setitagila-informer/background.js

	var checkPeriod = 5 * 60000;
	var dataurl = 'http://portal.setitagila.ru/reminder.php?ver=informst1.0';
	var btn;
	var storage = widget.preferences;
	var iswarning = false;
	var islowb = false;
	var islowt = false;
	//var date;
	var balance = '-';
	var tariffnow = '-';
	var tariffthen = '-';
	var tariffstatus = '-';
	var tariffprice = '-';
	var blinkTimer;

	opera.extension.addEventListener('message', function(e)
    {
    	switch(e.data.informst) {
			case 'doNotify': doNotify(); break;
			case 'fillPopup': fillPopup(e); break;
		}
    }, false);

	function blink()
	{
		btn.badge.backgroundColor = '#f0ffff';
		if (btn.badge.color != '#ff0000') btn.badge.color = '#ff0000'; else btn.badge.color = 'black';
	}

    function fillPopup(e) {
		e.source.postMessage({informst_fillpopup: {balance: balance, tariffnow: tariffnow, tariffthen: tariffthen, tariffstatus: tariffstatus, tariffprice: tariffprice, iswarning: iswarning, islowb: islowb, islowt: islowt}});
	}

	function doNotify() {
		iswarning = false;
		islowb = false;
		islowt = false;
		if (storage.informst_notify1 == 1)
		{
			if (balance <= storage.informst_balanceRub)
			{
                islowb = true;
				iswarning = true;
			}
		}
		if (storage.informst_notify2 == 1)
		{
			dt = new Date();
			dim = new Date(dt.getFullYear(), 1 + dt.getMonth(), 0).getDate();
			if ((dim - dt.getDate()) <= storage.informst_balanceDay & (balance - (dim - dt.getDate() + 1) * 8) <= tariffprice)
			{
	            islowt = true;
				iswarning = true;
			}
		}

		btn.title = 'Текущий баланс:			' + balance + ' руб.' + "\r\n" +
		'Текущий тариф:			' + tariffnow + ' (' + (tariffstatus == 'on' ? 'включен' : 'ОТКЛЮЧЕН') + ")\r\n" +
		'Тариф в след. месяце:		' + tariffthen + "\r\n" +
		'Стоимость тарифа в след. месяце:	' + tariffprice + ' руб.';

		btn.popup.height = 130;
		if (islowb)	btn.popup.height += 27;
		if (islowt)	btn.popup.height += 27;

		if (iswarning == true)
		{
			if (islowb || islowt) btn.title += "\r\n";
			if (islowb) btn.title += "\r\nУ Вас мало денег на счету!";
			if (islowt) btn.title += "\r\nСредств не хватит на начало след. месяца!";
			if (storage.informst_warn2 == 1)
			{
				clearInterval(blinkTimer);
				blinkTimer = setInterval(blink, 1000);
			} else {
				clearInterval(blinkTimer);
				btn.badge.color = '#FF0000';
				btn.badge.backgroundColor = '#F0FFFF';
			}
		}
		else
		{
			clearInterval(blinkTimer);
			btn.badge.color = storage.informst_bstyle_fcolor || 'black';
			btn.badge.backgroundColor = storage.informst_bstyle_bcolor || 'white';
		}
	}

	function fetchData() {
		var req = new XMLHttpRequest();
		req.onreadystatechange = function()
		{
			if (req.readyState == 4)
			{
				clearTimeout(reqTimeout);
				var datatag = req.responseXML.getElementsByTagName('data')[0];
				//date = datatag.getElementsByTagName('date')[0].textContent;
				balance = parseFloat(datatag.getElementsByTagName('balance')[0].textContent);
				tariffnow = datatag.getElementsByTagName('tariffnow')[0].textContent;
				tariffthen = datatag.getElementsByTagName('tariffthen')[0].textContent;
				tariffstatus = datatag.getElementsByTagName('tariffstatus')[0].textContent;
				tariffprice = parseInt(datatag.getElementsByTagName('tariffprice')[0].textContent);
				btn.badge.display = 'block';
				btn.badge.textContent = balance;
				btn.disabled = false;
				doNotify();
			}
		};
		req.open('GET', dataurl + '&timerand=' + (new Date()).getTime(), true);
		var reqTimeout = setTimeout(timeoutFunc, 5000);
		function timeoutFunc(){
			req.abort();
		}
		req.send(null);
	}

	window.addEventListener('DOMContentLoaded', function () {

		checkTimer = setInterval(fetchData, checkPeriod);
		fetchData();

		btn = opera.contexts.toolbar.createItem({
			disabled: true,
			title: 'Информер баланса "СетиТагила"',
			icon: 'icons/main.png',
	 	    badge: { display: 'none', textContent: '', color: 'white', backgroundColor: 'black' },
			popup: { href: "popup.html", width: 670, height: 130 }
		});
		opera.contexts.toolbar.addItem(btn);
		doNotify();
	}, false);