src/fx/fx.js

   1 jQuery.fn.extend({
   2         show: function(speed,callback){
   3                 return speed ?
   4                         this.animate({
   5                                 height: "show", width: "show", opacity: "show"
   6                         }, speed, callback) :
   7
   8                         this.filter(":hidden").each(function(){
   9                                 this.style.display = this.oldblock ? this.oldblock : "";
  10                                 if ( jQuery.css(this,"display") == "none" )
  11                                         this.style.display = "block";
  12                         }).end();
  13         },
  14
  15         hide: function(speed,callback){
  16                 return speed ?
  17                         this.animate({
  18                                 height: "hide", width: "hide", opacity: "hide"
  19                         }, speed, callback) :
  20
  21                         this.filter(":visible").each(function(){
  22                                 this.oldblock = this.oldblock || jQuery.css(this,"display");
  23                                 if ( this.oldblock == "none" )
  24                                         this.oldblock = "block";
  25                                 this.style.display = "none";
  26                         }).end();
  27         },
  28
  29         // Save the old toggle function
  30         _toggle: jQuery.fn.toggle,
  31
  32         toggle: function( fn, fn2 ){
  33                 return jQuery.isFunction(fn) && jQuery.isFunction(fn2) ?
  34                         this._toggle( fn, fn2 ) :
  35                         fn ?
  36                                 this.animate({
  37                                         height: "toggle", width: "toggle", opacity: "toggle"
  38                                 }, fn, fn2) :
  39                                 this.each(function(){
  40                                         jQuery(this)[ jQuery(this).is(":hidden") ? "show" : "hide" ]();
  41                                 });
  42         },
  43
  44         slideDown: function(speed,callback){
  45                 return this.animate({height: "show"}, speed, callback);
  46         },
  47
  48         slideUp: function(speed,callback){
  49                 return this.animate({height: "hide"}, speed, callback);
  50         },
  51
  52         slideToggle: function(speed, callback){
  53                 return this.animate({height: "toggle"}, speed, callback);
  54         },
  55
  56         fadeIn: function(speed, callback){
  57                 return this.animate({opacity: "show"}, speed, callback);
  58         },
  59
  60         fadeOut: function(speed, callback){
  61                 return this.animate({opacity: "hide"}, speed, callback);
  62         },
  63
  64         fadeTo: function(speed,to,callback){
  65                 return this.animate({opacity: to}, speed, callback);
  66         },
  67
  68         animate: function( prop, speed, easing, callback ) {
  69                 return this.queue(function(){
  70                         var hidden = jQuery(this).is(":hidden"),
  71                                 opt = jQuery.speed(speed, easing, callback),
  72                                 self = this;
  73
  74                         for ( var p in prop ) {
  75                                 if ( prop[p] == "hide" && hidden || prop[p] == "show" && !hidden )
  76                                         return jQuery.isFunction(opt.complete) && opt.complete.apply(this);
  77
  78                                 if ( p == "height" || p == "width" ) {
  79                                         // Store display property
  80                                         opt.display = jQuery.css(this, "display");
  81
  82                                         // Make sure that nothing sneaks out
  83                                         opt.overflow = this.style.overflow;
  84                                 }
  85                         }
  86
  87                         if ( opt.overflow != null )
  88                                 this.style.overflow = "hidden";
  89
  90                         this.curAnim = jQuery.extend({}, prop);
  91
  92                         jQuery.each( prop, function(name, val){
  93                                 var e = new jQuery.fx( self, opt, name );
  94                                 if ( val.constructor == Number )
  95                                         e.custom( e.cur() || 0, val );
  96                                 else
  97                                         e[ val == "toggle" ? hidden ? "show" : "hide" : val ]( prop );
  98                         });
  99
 100                         // For JS strict compliance
 101                         return true;
 102                 });
 103         },
 104
 105         queue: function(type,fn){
 106                 if ( !fn ) {
 107                         fn = type;
 108                         type = "fx";
 109                 }
 110
 111                 return this.each(function(){
 112                         if ( !this.queue )
 113                                 this.queue = {};
 114
 115                         if ( !this.queue[type] )
 116                                 this.queue[type] = [];
 117
 118                         this.queue[type].push( fn );
 119
 120                         if ( this.queue[type].length == 1 )
 121                                 fn.apply(this);
 122                 });
 123         },
 124
 125         stop: function(){
 126                 var timers = jQuery.timers;
 127
 128                 return this.each(function(){
 129                         for ( var i = 0; i < timers.length; i++ )
 130                                 if ( timers[i].elem == this )
 131                                         timers.splice(i--, 1);
 132                 });
 133         }
 134
 135 });
 136
 137 jQuery.extend({
 138
 139         speed: function(speed, easing, fn) {
 140                 var opt = speed && speed.constructor == Object ? speed : {
 141                         complete: fn || !fn && easing ||
 142                                 jQuery.isFunction( speed ) && speed,
 143                         duration: speed,
 144                         easing: fn && easing || easing && easing.constructor != Function && easing
 145                 };
 146
 147                 opt.duration = (opt.duration && opt.duration.constructor == Number ?
