/*
 * YUI Extensions 0.33 RC2
 * Copyright(c) 2006, Jack Slocum.
 */


YAHOO.ext.Resizable=function(el,config){this.el=getEl(el);if(config&&config.wrap){config.resizeChild=this.el;this.el=this.el.wrap(typeof config.wrap=='object'?config.wrap:null);this.el.id=this.el.dom.id=config.resizeChild.id+'-rzwrap';this.el.setStyle('overflow','hidden');this.el.setPositioning(config.resizeChild.getPositioning());config.resizeChild.clearPositioning();if(!config.width||!config.height){var csize=config.resizeChild.getSize();this.el.setSize(csize.width,csize.height);}
if(config.pinned&&!config.adjustments){config.adjustments='auto';}}
this.proxy=this.el.createProxy({tag:'div',cls:'yresizable-proxy',id:this.el.id+'-rzproxy'})
this.proxy.unselectable();this.overlay=this.el.createProxy({tag:'div',cls:'yresizable-overlay',html:'&#160;'});this.overlay.unselectable();this.overlay.enableDisplayMode('block');this.overlay.mon('mousemove',this.onMouseMove,this,true);this.overlay.mon('mouseup',this.onMouseUp,this,true);YAHOO.ext.util.Config.apply(this,config,{resizeChild:false,adjustments:[0,0],minWidth:5,minHeight:5,maxWidth:10000,maxHeight:10000,enabled:true,animate:false,duration:.35,dynamic:false,handles:false,multiDirectional:false,disableTrackOver:false,easing:YAHOO.util.Easing?YAHOO.util.Easing.easeOutStrong:null,widthIncrement:0,heightIncrement:0,pinned:false,width:null,height:null,preserveRatio:false,transparent:false,minX:0,minY:0,draggable:false});if(this.pinned){this.disableTrackOver=true;this.el.addClass('yresizable-pinned');}
if(this.el.getStyle('position')!='absolute'){this.el.setStyle('position','relative');}
if(!this.handles){this.handles='s,e,se';if(this.multiDirectional){this.handles+=',n,w';}}
if(this.handles=='all'){this.handles='n s e w ne nw se sw';}
var hs=this.handles.split(/\s*?[,;]\s*?| /);var ps=YAHOO.ext.Resizable.positions;for(var i=0,len=hs.length;i<len;i++){if(hs[i]&&ps[hs[i]]){var pos=ps[hs[i]];this[pos]=new YAHOO.ext.Resizable.Handle(this,pos,this.disableTrackOver,this.transparent);}}
this.corner=this.southeast;this.activeHandle=null;if(this.resizeChild){if(typeof this.resizeChild=='boolean'){this.resizeChild=YAHOO.ext.Element.get(this.el.dom.firstChild,true);}else{this.resizeChild=YAHOO.ext.Element.get(this.resizeChild,true);}}
if(this.adjustments=='auto'){var rc=this.resizeChild;var hw=this.west,he=this.east,hn=this.north,hs=this.south;if(rc&&(hw||hn)){rc.setRelativePositioned();rc.setLeft(hw?hw.el.getWidth():0);rc.setTop(hn?hn.el.getHeight():0);}
this.adjustments=[(he?-he.el.getWidth():0)+(hw?-hw.el.getWidth():0),(hn?-hn.el.getHeight():0)+(hs?-hs.el.getHeight():0)-1];}
if(this.draggable){this.dd=this.dynamic?this.el.initDD(null):this.el.initDDProxy(null,{dragElId:this.proxy.id});this.dd.setHandleElId(this.resizeChild?this.resizeChild.id:this.el.id);}
this.events={'beforeresize':new YAHOO.util.CustomEvent(),'resize':new YAHOO.util.CustomEvent()};if(this.width!==null&&this.height!==null){this.resizeTo(this.width,this.height);}else{this.updateChildSize();}};YAHOO.extendX(YAHOO.ext.Resizable,YAHOO.ext.util.Observable,{resizeTo:function(width,height){this.el.setSize(width,height);this.updateChildSize();this.fireEvent('resize',this,width,height,null);},startSizing:function(e){this.fireEvent('beforeresize',this,e);if(this.enabled){this.resizing=true;this.startBox=this.el.getBox();this.startPoint=e.getXY();this.offsets=[(this.startBox.x+this.startBox.width)-this.startPoint[0],(this.startBox.y+this.startBox.height)-this.startPoint[1]];this.proxy.setBox(this.startBox);this.overlay.setSize(YAHOO.util.Dom.getDocumentWidth(),YAHOO.util.Dom.getDocumentHeight());this.overlay.show();if(!this.dynamic){this.proxy.show();}}},onMouseDown:function(handle,e){if(this.enabled){e.stopEvent();this.activeHandle=handle;this.overlay.setStyle('cursor',handle.el.getStyle('cursor'));this.startSizing(e);}},onMouseUp:function(e){var size=this.resizeElement();this.resizing=false;this.handleOut();this.overlay.hide();this.fireEvent('resize',this,size.width,size.height,e);},updateChildSize:function(){if(this.resizeChild){var el=this.el;var child=this.resizeChild;var adj=this.adjustments;if(el.dom.offsetWidth){var b=el.getSize(true);child.setSize(b.width+adj[0],b.height+adj[1]);}
