MDL-11082 Improved groups upgrade performance 1.8x -> 1.9; thanks Eloy for telling...

[moodle-pu.git] / lib / yui / dragdrop / dragdrop-min.js

/*
Copyright (c) 2007, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.3.0
*/

if(!YAHOO.util.DragDropMgr){YAHOO.util.DragDropMgr=function(){var Event=YAHOO.util.Event;return{ids:{},handleIds:{},dragCurrent:null,dragOvers:{},deltaX:0,deltaY:0,preventDefault:true,stopPropagation:true,initialized:false,locked:false,interactionInfo:null,init:function(){this.initialized=true;},POINT:0,INTERSECT:1,STRICT_INTERSECT:2,mode:0,_execOnAll:function(sMethod,args){for(var i in this.ids){for(var j in this.ids[i]){var oDD=this.ids[i][j];if(!this.isTypeOfDD(oDD)){continue;}
oDD[sMethod].apply(oDD,args);}}},_onLoad:function(){this.init();Event.on(document,"mouseup",this.handleMouseUp,this,true);Event.on(document,"mousemove",this.handleMouseMove,this,true);Event.on(window,"unload",this._onUnload,this,true);Event.on(window,"resize",this._onResize,this,true);},_onResize:function(e){this._execOnAll("resetConstraints",[]);},lock:function(){this.locked=true;},unlock:function(){this.locked=false;},isLocked:function(){return this.locked;},locationCache:{},useCache:true,clickPixelThresh:3,clickTimeThresh:1000,dragThreshMet:false,clickTimeout:null,startX:0,startY:0,regDragDrop:function(oDD,sGroup){if(!this.initialized){this.init();}
if(!this.ids[sGroup]){this.ids[sGroup]={};}
this.ids[sGroup][oDD.id]=oDD;},removeDDFromGroup:function(oDD,sGroup){if(!this.ids[sGroup]){this.ids[sGroup]={};}
var obj=this.ids[sGroup];if(obj&&obj[oDD.id]){delete obj[oDD.id];}},_remove:function(oDD){for(var g in oDD.groups){if(g&&this.ids[g][oDD.id]){delete this.ids[g][oDD.id];}}
delete this.handleIds[oDD.id];},regHandle:function(sDDId,sHandleId){if(!this.handleIds[sDDId]){this.handleIds[sDDId]={};}
this.handleIds[sDDId][sHandleId]=sHandleId;},isDragDrop:function(id){return(this.getDDById(id))?true:false;},getRelated:function(p_oDD,bTargetsOnly){var oDDs=[];for(var i in p_oDD.groups){for(j in this.ids[i]){var dd=this.ids[i][j];if(!this.isTypeOfDD(dd)){continue;}
if(!bTargetsOnly||dd.isTarget){oDDs[oDDs.length]=dd;}}}
return oDDs;},isLegalTarget:function(oDD,oTargetDD){var targets=this.getRelated(oDD,true);for(var i=0,len=targets.length;i<len;++i){if(targets[i].id==oTargetDD.id){return true;}}
return false;},isTypeOfDD:function(oDD){return(oDD&&oDD.__ygDragDrop);},isHandle:function(sDDId,sHandleId){return(this.handleIds[sDDId]&&this.handleIds[sDDId][sHandleId]);},getDDById:function(id){for(var i in this.ids){if(this.ids[i][id]){return this.ids[i][id];}}
return null;},handleMouseDown:function(e,oDD){this.currentTarget=YAHOO.util.Event.getTarget(e);this.dragCurrent=oDD;var el=oDD.getEl();this.startX=YAHOO.util.Event.getPageX(e);this.startY=YAHOO.util.Event.getPageY(e);this.deltaX=this.startX-el.offsetLeft;this.deltaY=this.startY-el.offsetTop;this.dragThreshMet=false;this.clickTimeout=setTimeout(function(){var DDM=YAHOO.util.DDM;DDM.startDrag(DDM.startX,DDM.startY);},this.clickTimeThresh);},startDrag:function(x,y){clearTimeout(this.clickTimeout);var dc=this.dragCurrent;if(dc){dc.b4StartDrag(x,y);}
