1 // script.aculo.us effects.js v1.8.1, Thu Jan 03 22:07:12 -0500 2008

     2 

     3 // Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)

     4 // Contributors:

     5 //  Justin Palmer (http://encytemedia.com/)

     6 //  Mark Pilgrim (http://diveintomark.org/)

     7 //  Martin Bialasinki

     8 // 

     9 // script.aculo.us is freely distributable under the terms of an MIT-style license.

    10 // For details, see the script.aculo.us web site: http://script.aculo.us/ 

    11 

    12 // converts rgb() and #xxx to #xxxxxx format,  

    13 // returns self (or first argument) if not convertable  

    14 String.prototype.parseColor = function() {  

    15   var color = '#';

    16   if (this.slice(0,4) == 'rgb(') {  

    17     var cols = this.slice(4,this.length-1).split(',');  

    18     var i=0; do { color += parseInt(cols[i]).toColorPart() } while (++i<3);  

    19   } else {  

    20     if (this.slice(0,1) == '#') {  

    21       if (this.length==4) for(var i=1;i<4;i++) color += (this.charAt(i) + this.charAt(i)).toLowerCase();  

    22       if (this.length==7) color = this.toLowerCase();  

    23     }  

    24   }  

    25   return (color.length==7 ? color : (arguments[0] || this));  

    26 };

    27 

    28 /*--------------------------------------------------------------------------*/

    29 

    30 Element.collectTextNodes = function(element) {  

    31   return $A($(element).childNodes).collect( function(node) {

    32     return (node.nodeType==3 ? node.nodeValue : 

    33       (node.hasChildNodes() ? Element.collectTextNodes(node) : ''));

    34   }).flatten().join('');

    35 };

    36 

    37 Element.collectTextNodesIgnoreClass = function(element, className) {  

    38   return $A($(element).childNodes).collect( function(node) {

    39     return (node.nodeType==3 ? node.nodeValue : 

    40       ((node.hasChildNodes() && !Element.hasClassName(node,className)) ? 

    41         Element.collectTextNodesIgnoreClass(node, className) : ''));

    42   }).flatten().join('');

    43 };

    44 

    45 Element.setContentZoom = function(element, percent) {

    46   element = $(element);  

    47   element.setStyle({fontSize: (percent/100) + 'em'});   

    48   if (Prototype.Browser.WebKit) window.scrollBy(0,0);

    49   return element;

    50 };

    51 

    52 Element.getInlineOpacity = function(element){

    53   return $(element).style.opacity || '';

    54 };

    55 

    56 Element.forceRerendering = function(element) {

    57   try {

    58     element = $(element);

    59     var n = document.createTextNode(' ');

    60     element.appendChild(n);

    61     element.removeChild(n);

    62   } catch(e) { }

    63 };

    64 

    65 /*--------------------------------------------------------------------------*/

    66 

    67 var Effect = {

    68   _elementDoesNotExistError: {

    69     name: 'ElementDoesNotExistError',

    70     message: 'The specified DOM element does not exist, but is required for this effect to operate'

    71   },

    72   Transitions: {

    73     linear: Prototype.K,

    74     sinoidal: function(pos) {

    75       return (-Math.cos(pos*Math.PI)/2) + 0.5;

    76     },

    77     reverse: function(pos) {

    78       return 1-pos;

    79     },

    80     flicker: function(pos) {

    81       var pos = ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4;

    82       return pos > 1 ? 1 : pos;

    83     },

    84     wobble: function(pos) {

    85       return (-Math.cos(pos*Math.PI*(9*pos))/2) + 0.5;

    86     },

    87     pulse: function(pos, pulses) { 

    88       pulses = pulses || 5; 

    89       return (

    90         ((pos % (1/pulses)) * pulses).round() == 0 ? 

    91               ((pos * pulses * 2) - (pos * pulses * 2).floor()) : 

    92           1 - ((pos * pulses * 2) - (pos * pulses * 2).floor())

    93         );

    94     },

    95     spring: function(pos) { 

    96       return 1 - (Math.cos(pos * 4.5 * Math.PI) * Math.exp(-pos * 6)); 

    97     },

    98     none: function(pos) {

    99       return 0;

   100     },

   101     full: function(pos) {

   102       return 1;

   103     }

   104   },

   105   DefaultOptions: {

   106     duration:   1.0,   // seconds

   107     fps:        100,   // 100= assume 66fps max.

   108     sync:       false, // true for combining

   109     from:       0.0,

   110     to:         1.0,

   111     delay:      0.0,

   112     queue:      'parallel'

   113   },

   114   tagifyText: function(element) {

   115     var tagifyStyle = 'position:relative';

   116     if (Prototype.Browser.IE) tagifyStyle += ';zoom:1';

   117     

   118     element = $(element);

   119     $A(element.childNodes).each( function(child) {

   120       if (child.nodeType==3) {

   121         child.nodeValue.toArray().each( function(character) {

   122           element.insertBefore(

   123             new Element('span', {style: tagifyStyle}).update(

   124               character == ' ' ? String.fromCharCode(160) : character), 

   125               child);

   126         });

   127         Element.remove(child);

   128       }

   129     });

   130   },

   131   multiple: function(element, effect) {

   132     var elements;

   133     if (((typeof element == 'object') || 

   134         Object.isFunction(element)) && 

   135        (element.length))

   136       elements = element;

   137     else

   138       elements = $(element).childNodes;

   139       

   140     var options = Object.extend({

   141       speed: 0.1,

   142       delay: 0.0

   143     }, arguments[2] || { });

   144     var masterDelay = options.delay;

