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59 lines
2.1 KiB
JavaScript
59 lines
2.1 KiB
JavaScript
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(function($){
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/* Adapted from http://www.kryogenix.org/code/browser/searchhi/ */
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$.fn.highlightText = function(text, className) {
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function highlight(node) {
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if (node.nodeType == 3) { // Node.TEXT_NODE
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var val = node.nodeValue;
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var pos = val.toLowerCase().indexOf(text);
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if (pos >= 0 && !$.className.has(node.parentNode, className)) {
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var span = document.createElement("span");
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span.className = className;
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span.appendChild(document.createTextNode(val.substr(pos, text.length)));
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node.parentNode.insertBefore(span, node.parentNode.insertBefore(
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document.createTextNode(val.substr(pos + text.length)),
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node.nextSibling));
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node.nodeValue = val.substr(0, pos);
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}
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} else if (!$(node).is("button, select, textarea")) {
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$.each(node.childNodes, function() { highlight(this) });
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}
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}
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return this.each(function() { highlight(this) });
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}
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$(document).ready(function() {
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var elems = $(".searchable");
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if (!elems.length) return;
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function getSearchTerms(url) {
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if (url.indexOf("?") == -1) return [];
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var params = url.substr(url.indexOf("?") + 1).split("&");
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for (var p in params) {
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var param = params[p].split("=");
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if (param.length < 2) continue;
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if (param[0] == "q" || param[0] == "p") { // q= for Google, p= for Yahoo
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var query = decodeURIComponent(param[1].replace(/\+/g, " "));
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if (query[0] == "!") query = query.slice(1);
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var terms = [];
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$.each(query.split(/(".*?")|('.*?')|(\s+)/), function() {
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term = this.replace(/^\s+$/, "");
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if (term.length) {
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terms.push(term.replace(/^['"]/, "").replace(/['"]$/, ""));
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}
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});
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return terms;
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}
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}
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return [];
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}
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var terms = getSearchTerms(document.URL);
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if (!terms.length) terms = getSearchTerms(document.referrer);
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$.each(terms, function(idx) {
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elems.highlightText(this.toLowerCase(), "searchword" + (idx % 5));
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});
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});
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})(jQuery);
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