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/source/Plug-in/lightbox/effects.js

http://prosporous.googlecode.com/
JavaScript | 903 lines | 812 code | 63 blank | 28 comment | 123 complexity | 82e25a810f86d3b8ca0ca42ef56a8956 MD5 | raw file
  1// Copyright (c) 2005 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
  2// Contributors:
  3//  Justin Palmer (http://encytemedia.com/)
  4//  Mark Pilgrim (http://diveintomark.org/)
  5//  Martin Bialasinki
  6// 
  7// See scriptaculous.js for full license.  
  8
  9/* ------------- element ext -------------- */  
 10 
 11// converts rgb() and #xxx to #xxxxxx format,  
 12// returns self (or first argument) if not convertable  
 13String.prototype.parseColor = function() {  
 14  var color = '#';  
 15  if(this.slice(0,4) == 'rgb(') {  
 16    var cols = this.slice(4,this.length-1).split(',');  
 17    var i=0; do { color += parseInt(cols[i]).toColorPart() } while (++i<3);  
 18  } else {  
 19    if(this.slice(0,1) == '#') {  
 20      if(this.length==4) for(var i=1;i<4;i++) color += (this.charAt(i) + this.charAt(i)).toLowerCase();  
 21      if(this.length==7) color = this.toLowerCase();  
 22    }  
 23  }  
 24  return(color.length==7 ? color : (arguments[0] || this));  
 25}
 26
 27Element.collectTextNodes = function(element) {  
 28  return $A($(element).childNodes).collect( function(node) {
 29    return (node.nodeType==3 ? node.nodeValue : 
 30      (node.hasChildNodes() ? Element.collectTextNodes(node) : ''));
 31  }).flatten().join('');
 32}
 33
 34Element.collectTextNodesIgnoreClass = function(element, className) {  
 35  return $A($(element).childNodes).collect( function(node) {
 36    return (node.nodeType==3 ? node.nodeValue : 
 37      ((node.hasChildNodes() && !Element.hasClassName(node,className)) ? 
 38        Element.collectTextNodes(node) : ''));
 39  }).flatten().join('');
 40}
 41
 42Element.setStyle = function(element, style) {
 43  element = $(element);
 44  for(k in style) element.style[k.camelize()] = style[k];
 45}
 46
 47Element.setContentZoom = function(element, percent) {  
 48  Element.setStyle(element, {fontSize: (percent/100) + 'em'});   
 49  if(navigator.appVersion.indexOf('AppleWebKit')>0) window.scrollBy(0,0);  
 50}
 51
 52Element.getOpacity = function(element){  
 53  var opacity;
 54  if (opacity = Element.getStyle(element, 'opacity'))  
 55    return parseFloat(opacity);  
 56  if (opacity = (Element.getStyle(element, 'filter') || '').match(/alpha\(opacity=(.*)\)/))  
 57    if(opacity[1]) return parseFloat(opacity[1]) / 100;  
 58  return 1.0;  
 59}
 60
 61Element.setOpacity = function(element, value){  
 62  element= $(element);  
 63  if (value == 1){
 64    Element.setStyle(element, { opacity: 
 65      (/Gecko/.test(navigator.userAgent) && !/Konqueror|Safari|KHTML/.test(navigator.userAgent)) ? 