   145 

   146     $A(elements).each( function(element, index) {

   147       new effect(element, Object.extend(options, { delay: index * options.speed + masterDelay }));

   148     });

   149   },

   150   PAIRS: {

   151     'slide':  ['SlideDown','SlideUp'],

   152     'blind':  ['BlindDown','BlindUp'],

   153     'appear': ['Appear','Fade']

   154   },

   155   toggle: function(element, effect) {

   156     element = $(element);

   157     effect = (effect || 'appear').toLowerCase();

   158     var options = Object.extend({

   159       queue: { position:'end', scope:(element.id || 'global'), limit: 1 }

   160     }, arguments[2] || { });

   161     Effect[element.visible() ? 

   162       Effect.PAIRS[effect][1] : Effect.PAIRS[effect][0]](element, options);

   163   }

   164 };

   165 

   166 Effect.DefaultOptions.transition = Effect.Transitions.sinoidal;

   167 

   168 /* ------------- core effects ------------- */

   169 

   170 Effect.ScopedQueue = Class.create(Enumerable, {

   171   initialize: function() {

   172     this.effects  = [];

   173     this.interval = null;    

   174   },

   175   _each: function(iterator) {

   176     this.effects._each(iterator);

   177   },

   178   add: function(effect) {

   179     var timestamp = new Date().getTime();

   180     

   181     var position = Object.isString(effect.options.queue) ? 

   182       effect.options.queue : effect.options.queue.position;

   183     

   184     switch(position) {

   185       case 'front':

   186         // move unstarted effects after this effect  

   187         this.effects.findAll(function(e){ return e.state=='idle' }).each( function(e) {

   188             e.startOn  += effect.finishOn;

   189             e.finishOn += effect.finishOn;

   190           });

   191         break;

   192       case 'with-last':

   193         timestamp = this.effects.pluck('startOn').max() || timestamp;

   194         break;

   195       case 'end':

   196         // start effect after last queued effect has finished

   197         timestamp = this.effects.pluck('finishOn').max() || timestamp;

   198         break;

   199     }

   200     

   201     effect.startOn  += timestamp;

   202     effect.finishOn += timestamp;

   203 

   204     if (!effect.options.queue.limit || (this.effects.length < effect.options.queue.limit))

   205       this.effects.push(effect);

   206     

   207     if (!this.interval)

   208       this.interval = setInterval(this.loop.bind(this), 15);

   209   },

   210   remove: function(effect) {

   211     this.effects = this.effects.reject(function(e) { return e==effect });

   212     if (this.effects.length == 0) {

   213       clearInterval(this.interval);

   214       this.interval = null;

   215     }

   216   },

   217   loop: function() {

   218     var timePos = new Date().getTime();

   219     for(var i=0, len=this.effects.length;i<len;i++) 

   220       this.effects[i] && this.effects[i].loop(timePos);

   221   }

   222 });

   223 

   224 Effect.Queues = {

   225   instances: $H(),

   226   get: function(queueName) {

   227     if (!Object.isString(queueName)) return queueName;

   228     

   229     return this.instances.get(queueName) ||

   230       this.instances.set(queueName, new Effect.ScopedQueue());

   231   }

   232 };

   233 Effect.Queue = Effect.Queues.get('global');

   234 

   235 Effect.Base = Class.create({

   236   position: null,

   237   start: function(options) {

   238     function codeForEvent(options,eventName){

   239       return (

   240         (options[eventName+'Internal'] ? 'this.options.'+eventName+'Internal(this);' : '') +

   241         (options[eventName] ? 'this.options.'+eventName+'(this);' : '')

   242       );

   243     }

   244     if (options && options.transition === false) options.transition = Effect.Transitions.linear;

   245     this.options      = Object.extend(Object.extend({ },Effect.DefaultOptions), options || { });

   246     this.currentFrame = 0;

   247     this.state        = 'idle';

   248     this.startOn      = this.options.delay*1000;

   249     this.finishOn     = this.startOn+(this.options.duration*1000);

   250     this.fromToDelta  = this.options.to-this.options.from;

   251     this.totalTime    = this.finishOn-this.startOn;

   252     this.totalFrames  = this.options.fps*this.options.duration;

   253     

   254     eval('this.render = function(pos){ '+

   255       'if (this.state=="idle"){this.state="running";'+

   256       codeForEvent(this.options,'beforeSetup')+

   257       (this.setup ? 'this.setup();':'')+ 

   258       codeForEvent(this.options,'afterSetup')+

   259       '};if (this.state=="running"){'+

   260       'pos=this.options.transition(pos)*'+this.fromToDelta+'+'+this.options.from+';'+

   261       'this.position=pos;'+

   262       codeForEvent(this.options,'beforeUpdate')+

   263       (this.update ? 'this.update(pos);':'')+

   264       codeForEvent(this.options,'afterUpdate')+

   265       '}}');

   266     

   267     this.event('beforeStart');

   268     if (!this.options.sync)

   269       Effect.Queues.get(Object.isString(this.options.queue) ? 

   270         'global' : this.options.queue.scope).add(this);

   271   },

   272   loop: function(timePos) {

   273     if (timePos >= this.startOn) {

   274       if (timePos >= this.finishOn) {

   275         this.render(1.0);

   276         this.cancel();

   277         this.event('beforeFinish');

   278         if (this.finish) this.finish(); 

   279         this.event('afterFinish');

   280         return;  

   281       }

   282       var pos   = (timePos - this.startOn) / this.totalTime,

   283           frame = (pos * this.totalFrames).round();

   284       if (frame > this.currentFrame) {

   285         this.render(pos);

   286         this.currentFrame = frame;

   287       }

   288     }

   289   },

   290   cancel: function() {

   291     if (!this.options.sync)

