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229 lines
7.3 KiB
229 lines
7.3 KiB
import React from 'react';
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import PropTypes from 'prop-types';
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import ImmutablePropTypes from 'react-immutable-proptypes';
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import ImmutablePureComponent from 'react-immutable-pure-component';
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import { defineMessages, injectIntl, FormattedMessage } from 'react-intl';
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import classNames from 'classnames';
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import Motion from 'flavours/glitch/util/optional_motion';
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import spring from 'react-motion/lib/spring';
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import escapeTextContentForBrowser from 'escape-html';
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import emojify from 'flavours/glitch/util/emoji';
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import RelativeTimestamp from './relative_timestamp';
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import Icon from 'flavours/glitch/components/icon';
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const messages = defineMessages({
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closed: {
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id: 'poll.closed',
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defaultMessage: 'Closed',
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},
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voted: {
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id: 'poll.voted',
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defaultMessage: 'You voted for this answer',
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},
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votes: {
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id: 'poll.votes',
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defaultMessage: '{votes, plural, one {# vote} other {# votes}}',
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},
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});
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const makeEmojiMap = record => record.get('emojis').reduce((obj, emoji) => {
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obj[`:${emoji.get('shortcode')}:`] = emoji.toJS();
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return obj;
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}, {});
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export default @injectIntl
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class Poll extends ImmutablePureComponent {
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static propTypes = {
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poll: ImmutablePropTypes.map,
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intl: PropTypes.object.isRequired,
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disabled: PropTypes.bool,
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refresh: PropTypes.func,
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onVote: PropTypes.func,
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};
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state = {
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selected: {},
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expired: null,
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};
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static getDerivedStateFromProps (props, state) {
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const { poll, intl } = props;
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const expires_at = poll.get('expires_at');
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const expired = poll.get('expired') || expires_at !== null && (new Date(expires_at)).getTime() < intl.now();
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return (expired === state.expired) ? null : { expired };
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}
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componentDidMount () {
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this._setupTimer();
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}
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componentDidUpdate () {
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this._setupTimer();
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}
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componentWillUnmount () {
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clearTimeout(this._timer);
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}
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_setupTimer () {
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const { poll, intl } = this.props;
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clearTimeout(this._timer);
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if (!this.state.expired) {
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const delay = (new Date(poll.get('expires_at'))).getTime() - intl.now();
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this._timer = setTimeout(() => {
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this.setState({ expired: true });
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}, delay);
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}
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}
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_toggleOption = value => {
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if (this.props.poll.get('multiple')) {
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const tmp = { ...this.state.selected };
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if (tmp[value]) {
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delete tmp[value];
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} else {
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tmp[value] = true;
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}
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this.setState({ selected: tmp });
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} else {
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const tmp = {};
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tmp[value] = true;
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this.setState({ selected: tmp });
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}
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}
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handleOptionChange = ({ target: { value } }) => {
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this._toggleOption(value);
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};
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handleOptionKeyPress = (e) => {
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if (e.key === 'Enter' || e.key === ' ') {
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this._toggleOption(e.target.getAttribute('data-index'));
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e.stopPropagation();
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e.preventDefault();
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}
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}
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handleVote = () => {
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if (this.props.disabled) {
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return;
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}
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this.props.onVote(Object.keys(this.state.selected));
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};
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handleRefresh = () => {
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if (this.props.disabled) {
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return;
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}
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this.props.refresh();
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};
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renderOption (option, optionIndex, showResults) {
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const { poll, disabled, intl } = this.props;
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const pollVotesCount = poll.get('voters_count') || poll.get('votes_count');
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const percent = pollVotesCount === 0 ? 0 : (option.get('votes_count') / pollVotesCount) * 100;
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const leading = poll.get('options').filterNot(other => other.get('title') === option.get('title')).every(other => option.get('votes_count') >= other.get('votes_count'));
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const active = !!this.state.selected[`${optionIndex}`];
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const voted = option.get('voted') || (poll.get('own_votes') && poll.get('own_votes').includes(optionIndex));
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let titleEmojified = option.get('title_emojified');
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if (!titleEmojified) {
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const emojiMap = makeEmojiMap(poll);
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titleEmojified = emojify(escapeTextContentForBrowser(option.get('title')), emojiMap);
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}
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return (
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<li key={option.get('title')}>
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<label className={classNames('poll__option', { selectable: !showResults })}>
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<input
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name='vote-options'
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type={poll.get('multiple') ? 'checkbox' : 'radio'}
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value={optionIndex}
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checked={active}
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onChange={this.handleOptionChange}
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disabled={disabled}
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/>
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{!showResults && (
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<span
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className={classNames('poll__input', { checkbox: poll.get('multiple'), active })}
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tabIndex='0'
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role={poll.get('multiple') ? 'checkbox' : 'radio'}
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onKeyPress={this.handleOptionKeyPress}
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aria-checked={active}
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aria-label={option.get('title')}
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data-index={optionIndex}
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/>
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)}
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{showResults && (
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<span
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className='poll__number'
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title={intl.formatMessage(messages.votes, {
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votes: option.get('votes_count'),
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})}
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>
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{Math.round(percent)}%
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</span>
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)}
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<span
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className='poll__option__text translate'
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dangerouslySetInnerHTML={{ __html: titleEmojified }}
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/>
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{!!voted && <span className='poll__voted'>
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<Icon id='check' className='poll__voted__mark' title={intl.formatMessage(messages.voted)} />
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</span>}
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</label>
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{showResults && (
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<Motion defaultStyle={{ width: 0 }} style={{ width: spring(percent, { stiffness: 180, damping: 12 }) }}>
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{({ width }) =>
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<span className={classNames('poll__chart', { leading })} style={{ width: `${width}%` }} />
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}
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</Motion>
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)}
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</li>
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);
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}
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render () {
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const { poll, intl } = this.props;
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const { expired } = this.state;
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if (!poll) {
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return null;
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}
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const timeRemaining = expired ? intl.formatMessage(messages.closed) : <RelativeTimestamp timestamp={poll.get('expires_at')} futureDate />;
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const showResults = poll.get('voted') || expired;
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const disabled = this.props.disabled || Object.entries(this.state.selected).every(item => !item);
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let votesCount = null;
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if (poll.get('voters_count') !== null && poll.get('voters_count') !== undefined) {
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votesCount = <FormattedMessage id='poll.total_people' defaultMessage='{count, plural, one {# person} other {# people}}' values={{ count: poll.get('voters_count') }} />;
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} else {
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votesCount = <FormattedMessage id='poll.total_votes' defaultMessage='{count, plural, one {# vote} other {# votes}}' values={{ count: poll.get('votes_count') }} />;
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}
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return (
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<div className='poll'>
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<ul>
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{poll.get('options').map((option, i) => this.renderOption(option, i, showResults))}
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</ul>
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<div className='poll__footer'>
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{!showResults && <button className='button button-secondary' disabled={disabled} onClick={this.handleVote}><FormattedMessage id='poll.vote' defaultMessage='Vote' /></button>}
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{showResults && !this.props.disabled && <span><button className='poll__link' onClick={this.handleRefresh}><FormattedMessage id='poll.refresh' defaultMessage='Refresh' /></button> · </span>}
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{votesCount}
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{poll.get('expires_at') && <span> · {timeRemaining}</span>}
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</div>
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</div>
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);
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}
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}
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