/*!----------------------------------------------------------------------------\
|                                Slider 1.02                                  |
|-----------------------------------------------------------------------------|
|                         Created by Erik Arvidsson                           |
|                  (http://webfx.eae.net/contact.html#erik)                   |
|                      For WebFX (http://webfx.eae.net/)                      |
|-----------------------------------------------------------------------------|
| A  slider  control that  degrades  to an  input control  for non  supported |
| browsers.                                                                   |
|-----------------------------------------------------------------------------|
|                Copyright (c) 2002, 2003, 2006 Erik Arvidsson                |
|-----------------------------------------------------------------------------|
| Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| use this file except in compliance with the License.  You may obtain a copy |
| of the License at http://www.apache.org/licenses/LICENSE-2.0                |
| - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| Unless  required  by  applicable law or  agreed  to  in  writing,  software |
| distributed under the License is distributed on an  "AS IS" BASIS,  WITHOUT |
| WARRANTIES OR  CONDITIONS OF ANY KIND,  either express or implied.  See the |
| License  for the  specific language  governing permissions  and limitations |
| under the License.                                                          |
|-----------------------------------------------------------------------------|
| Dependencies: timer.js - an OO abstraction of timers                        |
|               range.js - provides the data model for the slider             |
|               winclassic.css or any other css file describing the look      |
|-----------------------------------------------------------------------------|
| 2002-10-14 | Original version released                                      |
| 2003-03-27 | Added a test in the constructor for missing oElement arg       |
| 2003-11-27 | Only use mousewheel when focused                               |
| 2006-05-28 | Changed license to Apache Software License 2.0.                |
|-----------------------------------------------------------------------------|
| Created 2002-10-14 | All changes are in the log above. | Updated 2006-05-28 |
\----------------------------------------------------------------------------*/
;Slider.isSupported=typeof document.createElement!="undefined"&&typeof document.documentElement!="undefined"&&typeof document.documentElement.offsetWidth=="number";function Slider(oElement,oInput,sOrientation){if(!oElement){return}this._orientation=sOrientation||"horizontal";this._range=new Range();this._range.setExtent(0);this._blockIncrement=10;this._unitIncrement=1;this._timer=new Timer(100);if(Slider.isSupported&&oElement){this.document=oElement.ownerDocument||oElement.document;this.element=oElement;this.element.slider=this;this.element.unselectable="on";this.element.className=this._orientation+" "+this.classNameTag+" "+this.element.className;this.line=this.document.createElement("DIV");this.line.className="line";this.line.unselectable="on";this.line.appendChild(this.document.createElement("DIV"));this.element.appendChild(this.line);this.handle=this.document.createElement("DIV");this.handle.className="handle";this.handle.unselectable="on";this.handle.appendChild(this.document.createElement("DIV"));this.handle.firstChild.appendChild(this.document.createTextNode(String.fromCharCode(160)));this.element.appendChild(this.handle)}this.input=oInput;var oThis=this;this._range.onchange=function(){oThis.recalculate();if(typeof