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diff --git a/assignment1/materials/Environmental Impact Assessment Course Module » 1-5 Key elements of the EIA process_files/effects.js b/assignment1/materials/Environmental Impact Assessment Course Module » 1-5 Key elements of the EIA process_files/effects.js new file mode 100644 index 0000000..b8c0259 --- /dev/null +++ b/assignment1/materials/Environmental Impact Assessment Course Module » 1-5 Key elements of the EIA process_files/effects.js @@ -0,0 +1,1122 @@ +// script.aculo.us effects.js v1.8.1, Thu Jan 03 22:07:12 -0500 2008 + +// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us) +// Contributors: +// Justin Palmer (http://encytemedia.com/) +// Mark Pilgrim (http://diveintomark.org/) +// Martin Bialasinki +// +// script.aculo.us is freely distributable under the terms of an MIT-style license. +// For details, see the script.aculo.us web site: http://script.aculo.us/ + +// converts rgb() and #xxx to #xxxxxx format, +// returns self (or first argument) if not convertable +String.prototype.parseColor = function() { + var color = '#'; + if (this.slice(0,4) == 'rgb(') { + var cols = this.slice(4,this.length-1).split(','); + var i=0; do { color += parseInt(cols[i]).toColorPart() } while (++i<3); + } else { + if (this.slice(0,1) == '#') { + if (this.length==4) for(var i=1;i<4;i++) color += (this.charAt(i) + this.charAt(i)).toLowerCase(); + if (this.length==7) color = this.toLowerCase(); + } + } + return (color.length==7 ? color : (arguments[0] || this)); +}; + +/*--------------------------------------------------------------------------*/ + +Element.collectTextNodes = function(element) { + return $A($(element).childNodes).collect( function(node) { + return (node.nodeType==3 ? node.nodeValue : + (node.hasChildNodes() ? Element.collectTextNodes(node) : '')); + }).flatten().join(''); +}; + +Element.collectTextNodesIgnoreClass = function(element, className) { + return $A($(element).childNodes).collect( function(node) { + return (node.nodeType==3 ? node.nodeValue : + ((node.hasChildNodes() && !Element.hasClassName(node,className)) ? + Element.collectTextNodesIgnoreClass(node, className) : '')); + }).flatten().join(''); +}; + +Element.setContentZoom = function(element, percent) { + element = $(element); + element.setStyle({fontSize: (percent/100) + 'em'}); + if (Prototype.Browser.WebKit) window.scrollBy(0,0); + return element; +}; + +Element.getInlineOpacity = function(element){ + return $(element).style.opacity || ''; +}; + +Element.forceRerendering = function(element) { + try { + element = $(element); + var n = document.createTextNode(' '); + element.appendChild(n); + element.removeChild(n); + } catch(e) { } +}; + +/*--------------------------------------------------------------------------*/ + +var Effect = { + _elementDoesNotExistError: { + name: 'ElementDoesNotExistError', + message: 'The specified DOM element does not exist, but is required for this effect to operate' + }, + Transitions: { + linear: Prototype.K, + sinoidal: function(pos) { + return (-Math.cos(pos*Math.PI)/2) + 0.5; + }, + reverse: function(pos) { + return 1-pos; + }, + flicker: function(pos) { + var pos = ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4; + return pos > 1 ? 1 : pos; + }, + wobble: function(pos) { + return (-Math.cos(pos*Math.PI*(9*pos))/2) + 0.5; + }, + pulse: function(pos, pulses) { + pulses = pulses || 5; + return ( + ((pos % (1/pulses)) * pulses).round() == 0 ? + ((pos * pulses * 2) - (pos * pulses * 2).floor()) : + 1 - ((pos * pulses * 2) - (pos * pulses * 2).floor()) + ); + }, + spring: function(pos) { + return 1 - (Math.cos(pos * 4.5 * Math.PI) * Math.exp(-pos * 6)); + }, + none: function(pos) { + return 0; + }, + full: function(pos) { + return 1; + } + }, + DefaultOptions: { + duration: 1.0, // seconds + fps: 100, // 100= assume 66fps max. + sync: false, // true for combining + from: 0.0, + to: 1.0, + delay: 0.0, + queue: 'parallel' + }, + tagifyText: function(element) { + var tagifyStyle = 'position:relative'; + if (Prototype.Browser.IE) tagifyStyle += ';zoom:1'; + + element = $(element); + $A(element.childNodes).each( function(child) { + if (child.nodeType==3) { + child.nodeValue.toArray().each( function(character) { + element.insertBefore( + new Element('span', {style: tagifyStyle}).update( + character == ' ' ? String.fromCharCode(160) : character), + child); + }); + Element.remove(child); + } + }); + }, + multiple: function(element, effect) { + var elements; + if (((typeof element == 'object') || + Object.isFunction(element)) && + (element.length)) + elements = element; + else + elements = $(element).childNodes; + + var options = Object.extend({ + speed: 0.1, + delay: 0.0 + }, arguments[2] || { }); + var masterDelay = options.delay; + + $A(elements).each( function(element, index) { + new effect(element, Object.extend(options, { delay: index * options.speed + masterDelay })); + }); + }, + PAIRS: { + 'slide': ['SlideDown','SlideUp'], + 'blind': ['BlindDown','BlindUp'], + 'appear': ['Appear','Fade'] + }, + toggle: function(element, effect) { + element = $(element); + effect = (effect || 'appear').toLowerCase(); + var options = Object.extend({ + queue: { position:'end', scope:(element.id || 'global'), limit: 1 } + }, arguments[2] || { }); + Effect[element.visible() ? + Effect.PAIRS[effect][1] : Effect.PAIRS[effect][0]](element, options); + } +}; + +Effect.DefaultOptions.transition = Effect.Transitions.sinoidal; + +/* ------------- core effects ------------- */ + +Effect.ScopedQueue = Class.create(Enumerable, { + initialize: function() { + this.effects = []; + this.interval = null; + }, + _each: function(iterator) { + this.effects._each(iterator); + }, + add: function(effect) { + var timestamp = new Date().getTime(); + + var position = Object.isString(effect.options.queue) ? + effect.options.queue : effect.options.queue.position; + + switch(position) { + case 'front': + // move unstarted effects after this effect + this.effects.findAll(function(e){ return e.state=='idle' }).each( function(e) { + e.startOn += effect.finishOn; + e.finishOn += effect.finishOn; + }); + break; + case 'with-last': + timestamp = this.effects.pluck('startOn').max() || timestamp; + break; + case 'end': + // start effect after last queued effect has finished + timestamp = this.effects.pluck('finishOn').max() || timestamp; + break; + } + + effect.startOn += timestamp; + effect.finishOn += timestamp; + + if (!effect.options.queue.limit || (this.effects.length < effect.options.queue.limit)) + this.effects.push(effect); + + if (!this.interval) + this.interval = setInterval(this.loop.bind(this), 15); + }, + remove: function(effect) { + this.effects = this.effects.reject(function(e) { return e==effect }); + if (this.effects.length == 0) { + clearInterval(this.interval); + this.interval = null; + } + }, + loop: function() { + var timePos = new Date().getTime(); + for(var i=0, len=this.effects.length;i<len;i++) + this.effects[i] && this.effects[i].loop(timePos); + } +}); + +Effect.Queues = { + instances: $H(), + get: function(queueName) { + if (!Object.isString(queueName)) return queueName; + + return this.instances.get(queueName) || + this.instances.set(queueName, new Effect.ScopedQueue()); + } +}; +Effect.Queue = Effect.Queues.get('global'); + +Effect.Base = Class.create({ + position: null, + start: function(options) { + function codeForEvent(options,eventName){ + return ( + (options[eventName+'Internal'] ? 'this.options.'+eventName+'Internal(this);' : '') + + (options[eventName] ? 'this.options.'+eventName+'(this);' : '') + ); + } + if (options && options.transition === false) options.transition = Effect.Transitions.linear; + this.options = Object.extend(Object.extend({ },Effect.DefaultOptions), options || { }); + this.currentFrame = 0; + this.state = 'idle'; + this.startOn = this.options.delay*1000; + this.finishOn = this.startOn+(this.options.duration*1000); + this.fromToDelta = this.options.to-this.options.from; + this.totalTime = this.finishOn-this.startOn; + this.totalFrames = this.options.fps*this.options.duration; + + eval('this.render = function(pos){ '+ + 'if (this.state=="idle"){this.state="running";'+ + codeForEvent(this.options,'beforeSetup')+ + (this.setup ? 'this.setup();':'')+ + codeForEvent(this.options,'afterSetup')+ + '};if (this.state=="running"){'+ + 'pos=this.options.transition(pos)*'+this.fromToDelta+'+'+this.options.from+';'+ + 'this.position=pos;'+ + codeForEvent(this.options,'beforeUpdate')+ + (this.update ? 