   292       Effect.Queues.get(Object.isString(this.options.queue) ? 

   293         'global' : this.options.queue.scope).remove(this);

   294     this.state = 'finished';

   295   },

   296   event: function(eventName) {

   297     if (this.options[eventName + 'Internal']) this.options[eventName + 'Internal'](this);

   298     if (this.options[eventName]) this.options[eventName](this);

   299   },

   300   inspect: function() {

   301     var data = $H();

   302     for(property in this)

   303       if (!Object.isFunction(this[property])) data.set(property, this[property]);

   304     return '#<Effect:' + data.inspect() + ',options:' + $H(this.options).inspect() + '>';

   305   }

   306 });

   307 

   308 Effect.Parallel = Class.create(Effect.Base, {

   309   initialize: function(effects) {

   310     this.effects = effects || [];

   311     this.start(arguments[1]);

   312   },

   313   update: function(position) {

   314     this.effects.invoke('render', position);

   315   },

   316   finish: function(position) {

   317     this.effects.each( function(effect) {

   318       effect.render(1.0);

   319       effect.cancel();

   320       effect.event('beforeFinish');

   321       if (effect.finish) effect.finish(position);

   322       effect.event('afterFinish');

   323     });

   324   }

   325 });

   326 

   327 Effect.Tween = Class.create(Effect.Base, {

   328   initialize: function(object, from, to) {

   329     object = Object.isString(object) ? $(object) : object;

   330     var args = $A(arguments), method = args.last(), 

   331       options = args.length == 5 ? args[3] : null;

   332     this.method = Object.isFunction(method) ? method.bind(object) :

   333       Object.isFunction(object[method]) ? object[method].bind(object) : 

   334       function(value) { object[method] = value };

   335     this.start(Object.extend({ from: from, to: to }, options || { }));

   336   },

   337   update: function(position) {

   338     this.method(position);

   339   }

   340 });

   341 

   342 Effect.Event = Class.create(Effect.Base, {

   343   initialize: function() {

   344     this.start(Object.extend({ duration: 0 }, arguments[0] || { }));

   345   },

   346   update: Prototype.emptyFunction

   347 });

   348 

   349 Effect.Opacity = Class.create(Effect.Base, {

   350   initialize: function(element) {

   351     this.element = $(element);

   352     if (!this.element) throw(Effect._elementDoesNotExistError);

   353     // make this work on IE on elements without 'layout'

   354     if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))

   355       this.element.setStyle({zoom: 1});

   356     var options = Object.extend({

   357       from: this.element.getOpacity() || 0.0,

   358       to:   1.0

   359     }, arguments[1] || { });

   360     this.start(options);

   361   },

   362   update: function(position) {

   363     this.element.setOpacity(position);

   364   }

   365 });

   366 

   367 Effect.Move = Class.create(Effect.Base, {

   368   initialize: function(element) {

   369     this.element = $(element);

   370     if (!this.element) throw(Effect._elementDoesNotExistError);

   371     var options = Object.extend({

   372       x:    0,

   373       y:    0,

   374       mode: 'relative'

   375     }, arguments[1] || { });

   376     this.start(options);

   377   },

   378   setup: function() {

   379     this.element.makePositioned();

   380     this.originalLeft = parseFloat(this.element.getStyle('left') || '0');

   381     this.originalTop  = parseFloat(this.element.getStyle('top')  || '0');

   382     if (this.options.mode == 'absolute') {

   383       this.options.x = this.options.x - this.originalLeft;

   384       this.options.y = this.options.y - this.originalTop;

   385     }

   386   },

   387   update: function(position) {

   388     this.element.setStyle({

   389       left: (this.options.x  * position + this.originalLeft).round() + 'px',

   390       top:  (this.options.y  * position + this.originalTop).round()  + 'px'

   391     });

   392   }

   393 });

   394 

   395 // for backwards compatibility

   396 Effect.MoveBy = function(element, toTop, toLeft) {

   397   return new Effect.Move(element, 

   398     Object.extend({ x: toLeft, y: toTop }, arguments[3] || { }));

   399 };

   400 

   401 Effect.Scale = Class.create(Effect.Base, {

   402   initialize: function(element, percent) {

   403     this.element = $(element);

   404     if (!this.element) throw(Effect._elementDoesNotExistError);

   405     var options = Object.extend({

   406       scaleX: true,

   407       scaleY: true,

   408       scaleContent: true,

   409       scaleFromCenter: false,

   410       scaleMode: 'box',        // 'box' or 'contents' or { } with provided values

   411       scaleFrom: 100.0,

   412       scaleTo:   percent

   413     }, arguments[2] || { });

   414     this.start(options);

   415   },

   416   setup: function() {

   417     this.restoreAfterFinish = this.options.restoreAfterFinish || false;

   418     this.elementPositioning = this.element.getStyle('position');

   419     

   420     this.originalStyle = { };

   421     ['top','left','width','height','fontSize'].each( function(k) {

   422       this.originalStyle[k] = this.element.style[k];

   423     }.bind(this));

   424       

   425     this.originalTop  = this.element.offsetTop;

   426     this.originalLeft = this.element.offsetLeft;

   427     

   428     var fontSize = this.element.getStyle('font-size') || '100%';

   429     ['em','px','%','pt'].each( function(fontSizeType) {

   430       if (fontSize.indexOf(fontSizeType)>0) {

   431         this.fontSize     = parseFloat(fontSize);

   432         this.fontSizeType = fontSizeType;

   433       }

   434     }.bind(this));

   435     

   436     this.factor = (this.options.scaleTo - this.options.scaleFrom)/100;