 66      0.999999 : null });
 67    if(/MSIE/.test(navigator.userAgent))  
 68      Element.setStyle(element, {filter: Element.getStyle(element,'filter').replace(/alpha\([^\)]*\)/gi,'')});  
 69  } else {  
 70    if(value < 0.00001) value = 0;  
 71    Element.setStyle(element, {opacity: value});
 72    if(/MSIE/.test(navigator.userAgent))  
 73     Element.setStyle(element, 
 74       { filter: Element.getStyle(element,'filter').replace(/alpha\([^\)]*\)/gi,'') +
 75                 'alpha(opacity='+value*100+')' });  
 76  }   
 77}  
 78 
 79Element.getInlineOpacity = function(element){  
 80  return $(element).style.opacity || '';
 81}  
 82
 83Element.childrenWithClassName = function(element, className) {  
 84  return $A($(element).getElementsByTagName('*')).select(
 85    function(c) { return Element.hasClassName(c, className) });
 86}
 87
 88Array.prototype.call = function() {
 89  var args = arguments;
 90  this.each(function(f){ f.apply(this, args) });
 91}
 92
 93/*--------------------------------------------------------------------------*/
 94
 95var Effect = {
 96  tagifyText: function(element) {
 97    var tagifyStyle = 'position:relative';
 98    if(/MSIE/.test(navigator.userAgent)) tagifyStyle += ';zoom:1';
 99    element = $(element);
100    $A(element.childNodes).each( function(child) {
101      if(child.nodeType==3) {
102        child.nodeValue.toArray().each( function(character) {
103          element.insertBefore(
104            Builder.node('span',{style: tagifyStyle},
105              character == ' ' ? String.fromCharCode(160) : character), 
106              child);
107        });
108        Element.remove(child);
109      }
110    });
111  },
112  multiple: function(element, effect) {
113    var elements;
114    if(((typeof element == 'object') || 
115        (typeof element == 'function')) && 
116       (element.length))
117      elements = element;
118    else
119      elements = $(element).childNodes;
120      
121    var options = Object.extend({
122      speed: 0.1,
123      delay: 0.0
124    }, arguments[2] || {});
125    var masterDelay = options.delay;
126
127    $A(elements).each( function(element, index) {
128      new effect(element, Object.extend(options, { delay: index * options.speed + masterDelay }));
129    });
130  },
131  PAIRS: {
132    'slide':  ['SlideDown','SlideUp'],
133    'blind':  ['BlindDown','BlindUp'],
134    'appear': ['Appear','Fade']
135  },
136  toggle: function(element, effect) {
137    element = $(element);
138    effect = (effect || 'appear').toLowerCase();
139    var options = Object.extend({
140      queue: { position:'end', scope:(element.id || 'global') }
141    }, arguments[2] || {});
142    Effect[Element.visible(element) ? 
143      Effect.PAIRS[effect][1] : Effect.PAIRS[effect][0]](element, options);
144  }
145};
146
147var Effect2 = Effect; // deprecated
148
149/* ------------- transitions ------------- */
150
151Effect.Transitions = {}
152
153Effect.Transitions.linear = function(pos) {
154  return pos;
155}
156Effect.Transitions.sinoidal = function(pos) {
157  return (-Math.cos(pos*Math.PI)/2) + 0.5;
158}
159Effect.Transitions.reverse  = function(pos) {
160  return 1-pos;
161}
162Effect.Transitions.flicker = function(pos) {
163  return ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4;
164}
165Effect.Transitions.wobble = function(pos) {
166  return (-Math.cos(pos*Math.PI*(9*pos))/2) + 0.5;
167}
168Effect.Transitions.pulse = function(pos) {
169  return (Math.floor(pos*10) % 2 == 0 ? 
170    (pos*10-Math.floor(pos*10)) : 1-(pos*10-Math.floor(pos*10)));
171}
172Effect.Transitions.none = function(pos) {
173  return 0;
174}
175Effect.Transitions.full = function(pos) {
176  return 1;
177}
178
179/* ------------- core effects ------------- */
180
181Effect.ScopedQueue = Class.create();
182Object.extend(Object.extend(Effect.ScopedQueue.prototype, Enumerable), {
183  initialize: function() {
184    this.effects  = [];
185    this.interval = null;
186  },
187  _each: function(iterator) {
188    this.effects._each(iterator);
189  },
190  add: function(effect) {
191    var timestamp = new Date().getTime();
192    
193    var position = (typeof effect.options.queue == 'string') ? 