'this.update(pos);':'')+ + codeForEvent(this.options,'afterUpdate')+ + '}}'); + + this.event('beforeStart'); + if (!this.options.sync) + Effect.Queues.get(Object.isString(this.options.queue) ? + 'global' : this.options.queue.scope).add(this); + }, + loop: function(timePos) { + if (timePos >= this.startOn) { + if (timePos >= this.finishOn) { + this.render(1.0); + this.cancel(); + this.event('beforeFinish'); + if (this.finish) this.finish(); + this.event('afterFinish'); + return; + } + var pos = (timePos - this.startOn) / this.totalTime, + frame = (pos * this.totalFrames).round(); + if (frame > this.currentFrame) { + this.render(pos); + this.currentFrame = frame; + } + } + }, + cancel: function() { + if (!this.options.sync) + Effect.Queues.get(Object.isString(this.options.queue) ? + 'global' : this.options.queue.scope).remove(this); + this.state = 'finished'; + }, + event: function(eventName) { + if (this.options[eventName + 'Internal']) this.options[eventName + 'Internal'](this); + if (this.options[eventName]) this.options[eventName](this); + }, + inspect: function() { + var data = $H(); + for(property in this) + if (!Object.isFunction(this[property])) data.set(property, this[property]); + return '#<Effect:' + data.inspect() + ',options:' + $H(this.options).inspect() + '>'; + } +}); + +Effect.Parallel = Class.create(Effect.Base, { + initialize: function(effects) { + this.effects = effects || []; + this.start(arguments[1]); + }, + update: function(position) { + this.effects.invoke('render', position); + }, + finish: function(position) { + this.effects.each( function(effect) { + effect.render(1.0); + effect.cancel(); + effect.event('beforeFinish'); + if (effect.finish) effect.finish(position); + effect.event('afterFinish'); + }); + } +}); + +Effect.Tween = Class.create(Effect.Base, { + initialize: function(object, from, to) { + object = Object.isString(object) ? $(object) : object; + var args = $A(arguments), method = args.last(), + options = args.length == 5 ? args[3] : null; + this.method = Object.isFunction(method) ? method.bind(object) : + Object.isFunction(object[method]) ? object[method].bind(object) : + function(value) { object[method] = value }; + this.start(Object.extend({ from: from, to: to }, options || { })); + }, + update: function(position) { + this.method(position); + } +}); + +Effect.Event = Class.create(Effect.Base, { + initialize: function() { + this.start(Object.extend({ duration: 0 }, arguments[0] || { })); + }, + update: Prototype.emptyFunction +}); + +Effect.Opacity = Class.create(Effect.Base, { + initialize: function(element) { + this.element = $(element); + if (!this.element) throw(Effect._elementDoesNotExistError); + // make this work on IE on elements without 'layout' + if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout)) + this.element.setStyle({zoom: 1}); + var options = Object.extend({ + from: this.element.getOpacity() || 0.0, + to: 1.0 + }, arguments[1] || { }); + this.start(options); + }, + update: function(position) { + this.element.setOpacity(position); + } +}); + +Effect.Move = Class.create(Effect.Base, { + initialize: function(element) { + this.element = $(element); + if (!this.element) throw(Effect._elementDoesNotExistError); + var options = Object.extend({ + x: 0, + y: 0, + mode: 'relative' + }, arguments[1] || { }); + this.start(options); + }, + setup: function() { + this.element.makePositioned(); + this.originalLeft = parseFloat(this.element.getStyle('left') || '0'); + this.originalTop = parseFloat(this.element.getStyle('top') || '0'); + if (this.options.mode == 'absolute') { + this.options.x = this.options.x - this.originalLeft; + this.options.y = this.options.y - this.originalTop; + } + }, + update: function(position) { + this.element.setStyle({ + left: (this.options.x * position + this.originalLeft).round() + 'px', + top: (this.options.y * position + this.originalTop).round() + 'px' + }); + } +}); + +// for backwards compatibility +Effect.MoveBy = function(element, toTop, toLeft) { + return new Effect.Move(element, + Object.extend({ x: toLeft, y: toTop }, arguments[3] || { })); +}; + +Effect.Scale = Class.create(Effect.Base, { + initialize: function(element, percent) { + this.element = $(element); + if (!this.element) throw(Effect._elementDoesNotExistError); + var options = Object.extend({ + scaleX: true, + scaleY: true, + scaleContent: true, + scaleFromCenter: false, + scaleMode: 'box', // 'box' or 'contents' or { } with provided values + scaleFrom: 100.0, + scaleTo: percent + }, arguments[2] || { }); + this.start(options); + }, + setup: function() { + this.restoreAfterFinish = this.options.restoreAfterFinish || false; + this.elementPositioning = this.element.getStyle('position'); + + this.originalStyle = { }; + ['top','left','width','height','fontSize'].each( function(k) { + this.originalStyle[k] = this.element.style[k]; + }.bind(this)); + + this.originalTop = this.element.offsetTop; + this.originalLeft = this.element.offsetLeft; + + var fontSize = this.element.getStyle('font-size') || '100%'; + ['em','px','%','pt'].each( function(fontSizeType) { + if (fontSize.indexOf(fontSizeType)>0) { + this.fontSize = parseFloat(fontSize); + this.fontSizeType = fontSizeType; + } + }.bind(this)); + + this.factor = (this.options.scaleTo - this.options.scaleFrom)/100; + + this.dims = null; + if (this.options.scaleMode=='box') + this.dims = [this.element.offsetHeight, this.element.offsetWidth]; + if (/^content/.test(this.options.scaleMode)) + this.dims = [this.element.scrollHeight, this.element.scrollWidth]; + if (!this.dims) + this.dims = [this.options.scaleMode.originalHeight, + this.options.scaleMode.originalWidth]; + }, + update: function(position) { + var currentScale = (this.options.scaleFrom/100.0) + (this.factor * position); + if (this.options.scaleContent && this.fontSize) + this.element.setStyle({fontSize: this.fontSize * currentScale + this.fontSizeType }); + this.setDimensions(this.dims[0] * currentScale, this.dims[1] * currentScale); + }, + finish: function(position) { + if (this.restoreAfterFinish) this.element.setStyle(this.originalStyle); + }, + setDimensions: function(height, width) { + var d = { }; + if (this.options.scaleX) d.width = width.round() + 'px'; + if (this.options.scaleY) d.height = height.round() + 'px'; + if (this.options.scaleFromCenter) { + var topd = (height - this.dims[0])/2; + var leftd = (width - this.dims[1])/2; + if (this.elementPositioning == 'absolute') { + if (this.options.scaleY) d.top = this.originalTop-topd + 'px'; + if (this.options.scaleX) d.left = this.originalLeft-leftd + 'px'; + } else { + if (this.options.scaleY) d.top = -topd + 'px'; + if (this.options.scaleX) d.left = -leftd + 'px'; + } + } + this.element.setStyle(d); + } +}); + +Effect.Highlight = Class.create(Effect.Base, { + initialize: function(element) { + this.element = $(element); + if (!this.element) throw(Effect._elementDoesNotExistError); + var options = Object.extend({ startcolor: '#ffff99' }, arguments[1] || { }); + this.start(options); + }, + setup: function() { + // Prevent executing on elements not in the layout flow + if (this.element.getStyle('display')=='none') { this.cancel(); return; } + // Disable background image during the effect + this.oldStyle = { }; + if (!this.options.keepBackgroundImage) { + this.oldStyle.backgroundImage = this.element.getStyle('background-image'); + this.element.setStyle({backgroundImage: 'none'}); + } + if (!this.options.endcolor) + this.options.endcolor = this.element.getStyle('background-color').parseColor('#ffffff'); + if (!this.options.restorecolor) + this.options.restorecolor = this.element.getStyle('background-color'); + // init color calculations + this._base = $R(0,2).map(function(i){ return parseInt(this.options.startcolor.slice(i*2+1,i*2+3),16) }.bind(this)); + 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)); + }, + update: function(position) { + this.element.setStyle({backgroundColor: $R(0,2).inject('#',function(m,v,i){ + return m+((this._base[i]+(this._delta[i]*position)).round().toColorPart()); }.bind(this)) }); + }, + finish: function() { + this.element.setStyle(Object.extend(this.oldStyle, { + backgroundColor: this.options.restorecolor + })); + } +}); + +Effect.ScrollTo = function(element) { + var options = arguments[1] || { }, + scrollOffsets = document.viewport.getScrollOffsets(), + elementOffsets = $(element).cumulativeOffset(), + max = (window.height || document.body.scrollHeight) - document.viewport.getHeight(); + + if (options.offset) elementOffsets[1] += options.offset; + + return new Effect.Tween(null, + scrollOffsets.top, + elementOffsets[1] > max ? max : elementOffsets[1], + options, + function(p){ scrollTo(scrollOffsets.left, p.round()) } + ); +}; + +/* ------------- combination effects ------------- */ + +Effect.Fade = function(element) { + element = $(element); + var oldOpacity = element.getInlineOpacity(); + var options = Object.extend({ + from: element.getOpacity() || 1.0, + to: 0.0, + afterFinishInternal: function(effect) { + if (effect.options.to!=0) return; + effect.element.hide().setStyle({opacity: oldOpacity}); + } + }, arguments[1] || { }); + return new Effect.Opacity(element,options); +}; + +Effect.Appear = function(element) { + element = $(element); + var options = Object.extend({ + from: (element.getStyle('display') == 'none' ? 