[Sommaire] [Imprimer]

   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  // converts rgb() and #xxx to #xxxxxx format,  
  10  // returns self (or first argument) if not convertable  
  11  String.prototype.parseColor = function() {  
  12    var color = '#';  
  13    if(this.slice(0,4) == 'rgb(') {  
  14      var cols = this.slice(4,this.length-1).split(',');  
  15      var i=0; do { color += parseInt(cols[i]).toColorPart() } while (++i<3);  
  16    } else {  
  17      if(this.slice(0,1) == '#') {  
  18        if(this.length==4) for(var i=1;i<4;i++) color += (this.charAt(i) + this.charAt(i)).toLowerCase();  
  19        if(this.length==7) color = this.toLowerCase();  
  20      }  
  21    }  
  22    return(color.length==7 ? color : (arguments[0] || this));  
  23  }
  24  
  25  /*--------------------------------------------------------------------------*/
  26  
  27  Element.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  
  34  Element.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.collectTextNodesIgnoreClass(node, className) : ''));
  39    }).flatten().join('');
  40  }
  41  
  42  Element.setContentZoom = function(element, percent) {
  43    element = $(element);  
  44    Element.setStyle(element, {fontSize: (percent/100) + 'em'});   
  45    if(navigator.appVersion.indexOf('AppleWebKit')>0) window.scrollBy(0,0);
  46  }
  47  
  48  Element.getOpacity = function(element){  
  49    var opacity;
  50    if (opacity = Element.getStyle(element, 'opacity'))  
  51      return parseFloat(opacity);  
  52    if (opacity = (Element.getStyle(element, 'filter') || '').match(/alpha\(opacity=(.*)\)/))  
  53      if(opacity[1]) return parseFloat(opacity[1]) / 100;  
  54    return 1.0;  
  55  }
  56  
  57  Element.setOpacity = function(element, value){  
  58    element= $(element);  
  59    if (value == 1){
  60      Element.setStyle(element, { opacity: 
  61        (/Gecko/.test(navigator.userAgent) && !/Konqueror|Safari|KHTML/.test(navigator.userAgent)) ? 
  62        0.999999 : null });
  63      if(/MSIE/.test(navigator.userAgent))  
  64        Element.setStyle(element, {filter: Element.getStyle(element,'filter').replace(/alpha\([^\)]*\)/gi,'')});  
  65    } else {  
  66      if(value < 0.00001) value = 0;  
  67      Element.setStyle(element, {opacity: value});
  68      if(/MSIE/.test(navigator.userAgent))  
  69       Element.setStyle(element, 
  70         { filter: Element.getStyle(element,'filter').replace(/alpha\([^\)]*\)/gi,'') +
  71                   'alpha(opacity='+value*100+')' });  
  72    }
  73  }  
  74   
  75  Element.getInlineOpacity = function(element){  
  76    return $(element).style.opacity || '';
  77  }  
  78  
  79  Element.childrenWithClassName = function(element, className, findFirst) {
  80    var classNameRegExp = new RegExp("(^|\\s)" + className + "(\\s|$)");
  81    var results = $A($(element).getElementsByTagName('*'))[findFirst ? 'detect' : 'select']( function(c) { 
  82      return (c.className && c.className.match(classNameRegExp));
  83    });
  84    if(!results) results = [];
  85    return results;
  86  }
  87  
  88  Element.forceRerendering = function(element) {
  89    try {
  90      element = $(element);
  91      var n = document.createTextNode(' ');
  92      element.appendChild(n);
  93      element.removeChild(n);
  94    } catch(e) { }
  95  };
  96  
  97  /*--------------------------------------------------------------------------*/
  98  
  99  Array.prototype.call = function() {
 100    var args = arguments;
 101    this.each(function(f){ f.apply(this, args) });
 102  }
 103  
 104  /*--------------------------------------------------------------------------*/
 105  
 106  var Effect = {
 107    tagifyText: function(element) {
 108      if(typeof Builder == 'undefined')
 109        throw("Effect.tagifyText requires including script.aculo.us' builder.js library");
 110        
 111      var tagifyStyle = 'position:relative';
 112      if(/MSIE/.test(navigator.userAgent)) tagifyStyle += ';zoom:1';
 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              Builder.node('span',{style: tagifyStyle},
 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          (typeof element == 'function')) && 
 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) {
 151      element = $(element);
 152      effect = (effect || 'appear').toLowerCase();
 153      var options = Object.extend({
 154        queue: { position:'end', scope:(element.id || 'global'), limit: 1 }
 155      }, arguments[2] || {});