   437     

   438     this.dims = null;

   439     if (this.options.scaleMode=='box')

   440       this.dims = [this.element.offsetHeight, this.element.offsetWidth];

   441     if (/^content/.test(this.options.scaleMode))

   442       this.dims = [this.element.scrollHeight, this.element.scrollWidth];

   443     if (!this.dims)

   444       this.dims = [this.options.scaleMode.originalHeight,

   445                    this.options.scaleMode.originalWidth];

   446   },

   447   update: function(position) {

   448     var currentScale = (this.options.scaleFrom/100.0) + (this.factor * position);

   449     if (this.options.scaleContent && this.fontSize)

   450       this.element.setStyle({fontSize: this.fontSize * currentScale + this.fontSizeType });

   451     this.setDimensions(this.dims[0] * currentScale, this.dims[1] * currentScale);

   452   },

   453   finish: function(position) {

   454     if (this.restoreAfterFinish) this.element.setStyle(this.originalStyle);

   455   },

   456   setDimensions: function(height, width) {

   457     var d = { };

   458     if (this.options.scaleX) d.width = width.round() + 'px';

   459     if (this.options.scaleY) d.height = height.round() + 'px';

   460     if (this.options.scaleFromCenter) {

   461       var topd  = (height - this.dims[0])/2;

   462       var leftd = (width  - this.dims[1])/2;

   463       if (this.elementPositioning == 'absolute') {

   464         if (this.options.scaleY) d.top = this.originalTop-topd + 'px';

   465         if (this.options.scaleX) d.left = this.originalLeft-leftd + 'px';

   466       } else {

   467         if (this.options.scaleY) d.top = -topd + 'px';

   468         if (this.options.scaleX) d.left = -leftd + 'px';

   469       }

   470     }

   471     this.element.setStyle(d);

   472   }

   473 });

   474 

   475 Effect.Highlight = Class.create(Effect.Base, {

   476   initialize: function(element) {

   477     this.element = $(element);

   478     if (!this.element) throw(Effect._elementDoesNotExistError);

   479     var options = Object.extend({ startcolor: '#ffff99' }, arguments[1] || { });

   480     this.start(options);

   481   },

   482   setup: function() {

   483     // Prevent executing on elements not in the layout flow

   484     if (this.element.getStyle('display')=='none') { this.cancel(); return; }

   485     // Disable background image during the effect

   486     this.oldStyle = { };

   487     if (!this.options.keepBackgroundImage) {

   488       this.oldStyle.backgroundImage = this.element.getStyle('background-image');

   489       this.element.setStyle({backgroundImage: 'none'});

   490     }

   491     if (!this.options.endcolor)

   492       this.options.endcolor = this.element.getStyle('background-color').parseColor('#ffffff');

   493     if (!this.options.restorecolor)

   494       this.options.restorecolor = this.element.getStyle('background-color');

   495     // init color calculations

   496     this._base  = $R(0,2).map(function(i){ return parseInt(this.options.startcolor.slice(i*2+1,i*2+3),16) }.bind(this));

   497     this._delta = $R(0,2).map(function(i){ return parseInt(this.options.endcolor.slice(i*2+1,i*2+3),16)-this._base[i] }.bind(this));

   498   },

   499   update: function(position) {

   500     this.element.setStyle({backgroundColor: $R(0,2).inject('#',function(m,v,i){

   501       return m+((this._base[i]+(this._delta[i]*position)).round().toColorPart()); }.bind(this)) });

   502   },

   503   finish: function() {

   504     this.element.setStyle(Object.extend(this.oldStyle, {

   505       backgroundColor: this.options.restorecolor

   506     }));

   507   }

   508 });

   509 

   510 Effect.ScrollTo = function(element) {

   511   var options = arguments[1] || { },

   512     scrollOffsets = document.viewport.getScrollOffsets(),

   513     elementOffsets = $(element).cumulativeOffset(),

   514     max = (window.height || document.body.scrollHeight) - document.viewport.getHeight();  

   515 

   516   if (options.offset) elementOffsets[1] += options.offset;

   517 

   518   return new Effect.Tween(null,

   519     scrollOffsets.top,

   520     elementOffsets[1] > max ? max : elementOffsets[1],

   521     options,

   522     function(p){ scrollTo(scrollOffsets.left, p.round()) }

   523   );

   524 };

   525 

   526 /* ------------- combination effects ------------- */

   527 

   528 Effect.Fade = function(element) {

   529   element = $(element);

   530   var oldOpacity = element.getInlineOpacity();

   531   var options = Object.extend({

   532     from: element.getOpacity() || 1.0,

   533     to:   0.0,

   534     afterFinishInternal: function(effect) { 

   535       if (effect.options.to!=0) return;

   536       effect.element.hide().setStyle({opacity: oldOpacity}); 

   537     }

   538   }, arguments[1] || { });

   539   return new Effect.Opacity(element,options);

   540 };

   541 

   542 Effect.Appear = function(element) {

   543   element = $(element);

   544   var options = Object.extend({

   545   from: (element.getStyle('display') == 'none' ? 0.0 : element.getOpacity() || 0.0),

   546   to:   1.0,

   547   // force Safari to render floated elements properly

   548   afterFinishInternal: function(effect) {

   549     effect.element.forceRerendering();

   550   },

   551   beforeSetup: function(effect) {

   552     effect.element.setOpacity(effect.options.from).show(); 

   553   }}, arguments[1] || { });

   554   return new Effect.Opacity(element,options);

   555 };

   556 

   557 Effect.Puff = function(element) {

   558   element = $(element);

