149 lines
4.1 KiB
JavaScript
149 lines
4.1 KiB
JavaScript
/*
|
|
* from noVNC: HTML5 VNC client
|
|
* Copyright (C) 2010 Joel Martin
|
|
* Licensed under LGPL-3 (see LICENSE.txt)
|
|
*
|
|
* See README.md for usage and integration instructions.
|
|
*/
|
|
|
|
"use strict";
|
|
/*jslint bitwise: false, white: false */
|
|
/*global Util, window, document */
|
|
|
|
// Globals defined here
|
|
var WebUtil = {}, $D;
|
|
|
|
/*
|
|
* Simple DOM selector by ID
|
|
*/
|
|
if (!window.$D) {
|
|
window.$D = function (id) {
|
|
if (document.getElementById) {
|
|
return document.getElementById(id);
|
|
} else if (document.all) {
|
|
return document.all[id];
|
|
} else if (document.layers) {
|
|
return document.layers[id];
|
|
}
|
|
return undefined;
|
|
};
|
|
}
|
|
|
|
|
|
/*
|
|
* ------------------------------------------------------
|
|
* Namespaced in WebUtil
|
|
* ------------------------------------------------------
|
|
*/
|
|
|
|
// init log level reading the logging HTTP param
|
|
WebUtil.init_logging = function() {
|
|
Util._log_level = (document.location.href.match(
|
|
/logging=([A-Za-z0-9\._\-]*)/) ||
|
|
['', Util._log_level])[1];
|
|
|
|
Util.init_logging();
|
|
};
|
|
WebUtil.init_logging();
|
|
|
|
|
|
WebUtil.dirObj = function (obj, depth, parent) {
|
|
var i, msg = "", val = "";
|
|
if (! depth) { depth=2; }
|
|
if (! parent) { parent= ""; }
|
|
|
|
// Print the properties of the passed-in object
|
|
for (i in obj) {
|
|
if ((depth > 1) && (typeof obj[i] === "object")) {
|
|
// Recurse attributes that are objects
|
|
msg += WebUtil.dirObj(obj[i], depth-1, parent + "." + i);
|
|
} else {
|
|
//val = new String(obj[i]).replace("\n", " ");
|
|
if (typeof(obj[i]) === "undefined") {
|
|
val = "undefined";
|
|
} else {
|
|
val = obj[i].toString().replace("\n", " ");
|
|
}
|
|
if (val.length > 30) {
|
|
val = val.substr(0,30) + "...";
|
|
}
|
|
msg += parent + "." + i + ": " + val + "\n";
|
|
}
|
|
}
|
|
return msg;
|
|
};
|
|
|
|
// Read a query string variable
|
|
WebUtil.getQueryVar = function(name, defVal) {
|
|
var re = new RegExp('[?][^#]*' + name + '=([^&#]*)');
|
|
if (typeof defVal === 'undefined') { defVal = null; }
|
|
return (document.location.href.match(re) || ['',defVal])[1];
|
|
};
|
|
|
|
|
|
/*
|
|
* Cookie handling. Dervied from: http://www.quirksmode.org/js/cookies.html
|
|
*/
|
|
|
|
// No days means only for this browser session
|
|
WebUtil.createCookie = function(name,value,days) {
|
|
var date, expires;
|
|
if (days) {
|
|
date = new Date();
|
|
date.setTime(date.getTime()+(days*24*60*60*1000));
|
|
expires = "; expires="+date.toGMTString();
|
|
}
|
|
else {
|
|
expires = "";
|
|
}
|
|
document.cookie = name+"="+value+expires+"; path=/";
|
|
};
|
|
|
|
WebUtil.readCookie = function(name, defaultValue) {
|
|
var i, c, nameEQ = name + "=", ca = document.cookie.split(';');
|
|
for(i=0; i < ca.length; i += 1) {
|
|
c = ca[i];
|
|
while (c.charAt(0) === ' ') { c = c.substring(1,c.length); }
|
|
if (c.indexOf(nameEQ) === 0) { return c.substring(nameEQ.length,c.length); }
|
|
}
|
|
return (typeof defaultValue !== 'undefined') ? defaultValue : null;
|
|
};
|
|
|
|
WebUtil.eraseCookie = function(name) {
|
|
WebUtil.createCookie(name,"",-1);
|
|
};
|
|
|
|
/*
|
|
* Alternate stylesheet selection
|
|
*/
|
|
WebUtil.getStylesheets = function() { var i, links, sheets = [];
|
|
links = document.getElementsByTagName("link");
|
|
for (i = 0; i < links.length; i += 1) {
|
|
if (links[i].title &&
|
|
links[i].rel.toUpperCase().indexOf("STYLESHEET") > -1) {
|
|
sheets.push(links[i]);
|
|
}
|
|
}
|
|
return sheets;
|
|
};
|
|
|
|
// No sheet means try and use value from cookie, null sheet used to
|
|
// clear all alternates.
|
|
WebUtil.selectStylesheet = function(sheet) {
|
|
var i, link, sheets = WebUtil.getStylesheets();
|
|
if (typeof sheet === 'undefined') {
|
|
sheet = 'default';
|
|
}
|
|
for (i=0; i < sheets.length; i += 1) {
|
|
link = sheets[i];
|
|
if (link.title === sheet) {
|
|
Util.Debug("Using stylesheet " + sheet);
|
|
link.disabled = false;
|
|
} else {
|
|
//Util.Debug("Skipping stylesheet " + link.title);
|
|
link.disabled = true;
|
|
}
|
|
}
|
|
return sheet;
|
|
};
|