53 lines
1.5 KiB
JavaScript
53 lines
1.5 KiB
JavaScript
'use strict';
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/**
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* @param {String} artistTrack - Artist of the track
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* @param {String} titleTrack - Name of the track
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* @description Updates the data on the page. Displays a pop-up window if the
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* data has changed.
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*/
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function updateData(artistTrack, titleTrack) {
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/* Gets items on the page */
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var displayElement = document.getElementById('display');
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var artistElement = document.getElementById('artist');
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var titleElement = document.getElementById('title');
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if (artistElement.innerHTML !== artistTrack || titleElement.innerHTML !== titleTrack) {
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/* Updates text */
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artistElement.innerHTML = artistTrack;
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titleElement.innerHTML = titleTrack;
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/* Displays a pop-up window */
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displayElement.style['animation-name'] = 'fadeIn';
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setTimeout(function () {
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/* Removes a pop-up window */
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displayElement.style['animation-name'] = 'fadeOut';
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}, 3000);
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}
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}
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var client = new XMLHttpRequest();
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var url = 'https://somafm.com/songs/defcon.xml';
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/* Processes response */
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client.onload = function () {
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if (client.readyState === client.DONE) {
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if (this.status === 200 && this.responseXML !== null) {
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/* Gets current track */
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var current = this.responseXML.getElementsByTagName('song')[0];
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var artist = current.getElementsByTagName('artist')[0].textContent;
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var title = current.getElementsByTagName('title')[0].textContent;
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/* Updates data */
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updateData(artist, title);
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}
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}
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};
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/* Update cycle */
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setInterval(function () {
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client.open('GET', url);
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client.send();
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}, 5000);
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