//
// iWeb - iWebImage.js
// Copyright 2007-2008 Apple Inc.
// All rights reserved.
//

var IWAllImages={};var IWAllImageObjects={};function IWCreateImage(url)
{return IWAllImages[url]||new IWImage(url);}
var IWNamedImages={};function IWImageNamed(name)
{var url=IWNamedImages[name];return url?IWCreateImage(url):null}
function IWRegisterNamedImage(name,url)
{IWNamedImages[name]=url;}
var IWImageEnableUnload=isiPhone;var IWImage=Class.create({initialize:function(url)
{if(IWAllImages.hasOwnProperty(url))
{iWLog("warning -- use IWCreateImage rather than new IWImage and you'll get better performance");}
this.mPreventUnloading=0;this.mLoading=false;this.mLoaded=false;this.mURL=url;this.mCallbacks=[];IWAllImages[url]=this;},sourceURL:function()
{return this.mURL;},loaded:function()
{return this.mLoaded;},load:function(callback,delayCallbackIfLoaded)
{if(this.mLoaded&&(callback!=null))
{delayCallbackIfLoaded?setTimeout(callback,0):callback();}
else
{if(callback!=null)
{this.mCallbacks.push(callback);}
if(this.mLoading==false)
{this.mLoading=true;var img=new Image();IWAllImageObjects[this.sourceURL()]=img;img.onload=this.p_onload.bind(this);img.src=this.mURL;}}},unload:function(evenIfNotEnabled)
{if((evenIfNotEnabled||IWImageEnableUnload)&&this.mLoaded)
{if(this.mPreventUnloading<=0)
{this.mLoaded=false;this.mLoading=false;IWAllImageObjects[this.sourceURL()]=null;}
else
{this.mPreventedUnload=true;}}},preventUnloading:function()
{if(this.mPreventUnloading==0)
{this.mPreventedUnload=false;}
++this.mPreventUnloading;},allowUnloading:function()
{--this.mPreventUnloading;if(this.mPreventUnloading<=0&&this.mPreventedUnload)
{this.unload();}},naturalSize:function()
{(function(){return this.mNaturalSize!==undefined}).bind(this).assert();return this.mNaturalSize;},imgObject:function()
{return IWAllImageObjects[this.sourceURL()];},p_onload:function()
{this.preventUnloading();this.mLoaded=true;if(this.mNaturalSize===undefined)
{var imgObject=this.imgObject();(function(){return imgObject!==undefined}).assert();this.mNaturalSize=new IWSize(imgObject.width,imgObject.height);}
for(var i=0;i<this.mCallbacks.length;++i)
{this.mCallbacks[i]();}
this.mCallbacks=[];this.allowUnloading();},toString:function()
{return"IWImage("+this.mNaturalSize+", "+this.mURL+")";}});function IWCreateLoadingArea()
{if(IWSharedLoadingAreaManager==null)
{IWSharedLoadingAreaManager=new IWLoadingAreaManager();}
return IWSharedLoadingAreaManager.createLoadingArea();}
var IWLoadingAreaManager=Class.create({initialize:function()
{var div=$(document.createElement("div"));div.setStyle({visibility:"hidden",position:"absolute",width:0,height:0,overflow:"hidden"});document.body.appendChild(div);this.mCurrentLoadingArea=div;},createLoadingArea:function()
{var loadingArea=document.createElement('div');this.mCurrentLoadingArea.appendChild(loadingArea);return loadingArea;}});var IWSharedLoadingAreaManager=null;var IWSharedEffectRegistry=null;var allStyleSheetsLoaded=false;var timeStyleSheetsAppearedInDOM=null;function IWCreateEffectRegistry()
{if(IWSharedEffectRegistry==null)
{IWSharedEffectRegistry=new IWEffectRegistry();}
return IWSharedEffectRegistry;}
var IWEffectRegistry=Class.create({initialize:function()
{this.mEffects=null;},registerEffects:function(effects)
{this.mEffects=effects;},applyEffects:function()
{var effectQueue=[];effectQueue=effectQueue.concat(this.p_queueForEffectType("crop"));effectQueue=effectQueue.concat(this.p_queueForEffectType("stroke"));effectQueue=effectQueue.concat(this.p_queueForEffectType("reflection"));effectQueue=effectQueue.concat(this.p_queueForEffectType("shadow"));this.p_applyEffectsFromQueue(effectQueue);},p_queueForEffectType:function(effectType)