 156      Effect[element.visible() ? 
 157        Effect.PAIRS[effect][1] : Effect.PAIRS[effect][0]](element, options);
 158    }
 159  };
 160  
 161  var Effect2 = Effect; // deprecated
 162  
 163  /* ------------- transitions ------------- */
 164  
 165  Effect.Transitions = {}
 166  
 167  Effect.Transitions.linear = Prototype.K;
 168  
 169  Effect.Transitions.sinoidal = function(pos) {
 170    return (-Math.cos(pos*Math.PI)/2) + 0.5;
 171  }
 172  Effect.Transitions.reverse  = function(pos) {
 173    return 1-pos;
 174  }
 175  Effect.Transitions.flicker = function(pos) {
 176    return ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4;
 177  }
 178  Effect.Transitions.wobble = function(pos) {
 179    return (-Math.cos(pos*Math.PI*(9*pos))/2) + 0.5;
 180  }
 181  Effect.Transitions.pulse = function(pos) {
 182    return (Math.floor(pos*10) % 2 == 0 ? 
 183      (pos*10-Math.floor(pos*10)) : 1-(pos*10-Math.floor(pos*10)));
 184  }
 185  Effect.Transitions.none = function(pos) {
 186    return 0;
 187  }
 188  Effect.Transitions.full = function(pos) {
 189    return 1;
 190  }
 191  
 192  /* ------------- core effects ------------- */
 193  
 194  Effect.ScopedQueue = Class.create();
 195  Object.extend(Object.extend(Effect.ScopedQueue.prototype, Enumerable), {
 196    initialize: function() {
 197      this.effects  = [];
 198      this.interval = null;
 199    },
 200    _each: function(iterator) {
 201      this.effects._each(iterator);
 202    },
 203    add: function(effect) {
 204      var timestamp = new Date().getTime();
 205      
 206      var position = (typeof effect.options.queue == 'string') ? 
 207        effect.options.queue : effect.options.queue.position;
 208      
 209      switch(position) {
 210        case 'front':
 211          // move unstarted effects after this effect  
 212          this.effects.findAll(function(e){ return e.state=='idle' }).each( function(e) {
 213              e.startOn  += effect.finishOn;
 214              e.finishOn += effect.finishOn;
 215            });
 216          break;
 217        case 'end':
 218          // start effect after last queued effect has finished
 219          timestamp = this.effects.pluck('finishOn').max() || timestamp;
 220          break;
 221      }
 222      
 223      effect.startOn  += timestamp;
 224      effect.finishOn += timestamp;
 225  
 226      if(!effect.options.queue.limit || (this.effects.length < effect.options.queue.limit))
 227        this.effects.push(effect);
 228      
 229      if(!this.interval) 
 230        this.interval = setInterval(this.loop.bind(this), 40);
 231    },
 232    remove: function(effect) {
 233      this.effects = this.effects.reject(function(e) { return e==effect });
 234      if(this.effects.length == 0) {
 235        clearInterval(this.interval);
 236        this.interval = null;
 237      }
 238    },
 239    loop: function() {
 240      var timePos = new Date().getTime();
 241      this.effects.invoke('loop', timePos);
 242    }
 243  });
 244  
 245  Effect.Queues = {
 246    instances: $H(),
 247    get: function(queueName) {
 248      if(typeof queueName != 'string') return queueName;
 249      
 250      if(!this.instances[queueName])
 251        this.instances[queueName] = new Effect.ScopedQueue();
 252        
 253      return this.instances[queueName];
 254    }
 255  }
 256  Effect.Queue = Effect.Queues.get('global');
 257  
 258  Effect.DefaultOptions = {
 259    transition: Effect.Transitions.sinoidal,
 260    duration:   1.0,   // seconds
 261    fps:        25.0,  // max. 25fps due to Effect.Queue implementation
 262    sync:       false, // true for combining
 263    from:       0.0,
 264    to:         1.0,
 265    delay:      0.0,
 266    queue:      'parallel'
 267  }
 268  
 269  Effect.Base = function() {};
 270  Effect.Base.prototype = {
 271    position: null,
 272    start: function(options) {
 273      this.options      = Object.extend(Object.extend({},Effect.DefaultOptions), options || {});
 274      this.currentFrame = 0;
 275      this.state        = 'idle';
 276      this.startOn      = this.options.delay*1000;
 277      this.finishOn     = this.startOn + (this.options.duration*1000);
 278      this.event('beforeStart');
 279      if(!this.options.sync)
