1 // script.aculo.us effects.js v1.8.3, Thu Oct 08 11:23:33 +0200 2009

     2 

     3 // Copyright (c) 2005-2009 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) + .5;

    76     },

    77     reverse: function(pos) {

    78       return 1-pos;

    79     },

    80     flicker: function(pos) {

    81       var pos = ((-Math.cos(pos*Math.PI)/4) + .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) + .5;

    86     },

    87     pulse: function(pos, pulses) {

    88       return (-Math.cos((pos*((pulses||5)-.5)*2)*Math.PI)/2) + .5;

    89     },

    90     spring: function(pos) {

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

    92     },

    93     none: function(pos) {

    94       return 0;

    95     },

    96     full: function(pos) {

    97       return 1;

    98     }

    99   },

   100   DefaultOptions: {

   101     duration:   1.0,   // seconds

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

   103     sync:       false, // true for combining

   104     from:       0.0,

   105     to:         1.0,

   106     delay:      0.0,

   107     queue:      'parallel'

   108   },

   109   tagifyText: function(element) {

   110     var tagifyStyle = 'position:relative';

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

   112 

   113     element = $(element);

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

   115       if (child.nodeType==3) {

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

   117           element.insertBefore(

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

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

   120               child);

   121         });

   122         Element.remove(child);

   123       }

   124     });

   125   },

   126   multiple: function(element, effect) {

   127     var elements;

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

   129         Object.isFunction(element)) &&

   130        (element.length))

   131       elements = element;

   132     else

   133       elements = $(element).childNodes;

   134 

   135     var options = Object.extend({

   136       speed: 0.1,

   137       delay: 0.0

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

   139     var masterDelay = options.delay;

   140 

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

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

   143     });

   144   },

   145   PAIRS: {

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

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

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

   149   },

   150   toggle: function(element, effect, options) {

   151     element = $(element);

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

   153     

   154     return Effect[ Effect.PAIRS[ effect ][ element.visible() ? 1 : 0 ] ](element, Object.extend({

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

   156     }, options || {}));

   157   }

   158 };

   159 

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

   161 

   162 /* ------------- core effects ------------- */

   163 

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

   165   initialize: function() {

   166     this.effects  = [];

   167     this.interval = null;

   168   },

   169   _each: function(iterator) {

   170     this.effects._each(iterator);

   171   },

   172   add: function(effect) {

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

   174 

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

   176       effect.options.queue : effect.options.queue.position;

   177 

   178     switch(position) {

   179       case 'front':

   180         // move unstarted effects after this effect

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

   182             e.startOn  += effect.finishOn;

   183             e.finishOn += effect.finishOn;

   184           });

   185         break;

   186       case 'with-last':

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

   188         break;

   189       case 'end':

   190         // start effect after last queued effect has finished

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

   192         break;

   193     }

   194 

   195     effect.startOn  += timestamp;

   196     effect.finishOn += timestamp;

   197 

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

   199       this.effects.push(effect);

   200 

   201     if (!this.interval)

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

   203   },

   204   remove: function(effect) {

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

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

   207       clearInterval(this.interval);

   208       this.interval = null;

   209     }

   210   },

   211   loop: function() {

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

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

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

   215   }

   216 });

   217 

   218 Effect.Queues = {

   219   instances: $H(),

   220   get: function(queueName) {

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

   222 

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

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

   225   }

   226 };

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

   228 

   229 Effect.Base = Class.create({

   230   position: null,

   231   start: function(options) {

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

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

   234     this.currentFrame = 0;

   235     this.state        = 'idle';

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

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

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

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

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

   241 

   242     this.render = (function() {

   243       function dispatch(effect, eventName) {

   244         if (effect.options[eventName + 'Internal'])

   245           effect.options[eventName + 'Internal'](effect);

   246         if (effect.options[eventName])

   247           effect.options[eventName](effect);

   248       }

   249 

   250       return function(pos) {

   251         if (this.state === "idle") {

   252           this.state = "running";

   253           dispatch(this, 'beforeSetup');

   254           if (this.setup) this.setup();

   255           dispatch(this, 'afterSetup');

   256         }

   257         if (this.state === "running") {

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

   259           this.position = pos;

