pdfmark.js/dist/jquery.mark.es6.min.js

Highlight keywords in pdfjs svg output. Based on mark.js.

/*!***************************************************
* pdfmark.js v1.2.4
* 
* Copyright (c) 2014–2018, Julian Kühnel
* Released under the MIT license https://git.io/vwTVl
*****************************************************/
!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e(require("jquery")):"function"==typeof define&&define.amd?define(["jquery"],e):t.Pdfmark=e(t.jQuery)}(this,function(t){"use strict";t=t&&t.hasOwnProperty("default")?t.default:t;class e{constructor(t,e=!0,s=[],r=5e3){this.ctx=t,this.iframes=e,this.exclude=s,this.iframesTimeout=r}static matches(t,e){const s="string"==typeof e?[e]:e,r=t.matches||t.matchesSelector||t.msMatchesSelector||t.mozMatchesSelector||t.oMatchesSelector||t.webkitMatchesSelector;if(r){let e=!1;return s.every(s=>!r.call(t,s)||(e=!0,!1)),e}return!1}getContexts(){let t,e=[];return(t=void 0!==this.ctx&&this.ctx?NodeList.prototype.isPrototypeOf(this.ctx)?Array.prototype.slice.call(this.ctx):Array.isArray(this.ctx)?this.ctx:"string"==typeof this.ctx?Array.prototype.slice.call(document.querySelectorAll(this.ctx)):[this.ctx]:[]).forEach(t=>{const 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s{constructor(t){this.opt=Object.assign({},{diacritics:!0,synonyms:{},accuracy:"partially",caseSensitive:!1,ignoreJoiners:!1,ignorePunctuation:[],wildcards:"disabled"},t)}create(t){return"disabled"!==this.opt.wildcards&&(t=this.setupWildcardsRegExp(t)),t=this.escapeStr(t),Object.keys(this.opt.synonyms).length&&(t=this.createSynonymsRegExp(t)),(this.opt.ignoreJoiners||this.opt.ignorePunctuation.length)&&(t=this.setupIgnoreJoinersRegExp(t)),this.opt.diacritics&&(t=this.createDiacriticsRegExp(t)),t=this.createMergedBlanksRegExp(t),(this.opt.ignoreJoiners||this.opt.ignorePunctuation.length)&&(t=this.createJoinersRegExp(t)),"disabled"!==this.opt.wildcards&&(t=this.createWildcardsRegExp(t)),t=this.createAccuracyRegExp(t),new RegExp(t,`gm${this.opt.caseSensitive?"":"i"}`)}escapeStr(t){return t.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g,"\\$&")}createSynonymsRegExp(t){const 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e?e:e.value,r="string"==typeof e?[]:e.limiters,i="";switch(r.forEach(t=>{i+=`|${this.escapeStr(t)}`}),s){case"partially":default:return`()(${t})`;case"complementary":return`()([^${i="\\s"+(i||this.escapeStr("!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~¡¿"))}]*${t}[^${i}]*)`;case"exactly":return`(^|\\s${i})(${t})(?=$|\\s${i})`}}}const r=(t,e)=>{for(let s in e)t.setAttribute(s,e[s])};class i{constructor(t){this.ctx=t,this.ie=!1;const e=window.navigator.userAgent;(e.indexOf("MSIE")>-1||e.indexOf("Trident")>-1)&&(this.ie=!0)}set opt(t){this._opt=Object.assign({},{element:"",className:"",exclude:[],iframes:!1,iframesTimeout:5e3,separateWordSearch:!0,acrossElements:!1,ignoreGroups:0,each:()=>{},noMatch:()=>{},filter:()=>!0,done:()=>{},debug:!1,log:window.console},t)}get opt(){return this._opt}get iterator(){return new e(this.ctx,this.opt.iframes,this.opt.exclude,this.opt.iframesTimeout)}log(t,e="debug"){const s=this.opt.log;this.opt.debug&&"object"==typeof s&&"function"==typeof s[e]&&s[e](`mark.js: 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${JSON.stringify(t)}`),this.opt.noMatch(t)),{start:s,end:r,valid:i}}checkWhitespaceRanges(t,e,s){let r,i=!0,n=s.length,o=e-n,a=parseInt(t.start,10)-o;return(r=(a=a>n?n:a)+parseInt(t.length,10))>n&&(r=n,this.log(`End range automatically set to the max value of ${n}`)),a<0||r-a<0||a>n||r>n?