Add edit history to web UI (#17390)

* Add edit history to web UI

* Change history reducer to store items per status

* Fix missing loading prop

app/javascript/mastodon/components/edited_timestamp/containers/dropdown_menu_container.js

@@ -0,0 +1,27 @@
+import { connect } from 'react-redux';
+import { openDropdownMenu, closeDropdownMenu } from 'mastodon/actions/dropdown_menu';
+import { fetchHistory } from 'mastodon/actions/history';
+import DropdownMenu from 'mastodon/components/dropdown_menu';
+
+const mapStateToProps = (state, { statusId }) => ({
+  dropdownPlacement: state.getIn(['dropdown_menu', 'placement']),
+  openDropdownId: state.getIn(['dropdown_menu', 'openId']),
+  openedViaKeyboard: state.getIn(['dropdown_menu', 'keyboard']),
+  items: state.getIn(['history', statusId, 'items']),
+  loading: state.getIn(['history', statusId, 'loading']),
+});
+
+const mapDispatchToProps = (dispatch, { statusId }) => ({
+
+  onOpen (id, onItemClick, dropdownPlacement, keyboard) {
+    dispatch(fetchHistory(statusId));
+    dispatch(openDropdownMenu(id, dropdownPlacement, keyboard));
+  },
+
+  onClose (id) {
+    dispatch(closeDropdownMenu(id));
+  },
+
+});
+
+export default connect(mapStateToProps, mapDispatchToProps)(DropdownMenu);

app/javascript/mastodon/components/edited_timestamp/index.js

@@ -0,0 +1,70 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import { FormattedMessage, injectIntl } from 'react-intl';
+import Icon from 'mastodon/components/icon';
+import DropdownMenu from './containers/dropdown_menu_container';
+import { connect } from 'react-redux';
+import { openModal } from 'mastodon/actions/modal';
+import RelativeTimestamp from 'mastodon/components/relative_timestamp';
+import InlineAccount from 'mastodon/components/inline_account';
+
+const mapDispatchToProps = (dispatch, { statusId }) => ({
+
+  onItemClick (index) {
+    dispatch(openModal('COMPARE_HISTORY', { index, statusId }));
+  },
+
+});
+
+export default @connect(null, mapDispatchToProps)
+@injectIntl
+class EditedTimestamp extends React.PureComponent {
+
+  static propTypes = {
+    statusId: PropTypes.string.isRequired,
+    timestamp: PropTypes.string.isRequired,
+    intl: PropTypes.object.isRequired,
+    onItemClick: PropTypes.func.isRequired,
+  };
+
+  handleItemClick = (item, i) => {
+    const { onItemClick } = this.props;
+    onItemClick(i);
+  };
+
+  renderHeader = items => {
+    return (
+      <FormattedMessage id='status.edited_x_times' defaultMessage='Edited {count, plural, one {{count} time} other {{count} times}}' values={{ count: items.size - 1 }} />
+    );
+  }
+
+  renderItem = (item, index, { onClick, onKeyPress }) => {
+    const formattedDate = <RelativeTimestamp timestamp={item.get('created_at')} short={false} />;
+    const formattedName = <InlineAccount accountId={item.get('account')} />;
+
+    const label = item.get('original') ? (
+      <FormattedMessage id='status.history.created' defaultMessage='{name} created {date}' values={{ name: formattedName, date: formattedDate }} />
+    ) : (
+      <FormattedMessage id='status.history.edited' defaultMessage='{name} edited {date}' values={{ name: formattedName, date: formattedDate }} />
+    );
+
+    return (
+      <li className='dropdown-menu__item edited-timestamp__history__item' key={item.get('created_at')}>
+        <button data-index={index} onClick={onClick} onKeyPress={onKeyPress}>{label}</button>
+      </li>
+    );
+  }
+
+  render () {
+    const { timestamp, intl, statusId } = this.props;
+
+    return (
+      <DropdownMenu statusId={statusId} renderItem={this.renderItem} scrollable renderHeader={this.renderHeader} onItemClick={this.handleItemClick}>
+        <button className='dropdown-menu__text-button'>
+          <FormattedMessage id='status.edited' defaultMessage='Edited {date}' values={{ date: intl.formatDate(timestamp, { hour12: false, month: 'short', day: '2-digit', hour: '2-digit', minute: '2-digit' }) }} /> <Icon id='caret-down' />
+        </button>
+      </DropdownMenu>
+    );
+  }
+
+}