0.0 : element.getOpacity() || 0.0), + to: 1.0, + // force Safari to render floated elements properly + afterFinishInternal: function(effect) { + effect.element.forceRerendering(); + }, + beforeSetup: function(effect) { + effect.element.setOpacity(effect.options.from).show(); + }}, arguments[1] || { }); + return new Effect.Opacity(element,options); +}; + +Effect.Puff = function(element) { + element = $(element); + var oldStyle = { + opacity: element.getInlineOpacity(), + position: element.getStyle('position'), + top: element.style.top, + left: element.style.left, + width: element.style.width, + height: element.style.height + }; + return new Effect.Parallel( + [ new Effect.Scale(element, 200, + { sync: true, scaleFromCenter: true, scaleContent: true, restoreAfterFinish: true }), + new Effect.Opacity(element, { sync: true, to: 0.0 } ) ], + Object.extend({ duration: 1.0, + beforeSetupInternal: function(effect) { + Position.absolutize(effect.effects[0].element) + }, + afterFinishInternal: function(effect) { + effect.effects[0].element.hide().setStyle(oldStyle); } + }, arguments[1] || { }) + ); +}; + +Effect.BlindUp = function(element) { + element = $(element); + element.makeClipping(); + return new Effect.Scale(element, 0, + Object.extend({ scaleContent: false, + scaleX: false, + restoreAfterFinish: true, + afterFinishInternal: function(effect) { + effect.element.hide().undoClipping(); + } + }, arguments[1] || { }) + ); +}; + +Effect.BlindDown = function(element) { + element = $(element); + var elementDimensions = element.getDimensions(); + return new Effect.Scale(element, 100, Object.extend({ + scaleContent: false, + scaleX: false, + scaleFrom: 0, + scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width}, + restoreAfterFinish: true, + afterSetup: function(effect) { + effect.element.makeClipping().setStyle({height: '0px'}).show(); + }, + afterFinishInternal: function(effect) { + effect.element.undoClipping(); + } + }, arguments[1] || { })); +}; + +Effect.SwitchOff = function(element) { + element = $(element); + var oldOpacity = element.getInlineOpacity(); + return new Effect.Appear(element, Object.extend({ + duration: 0.4, + from: 0, + transition: Effect.Transitions.flicker, + afterFinishInternal: function(effect) { + new Effect.Scale(effect.element, 1, { + duration: 0.3, scaleFromCenter: true, + scaleX: false, scaleContent: false, restoreAfterFinish: true, + beforeSetup: function(effect) { + effect.element.makePositioned().makeClipping(); + }, + afterFinishInternal: function(effect) { + effect.element.hide().undoClipping().undoPositioned().setStyle({opacity: oldOpacity}); + } + }) + } + }, arguments[1] || { })); +}; + +Effect.DropOut = function(element) { + element = $(element); + var oldStyle = { + top: element.getStyle('top'), + left: element.getStyle('left'), + opacity: element.getInlineOpacity() }; + return new Effect.Parallel( + [ new Effect.Move(element, {x: 0, y: 100, sync: true }), + new Effect.Opacity(element, { sync: true, to: 0.0 }) ], + Object.extend( + { duration: 0.5, + beforeSetup: function(effect) { + effect.effects[0].element.makePositioned(); + }, + afterFinishInternal: function(effect) { + effect.effects[0].element.hide().undoPositioned().setStyle(oldStyle); + } + }, arguments[1] || { })); +}; + +Effect.Shake = function(element) { + element = $(element); + var options = Object.extend({ + distance: 20, + duration: 0.5 + }, arguments[1] || {}); + var distance = parseFloat(options.distance); + var split = parseFloat(options.duration) / 10.0; + var oldStyle = { + top: element.getStyle('top'), + left: element.getStyle('left') }; + return new Effect.Move(element, + { x: distance, y: 0, duration: split, afterFinishInternal: function(effect) { + new Effect.Move(effect.element, + { x: -distance*2, y: 0, duration: split*2, afterFinishInternal: function(effect) { + new Effect.Move(effect.element, + { x: distance*2, y: 0, duration: split*2, afterFinishInternal: function(effect) { + new Effect.Move(effect.element, + { x: -distance*2, y: 0, duration: split*2, afterFinishInternal: function(effect) { + new Effect.Move(effect.element, + { x: distance*2, y: 0, duration: split*2, afterFinishInternal: function(effect) { + new Effect.Move(effect.element, + { x: -distance, y: 0, duration: split, afterFinishInternal: function(effect) { + effect.element.undoPositioned().setStyle(oldStyle); + }}) }}) }}) }}) }}) }}); +}; + +Effect.SlideDown = function(element) { + element = $(element).cleanWhitespace(); + // SlideDown need to have the content of the element wrapped in a container element with fixed height! + var oldInnerBottom = element.down().getStyle('bottom'); + var elementDimensions = element.getDimensions(); + return new Effect.Scale(element, 100, Object.extend({ + scaleContent: false, + scaleX: false, + scaleFrom: window.opera ? 