 280        Effect.Queues.get(typeof this.options.queue == 'string' ? 
 281          'global' : this.options.queue.scope).add(this);
 282    },
 283    loop: function(timePos) {
 284      if(timePos >= this.startOn) {
 285        if(timePos >= this.finishOn) {
 286          this.render(1.0);
 287          this.cancel();
 288          this.event('beforeFinish');
 289          if(this.finish) this.finish(); 
 290          this.event('afterFinish');
 291          return;  
 292        }
 293        var pos   = (timePos - this.startOn) / (this.finishOn - this.startOn);
 294        var frame = Math.round(pos * this.options.fps * this.options.duration);
 295        if(frame > this.currentFrame) {
 296          this.render(pos);
 297          this.currentFrame = frame;
 298        }
 299      }
 300    },
 301    render: function(pos) {
 302      if(this.state == 'idle') {
 303        this.state = 'running';
 304        this.event('beforeSetup');
 305        if(this.setup) this.setup();
 306        this.event('afterSetup');
 307      }
 308      if(this.state == 'running') {
 309        if(this.options.transition) pos = this.options.transition(pos);
 310        pos *= (this.options.to-this.options.from);
 311        pos += this.options.from;
 312        this.position = pos;
 313        this.event('beforeUpdate');
 314        if(this.update) this.update(pos);
 315        this.event('afterUpdate');
 316      }
 317    },
 318    cancel: function() {
 319      if(!this.options.sync)
 320        Effect.Queues.get(typeof this.options.queue == 'string' ? 
 321          'global' : this.options.queue.scope).remove(this);
 322      this.state = 'finished';
 323    },
 324    event: function(eventName) {
 325      if(this.options[eventName + 'Internal']) this.options[eventName + 'Internal'](this);
 326      if(this.options[eventName]) this.options[eventName](this);
 327    },
 328    inspect: function() {
 329      return '#<Effect:' + $H(this).inspect() + ',options:' + $H(this.options).inspect() + '>';
 330    }
 331  }
 332  
 333  Effect.Parallel = Class.create();
 334  Object.extend(Object.extend(Effect.Parallel.prototype, Effect.Base.prototype), {
 335    initialize: function(effects) {
 336      this.effects = effects || [];
 337      this.start(arguments[1]);
 338    },
 339    update: function(position) {
 340      this.effects.invoke('render', position);
 341    },
 342    finish: function(position) {
 343      this.effects.each( function(effect) {
 344        effect.render(1.0);
 345        effect.cancel();
 346        effect.event('beforeFinish');
 347        if(effect.finish) effect.finish(position);
 348        effect.event('afterFinish');
 349      });
 350    }
 351  });
 352  
 353  Effect.Opacity = Class.create();
 354  Object.extend(Object.extend(Effect.Opacity.prototype, Effect.Base.prototype), {
 355    initialize: function(element) {
 356      this.element = $(element);
 357      // make this work on IE on elements without 'layout'
 358      if(/MSIE/.test(navigator.userAgent) && (!this.element.currentStyle.hasLayout))
 359        this.element.setStyle({zoom: 1});
 360      var options = Object.extend({
 361        from: this.element.getOpacity() || 0.0,
 362        to:   1.0
 363      }, arguments[1] || {});
 364      this.start(options);
 365    },
 366    update: function(position) {
 367      this.element.setOpacity(position);
 368    }
 369  });
 370  
 371  Effect.Move = Class.create();
 372  Object.extend(Object.extend(Effect.Move.prototype, Effect.Base.prototype), {
 373    initialize: function(element) {
 374      this.element = $(element);
 375      var options = Object.extend({
 376        x:    0,
 377        y:    0,
 378        mode: 'relative'
 379      }, arguments[1] || {});
 380      this.start(options);
 381    },
 382    setup: function() {
 383      // Bug in Opera: Opera returns the "real" position of a static element or
 384      // relative element that does not have top/left explicitly set.