   260           dispatch(this, 'beforeUpdate');

   261           if (this.update) this.update(pos);

   262           dispatch(this, 'afterUpdate');

   263         }

   264       };

   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 

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

   516 

   517   return new Effect.Tween(null,

   518     scrollOffsets.top,

   519     elementOffsets[1],

   520     options,

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

   522   );

   523 };

   524 

   525 /* ------------- combination effects ------------- */

   526 

   527 Effect.Fade = function(element) {

   528   element = $(element);

   529   var oldOpacity = element.getInlineOpacity();

   530   var options = Object.extend({

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

   532     to:   0.0,

   533     afterFinishInternal: function(effect) {

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

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

   536     }

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

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

   539 };

   540 

   541 Effect.Appear = function(element) {

   542   element = $(element);

   543   var options = Object.extend({

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

   545   to:   1.0,

   546   // force Safari to render floated elements properly

   547   afterFinishInternal: function(effect) {

   548     effect.element.forceRerendering();

   549   },

   550   beforeSetup: function(effect) {

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

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

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

   554 };

   555 

   556 Effect.Puff = function(element) {

   557   element = $(element);

   558   var oldStyle = {

   559     opacity: element.getInlineOpacity(),

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

   561     top:  element.style.top,

   562     left: element.style.left,

   563     width: element.style.width,

   564     height: element.style.height

   565   };

   566   return new Effect.Parallel(

   567    [ new Effect.Scale(element, 200,

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

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

   570      Object.extend({ duration: 1.0,

   571       beforeSetupInternal: function(effect) {

   572         Position.absolutize(effect.effects[0].element);

   573       },

   574       afterFinishInternal: function(effect) {

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

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

   577    );

   578 };

   579 

   580 Effect.BlindUp = function(element) {

   581   element = $(element);

   582   element.makeClipping();

   583   return new Effect.Scale(element, 0,

   584     Object.extend({ scaleContent: false,

   585       scaleX: false,

   586       restoreAfterFinish: true,

   587       afterFinishInternal: function(effect) {

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

   589       }

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

   591   );

   592 };

   593 

   594 Effect.BlindDown = function(element) {

   595   element = $(element);

   596   var elementDimensions = element.getDimensions();

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

   598     scaleContent: false,

   599     scaleX: false,

   600     scaleFrom: 0,

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

   602     restoreAfterFinish: true,

   603     afterSetup: function(effect) {

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

   605     },

   606     afterFinishInternal: function(effect) {

   607       effect.element.undoClipping();

   608     }

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

   610 };

   611 

   612 Effect.SwitchOff = function(element) {

   613   element = $(element);

   614   var oldOpacity = element.getInlineOpacity();

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

   616     duration: 0.4,

   617     from: 0,

   618     transition: Effect.Transitions.flicker,

   619     afterFinishInternal: function(effect) {

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

   621         duration: 0.3, scaleFromCenter: true,

   622         scaleX: false, scaleContent: false, restoreAfterFinish: true,

   623         beforeSetup: function(effect) {

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

   625         },

   626         afterFinishInternal: function(effect) {

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

   628         }

   629       });

   630     }

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

   632 };

   633 

   634 Effect.DropOut = function(element) {

   635   element = $(element);

   636   var oldStyle = {

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

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

   639     opacity: element.getInlineOpacity() };

   640   return new Effect.Parallel(

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

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

   643     Object.extend(

   644       { duration: 0.5,

   645         beforeSetup: function(effect) {

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

   647         },

   648         afterFinishInternal: function(effect) {

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

   650         }

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

   652 };

   653 

   654 Effect.Shake = function(element) {

   655   element = $(element);

   656   var options = Object.extend({

   657     distance: 20,

   658     duration: 0.5

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

   660   var distance = parseFloat(options.distance);

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

   662   var oldStyle = {

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

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

   665     return new Effect.Move(element,

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

   667     new Effect.Move(effect.element,

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

   669     new Effect.Move(effect.element,

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

   671     new Effect.Move(effect.element,

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

   673     new Effect.Move(effect.element,

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

   675     new Effect.Move(effect.element,

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

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

   678   }}); }}); }}); }}); }}); }});

