127 lines
4.7 KiB
JavaScript
127 lines
4.7 KiB
JavaScript
// A local search script with the help of [hexo-generator-search](https://github.com/PaicHyperionDev/hexo-generator-search)
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// Copyright (C) 2015
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// Joseph Pan <http://github.com/wzpan>
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// Shuhao Mao <http://github.com/maoshuhao>
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 2.1 of the
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// License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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// 02110-1301 USA
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//
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var searchFunc = function (path, search_id, content_id) {
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'use strict';
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var BTN = "<button type='button' class='local-search-close' id='local-search-close'></button>";
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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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var $resultContent = document.getElementById(content_id);
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$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.substr(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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if (str.indexOf('<li>') === -1) {
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return $resultContent.innerHTML = BTN + "<div class=\"search-result-empty\"><p><i class=\"fe fe-tired\"></i> 没有找到内容，更换下搜索词试试吧~<p></div>";
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}
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$resultContent.innerHTML = BTN + str;
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});
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}
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});
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$(document).on('click', '#local-search-close', function () {
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$('#local-search-input').val('');
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$('#local-search-result').html('');
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});
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}; |