194      effect.options.queue : effect.options.queue.position;
195    
196    switch(position) {
197      case 'front':
198        // move unstarted effects after this effect  
199        this.effects.findAll(function(e){ return e.state=='idle' }).each( function(e) {
200            e.startOn  += effect.finishOn;
201            e.finishOn += effect.finishOn;
202          });
203        break;
204      case 'end':
205        // start effect after last queued effect has finished
206        timestamp = this.effects.pluck('finishOn').max() || timestamp;
207        break;
208    }
209    
210    effect.startOn  += timestamp;
211    effect.finishOn += timestamp;
212    this.effects.push(effect);
213    if(!this.interval) 
214      this.interval = setInterval(this.loop.bind(this), 40);
215  },
216  remove: function(effect) {
217    this.effects = this.effects.reject(function(e) { return e==effect });
218    if(this.effects.length == 0) {
219      clearInterval(this.interval);
220      this.interval = null;
221    }
222  },
223  loop: function() {
224    var timePos = new Date().getTime();
225    this.effects.invoke('loop', timePos);
226  }
227});
228
229Effect.Queues = {
230  instances: $H(),
231  get: function(queueName) {
232    if(typeof queueName != 'string') return queueName;
233    
234    if(!this.instances[queueName])
235      this.instances[queueName] = new Effect.ScopedQueue();
236      
237    return this.instances[queueName];
238  }
239}
240Effect.Queue = Effect.Queues.get('global');
241
242Effect.DefaultOptions = {
243  transition: Effect.Transitions.sinoidal,
244  duration:   1.0,   // seconds
245  fps:        25.0,  // max. 25fps due to Effect.Queue implementation
246  sync:       false, // true for combining
247  from:       0.0,
248  to:         1.0,
249  delay:      0.0,
250  queue:      'parallel'
251}
252
253Effect.Base = function() {};
254Effect.Base.prototype = {
255  position: null,
256  start: function(options) {
257    this.options      = Object.extend(Object.extend({},Effect.DefaultOptions), options || {});
258    this.currentFrame = 0;
259    this.state        = 'idle';
260    this.startOn      = this.options.delay*1000;
261    this.finishOn     = this.startOn + (this.options.duration*1000);
262    this.event('beforeStart');
263    if(!this.options.sync)
264      Effect.Queues.get(typeof this.options.queue == 'string' ? 
265        'global' : this.options.queue.scope).add(this);
266  },
267  loop: function(timePos) {
268    if(timePos >= this.startOn) {
269      if(timePos >= this.finishOn) {
270        this.render(1.0);
271        this.cancel();
272        this.event('beforeFinish');
273        if(this.finish) this.finish(); 
274        this.event('afterFinish');
275        return;  
276      }
277      var pos   = (timePos - this.startOn) / (this.finishOn - this.startOn);
278      var frame = Math.round(pos * this.options.fps * this.options.duration);
279      if(frame > this.currentFrame) {
280        this.render(pos);
281        this.currentFrame = frame;
282      }
283    }
284  },
285  render: function(pos) {
286    if(this.state == 'idle') {
287      this.state = 'running';
288      this.event('beforeSetup');
289      if(this.setup) this.setup();
290      this.event('afterSetup');
291    }
292    if(this.state == 'running') {
293      if(this.options.transition) pos = this.options.transition(pos);
294      pos *= (this.options.to-this.options.from);
295      pos += this.options.from;
296      this.position = pos;
297      this.event('beforeUpdate');
298      if(this.update) this.update(pos);
299      this.event('afterUpdate');
300    }
301  },
302  cancel: function() {
303    if(!this.options.sync)
304      Effect.Queues.get(typeof this.options.queue == 'string' ? 
305        'global' : this.options.queue.scope).remove(this);
306    this.state = 'finished';
307  },
308  event: function(eventName) {
309    if(this.options[eventName + 'Internal']) this.options[eventName + 'Internal'](this);
310    if(this.options[eventName]) this.options[eventName](this);
311  },
312  inspect: function() {
313    return '#<Effect:' + $H(this).inspect() + ',options:' + $H(this.options).inspect() + '>';
314  }
315}
316
317Effect.Parallel = Class.create();
318Object.extend(Object.extend(Effect.Parallel.prototype, Effect.Base.prototype), {
319  initialize: function(effects) {
320    this.effects = effects || [];
321    this.start(arguments[1]);
322  },
323  update: function(position) {
324    this.effects.invoke('render', position);
325  },
326  finish: function(position) {
327    this.effects.each( function(effect) {
328      effect.render(1.0);
329      effect.cancel();
330      effect.event('beforeFinish');
331      if(effect.finish) effect.finish(position);
332      effect.event('afterFinish');
333    });
334  }
335});
336
337Effect.Opacity = Class.create();
338Object.extend(Object.extend(Effect.Opacity.prototype, Effect.Base.prototype), {
339  initialize: function(element) {
340    this.element = $(element);
341    // make this work on IE on elements without 'layout'
342    if(/MSIE/.test(navigator.userAgent) && (!this.element.hasLayout))
343      Element.setStyle(this.element, {zoom: 1});
344    var options = Object.extend({
345      from: Element.getOpacity(this.element) || 0.0,
346      to:   1.0
347    }, arguments[1] || {});
348    this.start(options);
349  },
350  update: function(position) {
351    Element.setOpacity(this.element, position);
352  }
353});
354
355Effect.Move = Class.create();
356Object.extend(Object.extend(Effect.Move.prototype, Effect.Base.prototype), {
357  initialize: function(element) {
358    this.element = $(element);
359    var options = Object.extend({
360      x:    0,
361      y:    0,
362      mode: 'relative'
363    }, arguments[1] || {});
364    this.start(options);
365  },
366  setup: function() {
367    // Bug in Opera: Opera returns the "real" position of a static element or
368    // relative element that does not have top/left explicitly set.
