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/**
* @copyright Copyright (c) 2011 Romain d'Alverny
* @license http://www.gnu.org/licenses/gpl-3.0.html GNU GPL v3 and later
*
* Redirect browser online IF it is in online mode.
* Or stay on offline page and listen to online event.
*
* Browser targets: Mozilla Firefox 3.6+, Konqueror.
*/
function StartPage(url, image) {
this.location = url;
this.onlinePx = image;
}
StartPage.prototype.run = function () {
if (false && navigator.onLine !== null) {
!navigator.onLine ? this.actOnline() : this.actOffline();
} else { // for khtml-based browsers
try {
var sp = this,
i = document.createElement('img');
window.alert = function() {};
i.id = 'i';
i.onload = function () { console.log(sp); sp.actOnline(); };
i.onerror = function () { sp.actOffline(); };
i.src = this.onlinePx + '?' + new Date().getTime();
document.getElementsByTagName('body').item(0).appendChild(i);
}
catch (e) { return false; }
}
return true;
}
StartPage.prototype.actOnline = function () {
var productId = '',
lang = '',
args = new Array;
if (null !== (product_id = this.getProductId())) {
args.push('p=' + product_id);
}
if (null !== (lang = this.getLocale())) {
args.push('l=' + lang);
}
if (args.length > 0) {
this.location = [this.location, args.join('&')].join('?');
}
parent.location = this.location;
return true;
}
StartPage.prototype.actOffline = function () {
var p = this,
i = document.getElementById("i");
if (null !== i) {
i.parentNode.removeChild(i);
}
document.getElementsByTagName("body").item(0).setAttribute("class", "offline");
document.body.addEventListener("online", function () { p.actOnline(); }, false);
return true;
}
StartPage.prototype.getLocale = function () {
var ret = null;
try {
ret = parent.window.document.documentElement.attributes.getNamedItem('lang').value.trim();
} catch (e) {}
return ret;
}
StartPage.prototype.getProductId = function () {
var ret = null,
t = document.getElementsByTagName('meta');
for (var i = 0; i < t.length; i += 1) {
if (t.item(i).getAttribute('name') == 'product:id') {
ret = t.item(i).getAttribute('content').trim();
break;
}
}
return ret;
}
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