if(dc){dc.startDrag(x,y);}
this.dragThreshMet=true;},handleMouseUp:function(e){if(this.dragCurrent){clearTimeout(this.clickTimeout);if(this.dragThreshMet){this.fireEvents(e,true);}else{}
this.stopDrag(e);this.stopEvent(e);}},stopEvent:function(e){if(this.stopPropagation){YAHOO.util.Event.stopPropagation(e);}
if(this.preventDefault){YAHOO.util.Event.preventDefault(e);}},stopDrag:function(e,silent){if(this.dragCurrent&&!silent){if(this.dragThreshMet){this.dragCurrent.b4EndDrag(e);this.dragCurrent.endDrag(e);}
this.dragCurrent.onMouseUp(e);}
this.dragCurrent=null;this.dragOvers={};},handleMouseMove:function(e){var dc=this.dragCurrent;if(dc){if(YAHOO.util.Event.isIE&&!e.button){this.stopEvent(e);return this.handleMouseUp(e);}
if(!this.dragThreshMet){var diffX=Math.abs(this.startX-YAHOO.util.Event.getPageX(e));var diffY=Math.abs(this.startY-YAHOO.util.Event.getPageY(e));if(diffX>this.clickPixelThresh||diffY>this.clickPixelThresh){this.startDrag(this.startX,this.startY);}}
if(this.dragThreshMet){dc.b4Drag(e);if(dc){dc.onDrag(e);}
if(dc){this.fireEvents(e,false);}}
this.stopEvent(e);}},fireEvents:function(e,isDrop){var dc=this.dragCurrent;if(!dc||dc.isLocked()){return;}
var x=YAHOO.util.Event.getPageX(e);var y=YAHOO.util.Event.getPageY(e);var pt=new YAHOO.util.Point(x,y);var pos=dc.getTargetCoord(pt.x,pt.y);var el=dc.getDragEl();curRegion=new YAHOO.util.Region(pos.y,pos.x+el.offsetWidth,pos.y+el.offsetHeight,pos.x);var oldOvers=[];var outEvts=[];var overEvts=[];var dropEvts=[];var enterEvts=[];for(var i in this.dragOvers){var ddo=this.dragOvers[i];if(!this.isTypeOfDD(ddo)){continue;}
if(!this.isOverTarget(pt,ddo,this.mode,curRegion)){outEvts.push(ddo);}
oldOvers[i]=true;delete this.dragOvers[i];}
for(var sGroup in dc.groups){if("string"!=typeof sGroup){continue;}
for(i in this.ids[sGroup]){var oDD=this.ids[sGroup][i];if(!this.isTypeOfDD(oDD)){continue;}
if(oDD.isTarget&&!oDD.isLocked()&&oDD!=dc){if(this.isOverTarget(pt,oDD,this.mode,curRegion)){if(isDrop){dropEvts.push(oDD);}else{if(!oldOvers[oDD.id]){enterEvts.push(oDD);}else{overEvts.push(oDD);}
this.dragOvers[oDD.id]=oDD;}}}}}
this.interactionInfo={out:outEvts,enter:enterEvts,over:overEvts,drop:dropEvts,point:pt,draggedRegion:curRegion,sourceRegion:this.locationCache[dc.id],validDrop:isDrop};if(isDrop&&!dropEvts.length){this.interactionInfo.validDrop=false;dc.onInvalidDrop(e);}
if(this.mode){if(outEvts.length){dc.b4DragOut(e,outEvts);if(dc){dc.onDragOut(e,outEvts);}}
if(enterEvts.length){if(dc){dc.onDragEnter(e,enterEvts);}}
if(overEvts.length){if(dc){dc.b4DragOver(e,overEvts);}
if(dc){dc.onDragOver(e,overEvts);}}
if(dropEvts.length){if(dc){dc.b4DragDrop(e,dropEvts);}