(i=!1,this.log(`Invalid range: ${JSON.stringify(t)}`),this.opt.noMatch(t)):""===s.substring(a,r).replace(/\s+/g,"")&&(i=!1,this.log("Skipping whitespace only range: "+JSON.stringify(t)),this.opt.noMatch(t)),{start:a,end:r,valid:i}}getTextNodes(t){let e="",s=[];this.iterator.forEachNode(NodeFilter.SHOW_TEXT,t=>{s.push({start:e.length,end:(e+=t.textContent).length,node:t})},t=>this.matchesExclude(t.parentNode)?NodeFilter.FILTER_REJECT:NodeFilter.FILTER_ACCEPT,()=>{t({value:e,nodes:s})})}matchesExclude(t){return e.matches(t,this.opt.exclude.concat(["script","style","title","head","html"]))}wrapInHtmlTag(t,e,s){const r=this.opt.element?this.opt.element:"mark",i=t.splitText(e),n=i.splitText(s-e);let o=document.createElement(r);return o.setAttribute("data-markjs","true"),this.opt.className&&o.setAttribute("class",this.opt.className),o.textContent=i.textContent,i.parentNode.replaceChild(o,i),n}getTextNodeOffset(t,e){return t?this.getTextNodeOffset(t.previousSibling,t.length+e):e}addSvgRectangle(t,e,s){const i=t.parentNode,n=t.parentNode.parentNode,o=t.parentNode.parentNode.parentNode,a=i.getAttribute("x").split(" "),h=this.getTextNodeOffset(t.previousSibling,0),c=e+h,l=s+h,d=document.createElementNS("http://www.w3.org/2000/svg","rect");r(d,{x:`${a[c]}px`,y:`${i.getAttribute("y")-parseInt(i.getAttribute("font-size"))}`,width:`${i.getEndPositionOfChar(l-1).x-parseFloat(a[c])}px`,height:i.getAttribute("font-size"),fill:"yellow",transform:n.getAttribute("transform"),"data-markjs":"true"}),o.insertBefore(d,n);const p=i.cloneNode(!0);return r(p,{x:a.slice(c,l).join(" "),fill:"black","data-markjs":"true"}),p.textContent=i.textContent.slice(c,l),n.insertBefore(p,i.nextSibling),t.splitText(e).splitText(s-e)}highlightRangeInTextNode(t,e,s){return"svg:tspan"===t.parentNode.nodeName?this.addSvgRectangle(t,e,s):this.wrapInHtmlTag(t,e,s)}highlightRangeInMappedTextNode(t,e,s,r,i){t.nodes.every((n,o)=>{const a=t.nodes[o+1];if(void 0===a||a.start>e){if(!r(n.node))return!1;const a=e-n.start,h=(s>n.end?n.end:s)-n.start,c=t.value.substr(0,n.start),l=t.value.substr(h+n.start);if(n.node=this.highlightRangeInTextNode(n.node,a,h),t.value=c+l,t.nodes.forEach((e,s)=>{s>=o&&(t.nodes[s].start>0&&s!==o&&(t.nodes[s].start-=h),t.nodes[s].end-=h)}),s-=h,i(n.node.previousSibling,n.start),!(s>n.end))return!1;e=n.end}return!0})}highlightGroups(t,e,s,r){return r((t=this.highlightRangeInTextNode(t,e,e+s)).previousSibling),t}separateGroups(t,e,s,r,i){let n=e.length;for(let s=1;s<n;s++){let n=t.textContent.indexOf(e[s]);e[s]&&n>-1&&r(e[s],t)&&(t=this.highlightGroups(t,n,e[s].length,i))}return t}highlightMatches(t,e,s,r,i){const n=0===e?0:e+1;this.getTextNodes(e=>{e.nodes.forEach(e=>{let i;for(e=e.node;null!