132 lines
3.3 KiB
JavaScript
132 lines
3.3 KiB
JavaScript
/* @flow */
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import React, { Component } from 'react';
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import { translate } from '../../base/i18n';
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/**
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* The type of the React {@code Component} props of {@link TimeElapsed}.
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*/
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type Props = {
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/**
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* The function to translate human-readable text.
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*/
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t: Function,
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/**
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* The milliseconds to be converted into a human-readable format.
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*/
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time: number
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};
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/**
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* React component for displaying total time elapsed. Converts a total count of
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* milliseconds into a more humanized form: "# hours, # minutes, # seconds".
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* With a time of 0, "0s" will be displayed.
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*
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* @extends Component
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*/
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class TimeElapsed extends Component<Props> {
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/**
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* Implements React's {@link Component#render()}.
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*
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* @inheritdoc
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* @returns {ReactElement}
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*/
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render() {
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const { time } = this.props;
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const hours = _getHoursCount(time);
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const minutes = _getMinutesCount(time);
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const seconds = _getSecondsCount(time);
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const timeElapsed = [];
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if (hours) {
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const hourPassed
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= this._createTimeDisplay(hours, 'speakerStats.hours', 'hours');
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timeElapsed.push(hourPassed);
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}
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if (hours || minutes) {
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const minutesPassed
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= this._createTimeDisplay(
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minutes,
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'speakerStats.minutes',
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'minutes');
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timeElapsed.push(minutesPassed);
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}
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const secondsPassed
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= this._createTimeDisplay(
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seconds,
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'speakerStats.seconds',
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'seconds');
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timeElapsed.push(secondsPassed);
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return (
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<div>
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{ timeElapsed }
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</div>
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);
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}
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/**
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* Returns a ReactElement to display the passed in count and a count noun.
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*
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* @private
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* @param {number} count - The number used for display and to check for
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* count noun plurality.
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* @param {string} countNounKey - Translation key for the time's count noun.
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* @param {string} countType - What is being counted. Used as the element's
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* key for react to iterate upon.
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* @returns {ReactElement}
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*/
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_createTimeDisplay(count, countNounKey, countType) {
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const { t } = this.props;
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return (
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<span key = { countType } >
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{ t(countNounKey, { count }) }
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</span>
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);
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}
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}
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export default translate(TimeElapsed);
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/**
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* Counts how many whole hours are included in the given time total.
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*
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* @param {number} milliseconds - The millisecond total to get hours from.
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* @private
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* @returns {number}
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*/
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function _getHoursCount(milliseconds) {
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return Math.floor(milliseconds / (60 * 60 * 1000));
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}
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/**
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* Counts how many whole minutes are included in the given time total.
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*
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* @param {number} milliseconds - The millisecond total to get minutes from.
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* @private
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* @returns {number}
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*/
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function _getMinutesCount(milliseconds) {
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return Math.floor(milliseconds / (60 * 1000) % 60);
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}
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/**
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* Counts how many whole seconds are included in the given time total.
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*
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* @param {number} milliseconds - The millisecond total to get seconds from.
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* @private
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* @returns {number}
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*/
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function _getSecondsCount(milliseconds) {
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return Math.floor(milliseconds / 1000 % 60);
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}
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