 385      // ==> Always set top and left for position relative elements in your stylesheets 
 386      // (to 0 if you do not need them) 
 387      this.element.makePositioned();
 388      this.originalLeft = parseFloat(this.element.getStyle('left') || '0');
 389      this.originalTop  = parseFloat(this.element.getStyle('top')  || '0');
 390      if(this.options.mode == 'absolute') {
 391        // absolute movement, so we need to calc deltaX and deltaY
 392        this.options.x = this.options.x - this.originalLeft;
 393        this.options.y = this.options.y - this.originalTop;
 394      }
 395    },
 396    update: function(position) {
 397      this.element.setStyle({
 398        left: Math.round(this.options.x  * position + this.originalLeft) + 'px',
 399        top:  Math.round(this.options.y  * position + this.originalTop)  + 'px'
 400      });
 401    }
 402  });
 403  
 404  // for backwards compatibility
 405  Effect.MoveBy = function(element, toTop, toLeft) {
 406    return new Effect.Move(element, 
 407      Object.extend({ x: toLeft, y: toTop }, arguments[3] || {}));
 408  };
 409  
 410  Effect.Scale = Class.create();
 411  Object.extend(Object.extend(Effect.Scale.prototype, Effect.Base.prototype), {
 412    initialize: function(element, percent) {
 413      this.element = $(element)
 414      var options = Object.extend({
 415        scaleX: true,
 416        scaleY: true,
 417        scaleContent: true,
 418        scaleFromCenter: false,
 419        scaleMode: 'box',        // 'box' or 'contents' or {} with provided values
 420        scaleFrom: 100.0,
 421        scaleTo:   percent
 422      }, arguments[2] || {});
 423      this.start(options);
 424    },
 425    setup: function() {
 426      this.restoreAfterFinish = this.options.restoreAfterFinish || false;
 427      this.elementPositioning = this.element.getStyle('position');
 428      
 429      this.originalStyle = {};
 430      ['top','left','width','height','fontSize'].each( function(k) {
 431        this.originalStyle[k] = this.element.style[k];
 432      }.bind(this));
 433        
 434      this.originalTop  = this.element.offsetTop;
 435      this.originalLeft = this.element.offsetLeft;
 436      
 437      var fontSize = this.element.getStyle('font-size') || '100%';
 438      ['em','px','%','pt'].each( function(fontSizeType) {
 439        if(fontSize.indexOf(fontSizeType)>0) {
 440          this.fontSize     = parseFloat(fontSize);
 441          this.fontSizeType = fontSizeType;
 442        }
 443      }.bind(this));
 444      
 445      this.factor = (this.options.scaleTo - this.options.scaleFrom)/100;
 446      
 447      this.dims = null;
 448      if(this.options.scaleMode=='box')
 449        this.dims = [this.element.offsetHeight, this.element.offsetWidth];
 450      if(/^content/.test(this.options.scaleMode))
 451        this.dims = [this.element.scrollHeight, this.element.scrollWidth];
 452      if(!this.dims)
 453        this.dims = [this.options.scaleMode.originalHeight,
 454                     this.options.scaleMode.originalWidth];
 455    },
 456    update: function(position) {
 457      var currentScale = (this.options.scaleFrom/100.0) + (this.factor * position);
 458      if(this.options.scaleContent && this.fontSize)
 459        this.element.setStyle({fontSize: this.fontSize * currentScale + this.fontSizeType });
 460      this.setDimensions(this.dims[0] * currentScale, this.dims[1] * currentScale);
 461    },
 462    finish: function(position) {
 463      if (this.restoreAfterFinish) this.element.setStyle(this.originalStyle);
 464    },
 465    setDimensions: function(height, width) {
 466      var d = {};
 467      if(this.options.scaleX) d.width = Math.round(width) + 'px';
 468      if(this.options.scaleY) d.height = Math.round(height) + 'px';
 469      if(this.options.scaleFromCenter) {
 470        var topd  = (height - this.dims[0])/2;
 471        var leftd = (width  - this.dims[1])/2;
 472        if(this.elementPositioning == 'absolute') {
 473          if(this.options.scaleY) d.top = this.originalTop-topd + 'px';
 474          if(this.options.scaleX) d.left = this.originalLeft-leftd + 'px';
 475        } else {
 476          if(this.options.scaleY) d.top = -topd + 'px';
 477          if(this.options.scaleX) d.left = -leftd + 'px';
 478        }
 479      }
 480      this.element.setStyle(d);
 481    }
 482  });
 483  
 484  Effect.Highlight = Class.create();
 485  Object.extend(Object.extend(Effect.Highlight.prototype, Effect.Base.prototype), {
 486    initialize: function(element) {
 487      this.element = $(element);
 488      var options = Object.extend({ startcolor: '#ffff99' }, arguments[1] || {});
 489      this.start(options);
 490    },
 491    setup: function() {
 492      // Prevent executing on elements not in the layout flow
 493      if(this.element.getStyle('display')=='none') { this.cancel(); return; }
 494      // Disable background image during the effect
 495      this.oldStyle = {
 496        backgroundImage: this.element.getStyle('background-image') };
 497      this.element.setStyle({backgroundImage: 'none'});
 498      if(!this.options.endcolor)
 499        this.options.endcolor = this.element.getStyle('background-color').parseColor('#ffffff');
 500      if(!this.options.restorecolor)
 501        this.options.restorecolor = this.element.getStyle('background-color');
 502      // init color calculations
 503      this._base  = $R(0,2).map(function(i){ return parseInt(this.options.startcolor.slice(i*2+1,i*2+3),16) }.bind(this));
 504      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));
 505    },
 506    update: function(position) {
 507      this.element.setStyle({backgroundColor: $R(0,2).inject('#',function(m,v,i){
 508        return m+(Math.round(this._base[i]+(this._delta[i]*position)).toColorPart()); }.bind(this)) });
 509    },
 510    finish: function() {
 511      this.element.setStyle(Object.extend(this.oldStyle, {
 512        backgroundColor: this.options.restorecolor
 513      }));
 514    }
 515  });
 516  
 517  Effect.ScrollTo = Class.create();
 518  Object.extend(Object.extend(Effect.ScrollTo.prototype, Effect.Base.prototype), {
 519    initialize: function(element) {
 520      this.element = $(element);
 521      this.start(arguments[1] || {});
 522    },
 523    setup: function() {
 524      Position.prepare();
 525      var offsets = Position.cumulativeOffset(this.element);
 526      if(this.options.offset) offsets[1] += this.options.offset;
 527      var max = window.innerHeight ? 
