LightRange.min.js

// LightRange.js - A simple and lightweight selection, range and caret information library in native JavaScript, with an additional selection save & restore system. - https://github.com/n457/LightRange.js
// Version 2.2.0
// MIT License - Copyright (c) 2015 Bertrand Vignaud-Lerouge / n457 - https://github.com/n457
var LightRange=function(){};
LightRange.prototype.getSelectionInfo=function(){var a={};if(window.getSelection){var b=window.getSelection(),e=document.body.scrollTop,f=document.body.scrollLeft;if(0<b.rangeCount){var d=b.getRangeAt(0).cloneRange(),c=d.getBoundingClientRect();0===c.height&&(c=d.getClientRects()[0]);c&&(a.width=c.width,a.height=c.height,a.xStart=c.left+f,a.yStart=c.top+e);a.text=b.toString();a.charStart=d.startOffset;a.charEnd=d.endOffset;d.collapse(!1);if(c=d.getClientRects()[0])a.xEnd=c.left+f,a.yEnd=c.top+e}}else if(document.selection)b=
document.selection.createRange(),e=document.documentElement.scrollTop,f=document.documentElement.scrollLeft,a.width=b.boundingWidth,a.height=b.boundingHeight,a.xStart=b.boundingLeft+f,a.yStart=b.boundingTop+e,a.text=b.text,b.collapse(!1),a.xEnd=b.boundingLeft+f,a.yEnd=b.boundingTop+e;else return null;a.text?(a.characters=a.text.replace(/\s/g,"").length,a.charactersAll=a.text.replace(/[\n\r]/g,"").length):(a.characters=0,a.charactersAll=0);return a};
LightRange.prototype.saveSelection=function(){if(window.getSelection){var a=window.getSelection();if(a.getRangeAt&&a.rangeCount)return a.getRangeAt(0)}else return document.selection&&document.selection.createRange?document.selection.createRange():null};LightRange.prototype.restoreSelection=function(a){if(a){if(window.getSelection){var b=window.getSelection();b.removeAllRanges();b.addRange(a)}else if(document.selection&&a.select)a.select();else return null;return a}};var lightrange=new LightRange;