 148                         opt.duration :
 149                         { slow: 600, fast: 200 }[opt.duration]) || 400;
 150
 151                 // Queueing
 152                 opt.old = opt.complete;
 153                 opt.complete = function(){
 154                         jQuery.dequeue(this, "fx");
 155                         if ( jQuery.isFunction( opt.old ) )
 156                                 opt.old.apply( this );
 157                 };
 158
 159                 return opt;
 160         },
 161
 162         easing: {
 163                 linear: function( p, n, firstNum, diff ) {
 164                         return firstNum + diff * p;
 165                 },
 166                 swing: function( p, n, firstNum, diff ) {
 167                         return ((-Math.cos(p*Math.PI)/2) + 0.5) * diff + firstNum;
 168                 }
 169         },
 170
 171         queue: {},
 172
 173         dequeue: function(elem,type){
 174                 type = type || "fx";
 175
 176                 if ( elem.queue && elem.queue[type] ) {
 177                         // Remove self
 178                         elem.queue[type].shift();
 179
 180                         // Get next function
 181                         var f = elem.queue[type][0];
 182
 183                         if ( f ) f.apply( elem );
 184                 }
 185         },
 186
 187         timers: [],
 188
 189         fx: function( elem, options, prop ){
 190
 191                 var z = this, y = elem.style,
 192                         isprop = elem[prop] != null && y[prop] == null;
 193
 194                 // Simple function for setting a style value
 195                 z.a = function(){
 196                         if ( options.step )
 197                                 options.step.apply( elem, [ z.now ] );
 198
 199                         if ( prop == "opacity" )
 200                                 jQuery.attr(y, "opacity", z.now); // Let attr handle opacity
 201                         else {
 202                                 if ( isprop )
 203                                         elem[prop] = parseInt(z.now);
 204                                 else
 205                                         y[prop] = parseInt(z.now) + "px";
 206
 207                                 // Set display property to block for height/width animations
 208                                 if ( prop == "height" || prop == "width" )
 209                                         y.display = "block";
 210                         }
 211                 };
 212
 213                 // Figure out the maximum number to run to
 214                 z.max = function(){
 215                         return parseFloat( jQuery.css(elem,prop) );
 216                 };
 217
 218                 // Get the current size
 219                 z.cur = function(){
 220                         if ( isprop ) return elem[prop];
 221                         var r = parseFloat( jQuery.curCSS(elem, prop) );
 222                         return r && r > -10000 ? r : z.max();
 223                 };
 224
 225                 // Start an animation from one number to another
 226                 z.custom = function(from,to){
 227                         z.startTime = (new Date()).getTime();
 228                         z.now = from;
 229                         z.a();
 230
 231                         function t(){
 232                                 return z.step(from, to);
 233                         }
 234
 235                         t.elem = elem;
 236
 237                         jQuery.timers.push(t);
 238
 239                         if ( jQuery.timers.length == 1 ) {
 240                                 var timer = setInterval(function(){
 241                                         var timers = jQuery.timers;
 242
 243                                         for ( var i = 0; i < timers.length; i++ )
 244                                                 if ( !timers[i]() )
 245                                                         timers.splice(i--, 1);
 246
 247                                         if ( !timers.length )
 248                                                 clearInterval( timer );
 249                                 }, 13);
 250                         }
 251                 };
 252
 253                 // Simple 'show' function
 254                 z.show = function(){
 255                         if ( !elem.orig ) elem.orig = {};
 256
 257                         // Remember where we started, so that we can go back to it later
 258                         elem.orig[prop] = jQuery.attr( elem.style, prop );
 259
 260                         options.show = true;
 261
 262                         // Begin the animation
 263                         z.custom(0, this.cur());
 264
 265                         // Make sure that we start at a small width/height to avoid any
 266                         // flash of content
 267                         if ( prop != "opacity" )
 268                                 y[prop] = "1px";
 269
 270                         // Start by showing the element
 271                         jQuery(elem).show();
 272                 };
 273
 274                 // Simple 'hide' function
 275                 z.hide = function(){
 276                         if ( !elem.orig ) elem.orig = {};
 277
 278                         // Remember where we started, so that we can go back to it later
 279                         elem.orig[prop] = jQuery.attr( elem.style, prop );
 280
 281                         options.hide = true;
 282
 283                         // Begin the animation
 284                         z.custom(this.cur(), 0);
 285                 };
 286
 287                 // Each step of an animation
 288                 z.step = function(firstNum, lastNum){
 289                         var t = (new Date()).getTime();
 290
 291                         if (t > options.duration + z.startTime) {
 292                                 z.now = lastNum;
 293                                 z.a();
 294
 295                                 if (elem.curAnim) elem.curAnim[ prop ] = true;
 296
 297                                 var done = true;
 298                                 for ( var i in elem.curAnim )
 299                                         if ( elem.curAnim[i] !== true )
 300                                                 done = false;
 301
 302                                 if ( done ) {
 303                                         if ( options.display != null ) {
 304                                                 // Reset the overflow
 305                                                 y.overflow = options.overflow;
 306
 307                                                 // Reset the display
 308                                                 y.display = options.display;
 309                                                 if ( jQuery.css(elem, "display") == "none" )
 310                                                         y.display = "block";
 311                                         }
 312
 313                                         // Hide the element if the "hide" operation was done
 314                                         if ( options.hide )
 315                                                 y.display = "none";
 316
 317                                         // Reset the properties, if the item has been hidden or shown
 318                                         if ( options.hide || options.show )
 319                                                 for ( var p in elem.curAnim )
 320                                                         jQuery.attr(y, p, elem.orig[p]);
 321                                 }
 322
 323                                 // If a callback was provided, execute it
 324                                 if ( done && jQuery.isFunction( options.complete ) )
 325                                         // Execute the complete function
 326                                         options.complete.apply( elem );
 327
 328                                 return false;
 329                         } else {
 330                                 var n = t - this.startTime;
 331                                 // Figure out where in the animation we are and set the number
 332                                 var p = n / options.duration;
 333
 334                                 // Perform the easing function, defaults to swing
 335                                 z.now = jQuery.easing[options.easing || (jQuery.easing.swing ? "swing" : "linear")](p, n, firstNum, (lastNum-firstNum), options.duration);
 336
 337                                 // Perform the next step of the animation
 338                                 z.a();
 339                         }
 340
 341                         return true;
 342                 };
 343
 344         }
 345 });