   679 };

   680 

   681 Effect.SlideDown = function(element) {

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

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

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

   685   var elementDimensions = element.getDimensions();

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

   687     scaleContent: false,

   688     scaleX: false,

   689     scaleFrom: window.opera ? 0 : 1,

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

   691     restoreAfterFinish: true,

   692     afterSetup: function(effect) {

   693       effect.element.makePositioned();

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

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

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

   697     },

   698     afterUpdateInternal: function(effect) {

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

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

   701     },

   702     afterFinishInternal: function(effect) {

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

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

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

   706   );

   707 };

   708 

   709 Effect.SlideUp = function(element) {

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

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

   712   var elementDimensions = element.getDimensions();

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

   714    Object.extend({ scaleContent: false,

   715     scaleX: false,

   716     scaleMode: 'box',

   717     scaleFrom: 100,

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

   719     restoreAfterFinish: true,

   720     afterSetup: function(effect) {

   721       effect.element.makePositioned();

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

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

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

   725     },

   726     afterUpdateInternal: function(effect) {

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

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

   729     },

   730     afterFinishInternal: function(effect) {

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

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

   733     }

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

   735   );

   736 };

   737 

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

   739 Effect.Squish = function(element) {

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

   741     restoreAfterFinish: true,

   742     beforeSetup: function(effect) {

   743       effect.element.makeClipping();

   744     },

   745     afterFinishInternal: function(effect) {

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

   747     }

   748   });

   749 };

   750 

   751 Effect.Grow = function(element) {

   752   element = $(element);

   753   var options = Object.extend({

   754     direction: 'center',

   755     moveTransition: Effect.Transitions.sinoidal,

   756     scaleTransition: Effect.Transitions.sinoidal,

   757     opacityTransition: Effect.Transitions.full

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

   759   var oldStyle = {

   760     top: element.style.top,

   761     left: element.style.left,

   762     height: element.style.height,

   763     width: element.style.width,

   764     opacity: element.getInlineOpacity() };

   765 

   766   var dims = element.getDimensions();

   767   var initialMoveX, initialMoveY;

   768   var moveX, moveY;

   769 

   770   switch (options.direction) {

   771     case 'top-left':

   772       initialMoveX = initialMoveY = moveX = moveY = 0;

   773       break;

   774     case 'top-right':

   775       initialMoveX = dims.width;

   776       initialMoveY = moveY = 0;

   777       moveX = -dims.width;

   778       break;

   779     case 'bottom-left':

   780       initialMoveX = moveX = 0;

   781       initialMoveY = dims.height;

   782       moveY = -dims.height;

   783       break;

   784     case 'bottom-right':

   785       initialMoveX = dims.width;

   786       initialMoveY = dims.height;

   787       moveX = -dims.width;

   788       moveY = -dims.height;

   789       break;

   790     case 'center':

   791       initialMoveX = dims.width / 2;

   792       initialMoveY = dims.height / 2;

   793       moveX = -dims.width / 2;

   794       moveY = -dims.height / 2;

   795       break;

   796   }

   797 

   798   return new Effect.Move(element, {

   799     x: initialMoveX,

   800     y: initialMoveY,

   801     duration: 0.01,

   802     beforeSetup: function(effect) {

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

   804     },

   805     afterFinishInternal: function(effect) {

   806       new Effect.Parallel(

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

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

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

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

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

   812         ], Object.extend({

   813              beforeSetup: function(effect) {

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

   815              },

   816              afterFinishInternal: function(effect) {

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

   818              }

   819            }, options)

   820       );

   821     }

   822   });

   823 };

   824 

   825 Effect.Shrink = function(element) {

   826   element = $(element);

   827   var options = Object.extend({

   828     direction: 'center',

   829     moveTransition: Effect.Transitions.sinoidal,

   830     scaleTransition: Effect.Transitions.sinoidal,

   831     opacityTransition: Effect.Transitions.none

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

   833   var oldStyle = {

   834     top: element.style.top,

   835     left: element.style.left,

   836     height: element.style.height,

   837     width: element.style.width,

   838     opacity: element.getInlineOpacity() };

   839 

   840   var dims = element.getDimensions();