oThis.onchange=="function"){oThis.onchange()}};if(Slider.isSupported&&oElement){this.element.onfocus=Slider.eventHandlers.onfocus;this.element.onblur=Slider.eventHandlers.onblur;this.element.onmousedown=Slider.eventHandlers.onmousedown;this.element.onmouseover=Slider.eventHandlers.onmouseover;this.element.onmouseout=Slider.eventHandlers.onmouseout;this.element.onkeydown=Slider.eventHandlers.onkeydown;this.element.onkeypress=Slider.eventHandlers.onkeypress;this.element.onmousewheel=Slider.eventHandlers.onmousewheel;this.handle.onselectstart=this.element.onselectstart=function(){return false};this._timer.ontimer=function(){oThis.ontimer()};window.setTimeout(function(){oThis.recalculate()},1)}else{this.input.onchange=function(e){oThis.setValue(oThis.input.value)}}}Slider.eventHandlers={getEvent:function(e,el){if(!e){if(el){e=el.document.parentWindow.event}else{e=window.event}}if(!e.srcElement){var el=e.target;while(el!=null&&el.nodeType!=1){el=el.parentNode}e.srcElement=el}if(typeof e.offsetX=="undefined"){e.offsetX=e.layerX;e.offsetY=e.layerY}return e},getDocument:function(e){if(e.target){return e.target.ownerDocument}return e.srcElement.document},getSlider:function(e){var el=e.target||e.srcElement;while(el!=null&&el.slider==null){el=el.parentNode}if(el){return el.slider}return null},getLine:function(e){var el=e.target||e.srcElement;while(el!=null&&el.className!="line"){el=el.parentNode}return el},getHandle:function(e){var el=e.target||e.srcElement;var re=/handle/;while(el!=null&&!re.test(el.className)){el=el.parentNode}return el},onfocus:function(e){var s=this.slider;s._focused=true;s.handle.className="handle hover"},onblur:function(e){var s=this.slider;s._focused=false;s.handle.className="handle"},onmouseover:function(e){e=Slider.eventHandlers.getEvent(e,this);var s=this.slider;if(e.srcElement==s.handle){s.handle.className="handle hover"}},onmouseout:function(e){e=Slider.eventHandlers.getEvent(e,this);var s=this.slider;if(e.srcElement==s.handle&&!s._focused){s.handle.className="handle"}},onmousedown:function(e){e=Slider.eventHandlers.getEvent(e,this);var s=this.slider;if(s.element.focus){s.element.focus()}Slider._currentInstance=s;var doc=s.document;if(doc.addEventListener){doc.addEventListener("mousemove",Slider.eventHandlers.onmousemove,true);doc.addEventListener("mouseup",Slider.eventHandlers.onmouseup,true)}else{if(doc.attachEvent){doc.attachEvent("onmousemove",Slider.eventHandlers.onmousemove);doc.attachEvent("onmouseup",Slider.eventHandlers.onmouseup);doc.attachEvent("onlosecapture",Slider.eventHandlers.onmouseup);s.element.setCapture()}}if(Slider.eventHandlers.getHandle(e)){Slider._sliderDragData={screenX:e.screenX,screenY:e.screenY,dx:e.screenX-s.handle.offsetLeft,dy:e.screenY-s.handle.offsetTop,startValue:s.getValue(),slider:s}}else{var lineEl=Slider.eventHandlers.getLine(e);s._mouseX=e.offsetX+(lineEl?s.line.offsetLeft:0);s._mouseY=e.offsetY+(lineEl?s.line.offsetTop:0);s._increasing=null;s.ontimer()}},onmousemove:function(e){e=Slider.eventHandlers.getEvent(e,this);if(Slider._sliderDragData){var s=Slider._sliderDragData.slider;var boundSize=s.getMaximum()-s.getMinimum();var size,pos,reset;if(s._orientation=="horizontal"){size=s.element.offsetWidth-s.handle.offsetWidth;pos=e.screenX-Slider._sliderDragData.dx;reset=Math.abs(e.screenY-Slider._sliderDragData.screenY)>100}else{size=s.element.offsetHeight-s.handle.offsetHeight;pos=s.element.offsetHeight-s.handle.offsetHeight-(e.screenY-Slider._sliderDragData.dy);reset=Math.abs(e.screenX-Slider._sliderDragData.screenX)>100}s.setValue(reset?Slider._sliderDragData.startValue:s.getMinimum()+boundSize*pos/size);return false}else{var s=Slider._currentInstance;if(s!