/*
* jQuery.splitter.js - animated splitter plugin
*
* version 1.0 (2010/01/02) 
* 
* Dual licensed under the MIT and GPL licenses: 
*   http://www.opensource.org/licenses/mit-license.php 
*   http://www.gnu.org/licenses/gpl.html 
*/

/**
* jQuery.splitter() plugin implements a two-pane resizable animated window, using existing DIV elements for layout.
* For more details and demo visit: http://krikus.com/js/splitter
*
* @example $("#splitterContainer").splitter({splitVertical:true,A:$('#leftPane'),B:$('#rightPane'),closeableto:0});
* @desc Create a vertical splitter with toggle button
*
* @example $("#splitterContainer").splitter({minAsize:100,maxAsize:300,splitVertical:true,A:$('#leftPane'),B:$('#rightPane'),slave:$("#rightSplitterContainer"),closeableto:0});
* @desc Create a vertical splitter with toggle button, with minimum and maximum width for plane A and bind resize event to the slave element
*
* @name splitter
* @type jQuery
* @param Object options Options for the splitter ( required)
* @cat Plugins/Splitter
* @return jQuery
* @author Kristaps Kukurs (contact@krikus.com)
*/

 

;(function($){

	$.fn.splitter = function(args){
		args = args || {};
		return this.each(function() {
			var _ghost;		//splitbar  ghosted element 
			var splitPos;	 // current splitting position
			var _splitPos;	 // saved splitting position
			var _initPos;	//initial mouse position
			var _ismovingNow=false;	// animaton state flag

			// Default opts
			var direction = (args.splitHorizontal? 'h':'v');
			var opts = $.extend({
			minAsize:0, //minimum width/height in PX of the first (A) div.
			maxAsize:0, //maximum width/height  in PX of the first (A) div.
			minBsize:0, //minimum width/height in PX of the second (B) div.
			maxBsize:0, //maximum width/height  in PX of the second (B) div.
			ghostClass: 'working',// class name for _ghosted splitter and hovered button
			invertClass: 'invert',//class name for invert splitter button
			animSpeed: 250 //animation speed in ms
			},{
			v:{ // Vertical
			moving:"left",sizing: "width", eventPos: "pageX",splitbarClass:"splitbarV",buttonClass: "splitbuttonV", cursor: "e-resize"
			},
			h: { // Horizontal 
			moving:"top",sizing: "height", eventPos: "pageY",splitbarClass:"splitbarH",buttonClass: "splitbuttonH",  cursor: "n-resize"
			}
			}[direction], args);

			//setup elements
			var splitter = $(this);
			var mychilds =splitter.children(); //$(">*", splitter[0]);
			var A = args.A;	// left/top frame
			var B = args.B;// right/bottom frame
			var slave=args.slave;//optional, elemt forced to receive resize event
//Create splitbar 
var C=$('<div><span></span></div>');
A.after(C);
C.attr({"class": opts.splitbarClass,unselectable:"on"}).css({"cursor":opts.cursor,"user-select": "none", "-webkit-user-select": "none","-khtml-user-select": "none", "-moz-user-select": "none"})
.bind("mousedown", startDrag);
 		
if(opts.closeableto!=undefined){
var Bt=$('<div></div>').css("cursor",'pointer');
C.append(Bt);
Bt.attr({"class": opts.buttonClass, unselectable: "on"});
Bt.hover(function(){$(this).addClass(opts.ghostClass);},function(){$(this).removeClass(opts.ghostClass);});
Bt.mousedown(function(e){if(e.target != this)return;Bt.toggleClass(opts.invertClass).hide();splitTo((splitPos==opts.closeableto)?_splitPos:opts.closeableto,true);return false;});
}		
//reset size to default.			
var perc=(((C.position()[opts.moving]-splitter.offset()[opts.moving])/splitter[opts.sizing]())*100).toFixed(1);
splitTo(perc,false,true); 
// resize  event handlers;
splitter.bind("resize",function(e, size){if(e.target!=this)return;splitTo(splitPos,false,true);});
$(window).bind("resize",function(){splitTo(splitPos,false,true);});

//C.onmousedown=startDrag
			function startDrag(e) {
			if(e.target != this)return;
		 _ghost = _ghost || C.clone(false).insertAfter(A);
				splitter._initPos=C.position();
				splitter._initPos[opts.moving]-=C[opts.sizing]();
_ghost.addClass(opts.ghostClass).css('position','absolute').css('z-index','250').css("-webkit-user-select", "none").width(C.width()).height(C.height()).css(opts.moving,splitter._initPos[opts.moving]);
mychilds.css("-webkit-user-select", "none");	// Safari selects A/B text on a move
A._posSplit = e[opts.eventPos];