 528        window.height - window.innerHeight :
 529        document.body.scrollHeight - 
 530          (document.documentElement.clientHeight ? 
 531            document.documentElement.clientHeight : document.body.clientHeight);
 532      this.scrollStart = Position.deltaY;
 533      this.delta = (offsets[1] > max ? max : offsets[1]) - this.scrollStart;
 534    },
 535    update: function(position) {
 536      Position.prepare();
 537      window.scrollTo(Position.deltaX, 
 538        this.scrollStart + (position*this.delta));
 539    }
 540  });
 541  
 542  /* ------------- combination effects ------------- */
 543  
 544  Effect.Fade = function(element) {
 545    element = $(element);
 546    var oldOpacity = element.getInlineOpacity();
 547    var options = Object.extend({
 548    from: element.getOpacity() || 1.0,
 549    to:   0.0,
 550    afterFinishInternal: function(effect) { 
 551      if(effect.options.to!=0) return;
 552      effect.element.hide();
 553      effect.element.setStyle({opacity: oldOpacity}); 
 554    }}, arguments[1] || {});
 555    return new Effect.Opacity(element,options);
 556  }
 557  
 558  Effect.Appear = function(element) {
 559    element = $(element);
 560    var options = Object.extend({
 561    from: (element.getStyle('display') == 'none' ? 0.0 : element.getOpacity() || 0.0),
 562    to:   1.0,
 563    // force Safari to render floated elements properly
 564    afterFinishInternal: function(effect) {
 565      effect.element.forceRerendering();
 566    },
 567    beforeSetup: function(effect) {
 568      effect.element.setOpacity(effect.options.from);
 569      effect.element.show(); 
 570    }}, arguments[1] || {});
 571    return new Effect.Opacity(element,options);
 572  }
 573  
 574  Effect.Puff = function(element) {
 575    element = $(element);
 576    var oldStyle = { opacity: element.getInlineOpacity(), position: element.getStyle('position') };
 577    return new Effect.Parallel(
 578     [ new Effect.Scale(element, 200, 
 579        { sync: true, scaleFromCenter: true, scaleContent: true, restoreAfterFinish: true }), 
 580       new Effect.Opacity(element, { sync: true, to: 0.0 } ) ], 
 581       Object.extend({ duration: 1.0, 
 582        beforeSetupInternal: function(effect) {
 583          effect.effects[0].element.setStyle({position: 'absolute'}); },
 584        afterFinishInternal: function(effect) {
 585           effect.effects[0].element.hide();
 586           effect.effects[0].element.setStyle(oldStyle); }
 587       }, arguments[1] || {})
 588     );
 589  }
 590  
 591  Effect.BlindUp = function(element) {
 592    element = $(element);
 593    element.makeClipping();
 594    return new Effect.Scale(element, 0,
 595      Object.extend({ scaleContent: false, 
 596        scaleX: false, 
 597        restoreAfterFinish: true,
 598        afterFinishInternal: function(effect) {
 599          effect.element.hide();
 600          effect.element.undoClipping();
 601        } 
 602      }, arguments[1] || {})
 603    );
 604  }
 605  
 606  Effect.BlindDown = function(element) {
 607    element = $(element);
 608    var elementDimensions = element.getDimensions();
 609    return new Effect.Scale(element, 100, Object.extend({ 
 610      scaleContent: false, 
 611      scaleX: false,
 612      scaleFrom: 0,
 613      scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
 614      restoreAfterFinish: true,
 615      afterSetup: function(effect) {
