src/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 || "";
  10                                 if ( jQuery.css(this,"display") == "none" ) {
  11                                         var elem = jQuery("<" + this.tagName + " />").appendTo("body");
  12                                         this.style.display = elem.css("display");
  13                                         elem.remove();
  14                                 }
  15                         }).end();
  16         },
  17
  18         hide: function(speed,callback){
  19                 return speed ?
  20                         this.animate({
  21                                 height: "hide", width: "hide", opacity: "hide"
  22                         }, speed, callback) :
  23
  24                         this.filter(":visible").each(function(){
  25                                 this.oldblock = this.oldblock || jQuery.css(this,"display");
  26                                 this.style.display = "none";
  27                         }).end();
  28         },
  29
  30         // Save the old toggle function
  31         _toggle: jQuery.fn.toggle,
  32
  33         toggle: function( fn, fn2 ){
  34                 return jQuery.isFunction(fn) && jQuery.isFunction(fn2) ?
  35                         this._toggle( fn, fn2 ) :
  36                         fn ?
  37                                 this.animate({
  38                                         height: "toggle", width: "toggle", opacity: "toggle"
  39                                 }, fn, fn2) :
  40                                 this.each(function(){
  41                                         jQuery(this)[ jQuery(this).is(":hidden") ? "show" : "hide" ]();
  42                                 });
  43         },
  44
  45         slideDown: function(speed,callback){
  46                 return this.animate({height: "show"}, speed, callback);
  47         },
  48
  49         slideUp: function(speed,callback){
  50                 return this.animate({height: "hide"}, speed, callback);
  51         },
  52
  53         slideToggle: function(speed, callback){
  54                 return this.animate({height: "toggle"}, speed, callback);
  55         },
  56
  57         fadeIn: function(speed, callback){
  58                 return this.animate({opacity: "show"}, speed, callback);
  59         },
  60
  61         fadeOut: function(speed, callback){
  62                 return this.animate({opacity: "hide"}, speed, callback);
  63         },
  64
  65         fadeTo: function(speed,to,callback){
  66                 return this.animate({opacity: to}, speed, callback);
  67         },
  68
  69         animate: function( prop, speed, easing, callback ) {
  70                 var optall = jQuery.speed(speed, easing, callback);
  71
  72                 return this[ optall.queue === false ? "each" : "queue" ](function(){
  73                         if ( this.nodeType != 1)
  74                                 return false;
  75
  76                         var opt = jQuery.extend({}, optall);
  77                         var hidden = jQuery(this).is(":hidden"), self = this;
  78
  79                         for ( var p in prop ) {
  80                                 if ( prop[p] == "hide" && hidden || prop[p] == "show" && !hidden )
  81                                         return jQuery.isFunction(opt.complete) && opt.complete.apply(this);
  82
  83                                 if ( p == "height" || p == "width" ) {
  84                                         // Store display property
  85                                         opt.display = jQuery.css(this, "display");
  86
  87                                         // Make sure that nothing sneaks out
  88                                         opt.overflow = this.style.overflow;
  89                                 }
  90                         }
  91
  92                         if ( opt.overflow != null )
  93                                 this.style.overflow = "hidden";
  94
  95                         opt.curAnim = jQuery.extend({}, prop);
  96
  97                         jQuery.each( prop, function(name, val){
  98                                 var e = new jQuery.fx( self, opt, name );
  99
 100                                 if ( /toggle|show|hide/.test(val) )
 101                                         e[ val == "toggle" ? hidden ? "show" : "hide" : val ]( prop );
 102                                 else {
 103                                         var parts = val.toString().match(/^([+-]=)?([\d+-.]+)(.*)$/),
 104                                                 start = e.cur(true) || 0;
 105
 106                                         if ( parts ) {
 107                                                 var end = parseFloat(parts[2]),
 108                                                         unit = parts[3] || "px";
 109
 110                                                 // We need to compute starting value
 111                                                 if ( unit != "px" ) {
 112                                                         self.style[ name ] = (end || 1) + unit;
 113                                                         start = ((end || 1) / e.cur(true)) * start;
 114                                                         self.style[ name ] = start + unit;
 115                                                 }
 116
 117                                                 // If a +=/-= token was provided, we're doing a relative animation
 118                                                 if ( parts[1] )
 119                                                         end = ((parts[1] == "-=" ? -1 : 1) * end) + start;
 120
 121                                                 e.custom( start, end, unit );
 122                                         } else
 123                                                 e.custom( start, val, "" );
 124                                 }
 125                         });