=null){var lineEl=Slider.eventHandlers.getLine(e);s._mouseX=e.offsetX+(lineEl?s.line.offsetLeft:0);s._mouseY=e.offsetY+(lineEl?s.line.offsetTop:0)}}},onmouseup:function(e){e=Slider.eventHandlers.getEvent(e,this);var s=Slider._currentInstance;var doc=s.document;if(doc.removeEventListener){doc.removeEventListener("mousemove",Slider.eventHandlers.onmousemove,true);doc.removeEventListener("mouseup",Slider.eventHandlers.onmouseup,true)}else{if(doc.detachEvent){doc.detachEvent("onmousemove",Slider.eventHandlers.onmousemove);doc.detachEvent("onmouseup",Slider.eventHandlers.onmouseup);doc.detachEvent("onlosecapture",Slider.eventHandlers.onmouseup);s.element.releaseCapture()}}if(Slider._sliderDragData){Slider._sliderDragData=null}else{s._timer.stop();s._increasing=null}Slider._currentInstance=null},onkeydown:function(e){e=Slider.eventHandlers.getEvent(e,this);var s=this.slider;var kc=e.keyCode;switch(kc){case 33:s.setValue(s.getValue()+s.getBlockIncrement());break;case 34:s.setValue(s.getValue()-s.getBlockIncrement());break;case 35:s.setValue(s.getOrientation()=="horizontal"?s.getMaximum():s.getMinimum());break;case 36:s.setValue(s.getOrientation()=="horizontal"?s.getMinimum():s.getMaximum());break;case 38:case 39:s.setValue(s.getValue()+s.getUnitIncrement());break;case 37:case 40:s.setValue(s.getValue()-s.getUnitIncrement());break}if(kc>=33&&kc<=40){return false}},onkeypress:function(e){e=Slider.eventHandlers.getEvent(e,this);var kc=e.keyCode;if(kc>=33&&kc<=40){return false}},onmousewheel:function(e){e=Slider.eventHandlers.getEvent(e,this);var s=this.slider;if(s._focused){s.setValue(s.getValue()+e.wheelDelta/120*s.getUnitIncrement());return false}}};Slider.prototype.classNameTag="dynamic-slider-control",Slider.prototype.setValue=function(v){try{this._range.setValue(v);this.input.value=this.getValue()}catch(e){return}};Slider.prototype.getValue=function(){return this._range.getValue()};Slider.prototype.setMinimum=function(v){this._range.setMinimum(v);this.input.value=this.getValue()};Slider.prototype.getMinimum=function(){return this._range.getMinimum()};Slider.prototype.setMaximum=function(v){this._range.setMaximum(v);this.input.value=this.getValue()};Slider.prototype.getMaximum=function(){return this._range.getMaximum()};Slider.prototype.setUnitIncrement=function(v){this._unitIncrement=v};Slider.prototype.getUnitIncrement=function(){return this._unitIncrement};Slider.prototype.setBlockIncrement=function(v){this._blockIncrement=v};Slider.prototype.getBlockIncrement=function(){return this._blockIncrement};Slider.prototype.getOrientation=function(){return this._orientation};Slider.prototype.setOrientation=function(sOrientation){if(sOrientation!=this._orientation){if(Slider.isSupported&&this.element){this.element.className=this.element.className.replace(this._orientation,sOrientation)}this._orientation=sOrientation;this.recalculate()}};Slider.prototype.recalculate=function(){if(!Slider.isSupported||!this.element){return}var w=this.element.offsetWidth;var h=this.element.offsetHeight;var hw=this.handle.offsetWidth;var hh=this.handle.offsetHeight;var lw=this.line.offsetWidth;var lh=this.line.offsetHeight;if(this._orientation=="horizontal"){try{this.handle.style.left=(w-hw)*(this.getValue()-this.getMinimum())/(this.getMaximum()-this.getMinimum())+"px";this.handle.style.top=(h-hh)/2+"px";this.line.style.top=(h-lh)/2+"px";this.line.style.left=hw/2+"px";this.line.style.width=Math.max(0,w-hw-2)+"px";this.line.firstChild.style.width=Math.max(0,w-hw-4)+"px"}catch(e){}}else{this.handle.style.left=(w-hw)/2+"px";this.handle.style.top=h-hh-(h-hh)*(this.getValue()-this.getMinimum())/(this.getMaximum()-this.getMinimum())+"px";this.line.style.left=(w-lw)/2+"px";this.line.style.top=hh/2+"px";this.line.style.height=Math.max(0,h-hh-2)+"px";this.line.firstChild.style.height=Math.max(0,h-hh-4)+"px"}};Slider.prototype.ontimer=function(){var hw=this.handle.offsetWidth;var hh=this.handle.offsetHeight;var hl=this.handle.offsetLeft;var ht=this.handle.offsetTop;if(this._orientation=="horizontal"){if(this._mouseX>hl+hw&&(this._increasing==null||this._increasing)){this.setValue(this.getValue()+this.getBlockIncrement());this._increasing=true}else{if(this._mouseX<hl&&(this._increasing==null||!this._increasing)){this.setValue(this.getValue()-this.getBlockIncrement());this._increasing=false}}}else{if(this._mouseY>ht+hh&&(this._increasing==null||!this._increasing)){this.setValue(this.getValue()-this.getBlockIncrement());this._increasing=false}else{if(this._mouseY<ht&&(this._increasing==null||this._increasing)){this.setValue(this.getValue()+this.getBlockIncrement());this._increasing=true}}}this._timer.start()};