143 lines
		
	
	
		
			4.8 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			143 lines
		
	
	
		
			4.8 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
import { connect } from 'react-redux';
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import PureRenderMixin from 'react-addons-pure-render-mixin';
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import ImmutablePropTypes from 'react-immutable-proptypes';
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import Column from '../ui/components/column';
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import { expandNotifications, clearNotifications, scrollTopNotifications } from '../../actions/notifications';
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import NotificationContainer from './containers/notification_container';
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import { ScrollContainer } from 'react-router-scroll';
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import { defineMessages, injectIntl, FormattedMessage } from 'react-intl';
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import ColumnSettingsContainer from './containers/column_settings_container';
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import { createSelector } from 'reselect';
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import Immutable from 'immutable';
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import LoadMore from '../../components/load_more';
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import ClearColumnButton from './components/clear_column_button';
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const messages = defineMessages({
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  title: { id: 'column.notifications', defaultMessage: 'Notifications' },
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  confirm: { id: 'notifications.clear_confirmation', defaultMessage: 'Are you sure you want to clear all your notifications?' }
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});
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const getNotifications = createSelector([
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  state => Immutable.List(state.getIn(['settings', 'notifications', 'shows']).filter(item => !item).keys()),
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  state => state.getIn(['notifications', 'items'])
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], (excludedTypes, notifications) => notifications.filterNot(item => excludedTypes.includes(item.get('type'))));
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const mapStateToProps = state => ({
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  notifications: getNotifications(state),
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  isLoading: state.getIn(['notifications', 'isLoading'], true),
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  isUnread: state.getIn(['notifications', 'unread']) > 0
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});
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const Notifications = React.createClass({
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  propTypes: {
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    notifications: ImmutablePropTypes.list.isRequired,
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    dispatch: React.PropTypes.func.isRequired,
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    trackScroll: React.PropTypes.bool,
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    intl: React.PropTypes.object.isRequired,
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    isLoading: React.PropTypes.bool,
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    isUnread: React.PropTypes.bool
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  },
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  getDefaultProps () {
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    return {
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      trackScroll: true
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    };
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  },
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  mixins: [PureRenderMixin],
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  handleScroll (e) {
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    const { scrollTop, scrollHeight, clientHeight } = e.target;
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    const offset = scrollHeight - scrollTop - clientHeight;
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    this._oldScrollPosition = scrollHeight - scrollTop;
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    if (250 > offset && !this.props.isLoading) {
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      this.props.dispatch(expandNotifications());
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    } else if (scrollTop < 100) {
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      this.props.dispatch(scrollTopNotifications(true));
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    } else {
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      this.props.dispatch(scrollTopNotifications(false));
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    }
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  },
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  componentDidUpdate (prevProps) {
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    if (this.node.scrollTop > 0 && (prevProps.notifications.size < this.props.notifications.size && prevProps.notifications.first() !== this.props.notifications.first() && !!this._oldScrollPosition)) {
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      this.node.scrollTop = this.node.scrollHeight - this._oldScrollPosition;
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    }
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  },
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  handleLoadMore (e) {
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    e.preventDefault();
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    this.props.dispatch(expandNotifications());
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  },
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  handleClear () {
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    if (window.confirm(this.props.intl.formatMessage(messages.confirm))) {
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      this.props.dispatch(clearNotifications());
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    }
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  },
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  setRef (c) {
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    this.node = c;
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  },
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  render () {
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    const { intl, notifications, trackScroll, isLoading, isUnread } = this.props;
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    let loadMore       = '';
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    let scrollableArea = '';
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    let unread         = '';
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    if (!isLoading && notifications.size > 0) {
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      loadMore = <LoadMore onClick={this.handleLoadMore} />;
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    }
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    if (isUnread) {
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      unread = <div className='notifications__unread-indicator' />;
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    }
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    if (isLoading || notifications.size > 0) {
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      scrollableArea = (
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        <div className='scrollable' onScroll={this.handleScroll} ref={this.setRef}>
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          {unread}
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          <div>
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            {notifications.map(item => <NotificationContainer key={item.get('id')} notification={item} accountId={item.get('account')} />)}
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            {loadMore}
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          </div>
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        </div>
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      );
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    } else {
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      scrollableArea = (
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        <div className='empty-column-indicator' ref={this.setRef}>
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          <FormattedMessage id='empty_column.notifications' defaultMessage="You don't have any notifications yet. Interact with others to start the conversation." />
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        </div>
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      );
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    }
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    if (trackScroll) {
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      return (
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        <Column icon='bell' active={isUnread} heading={intl.formatMessage(messages.title)}>
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          <ColumnSettingsContainer />
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          <ClearColumnButton onClick={this.handleClear} />
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          <ScrollContainer scrollKey='notifications'>
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            {scrollableArea}
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          </ScrollContainer>
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        </Column>
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      );
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    } else {
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      return (
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        <Column icon='bell' active={isUnread} heading={intl.formatMessage(messages.title)}>
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          <ColumnSettingsContainer />
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          <ClearColumnButton onClick={this.handleClear} />
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          {scrollableArea}
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        </Column>
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      );
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    }
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  }
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});
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export default connect(mapStateToProps)(injectIntl(Notifications));
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