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//////////////////////////////
// Browser
//////////////////////////////
function Browser(location, XHR) {
this.location = location;
this.delay = 25;
this.XHR = XHR;
this.setTimeout = function(fn, delay) {
window.setTimeout(fn, delay);
};
this.expectedUrl = location.href;
this.listeners = [];
}
Browser.prototype = {
xhr: function(method, url, callback){
var xhr = new this.XHR();
xhr.open(method, url, true);
xhr.onreadystatechange = function() {
if (xhr.readyState == 4) {
callback(xhr.status, xhr.responseText);
}
};
xhr.send('');
},
watchUrl: function(fn){
this.listeners.push(fn);
},
startUrlWatcher: function() {
var self = this;
(function pull () {
if (self.expectedUrl !== self.location.href) {
foreach(self.listeners, function(listener){
try {
listener(self.location.href);
} catch (e) {
error(e);
}
});
self.expectedUrl = self.location.href;
}
self.setTimeout(pull, self.delay);
})();
},
setUrl: function(url) {
var existingURL = this.location.href;
if (!existingURL.match(/#/))
existingURL += '#';
if (existingURL != url)
this.location.href = url;
},
getUrl: function() {
return this.location.href;
}
};
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