if(dc){dc.onDragDrop(e,dropEvts);}}}else{var len=0;for(i=0,len=outEvts.length;i<len;++i){if(dc){dc.b4DragOut(e,outEvts[i].id);}
if(dc){dc.onDragOut(e,outEvts[i].id);}}
for(i=0,len=enterEvts.length;i<len;++i){if(dc){dc.onDragEnter(e,enterEvts[i].id);}}
for(i=0,len=overEvts.length;i<len;++i){if(dc){dc.b4DragOver(e,overEvts[i].id);}
if(dc){dc.onDragOver(e,overEvts[i].id);}}
for(i=0,len=dropEvts.length;i<len;++i){if(dc){dc.b4DragDrop(e,dropEvts[i].id);}
if(dc){dc.onDragDrop(e,dropEvts[i].id);}}}},getBestMatch:function(dds){var winner=null;var len=dds.length;if(len==1){winner=dds[0];}else{for(var i=0;i<len;++i){var dd=dds[i];if(this.mode==this.INTERSECT&&dd.cursorIsOver){winner=dd;break;}else{if(!winner||!winner.overlap||(dd.overlap&&winner.overlap.getArea()<dd.overlap.getArea())){winner=dd;}}}}
return winner;},refreshCache:function(groups){var g=groups||this.ids;for(var sGroup in g){if("string"!=typeof sGroup){continue;}
for(var i in this.ids[sGroup]){var oDD=this.ids[sGroup][i];if(this.isTypeOfDD(oDD)){var loc=this.getLocation(oDD);if(loc){this.locationCache[oDD.id]=loc;}else{delete this.locationCache[oDD.id];}}}}},verifyEl:function(el){try{if(el){var parent=el.offsetParent;if(parent){return true;}}}catch(e){}
return false;},getLocation:function(oDD){if(!this.isTypeOfDD(oDD)){return null;}
var el=oDD.getEl(),pos,x1,x2,y1,y2,t,r,b,l;try{pos=YAHOO.util.Dom.getXY(el);}catch(e){}
if(!pos){return null;}
x1=pos[0];x2=x1+el.offsetWidth;y1=pos[1];y2=y1+el.offsetHeight;t=y1-oDD.padding[0];r=x2+oDD.padding[1];b=y2+oDD.padding[2];l=x1-oDD.padding[3];return new YAHOO.util.Region(t,r,b,l);},isOverTarget:function(pt,oTarget,intersect,curRegion){var loc=this.locationCache[oTarget.id];if(!loc||!this.useCache){loc=this.getLocation(oTarget);this.locationCache[oTarget.id]=loc;}
if(!loc){return false;}
oTarget.cursorIsOver=loc.contains(pt);var dc=this.dragCurrent;if(!dc||(!intersect&&!dc.constrainX&&!dc.constrainY)){return oTarget.cursorIsOver;}
oTarget.overlap=null;if(!curRegion){var pos=dc.getTargetCoord(pt.x,pt.y);var el=dc.getDragEl();curRegion=new YAHOO.util.Region(pos.y,pos.x+el.offsetWidth,pos.y+el.offsetHeight,pos.x);}
var overlap=curRegion.intersect(loc);if(overlap){oTarget.overlap=overlap;return(intersect)?true:oTarget.cursorIsOver;}else{return false;}},_onUnload:function(e,me){this.unregAll();},unregAll:function(){if(this.dragCurrent){this.stopDrag();this.dragCurrent=null;}
this._execOnAll("unreg",[]);for(i in this.elementCache){delete this.elementCache[i];}
this.elementCache={};this.ids={};},elementCache:{},getElWrapper:function(id){var oWrapper=this.elementCache[id];if(!oWrapper||!oWrapper.el){oWrapper=this.elementCache[id]=new this.ElementWrapper(YAHOO.util.Dom.get(id));}
