hashtag.unfollow', defaultMessage: 'Unfollow hashtag' },
+});
+
+const mapStateToProps = (state, props) => ({
+  hasUnread: state.getIn(['timelines', `hashtag:${props.params.id}${props.params.local ? ':local' : ''}`, 'unread']) > 0,
+  tag: state.getIn(['tags', props.params.id]),
+});
+
+class HashtagTimeline extends React.PureComponent {
+
+  disconnects = [];
+
+  static contextTypes = {
+    identity: PropTypes.object,
+  };
+
+  static propTypes = {
+    params: PropTypes.object.isRequired,
+    columnId: PropTypes.string,
+    dispatch: PropTypes.func.isRequired,
+    hasUnread: PropTypes.bool,
+    tag: ImmutablePropTypes.map,
+    multiColumn: PropTypes.bool,
+    intl: PropTypes.object,
+  };
+
+  handlePin = () => {
+    const { columnId, dispatch } = this.props;
+
+    if (columnId) {
+      dispatch(removeColumn(columnId));
+    } else {
+      dispatch(addColumn('HASHTAG', { id: this.props.params.id }));
+    }
+  };
+
+  title = () => {
+    const { id } = this.props.params;
+    const title  = [id];
+
+    if (this.additionalFor('any')) {
+      title.push(' ', <FormattedMessage key='any' id='hashtag.column_header.tag_mode.any'  values={{ additional: this.additionalFor('any') }} defaultMessage='or {additional}' />);
+    }
+
+    if (this.additionalFor('all')) {
+      title.push(' ', <FormattedMessage key='all' id='hashtag.column_header.tag_mode.all'  values={{ additional: this.additionalFor('all') }} defaultMessage='and {additional}' />);
+    }
+
+    if (this.additionalFor('none')) {
+      title.push(' ', <FormattedMessage key='none' id='hashtag.column_header.tag_mode.none' values={{ additional: this.additionalFor('none') }} defaultMessage='without {additional}' />);
+    }
+
+    return title;
+  };
+
+  additionalFor = (mode) => {
+    const { tags } = this.props.params;
+
+    if (tags && (tags[mode] || []).length > 0) {
+      return tags[mode].map(tag => tag.value).join('/');
+    } else {
+      return '';
+    }
+  };
+
+  handleMove = (dir) => {
+    const { columnId, dispatch } = this.props;
+    dispatch(moveColumn(columnId, dir));
+  };
+
+  handleHeaderClick = () => {
+    this.column.scrollTop();
+  };
+
+  _subscribe (dispatch, id, tags = {}, local) {
+    const { signedIn } = this.context.identity;
+
+    if (!signedIn) {
+      return;
+    }
+
+    let any  = (tags.any || []).map(tag => tag.value);
+    let all  = (tags.all || []).map(tag => tag.value);
+    let none = (tags.none || []).map(tag => tag.value);
+
+    [id, ...any].map(tag => {
+      this.disconnects.push(dispatch(connectHashtagStream(id, tag, local, status => {
+        let tags = status.tags.map(tag => tag.name);
+
+        return all.filter(tag => tags.includes(tag)).length === all.length &&
+               none.filter(tag => tags.includes(tag)).length === 0;
+      })));
+    });
+  }
+
+  _unsubscribe () {
+    this.disconnects.map(disconnect => disconnect());
+    this.disconnects = [];
+  }
+
+  _unload () {
+    const { dispatch } = this.props;
+    const { id, local } = this.props.params;
+
+    this._unsubscribe();
+    dispatch(clearTimeline(`hashtag:${id}${local ? ':local' : ''}`));
+  }
+
+  _load() {
+    const { dispatch } = this.props;
+    const { id, tags, local } = this.props.params;
+
+    this._subscribe(dispatch, id, tags, local);
+    dispatch(expandHashtagTimeline(id, { tags, local }));
+    dispatch(fetchHashtag(id));
+  }
+
+  componentDidMount () {
+    this._load();
+  }
+
+  componentDidUpdate (prevProps) {
+    const { params } = this.props;
+    const { id, tags, local } = prevProps.params;
+
+    if (id !== params.id || !isEqual(tags, params.tags) || !isEqual(local, params.local)) {
+      this._unload();
+      this._load();
+    }
+  }
+
+  componentWillUnmount () {
+    this._unsubscribe();
+  }
+
+  setRef = c => {
+    this.column = c;
+  };
+
+  handleLoadMore = maxId => {
+    const { dispatch, params } = this.props;
+    const { id, tags, local }  = params;
+
+    dispatch(expandHashtagTimeline(id, { maxId, tags, local }));
+  };
+
+  handleFollow = () => {
+    const { dispatch, params, tag } = this.props;
+    const { id } = params;
+    const { signedIn } = this.context.identity;
+
+    if (!signedIn) {
+      return;
+    }
+
+    if (tag.get('following')) {
+      dispatch(unfollowHashtag(id));
+    } else {
+      dispatch(followHashtag(id));
+    }
+  };
+
+  render () {
+    const { hasUnread, columnId, multiColumn, tag, intl } = this.props;
+    const { id, local } = this.props.params;
+    const pinned = !!columnId;
+    const { signedIn } = this.context.identity;
+
+    let followButton;
+
+    if (tag) {
+      const following = tag.get('following');
+
+      const classes = classNames('column-header__button', {
+        active: following,
+      });
+
+      followButton = (
+        <button className={classes} onClick={this.handleFollow} disabled={!signedIn} title={intl.formatMessage(following ? messages.unfollowHashtag : messages.followHashtag)} aria-label={intl.formatMessage(following ? messages.unfollowHashtag : messages.followHashtag)}>
+          <Icon id={following ? 'user-times' : 'user-plus'} fixedWidth className='column-header__icon' />
+        </button>
+      );
+    }
+
+    return (
+      <Column bindToDocument={!multiColumn} ref={this.setRef} label={`#${id}`}>
+        <ColumnHeader
+          icon='hashtag'
+          active={hasUnread}
+          title={this.title()}
+          onPin={this.handlePin}
+          onMove={this.handleMove}
+          onClick={this.handleHeaderClick}
+          pinned={pinned}
+          multiColumn={multiColumn}
+          extraButton={followButton}
+          showBackButton
+        >
+          {columnId && <ColumnSettingsContainer columnId={columnId} />}
+        </ColumnHeader>
+
+        <StatusListContainer
+          trackScroll={!pinned}
+          scrollKey={`hashtag_timeline-${columnId}`}
+          timelineId={`hashtag:${id}${local ? ':local' : ''}`}
+          onLoadMore={this.handleLoadMore}
+          emptyMessage={<FormattedMessage id='empty_column.hashtag' defaultMessage='There is nothing in this hashtag yet.' />}
+          bindToDocument={!multiColumn}
+        />
+
+        <Helmet>
+          <title>#{id}</title>
+          <meta name='robots' content='noindex' />
+        </Helmet>
+      </Column>
+    );
+  }
+
+}
+
+export default connect(mapStateToProps)(injectIntl(HashtagTimeline));