{var effectQueue=[];var i=0;var effectClass=effectType+"_"+i++;while(effect=this.mEffects[effectClass])
{effectQueue=effectQueue.concat(this.p_queueForEffectClass(effect,effectClass));effectClass=effectType+"_"+i++;}
return effectQueue;},p_queueForEffectClass:function(effect,effectClass,elementList)
{var effectQueue=[];var elements=elementList||$$("."+effectClass);while(elements&&elements.length>0)
{var element=elements.shift();var children=element.select("."+effectClass);if(children.length>0)
{elements=elements.minusArray(children);effectQueue=effectQueue.concat(this.p_queueForEffectClass(effect,effectClass,children));}
effectQueue.push({element:element,effect:effect});}
return effectQueue;},p_allStyleSheetsLoaded:function()
{if(isCamino||isFirefox)
{if(timeStyleSheetsAppearedInDOM!=null)
{duration=(new Date().getTime())-timeStyleSheetsAppearedInDOM;if(duration>100)
{allStyleSheetsLoaded=true;timeStyleSheetsAppearedInDOM=null;}}
else if(!allStyleSheetsLoaded)
{for(var i=0,sheetCount=document.styleSheets.length;i<sheetCount;i++)
{var styleSheet=document.styleSheets[i];if(styleSheet.href&&styleSheet.href.indexOf("Moz.css")!=-1)
{timeStyleSheetsAppearedInDOM=new Date().getTime();}}}}
else
{allStyleSheetsLoaded=true;}
return allStyleSheetsLoaded;},p_applyEffectsFromQueue:function(queue)
{var startTime=new Date().getTime();var duration=0;var readyToApplyEffects=this.p_allStyleSheetsLoaded();while(queue.length>0&&duration<100&&readyToApplyEffects)
{var queueEntry=queue.shift();if(queueEntry&&queueEntry.effect&&queueEntry.element)
{queueEntry.effect.applyToElement(queueEntry.element);}
duration=(new Date().getTime())-startTime;}
if(queue.length>0)
{setTimeout(this.p_applyEffectsFromQueue.bind(this,queue),0);}
else
{performPostEffectsFixups();}}});function IWChildOffset(child,parent,positionedOnly)
{var l=0;var t=0;if(parent)
{var current=child;while(current&&current!=parent)
{if(!positionedOnly||(current.style.position=="absolute")||(current.style.position=="relative"))
{l+=current.offsetLeft;t+=current.offsetTop;}
current=current.parentNode;}}
return new IWPoint(l,t);}
function IWImageExtents(ancestor,images,left,top,right,bottom)
{var unionedBounds=new IWRect(left,top,right-left,bottom-top);for(var e=0;e<images.length;++e)
{var imageClippedBounds=new IWRect(images[e].offsetLeft,images[e].offsetTop,images[e].offsetWidth,images[e].offsetHeight);if(ancestor)
{var current=images[e].parentNode;while(current&&current!=ancestor)
{if((current.style.position=="absolute")||(current.style.position=="relative"))
{imageClippedBounds.origin.x+=current.offsetLeft||0;imageClippedBounds.origin.y+=current.offsetTop||0;}
var testForHidden=function(str)
{return str=='hidden';};var clipX=[current.style.overflow,current.style.overflowX].any(testForHidden);var clipY=[current.style.overflow,current.style.overflowY].any(testForHidden);if(clipX||clipY)
{var currentRect=new IWRect(clipX?current.offsetLeft:imageClippedBounds.origin.x,clipY?current.offsetTop:imageClippedBounds.origin.y,clipX?current.offsetWidth:imageClippedBounds.size.width,clipY?current.offsetHeight:imageClippedBounds.size.height);imageClippedBounds=imageClippedBounds.intersection(currentRect);}
current=current.parentNode;}}
if((imageClippedBounds.size.width>0)&&(imageClippedBounds.size.height>0))
{if((unionedBounds.size.width>0)&&(unionedBounds.size.height>0))
{unionedBounds=unionedBounds.union(imageClippedBounds);}
else
{unionedBounds=imageClippedBounds.clone();}}}
var extents={left:unionedBounds.origin.x,top:unionedBounds.origin.y,right:unionedBounds.origin.x+unionedBounds.size.width,bottom:unionedBounds.origin.y+unionedBounds.size.height};return extents;}
function IWEffectChildren(element,imagesOnly)