 616        effect.element.makeClipping();
 617        effect.element.setStyle({height: '0px'});
 618        effect.element.show(); 
 619      },  
 620      afterFinishInternal: function(effect) {
 621        effect.element.undoClipping();
 622      }
 623    }, arguments[1] || {}));
 624  }
 625  
 626  Effect.SwitchOff = function(element) {
 627    element = $(element);
 628    var oldOpacity = element.getInlineOpacity();
 629    return new Effect.Appear(element, Object.extend({
 630      duration: 0.4,
 631      from: 0,
 632      transition: Effect.Transitions.flicker,
 633      afterFinishInternal: function(effect) {
 634        new Effect.Scale(effect.element, 1, { 
 635          duration: 0.3, scaleFromCenter: true,
 636          scaleX: false, scaleContent: false, restoreAfterFinish: true,
 637          beforeSetup: function(effect) { 
 638            effect.element.makePositioned();
 639            effect.element.makeClipping();
 640          },
 641          afterFinishInternal: function(effect) {
 642            effect.element.hide();
 643            effect.element.undoClipping();
 644            effect.element.undoPositioned();
 645            effect.element.setStyle({opacity: oldOpacity});
 646          }
 647        })
 648      }
 649    }, arguments[1] || {}));
 650  }
 651  
 652  Effect.DropOut = function(element) {
 653    element = $(element);
 654    var oldStyle = {
 655      top: element.getStyle('top'),
 656      left: element.getStyle('left'),
 657      opacity: element.getInlineOpacity() };
 658    return new Effect.Parallel(
 659      [ new Effect.Move(element, {x: 0, y: 100, sync: true }), 
 660        new Effect.Opacity(element, { sync: true, to: 0.0 }) ],
 661      Object.extend(
 662        { duration: 0.5,
 663          beforeSetup: function(effect) {
 664            effect.effects[0].element.makePositioned(); 
 665          },
 666          afterFinishInternal: function(effect) {
 667            effect.effects[0].element.hide();
 668            effect.effects[0].element.undoPositioned();
 669            effect.effects[0].element.setStyle(oldStyle);
 670          } 
 671        }, arguments[1] || {}));
 672  }
 673  
 674  Effect.Shake = function(element) {
 675    element = $(element);
 676    var oldStyle = {
 677      top: element.getStyle('top'),
 678      left: element.getStyle('left') };
 679      return new Effect.Move(element, 
 680        { x:  20, y: 0, duration: 0.05, afterFinishInternal: function(effect) {
 681      new Effect.Move(effect.element,
 682        { x: -40, y: 0, duration: 0.1,  afterFinishInternal: function(effect) {
 683      new Effect.Move(effect.element,
 684        { x:  40, y: 0, duration: 0.1,  afterFinishInternal: function(effect) {
 685      new Effect.Move(effect.element,
 686        { x: -40, y: 0, duration: 0.1,  afterFinishInternal: function(effect) {
 687      new Effect.Move(effect.element,
 688        { x:  40, y: 0, duration: 0.1,  afterFinishInternal: function(effect) {
 689      new Effect.Move(effect.element,
 690        { x: -20, y: 0, duration: 0.05, afterFinishInternal: function(effect) {
 691          effect.element.undoPositioned();
 692          effect.element.setStyle(oldStyle);
 693    }}) }}) }}) }}) }}) }});
 694  }
 695  
 696  Effect.SlideDown = function(element) {
 697    element = $(element);
 698    element.cleanWhitespace();
 699    // SlideDown need to have the content of the element wrapped in a container element with fixed height!
