1 files changed, 76 insertions, 1 deletions
diff --git a/_includes/javascript.html b/_includes/javascript.html
index 6a5316f..7b9e861 100644
--- a/_includes/javascript.html
+++ b/_includes/javascript.html
@@ -1,2 +1,77 @@
 <!-- Updates track names -->
-<script type="text/javascript" src="assets/javascript/script.js"></script>
+<script type="text/javascript">
+ 'use strict';
+
+ /**
+ * @param {String} parameterName - Variable name
+ * @returns {String} Value of variable
+ * @description Searches for the value of the GET variable on the page.
+ */
+ function findGetParameter(parameterName) {
+ var result = null;
+ var tmp = [];
+
+ var items = window.location.search.substr(1).split('&');
+ for (var index = 0; index < items.length; index++) {
+ tmp = items[index].split('=');
+ if (tmp[0] === parameterName) {
+ result = decodeURIComponent(tmp[1]);
+ }
+ }
+
+ return result;
+ }
+
+ /**
+ * @param {String} artistTrack - Artist of the track
+ * @param {String} titleTrack - Name of the track
+ * @description Updates the data on the page. Displays a pop-up window if the
+ * data has changed.
+ */
+ function updateData(artistTrack, titleTrack) {
+ /* Gets items on the page */
+ var displayElement = document.getElementById('display');
+ var artistElement = document.getElementById('artist');
+ var titleElement = document.getElementById('title');
+
+ if (artistElement.textContent !== artistTrack || titleElement.textContent !== titleTrack) {
+ /* Updates text */
+ document.title = artistTrack + ' - ' + titleTrack;
+ artistElement.textContent = artistTrack;
+ titleElement.textContent = titleTrack;
+
+ /* Displays a pop-up window */
+ displayElement.style['animation-name'] = 'fadeIn';
+
+ setTimeout(function () {
+ /* Removes a pop-up window */
+ displayElement.style['animation-name'] = 'fadeOut';
+ }, 5000);
+ }
+ }
+
+ var client = new XMLHttpRequest();
+ var radio = findGetParameter('radio');
+ var url = '//somafm.com/songs/' + radio + '.xml';
+
+ /* Processes response */
+ client.onload = function () {
+ if (client.readyState === client.DONE) {
+ if (this.status === 200 && this.responseXML !== null) {
+ /* Gets current track */
+ var current = this.responseXML.getElementsByTagName('song')[0];
+ var artist = current.getElementsByTagName('artist')[0].textContent;
+ var title = current.getElementsByTagName('title')[0].textContent;
+
+ /* Updates data */
+ updateData(artist, title);
+ }
+ }
+ };
+
+ /* Update cycle */
+ setInterval(function () {
+ client.open('GET', url);
+ client.send();
+ }, 10000);
+</script>