| admin | b0dd10f | 2006-08-25 17:25:49 +0000 | [diff] [blame] | 1 | /*
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| 2 | moo.fx, simple effects library built with prototype.js (http://prototype.conio.net).
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| 3 | by Valerio Proietti (http://mad4milk.net) MIT-style LICENSE.
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| 4 | for more info (http://moofx.mad4milk.net).
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| 5 | 10/24/2005
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| 6 | v(1.0.2)
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| 7 | */
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| 8 |
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| 9 | //base
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| 10 | var fx = new Object();
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| 11 | fx.Base = function(){};
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| 12 | fx.Base.prototype = {
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| 13 | setOptions: function(options) {
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| 14 | this.options = {
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| 15 | duration: 500,
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| 16 | onComplete: ''
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| 17 | }
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| 18 | Object.extend(this.options, options || {});
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| 19 | },
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| 20 |
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| 21 | go: function() {
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| 22 | this.duration = this.options.duration;
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| 23 | this.startTime = (new Date).getTime();
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| 24 | this.timer = setInterval (this.step.bind(this), 13);
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| 25 | },
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| 26 |
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| 27 | step: function() {
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| 28 | var time = (new Date).getTime();
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| 29 | var Tpos = (time - this.startTime) / (this.duration);
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| 30 | if (time >= this.duration+this.startTime) {
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| 31 | this.now = this.to;
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| 32 | clearInterval (this.timer);
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| 33 | this.timer = null;
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| 34 | if (this.options.onComplete) setTimeout(this.options.onComplete.bind(this), 10);
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| 35 | }
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| 36 | else {
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| 37 | this.now = ((-Math.cos(Tpos*Math.PI)/2) + 0.5) * (this.to-this.from) + this.from;
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| 38 | //this time-position, sinoidal transition thing is from script.aculo.us
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| 39 | }
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| 40 | this.increase();
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| 41 | },
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| 42 |
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| 43 | custom: function(from, to) {
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| 44 | if (this.timer != null) return;
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| 45 | this.from = from;
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| 46 | this.to = to;
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| 47 | this.go();
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| 48 | },
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| 49 |
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| 50 | hide: function() {
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| 51 | this.now = 0;
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| 52 | this.increase();
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| 53 | },
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| 54 |
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| 55 | clearTimer: function() {
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| 56 | clearInterval(this.timer);
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| 57 | this.timer = null;
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| 58 | }
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| 59 | }
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| 60 |
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| 61 | //stretchers
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| 62 | fx.Layout = Class.create();
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| 63 | fx.Layout.prototype = Object.extend(new fx.Base(), {
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| 64 | initialize: function(el, options) {
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| 65 | this.el = $(el);
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| 66 | this.el.style.overflow = "hidden";
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| 67 | this.el.iniWidth = this.el.offsetWidth;
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| 68 | this.el.iniHeight = this.el.offsetHeight;
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| 69 | this.setOptions(options);
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| 70 | }
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| 71 | });
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| 72 |
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| 73 | fx.Height = Class.create();
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| 74 | Object.extend(Object.extend(fx.Height.prototype, fx.Layout.prototype), {
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| 75 | increase: function() {
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| 76 | this.el.style.height = this.now + "px";
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| 77 | },
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| 78 |
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| 79 | toggle: function() {
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| 80 | if (this.el.offsetHeight > 0) this.custom(this.el.offsetHeight, 0);
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| 81 | else this.custom(0, this.el.scrollHeight);
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| 82 | }
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| 83 | });
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| 84 |
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| 85 | fx.Width = Class.create();
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| 86 | Object.extend(Object.extend(fx.Width.prototype, fx.Layout.prototype), {
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| 87 | increase: function() {
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| 88 | this.el.style.width = this.now + "px";
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| 89 | },
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| 90 |
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| 91 | toggle: function(){
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| 92 | if (this.el.offsetWidth > 0) this.custom(this.el.offsetWidth, 0);
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| 93 | else this.custom(0, this.el.iniWidth);
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| 94 | }
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| 95 | });
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| 96 |
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| 97 | //fader
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| 98 | fx.Opacity = Class.create();
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| 99 | fx.Opacity.prototype = Object.extend(new fx.Base(), {
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| 100 | initialize: function(el, options) {
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| 101 | this.el = $(el);
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| 102 | this.now = 1;
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| 103 | this.increase();
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| 104 | this.setOptions(options);
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| 105 | },
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| 106 |
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| 107 | increase: function() {
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| 108 | if (this.now == 1) this.now = 0.9999;
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| 109 | if (this.now > 0 && this.el.style.visibility == "hidden") this.el.style.visibility = "visible";
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| 110 | if (this.now == 0) this.el.style.visibility = "hidden";
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| 111 | if (window.ActiveXObject) this.el.style.filter = "alpha(opacity=" + this.now*100 + ")";
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| 112 | this.el.style.opacity = this.now;
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| 113 | },
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| 114 |
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| 115 | toggle: function() {
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| 116 | if (this.now > 0) this.custom(1, 0);
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| 117 | else this.custom(0, 1);
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| 118 | }
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| 119 | }); |