==(i=t.exec(e.textContent))&&""!==i[n];){if(this.opt.separateGroups)e=this.separateGroups(e,i,n,s,r);else{if(!s(i[n],e))continue;let t=i.index;if(0!==n)for(let e=1;e<n;e++)t+=i[e].length;e=this.highlightGroups(e,t,i[n].length,r)}t.lastIndex=0}}),i()})}highlightMatchesAcrossElements(t,e,s,r,i){const n=0===e?0:e+1;this.getTextNodes(e=>{let o;for(;null!==(o=t.exec(e.value))&&""!==o[n];){let i=o.index;if(0!==n)for(let t=1;t<n;t++)i+=o[t].length;const a=i+o[n].length;this.highlightRangeInMappedTextNode(e,i,a,t=>s(o[n],t),(e,s)=>{t.lastIndex=s,r(e)})}i()})}highlightRangeFromIndex(t,e,s,r){this.getTextNodes(i=>{const n=i.value.length;t.forEach((t,r)=>{let{start:o,end:a,valid:h}=this.checkWhitespaceRanges(t,n,i.value);h&&this.highlightRangeInMappedTextNode(i,o,a,s=>e(s,t,i.value.substring(o,a),r),e=>{s(e,t)})}),r()})}unhighlightMatches(t){const e=t.parentNode;let s=document.createDocumentFragment();for(;t.firstChild;)"svg:text"===e.nodeName?t.removeChild(t.firstChild):s.appendChild(t.removeChild(t.firstChild));e.replaceChild(s,t),this.ie?this.normalizeTextNode(e):e.normalize()}normalizeTextNode(t){if(t){if(3===t.nodeType)for(;t.nextSibling&&3===t.nextSibling.nodeType;)t.nodeValue+=t.nextSibling.nodeValue,t.parentNode.removeChild(t.nextSibling);else this.normalizeTextNode(t.firstChild);this.normalizeTextNode(t.nextSibling)}}markRegExp(t,e){this.opt=e,this.log(`Searching with expression "${t}"`);let s=0,r="highlightMatches";this.opt.acrossElements&&(r="highlightMatchesAcrossElements"),this[r](t,this.opt.ignoreGroups,(t,e)=>this.opt.filter(e,t,s),t=>{s++,this.opt.each(t)},()=>{0===s&&this.opt.noMatch(t),this.opt.done(s)})}mark(t,e){this.opt=e;let r=0,i="highlightMatches";const{keywords:n,length:o}=this.getSeparatedKeywords("string"==typeof t?[t]:t),a=t=>{const e=new s(this.opt).create(t);let h=0;this.log(`Searching with expression "${e}"`),this[i](e,1,(e,s)=>this.opt.filter(s,t,r,h),t=>{h++,r++,this.opt.each(t)},()=>{0===h&&this.opt.noMatch(t),n[o-1]===t?this.opt.done(r):a(n[n.indexOf(t)+1])})};this.opt.acrossElements&&(i="highlightMatchesAcrossElements"),0===o?this.opt.done(r):a(n[0])}markRanges(t,e){this.opt=e;let s=0,r=this.checkRanges(t);r&&r.length?(this.log("Starting to mark with the following ranges: "+JSON.stringify(r)),this.highlightRangeFromIndex(r,(t,e,s,r)=>this.opt.filter(t,e,s,r),(t,e)=>{s++,this.opt.each(t,e)},()=>{this.opt.done(s)})):this.opt.done(s)}unmark(t){this.opt=t;let s=this.opt.element?this.opt.element:"*";s+="[data-markjs]",this.opt.className&&(s+=`.${this.opt.className}`),this.log(`Removal selector "${s}"`),this.iterator.forEachNode(NodeFilter.SHOW_ELEMENT,t=>{this.unhighlightMatches(t)},t=>{const r=e.matches(t,s),i=this.matchesExclude(t);return!r||i?NodeFilter.FILTER_REJECT:NodeFilter.FILTER_ACCEPT},this.opt.done)}}return t.fn.mark=function(t,e){return new i(this.get()).mark(t,e),this},t.fn.markRegExp=function(t,e){return new i(this.get()).markRegExp(t,e),this},t.fn.markRanges=function(t,e){return new i(this.get()).markRanges(t,e),this},t.fn.unmark=function(t){return new i(this.get()).unmark(t),this},t});