org.kohsuke.ajaxterm.js Maven / Gradle / Ivy
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ajaxterm={};
ajaxterm.Terminal=function(id,options) {
// options
var width = options.width || 80; // dimension of the terminal
var height = options.height || 25;
var endpoint = options.endpoint; // URL of the server endpoint that delivers the request to Session.handleUpdate
var additionalQueryString = options.query; // additional parameters sent to the server
var ie=0;
if(window.ActiveXObject)
ie=1;
var sid=""+Math.round(Math.random()*1000000000);
var query0="s="+sid+"&w="+width+"&h="+height;
var query1=query0+"&c=1&k=";
var buf="";
var timeout;
var screenTimestamp = 0;
var error_timeout;
var keybuf=[];
var sending=0;
var rmax=1;
var div=(typeof(id)=="string" ? document.getElementById(id) : id);
var fitter=document.createElement('div'); // for shrinking the screen area to the right size
var dstat=document.createElement('pre');
var sled=document.createElement('span'); // status LED. indicate the communication with the server
var opt_get=document.createElement('a'); //
var opt_color=document.createElement('a');
var opt_paste=document.createElement('a');
var sdebug=document.createElement('span');
var spacer=document.createElement('div'); // creates border & padding around the main screen
var screen = document.createElement('div'); // holds dterm&cursor. origin of the cursor positioning
var dterm=document.createElement('div'); // area that shows the screen
var cursor=document.createElement('div'); // cursor
function debug(s) {
sdebug.innerHTML=s;
}
function error() {
sled.className='off';
debug("Connection lost timeout ts:"+((new Date).getTime()));
}
function opt_add(opt,name) {
opt.className='off';
opt.innerHTML=' '+name+' ';
dstat.appendChild(opt);
dstat.appendChild(document.createTextNode(' '));
}
function do_get(event) {
opt_get.className=(opt_get.className=='off')?'on':'off';
debug('GET '+opt_get.className);
}
function do_color(event) {
var o=opt_color.className=(opt_color.className=='off')?'on':'off';
if(o=='on')
query1=query0+"&c=1&k=";
else
query1=query0+"&k=";
debug('Color '+opt_color.className);
}
function is_clipboard_support() {
if (window.clipboardData) {
return true;
} else if(window.netscape) {
if (is_mozilla_clipboard_support() == '') {
return true;
} else {
return false;
}
}
return false;
}
function is_mozilla_clipboard_support(){
try {
netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
} catch (err) {
return err + '\nAccess denied, more info';
}
return '';
}
function mozilla_clipboard() {
// mozilla sucks
if ((err=is_mozilla_clipboard_support()) != '') {
debug(err);
return undefined;
}
var clip = Components.classes["@mozilla.org/widget/clipboard;1"].createInstance(Components.interfaces.nsIClipboard);
var trans = Components.classes["@mozilla.org/widget/transferable;1"].createInstance(Components.interfaces.nsITransferable);
if (!clip || !trans) {
return undefined;
}
trans.addDataFlavor("text/unicode");
clip.getData(trans,clip.kGlobalClipboard);
var str=new Object();
var strLength=new Object();
try {
trans.getTransferData("text/unicode",str,strLength);
} catch(err) {
return "";
}
if (str) {
str=str.value.QueryInterface(Components.interfaces.nsISupportsString);
}
if (str) {
return str.data.substring(0,strLength.value / 2);
} else {
return "";
}
}
function do_paste(event) {
var p=undefined;
if (window.clipboardData) {
p=window.clipboardData.getData("Text");
} else if(window.netscape) {
p=mozilla_clipboard();
}
if (p) {
debug('Pasted');
queue(encodeURIComponent(p));
} else {
}
}
function update() {
// debug("ts: "+((new Date).getTime())+" rmax:"+rmax);
if(sending==0) {
sending=1;
sled.className='on';
var r=new XMLHttpRequest();
var send="";
while(keybuf.length>0) {
send+=keybuf.pop();
}
var query=query1+send+"&t="+screenTimestamp;
if (additionalQueryString) query+='&'+additionalQueryString;
if(opt_get.className=='on') {
r.open("GET",endpoint+"?"+query,true);
if(ie) {
r.setRequestHeader("If-Modified-Since", "Sat, 1 Jan 2000 00:00:00 GMT");
}
} else {
r.open("POST",endpoint,true);
}
r.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
r.onreadystatechange = function () {
// debug("xhr:"+((new Date).getTime())+" state:"+r.readyState+" status:"+r.status+" statusText:"+r.statusText);
if (r.readyState==4) {
if(r.status==200) {
window.clearTimeout(error_timeout);
if(r.responseText.trim()!="© 2015 - 2025 Weber Informatics LLC | Privacy Policy