369    // ==> Always set top and left for position relative elements in your stylesheets 
370    // (to 0 if you do not need them) 
371    Element.makePositioned(this.element);
372    this.originalLeft = parseFloat(Element.getStyle(this.element,'left') || '0');
373    this.originalTop  = parseFloat(Element.getStyle(this.element,'top')  || '0');
374    if(this.options.mode == 'absolute') {
375      // absolute movement, so we need to calc deltaX and deltaY
376      this.options.x = this.options.x - this.originalLeft;
377      this.options.y = this.options.y - this.originalTop;
378    }
379  },
380  update: function(position) {
381    Element.setStyle(this.element, {
382      left: this.options.x  * position + this.originalLeft + 'px',
383      top:  this.options.y  * position + this.originalTop  + 'px'
384    });
385  }
386});
387
388// for backwards compatibility
389Effect.MoveBy = function(element, toTop, toLeft) {
390  return new Effect.Move(element, 
391    Object.extend({ x: toLeft, y: toTop }, arguments[3] || {}));
392};
393
394Effect.Scale = Class.create();
395Object.extend(Object.extend(Effect.Scale.prototype, Effect.Base.prototype), {
396  initialize: function(element, percent) {
397    this.element = $(element)
398    var options = Object.extend({
399      scaleX: true,
400      scaleY: true,
401      scaleContent: true,
402      scaleFromCenter: false,
403      scaleMode: 'box',        // 'box' or 'contents' or {} with provided values
404      scaleFrom: 100.0,
405      scaleTo:   percent
406    }, arguments[2] || {});
407    this.start(options);
408  },
409  setup: function() {
410    this.restoreAfterFinish = this.options.restoreAfterFinish || false;
411    this.elementPositioning = Element.getStyle(this.element,'position');
412    
413    this.originalStyle = {};
414    ['top','left','width','height','fontSize'].each( function(k) {
415      this.originalStyle[k] = this.element.style[k];
416    }.bind(this));
417      
418    this.originalTop  = this.element.offsetTop;
419    this.originalLeft = this.element.offsetLeft;
420    
421    var fontSize = Element.getStyle(this.element,'font-size') || '100%';
422    ['em','px','%'].each( function(fontSizeType) {
423      if(fontSize.indexOf(fontSizeType)>0) {
424        this.fontSize     = parseFloat(fontSize);
425        this.fontSizeType = fontSizeType;
426      }
427    }.bind(this));
428    
429    this.factor = (this.options.scaleTo - this.options.scaleFrom)/100;
430    
431    this.dims = null;
432    if(this.options.scaleMode=='box')
433      this.dims = [this.element.offsetHeight, this.element.offsetWidth];
434    if(/^content/.test(this.options.scaleMode))
435      this.dims = [this.element.scrollHeight, this.element.scrollWidth];
436    if(!this.dims)
437      this.dims = [this.options.scaleMode.originalHeight,
438                   this.options.scaleMode.originalWidth];
439  },
440  update: function(position) {
441    var currentScale = (this.options.scaleFrom/100.0) + (this.factor * position);
442    if(this.options.scaleContent && this.fontSize)
443      Element.setStyle(this.element, {fontSize: this.fontSize * currentScale + this.fontSizeType });
444    this.setDimensions(this.dims[0] * currentScale, this.dims[1] * currentScale);
445  },
446  finish: function(position) {
447    if (this.restoreAfterFinish) Element.setStyle(this.element, this.originalStyle);
448  },
449  setDimensions: function(height, width) {
450    var d = {};
451    if(this.options.scaleX) d.width = width + 'px';
452    if(this.options.scaleY) d.height = height + 'px';
453    if(this.options.scaleFromCenter) {
454      var topd  = (height - this.dims[0])/2;
455      var leftd = (width  - this.dims[1])/2;
456      if(this.elementPositioning == 'absolute') {
457        if(this.options.scaleY) d.top = this.originalTop-topd + 'px';
458        if(this.options.scaleX) d.left = this.originalLeft-leftd + 'px';
459      } else {
460        if(this.options.scaleY) d.top = -topd + 'px';
461        if(this.options.scaleX) d.left = -leftd + 'px';
462      }
463    }
464    Element.setStyle(this.element, d);
465  }
466});
467
468Effect.Highlight = Class.create();
469Object.extend(Object.extend(Effect.Highlight.prototype, Effect.Base.prototype), {
