mirror of https://github.com/jkjoy/sunpeiwen.git
102 lines
4.6 KiB
JavaScript
102 lines
4.6 KiB
JavaScript
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var searchFunc = function(path, search_id, content_id) {
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'use strict';
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$.ajax({
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url: path,
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dataType: "xml",
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success: function( xmlResponse ) {
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// get the contents from search data
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var datas = $( "entry", xmlResponse ).map(function() {
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return {
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title: $( "title", this ).text(),
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content: $("content",this).text(),
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url: $( "url" , this).text()
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};
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}).get();
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var $input = document.getElementById(search_id);
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if (!$input) return;
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var $resultContent = document.getElementById(content_id);
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if ($("#local-search-input").length > 0) {
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$input.addEventListener('input', function () {
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var str = '<ul class=\"search-result-list\">';
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var keywords = this.value.trim().toLowerCase().split(/[\s\-]+/);
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$resultContent.innerHTML = "";
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if (this.value.trim().length <= 0) {
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return;
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}
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// perform local searching
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datas.forEach(function (data) {
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var isMatch = true;
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var content_index = [];
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if (!data.title || data.title.trim() === '') {
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data.title = "Untitled";
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}
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var data_title = data.title.trim().toLowerCase();
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var data_content = data.content.trim().replace(/<[^>]+>/g, "").toLowerCase();
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var data_url = data.url;
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var index_title = -1;
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var index_content = -1;
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var first_occur = -1;
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// only match artiles with not empty contents
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if (data_content !== '') {
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keywords.forEach(function (keyword, i) {
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index_title = data_title.indexOf(keyword);
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index_content = data_content.indexOf(keyword);
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if (index_title < 0 && index_content < 0) {
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isMatch = false;
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} else {
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if (index_content < 0) {
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index_content = 0;
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}
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if (i == 0) {
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first_occur = index_content;
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}
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// content_index.push({index_content:index_content, keyword_len:keyword_len});
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}
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});
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} else {
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isMatch = false;
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}
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// show search results
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if (isMatch) {
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str += "<li><a href='" + data_url + "' class='search-result-title'>" + data_title + "</a>";
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var content = data.content.trim().replace(/<[^>]+>/g, "");
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if (first_occur >= 0) {
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// cut out 100 characters
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var start = first_occur - 20;
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var end = first_occur + 80;
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if (start < 0) {
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start = 0;
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}
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if (start == 0) {
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end = 100;
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}
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if (end > content.length) {
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end = content.length;
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}
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var match_content = content.substring(start, end);
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// highlight all keywords
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keywords.forEach(function (keyword) {
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var regS = new RegExp(keyword, "gi");
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match_content = match_content.replace(regS, "<em class=\"search-keyword\">" + keyword + "</em>");
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});
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str += "<p class=\"search-result\">" + match_content + "...</p>"
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}
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str += "</li>";
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}
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});
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str += "</ul>";
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$resultContent.innerHTML = str;
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});
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}
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}
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});
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} |