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updated Reveal.js to latest version
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/*!
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* Handles finding a text string anywhere in the slides and showing the next occurrence to the user
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* by navigatating to that slide and highlighting it.
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*
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* @author Jon Snyder <snyder.jon@gmail.com>, February 2013
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*/
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const Plugin = () => {
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// The reveal.js instance this plugin is attached to
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let deck;
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let searchElement;
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let searchButton;
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let searchInput;
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let matchedSlides;
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let currentMatchedIndex;
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let searchboxDirty;
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let hilitor;
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function render() {
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searchElement = document.createElement( 'div' );
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searchElement.classList.add( 'searchbox' );
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searchElement.style.position = 'absolute';
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searchElement.style.top = '10px';
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searchElement.style.right = '10px';
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searchElement.style.zIndex = 10;
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//embedded base64 search icon Designed by Sketchdock - http://www.sketchdock.com/:
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searchElement.innerHTML = `<input type="search" class="searchinput" placeholder="Search..." style="vertical-align: top;"/>
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</span>`;
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searchInput = searchElement.querySelector( '.searchinput' );
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searchInput.style.width = '240px';
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searchInput.style.fontSize = '14px';
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searchInput.style.padding = '4px 6px';
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searchInput.style.color = '#000';
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searchInput.style.background = '#fff';
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searchInput.style.borderRadius = '2px';
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searchInput.style.border = '0';
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searchInput.style.outline = '0';
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searchInput.style.boxShadow = '0 2px 18px rgba(0, 0, 0, 0.2)';
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searchInput.style['-webkit-appearance'] = 'none';
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deck.getRevealElement().appendChild( searchElement );
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// searchButton.addEventListener( 'click', function(event) {
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// doSearch();
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// }, false );
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searchInput.addEventListener( 'keyup', function( event ) {
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switch (event.keyCode) {
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case 13:
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event.preventDefault();
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doSearch();
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searchboxDirty = false;
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break;
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default:
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searchboxDirty = true;
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}
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}, false );
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closeSearch();
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}
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function openSearch() {
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if( !searchElement ) render();
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searchElement.style.display = 'inline';
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searchInput.focus();
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searchInput.select();
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}
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function closeSearch() {
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if( !searchElement ) render();
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searchElement.style.display = 'none';
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if(hilitor) hilitor.remove();
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}
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function toggleSearch() {
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if( !searchElement ) render();
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if (searchElement.style.display !== 'inline') {
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openSearch();
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}
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else {
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closeSearch();
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}
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}
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function doSearch() {
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//if there's been a change in the search term, perform a new search:
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if (searchboxDirty) {
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var searchstring = searchInput.value;
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if (searchstring === '') {
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if(hilitor) hilitor.remove();
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matchedSlides = null;
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}
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else {
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//find the keyword amongst the slides
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hilitor = new Hilitor("slidecontent");
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matchedSlides = hilitor.apply(searchstring);
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currentMatchedIndex = 0;
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}
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}
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if (matchedSlides) {
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//navigate to the next slide that has the keyword, wrapping to the first if necessary
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if (matchedSlides.length && (matchedSlides.length <= currentMatchedIndex)) {
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currentMatchedIndex = 0;
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}
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if (matchedSlides.length > currentMatchedIndex) {
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deck.slide(matchedSlides[currentMatchedIndex].h, matchedSlides[currentMatchedIndex].v);
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currentMatchedIndex++;
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}
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}
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}
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// Original JavaScript code by Chirp Internet: www.chirp.com.au
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// Please acknowledge use of this code by including this header.
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// 2/2013 jon: modified regex to display any match, not restricted to word boundaries.