470  initialize: function(element) {
471    this.element = $(element);
472    var options = Object.extend({ startcolor: '#ffff99' }, arguments[1] || {});
473    this.start(options);
474  },
475  setup: function() {
476    // Prevent executing on elements not in the layout flow
477    if(Element.getStyle(this.element, 'display')=='none') { this.cancel(); return; }
478    // Disable background image during the effect
479    this.oldStyle = {
480      backgroundImage: Element.getStyle(this.element, 'background-image') };
481    Element.setStyle(this.element, {backgroundImage: 'none'});
482    if(!this.options.endcolor)
483      this.options.endcolor = Element.getStyle(this.element, 'background-color').parseColor('#ffffff');
484    if(!this.options.restorecolor)
485      this.options.restorecolor = Element.getStyle(this.element, 'background-color');
486    // init color calculations
487    this._base  = $R(0,2).map(function(i){ return parseInt(this.options.startcolor.slice(i*2+1,i*2+3),16) }.bind(this));
488    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));
489  },
490  update: function(position) {
491    Element.setStyle(this.element,{backgroundColor: $R(0,2).inject('#',function(m,v,i){
492      return m+(Math.round(this._base[i]+(this._delta[i]*position)).toColorPart()); }.bind(this)) });
493  },
494  finish: function() {
495    Element.setStyle(this.element, Object.extend(this.oldStyle, {
496      backgroundColor: this.options.restorecolor
497    }));
498  }
499});
500
501Effect.ScrollTo = Class.create();
502Object.extend(Object.extend(Effect.ScrollTo.prototype, Effect.Base.prototype), {
503  initialize: function(element) {
504    this.element = $(element);
505    this.start(arguments[1] || {});
506  },
507  setup: function() {
508    Position.prepare();
509    var offsets = Position.cumulativeOffset(this.element);
510    if(this.options.offset) offsets[1] += this.options.offset;
511    var max = window.innerHeight ? 
512      window.height - window.innerHeight :
513      document.body.scrollHeight - 
514        (document.documentElement.clientHeight ? 
515          document.documentElement.clientHeight : document.body.clientHeight);
516    this.scrollStart = Position.deltaY;
517    this.delta = (offsets[1] > max ? max : offsets[1]) - this.scrollStart;
518  },
519  update: function(position) {
520    Position.prepare();
521    window.scrollTo(Position.deltaX, 
522      this.scrollStart + (position*this.delta));
523  }
524});
525
526/* ------------- combination effects ------------- */
527
528Effect.Fade = function(element) {
529  var oldOpacity = Element.getInlineOpacity(element);
530  var options = Object.extend({
531  from: Element.getOpacity(element) || 1.0,
532  to:   0.0,
533  afterFinishInternal: function(effect) { with(Element) { 
534    if(effect.options.to!=0) return;
535    hide(effect.element);
536    setStyle(effect.element, {opacity: oldOpacity}); }}
537  }, arguments[1] || {});
538  return new Effect.Opacity(element,options);
539}
540
541Effect.Appear = function(element) {
542  var options = Object.extend({
543  from: (Element.getStyle(element, 'display') == 'none' ? 0.0 : Element.getOpacity(element) || 0.0),
544  to:   1.0,
545  beforeSetup: function(effect) { with(Element) {
546    setOpacity(effect.element, effect.options.from);
547    show(effect.element); }}
548  }, arguments[1] || {});
549  return new Effect.Opacity(element,options);
550}
551
552Effect.Puff = function(element) {
553  element = $(element);
554  var oldStyle = { opacity: Element.getInlineOpacity(element), position: Element.getStyle(element, 'position') };
555  return new Effect.Parallel(
556   [ new Effect.Scale(element, 200, 
557      { sync: true, scaleFromCenter: true, scaleContent: true, restoreAfterFinish: true }), 
558     new Effect.Opacity(element, { sync: true, to: 0.0 } ) ], 
559     Object.extend({ duration: 1.0, 
560      beforeSetupInternal: function(effect) { with(Element) {
561        setStyle(effect.effects[0].element, {position: 'absolute'}); }},
562      afterFinishInternal: function(effect) { with(Element) {
563         hide(effect.effects[0].element);
564         setStyle(effect.effects[0].element, oldStyle); }}
