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counter.js
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counter.js
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Counter = function() {
this.initial_time = (new Date).getTime();
};
Counter.COUNT = 60;
Counter.prototype = {
get_current_seconds: function() {
var current_time = (new Date).getTime();
var current_miliseconds = current_time - this.initial_time
return (Math.round(current_miliseconds/1000));
},
run: function(object, callback_method) {
var self = this;
self.interval = setInterval(function() {
var current_seconds = self.get_current_seconds();
var remining = Counter.COUNT - current_seconds;
if (remining < 0) {
self.stop();
} else {
if (callback_method) {
object[callback_method](remining);
}
}
}, 1000);
},
stop: function() {
clearInterval(this.interval);
}
};
CounterView = function(element) {
this.el = element;
this.counter = new Counter();
this.counter.run(this, "render");
};
CounterView.prototype = {
render: function(time) {
var date = new Date(null);
date.setSeconds(time);
var time_string = date.toTimeString().substr(3, 5);
this.el.text(time_string);
}
};
jQuery(function(){
$("#start").click(function(e) {
e.preventDefault();
view = new CounterView($(".countdown"));
});
});