$(document).bind("mousemove", performDrag).bind("mouseup", endDrag);
			}
//document.onmousemove=performDrag
			function performDrag(e) {
			if (!_ghost||!A) return;
				var incr = e[opts.eventPos]-A._posSplit;
				_ghost.css(opts.moving, splitter._initPos[opts.moving]+incr);
			}
//C.onmouseup=endDrag			
			function endDrag(e){
				var p=_ghost.position();
				_ghost.remove(); _ghost = null;	
				mychilds.css("-webkit-user-select", "text");// let Safari select text again
				$(document).unbind("mousemove", performDrag).unbind("mouseup", endDrag);
				var perc=(((p[opts.moving]-splitter.offset()[opts.moving])/splitter[opts.sizing]())*100).toFixed(1);		 
				splitTo(perc,(splitter._initPos[opts.moving]>p[opts.moving]),false); 
				splitter._initPos=0;
			}
//Perform actual splitting and animate it;					
	function splitTo(perc,reversedorder,fast) {
if(_ismovingNow||perc==undefined)return;//generally MSIE problem
_ismovingNow=true;
if(splitPos&&splitPos>10&&splitPos<90)//do not save accidental events
		_splitPos=splitPos;
splitPos=perc;

var barsize=C[opts.sizing]()+(2*parseInt(C.css('border-'+opts.moving+'-width')));//+ border. cehap&dirty
var splitsize=splitter[opts.sizing]();
if(opts.closeableto!=perc){
var percpx=Math.max(parseInt((splitsize/100)*perc),opts.minAsize);
if(opts.maxAsize)percpx=Math.min(percpx,opts.maxAsize);
}else{
var percpx=parseInt((splitsize/100)*perc,0);
}
if(opts.maxBsize){
if((splitsize-percpx)>opts.maxBsize)
percpx=splitsize-opts.maxBsize;
}
if(opts.minBsize){
if((splitsize-percpx)<opts.minBsize)
percpx=splitsize-opts.minBsize;
}
var sizeA=Math.max(0,(percpx-barsize));
var sizeB=Math.max(0,(splitsize-percpx));
splitsize=(splitsize-barsize);

//A.attr('title','- '+sizeA);  B.attr('title','- '+sizeB);
 if(fast){
					A.show().css(opts.sizing,sizeA+'px');
					B.show().css(opts.sizing,sizeB+'px');
					Bt.show();
					if (!$.browser.msie ){
					mychilds.trigger("resize");if(slave)slave.trigger("resize");
					}
				_ismovingNow=false;	
				return true;
				}				
	if(reversedorder){//reduces flickering if total percentage becomes more  than 100 (possible while animating)
					var anob={};
					anob[opts.sizing]=sizeA+'px';
					A.show().animate(anob,opts.animSpeed,function(){Bt.fadeIn('fast');if($(this)[opts.sizing]()<2){this.style.display='none';B.stop(true,true);B[opts.sizing](splitsize+'px');}});
					var anob2={};
					anob2[opts.sizing]=sizeB+'px';
					B.show().animate(anob2,opts.animSpeed,function(){Bt.fadeIn('fast');if($(this)[opts.sizing]()<2){this.style.display='none';A.stop(true,true);A[opts.sizing](splitsize+'px')}});
	}else{
					var anob={};
					anob[opts.sizing]=sizeB+'px';
					B.show().animate(anob,opts.animSpeed,function(){Bt.fadeIn('fast');if($(this)[opts.sizing]()<2){this.style.display='none';A.stop(true,true);A[opts.sizing](splitsize+'px')}});
					var anob={};
					anob[opts.sizing]=sizeA+'px';
					A.show().animate(anob,opts.animSpeed,function(){Bt.fadeIn('fast');if($(this)[opts.sizing]()<2){this.style.display='none';B.stop(true,true);B[opts.sizing](splitsize+'px');}});					
}	
//trigger resize evt
splitter.queue(function(){  
setTimeout(function(){  
splitter.dequeue();
_ismovingNow=false;
mychilds.trigger("resize");if(slave)slave.trigger("resize");		
}, opts.animSpeed+5);  
});
 
 }//end splitTo()
			
			
	


});//end each
	};//end splitter

})(jQuery);