0 : 1, + scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width}, + restoreAfterFinish: true, + afterSetup: function(effect) { + effect.element.makePositioned(); + effect.element.down().makePositioned(); + if (window.opera) effect.element.setStyle({top: ''}); + effect.element.makeClipping().setStyle({height: '0px'}).show(); + }, + afterUpdateInternal: function(effect) { + effect.element.down().setStyle({bottom: + (effect.dims[0] - effect.element.clientHeight) + 'px' }); + }, + afterFinishInternal: function(effect) { + effect.element.undoClipping().undoPositioned(); + effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom}); } + }, arguments[1] || { }) + ); +}; + +Effect.SlideUp = function(element) { + element = $(element).cleanWhitespace(); + var oldInnerBottom = element.down().getStyle('bottom'); + var elementDimensions = element.getDimensions(); + return new Effect.Scale(element, window.opera ? 0 : 1, + Object.extend({ scaleContent: false, + scaleX: false, + scaleMode: 'box', + scaleFrom: 100, + scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width}, + restoreAfterFinish: true, + afterSetup: function(effect) { + effect.element.makePositioned(); + effect.element.down().makePositioned(); + if (window.opera) effect.element.setStyle({top: ''}); + effect.element.makeClipping().show(); + }, + afterUpdateInternal: function(effect) { + effect.element.down().setStyle({bottom: + (effect.dims[0] - effect.element.clientHeight) + 'px' }); + }, + afterFinishInternal: function(effect) { + effect.element.hide().undoClipping().undoPositioned(); + effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom}); + } + }, arguments[1] || { }) + ); +}; + +// Bug in opera makes the TD containing this element expand for a instance after finish +Effect.Squish = function(element) { + return new Effect.Scale(element, window.opera ? 1 : 0, { + restoreAfterFinish: true, + beforeSetup: function(effect) { + effect.element.makeClipping(); + }, + afterFinishInternal: function(effect) { + effect.element.hide().undoClipping(); + } + }); +}; + +Effect.Grow = function(element) { + element = $(element); + var options = Object.extend({ + direction: 'center', + moveTransition: Effect.Transitions.sinoidal, + scaleTransition: Effect.Transitions.sinoidal, + opacityTransition: Effect.Transitions.full + }, arguments[1] || { }); + var oldStyle = { + top: element.style.top, + left: element.style.left, + height: element.style.height, + width: element.style.width, + opacity: element.getInlineOpacity() }; + + var dims = element.getDimensions(); + var initialMoveX, initialMoveY; + var moveX, moveY; + + switch (options.direction) { + case 'top-left': + initialMoveX = initialMoveY = moveX = moveY = 0; + break; + case 'top-right': + initialMoveX = dims.width; + initialMoveY = moveY = 0; + moveX = -dims.width; + break; + case 'bottom-left': + initialMoveX = moveX = 0; + initialMoveY = dims.height; + moveY = -dims.height; + break; + case 'bottom-right': + initialMoveX = dims.width; + initialMoveY = dims.height; + moveX = -dims.width; + moveY = -dims.height; + break; + case 'center': + initialMoveX = dims.width / 2; + initialMoveY = dims.height / 2; + moveX = -dims.width / 2; + moveY = -dims.height / 2; + break; + } + + return new Effect.Move(element, { + x: initialMoveX, + y: initialMoveY, + duration: 0.01, + beforeSetup: function(effect) { + effect.element.hide().makeClipping().makePositioned(); + }, + afterFinishInternal: function(effect) { + new Effect.Parallel( + [ new Effect.Opacity(effect.element, { sync: true, to: 1.0, from: 0.0, transition: options.opacityTransition }), + new Effect.Move(effect.element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition }), + new Effect.Scale(effect.element, 100, { + scaleMode: { originalHeight: dims.height, originalWidth: dims.width }, + sync: true, scaleFrom: window.opera ? 1 : 0, transition: options.scaleTransition, restoreAfterFinish: true}) + ], Object.extend({ + beforeSetup: function(effect) { + effect.effects[0].element.setStyle({height: '0px'}).show(); + }, + afterFinishInternal: function(effect) { + effect.effects[0].element.undoClipping().undoPositioned().setStyle(oldStyle); + } + }, options) + ) + } + }); +}; + +Effect.Shrink = function(element) { + element = $(element); + var options = Object.extend({ + direction: 'center', + moveTransition: Effect.Transitions.sinoidal, + scaleTransition: Effect.Transitions.sinoidal, + opacityTransition: Effect.Transitions.none + }, arguments[1] || { }); + var oldStyle = { + top: element.style.top, + left: element.style.left, + height: element.style.height, + width: element.style.width, + opacity: element.getInlineOpacity() }; + + var dims = element.getDimensions(); + var moveX, moveY; + + switch (options.direction) { + case 'top-left': + moveX = moveY = 0; + break; + case 'top-right': + moveX = dims.width; + moveY = 0; + break; + case 'bottom-left': + moveX = 0; + moveY = dims.height; + break; + case 'bottom-right': + moveX = dims.width; + moveY = dims.height; + break; + case 'center': + moveX = dims.width / 2; + moveY = dims.height / 2; + break; + } + + return new Effect.Parallel( + [ new Effect.Opacity(element, { sync: true, to: 0.0, from: 1.0, transition: options.opacityTransition }), + new Effect.Scale(element, window.opera ? 