 126
 127                         // For JS strict compliance
 128                         return true;
 129                 });
 130         },
 131
 132         queue: function(type, fn){
 133                 if ( jQuery.isFunction(type) || ( type && type.constructor == Array )) {
 134                         fn = type;
 135                         type = "fx";
 136                 }
 137
 138                 if ( !type || (typeof type == "string" && !fn) )
 139                         return queue( this[0], type );
 140
 141                 return this.each(function(){
 142                         if ( this.nodeType != 1)
 143                                 return;
 144
 145                         if ( fn.constructor == Array )
 146                                 queue(this, type, fn);
 147                         else {
 148                                 queue(this, type).push( fn );
 149
 150                                 if ( queue(this, type).length == 1 )
 151                                         fn.apply(this);
 152                         }
 153                 });
 154         },
 155
 156         stop: function(clearQueue, gotoEnd){
 157                 var timers = jQuery.timers;
 158
 159                 if (clearQueue)
 160                         this.queue([]);
 161
 162                 this.each(function(){
 163                         // go in reverse order so anything added to the queue during the loop is ignored
 164                         for ( var i = timers.length - 1; i >= 0; i-- )
 165                                 if ( timers[i].elem == this ) {
 166                                         if (gotoEnd)
 167                                                 // force the next step to be the last
 168                                                 timers[i](true);
 169                                         timers.splice(i, 1);
 170                                 }
 171                 });
 172
 173                 // start the next in the queue if the last step wasn't forced
 174                 if (!gotoEnd)
 175                         this.dequeue();
 176
 177                 return this;
 178         }
 179
 180 });
 181
 182 var queue = function( elem, type, array ) {
 183         if ( !elem )
 184                 return;
 185
 186         type = type || "fx";
 187
 188         var q = jQuery.data( elem, type + "queue" );
 189
 190         if ( !q || array )
 191                 q = jQuery.data( elem, type + "queue",
 192                         array ? jQuery.makeArray(array) : [] );
 193
 194         return q;
 195 };
 196
 197 jQuery.fn.dequeue = function(type){
 198         type = type || "fx";
 199
 200         return this.each(function(){
 201                 var q = queue(this, type);
 202
 203                 q.shift();
 204
 205                 if ( q.length )
 206                         q[0].apply( this );
 207         });
 208 };
 209
 210 jQuery.extend({
 211
 212         speed: function(speed, easing, fn) {
 213                 var opt = speed && speed.constructor == Object ? speed : {
 214                         complete: fn || !fn && easing ||
 215                                 jQuery.isFunction( speed ) && speed,
 216                         duration: speed,
 217                         easing: fn && easing || easing && easing.constructor != Function && easing
 218                 };
 219
 220                 opt.duration = (opt.duration && opt.duration.constructor == Number ?
 221                         opt.duration :
 222                         { slow: 600, fast: 200 }[opt.duration]) || 400;
 223
 224                 // Queueing
 225                 opt.old = opt.complete;
 226                 opt.complete = function(){
 227                         if ( opt.queue !== false )
 228                                 jQuery(this).dequeue();
 229                         if ( jQuery.isFunction( opt.old ) )
 230                                 opt.old.apply( this );
 231                 };
 232
 233                 return opt;
 234         },
 235
 236         easing: {
 237                 linear: function( p, n, firstNum, diff ) {
 238                         return firstNum + diff * p;
 239                 },
 240                 swing: function( p, n, firstNum, diff ) {
 241                         return ((-Math.cos(p*Math.PI)/2) + 0.5) * diff + firstNum;
 242                 }
 243         },
 244
 245         timers: [],
 246         timerId: null,
 247
 248         fx: function( elem, options, prop ){
 249                 this.options = options;
 250                 this.elem = elem;
 251                 this.prop = prop;
 252
 253                 if ( !options.orig )
 254                         options.orig = {};
 255         }
 256
 257 });
 258
 259 jQuery.fx.prototype = {
 260
 261         // Simple function for setting a style value
 262         update: function(){
 263                 if ( this.options.step )
 264                         this.options.step.apply( this.elem, [ this.now, this ] );
 265
 266                 (jQuery.fx.step[this.prop] || jQuery.fx.step._default)( this );
 267
 268                 // Set display property to block for height/width animations
 269                 if ( this.prop == "height" || this.prop == "width" )
 270                         this.elem.style.display = "block";
 271         },
 272
 273         // Get the current size
 274         cur: function(force){
 275                 if ( this.elem[this.prop] != null && this.elem.style[this.prop] == null )
 276                         return this.elem[ this.prop ];
 277
 278                 var r = parseFloat(jQuery.css(this.elem, this.prop, force));
 279                 return r && r > -10000 ? r : parseFloat(jQuery.curCSS(this.elem, this.prop)) || 0;
 280         },
 281
 282         // Start an animation from one number to another
 283         custom: function(from, to, unit){
 284                 this.startTime = (new Date()).getTime();
