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/*
* Javascript functions for the status update box.
* This file needs 'ajax.js' to be included on the pages.
*/
var vst_reload = true;
var vst_timer;
var vst_boxId = null;
var vst_url = null;
function LiveStatusRequest(url, containerid)
{
if (vst_url == null)
{
vst_url = url;
}
if (vst_boxId == null)
vst_boxId = containerid;
var status = new LiveAjaxCall("xml", url);
status.oncomplete = function()
{
try {
LiveStatusShowInfo(this.xml.responseXML, containerid);
}
catch (e) {
LiveStatusReportError(e.message, containerid);
}
if (vst_reload)
vst_timer = window.setTimeout("LiveStatusRequest('" + url + "', '" + containerid + "')", 1000);
}
status.onerror = function(message)
{
LiveStatusToggleUpdate();
LiveStatusReportError(message, containerid);
}
status.request("update", vst_reload ? "1" : "0");
}
function LiveStatusShowInfo(xmldoc, containerId)
{
var infoType = xmldoc.getElementsByTagName('type').item(0);
var channel = document.getElementById(containerId + '_channel_buttons');
var playback = document.getElementById(containerId + '_recording_buttons');
if (infoType.firstChild.nodeValue != "channel") {
channel.style.display = 'none';
playback.style.display = 'block';
LiveStatusSetTextContent(containerId, 'pause', infoType.firstChild.nodeValue);
LiveStatusSetTextContent(containerId, 'play', infoType.firstChild.nodeValue);
LiveStatusSetTextContent(containerId, 'rwd', infoType.firstChild.nodeValue);
LiveStatusSetTextContent(containerId, 'ffw', infoType.firstChild.nodeValue);
LiveStatusSetTextContent(containerId, 'stop', infoType.firstChild.nodeValue);
}
else {
playback.style.display = 'none';
channel.style.display = 'block';
}
var epgInfo = xmldoc.getElementsByTagName('epginfo').item(0);
for (var i = 0; i < epgInfo.childNodes.length; i++) {
var node = epgInfo.childNodes.item(i);
if (node.nodeType == 1) {
var textContent = "";
if (node.firstChild != null)
textContent = node.firstChild.nodeValue;
LiveStatusSetTextContent(containerId, node.nodeName, textContent);
}
}
}
function LiveStatusReportError(message, containerId)
{
LiveStatusSetTextContent(containerId, 'caption', 'ERROR');
LiveStatusSetTextContent(containerId, 'name', message);
}
function LiveStatusSetTextContent(containerId, nodeName, textContent)
{
var docNode = document.getElementById(containerId + '_' + nodeName);
if (docNode != null) {
switch (nodeName) {
case "caption":
case "timenow":
case "name":
case "duration":
{
if (docNode.innerHTML != textContent)
docNode.innerHTML = textContent;
break;
}
case "elapsed":
{
var width = textContent + "px";
if (docNode.style.width != width)
docNode.style.width = width;
break;
}
case "nextchan":
case "prevchan":
{
if (textContent != "") {
docNode.href = "javascript:LiveSimpleAjaxRequest('switch_channel.xml', 'param', '" + textContent + "');";
docNode.style.visibility = "visible";
}
else {
docNode.style.visibility = "hidden";
}
break;
}
case "pause":
case "play":
case "rwd":
case "ffw":
case "stop":
{
if (textContent != "") {
docNode.href = "javascript:LiveSimpleAjaxRequest('" + nodeName + "_recording.xml', 'param', '" + textContent + "');";
docNode.style.visibility = "visible";
}
else {
docNode.style.visibility = "hidden";
}
break;
}
default:
break;
}
}
}
function LiveStatusToggleUpdate()
{
if (vst_reload) {
vst_reload = false;
if (vst_timer != null)
window.clearTimeout(vst_timer);
}
else {
vst_reload = true;
LiveStatusRequest(vst_url, vst_boxId);
}
var img = document.getElementById('statusReloadBtn');
if (img != null) {
// change image according to state.
img.src = vst_reload ? 'stop_update.png' : 'reload.png';
}
}
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