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function Hilitor(id, tag) {
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var targetNode = document.getElementById(id) || document.body;
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var hiliteTag = tag || "EM";
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var skipTags = new RegExp("^(?:" + hiliteTag + "|SCRIPT|FORM)$");
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var colors = ["#ff6", "#a0ffff", "#9f9", "#f99", "#f6f"];
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var wordColor = [];
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var colorIdx = 0;
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var matchRegex = "";
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var matchingSlides = [];
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this.setRegex = function(input)
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{
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input = input.replace(/^[^\w]+|[^\w]+$/g, "").replace(/[^\w'-]+/g, "|");
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matchRegex = new RegExp("(" + input + ")","i");
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}
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this.getRegex = function()
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{
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return matchRegex.toString().replace(/^\/\\b\(|\)\\b\/i$/g, "").replace(/\|/g, " ");
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}
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// recursively apply word highlighting
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this.hiliteWords = function(node)
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{
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if(node == undefined || !node) return;
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if(!matchRegex) return;
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if(skipTags.test(node.nodeName)) return;
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if(node.hasChildNodes()) {
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for(var i=0; i < node.childNodes.length; i++)
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this.hiliteWords(node.childNodes[i]);
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}
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if(node.nodeType == 3) { // NODE_TEXT
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var nv, regs;
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if((nv = node.nodeValue) && (regs = matchRegex.exec(nv))) {
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//find the slide's section element and save it in our list of matching slides
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var secnode = node;
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while (secnode != null && secnode.nodeName != 'SECTION') {
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secnode = secnode.parentNode;
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}
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var slideIndex = deck.getIndices(secnode);
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var slidelen = matchingSlides.length;
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var alreadyAdded = false;
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for (var i=0; i < slidelen; i++) {
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if ( (matchingSlides[i].h === slideIndex.h) && (matchingSlides[i].v === slideIndex.v) ) {
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alreadyAdded = true;
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}
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}
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if (! alreadyAdded) {
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matchingSlides.push(slideIndex);
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}
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if(!wordColor[regs[0].toLowerCase()]) {
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wordColor[regs[0].toLowerCase()] = colors[colorIdx++ % colors.length];
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}
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var match = document.createElement(hiliteTag);
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match.appendChild(document.createTextNode(regs[0]));
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match.style.backgroundColor = wordColor[regs[0].toLowerCase()];
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match.style.fontStyle = "inherit";
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match.style.color = "#000";
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var after = node.splitText(regs.index);
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after.nodeValue = after.nodeValue.substring(regs[0].length);
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node.parentNode.insertBefore(match, after);
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}
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}
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};
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// remove highlighting
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this.remove = function()
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{
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var arr = document.getElementsByTagName(hiliteTag);
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var el;
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while(arr.length && (el = arr[0])) {
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el.parentNode.replaceChild(el.firstChild, el);
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}
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};
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// start highlighting at target node
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this.apply = function(input)
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{
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if(input == undefined || !input) return;
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this.remove();
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this.setRegex(input);
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this.hiliteWords(targetNode);
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return matchingSlides;
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};
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}
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return {
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id: 'search',
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init: reveal => {
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deck = reveal;
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deck.registerKeyboardShortcut( 'CTRL + Shift + F', 'Search' );
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document.addEventListener( 'keydown', function( event ) {
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if( event.key == "F" && (event.ctrlKey || event.metaKey) ) { //Control+Shift+f
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event.preventDefault();
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toggleSearch();
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}
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}, false );
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},
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open: openSearch
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}
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};
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export default Plugin;
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@@ -0,0 +1 @@
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@@ -0,0 +1 @@
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!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e="undefined"!=typeof globalThis?globalThis:e||self).RevealSearch=t()}(this,(function(){"use strict";var e="undefined"!=typeof globalThis?globalThis:"undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:{};function t(e,t,n){return e(n={path:t,exports:{},require:function(e,t){return function(){throw new Error("Dynamic requires are not currently supported by @rollup/plugin-commonjs")}(null==t&&n.path)}},n.exports),n.exports}var n=function(e){return e&&e.Math==Math&&e},r=n("object"==typeof globalThis&&globalThis)||n("object"==typeof window&&window)||n("object"==typeof self&&self)||n("object"==typeof e&&e)||Function("return this")(),o=function(e){try{return!!e()}catch(e){return!0}},i=!o((function(){return 7!=Object.defineProperty({},1,{get:function(){return 7}})[1]})),c=function(e){return"object"==typeof 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