import React from 'react'; import { connect } from 'react-redux'; import PropTypes from 'prop-types'; import ImmutablePropTypes from 'react-immutable-proptypes'; import Column from '../../components/column'; import ColumnHeader from '../../components/column_header'; import { expandNotifications, scrollTopNotifications } from '../../actions/notifications'; import NotificationContainer from './containers/notification_container'; import { defineMessages, injectIntl, FormattedMessage } from 'react-intl'; import ColumnSettingsContainer from './containers/column_settings_container'; import FilterBarContainer from './containers/filter_bar_container'; import { createSelector } from 'reselect'; import { List as ImmutableList } from 'immutable'; import { debounce } from 'lodash'; import ScrollableList from '../../components/scrollable_list'; import LoadGap from '../../components/load_gap'; const messages = defineMessages({ title: { id: 'column.notifications', defaultMessage: 'Notifications' }, }); const getNotifications = createSelector([ state => state.getIn(['settings', 'notifications', 'quickFilter', 'show']), state => state.getIn(['settings', 'notifications', 'quickFilter', 'active']), state => ImmutableList(state.getIn(['settings', 'notifications', 'shows']).filter(item => !item).keys()), state => state.getIn(['notifications', 'items']), ], (showFilterBar, allowedType, excludedTypes, notifications) => { if (!showFilterBar || allowedType === 'all') { // used if user changed the notification settings after loading the notifications from the server // otherwise a list of notifications will come pre-filtered from the backend // we need to turn it off for FilterBar in order not to block ourselves from seeing a specific category return notifications.filterNot(item => item !== null && excludedTypes.includes(item.get('type'))); } return notifications.filter(item => item !== null && allowedType === item.get('type')); }); const mapStateToProps = state => ({ showFilterBar: state.getIn(['settings', 'notifications', 'quickFilter', 'show']), notifications: getNotifications(state), isLoading: state.getIn(['notifications', 'isLoading'], true), isUnread: state.getIn(['notifications', 'unread']) > 0, hasMore: state.getIn(['notifications', 'hasMore']), }); export default @connect(mapStateToProps) @injectIntl class Notifications extends React.PureComponent { static propTypes = { columnId: PropTypes.string, notifications: ImmutablePropTypes.list.isRequired, showFilterBar: PropTypes.bool.isRequired, dispatch: PropTypes.func.isRequired, intl: PropTypes.object.isRequired, isLoading: PropTypes.bool, isUnread: PropTypes.bool, hasMore: PropTypes.bool, }; componentWillUnmount () { this.handleLoadOlder.cancel(); this.handleScrollToTop.cancel(); this.handleScroll.cancel(); this.props.dispatch(scrollTopNotifications(false)); } handleLoadGap = (maxId) => { this.props.dispatch(expandNotifications({ maxId })); }; handleLoadOlder = debounce(() => { const last = this.props.notifications.last(); this.props.dispatch(expandNotifications({ maxId: last && last.get('id') })); }, 300, { leading: true }); handleScrollToTop = debounce(() => { this.props.dispatch(scrollTopNotifications(true)); }, 100); handleScroll = debounce(() => { this.props.dispatch(scrollTopNotifications(false)); }, 100); setColumnRef = c => { this.column = c; } handleMoveUp = id => { const elementIndex = this.props.notifications.findIndex(item => item !== null && item.get('id') === id) - 1; this._selectChild(elementIndex, true); } handleMoveDown = id => { const elementIndex = this.props.notifications.findIndex(item => item !== null && item.get('id') === id) + 1; this._selectChild(elementIndex, false); } _selectChild (index, align_top) { const container = this.column.node; const element = container.querySelector(`article:nth-of-type(${index + 1}) .focusable`); if (element) { if (align_top && container.scrollTop > element.offsetTop) { element.scrollIntoView(true); } else if (!align_top && container.scrollTop + container.clientHeight < element.offsetTop + element.offsetHeight) { element.scrollIntoView(false); } element.focus(); } } render () { const { intl, notifications, isLoading, isUnread, columnId, hasMore, showFilterBar } = this.props; const emptyMessage = ; let scrollableContent = null; const filterBarContainer = showFilterBar ? () : null; if (isLoading && this.scrollableContent) { scrollableContent = this.scrollableContent; } else if (notifications.size > 0 || hasMore) { scrollableContent = notifications.map((item, index) => item === null ? ( 0 ? notifications.getIn([index - 1, 'id']) : null} onClick={this.handleLoadGap} /> ) : ( )); } else { scrollableContent = null; } this.scrollableContent = scrollableContent; const scrollContainer = ( {scrollableContent} ); return ( {filterBarContainer} {scrollContainer} ); } }