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/*
moo.fx, simple effects library built with prototype.js (http://prototype.conio.net).
by Valerio Proietti (http://mad4milk.net) MIT-style LICENSE.
for more info (http://moofx.mad4milk.net).
10/24/2005
v(1.0.2)
*/
//base
var fx = new Object();
fx.Base = function(){};
fx.Base.prototype = {
setOptions: function(options) {
this.options = {
duration: 500,
onComplete: ''
}
Object.extend(this.options, options || {});
},
go: function() {
this.duration = this.options.duration;
this.startTime = (new Date).getTime();
this.timer = setInterval (this.step.bind(this), 13);
},
step: function() {
var time = (new Date).getTime();
var Tpos = (time - this.startTime) / (this.duration);
if (time >= this.duration+this.startTime) {
this.now = this.to;
clearInterval (this.timer);
this.timer = null;
if (this.options.onComplete) setTimeout(this.options.onComplete.bind(this), 10);
}
else {
this.now = ((-Math.cos(Tpos*Math.PI)/2) + 0.5) * (this.to-this.from) + this.from;
//this time-position, sinoidal transition thing is from script.aculo.us
}
this.increase();
},
custom: function(from, to) {
if (this.timer != null) return;
this.from = from;
this.to = to;
this.go();
},
hide: function() {
this.now = 0;
this.increase();
},
clearTimer: function() {
clearInterval(this.timer);
this.timer = null;
}
}
//stretchers
fx.Layout = Class.create();
fx.Layout.prototype = Object.extend(new fx.Base(), {
initialize: function(el, options) {
this.el = $(el);
this.el.style.overflow = "hidden";
this.el.iniWidth = this.el.offsetWidth;
this.el.iniHeight = this.el.offsetHeight;
this.setOptions(options);
}
});
fx.Height = Class.create();
Object.extend(Object.extend(fx.Height.prototype, fx.Layout.prototype), {
increase: function() {
this.el.style.height = this.now + "px";
},
toggle: function() {
if (this.el.offsetHeight > 0) this.custom(this.el.offsetHeight, 0);
else this.custom(0, this.el.scrollHeight);
}
});
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