8 lines
22 KiB
JavaScript
8 lines
22 KiB
JavaScript
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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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*/;return function(){var e,t,n,r,o,i,u;function c(){(t=document.createElement("div")).classList.add("searchbox"),t.style.position="absolute",t.style.top="10px",t.style.right="10px",t.style.zIndex=10,t.innerHTML='<input type="search" class="searchinput" placeholder="Search..." style="vertical-align: top;"/>\n\t\t</span>',(n=t.querySelector(".searchinput")).style.width="240px",n.style.fontSize="14px",n.style.padding="4px 6px",n.style.color="#000",n.style.background="#fff",n.style.borderRadius="2px",n.style.border="0",n.style.outline="0",n.style.boxShadow="0 2px 18px rgba(0, 0, 0, 0.2)",n.style["-webkit-appearance"]="none",e.getRevealElement().appendChild(t),n.addEventListener("keyup",(function(t){if(13===t.keyCode)t.preventDefault(),function(){if(i){var t=n.value;""===t?(u&&u.remove(),r=null):(u=new l("slidecontent"),r=u.apply(t),o=0)}r&&(r.length&&r.length<=o&&(o=0),r.length>o&&(e.slide(r[o].h,r[o].v),o++))}(),i=!1;else i=!0}),!1),f()}function a(){t||c(),t.style.display="inline",n.focus(),n.select()}function f(){t||c(),t.style.display="none",u&&u.remove()}function l(t,n){var r=document.getElementById(t)||document.body,o=n||"EM",i=new RegExp("^(?:"+o+"|SCRIPT|FORM)$"),u=["#ff6","#a0ffff","#9f9","#f99","#f6f"],c=[],a=0,f="",l=[];this.setRegex=function(e){e=e.replace(/^[^\w]+|[^\w]+$/g,"").replace(/[^\w'-]+/g,"|"),f=new RegExp("("+e+")","i")},this.getRegex=function(){return f.toString().replace(/^\/\\b\(|\)\\b\/i$/g,"").replace(/\|/g," ")},this.hiliteWords=function(t){if(null!=t&&t&&f&&!i.test(t.nodeName)){if(t.hasChildNodes())for(var n=0;n<t.childNodes.length;n++)this.hiliteWords(t.childNodes[n]);var r,s;if(3==t.nodeType)if((r=t.nodeValue)&&(s=f.exec(r))){for(var p=t;null!=p&&"SECTION"!=p.nodeName;)p=p.parentNode;var d=e.getIndices(p),g=l.length,v=!1;for(n=0;n<g;n++)l[n].h===d.h&&l[n].v===d.v&&(v=!0);v||l.push(d),c[s[0].toLowerCase()]||(c[s[0].toLowerCase()]=u[a++%u.length]);var y=document.createElement(o);y.appendChild(document.createTextNode(s[0])),y.style.backgroundColor=c[s[0].toLowerCase()],y.style.fontStyle="inherit",y.style.color="#000";var h=t.splitText(s.index);h.nodeValue=h.nodeValue.substring(s[0].length),t.parentNode.insertBefore(y,h)}}},this.remove=function(){for(var e,t=document.getElementsByTagName(o);t.length&&(e=t[0]);)e.parentNode.replaceChild(e.firstChild,e)},this.apply=function(e){if(null!=e&&e)return this.remove(),this.setRegex(e),this.hiliteWords(r),l}}return{id:"search",init:function(n){(e=n).registerKeyboardShortcut("CTRL + Shift + F","Search"),document.addEventListener("keydown",(function(e){"F"==e.key&&(e.ctrlKey||e.metaKey)&&(e.preventDefault(),t||c(),"inline"!==t.style.display?a():f())}),!1)},open:a}}}));
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