Gab Social. All are welcome.

app/javascript/gabsocial/components/poll.js

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+import React from 'react';
+import PropTypes from 'prop-types';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import ImmutablePureComponent from 'react-immutable-pure-component';
+import { defineMessages, injectIntl, FormattedMessage } from 'react-intl';
+import classNames from 'classnames';
+import { vote, fetchPoll } from 'gabsocial/actions/polls';
+import Motion from 'gabsocial/features/ui/util/optional_motion';
+import spring from 'react-motion/lib/spring';
+import escapeTextContentForBrowser from 'escape-html';
+import emojify from 'gabsocial/features/emoji/emoji';
+import RelativeTimestamp from './relative_timestamp';
+
+const messages = defineMessages({
+  closed: { id: 'poll.closed', defaultMessage: 'Closed' },
+});
+
+const makeEmojiMap = record => record.get('emojis').reduce((obj, emoji) => {
+  obj[`:${emoji.get('shortcode')}:`] = emoji.toJS();
+  return obj;
+}, {});
+
+export default @injectIntl
+class Poll extends ImmutablePureComponent {
+
+  static propTypes = {
+    poll: ImmutablePropTypes.map,
+    intl: PropTypes.object.isRequired,
+    dispatch: PropTypes.func,
+    disabled: PropTypes.bool,
+  };
+
+  state = {
+    selected: {},
+  };
+
+  handleOptionChange = e => {
+    const { target: { value } } = e;
+
+    if (this.props.poll.get('multiple')) {
+      const tmp = { ...this.state.selected };
+      if (tmp[value]) {
+        delete tmp[value];
+      } else {
+        tmp[value] = true;
+      }
+      this.setState({ selected: tmp });
+    } else {
+      const tmp = {};
+      tmp[value] = true;
+      this.setState({ selected: tmp });
+    }
+  };
+
+  handleVote = () => {
+    if (this.props.disabled) {
+      return;
+    }
+
+    this.props.dispatch(vote(this.props.poll.get('id'), Object.keys(this.state.selected)));
+  };
+
+  handleRefresh = () => {
+    if (this.props.disabled) {
+      return;
+    }
+
+    this.props.dispatch(fetchPoll(this.props.poll.get('id')));
+  };
+
+  renderOption (option, optionIndex) {
+    const { poll, disabled } = this.props;
+    const percent            = poll.get('votes_count') === 0 ? 0 : (option.get('votes_count') / poll.get('votes_count')) * 100;
+    const leading            = poll.get('options').filterNot(other => other.get('title') === option.get('title')).every(other => option.get('votes_count') > other.get('votes_count'));
+    const active             = !!this.state.selected[`${optionIndex}`];
+    const showResults        = poll.get('voted') || poll.get('expired');
+
+    let titleEmojified = option.get('title_emojified');
+    if (!titleEmojified) {
+      const emojiMap = makeEmojiMap(poll);
+      titleEmojified = emojify(escapeTextContentForBrowser(option.get('title')), emojiMap);
+    }
+
+    return (
+      <li key={option.get('title')}>
+        {showResults && (
+          <Motion defaultStyle={{ width: 0 }} style={{ width: spring(percent, { stiffness: 180, damping: 12 }) }}>
+            {({ width }) =>
+              <span className={classNames('poll__chart', { leading })} style={{ width: `${width}%` }} />
+            }
+          </Motion>
+        )}
+
+        <label className={classNames('poll__text', { selectable: !showResults })}>
+          <input
+            name='vote-options'
+            type={poll.get('multiple') ? 'checkbox' : 'radio'}
+            value={optionIndex}
+            checked={active}
+            onChange={this.handleOptionChange}
+            disabled={disabled}
+          />
+
+          {!showResults && <span className={classNames('poll__input', { checkbox: poll.get('multiple'), active })} />}
+          {showResults && <span className='poll__number'>{Math.round(percent)}%</span>}
+
+          <span dangerouslySetInnerHTML={{ __html: titleEmojified }} />
+        </label>
+      </li>
+    );
+  }
+
+  render () {
+    const { poll, intl } = this.props;
+
+    if (!poll) {
+      return null;
+    }
+
+    const timeRemaining = poll.get('expired') ? intl.formatMessage(messages.closed) : <RelativeTimestamp timestamp={poll.get('expires_at')} futureDate />;
+    const showResults   = poll.get('voted') || poll.get('expired');
+    const disabled      = this.props.disabled || Object.entries(this.state.selected).every(item => !item);
+
+    return (
+      <div className='poll'>
+        <ul>
+          {poll.get('options').map((option, i) => this.renderOption(option, i))}
+        </ul>
+
+        <div className='poll__footer'>
+          {!showResults && <button className='button button-secondary' disabled={disabled} onClick={this.handleVote}><FormattedMessage id='poll.vote' defaultMessage='Vote' /></button>}
+          {showResults && !this.props.disabled && <span><button className='poll__link' onClick={this.handleRefresh}><FormattedMessage id='poll.refresh' defaultMessage='Refresh' /></button> · </span>}
+          <FormattedMessage id='poll.total_votes' defaultMessage='{count, plural, one {# vote} other {# votes}}' values={{ count: poll.get('votes_count') }} />
+          {poll.get('expires_at') && <span> · {timeRemaining}</span>}
+        </div>
+      </div>
+    );
+  }
+
+}