2 lines
6.3 KiB
JavaScript
2 lines
6.3 KiB
JavaScript
/*! rangeslider.js - v0.3.6 | (c) 2014 @andreruffert | MIT license | https://github.com/andreruffert/rangeslider.js */
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!function(a){"use strict";"function"==typeof define&&define.amd?define(["jquery"],a):a("object"==typeof exports?require("jquery"):jQuery)}(function(a){"use strict";function b(){var a=document.createElement("input");return a.setAttribute("type","range"),"text"!==a.type}function c(a,b){var c=Array.prototype.slice.call(arguments,2);return setTimeout(function(){return a.apply(null,c)},b)}function d(a,b){return b=b||100,function(){if(!a.debouncing){var c=Array.prototype.slice.apply(arguments);a.lastReturnVal=a.apply(window,c),a.debouncing=!0}return clearTimeout(a.debounceTimeout),a.debounceTimeout=setTimeout(function(){a.debouncing=!1},b),a.lastReturnVal}}function e(a){return 0!==a.offsetWidth||0!==a.offsetHeight?!1:!0}function f(a){for(var b=[],c=a.parentNode;e(c);)b.push(c),c=c.parentNode;return b}function g(a,b){var c=f(a),d=c.length,e=[],g=a[b];if(d){for(var h=0;d>h;h++)e[h]=c[h].style.display,c[h].style.display="block",c[h].style.height="0",c[h].style.overflow="hidden",c[h].style.visibility="hidden";g=a[b];for(var i=0;d>i;i++)c[i].style.display=e[i],c[i].style.height="",c[i].style.overflow="",c[i].style.visibility=""}return g}function h(b,e){if(this.$window=a(window),this.$document=a(document),this.$element=a(b),this.options=a.extend({},m,e),this._defaults=m,this._name=i,this.startEvent=this.options.startEvent.join("."+i+" ")+"."+i,this.moveEvent=this.options.moveEvent.join("."+i+" ")+"."+i,this.endEvent=this.options.endEvent.join("."+i+" ")+"."+i,this.polyfill=this.options.polyfill,this.onInit=this.options.onInit,this.onSlide=this.options.onSlide,this.onSlideEnd=this.options.onSlideEnd,this.polyfill&&l)return!1;this.identifier="js-"+i+"-"+k++,this.min=parseFloat(this.$element[0].getAttribute("min")||0),this.max=parseFloat(this.$element[0].getAttribute("max")||100),this.value=parseFloat(this.$element[0].value||this.min+(this.max-this.min)/2),this.step=parseFloat(this.$element[0].getAttribute("step")||1),this.$fill=a('<div class="'+this.options.fillClass+'" />'),this.$handle=a('<div class="'+this.options.handleClass+'" />'),this.$range=a('<div class="'+this.options.rangeClass+'" id="'+this.identifier+'" />').insertAfter(this.$element).prepend(this.$fill,this.$handle),this.$element.css({position:"absolute",width:"1px",height:"1px",overflow:"hidden",opacity:"0"}),this.handleDown=a.proxy(this.handleDown,this),this.handleMove=a.proxy(this.handleMove,this),this.handleEnd=a.proxy(this.handleEnd,this),this.init();var f=this;this.$window.on("resize."+i,d(function(){c(function(){f.update()},300)},20)),this.$document.on(this.startEvent,"#"+this.identifier+":not(."+this.options.disabledClass+")",this.handleDown),this.$element.on("change."+i,function(a,b){if(!b||b.origin!==i){var c=a.target.value,d=f.getPositionFromValue(c);f.setPosition(d)}})}var i="rangeslider",j=[],k=0,l=b(),m={polyfill:!0,rangeClass:"rangeslider",disabledClass:"rangeslider--disabled",fillClass:"rangeslider__fill",handleClass:"rangeslider__handle",startEvent:["mousedown","touchstart","pointerdown"],moveEvent:["mousemove","touchmove","pointermove"],endEvent:["mouseup","touchend","pointerup"]};h.prototype.init=function(){this.onInit&&"function"==typeof this.onInit&&this.onInit(),this.update()},h.prototype.update=function(){this.handleWidth=g(this.