 285                 this.start = from;
 286                 this.end = to;
 287                 this.unit = unit || this.unit || "px";
 288                 this.now = this.start;
 289                 this.pos = this.state = 0;
 290                 this.update();
 291
 292                 var self = this;
 293                 function t(gotoEnd){
 294                         return self.step(gotoEnd);
 295                 }
 296
 297                 t.elem = this.elem;
 298
 299                 jQuery.timers.push(t);
 300
 301                 if ( jQuery.timerId == null ) {
 302                         jQuery.timerId = setInterval(function(){
 303                                 var timers = jQuery.timers;
 304
 305                                 for ( var i = 0; i < timers.length; i++ )
 306                                         if ( !timers[i]() )
 307                                                 timers.splice(i--, 1);
 308
 309                                 if ( !timers.length ) {
 310                                         clearInterval( jQuery.timerId );
 311                                         jQuery.timerId = null;
 312                                 }
 313                         }, 13);
 314                 }
 315         },
 316
 317         // Simple 'show' function
 318         show: function(){
 319                 // Remember where we started, so that we can go back to it later
 320                 this.options.orig[this.prop] = jQuery.attr( this.elem.style, this.prop );
 321                 this.options.show = true;
 322
 323                 // Begin the animation
 324                 this.custom(0, this.cur());
 325
 326                 // Make sure that we start at a small width/height to avoid any
 327                 // flash of content
 328                 if ( this.prop == "width" || this.prop == "height" )
 329                         this.elem.style[this.prop] = "1px";
 330
 331                 // Start by showing the element
 332                 jQuery(this.elem).show();
 333         },
 334
 335         // Simple 'hide' function
 336         hide: function(){
 337                 // Remember where we started, so that we can go back to it later
 338                 this.options.orig[this.prop] = jQuery.attr( this.elem.style, this.prop );
 339                 this.options.hide = true;
 340
 341                 // Begin the animation
 342                 this.custom(this.cur(), 0);
 343         },
 344
 345         // Each step of an animation
 346         step: function(gotoEnd){
 347                 var t = (new Date()).getTime();
 348
 349                 if ( gotoEnd || t > this.options.duration + this.startTime ) {
 350                         this.now = this.end;
 351                         this.pos = this.state = 1;
 352                         this.update();
 353
 354                         this.options.curAnim[ this.prop ] = true;
 355
 356                         var done = true;
 357                         for ( var i in this.options.curAnim )
 358                                 if ( this.options.curAnim[i] !== true )
 359                                         done = false;
 360
 361                         if ( done ) {
 362                                 if ( this.options.display != null ) {
 363                                         // Reset the overflow
 364                                         this.elem.style.overflow = this.options.overflow;
 365
 366                                         // Reset the display
 367                                         this.elem.style.display = this.options.display;
 368                                         if ( jQuery.css(this.elem, "display") == "none" )
 369                                                 this.elem.style.display = "block";
 370                                 }
 371
 372                                 // Hide the element if the "hide" operation was done
 373                                 if ( this.options.hide )
 374                                         this.elem.style.display = "none";
 375
 376                                 // Reset the properties, if the item has been hidden or shown
 377                                 if ( this.options.hide || this.options.show )
 378                                         for ( var p in this.options.curAnim )
 379                                                 jQuery.attr(this.elem.style, p, this.options.orig[p]);
 380                         }
 381
 382                         // If a callback was provided, execute it
 383                         if ( done && jQuery.isFunction( this.options.complete ) )
 384                                 // Execute the complete function
 385                                 this.options.complete.apply( this.elem );
 386
 387                         return false;
 388                 } else {
 389                         var n = t - this.startTime;
 390                         this.state = n / this.options.duration;
 391
 392                         // Perform the easing function, defaults to swing
 393                         this.pos = jQuery.easing[this.options.easing || (jQuery.easing.swing ? "swing" : "linear")](this.state, n, 0, 1, this.options.duration);
 394                         this.now = this.start + ((this.end - this.start) * this.pos);
 395
 396                         // Perform the next step of the animation
 397                         this.update();
 398                 }
 399
 400                 return true;
 401         }
 402
 403 };
 404
 405 jQuery.fx.step = {
 406         scrollLeft: function(fx){
 407                 fx.elem.scrollLeft = fx.now;
 408         },
 409
 410         scrollTop: function(fx){
 411                 fx.elem.scrollTop = fx.now;
 412         },
 413
 414         opacity: function(fx){
 415                 jQuery.attr(fx.elem.style, "opacity", fx.now);
 416         },
 417
 418         _default: function(fx){
 419                 fx.elem.style[ fx.prop ] = fx.now + fx.unit;
 420         }
 421 };