return oWrapper;},getElement:function(id){return YAHOO.util.Dom.get(id);},getCss:function(id){var el=YAHOO.util.Dom.get(id);return(el)?el.style:null;},ElementWrapper:function(el){this.el=el||null;this.id=this.el&&el.id;this.css=this.el&&el.style;},getPosX:function(el){return YAHOO.util.Dom.getX(el);},getPosY:function(el){return YAHOO.util.Dom.getY(el);},swapNode:function(n1,n2){if(n1.swapNode){n1.swapNode(n2);}else{var p=n2.parentNode;var s=n2.nextSibling;if(s==n1){p.insertBefore(n1,n2);}else if(n2==n1.nextSibling){p.insertBefore(n2,n1);}else{n1.parentNode.replaceChild(n2,n1);p.insertBefore(n1,s);}}},getScroll:function(){var t,l,dde=document.documentElement,db=document.body;if(dde&&(dde.scrollTop||dde.scrollLeft)){t=dde.scrollTop;l=dde.scrollLeft;}else if(db){t=db.scrollTop;l=db.scrollLeft;}else{}
return{top:t,left:l};},getStyle:function(el,styleProp){return YAHOO.util.Dom.getStyle(el,styleProp);},getScrollTop:function(){return this.getScroll().top;},getScrollLeft:function(){return this.getScroll().left;},moveToEl:function(moveEl,targetEl){var aCoord=YAHOO.util.Dom.getXY(targetEl);YAHOO.util.Dom.setXY(moveEl,aCoord);},getClientHeight:function(){return YAHOO.util.Dom.getViewportHeight();},getClientWidth:function(){return YAHOO.util.Dom.getViewportWidth();},numericSort:function(a,b){return(a-b);},_timeoutCount:0,_addListeners:function(){var DDM=YAHOO.util.DDM;if(YAHOO.util.Event&&document){DDM._onLoad();}else{if(DDM._timeoutCount>2000){}else{setTimeout(DDM._addListeners,10);if(document&&document.body){DDM._timeoutCount+=1;}}}},handleWasClicked:function(node,id){if(this.isHandle(id,node.id)){return true;}else{var p=node.parentNode;while(p){if(this.isHandle(id,p.id)){return true;}else{p=p.parentNode;}}}
return false;}};}();YAHOO.util.DDM=YAHOO.util.DragDropMgr;YAHOO.util.DDM._addListeners();}
(function(){var Event=YAHOO.util.Event;var Dom=YAHOO.util.Dom;YAHOO.util.DragDrop=function(id,sGroup,config){if(id){this.init(id,sGroup,config);}};YAHOO.util.DragDrop.prototype={id:null,config:null,dragElId:null,handleElId:null,invalidHandleTypes:null,invalidHandleIds:null,invalidHandleClasses:null,startPageX:0,startPageY:0,groups:null,locked:false,lock:function(){this.locked=true;},unlock:function(){this.locked=false;},isTarget:true,padding:null,_domRef:null,__ygDragDrop:true,constrainX:false,constrainY:false,minX:0,maxX:0,minY:0,maxY:0,deltaX:0,deltaY:0,maintainOffset:false,xTicks:null,yTicks:null,primaryButtonOnly:true,available:false,hasOuterHandles:false,cursorIsOver:false,overlap:null,b4StartDrag:function(x,y){},startDrag:function(x,y){},b4Drag:function(e){},onDrag:function(e){},onDragEnter:function(e,id){},b4DragOver:function(e){},onDragOver:function(e,id){},b4DragOut:function(e){},onDragOut:function(e,id){},b4DragDrop:function(e){},onDragDrop:function(e,id){},onInvalidDrop:function(e){},b4EndDrag:function(e){},endDrag:function(e){},b4MouseDown:function(e){},onMouseDown:function(e){},onMouseUp:function(e){},onAvailable:function(){},getEl:function(){if(!this._domRef){this._domRef=Dom.get(this.id);}
