if(!Control){
var Control={};
}
Control.Slider=Class.create();
Control.Slider.prototype={initialize:function(_1,_2,_3){
var _4=this;
if(_1 instanceof Array){
this.handles=_1.collect(function(e){
return $(e);
});
}else{
this.handles=[$(_1)];
}
this.track=$(_2);
this.options=_3||{};
this.axis=this.options.axis||"horizontal";
this.increment=this.options.increment||1;
this.step=parseInt(this.options.step||"1");
this.range=this.options.range||$R(0,1);
this.value=0;
this.values=this.handles.map(function(){
return 0;
});
this.spans=this.options.spans?this.options.spans.map(function(s){
return $(s);
}):false;
this.options.startSpan=$(this.options.startSpan||null);
this.options.endSpan=$(this.options.endSpan||null);
this.restricted=this.options.restricted||false;
this.maximum=this.options.maximum||this.range.end;
this.minimum=this.options.minimum||this.range.start;
this.alignX=parseInt(this.options.alignX||"0");
this.alignY=parseInt(this.options.alignY||"0");
this.trackLength=this.maximumOffset()-this.minimumOffset();
this.handleLength=this.isVertical()?this.handles[0].offsetHeight:this.handles[0].offsetWidth;
this.active=false;
this.dragging=false;
this.disabled=false;
if(this.options.disabled){
this.setDisabled();
}
this.allowedValues=this.options.values?this.options.values.sortBy(Prototype.K):false;
if(this.allowedValues){
this.minimum=this.allowedValues.min();
this.maximum=this.allowedValues.max();
}
this.eventMouseDown=this.startDrag.bindAsEventListener(this);
this.eventMouseUp=this.endDrag.bindAsEventListener(this);
this.eventMouseMove=this.update.bindAsEventListener(this);
this.handles.each(function(h,i){
i=_4.handles.length-1-i;
_4.setValue(parseFloat((_4.options.sliderValue instanceof Array?_4.options.sliderValue[i]:_4.options.sliderValue)||_4.range.start),i);
Element.makePositioned(h);
Event.observe(h,"mousedown",_4.eventMouseDown);
});
Event.observe(this.track,"mousedown",this.eventMouseDown);
Event.observe(document,"mouseup",this.eventMouseUp);
Event.observe(document,"mousemove",this.eventMouseMove);
this.initialized=true;
},dispose:function(){
var _9=this;
Event.stopObserving(this.track,"mousedown",this.eventMouseDown);
Event.stopObserving(document,"mouseup",this.eventMouseUp);
Event.stopObserving(document,"mousemove",this.eventMouseMove);
this.handles.each(function(h){
Event.stopObserving(h,"mousedown",_9.eventMouseDown);
});
},setDisabled:function(){
this.disabled=true;
},setEnabled:function(){
this.disabled=false;
},getNearestValue:function(_b){
if(this.allowedValues){
if(_b>=this.allowedValues.max()){
return (this.allowedValues.max());
}
if(_b<=this.allowedValues.min()){
return (this.allowedValues.min());
}
var _c=Math.abs(this.allowedValues[0]-_b);
var _d=this.allowedValues[0];
this.allowedValues.each(function(v){
var _f=Math.abs(v-_b);
if(_f<=_c){
_d=v;
_c=_f;
}
});
return _d;
}
if(_b>this.range.end){
return this.range.end;
}
if(_b<this.range.start){
return this.range.start;
}
return _b;
},setValue:function(_10,_11){
if(!this.active){
this.activeHandleIdx=_11||0;
this.activeHandle=this.handles[this.activeHandleIdx];
this.updateStyles();
}
_11=_11||this.activeHandleIdx||0;
if(this.initialized&&this.restricted){
if((_11>0)&&(_10<this.values[_11-1])){
_10=this.values[_11-1];
}
if((_11<(this.handles.length-1))&&(_10>this.values[_11+1])){
_10=this.values[_11+1];
}
}
_10=this.getNearestValue(_10);
this.values[_11]=_10;
this.value=this.values[0];
this.handles[_11].style[this.isVertical()?"top":"left"]=this.translateToPx(_10);
this.drawSpans();
