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
   7         o.oldComplete = o.onComplete;
   8         o.onComplete = function(){
   9                 $.dequeue(this, 'fx');
  10                 if ( o.oldComplete && o.oldComplete.constructor == Function ) {
  11                         $.apply( this, o.oldComplete );
  12                 }
  13         };
  14
  15         return o;
  16 };
  17
  18 $.queue = {};
  19
  20 $.dequeue = function(elem,type){
  21         type = type || 'fx';
  22
  23         if ( elem.$$queue && elem.$$queue[type] ) {
  24                 // Remove self
  25                 elem.$$queue[type].shift();
  26
  27                 // Get next function
  28                 var f = elem.$$queue[type][0];
  29
  30                 if ( f ) {
  31                         $.apply( elem, f );
  32                 }
  33         }
  34 };
  35
  36 $.fn.queue = function(type,fn){
  37         if ( !fn ) {
  38                 fn = type;
  39                 type = 'fx';
  40         }
  41
  42         return this.each(function(){
  43                 if ( !this.$$queue ) {
  44                         this.$$queue = {};
  45                 }
  46
  47                 if ( !this.$$queue[type] ) {
  48                         this.$$queue[type] = [];
  49                 }
  50
  51                 this.$$queue[type].push( fn );
  52
  53                 if ( this.$$queue[type].length == 1 ) {
  54                         $.apply(this,fn);
  55                 }
  56         });
  57 };
  58
  59 $.fn._hide = $.fn.hide;
  60
  61 $.fn.hide = function(a,o) {
  62         o = $.speed(a,o);
  63         return a ? this.queue(function(){
  64                 new $.fx.FadeSize(this,o).hide();
  65         }) : this._hide();
  66 };
  67
  68 $.fn._show = $.fn.show;
  69
  70 $.fn.show = function(a,o) {
  71         o = $.speed(a,o);
  72         return a ? this.queue(function(){
  73                 new $.fx.FadeSize(this,o).show();
  74         }) : this._show();
  75 };
  76
  77 $.fn.slideDown = function(a,o) {
  78         o = $.speed(a,o);
  79         return this.queue(function(){
  80                 new $.fx.Resize(this,o).show("height");
  81         });
  82 };
  83
  84 $.fn.slideUp = function(a,o) {
  85         o = $.speed(a,o);
  86         return this.queue(function(){
  87                 new $.fx.Resize(this,o).hide("height");
  88         });
  89 };
  90
  91 $.fn.fadeOut = function(a,o) {
  92         o = $.speed(a,o);
  93         return a ? this.queue(function(){
  94                 new $.fx.Opacity(this,o,1).hide();
  95         }) : this._hide();
  96 };
  97
  98 $.fn.fadeIn = function(a,o) {
  99         o = $.speed(a,o);
 100         return a ? this.queue(function(){
 101                 new $.fx.Opacity(this,o,1).show();
 102         }) : this._show();
 103 };
 104
 105 $.fn.fadeTo = function(a,ev,o) {
 106         o = $.speed(a,o);
 107         return a ? this.queue(function(){
 108                 ef = new $.fx.Opacity(this,o);
 109                 ef.custom(ef.cur(),parseFloat(ev));
 110                 ef.show();
 111         }) : this._show();
 112 };
 113
 114 $.fn.center = function(f) {
 115         return this.each(function(){
 116                 if ( !f && this.nodeName == 'IMG' &&
 117                                  !this.offsetWidth && !this.offsetHeight ) {
 118                         var self = this;
 119                         setTimeout(function(){
 120                                 $(self).center(true);
 121                         }, 13);
 122                 } else {
 123                         var s = this.style;
 124                         var p = this.parentNode;
 125                         if ( $.css(p,"position") == 'static' ) {
 126                                 p.style.position = 'relative';
 127                         }
 128                         s.position = 'absolute';
 129                         s.left = (($.css(p,"width") - $.css(this,"width"))/2) + "px";
 130                         s.top = (($.css(p,"height") - $.css(this,"height"))/2) + "px";
 131                 }
 132   });
 133 };
 134
 135 $.setAuto = function(e,p) {
 136         var a = e.style[p];
 137         var o = $.css(e,p);
 138         e.style[p] = 'auto';
 139         var n = $.css(e,p);
 140         if ( o != n ) {
 141                 e.style[p] = a;
 142         }
 143 };
 144
 145 /*
 146  * I originally wrote fx() as a clone of moo.fx and in the process
 147  * of making it small in size the code became illegible to sane
 148  * people. You've been warned.