{element=$(element);var inlineBlocks=element.select('.inline-block');return element.descendants().findAll(function(child){if((!imagesOnly&&child.match("div.badge-fill"))||child.match("img"))
{var inline=false;for(var index=0,end=inlineBlocks.length;inline==false&&index<end;++index)
{inline=child.descendantOf(inlineBlocks[index]);}
return inline==false;}
else
{return false;}});}
function IWClippingNode(node)
{if(node)
{if(node.style&&(node.style.overflow||node.style.overflowX||node.style.overflowY))
{if([node.style.overflow,node.style.overflowX,node.style.overflowY].include('hidden'))
return node;}
else
{return IWClippingNode(node.parentNode);}}
return null;}
var IWShadow=Class.create({initialize:function(params)
{this.mBlurRadius=params.blurRadius;this.mOffset=params.offset;this.mColor=params.color;this.mOpacity=params.opacity;},applyToElement:function(shadowed)
{var framePos=new IWPoint(shadowed.offsetLeft,shadowed.offsetTop);var frameSize=new IWSize(shadowed.offsetWidth,shadowed.offsetHeight);var opacity=1.0;if(shadowed!=null)
{shadowed=$(shadowed);opacity=shadowed.getStyle('opacity');if(windowsInternetExplorer)
{var newRoot=$(shadowed.cloneNode(false));shadowed.parentNode.insertBefore(newRoot,shadowed);var shadow=$(document.createElement('DIV'));var shadowContents=shadowed.cloneNodeExcludingIDs(true);shadow.appendChild(shadowContents);shadow.select('map').each(function(mapElement){mapElement.parentNode.removeChild(mapElement);});shadow.select(".IWReflection").invoke("remove");newRoot.appendChild(shadow);newRoot.appendChild(shadowed);shadowed.setStyle({top:0,left:0});var blurRadius=this.mBlurRadius*0.5;var xOffset=this.mOffset.x-(this.mBlurRadius*0.6);var yOffset=this.mOffset.y-(this.mBlurRadius*0.6);shadow.setStyle({position:"absolute",left:px(xOffset-500),top:px(yOffset-500),width:px(frameSize.width+1000),height:px(frameSize.height+1000)});shadowContents.setStyle({position:"absolute",left:px(500),top:px(500),padding:0,margin:0});shadow.style.filter="progid:DXImageTransform.Microsoft.MaskFilter()"+" progid:DXImageTransform.Microsoft.MaskFilter(color="+this.mColor+")"+" progid:DXImageTransform.Microsoft.Alpha(opacity="+this.mOpacity*opacity*100+")"+" progid:DXImageTransform.Microsoft.Blur(pixelradius="+blurRadius+")";if(newRoot.hasClassName("inline-block"))
{var rootTop=newRoot.style.top;var rootMarginTop=newRoot.style.marginTop;if(rootTop&&!rootMarginTop)
{rootTop=(toPixelsAtElement(newRoot,rootTop,true));newRoot.style.marginTop=px(-rootTop);}
else if(!rootTop&&rootMarginTop)
{rootMarginTop=(toPixelsAtElement(newRoot,rootMarginTop,true));newRoot.style.rootTop=px(-rootMarginTop);}
else if(rootTop&&rootMarginTop)
{rootTop=(toPixelsAtElement(newRoot,rootTop,true));rootMarginTop=(toPixelsAtElement(newRoot,rootMarginTop,true));if(rootTop!=rootMarginTop)
{newRoot.style.rootTop=px(-rootMarginTop);}}}
if(shadowed.offsetTop!=0)
{var top=shadowed.style.top;top=top?(toPixelsAtElement(shadowed,top,true)):0;top-=shadowed.offsetTop;shadowed.style.top=px(top);}}
else
{var sourceElements=IWEffectChildren(shadowed,false);var extents=IWImageExtents(shadowed,sourceElements,0,0,frameSize.width,frameSize.height);var canvas=undefined;if(shadowed.sandwich&&shadowed.sandwich.canvas)
{canvas=shadowed.sandwich.canvas;}
extents.left-=Math.max(this.mBlurRadius-this.mOffset.x,0);extents.top-=Math.max(this.mBlurRadius-this.mOffset.y,0);extents.right+=Math.max(this.mBlurRadius+this.mOffset.x,0);extents.bottom+=Math.max(this.mBlurRadius+this.mOffset.y,0);extents.left=Math.floor(extents.left);extents.top=Math.floor(extents.top);extents.right=Math.ceil(extents.right);extents.bottom=Math.ceil(extents.bottom);var leftOffset=extents.left;var topOffset=extents.top;extents.right-=extents.left;extents.bottom-=extents.top;extents.left