Allow joining several hashtags in a single column (#8904)

* Nascent tag menu on frontend

* Hook up frontend to search

* Tag intersection backend first pass

* Update yarnlock

* WIP

* Fix for tags not searching correctly

* Make radio buttons function

* Simplify radio buttons with modeOption

* Better naming

* Rearrange options

* Add all/any/none functionality on backend

* Small PR cleanup

* Move to service from scope

* Small cleanup, add proper service tests

* Don't use send with user input :D

* Set appropriate column header

* Handle auto updating timeline

* Fix up toggle function

* Use tag value correctly

* A bit more correct to use 'self' rather than 'all' in status scope

* Fix some style issues

* Fix more code style issues

* Style select dropdown more better

* Only use to_id'ed value to ensure no SQL injection

* Revamp frontend to allow for multiple selects

* Update backend / col header to account for more flexible tagging

* Update brakeman ignore

* Codeclimate suggestions

* Fix presenter tag_url

* Implement initial PR feedback

* Handle additional tag streaming

* CodeClimate tweak

3 files changed, 189 insertions, 16 deletions

diff --git a/app/javascript/mastodon/features/hashtag_timeline/components/column_settings.js b/app/javascript/mastodon/features/hashtag_timeline/components/column_settings.js
new file mode 100644
index 000000000..82936c838
--- /dev/null
+++ b/app/javascript/mastodon/features/hashtag_timeline/components/column_settings.js
@@ -0,0 +1,102 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import { injectIntl, FormattedMessage } from 'react-intl';
+import Toggle from 'react-toggle';
+import AsyncSelect from 'react-select/lib/Async';
+
+@injectIntl
+export default class ColumnSettings extends React.PureComponent {
+
+  static propTypes = {
+    settings: ImmutablePropTypes.map.isRequired,
+    onChange: PropTypes.func.isRequired,
+    onLoad: PropTypes.func.isRequired,
+    intl: PropTypes.object.isRequired,
+  };
+
+  state = {
+    open: this.hasTags(),
+  };
+
+  hasTags () {
+    return ['all', 'any', 'none'].map(mode => this.tags(mode).length > 0).includes(true);
+  }
+
+  tags (mode) {
+    let tags = this.props.settings.getIn(['tags', mode]) || [];
+    if (tags.toJSON) {
+      return tags.toJSON();
+    } else {
+      return tags;
+    }
+  };
+
+  onSelect = (mode) => {
+    return (value) => {
+      this.props.onChange(['tags', mode], value);
+    };
+  };
+
+  onToggle = () => {
+    if (this.state.open && this.hasTags()) {
+      this.props.onChange('tags', {});
+    }
+    this.setState({ open: !this.state.open });
+  };
+
+  modeSelect (mode) {
+    return (
+      <div className='column-settings__section'>
+        {this.modeLabel(mode)}
+        <AsyncSelect
+          isMulti
+          autoFocus
+          value={this.tags(mode)}
+          settings={this.props.settings}
+          settingPath={['tags', mode]}
+          onChange={this.onSelect(mode)}
+          loadOptions={this.props.onLoad}
+          classNamePrefix='column-settings__hashtag-select'
+          name='tags'
+        />
+      </div>
+    );
+  }
+
+  modeLabel (mode) {
+    switch(mode) {
+    case 'any':  return <FormattedMessage id='hashtag.column_settings.tag_mode.any' defaultMessage='Any of these' />;
+    case 'all':  return <FormattedMessage id='hashtag.column_settings.tag_mode.all' defaultMessage='All of these' />;
+    case 'none': return <FormattedMessage id='hashtag.column_settings.tag_mode.none' defaultMessage='None of these' />;
+    }
+    return '';
+  };
+
+  render () {
+    return (
+      <div>
+        <div className='column-settings__row'>
+          <div className='setting-toggle'>
+            <Toggle
+              id='hashtag.column_settings.tag_toggle'
+              onChange={this.onToggle}
+              checked={this.state.open}
+            />
+            <span className='setting-toggle__label'>
+              <FormattedMessage id='hashtag.column_settings.tag_toggle' defaultMessage='Include additional tags in this column' />
+            </span>
+          </div>
+        </div>
+        {this.state.open &&
+          <div className='column-settings__hashtags'>
+            {this.modeSelect('any')}
+            {this.modeSelect('all')}
+            {this.modeSelect('none')}
+          </div>
+        }
+      </div>
+    );
+  }
+
+}
diff --git a/app/javascript/mastodon/features/hashtag_timeline/containers/column_settings_container.js b/app/javascript/mastodon/features/hashtag_timeline/containers/column_settings_container.js
new file mode 100644
index 000000000..c5098052c
--- /dev/null
+++ b/app/javascript/mastodon/features/hashtag_timeline/containers/column_settings_container.js
@@ -0,0 +1,31 @@
+import { connect } from 'react-redux';
+import ColumnSettings from '../components/column_settings';
+import { changeColumnParams } from '../../../actions/columns';
+import api from '../../../api';
+
+const mapStateToProps = (state, { columnId }) => {
+  const columns = state.getIn(['settings', 'columns']);
+  const index   = columns.findIndex(c => c.get('uuid') === columnId);
+
+  if (!(columnId && index >= 0)) {
+    return {};
+  }
+
+  return { settings: columns.get(index).get('params') };
+};
+
+const mapDispatchToProps = (dispatch, { columnId }) => ({
+  onChange (key, value) {
+    dispatch(changeColumnParams(columnId, key, value));
+  },
+
+  onLoad (value) {
+    return api().get('/api/v2/search', { params: { q: value } }).then(response => {
+      return (response.data.hashtags || []).map((tag) => {
+        return { value: tag.name, label: `#${tag.name}` };
+      });
+    });
+  },
+});
+
+export default connect(mapStateToProps, mapDispatchToProps)(ColumnSettings);
diff --git a/app/javascript/mastodon/features/hashtag_timeline/index.js b/app/javascript/mastodon/features/hashtag_timeline/index.js
index 63efdf1bd..86658cb66 100644
--- a/app/javascript/mastodon/features/hashtag_timeline/index.js
+++ b/app/javascript/mastodon/features/hashtag_timeline/index.js
@@ -4,7 +4,8 @@ import PropTypes from 'prop-types';
 import StatusListContainer from '../ui/containers/status_list_container';
 import Column from '../../components/column';
 import ColumnHeader from '../../components/column_header';
-import { expandHashtagTimeline } from '../../actions/timelines';
+import ColumnSettingsContainer from './containers/column_settings_container';
+import { expandHashtagTimeline, clearTimeline } from '../../actions/timelines';
 import { addColumn, removeColumn, moveColumn } from '../../actions/columns';
 import { FormattedMessage } from 'react-intl';
 import { connectHashtagStream } from '../../actions/streaming';
@@ -16,6 +17,8 @@ const mapStateToProps = (state, props) => ({
 export default @connect(mapStateToProps)
 class HashtagTimeline extends React.PureComponent {
 