   841   var moveX, moveY;

   842 

   843   switch (options.direction) {

   844     case 'top-left':

   845       moveX = moveY = 0;

   846       break;

   847     case 'top-right':

   848       moveX = dims.width;

   849       moveY = 0;

   850       break;

   851     case 'bottom-left':

   852       moveX = 0;

   853       moveY = dims.height;

   854       break;

   855     case 'bottom-right':

   856       moveX = dims.width;

   857       moveY = dims.height;

   858       break;

   859     case 'center':

   860       moveX = dims.width / 2;

   861       moveY = dims.height / 2;

   862       break;

   863   }

   864 

   865   return new Effect.Parallel(

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

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

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

   869     ], Object.extend({

   870          beforeStartInternal: function(effect) {

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

   872          },

   873          afterFinishInternal: function(effect) {

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

   875        }, options)

   876   );

   877 };

   878 

   879 Effect.Pulsate = function(element) {

   880   element = $(element);

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

   882     oldOpacity = element.getInlineOpacity(),

   883     transition = options.transition || Effect.Transitions.linear,

   884     reverser   = function(pos){

   885       return 1 - transition((-Math.cos((pos*(options.pulses||5)*2)*Math.PI)/2) + .5);

   886     };

   887 

   888   return new Effect.Opacity(element,

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

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

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

   892 };

   893 

   894 Effect.Fold = function(element) {

   895   element = $(element);

   896   var oldStyle = {

   897     top: element.style.top,

   898     left: element.style.left,

   899     width: element.style.width,

   900     height: element.style.height };

   901   element.makeClipping();

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

   903     scaleContent: false,

   904     scaleX: false,

   905     afterFinishInternal: function(effect) {

   906     new Effect.Scale(element, 1, {

   907       scaleContent: false,

   908       scaleY: false,

   909       afterFinishInternal: function(effect) {

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

   911       } });

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

   913 };

   914 

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

   916   initialize: function(element) {

   917     this.element = $(element);

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

   919     var options = Object.extend({

   920       style: { }

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

   922 

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

   924     else {

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

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

   927       else {

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

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

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

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

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

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

   934         });

   935         options.afterFinishInternal = function(effect) {

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

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

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

   939           });

   940         };

   941       }

   942     }

   943     this.start(options);

   944   },

   945 

   946   setup: function(){

   947     function parseColor(color){

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

   949       color = color.parseColor();

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

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

   952       });

   953     }

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

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

   956 

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

   958         value = value.parseColor();

   959         unit  = 'color';

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

   961         value = parseFloat(value);

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

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

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

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

   966           value = parseFloat(components[1]);

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

   968       }

   969 

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

   971       return {

   972         style: property.camelize(),

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

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

   975         unit: unit

   976       };

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

   978       return (

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

   980         (

   981           transform.unit != 'color' &&

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

   983         )

   984       );

   985     });

   986   },

   987   update: function(position) {

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

   989     while(i--)

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

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

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

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

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

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

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

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

   998         (transform.originalValue +

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

  1000             (transform.unit === null ? '' : transform.unit);

  1001     this.element.setStyle(style, true);

  1002   }

  1003 });

  1004 

  1005 Effect.Transform = Class.create({

  1006   initialize: function(tracks){

  1007     this.tracks  = [];

  1008     this.options = arguments[1] || { };

  1009     this.addTracks(tracks);

  1010   },

  1011   addTracks: function(tracks){

  1012     tracks.each(function(track){

  1013       track = $H(track);

  1014       var data = track.values().first();

  1015       this.tracks.push($H({

  1016         ids:     track.keys().first(),

  1017         effect:  Effect.Morph,

  1018         options: { style: data }

  1019       }));

  1020     }.bind(this));

  1021     return this;

  1022   },

  1023   play: function(){

  1024     return new Effect.Parallel(

  1025       this.tracks.map(function(track){

  1026         var ids = track.get('ids'), effect = track.get('effect'), options = track.get('options');

  1027         var elements = [$(ids) || $$(ids)].flatten();

  1028         return elements.map(function(e){ return new effect(e, Object.extend({ sync:true }, options)) });

  1029       }).flatten(),

  1030       this.options

  1031     );

