https://www.storymuseum.org.uk/js/what-input.min.js

1/**
2 * what-input - A global utility for tracking the current input method (mouse, keyboard or touch).
3 * @version v5.1.2
4 * @link https://github.com/ten1seven/what-input
5 * @license MIT
6 */
7!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define("whatInput",[],t):"object"==typeof exports?exports.whatInput=t():e.whatInput=t()}(this,function(){return function(e){function t(o){if(n[o])return n[o].exports;var i=n[o]={exports:{},id:o,loaded:!1};return e[o].call(i.exports,i,i.exports,t),i.loaded=!0,i.exports}var n={};return t.m=e,t.c=n,t.p="",t(0)}([function(e,t){"use strict";e.exports=function(){if("undefined"==typeof document||"undefined"==typeof window)return{ask:function(){return"initial"},element:function(){return null},ignoreKeys:function(){},specificKeys:function(){},registerOnChange:function(){},unRegisterOnChange:function(){}};var e=document.documentElement,t=null,n="initial",o=n;try{window.sessionStorage.getItem("what-input")&&(n=window.sessionStorage.getItem("what-input")),window.sessionStorage.getItem("what-intent")&&(o=window.sessionStorage.getItem("what-intent"))}catch(e){}var i=null,r=["input","select","textarea"],u=[],s=[16,17,18,91,93],a=[],d={keydown:"keyboard",keyup:"keyboard",mousedown:"mouse",mousemove:"mouse",MSPointerDown:"pointer",MSPointerMove:"pointer",pointerdown:"pointer",pointermove:"pointer",touchstart:"touch"},c=!1,w=!1,f={x:null,y:null},p={2:"touch",3:"touch",4:"mouse"},l=!1;try{var m=Object.defineProperty({},"passive",{get:function(){l=!0}});window.addEventListener("test",null,m)}catch(e){}var h=function(){var e=!!l&&{passive:!0};window.PointerEvent?(window.addEventListener("pointerdown",v),window.addEventListener("pointermove",g)):window.MSPointerEvent?(window.addEventListener("MSPointerDown",v),window.addEventListener("MSPointerMove",g)):(window.addEventListener("mousedown",v),window.addEventListener("mousemove",g),"ontouchstart"in window&&(window.addEventListener("touchstart",x,e),window.addEventListener("touchend",v))),window.addEventListener(b(),g,e),window.addEventListener("keydown",x),window.addEventListener("keyup",x),window.addEventListener("focusin",E),window.addEventListener("focusout",L)},v=function(e){if(!c){var t=e.which,i=d[e.type];"pointer"===i&&(i=S(e));var u=!a.length&&-1===s.indexOf(t),w=a.length&&-1!==a.indexOf(t),f="keyboard"===i&&t&&(u||w)||"mouse"===i||"touch"===i;if(n!==i&&f){n=i;try{window.sessionStorage.setItem("what-input",n)}catch(e){}y("input")}if(o!==i&&f){var p=document.activeElement;if(p&&p.nodeName&&-1===r.indexOf(p.nodeName.toLowerCase())){o=i;try{window.sessionStorage.setItem("what-intent",o)}catch(e){}y("intent")}}}},y=function(t){e.setAttribute("data-what"+t,"input"===t?n:o),I(t)},g=function(e){if(k(e),!c&&!w){var t=d[e.type];if("pointer"===t&&(t=S(e)),o!==t){o=t;try{window.sessionStorage.setItem("what-intent",o)}catch(e){}y("intent")}}},E=function(n){if(!n.target.nodeName)return void L();t=n.target.nodeName.toLowerCase(),e.setAttribute("data-whatelement",t),n.target.classList&&n.target.classList.length&&e.setAttribute("data-whatclasses",n.target.classList.toString().replace(" ",","))},L=function(){t=null,e.removeAttribute("data-whatelement"),e.removeAttribute("data-whatclasses")},x=function(e){v(e),window.clearTimeout(i),c=!0,i=window.setTimeout(function(){c=!1},100)},S=function(e){return"number"==typeof e.pointerType?p[e.pointerType]:"pen"===e.pointerType?"touch":e.pointerType},b=function(){return"onwheel"in document.createElement("div")?"wheel":void 0!==document.onmousewheel?"mousewheel":"DOMMouseScroll"},I=function(e){for(var t=0,i=u.length;t<i;t++)u[t].type===e&&u[t].fn.call(void 0,"input"===e?n:o)},O=function(e){for(var t=0,n=u.length;t<n;t++)if(u[t].fn===e)return t},k=function(e){f.x!==e.screenX||f.y!==e.screenY?(w=!1,f.x=e.screenX,f.y=e.screenY):w=!0};return"addEventListener"in window&&Array.prototype.indexOf&&function(){d[b()]="mouse",h(),y("input"),y("intent")}(),{ask:function(e){return"intent"===e?o:n},element:function(){return t},ignoreKeys:function(e){s=e},specificKeys:function(e){a=e},registerOnChange:function(e,t){u.push({fn:e,type:t||"input"})},unRegisterOnChange:function(e){var t=O(e);(t||0===t)&&u.splice(t,1)}}}()}])});