 700    var oldInnerBottom = $(element.firstChild).getStyle('bottom');
 701    var elementDimensions = element.getDimensions();
 702    return new Effect.Scale(element, 100, Object.extend({ 
 703      scaleContent: false, 
 704      scaleX: false, 
 705      scaleFrom: window.opera ? 0 : 1,
 706      scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
 707      restoreAfterFinish: true,
 708      afterSetup: function(effect) {
 709        effect.element.makePositioned();
 710        effect.element.firstChild.makePositioned();
 711        if(window.opera) effect.element.setStyle({top: ''});
 712        effect.element.makeClipping();
 713        effect.element.setStyle({height: '0px'});
 714        effect.element.show(); },
 715      afterUpdateInternal: function(effect) {
 716        effect.element.firstChild.setStyle({bottom:
 717          (effect.dims[0] - effect.element.clientHeight) + 'px' }); 
 718      },
 719      afterFinishInternal: function(effect) {
 720        effect.element.undoClipping(); 
 721        // IE will crash if child is undoPositioned first
 722        if(/MSIE/.test(navigator.userAgent)){
 723          effect.element.undoPositioned();
 724          effect.element.firstChild.undoPositioned();
 725        }else{
 726          effect.element.firstChild.undoPositioned();
 727          effect.element.undoPositioned();
 728        }
 729        effect.element.firstChild.setStyle({bottom: oldInnerBottom}); }
 730      }, arguments[1] || {})
 731    );
 732  }
 733  
 734  Effect.SlideUp = function(element) {
 735    element = $(element);
 736    element.cleanWhitespace();
 737    var oldInnerBottom = $(element.firstChild).getStyle('bottom');
 738    return new Effect.Scale(element, window.opera ? 0 : 1,
 739     Object.extend({ scaleContent: false, 
 740      scaleX: false, 
 741      scaleMode: 'box',
 742      scaleFrom: 100,
 743      restoreAfterFinish: true,
 744      beforeStartInternal: function(effect) {
 745        effect.element.makePositioned();
 746        effect.element.firstChild.makePositioned();
 747        if(window.opera) effect.element.setStyle({top: ''});
 748        effect.element.makeClipping();
 749        effect.element.show(); },  
 750      afterUpdateInternal: function(effect) {
 751        effect.element.firstChild.setStyle({bottom:
 752          (effect.dims[0] - effect.element.clientHeight) + 'px' }); },
 753      afterFinishInternal: function(effect) {
 754        effect.element.hide();
 755        effect.element.undoClipping();
 756        effect.element.firstChild.undoPositioned();
 757        effect.element.undoPositioned();
 758        effect.element.setStyle({bottom: oldInnerBottom}); }
 759     }, arguments[1] || {})
 760    );
 761  }
 762  
 763  // Bug in opera makes the TD containing this element expand for a instance after finish 
 764  Effect.Squish = function(element) {
 765    return new Effect.Scale(element, window.opera ? 1 : 0, 
 766      { restoreAfterFinish: true,
 767        beforeSetup: function(effect) {
 768          effect.element.makeClipping(effect.element); },  
 769        afterFinishInternal: function(effect) {
 770          effect.element.hide(effect.element); 
 771          effect.element.undoClipping(effect.element); }
 772    });
 773  }
 774  
 775  Effect.Grow = function(element) {
 776    element = $(element);
 777    var options = Object.extend({
 778      direction: 'center',
 779      moveTransition: Effect.Transitions.sinoidal,
 780      scaleTransition: Effect.Transitions.sinoidal,
 781      opacityTransition: Effect.Transitions.full
 782    }, arguments[1] || {});
 783    var oldStyle = {
 784      top: element.style.top,
 785      left: element.style.left,
 786      height: element.style.height,
 787      width: element.style.width,
 788      opacity: element.getInlineOpacity() };
 789  
 790    var dims = element.getDimensions();    
 791    var initialMoveX, initialMoveY;
 792    var moveX, moveY;
 793    
 794    switch (options.direction) {
 795      case 'top-left':
 796        initialMoveX = initialMoveY = moveX = moveY = 0; 
 797        break;
 798      case 'top-right':
 799        initialMoveX = dims.width;
 800        initialMoveY = moveY = 0;
 801        moveX = -dims.width;
 802        break;
 803      case 'bottom-left':
 804        initialMoveX = moveX = 0;
 805        initialMoveY = dims.height;
 806        moveY = -dims.height;
 807        break;
 808      case 'bottom-right':
 809        initialMoveX = dims.width;
 810        initialMoveY = dims.height;
 811        moveX = -dims.width;
 812        moveY = -dims.height;
 813        break;
 814      case 'center':
 815        initialMoveX = dims.width / 2;
 816        initialMoveY = dims.height / 2;
 817        moveX = -dims.width / 2;
 818        moveY = -dims.height / 2;
 819        break;
 820    }
 821    
 822    return new Effect.Move(element, {
 823      x: initialMoveX,
 824      y: initialMoveY,
 825      duration: 0.01, 
 826      beforeSetup: function(effect) {
 827        effect.element.hide();
 828        effect.element.makeClipping();
 829        effect.element.makePositioned();
 830      },
 831      afterFinishInternal: function(effect) {
 832        new Effect.Parallel(