return this._domRef;},getDragEl:function(){return Dom.get(this.dragElId);},init:function(id,sGroup,config){this.initTarget(id,sGroup,config);Event.on(this._domRef||this.id,"mousedown",this.handleMouseDown,this,true);},initTarget:function(id,sGroup,config){this.config=config||{};this.DDM=YAHOO.util.DDM;this.groups={};if(typeof id!=="string"){this._domRef=id;id=Dom.generateId(id);}
this.id=id;this.addToGroup((sGroup)?sGroup:"default");this.handleElId=id;Event.onAvailable(id,this.handleOnAvailable,this,true);this.setDragElId(id);this.invalidHandleTypes={A:"A"};this.invalidHandleIds={};this.invalidHandleClasses=[];this.applyConfig();},applyConfig:function(){this.padding=this.config.padding||[0,0,0,0];this.isTarget=(this.config.isTarget!==false);this.maintainOffset=(this.config.maintainOffset);this.primaryButtonOnly=(this.config.primaryButtonOnly!==false);},handleOnAvailable:function(){this.available=true;this.resetConstraints();this.onAvailable();},setPadding:function(iTop,iRight,iBot,iLeft){if(!iRight&&0!==iRight){this.padding=[iTop,iTop,iTop,iTop];}else if(!iBot&&0!==iBot){this.padding=[iTop,iRight,iTop,iRight];}else{this.padding=[iTop,iRight,iBot,iLeft];}},setInitPosition:function(diffX,diffY){var el=this.getEl();if(!this.DDM.verifyEl(el)){return;}
var dx=diffX||0;var dy=diffY||0;var p=Dom.getXY(el);this.initPageX=p[0]-dx;this.initPageY=p[1]-dy;this.lastPageX=p[0];this.lastPageY=p[1];this.setStartPosition(p);},setStartPosition:function(pos){var p=pos||Dom.getXY(this.getEl());this.deltaSetXY=null;this.startPageX=p[0];this.startPageY=p[1];},addToGroup:function(sGroup){this.groups[sGroup]=true;this.DDM.regDragDrop(this,sGroup);},removeFromGroup:function(sGroup){if(this.groups[sGroup]){delete this.groups[sGroup];}
this.DDM.removeDDFromGroup(this,sGroup);},setDragElId:function(id){this.dragElId=id;},setHandleElId:function(id){if(typeof id!=="string"){id=Dom.generateId(id);}
this.handleElId=id;this.DDM.regHandle(this.id,id);},setOuterHandleElId:function(id){if(typeof id!=="string"){id=Dom.generateId(id);}
Event.on(id,"mousedown",this.handleMouseDown,this,true);this.setHandleElId(id);this.hasOuterHandles=true;},unreg:function(){Event.removeListener(this.id,"mousedown",this.handleMouseDown);this._domRef=null;this.DDM._remove(this);},isLocked:function(){return(this.DDM.isLocked()||this.locked);},handleMouseDown:function(e,oDD){var button=e.which||e.button;if(this.primaryButtonOnly&&button>1){return;}
if(this.isLocked()){return;}
this.b4MouseDown(e);this.onMouseDown(e);this.DDM.refreshCache(this.groups);var pt=new YAHOO.util.Point(Event.getPageX(e),Event.getPageY(e));if(!this.hasOuterHandles&&!this.DDM.isOverTarget(pt,this)){}else{if(this.clickValidator(e)){this.setStartPosition();this.DDM.handleMouseDown(e,this);this.DDM.stopEvent(e);}else{}}},clickValidator:function(e){var target=Event.getTarget(e);return(this.isValidHandleChild(target)&&(this.id==this.handleElId||this.DDM.handleWasClicked(target,this.id)));},getTargetCoord:function(iPageX,iPageY){var x=iPageX-this.deltaX;var y=iPageY-this.deltaY;if(this.constrainX){if(x<this.minX){x=this.minX;}
if(x>this.maxX){x=this.maxX;}}