$handle[0],"offsetWidth"),this.rangeWidth=g(this.$range[0],"offsetWidth"),this.maxHandleX=this.rangeWidth-this.handleWidth,this.grabX=this.handleWidth/2,this.position=this.getPositionFromValue(this.value),this.$element[0].disabled?this.$range.addClass(this.options.disabledClass):this.$range.removeClass(this.options.disabledClass),this.setPosition(this.position)},h.prototype.handleDown=function(a){if(a.preventDefault(),this.$document.on(this.moveEvent,this.handleMove),this.$document.on(this.endEvent,this.handleEnd),!((" "+a.target.className+" ").replace(/[\n\t]/g," ").indexOf(this.options.handleClass)>-1)){var b=this.getRelativePosition(a),c=this.$range[0].getBoundingClientRect().left,d=this.getPositionFromNode(this.$handle[0])-c;this.setPosition(b-this.grabX),b>=d&&b<d+this.handleWidth&&(this.grabX=b-d)}},h.prototype.handleMove=function(a){a.preventDefault();var b=this.getRelativePosition(a);this.setPosition(b-this.grabX)},h.prototype.handleEnd=function(a){a.preventDefault(),this.$document.off(this.moveEvent,this.handleMove),this.$document.off(this.endEvent,this.handleEnd),this.onSlideEnd&&"function"==typeof this.onSlideEnd&&this.onSlideEnd(this.position,this.value)},h.prototype.cap=function(a,b,c){return b>a?b:a>c?c:a},h.prototype.setPosition=function(a){var b,c;b=this.getValueFromPosition(this.cap(a,0,this.maxHandleX))/this.step*this.step,c=this.getPositionFromValue(b),this.$fill[0].style.width=c+this.grabX+"px",this.$handle[0].style.left=c+"px",this.setValue(b),this.position=c,this.value=b,this.onSlide&&"function"==typeof this.onSlide&&this.onSlide(c,b)},h.prototype.getPositionFromNode=function(a){for(var b=0;null!==a;)b+=a.offsetLeft,a=a.offsetParent;return b},h.prototype.getRelativePosition=function(a){var b=this.$range[0].getBoundingClientRect().left,c=0;return"undefined"!=typeof a.pageX?c=a.pageX:"undefined"!=typeof a.originalEvent.clientX?c=a.originalEvent.clientX:a.originalEvent.touches&&a.originalEvent.touches[0]&&"undefined"!=typeof a.originalEvent.touches[0].clientX?c=a.originalEvent.touches[0].clientX:a.currentPoint&&"undefined"!=typeof a.currentPoint.x&&(c=a.currentPoint.x),c-b},h.prototype.getPositionFromValue=function(a){var b,c;return b=(a-this.min)/(this.max-this.min),c=b*this.maxHandleX},h.prototype.getValueFromPosition=function(a){var b,c;return b=a/(this.maxHandleX||1),c=this.step*Math.round(b*(this.max-this.min)/this.step)+this.min,Number(c.toFixed(2))},h.prototype.setValue=function(a){a!==this.value&&this.$element.val(a).trigger("change",{origin:i})},h.prototype.destroy=function(){this.$document.off(this.startEvent,"#"+this.identifier,this.handleDown),this.$element.off("."+i).removeAttr("style").removeData("plugin_"+i),this.$range&&this.$range.length&&this.$range[0].parentNode.removeChild(this.$range[0]),j.splice(j.indexOf(this.$element[0]),1),j.length||this.$window.off("."+i)},a.fn[i]=function(b){return this.each(function(){var c=a(this),d=c.data("plugin_"+i);d||(c.data("plugin_"+i,d=new h(this,b)),j.push(this)),"string"==typeof b&&d[b]()})}}); |