   559   var oldStyle = { 

   560     opacity: element.getInlineOpacity(), 

   561     position: element.getStyle('position'),

   562     top:  element.style.top,

   563     left: element.style.left,

   564     width: element.style.width,

   565     height: element.style.height

   566   };

   567   return new Effect.Parallel(

   568    [ new Effect.Scale(element, 200, 

   569       { sync: true, scaleFromCenter: true, scaleContent: true, restoreAfterFinish: true }), 

   570      new Effect.Opacity(element, { sync: true, to: 0.0 } ) ], 

   571      Object.extend({ duration: 1.0, 

   572       beforeSetupInternal: function(effect) {

   573         Position.absolutize(effect.effects[0].element)

   574       },

   575       afterFinishInternal: function(effect) {

   576          effect.effects[0].element.hide().setStyle(oldStyle); }

   577      }, arguments[1] || { })

   578    );

   579 };

   580 

   581 Effect.BlindUp = function(element) {

   582   element = $(element);

   583   element.makeClipping();

   584   return new Effect.Scale(element, 0,

   585     Object.extend({ scaleContent: false, 

   586       scaleX: false, 

   587       restoreAfterFinish: true,

   588       afterFinishInternal: function(effect) {

   589         effect.element.hide().undoClipping();

   590       } 

   591     }, arguments[1] || { })

   592   );

   593 };

   594 

   595 Effect.BlindDown = function(element) {

   596   element = $(element);

   597   var elementDimensions = element.getDimensions();

   598   return new Effect.Scale(element, 100, Object.extend({ 

   599     scaleContent: false, 

   600     scaleX: false,

   601     scaleFrom: 0,

   602     scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},

   603     restoreAfterFinish: true,

   604     afterSetup: function(effect) {

   605       effect.element.makeClipping().setStyle({height: '0px'}).show(); 

   606     },  

   607     afterFinishInternal: function(effect) {

   608       effect.element.undoClipping();

   609     }

   610   }, arguments[1] || { }));

   611 };

   612 

   613 Effect.SwitchOff = function(element) {

   614   element = $(element);

   615   var oldOpacity = element.getInlineOpacity();

   616   return new Effect.Appear(element, Object.extend({

   617     duration: 0.4,

   618     from: 0,

   619     transition: Effect.Transitions.flicker,

   620     afterFinishInternal: function(effect) {

   621       new Effect.Scale(effect.element, 1, { 

   622         duration: 0.3, scaleFromCenter: true,

   623         scaleX: false, scaleContent: false, restoreAfterFinish: true,

   624         beforeSetup: function(effect) { 

   625           effect.element.makePositioned().makeClipping();

   626         },

   627         afterFinishInternal: function(effect) {

   628           effect.element.hide().undoClipping().undoPositioned().setStyle({opacity: oldOpacity});

   629         }

   630       })

   631     }

   632   }, arguments[1] || { }));

   633 };

   634 

   635 Effect.DropOut = function(element) {

   636   element = $(element);

   637   var oldStyle = {

   638     top: element.getStyle('top'),

   639     left: element.getStyle('left'),

   640     opacity: element.getInlineOpacity() };

   641   return new Effect.Parallel(

   642     [ new Effect.Move(element, {x: 0, y: 100, sync: true }), 

   643       new Effect.Opacity(element, { sync: true, to: 0.0 }) ],

   644     Object.extend(

   645       { duration: 0.5,

   646         beforeSetup: function(effect) {

   647           effect.effects[0].element.makePositioned(); 

   648         },

   649         afterFinishInternal: function(effect) {

   650           effect.effects[0].element.hide().undoPositioned().setStyle(oldStyle);

   651         } 

   652       }, arguments[1] || { }));

   653 };

   654 

   655 Effect.Shake = function(element) {

   656   element = $(element);

   657   var options = Object.extend({

   658     distance: 20,

   659     duration: 0.5

   660   }, arguments[1] || {});

   661   var distance = parseFloat(options.distance);

   662   var split = parseFloat(options.duration) / 10.0;

   663   var oldStyle = {

   664     top: element.getStyle('top'),

   665     left: element.getStyle('left') };

   666     return new Effect.Move(element,

   667       { x:  distance, y: 0, duration: split, afterFinishInternal: function(effect) {

   668     new Effect.Move(effect.element,

   669       { x: -distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {

   670     new Effect.Move(effect.element,

   671       { x:  distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {

   672     new Effect.Move(effect.element,

   673       { x: -distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {

   674     new Effect.Move(effect.element,

   675       { x:  distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {

   676     new Effect.Move(effect.element,

   677       { x: -distance, y: 0, duration: split, afterFinishInternal: function(effect) {

   678         effect.element.undoPositioned().setStyle(oldStyle);

   679   }}) }}) }}) }}) }}) }});

   680 };

   681 

   682 Effect.SlideDown = function(element) {

   683   element = $(element).cleanWhitespace();

   684   // SlideDown need to have the content of the element wrapped in a container element with fixed height!

