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themes/base: xhr.js: clean code style, implement XHR.get() and XHR.poll() convenience functions

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This commit is contained in:
Jo-Philipp Wich 2011-09-26 00:05:17 +00:00
parent 2829139f35
commit b2b3b181d8
1 changed files with 82 additions and 41 deletions
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41
themes/base/htdocs/luci-static/resources/xhr.js
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@ -19,6 +19,9 @@ XHR = function()
}
this.busy = function() {
if (!this._xmlHttp)
return false;
switch (this._xmlHttp.readyState)
{
case 1:
@ -161,3 +164,41 @@ XHR = function()
return obj;
}
}
XHR.get = function(url, data, callback)
{
(new XHR()).get(url, data, callback);
}
XHR.poll = function(interval, url, data, callback)
{
if (isNaN(interval) || interval <= 1)
interval = 5;
if (!XHR._q)
{
XHR._t = 0;
XHR._q = [ ];
}
XHR._q.push({
interval: interval,
callback: callback,
url: url,
data: data,
xhr: new XHR()
});
if (!XHR._i)
{
XHR._i = window.setInterval(function() {
for (var i = 0, e = XHR._q[0]; i < XHR._q.length; e = XHR._q[++i])
{
if (!(XHR._t % e.interval) && !e.xhr.busy())
e.xhr.get(e.url, e.data, e.callback);
}
XHR._t++;
}, 1000);
}
}