if(this.constrainY){if(y<this.minY){y=this.minY;}
if(y>this.maxY){y=this.maxY;}}
x=this.getTick(x,this.xTicks);y=this.getTick(y,this.yTicks);return{x:x,y:y};},addInvalidHandleType:function(tagName){var type=tagName.toUpperCase();this.invalidHandleTypes[type]=type;},addInvalidHandleId:function(id){if(typeof id!=="string"){id=Dom.generateId(id);}
this.invalidHandleIds[id]=id;},addInvalidHandleClass:function(cssClass){this.invalidHandleClasses.push(cssClass);},removeInvalidHandleType:function(tagName){var type=tagName.toUpperCase();delete this.invalidHandleTypes[type];},removeInvalidHandleId:function(id){if(typeof id!=="string"){id=Dom.generateId(id);}
delete this.invalidHandleIds[id];},removeInvalidHandleClass:function(cssClass){for(var i=0,len=this.invalidHandleClasses.length;i<len;++i){if(this.invalidHandleClasses[i]==cssClass){delete this.invalidHandleClasses[i];}}},isValidHandleChild:function(node){var valid=true;var nodeName;try{nodeName=node.nodeName.toUpperCase();}catch(e){nodeName=node.nodeName;}
valid=valid&&!this.invalidHandleTypes[nodeName];valid=valid&&!this.invalidHandleIds[node.id];for(var i=0,len=this.invalidHandleClasses.length;valid&&i<len;++i){valid=!Dom.hasClass(node,this.invalidHandleClasses[i]);}
return valid;},setXTicks:function(iStartX,iTickSize){this.xTicks=[];this.xTickSize=iTickSize;var tickMap={};for(var i=this.initPageX;i>=this.minX;i=i-iTickSize){if(!tickMap[i]){this.xTicks[this.xTicks.length]=i;tickMap[i]=true;}}
for(i=this.initPageX;i<=this.maxX;i=i+iTickSize){if(!tickMap[i]){this.xTicks[this.xTicks.length]=i;tickMap[i]=true;}}
this.xTicks.sort(this.DDM.numericSort);},setYTicks:function(iStartY,iTickSize){this.yTicks=[];this.yTickSize=iTickSize;var tickMap={};for(var i=this.initPageY;i>=this.minY;i=i-iTickSize){if(!tickMap[i]){this.yTicks[this.yTicks.length]=i;tickMap[i]=true;}}
for(i=this.initPageY;i<=this.maxY;i=i+iTickSize){if(!tickMap[i]){this.yTicks[this.yTicks.length]=i;tickMap[i]=true;}}
this.yTicks.sort(this.DDM.numericSort);},setXConstraint:function(iLeft,iRight,iTickSize){this.leftConstraint=parseInt(iLeft,10);this.rightConstraint=parseInt(iRight,10);this.minX=this.initPageX-this.leftConstraint;this.maxX=this.initPageX+this.rightConstraint;if(iTickSize){this.setXTicks(this.initPageX,iTickSize);}
this.constrainX=true;},clearConstraints:function(){this.constrainX=false;this.constrainY=false;this.clearTicks();},clearTicks:function(){this.xTicks=null;this.yTicks=null;this.xTickSize=0;this.yTickSize=0;},setYConstraint:function(iUp,iDown,iTickSize){this.topConstraint=parseInt(iUp,10);this.bottomConstraint=parseInt(iDown,10);this.minY=this.initPageY-this.topConstraint;this.maxY=this.initPageY+this.bottomConstraint;if(iTickSize){this.setYTicks(this.initPageY,iTickSize);}
this.constrainY=true;},resetConstraints:function(){if(this.initPageX||this.initPageX===0){var dx=(this.maintainOffset)?this.lastPageX-this.initPageX:0;var dy=(this.maintainOffset)?this.lastPageY-this.initPageY:0;this.setInitPosition(dx,dy);}else{this.setInitPosition();}