1 : 0, { sync: true, transition: options.scaleTransition, restoreAfterFinish: true}), + new Effect.Move(element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition }) + ], Object.extend({ + beforeStartInternal: function(effect) { + effect.effects[0].element.makePositioned().makeClipping(); + }, + afterFinishInternal: function(effect) { + effect.effects[0].element.hide().undoClipping().undoPositioned().setStyle(oldStyle); } + }, options) + ); +}; + +Effect.Pulsate = function(element) { + element = $(element); + var options = arguments[1] || { }; + var oldOpacity = element.getInlineOpacity(); + var transition = options.transition || Effect.Transitions.sinoidal; + var reverser = function(pos){ return transition(1-Effect.Transitions.pulse(pos, options.pulses)) }; + reverser.bind(transition); + return new Effect.Opacity(element, + Object.extend(Object.extend({ duration: 2.0, from: 0, + afterFinishInternal: function(effect) { effect.element.setStyle({opacity: oldOpacity}); } + }, options), {transition: reverser})); +}; + +Effect.Fold = function(element) { + element = $(element); + var oldStyle = { + top: element.style.top, + left: element.style.left, + width: element.style.width, + height: element.style.height }; + element.makeClipping(); + return new Effect.Scale(element, 5, Object.extend({ + scaleContent: false, + scaleX: false, + afterFinishInternal: function(effect) { + new Effect.Scale(element, 1, { + scaleContent: false, + scaleY: false, + afterFinishInternal: function(effect) { + effect.element.hide().undoClipping().setStyle(oldStyle); + } }); + }}, arguments[1] || { })); +}; + +Effect.Morph = Class.create(Effect.Base, { + initialize: function(element) { + this.element = $(element); + if (!this.element) throw(Effect._elementDoesNotExistError); + var options = Object.extend({ + style: { } + }, arguments[1] || { }); + + if (!Object.isString(options.style)) this.style = $H(options.style); + else { + if (options.style.include(':')) + this.style = options.style.parseStyle(); + else { + this.element.addClassName(options.style); + this.style = $H(this.element.getStyles()); + this.element.removeClassName(options.style); + var css = this.element.getStyles(); + this.style = this.style.reject(function(style) { + return style.value == css[style.key]; + }); + options.afterFinishInternal = function(effect) { + effect.element.addClassName(effect.options.style); + effect.transforms.each(function(transform) { + effect.element.style[transform.style] = ''; + }); + } + } + } + this.start(options); + }, + + setup: function(){ + function parseColor(color){ + if (!color || ['rgba(0, 0, 0, 0)','transparent'].include(color)) color = '#ffffff'; + color = color.parseColor(); + return $R(0,2).map(function(i){ + return parseInt( color.slice(i*2+1,i*2+3), 16 ) + }); + } + this.transforms = this.style.map(function(pair){ + var property = pair[0], value = pair[1], unit = null; + + if (value.parseColor('#zzzzzz') != '#zzzzzz') { + value = value.parseColor(); + unit = 'color'; + } else if (property == 'opacity') { + value = parseFloat(value); + if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout)) + this.element.setStyle({zoom: 1}); + } else if (Element.CSS_LENGTH.test(value)) { + var components = value.match(/^([\+\-]?[0-9\.]+)(.*)$/); + value = parseFloat(components[1]); + unit = (components.length == 3) ? components[2] : null; + } + + var originalValue = this.element.getStyle(property); + return { + style: property.camelize(), + originalValue: unit=='color' ? parseColor(originalValue) : parseFloat(originalValue || 0), + targetValue: unit=='color' ? parseColor(value) : value, + unit: unit + }; + }.bind(this)).reject(function(transform){ + return ( + (transform.originalValue == transform.targetValue) || + ( + transform.unit != 'color' && + (isNaN(transform.originalValue) || isNaN(transform.targetValue)) + ) + ) + }); + }, + update: function(position) { + var style = { }, transform, i = this.transforms.length; + while(i--) + style[(transform = this.transforms[i]).style] = + transform.unit=='color' ? '#'+ + (Math.round(transform.originalValue[0]+ + (transform.targetValue[0]-transform.originalValue[0])*position)).toColorPart() + + (Math.round(transform.originalValue[1]+ + (transform.targetValue[1]-transform.originalValue[1])*position)).toColorPart() + + (Math.round(transform.originalValue[2]+ + (transform.targetValue[2]-transform.originalValue[2])*position)).toColorPart() : + (transform.originalValue + + (transform.targetValue - transform.originalValue) * position).toFixed(3) + + (transform.unit === null ? '' : transform.unit); + this.element.setStyle(style, true); + } +}); + +Effect.Transform = Class.create({ + initialize: function(tracks){ + this.tracks = []; + this.options = arguments[1] || { }; + this.addTracks(tracks); + }, + addTracks: function(tracks){ + tracks.each(function(track){ + track = $H(track); + var data = track.values().first(); + this.tracks.push($H({ + ids: track.keys().first(), + effect: Effect.Morph, + options: { style: data } + })); + }.bind(this)); + return this; + }, + play: function(){ + return new Effect.Parallel( + this.tracks.map(function(track){ + var ids = track.get('ids'), effect = track.get('effect'), options = track.get('options'); + var elements = [$(ids) || $$(ids)].flatten(); + return elements.map(function(e){ return new effect(e, Object.extend({ sync:true }, options)) }); + }).flatten(), + this.options + ); + } +}); + +Element.CSS_PROPERTIES = $w( + 'backgroundColor backgroundPosition borderBottomColor borderBottomStyle ' + + 'borderBottomWidth borderLeftColor borderLeftStyle borderLeftWidth ' + + 'borderRightColor borderRightStyle borderRightWidth borderSpacing ' + + 'borderTopColor borderTopStyle borderTopWidth bottom clip color ' + + 'fontSize fontWeight height left letterSpacing lineHeight ' + + 'marginBottom marginLeft marginRight marginTop markerOffset maxHeight '+ + 'maxWidth minHeight minWidth opacity outlineColor outlineOffset ' + + 'outlineWidth paddingBottom paddingLeft paddingRight paddingTop ' + + 'right textIndent top width wordSpacing zIndex'); + +Element.CSS_LENGTH = /^(([\+\-]?[0-9\.]+)(em|ex|px|in|cm|mm|pt|pc|\%))|0$/; + +String.__parseStyleElement = document.createElement('div'); +String.prototype.parseStyle = function(){ + var style, styleRules = $H(); + if (Prototype.Browser.WebKit) + style = new Element('div',{style:this}).style; + else { + String.__parseStyleElement.innerHTML = '<div style="' + this + '"></div>'; + style = String.__parseStyleElement.childNodes[0].style; + } + + Element.CSS_PROPERTIES.each(function(property){ + if (style[property]) styleRules.set(property, style[property]); + }); + + if (Prototype.Browser.IE && this.include('opacity')) + styleRules.set('opacity', this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1]); + + return styleRules; +}; + +if (document.defaultView && document.defaultView.getComputedStyle) { + Element.getStyles = function(element) { + var css = document.defaultView.getComputedStyle($(element), null); + return Element.CSS_PROPERTIES.inject({ }, function(styles, property) { + styles[property] = css[property]; + return styles; + }); + }; +} else { + Element.getStyles = function(element) { + element = $(element); + var css = element.currentStyle, styles; + styles = Element.CSS_PROPERTIES.inject({ }, function(results, property) { + results[property] = css[property]; + return results; + }); + if (!styles.opacity) styles.opacity = element.getOpacity(); + return styles; + }; +}; + +Effect.Methods = { + morph: function(element, style) { + element = $(element); + new Effect.Morph(element, Object.extend({ style: style }, arguments[2] || { })); + return element; + }, + visualEffect: function(element, effect, options) { + element = $(element) + var s = effect.dasherize().camelize(), klass = s.charAt(0).toUpperCase() + s.substring(1); + new Effect[klass](element, options); + return element; + }, + highlight: function(element, options) { + element = $(element); + new Effect.Highlight(element, options); + return element; + } +}; + +$w('fade appear grow shrink fold blindUp blindDown slideUp slideDown '+ + 'pulsate shake puff squish switchOff dropOut').each( + function(effect) { + Effect.Methods[effect] = function(element, options){ + element = $(element); + Effect[effect.charAt(0).toUpperCase() + effect.substring(1)](element, options); + return element; + } + } +); + +$w('getInlineOpacity forceRerendering setContentZoom collectTextNodes collectTextNodesIgnoreClass getStyles').each( + function(f) { Effect.Methods[f] = Element[f]; } +); + +Element.addMethods(Effect.Methods); |