   685   var oldInnerBottom = element.down().getStyle('bottom');

   686   var elementDimensions = element.getDimensions();

   687   return new Effect.Scale(element, 100, Object.extend({ 

   688     scaleContent: false, 

   689     scaleX: false, 

   690     scaleFrom: window.opera ? 0 : 1,

   691     scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},

   692     restoreAfterFinish: true,

   693     afterSetup: function(effect) {

   694       effect.element.makePositioned();

   695       effect.element.down().makePositioned();

   696       if (window.opera) effect.element.setStyle({top: ''});

   697       effect.element.makeClipping().setStyle({height: '0px'}).show(); 

   698     },

   699     afterUpdateInternal: function(effect) {

   700       effect.element.down().setStyle({bottom:

   701         (effect.dims[0] - effect.element.clientHeight) + 'px' }); 

   702     },

   703     afterFinishInternal: function(effect) {

   704       effect.element.undoClipping().undoPositioned();

   705       effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom}); }

   706     }, arguments[1] || { })

   707   );

   708 };

   709 

   710 Effect.SlideUp = function(element) {

   711   element = $(element).cleanWhitespace();

   712   var oldInnerBottom = element.down().getStyle('bottom');

   713   var elementDimensions = element.getDimensions();

   714   return new Effect.Scale(element, window.opera ? 0 : 1,

   715    Object.extend({ scaleContent: false, 

   716     scaleX: false, 

   717     scaleMode: 'box',

   718     scaleFrom: 100,

   719     scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},

   720     restoreAfterFinish: true,

   721     afterSetup: function(effect) {

   722       effect.element.makePositioned();

   723       effect.element.down().makePositioned();

   724       if (window.opera) effect.element.setStyle({top: ''});

   725       effect.element.makeClipping().show();

   726     },  

   727     afterUpdateInternal: function(effect) {

   728       effect.element.down().setStyle({bottom:

   729         (effect.dims[0] - effect.element.clientHeight) + 'px' });

   730     },

   731     afterFinishInternal: function(effect) {

   732       effect.element.hide().undoClipping().undoPositioned();

   733       effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom});

   734     }

   735    }, arguments[1] || { })

   736   );

   737 };

   738 

   739 // Bug in opera makes the TD containing this element expand for a instance after finish 

   740 Effect.Squish = function(element) {

   741   return new Effect.Scale(element, window.opera ? 1 : 0, { 

   742     restoreAfterFinish: true,

   743     beforeSetup: function(effect) {

   744       effect.element.makeClipping(); 

   745     },  

   746     afterFinishInternal: function(effect) {

   747       effect.element.hide().undoClipping(); 

   748     }

   749   });

   750 };

   751 

   752 Effect.Grow = function(element) {

   753   element = $(element);

   754   var options = Object.extend({

   755     direction: 'center',

   756     moveTransition: Effect.Transitions.sinoidal,

   757     scaleTransition: Effect.Transitions.sinoidal,

   758     opacityTransition: Effect.Transitions.full

   759   }, arguments[1] || { });

   760   var oldStyle = {

   761     top: element.style.top,

   762     left: element.style.left,

   763     height: element.style.height,

   764     width: element.style.width,

   765     opacity: element.getInlineOpacity() };

   766 

   767   var dims = element.getDimensions();    

   768   var initialMoveX, initialMoveY;

   769   var moveX, moveY;

   770   

   771   switch (options.direction) {

   772     case 'top-left':

   773       initialMoveX = initialMoveY = moveX = moveY = 0; 

   774       break;

   775     case 'top-right':

   776       initialMoveX = dims.width;

   777       initialMoveY = moveY = 0;

   778       moveX = -dims.width;

   779       break;

   780     case 'bottom-left':

   781       initialMoveX = moveX = 0;

   782       initialMoveY = dims.height;

   783       moveY = -dims.height;

   784       break;

   785     case 'bottom-right':

   786       initialMoveX = dims.width;

   787       initialMoveY = dims.height;

   788       moveX = -dims.width;

   789       moveY = -dims.height;

   790       break;

   791     case 'center':

   792       initialMoveX = dims.width / 2;

   793       initialMoveY = dims.height / 2;

   794       moveX = -dims.width / 2;

   795       moveY = -dims.height / 2;

   796       break;

   797   }

   798   

   799   return new Effect.Move(element, {

   800     x: initialMoveX,

   801     y: initialMoveY,

   802     duration: 0.01, 

   803     beforeSetup: function(effect) {

   804       effect.element.hide().makeClipping().makePositioned();

   805     },

   806     afterFinishInternal: function(effect) {

   807       new Effect.Parallel(

   808         [ new Effect.Opacity(effect.element, { sync: true, to: 1.0, from: 0.0, transition: options.opacityTransition }),

   809           new Effect.Move(effect.element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition }),

   810           new Effect.Scale(effect.element, 100, {

   811             scaleMode: { originalHeight: dims.height, originalWidth: dims.width }, 

   812             sync: true, scaleFrom: window.opera ? 1 : 0, transition: options.scaleTransition, restoreAfterFinish: true})

   813         ], Object.extend({

   814              beforeSetup: function(effect) {

   815                effect.effects[0].element.setStyle({height: '0px'}).show(); 

   816              },

   817              afterFinishInternal: function(effect) {

   818                effect.effects[0].element.undoClipping().undoPositioned().setStyle(oldStyle); 

   819              }

   820            }, options)

   821       )

   822     }

   823   });

   824 };

   825 

   826 Effect.Shrink = function(element) {

   827   element = $(element);

   828   var options = Object.extend({

   829     direction: 'center',

   830     moveTransition: Effect.Transitions.sinoidal,

   831     scaleTransition: Effect.Transitions.sinoidal,

   832     opacityTransition: Effect.Transitions.none

   833   }, arguments[1] || { });

   834   var oldStyle = {

   835     top: element.style.top,

   836     left: element.style.left,

   837     height: element.style.height,

   838     width: element.style.width,

   839     opacity: element.getInlineOpacity() };

   840 

   841   var dims = element.getDimensions();

   842   var moveX, moveY;

   843   

   844   switch (options.direction) {

   845     case 'top-left':

   846       moveX = moveY = 0;

   847       break;

   848     case 'top-right':

   849       moveX = dims.width;

   850       moveY = 0;

   851       break;

   852     case 'bottom-left':