if(!this.dragging||!this.event){
this.updateFinished();
}
},setValueBy:function(_12,_13){
this.setValue(this.values[_13||this.activeHandleIdx||0]+_12,_13||this.activeHandleIdx||0);
},translateToPx:function(_14){
return Math.round(((this.trackLength-this.handleLength)/(this.range.end-this.range.start))*(_14-this.range.start))+"px";
},translateToValue:function(_15){
return ((_15/(this.trackLength-this.handleLength)*(this.range.end-this.range.start))+this.range.start);
},getRange:function(_16){
var v=this.values.sortBy(Prototype.K);
_16=_16||0;
return $R(v[_16],v[_16+1]);
},minimumOffset:function(){
return (this.isVertical()?this.alignY:this.alignX);
},maximumOffset:function(){
return (this.isVertical()?this.track.offsetHeight-this.alignY:this.track.offsetWidth-this.alignX);
},isVertical:function(){
return (this.axis=="vertical");
},drawSpans:function(){
var _18=this;
if(this.spans){
$R(0,this.spans.length-1).each(function(r){
_18.setSpan(_18.spans[r],_18.getRange(r));
});
}
if(this.options.startSpan){
this.setSpan(this.options.startSpan,$R(0,this.values.length>1?this.getRange(0).min():this.value));
}
if(this.options.endSpan){
this.setSpan(this.options.endSpan,$R(this.values.length>1?this.getRange(this.spans.length-1).max():this.value,this.maximum));
}
},setSpan:function(_1a,_1b){
if(this.isVertical()){
_1a.style.top=this.translateToPx(_1b.start);
_1a.style.height=this.translateToPx(_1b.end-_1b.start+this.range.start);
}else{
_1a.style.left=this.translateToPx(_1b.start);
_1a.style.width=this.translateToPx(_1b.end-_1b.start+this.range.start);
}
},updateStyles:function(){
this.handles.each(function(h){
Element.removeClassName(h,"selected");
});
Element.addClassName(this.activeHandle,"selected");
},startDrag:function(_1d){
if(Event.isLeftClick(_1d)){
if(!this.disabled){
this.active=true;
var _1e=Event.element(_1d);
var _1f=[Event.pointerX(_1d),Event.pointerY(_1d)];
var _20=_1e;
if(_20==this.track){
var _21=Position.cumulativeOffset(this.track);
this.event=_1d;
this.setValue(this.translateToValue((this.isVertical()?_1f[1]-_21[1]:_1f[0]-_21[0])-(this.handleLength/2)));
var _21=Position.cumulativeOffset(this.activeHandle);
this.offsetX=(_1f[0]-_21[0]);
this.offsetY=(_1f[1]-_21[1]);
}else{
while((this.handles.indexOf(_1e)==-1)&&_1e.parentNode){
_1e=_1e.parentNode;
}
this.activeHandle=_1e;
this.activeHandleIdx=this.handles.indexOf(this.activeHandle);
this.updateStyles();
var _21=Position.cumulativeOffset(this.activeHandle);
this.offsetX=(_1f[0]-_21[0]);
this.offsetY=(_1f[1]-_21[1]);
}
}
Event.stop(_1d);
}
},update:function(_22){
if(this.active){
if(!this.dragging){
this.dragging=true;
}
this.draw(_22);
if(navigator.appVersion.indexOf("AppleWebKit")>0){
window.scrollBy(0,0);
}
Event.stop(_22);
}
},draw:function(_23){
var _24=[Event.pointerX(_23),Event.pointerY(_23)];
var _25=Position.cumulativeOffset(this.track);
_24[0]-=this.offsetX+_25[0];
_24[1]-=this.offsetY+_25[1];
this.event=_23;
this.setValue(this.translateToValue(this.isVertical()?_24[1]:_24[0]));
if(this.initialized&&this.options.onSlide){
this.options.onSlide(this.values.length>1?this.values:this.value,this);
}
},endDrag:function(_26){
if(this.active&&this.dragging){
this.finishDrag(_26,true);
Event.stop(_26);
}
this.active=false;
this.dragging=false;
},finishDrag:function(_27,_28){
this.active=false;
this.dragging=false;
this.updateFinished();
},updateFinished:function(){
if(this.initialized&&this.options.onChange){
this.options.onChange(this.values.length>1?this.values:this.value,this);
}
this.event=null;
}};