if(this.constrainX){this.setXConstraint(this.leftConstraint,this.rightConstraint,this.xTickSize);}
if(this.constrainY){this.setYConstraint(this.topConstraint,this.bottomConstraint,this.yTickSize);}},getTick:function(val,tickArray){if(!tickArray){return val;}else if(tickArray[0]>=val){return tickArray[0];}else{for(var i=0,len=tickArray.length;i<len;++i){var next=i+1;if(tickArray[next]&&tickArray[next]>=val){var diff1=val-tickArray[i];var diff2=tickArray[next]-val;return(diff2>diff1)?tickArray[i]:tickArray[next];}}
return tickArray[tickArray.length-1];}},toString:function(){return("DragDrop "+this.id);}};})();YAHOO.util.DD=function(id,sGroup,config){if(id){this.init(id,sGroup,config);}};YAHOO.extend(YAHOO.util.DD,YAHOO.util.DragDrop,{scroll:true,autoOffset:function(iPageX,iPageY){var x=iPageX-this.startPageX;var y=iPageY-this.startPageY;this.setDelta(x,y);},setDelta:function(iDeltaX,iDeltaY){this.deltaX=iDeltaX;this.deltaY=iDeltaY;},setDragElPos:function(iPageX,iPageY){var el=this.getDragEl();this.alignElWithMouse(el,iPageX,iPageY);},alignElWithMouse:function(el,iPageX,iPageY){var oCoord=this.getTargetCoord(iPageX,iPageY);if(!this.deltaSetXY){var aCoord=[oCoord.x,oCoord.y];YAHOO.util.Dom.setXY(el,aCoord);var newLeft=parseInt(YAHOO.util.Dom.getStyle(el,"left"),10);var newTop=parseInt(YAHOO.util.Dom.getStyle(el,"top"),10);this.deltaSetXY=[newLeft-oCoord.x,newTop-oCoord.y];}else{YAHOO.util.Dom.setStyle(el,"left",(oCoord.x+this.deltaSetXY[0])+"px");YAHOO.util.Dom.setStyle(el,"top",(oCoord.y+this.deltaSetXY[1])+"px");}
this.cachePosition(oCoord.x,oCoord.y);this.autoScroll(oCoord.x,oCoord.y,el.offsetHeight,el.offsetWidth);},cachePosition:function(iPageX,iPageY){if(iPageX){this.lastPageX=iPageX;this.lastPageY=iPageY;}else{var aCoord=YAHOO.util.Dom.getXY(this.getEl());this.lastPageX=aCoord[0];this.lastPageY=aCoord[1];}},autoScroll:function(x,y,h,w){if(this.scroll){var clientH=this.DDM.getClientHeight();var clientW=this.DDM.getClientWidth();var st=this.DDM.getScrollTop();var sl=this.DDM.getScrollLeft();var bot=h+y;var right=w+x;var toBot=(clientH+st-y-this.deltaY);var toRight=(clientW+sl-x-this.deltaX);var thresh=40;var scrAmt=(document.all)?80:30;if(bot>clientH&&toBot<thresh){window.scrollTo(sl,st+scrAmt);}
if(y<st&&st>0&&y-st<thresh){window.scrollTo(sl,st-scrAmt);}
if(right>clientW&&toRight<thresh){window.scrollTo(sl+scrAmt,st);}
if(x<sl&&sl>0&&x-sl<thresh){window.scrollTo(sl-scrAmt,st);}}},applyConfig:function(){YAHOO.util.DD.superclass.applyConfig.call(this);this.scroll=(this.config.scroll!==false);},b4MouseDown:function(e){this.setStartPosition();this.autoOffset(YAHOO.util.Event.getPageX(e),YAHOO.util.Event.getPageY(e));},b4Drag:function(e){this.setDragElPos(YAHOO.util.Event.getPageX(e),YAHOO.util.Event.getPageY(e));},toString:function(){return("DD "+this.id);}});YAHOO.util.DDProxy=function(id,sGroup,config){if(id){this.init(id,sGroup,config);this.initFrame();}};YAHOO.util.DDProxy.dragElId="ygddfdiv";YAHOO.extend(YAHOO.util.DDProxy,YAHOO.util.DD,{resizeFrame:true,centerFrame:false,createFrame:function(){var self=this,body=document.body;if(!body||!body.firstChild){setTimeout(function(){self.createFrame();},50);return;}