   853       moveX = 0;

   854       moveY = dims.height;

   855       break;

   856     case 'bottom-right':

   857       moveX = dims.width;

   858       moveY = dims.height;

   859       break;

   860     case 'center':  

   861       moveX = dims.width / 2;

   862       moveY = dims.height / 2;

   863       break;

   864   }

   865   

   866   return new Effect.Parallel(

   867     [ new Effect.Opacity(element, { sync: true, to: 0.0, from: 1.0, transition: options.opacityTransition }),

   868       new Effect.Scale(element, window.opera ? 1 : 0, { sync: true, transition: options.scaleTransition, restoreAfterFinish: true}),

   869       new Effect.Move(element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition })

   870     ], Object.extend({            

   871          beforeStartInternal: function(effect) {

   872            effect.effects[0].element.makePositioned().makeClipping(); 

   873          },

   874          afterFinishInternal: function(effect) {

   875            effect.effects[0].element.hide().undoClipping().undoPositioned().setStyle(oldStyle); }

   876        }, options)

   877   );

   878 };

   879 

   880 Effect.Pulsate = function(element) {

   881   element = $(element);

   882   var options    = arguments[1] || { };

   883   var oldOpacity = element.getInlineOpacity();

   884   var transition = options.transition || Effect.Transitions.sinoidal;

   885   var reverser   = function(pos){ return transition(1-Effect.Transitions.pulse(pos, options.pulses)) };

   886   reverser.bind(transition);

   887   return new Effect.Opacity(element, 

   888     Object.extend(Object.extend({  duration: 2.0, from: 0,

   889       afterFinishInternal: function(effect) { effect.element.setStyle({opacity: oldOpacity}); }

   890     }, options), {transition: reverser}));

   891 };

   892 

   893 Effect.Fold = function(element) {

   894   element = $(element);

   895   var oldStyle = {

   896     top: element.style.top,

   897     left: element.style.left,

   898     width: element.style.width,

   899     height: element.style.height };

   900   element.makeClipping();

   901   return new Effect.Scale(element, 5, Object.extend({   

   902     scaleContent: false,

   903     scaleX: false,

   904     afterFinishInternal: function(effect) {

   905     new Effect.Scale(element, 1, { 

   906       scaleContent: false, 

   907       scaleY: false,

   908       afterFinishInternal: function(effect) {

   909         effect.element.hide().undoClipping().setStyle(oldStyle);

   910       } });

   911   }}, arguments[1] || { }));

   912 };

   913 

   914 Effect.Morph = Class.create(Effect.Base, {

   915   initialize: function(element) {

   916     this.element = $(element);

   917     if (!this.element) throw(Effect._elementDoesNotExistError);

   918     var options = Object.extend({

   919       style: { }

   920     }, arguments[1] || { });

   921     

   922     if (!Object.isString(options.style)) this.style = $H(options.style);

   923     else {

   924       if (options.style.include(':'))

   925         this.style = options.style.parseStyle();

   926       else {

   927         this.element.addClassName(options.style);

   928         this.style = $H(this.element.getStyles());

   929         this.element.removeClassName(options.style);

   930         var css = this.element.getStyles();

   931         this.style = this.style.reject(function(style) {

   932           return style.value == css[style.key];

   933         });

   934         options.afterFinishInternal = function(effect) {

   935           effect.element.addClassName(effect.options.style);

   936           effect.transforms.each(function(transform) {

   937             effect.element.style[transform.style] = '';

   938           });

   939         }

   940       }

   941     }

   942     this.start(options);

   943   },

   944   

   945   setup: function(){

   946     function parseColor(color){

   947       if (!color || ['rgba(0, 0, 0, 0)','transparent'].include(color)) color = '#ffffff';

   948       color = color.parseColor();

   949       return $R(0,2).map(function(i){

   950         return parseInt( color.slice(i*2+1,i*2+3), 16 ) 

   951       });

   952     }

   953     this.transforms = this.style.map(function(pair){

   954       var property = pair[0], value = pair[1], unit = null;

   955 

   956       if (value.parseColor('#zzzzzz') != '#zzzzzz') {

   957         value = value.parseColor();

   958         unit  = 'color';

   959       } else if (property == 'opacity') {

   960         value = parseFloat(value);

   961         if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))

   962           this.element.setStyle({zoom: 1});

   963       } else if (Element.CSS_LENGTH.test(value)) {

   964           var components = value.match(/^([\+\-]?[0-9\.]+)(.*)$/);

   965           value = parseFloat(components[1]);

   966           unit = (components.length == 3) ? components[2] : null;

   967       }

   968 

   969       var originalValue = this.element.getStyle(property);

   970       return { 

   971         style: property.camelize(), 

   972         originalValue: unit=='color' ? parseColor(originalValue) : parseFloat(originalValue || 0), 

   973         targetValue: unit=='color' ? parseColor(value) : value,

   974         unit: unit

   975       };

   976     }.bind(this)).reject(function(transform){

   977       return (

   978         (transform.originalValue == transform.targetValue) ||

   979         (

   980           transform.unit != 'color' &&

   981           (isNaN(transform.originalValue) || isNaN(transform.targetValue))

   982         )

   983       )

   984     });

   985   },

   986   update: function(position) {

   987     var style = { }, transform, i = this.transforms.length;

   988     while(i--)

   989       style[(transform = this.transforms[i]).style] = 

   990         transform.unit=='color' ? '#'+

   991           (Math.round(transform.originalValue[0]+

   992             (transform.targetValue[0]-transform.originalValue[0])*position)).toColorPart() +