 833          [ new Effect.Opacity(effect.element, { sync: true, to: 1.0, from: 0.0, transition: options.opacityTransition }),
 834            new Effect.Move(effect.element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition }),
 835            new Effect.Scale(effect.element, 100, {
 836              scaleMode: { originalHeight: dims.height, originalWidth: dims.width }, 
 837              sync: true, scaleFrom: window.opera ? 1 : 0, transition: options.scaleTransition, restoreAfterFinish: true})
 838          ], Object.extend({
 839               beforeSetup: function(effect) {
 840                 effect.effects[0].element.setStyle({height: '0px'});
 841                 effect.effects[0].element.show(); 
 842               },
 843               afterFinishInternal: function(effect) {
 844                 effect.effects[0].element.undoClipping();
 845                 effect.effects[0].element.undoPositioned();
 846                 effect.effects[0].element.setStyle(oldStyle); 
 847               }
 848             }, options)
 849        )
 850      }
 851    });
 852  }
 853  
 854  Effect.Shrink = function(element) {
 855    element = $(element);
 856    var options = Object.extend({
 857      direction: 'center',
 858      moveTransition: Effect.Transitions.sinoidal,
 859      scaleTransition: Effect.Transitions.sinoidal,
 860      opacityTransition: Effect.Transitions.none
 861    }, arguments[1] || {});
 862    var oldStyle = {
 863      top: element.style.top,
 864      left: element.style.left,
 865      height: element.style.height,
 866      width: element.style.width,
 867      opacity: element.getInlineOpacity() };
 868  
 869    var dims = element.getDimensions();
 870    var moveX, moveY;
 871    
 872    switch (options.direction) {
 873      case 'top-left':
 874        moveX = moveY = 0;
 875        break;
 876      case 'top-right':
 877        moveX = dims.width;
 878        moveY = 0;
 879        break;
 880      case 'bottom-left':
 881        moveX = 0;
 882        moveY = dims.height;
 883        break;
 884      case 'bottom-right':
 885        moveX = dims.width;
 886        moveY = dims.height;
 887        break;
 888      case 'center':  
 889        moveX = dims.width / 2;
 890        moveY = dims.height / 2;
 891        break;
 892    }
 893    
 894    return new Effect.Parallel(
 895      [ new Effect.Opacity(element, { sync: true, to: 0.0, from: 1.0, transition: options.opacityTransition }),
 896        new Effect.Scale(element, window.opera ? 1 : 0, { sync: true, transition: options.scaleTransition, restoreAfterFinish: true}),
 897        new Effect.Move(element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition })
 898      ], Object.extend({            
 899           beforeStartInternal: function(effect) {
 900             effect.effects[0].element.makePositioned();
 901             effect.effects[0].element.makeClipping(); },
 902           afterFinishInternal: function(effect) {
 903             effect.effects[0].element.hide();
 904             effect.effects[0].element.undoClipping();
 905             effect.effects[0].element.undoPositioned();
 906             effect.effects[0].element.setStyle(oldStyle); }
 907         }, options)
 908    );
 909  }
 910  
 911  Effect.Pulsate = function(element) {
 912    element = $(element);
 913    var options    = arguments[1] || {};
 914    var oldOpacity = element.getInlineOpacity();
 915    var transition = options.transition || Effect.Transitions.sinoidal;
 916    var reverser   = function(pos){ return transition(1-Effect.Transitions.pulse(pos)) };
 917    reverser.bind(transition);
 918    return new Effect.Opacity(element, 
 919      Object.extend(Object.extend({  duration: 3.0, from: 0,
 920        afterFinishInternal: function(effect) { effect.element.setStyle({opacity: oldOpacity}); }
 921      }, options), {transition: reverser}));
 922  }
 923  
 924  Effect.Fold = function(element) {
 925    element = $(element);
 926    var oldStyle = {
 927      top: element.style.top,
 928      left: element.style.left,
 929      width: element.style.width,
 930      height: element.style.height };
 931    Element.makeClipping(element);
 932    return new Effect.Scale(element, 5, Object.extend({   
 933      scaleContent: false,
 934      scaleX: false,
 935      afterFinishInternal: function(effect) {
 936      new Effect.Scale(element, 1, { 
 937        scaleContent: false, 
 938        scaleY: false,
 939        afterFinishInternal: function(effect) {
 940          effect.element.hide();
 941          effect.element.undoClipping(); 
 942          effect.element.setStyle(oldStyle);
 943        } });
 944    }}, arguments[1] || {}));
 945  };
 946  
 947  ['setOpacity','getOpacity','getInlineOpacity','forceRerendering','setContentZoom',
 948   'collectTextNodes','collectTextNodesIgnoreClass','childrenWithClassName'].each( 
 949    function(f) { Element.Methods[f] = Element[f]; }
 950  );
 951  
 952  Element.Methods.visualEffect = function(element, effect, options) {
 953    s = effect.gsub(/_/, '-').camelize();
 954    effect_class = s.charAt(0).toUpperCase() + s.substring(1);
 955    new Effect[effect_class](element, options);
 956    return $(element);
 957  };
 958  
 959  Element.addMethods();
 960