if(YAHOO.ext.util.Browser.isIE){setTimeout(function(){if(el.dom.offsetWidth){var b=el.getSize(true);child.setSize(b.width+adj[0],b.height+adj[1]);}},10);}}},snap:function(value,inc,min){if(!inc||!value)return value;var newValue=value;var m=value%inc;if(m>0){if(m>(inc/2)){newValue=value+(inc-m);}else{newValue=value-m;}}
return Math.max(min,newValue);},resizeElement:function(){var box=this.proxy.getBox();this.el.setBox(box,false,this.animate,this.duration,null,this.easing);this.updateChildSize();this.proxy.hide();return box;},constrain:function(v,diff,m,mx){if(v-diff<m){diff=v-m;}else if(v-diff>mx){diff=mx-v;}
return diff;},onMouseMove:function(e){if(this.enabled){try{var curSize=this.curSize||this.startBox;var x=this.startBox.x,y=this.startBox.y;var ox=x,oy=y;var w=curSize.width,h=curSize.height;var ow=w,oh=h;var mw=this.minWidth,mh=this.minHeight;var mxw=this.maxWidth,mxh=this.maxHeight;var wi=this.widthIncrement;var hi=this.heightIncrement;var eventXY=e.getXY();var diffX=-(this.startPoint[0]-Math.max(this.minX,eventXY[0]));var diffY=-(this.startPoint[1]-Math.max(this.minY,eventXY[1]));var pos=this.activeHandle.position;switch(pos){case'east':w+=diffX;w=Math.min(Math.max(mw,w),mxw);break;case'south':h+=diffY;h=Math.min(Math.max(mh,h),mxh);break;case'southeast':w+=diffX;h+=diffY;w=Math.min(Math.max(mw,w),mxw);h=Math.min(Math.max(mh,h),mxh);break;case'north':diffY=this.constrain(h,diffY,mh,mxh);y+=diffY;h-=diffY;break;case'west':diffX=this.constrain(w,diffX,mw,mxw);x+=diffX;w-=diffX;break;case'northeast':w+=diffX;w=Math.min(Math.max(mw,w),mxw);diffY=this.constrain(h,diffY,mh,mxh);y+=diffY;h-=diffY;break;case'northwest':diffX=this.constrain(w,diffX,mw,mxw);diffY=this.constrain(h,diffY,mh,mxh);y+=diffY;h-=diffY;x+=diffX;w-=diffX;break;case'southwest':diffX=this.constrain(w,diffX,mw,mxw);h+=diffY;h=Math.min(Math.max(mh,h),mxh);x+=diffX;w-=diffX;break;}
var sw=this.snap(w,wi,mw);var sh=this.snap(h,hi,mh);if(sw!=w||sh!=h){switch(pos){case'northeast':y-=sh-h;break;case'north':y-=sh-h;break;case'southwest':x-=sw-w;break;case'west':x-=sw-w;break;case'northwest':x-=sw-w;y-=sh-h;break;}
w=sw;h=sh;}
if(this.preserveRatio){switch(pos){case'southeast':case'east':h=oh*(w/ow);h=Math.min(Math.max(mh,h),mxh);w=ow*(h/oh);break;case'south':w=ow*(h/oh);w=Math.min(Math.max(mw,w),mxw);h=oh*(w/ow);break;case'northeast':w=ow*(h/oh);w=Math.min(Math.max(mw,w),mxw);h=oh*(w/ow);break;case'north':var tw=w;w=ow*(h/oh);w=Math.min(Math.max(mw,w),mxw);h=oh*(w/ow);x+=(tw-w)/2;break;case'southwest':h=oh*(w/ow);h=Math.min(Math.max(mh,h),mxh);var tw=w;w=ow*(h/oh);x+=tw-w;break;case'west':var th=h;h=oh*(w/ow);h=Math.min(Math.max(mh,h),mxh);y+=(th-h)/2;var tw=w;w=ow*(h/oh);x+=tw-w;break;case'northwest':var tw=w;var th=h;h=oh*(w/ow);h=Math.min(Math.max(mh,h),mxh);w=ow*(h/oh);y+=th-h;x+=tw-w;break;}}
this.proxy.setBounds(x,y,w,h);if(this.dynamic){this.resizeElement();}}catch(e){}}},handleOver:function(){if(this.enabled){this.el.addClass('yresizable-over');}},handleOut:function(){if(!this.resizing){this.el.removeClass('yresizable-over');}},getEl:function(){return this.el;},getResizeChild:function(){return this.resizeChild;}});YAHOO.ext.Resizable.positions={n:'north',s:'south',e:'east',w:'west',se:'southeast',sw:'southwest',nw:'northwest',ne:'northeast'};YAHOO.ext.Resizable.Handle=function(rz,pos,disableTrackOver,transparent){if(!this.tpl){var tpl=YAHOO.ext.DomHelper.createTemplate({tag:'div',cls:'yresizable-handle yresizable-handle-{0}',html:'&#160;'});tpl.compile();YAHOO.ext.Resizable.Handle.prototype.tpl=tpl;}
this.position=pos;this.rz=rz;this.el=this.tpl.append(rz.el.dom,[this.position],true);this.el.unselectable();if(transparent){this.el.setOpacity(0);}
this.el.mon('mousedown',this.onMouseDown,this,true);if(!disableTrackOver){this.el.mon('mouseover',this.onMouseOver,this,true);this.el.mon('mouseout',this.onMouseOut,this,true);}};YAHOO.ext.Resizable.Handle.prototype={afterResize:function(rz){},onMouseDown:function(e){this.rz.onMouseDown(this,e);},onMouseOver:function(e){this.rz.handleOver(this,e);},onMouseOut:function(e){this.rz.handleOut(this,e);}};