  1032   }

  1033 });

  1034 

  1035 Element.CSS_PROPERTIES = $w(

  1036   'backgroundColor backgroundPosition borderBottomColor borderBottomStyle ' +

  1037   'borderBottomWidth borderLeftColor borderLeftStyle borderLeftWidth ' +

  1038   'borderRightColor borderRightStyle borderRightWidth borderSpacing ' +

  1039   'borderTopColor borderTopStyle borderTopWidth bottom clip color ' +

  1040   'fontSize fontWeight height left letterSpacing lineHeight ' +

  1041   'marginBottom marginLeft marginRight marginTop markerOffset maxHeight '+

  1042   'maxWidth minHeight minWidth opacity outlineColor outlineOffset ' +

  1043   'outlineWidth paddingBottom paddingLeft paddingRight paddingTop ' +

  1044   'right textIndent top width wordSpacing zIndex');

  1045 

  1046 Element.CSS_LENGTH = /^(([\+\-]?[0-9\.]+)(em|ex|px|in|cm|mm|pt|pc|\%))|0$/;

  1047 

  1048 String.__parseStyleElement = document.createElement('div');

  1049 String.prototype.parseStyle = function(){

  1050   var style, styleRules = $H();

  1051   if (Prototype.Browser.WebKit)

  1052     style = new Element('div',{style:this}).style;

  1053   else {

  1054     String.__parseStyleElement.innerHTML = '<div style="' + this + '"></div>';

  1055     style = String.__parseStyleElement.childNodes[0].style;

  1056   }

  1057 

  1058   Element.CSS_PROPERTIES.each(function(property){

  1059     if (style[property]) styleRules.set(property, style[property]);

  1060   });

  1061 

  1062   if (Prototype.Browser.IE && this.include('opacity'))

  1063     styleRules.set('opacity', this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1]);

  1064 

  1065   return styleRules;

  1066 };

  1067 

  1068 if (document.defaultView && document.defaultView.getComputedStyle) {

  1069   Element.getStyles = function(element) {

  1070     var css = document.defaultView.getComputedStyle($(element), null);

  1071     return Element.CSS_PROPERTIES.inject({ }, function(styles, property) {

  1072       styles[property] = css[property];

  1073       return styles;

  1074     });

  1075   };

  1076 } else {

  1077   Element.getStyles = function(element) {

  1078     element = $(element);

  1079     var css = element.currentStyle, styles;

  1080     styles = Element.CSS_PROPERTIES.inject({ }, function(results, property) {

  1081       results[property] = css[property];

  1082       return results;

  1083     });

  1084     if (!styles.opacity) styles.opacity = element.getOpacity();

  1085     return styles;

  1086   };

  1087 }

  1088 

  1089 Effect.Methods = {

  1090   morph: function(element, style) {

  1091     element = $(element);

  1092     new Effect.Morph(element, Object.extend({ style: style }, arguments[2] || { }));

  1093     return element;

  1094   },

  1095   visualEffect: function(element, effect, options) {

  1096     element = $(element);

  1097     var s = effect.dasherize().camelize(), klass = s.charAt(0).toUpperCase() + s.substring(1);

  1098     new Effect[klass](element, options);

  1099     return element;

  1100   },

  1101   highlight: function(element, options) {

  1102     element = $(element);

  1103     new Effect.Highlight(element, options);

  1104     return element;

  1105   }

  1106 };

  1107 

  1108 $w('fade appear grow shrink fold blindUp blindDown slideUp slideDown '+

  1109   'pulsate shake puff squish switchOff dropOut').each(

  1110   function(effect) {

  1111     Effect.Methods[effect] = function(element, options){

  1112       element = $(element);

  1113       Effect[effect.charAt(0).toUpperCase() + effect.substring(1)](element, options);

  1114       return element;

  1115     };

  1116   }

  1117 );

  1118 

  1119 $w('getInlineOpacity forceRerendering setContentZoom collectTextNodes collectTextNodesIgnoreClass getStyles').each(

  1120   function(f) { Effect.Methods[f] = Element[f]; }

  1121 );

  1122 

  1123 Element.addMethods(Effect.Methods);