   993           (Math.round(transform.originalValue[1]+

   994             (transform.targetValue[1]-transform.originalValue[1])*position)).toColorPart() +

   995           (Math.round(transform.originalValue[2]+

   996             (transform.targetValue[2]-transform.originalValue[2])*position)).toColorPart() :

   997         (transform.originalValue +

   998           (transform.targetValue - transform.originalValue) * position).toFixed(3) + 

   999             (transform.unit === null ? '' : transform.unit);

  1000     this.element.setStyle(style, true);

  1001   }

  1002 });

  1003 

  1004 Effect.Transform = Class.create({

  1005   initialize: function(tracks){

  1006     this.tracks  = [];

  1007     this.options = arguments[1] || { };

  1008     this.addTracks(tracks);

  1009   },

  1010   addTracks: function(tracks){

  1011     tracks.each(function(track){

  1012       track = $H(track);

  1013       var data = track.values().first();

  1014       this.tracks.push($H({

  1015         ids:     track.keys().first(),

  1016         effect:  Effect.Morph,

  1017         options: { style: data }

  1018       }));

  1019     }.bind(this));

  1020     return this;

  1021   },

  1022   play: function(){

  1023     return new Effect.Parallel(

  1024       this.tracks.map(function(track){

  1025         var ids = track.get('ids'), effect = track.get('effect'), options = track.get('options');

  1026         var elements = [$(ids) || $$(ids)].flatten();

  1027         return elements.map(function(e){ return new effect(e, Object.extend({ sync:true }, options)) });

  1028       }).flatten(),

  1029       this.options

  1030     );

  1031   }

  1032 });

  1033 

  1034 Element.CSS_PROPERTIES = $w(

  1035   'backgroundColor backgroundPosition borderBottomColor borderBottomStyle ' + 

  1036   'borderBottomWidth borderLeftColor borderLeftStyle borderLeftWidth ' +

  1037   'borderRightColor borderRightStyle borderRightWidth borderSpacing ' +

  1038   'borderTopColor borderTopStyle borderTopWidth bottom clip color ' +

  1039   'fontSize fontWeight height left letterSpacing lineHeight ' +

  1040   'marginBottom marginLeft marginRight marginTop markerOffset maxHeight '+

  1041   'maxWidth minHeight minWidth opacity outlineColor outlineOffset ' +

  1042   'outlineWidth paddingBottom paddingLeft paddingRight paddingTop ' +

  1043   'right textIndent top width wordSpacing zIndex');

  1044   

  1045 Element.CSS_LENGTH = /^(([\+\-]?[0-9\.]+)(em|ex|px|in|cm|mm|pt|pc|\%))|0$/;

  1046 

  1047 String.__parseStyleElement = document.createElement('div');

  1048 String.prototype.parseStyle = function(){

  1049   var style, styleRules = $H();

  1050   if (Prototype.Browser.WebKit)

  1051     style = new Element('div',{style:this}).style;

  1052   else {

  1053     String.__parseStyleElement.innerHTML = '<div style="' + this + '"></div>';

  1054     style = String.__parseStyleElement.childNodes[0].style;

  1055   }

  1056   

  1057   Element.CSS_PROPERTIES.each(function(property){

  1058     if (style[property]) styleRules.set(property, style[property]); 

  1059   });

  1060   

  1061   if (Prototype.Browser.IE && this.include('opacity'))

  1062     styleRules.set('opacity', this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1]);

  1063 

  1064   return styleRules;

  1065 };

  1066 

  1067 if (document.defaultView && document.defaultView.getComputedStyle) {

  1068   Element.getStyles = function(element) {

  1069     var css = document.defaultView.getComputedStyle($(element), null);

  1070     return Element.CSS_PROPERTIES.inject({ }, function(styles, property) {

  1071       styles[property] = css[property];

  1072       return styles;

  1073     });

  1074   };

  1075 } else {

  1076   Element.getStyles = function(element) {

  1077     element = $(element);

  1078     var css = element.currentStyle, styles;

  1079     styles = Element.CSS_PROPERTIES.inject({ }, function(results, property) {

  1080       results[property] = css[property];

  1081       return results;

  1082     });

  1083     if (!styles.opacity) styles.opacity = element.getOpacity();

  1084     return styles;

  1085   };

  1086 };

  1087 

  1088 Effect.Methods = {

  1089   morph: function(element, style) {

  1090     element = $(element);

  1091     new Effect.Morph(element, Object.extend({ style: style }, arguments[2] || { }));

  1092     return element;

  1093   },

  1094   visualEffect: function(element, effect, options) {

  1095     element = $(element)

  1096     var s = effect.dasherize().camelize(), klass = s.charAt(0).toUpperCase() + s.substring(1);

  1097     new Effect[klass](element, options);

  1098     return element;

  1099   },

  1100   highlight: function(element, options) {

  1101     element = $(element);

  1102     new Effect.Highlight(element, options);

  1103     return element;

  1104   }

  1105 };

  1106 

  1107 $w('fade appear grow shrink fold blindUp blindDown slideUp slideDown '+

  1108   'pulsate shake puff squish switchOff dropOut').each(

  1109   function(effect) { 

  1110     Effect.Methods[effect] = function(element, options){

  1111       element = $(element);

  1112       Effect[effect.charAt(0).toUpperCase() + effect.substring(1)](element, options);

  1113       return element;

  1114     }

  1115   }

  1116 );

  1117 

  1118 $w('getInlineOpacity forceRerendering setContentZoom collectTextNodes collectTextNodesIgnoreClass getStyles').each( 

  1119   function(f) { Effect.Methods[f] = Element[f]; }

  1120 );

  1121 

  1122 Element.addMethods(Effect.Methods);