565     }, arguments[1] || {})
566   );
567}
568
569Effect.BlindUp = function(element) {
570  element = $(element);
571  Element.makeClipping(element);
572  return new Effect.Scale(element, 0, 
573    Object.extend({ scaleContent: false, 
574      scaleX: false, 
575      restoreAfterFinish: true,
576      afterFinishInternal: function(effect) { with(Element) {
577        [hide, undoClipping].call(effect.element); }} 
578    }, arguments[1] || {})
579  );
580}
581
582Effect.BlindDown = function(element) {
583  element = $(element);
584  var oldHeight = Element.getStyle(element, 'height');
585  var elementDimensions = Element.getDimensions(element);
586  return new Effect.Scale(element, 100, 
587    Object.extend({ scaleContent: false, 
588      scaleX: false,
589      scaleFrom: 0,
590      scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
591      restoreAfterFinish: true,
592      afterSetup: function(effect) { with(Element) {
593        makeClipping(effect.element);
594        setStyle(effect.element, {height: '0px'});
595        show(effect.element); 
596      }},  
597      afterFinishInternal: function(effect) { with(Element) {
598        undoClipping(effect.element);
599        setStyle(effect.element, {height: oldHeight});
600      }}
601    }, arguments[1] || {})
602  );
603}
604
605Effect.SwitchOff = function(element) {
606  element = $(element);
607  var oldOpacity = Element.getInlineOpacity(element);
608  return new Effect.Appear(element, { 
609    duration: 0.4,
610    from: 0,
611    transition: Effect.Transitions.flicker,
612    afterFinishInternal: function(effect) {
613      new Effect.Scale(effect.element, 1, { 
614        duration: 0.3, scaleFromCenter: true,
615        scaleX: false, scaleContent: false, restoreAfterFinish: true,
616        beforeSetup: function(effect) { with(Element) {
617          [makePositioned,makeClipping].call(effect.element);
618        }},
619        afterFinishInternal: function(effect) { with(Element) {
620          [hide,undoClipping,undoPositioned].call(effect.element);
621          setStyle(effect.element, {opacity: oldOpacity});
622        }}
623      })
624    }
625  });
626}
627
628Effect.DropOut = function(element) {
629  element = $(element);
630  var oldStyle = {
631    top: Element.getStyle(element, 'top'),
632    left: Element.getStyle(element, 'left'),
633    opacity: Element.getInlineOpacity(element) };
634  return new Effect.Parallel(
635    [ new Effect.Move(element, {x: 0, y: 100, sync: true }), 
636      new Effect.Opacity(element, { sync: true, to: 0.0 }) ],
637    Object.extend(
638      { duration: 0.5,
639        beforeSetup: function(effect) { with(Element) {
640          makePositioned(effect.effects[0].element); }},
641        afterFinishInternal: function(effect) { with(Element) {
642          [hide, undoPositioned].call(effect.effects[0].element);
643          setStyle(effect.effects[0].element, oldStyle); }} 
644      }, arguments[1] || {}));
645}
646
647Effect.Shake = function(element) {
648  element = $(element);
649  var oldStyle = {
650    top: Element.getStyle(element, 'top'),
651    left: Element.getStyle(element, 'left') };
652	  return new Effect.Move(element, 
653	    { x:  20, y: 0, duration: 0.05, afterFinishInternal: function(effect) {
654	  new Effect.Move(effect.element,
655	    { x: -40, y: 0, duration: 0.1,  afterFinishInternal: function(effect) {
656	  new Effect.Move(effect.element,
657	    { x:  40, y: 0, duration: 0.1,  afterFinishInternal: function(effect) {
658	  new Effect.Move(effect.element,
659	    { x: -40, y: 0, duration: 0.1,  afterFinishInternal: function(effect) {
660	  new Effect.Move(effect.element,
661	    { x:  40, y: 0, duration: 0.1,  afterFinishInternal: function(effect) {
662	  new Effect.Move(effect.element,
663	    { x: -20, y: 0, duration: 0.05, afterFinishInternal: function(effect) { with(Element) {
664        undoPositioned(effect.element);
665        setStyle(effect.element, oldStyle);
666  }}}) }}) }}) }}) }}) }});
667}
668
669Effect.SlideDown = function(element) {
670  element = $(element);
671  Element.cleanWhitespace(element);
672  // SlideDown need to have the content of the element wrapped in a container element with fixed height!
