jquery.truncate.min.js

(function($){"use strict";function findTruncPoint(dim,max,txt,start,end,$worker,token,reverse){var makeContent=function(content){return(reverse?token:"")+content+(reverse?"":token)};var opt1,opt2,mid,opt1dim,opt2dim;if(reverse){opt1=start===0?"":txt.slice(-start);opt2=txt.slice(-end)}else{opt1=txt.slice(0,start);opt2=txt.slice(0,end)}if(max<$worker.html(token)[dim]()){return 0}opt1dim=$worker.html(makeContent(opt2))[dim]();opt2dim=$worker.html(makeContent(opt1))[dim]();if(opt1dim<opt2dim){return end}mid=parseInt((start+end)/2,10);opt1=reverse?txt.slice(-mid):txt.slice(0,mid);$worker.html(makeContent(opt1));if($worker[dim]()===max){return mid}if($worker[dim]()>max){end=mid-1}else{start=mid+1}return findTruncPoint(dim,max,txt,start,end,$worker,token,reverse)}$.fn.truncate=function(options){if(!!options.center&&!options.side){options.side="center";delete options.center}if(!/^(left|right|center)$/.test(options.side)){delete options.side}var defaults={width:"auto",token:"&hellip;",side:"right",addclass:false,addtitle:false,multiline:false};options=$.extend(defaults,options);return this.each(function(){var $element=$(this);var fontCSS={fontFamily:$element.css("fontFamily"),fontSize:$element.css("fontSize"),fontStyle:$element.css("fontStyle"),fontWeight:$element.css("fontWeight"),"font-variant":$element.css("font-variant"),"text-indent":$element.css("text-indent"),"text-transform":$element.css("text-transform"),"letter-spacing":$element.css("letter-spacing"),"word-spacing":$element.css("word-spacing"),display:"none"};var elementText=$element.text();var $truncateWorker=$("<span/>").css(fontCSS).html(elementText).appendTo("body");var originalWidth=$truncateWorker.width();var truncateWidth=parseInt(options.width,10)||$element.width();var dimension="width";var truncatedText,originalDim,truncateDim;if(options.multiline){$truncateWorker.width($element.width());dimension="height";originalDim=$truncateWorker.height();truncateDim=$element.height()+1}else{originalDim=originalWidth;truncateDim=truncateWidth}if(originalDim>truncateDim){var truncPoint,truncPoint2;$truncateWorker.text("");if(options.side==="left"){truncPoint=findTruncPoint(dimension,truncateDim,elementText,0,elementText.length,$truncateWorker,options.token,true);truncatedText=[options.token,elementText.slice(-1*truncPoint)].join("")}else if(options.side==="center"){truncateDim=parseInt(truncateDim/2,10)-1;truncPoint=findTruncPoint(dimension,truncateDim,elementText,0,elementText.length,$truncateWorker,options.token,false);truncPoint2=findTruncPoint(dimension,truncateDim,elementText,0,elementText.length,$truncateWorker,"",true);truncatedText=[elementText.slice(0,truncPoint),options.token,elementText.slice(-1*truncPoint2)].join("")}else if(options.side==="right"){truncPoint=findTruncPoint(dimension,truncateDim,elementText,0,elementText.length,$truncateWorker,options.token,false);truncatedText=[elementText.slice(0,truncPoint),options.token].join("")}if(options.addclass){$element.addClass(options.addclass)}if(options.addtitle){$element.attr("title",elementText)}$element.empty().append(truncatedText)}$truncateWorker.remove()})}})(jQuery);