 149  */
 150
 151 $.fx = function(el,op,ty){
 152
 153         var z = this;
 154
 155         // The users options
 156         z.o = {
 157                 duration: (op && op.duration) || 400,
 158                 onComplete: (op && op.onComplete) || op
 159         };
 160
 161         // The element
 162         z.el = el;
 163
 164         // The styles
 165         var y = z.el.style;
 166
 167         // Simple function for setting a style value
 168         z.a = function(){
 169                 z.el.style[ty] = z.now+'px';
 170         };
 171
 172         // Figure out the maximum number to run to
 173         z.max = function(){return z.el["$$orig"+ty]||z.cur();};
 174
 175         // Get the current size
 176         z.cur = function(){return $.css(z.el,ty);};
 177
 178         // Start an animation from one number to another
 179         z.custom = function(from,to){
 180                 z.startTime = (new Date()).getTime();
 181                 z.now = from;
 182                 z.a();
 183
 184                 z.timer = setInterval(function(){
 185                         z.step(from, to);
 186                 }, 13);
 187         };
 188
 189         // Simple 'show' function
 190         z.show = function(){
 191                 y.display = "block";
 192                 z.o.auto = true;
 193                 z.custom(0,z.max());
 194         };
 195
 196         // Simple 'hide' function
 197         z.hide = function(){
 198                 // Remember where we started, so that we can go back to it later
 199                 z.el["$$orig"+ty] = this.cur();
 200
 201                 // Begin the animation
 202                 z.custom(z.cur(),0);
 203         };
 204
 205         // Toggle between showing and hiding an element
 206         z.toggle = function(){
 207                 if ( z.cur() > 0 ) {
 208                         z.hide();
 209                 } else {
 210                         z.show();
 211                 }
 212         };
 213
 214         // IE has trouble with opacity if it doesn't have layout
 215         if ( $.browser == "msie" && !z.el.currentStyle.hasLayout ) {
 216                 y.zoom = 1;
 217         }
 218
 219         // Remember  the overflow of the element
 220         z.oldOverflow = y.overflow;
 221
 222         // Make sure that nothing sneaks out
 223         y.overflow = "hidden";
 224
 225         // Each step of an animation
 226         z.step = function(firstNum, lastNum){
 227                 var t = (new Date()).getTime();
 228
 229                 if (t > z.o.duration + z.startTime) {
 230                         // Stop the timer
 231                         clearInterval(z.timer);
 232                         z.timer = null;
 233
 234                         z.now = lastNum;
 235                         z.a();
 236
 237                         // Reset the overflow
 238                         y.overflow = z.oldOverflow;
 239
 240                         // If the element was shown, and not using a custom number,
 241                         // set its height and/or width to auto
 242                         if ( (ty == "height" || ty == "width") && z.o.auto ) {
 243                                 $.setAuto( z.el, ty );
 244                         }
 245
 246                         // If a callback was provided, execute it
 247                         if( z.o.onComplete.constructor == Function ) {
 248
 249                                 // Yes, this is a weird place for this, but it needs to be executed
 250                                 // only once per cluster of effects.
 251                                 // If the element is, effectively, hidden - hide it
 252                                 if ( y.height == "0px" || y.width == "0px" ) {
 253                                         y.display = "none";
 254                                 }
 255
 256                                 $.apply( z.el, z.o.onComplete );
 257                         }
 258                 } else {
 259                         // Figure out where in the animation we are and set the number
 260                         var p = (t - this.startTime) / z.o.duration;
 261                         z.now = ((-Math.cos(p*Math.PI)/2) + 0.5) * (lastNum-firstNum) + firstNum;
 262
 263                         // Perform the next step of the animation
 264                         z.a();
 265                 }
 266         };
 267
 268 };
 269
 270 $.fx.fn = ["show","hide","toggle"];
 271 $.fx.ty = ["Height","Width","Left","Top"];
 272
 273 (function(){
 274         for(var $i in $.fx.ty){(function(){
 275                 var c = $.fx.ty[$i];
 276                 $.fx[c] = function(a,b){
 277                         return new $.fx(a,b,c.toLowerCase());
 278                 };
 279         })();}
 280 })();
 281
 282 $.fx.Opacity = function(a,b,sv){
 283         var o = new $.fx(a,b,"opacity");
 284         o.cur = function(){return parseFloat(o.el.style.opacity);};
 285         o.a = function() {
 286                 var e = o.el.style;
 287                 if (o.now == 1) { o.now = 0.9999; }
 288                 if (window.ActiveXObject) {
 289                         e.filter = "alpha(opacity=" + o.now*100 + ")";
 290                 }
 291                 e.opacity = o.now;
 292         };
 293         o.io = o.now = (sv || o.cur());
 294         o.a();
 295         return o;
 296 };
 297
 298 $.fx.Resize = function(e,o){
 299         var z = this;
 300         var h = new $.fx.Height(e,o);
 301         if(o) { o.onComplete = null; }
 302         var w = new $.fx.Width(e,o);
 303         function c(a,b,d){return (!a||a==d||b==d);}
 304         for(var i in $.fx.fn){(function(){
 305                 var j = $.fx.fn[i];
 306                 z[j] = function(a,b){
 307                         if(c(a,b,"height")) { h[j](); }
 308                         if(c(a,b,"width")) { w[j](); }
 309                 };
 310         })();}
 311 };
 312
 313 $.fx.FadeSize = function(e,o){
 314         var z = this;
 315         var r = new $.fx.Resize(e,o);
 316         if(o) { o.onComplete = null; }
 317         var p = new $.fx.Opacity(e,o,1);
 318         for(var i in $.fx.fn){(function(){
 319                 var j = $.fx.fn[i];
 320                 z[j] = function(a,b){p[j]();r[j](a,b);};
 321         })();}
 322 };