673  var oldInnerBottom = Element.getStyle(element.firstChild, 'bottom');
674  var elementDimensions = Element.getDimensions(element);
675  return new Effect.Scale(element, 100, Object.extend({ 
676    scaleContent: false, 
677    scaleX: false, 
678    scaleFrom: 0,
679    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
680    restoreAfterFinish: true,
681    afterSetup: function(effect) { with(Element) {
682      makePositioned(effect.element);
683      makePositioned(effect.element.firstChild);
684      if(window.opera) setStyle(effect.element, {top: ''});
685      makeClipping(effect.element);
686      setStyle(effect.element, {height: '0px'});
687      show(element); }},
688    afterUpdateInternal: function(effect) { with(Element) {
689      setStyle(effect.element.firstChild, {bottom:
690        (effect.dims[0] - effect.element.clientHeight) + 'px' }); }},
691    afterFinishInternal: function(effect) { with(Element) {
692      undoClipping(effect.element); 
693      undoPositioned(effect.element.firstChild);
694      undoPositioned(effect.element);
695      setStyle(effect.element.firstChild, {bottom: oldInnerBottom}); }}
696    }, arguments[1] || {})
697  );
698}
699  
700Effect.SlideUp = function(element) {
701  element = $(element);
702  Element.cleanWhitespace(element);
703  var oldInnerBottom = Element.getStyle(element.firstChild, 'bottom');
704  return new Effect.Scale(element, 0, 
705   Object.extend({ scaleContent: false, 
706    scaleX: false, 
707    scaleMode: 'box',
708    scaleFrom: 100,
709    restoreAfterFinish: true,
710    beforeStartInternal: function(effect) { with(Element) {
711      makePositioned(effect.element);
712      makePositioned(effect.element.firstChild);
713      if(window.opera) setStyle(effect.element, {top: ''});
714      makeClipping(effect.element);
715      show(element); }},  
716    afterUpdateInternal: function(effect) { with(Element) {
717      setStyle(effect.element.firstChild, {bottom:
718        (effect.dims[0] - effect.element.clientHeight) + 'px' }); }},
719    afterFinishInternal: function(effect) { with(Element) {
720        [hide, undoClipping].call(effect.element); 
721        undoPositioned(effect.element.firstChild);
722        undoPositioned(effect.element);
723        setStyle(effect.element.firstChild, {bottom: oldInnerBottom}); }}
724   }, arguments[1] || {})
725  );
726}
727
728// Bug in opera makes the TD containing this element expand for a instance after finish 
729Effect.Squish = function(element) {
730  return new Effect.Scale(element, window.opera ? 1 : 0, 
731    { restoreAfterFinish: true,
732      beforeSetup: function(effect) { with(Element) {
733        makeClipping(effect.element); }},  
734      afterFinishInternal: function(effect) { with(Element) {
735        hide(effect.element); 
736        undoClipping(effect.element); }}
737  });
738}
739
740Effect.Grow = function(element) {
741  element = $(element);
742  var options = Object.extend({
743    direction: 'center',
744    moveTransistion: Effect.Transitions.sinoidal,
745    scaleTransition: Effect.Transitions.sinoidal,
746    opacityTransition: Effect.Transitions.full
747  }, arguments[1] || {});
748  var oldStyle = {
749    top: element.style.top,
750    left: element.style.left,
751    height: element.style.height,
752    width: element.style.width,
753    opacity: Element.getInlineOpacity(element) };
754
755  var dims = Element.getDimensions(element);    
756  var initialMoveX, initialMoveY;
757  var moveX, moveY;
758  
759  switch (options.direction) {
760    case 'top-left':
761      initialMoveX = initialMoveY = moveX = moveY = 0; 
762      break;
763    case 'top-right':
764      initialMoveX = dims.width;
765      initialMoveY = moveY = 0;
766      moveX = -dims.width;
767      break;
768    case 'bottom-left':
769      initialMoveX = moveX = 0;
770      initialMoveY = dims.height;
771      moveY = -dims.height;
772      break;
773    case 'bottom-right':
774      initialMoveX = dims.width;
775      initialMoveY = dims.height;
776      moveX = -dims.width;
777      moveY = -dims.height;
778      break;
779    case 'center':
780      initialMoveX = dims.width / 2;
781      initialMoveY = dims.height / 2;
782      moveX = -dims.width / 2;
783      moveY = -dims.height / 2;
784      break;
785  }
786  
787  return new Effect.Move(element, {
788    x: initialMoveX,
789    y: initialMoveY,
790    duration: 0.01, 
791    beforeSetup: function(effect) { with(Element) {
