fx/fx.js

   1 $.speed = function(s,o) {
   2         if ( o && o.constructor == Function ) o = { onComplete: o };
   3         o = o || {};
   4         var ss = {"crawl":1200,"xslow":850,"slow":600,"medium":400,"fast":200,"xfast":75,"normal":400};
   5         o.duration = typeof s == "number" ? s : ss[s] || 400;
   6         return o;
   7 };
   8
   9 $.fn.hide = function(a,o) {
  10         o = $.speed(a,o);
  11         return a ? this.each(function(){
  12                 new fx.FadeSize(this,o).hide();
  13         }) : this._hide();
  14 };
  15
  16 $.fn.show = function(a,o) {
  17         o = $.speed(a,o);
  18         return a ? this.each(function(){
  19                 new fx.FadeSize(this,o).show();
  20         }) : this._show();
  21 };
  22
  23 $.fn.slideDown = function(a,o) {
  24         o = $.speed(a,o);
  25         return this.each(function(){
  26                 new fx.Resize(this,o).show("height");
  27         });
  28 };
  29
  30 $.fn.slideUp = function(a,o) {
  31         o = $.speed(a,o);
  32         return this.each(function(){
  33                 new fx.Resize(this,o).hide("height");
  34         });
  35 };
  36
  37 $.fn.fadeOut = function(a,o) {
  38         o = $.speed(a,o);
  39         return a ? this.each(function(){
  40                 new fx.Opacity(this,o).hide();
  41         }) : this._hide();
  42 };
  43
  44 $.fn.fadeIn = function(a,o) {
  45         o = $.speed(a,o);
  46         return a ? this.each(function(){
  47                 new fx.Opacity(this,o).show();
  48         }) : this._show();
  49 };
  50
  51 $.fn.center = function(f) {
  52         return this.each(function(){
  53                 if ( !f && this.nodeName == 'IMG' &&
  54                                  !this.offsetWidth && !this.offsetHeight ) {
  55                         var self = this;
  56                         setTimeout(function(){
  57                                 $(self).center(true);
  58                         }, 13);
  59                 } else {
  60                         var s = this.style;
  61                         var p = this.parentNode;
  62                         if ( $.css(p,"position") == 'static' )
  63                                 p.style.position = 'relative';
  64                         s.position = 'absolute';
  65                         s.left = parseInt(($.css(p,"width") - $.css(this,"width"))/2) + "px";
  66                         s.top = parseInt(($.css(p,"height") - $.css(this,"height"))/2) + "px";
  67                 }
  68   });
  69 };
  70
  71 $.setAuto = function(e,p) {
  72         var a = e.style[p];
  73         var o = $.css(e,p);
  74         e.style[p] = 'auto';
  75         var n = $.css(e,p);
  76         if ( o != n )
  77                 e.style[p] = a;
  78 };
  79
  80 /*
  81  * I originally wrote fx() as a clone of moo.fx and in the process
  82  * of making it small in size the code became illegible to sane
  83  * people. You've been warned.
  84  */
  85
  86 function fx(el,op,ty,tz){
  87         var z = this;
  88         z.a = function(){z.el.style[ty]=z.now+z.o.unit};
  89         z.max = function(){return z.el["io"+ty]||z.el["natural"+tz]||z.el["scroll"+tz]||z.cur()};
  90         z.cur = function(){return parseInt($.getCSS(z.el,ty))};
  91         z.show = function(){z.ss("block");z.custom(0,z.max())};
  92         z.hide = function(){z.el.$o=$.getCSS(z.el,"overflow");z.el["io"+ty]=this.cur();z.custom(z.cur(),0)};
  93         z.ss = function(a){if(y.display!=a)y.display=a};
  94         z.toggle = function(){if(z.cur()>0)z.hide();else z.show()};
  95         z.modify = function(a){z.custom(z.cur(),z.cur()+a)};
  96         z.clear = function(){clearInterval(z.timer);z.timer=null};
  97         z.el = el.constructor==String?document.getElementById(el):el;
  98         var y = z.el.style;
  99         z.oo = y.overflow;
 100         y.overflow = "hidden";
 101         z.o = {
 102                 unit: "px",
 103                 duration: (op && op.duration) || 400,
 104                 onComplete: (op && op.onComplete) || op
 105         };
 106         z.step = function(f,tt){
 107                 var t = (new Date).getTime();
 108                 var p = (t - z.s) / z.o.duration;
 109                 if (t >= z.o.duration+z.s) {
 110                         z.now = tt;
 111                         z.clear();
 112                         setTimeout(function(){
 113                                 y.overflow = z.oo;
 114                                 if(y.height=="0px"||y.width=="0px")z.ss("none");
 115                                 if ( ty != "opacity" ) {
 116                                         $.setAuto( z.el, "height" );
 117                                         $.setAuto( z.el, "width" );
 118                                 }
 119                                 if(z.o.onComplete.constructor == Function){z.el.$_ = z.o.onComplete;z.el.$_();}
 120                         },13);
 121                 } else
 122                         z.now = ((-Math.cos(p*Math.PI)/2) + 0.5) * (tt-f) + f;
 123                 z.a();
 124         };
 125         z.custom = function(f,t){
 126                 if(z.timer)return;this.now=f;z.a();z.io=z.cur();z.s=(new Date).getTime();
 127                 z.timer=setInterval(function(){z.step(f,t);}, 13);
 128         };
 129 }
 130 fx.fn = ["show","hide","toggle"];
 131 fx.ty = ["Height","Width","Left","Top"];
 132 for(var i in fx.ty){(function(){
 133         var c = fx.ty[i];
 134         fx[c] = function(a,b){
 135                 return new fx(a,b,c.toLowerCase(),c);};
 136 })()}
 137 fx.Opacity = function(a,b){
 138         var o = new fx(a,b,"opacity");
 139         o.cur = function(){return parseFloat(o.el.style.opacity);};
 140         o.a = function() {
 141                 var e = o.el.style;
 142                 if (o.now == 1) o.now = 0.9999;
 143                 if (window.ActiveXObject)
 144                         e.filter = "alpha(opacity=" + o.now*100 + ")";
 145                 e.opacity = o.now;
 146         };
 147         o.io = o.now = 1;
 148         o.a();
 149         return o;
 150 };
 151 fx.Resize = function(e,o){
 152         var z = this;
 153         var h = new fx.Height(e,o);
 154         if(o) o.onComplete = null;
 155         var w = new fx.Width(e,o);
 156         function c(a,b,c){return (!a||a==c||b==c);}
 157         for(var i in fx.fn){(function(){
 158                 var j = fx.fn[i];
 159                 z[j] = function(a,b){
 160                         if(c(a,b,"height")) h[j]();
 161                         if(c(a,b,"width")) w[j]();
 162                 };
 163         })()}
 164         z.modify = function(c,d){
 165                 h.modify(c);
 166                 w.modify(d);
 167         };
 168 };
 169 fx.FadeSize = function(e,o){
 170         var z = this;
 171         var r = new fx.Resize(e,o);
 172         if(o) o.onComplete = null;
 173         var p = new fx.Opacity(e,o);
 174         for(var i in fx.fn){(function(){
 175                 var j = fx.fn[i];
 176                 z[j] = function(a,b){p[j]();r[j](a,b);};
 177         })()}
 178 };