+  disconnects = [];
+
   static propTypes = {
     params: PropTypes.object.isRequired,
     columnId: PropTypes.string,
@@ -35,6 +38,30 @@ class HashtagTimeline extends React.PureComponent {
     }
   }
 
+  title = () => {
+    let title = [this.props.params.id];
+    if (this.additionalFor('any')) {
+      title.push(<FormattedMessage id='hashtag.column_header.tag_mode.any'  values={{ additional: this.additionalFor('any') }} defaultMessage=' or {additional}' />);
+    }
+    if (this.additionalFor('all')) {
+      title.push(<FormattedMessage id='hashtag.column_header.tag_mode.all'  values={{ additional: this.additionalFor('all') }} defaultMessage=' and {additional}' />);
+    }
+    if (this.additionalFor('none')) {
+      title.push(<FormattedMessage 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));
@@ -44,30 +71,40 @@ class HashtagTimeline extends React.PureComponent {
     this.column.scrollTop();
   }
 
-  _subscribe (dispatch, id) {
-    this.disconnect = dispatch(connectHashtagStream(id));
+  _subscribe (dispatch, id, tags = {}) {
+    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, (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 () {
-    if (this.disconnect) {
-      this.disconnect();
-      this.disconnect = null;
-    }
+    this.disconnects.map(disconnect => disconnect());
+    this.disconnects = [];
   }
 
   componentDidMount () {
     const { dispatch } = this.props;
-    const { id } = this.props.params;
+    const { id, tags } = this.props.params;
 
-    dispatch(expandHashtagTimeline(id));
-    this._subscribe(dispatch, id);
+    dispatch(expandHashtagTimeline(id, { tags }));
   }
 
   componentWillReceiveProps (nextProps) {
-    if (nextProps.params.id !== this.props.params.id) {
-      this.props.dispatch(expandHashtagTimeline(nextProps.params.id));
+    const { dispatch, params } = this.props;
+    const { id, tags } = nextProps.params;
+    if (id !== params.id || tags !== params.tags) {
       this._unsubscribe();
-      this._subscribe(this.props.dispatch, nextProps.params.id);
+      this._subscribe(dispatch, id, tags);
+      this.props.dispatch(clearTimeline(`hashtag:${id}`));
+      this.props.dispatch(expandHashtagTimeline(id, { tags }));
     }
   }
 
@@ -80,7 +117,8 @@ class HashtagTimeline extends React.PureComponent {
   }
 
   handleLoadMore = maxId => {
-    this.props.dispatch(expandHashtagTimeline(this.props.params.id, { maxId }));
+    const { id, tags } = this.props.params;
+    this.props.dispatch(expandHashtagTimeline(id, { maxId, tags }));
   }
 
   render () {
@@ -93,14 +131,16 @@ class HashtagTimeline extends React.PureComponent {
         <ColumnHeader
           icon='hashtag'
           active={hasUnread}
-          title={id}
+          title={this.title()}
           onPin={this.handlePin}
           onMove={this.handleMove}
           onClick={this.handleHeaderClick}
           pinned={pinned}
           multiColumn={multiColumn}
           showBackButton
-        />
+        >
+          {columnId && <ColumnSettingsContainer columnId={columnId} />}
+        </ColumnHeader>
 
         <StatusListContainer
           trackScroll={!pinned}