var div=this.getDragEl(),Dom=YAHOO.util.Dom;if(!div){div=document.createElement("div");div.id=this.dragElId;var s=div.style;s.position="absolute";s.visibility="hidden";s.cursor="move";s.border="2px solid #aaa";s.zIndex=999;s.height="25px";s.width="25px";var _data=document.createElement('div');Dom.setStyle(_data,'height','100%');Dom.setStyle(_data,'width','100%');Dom.setStyle(_data,'background-color','#ccc');Dom.setStyle(_data,'opacity','0');div.appendChild(_data);body.insertBefore(div,body.firstChild);}},initFrame:function(){this.createFrame();},applyConfig:function(){YAHOO.util.DDProxy.superclass.applyConfig.call(this);this.resizeFrame=(this.config.resizeFrame!==false);this.centerFrame=(this.config.centerFrame);this.setDragElId(this.config.dragElId||YAHOO.util.DDProxy.dragElId);},showFrame:function(iPageX,iPageY){var el=this.getEl();var dragEl=this.getDragEl();var s=dragEl.style;this._resizeProxy();if(this.centerFrame){this.setDelta(Math.round(parseInt(s.width,10)/2),Math.round(parseInt(s.height,10)/2));}
this.setDragElPos(iPageX,iPageY);YAHOO.util.Dom.setStyle(dragEl,"visibility","visible");},_resizeProxy:function(){if(this.resizeFrame){var DOM=YAHOO.util.Dom;var el=this.getEl();var dragEl=this.getDragEl();var bt=parseInt(DOM.getStyle(dragEl,"borderTopWidth"),10);var br=parseInt(DOM.getStyle(dragEl,"borderRightWidth"),10);var bb=parseInt(DOM.getStyle(dragEl,"borderBottomWidth"),10);var bl=parseInt(DOM.getStyle(dragEl,"borderLeftWidth"),10);if(isNaN(bt)){bt=0;}
if(isNaN(br)){br=0;}
if(isNaN(bb)){bb=0;}
if(isNaN(bl)){bl=0;}
var newWidth=Math.max(0,el.offsetWidth-br-bl);var newHeight=Math.max(0,el.offsetHeight-bt-bb);DOM.setStyle(dragEl,"width",newWidth+"px");DOM.setStyle(dragEl,"height",newHeight+"px");}},b4MouseDown:function(e){this.setStartPosition();var x=YAHOO.util.Event.getPageX(e);var y=YAHOO.util.Event.getPageY(e);this.autoOffset(x,y);},b4StartDrag:function(x,y){this.showFrame(x,y);},b4EndDrag:function(e){YAHOO.util.Dom.setStyle(this.getDragEl(),"visibility","hidden");},endDrag:function(e){var DOM=YAHOO.util.Dom;var lel=this.getEl();var del=this.getDragEl();DOM.setStyle(del,"visibility","");DOM.setStyle(lel,"visibility","hidden");YAHOO.util.DDM.moveToEl(lel,del);DOM.setStyle(del,"visibility","hidden");DOM.setStyle(lel,"visibility","");},toString:function(){return("DDProxy "+this.id);}});YAHOO.util.DDTarget=function(id,sGroup,config){if(id){this.initTarget(id,sGroup,config);}};YAHOO.extend(YAHOO.util.DDTarget,YAHOO.util.DragDrop,{toString:function(){return("DDTarget "+this.id);}});YAHOO.register("dragdrop",YAHOO.util.DragDropMgr,{version:"2.3.0",build:"442"});