ld-videojs-record/src/js/utils/format-time.js

A video.js plugin for recording audio/video/image files.

/**
 * @file format-time.js
 * @since 2.0.0
 */

/**
 * Format seconds as a time string, H:MM:SS, M:SS or M:SS:MMM.
 *
 * Supplying a guide (in seconds) will force a number of leading zeros
 * to cover the length of the guide.
 *
 * @param {number} seconds - Number of seconds to be turned into a
 *     string.
 * @param {number} guide - Number (in seconds) to model the string
 *     after.
 * @param {number} msDisplayMax - Number (in milliseconds) to model the string
 *     after.
 * @return {string} Time formatted as H:MM:SS, M:SS or M:SS:MMM, e.g.
 *     0:00:12.
 * @private
 */
const formatTime = function(seconds, guide, msDisplayMax) {
    // buddy ignore:start
    // Default to using seconds as guide
    seconds = seconds < 0 ? 0 : seconds;
    guide = guide || seconds;
    let s = Math.floor(seconds % 60),
        m = Math.floor(seconds / 60 % 60),
        h = Math.floor(seconds / 3600),
        gm = Math.floor(guide / 60 % 60),
        gh = Math.floor(guide / 3600),
        ms = Math.floor((seconds - s) * 1000);

    // handle invalid times
    if (isNaN(seconds) || seconds === Infinity) {
        // '-' is false for all relational operators (e.g. <, >=) so this
        // setting will add the minimum number of fields specified by the
        // guide
        h = m = s = ms = '-';
    }

    // Check if we need to show milliseconds
    if (guide > 0 && guide < msDisplayMax) {
        if (ms < 100) {
            if (ms < 10) {
                ms = '00' + ms;
            } else {
                ms = '0' + ms;
            }
        }
        ms = ':' + ms;
    } else {
        ms = '';
    }

    // Check if we need to show hours
    h = (h > 0 || gh > 0) ? h + ':' : '';

    // If hours are showing, we may need to add a leading zero.
    // Always show at least one digit of minutes.
    m = (((h || gm >= 10) && m < 10) ? '0' + m : m) + ':';

    // Check if leading zero is need for seconds
    s = ((s < 10) ? '0' + s : s);
    // buddy ignore:end
    return h + m + s + ms;
};

export default formatTime;