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