792      hide(effect.element);
793      makeClipping(effect.element);
794      makePositioned(effect.element);
795    }},
796    afterFinishInternal: function(effect) {
797      new Effect.Parallel(
798        [ new Effect.Opacity(effect.element, { sync: true, to: 1.0, from: 0.0, transition: options.opacityTransition }),
799          new Effect.Move(effect.element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition }),
800          new Effect.Scale(effect.element, 100, {
801            scaleMode: { originalHeight: dims.height, originalWidth: dims.width }, 
802            sync: true, scaleFrom: window.opera ? 1 : 0, transition: options.scaleTransition, restoreAfterFinish: true})
803        ], Object.extend({
804             beforeSetup: function(effect) { with(Element) {
805               setStyle(effect.effects[0].element, {height: '0px'});
806               show(effect.effects[0].element); }},
807             afterFinishInternal: function(effect) { with(Element) {
808               [undoClipping, undoPositioned].call(effect.effects[0].element); 
809               setStyle(effect.effects[0].element, oldStyle); }}
810           }, options)
811      )
812    }
813  });
814}
815
816Effect.Shrink = function(element) {
817  element = $(element);
818  var options = Object.extend({
819    direction: 'center',
820    moveTransistion: Effect.Transitions.sinoidal,
821    scaleTransition: Effect.Transitions.sinoidal,
822    opacityTransition: Effect.Transitions.none
823  }, arguments[1] || {});
824  var oldStyle = {
825    top: element.style.top,
826    left: element.style.left,
827    height: element.style.height,
828    width: element.style.width,
829    opacity: Element.getInlineOpacity(element) };
830
831  var dims = Element.getDimensions(element);
832  var moveX, moveY;
833  
834  switch (options.direction) {
835    case 'top-left':
836      moveX = moveY = 0;
837      break;
838    case 'top-right':
839      moveX = dims.width;
840      moveY = 0;
841      break;
842    case 'bottom-left':
843      moveX = 0;
844      moveY = dims.height;
845      break;
846    case 'bottom-right':
847      moveX = dims.width;
848      moveY = dims.height;
849      break;
850    case 'center':  
851      moveX = dims.width / 2;
852      moveY = dims.height / 2;
853      break;
854  }
855  
856  return new Effect.Parallel(
857    [ new Effect.Opacity(element, { sync: true, to: 0.0, from: 1.0, transition: options.opacityTransition }),
858      new Effect.Scale(element, window.opera ? 1 : 0, { sync: true, transition: options.scaleTransition, restoreAfterFinish: true}),
859      new Effect.Move(element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition })
860    ], Object.extend({            
861         beforeStartInternal: function(effect) { with(Element) {
862           [makePositioned, makeClipping].call(effect.effects[0].element) }},
863         afterFinishInternal: function(effect) { with(Element) {
864           [hide, undoClipping, undoPositioned].call(effect.effects[0].element);
865           setStyle(effect.effects[0].element, oldStyle); }}
866       }, options)
867  );
868}
869
870Effect.Pulsate = function(element) {
871  element = $(element);
872  var options    = arguments[1] || {};
873  var oldOpacity = Element.getInlineOpacity(element);
874  var transition = options.transition || Effect.Transitions.sinoidal;
875  var reverser   = function(pos){ return transition(1-Effect.Transitions.pulse(pos)) };
876  reverser.bind(transition);
877  return new Effect.Opacity(element, 
878    Object.extend(Object.extend({  duration: 3.0, from: 0,
879      afterFinishInternal: function(effect) { Element.setStyle(effect.element, {opacity: oldOpacity}); }
880    }, options), {transition: reverser}));
881}
882
883Effect.Fold = function(element) {
884  element = $(element);
885  var oldStyle = {
886    top: element.style.top,
887    left: element.style.left,
888    width: element.style.width,
889    height: element.style.height };
890  Element.makeClipping(element);
891  return new Effect.Scale(element, 5, Object.extend({   
892    scaleContent: false,
893    scaleX: false,
894    afterFinishInternal: function(effect) {
895    new Effect.Scale(element, 1, { 
896      scaleContent: false, 
897      scaleY: false,
898      afterFinishInternal: function(effect) { with(Element) {
899        [hide, undoClipping].call(effect.element); 
900        setStyle(effect.element, oldStyle);
901      }} });
902  }}, arguments[1] || {}));
903}