feat: 增加搜索功能和自定义 hexo 辅助函数
This commit is contained in:
XPoet
parent
1c51f444fa
commit
6ccb5d3cc6
21
_config.yml
21
_config.yml
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@ -72,3 +72,24 @@ busuanzi_count:
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page_pv: false
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page_pv_header:
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page_pv_footer:
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# Local Search
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# Dependencies: https://github.com/theme-next/hexo-generator-searchdb
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local_search:
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enable: true
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# If auto, trigger search by changing input.
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# If manual, trigger search by pressing enter key or search button.
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trigger: auto
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# Show top n results per article, show all results by setting to -1
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top_n_per_article: 1
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# Unescape html strings to the readable one.
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unescape: false
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# Preload the search data when the page loads.
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preload: false
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# Assets
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css: css
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js: js
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images: images
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@ -17,5 +17,5 @@ tag: Tag
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home: Home
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archive: Archives
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about: About
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site_uv: "UV: "
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site_pv: "PV: "
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site_uv: UV
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site_pv: PV
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@ -17,5 +17,5 @@ tag: 标签
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home: 首页
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archive: 归档
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about: 关于
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site_uv: 访问人数：
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site_pv: 总访问量：
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site_uv: 访问人数
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site_pv: 总访问量
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@ -28,4 +28,6 @@
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<%- favicon_tag(theme.favicon) %>
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<% } %>
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<%- css('css/style') %>
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<%- export_config() %>
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</head>
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@ -0,0 +1,27 @@
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<div class="search-pop-overlay">
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<div class="popup search-popup">
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<div class="search-header">
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<span class="search-icon">
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<i class="fa fa-search"></i>
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</span>
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<div class="search-input-container">
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<input autocomplete="off"
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autocorrect="off"
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autocapitalize="off"
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placeholder="<%= __('search') %>"
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spellcheck="false"
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type="search"
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class="search-input"
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>
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</div>
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<span class="popup-btn-close">
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<i class="fa fa-times-circle"></i>
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</span>
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</div>
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<div id="search-result">
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<div id="no-result">
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<i class="fa fa-spinner fa-pulse fa-5x fa-fw"></i>
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</div>
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</div>
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</div>
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</div>
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@ -20,4 +20,8 @@
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</li>
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<% } %>
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</ul>
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<% if (theme.local_search.enable) { %>
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<button class="search-btn btn popup-trigger"><i class="fa fa-search"></i> <%= __('search') %></button>
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<%- next_js('local-search.js') %>
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<% } %>
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</nav>
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@ -3,6 +3,12 @@
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<%- partial('common/head') %>
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<body>
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<%- body %>
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<div class="search-popup-container">
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<%- partial('common/local-search') %>
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</div>
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<%- partial('common/scripts') %>
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<% if (theme.local_search.enable) { %>
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<%- next_js('local-search.js') %>
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<% } %>
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</body>
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</html>
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@ -1,7 +1,7 @@
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<div class="right-side-container">
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<div class="nav-container animated">
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<%- partial('common/nav', { cache: true }) %>
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<%- partial('common/nav') %>
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</div>
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<div class="article-post-container animated">
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@ -0,0 +1,49 @@
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/* global hexo */
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'use strict';
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hexo.extend.helper.register('next_inject', function(point) {
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return hexo.theme.config.injects[point]
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.map(item => this.partial(item.layout, item.locals, item.options))
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.join('');
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});
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hexo.extend.helper.register('next_js', function(...urls) {
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const { js } = hexo.theme.config;
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return urls.map(url => this.js(`${js}/${url}`)).join('');
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});
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hexo.extend.helper.register('next_vendors', function(url) {
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if (url.startsWith('//')) return url;
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const internal = hexo.theme.config.vendors._internal;
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return this.url_for(`${internal}/${url}`);
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});
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hexo.extend.helper.register('post_edit', function(src) {
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const theme = hexo.theme.config;
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if (!theme.post_edit.enable) return '';
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return this.next_url(theme.post_edit.url + src, '<i class="fa fa-pencil"></i>', {
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class: 'post-edit-link',
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title: this.__('post.edit')
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});
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});
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hexo.extend.helper.register('post_nav', function(post) {
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const theme = hexo.theme.config;
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if (theme.post_navigation === false || (!post.prev && !post.next)) return '';
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const prev = theme.post_navigation === 'right' ? post.prev : post.next;
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const next = theme.post_navigation === 'right' ? post.next : post.prev;
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const left = prev ? `
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<a href="${this.url_for(prev.path)}" rel="prev" title="${prev.title}">
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<i class="fa fa-chevron-left"></i> ${prev.title}
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</a>` : '';
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const right = next ? `
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<a href="${this.url_for(next.path)}" rel="next" title="${next.title}">
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${next.title} <i class="fa fa-chevron-right"></i>
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</a>` : '';
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return `
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<div class="post-nav">
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<div class="post-nav-item">${left}</div>
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<div class="post-nav-item">${right}</div>
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</div>`;
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});
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@ -0,0 +1,25 @@
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/* global hexo */
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'use strict';
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const url = require('url');
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/**
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* Export theme config to js
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*/
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hexo.extend.helper.register('export_config', function() {
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let { config, theme } = this;
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let exportConfig = {
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hostname : url.parse(config.url).hostname || config.url,
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root : config.root,
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localsearch: theme.local_search,
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themeName: theme.theme_name,
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themeVersion: theme.theme_version
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};
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if (config.search) {
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exportConfig.path = config.search.path;
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}
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return `<script id="hexo-configurations">
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let CONFIG = ${JSON.stringify(exportConfig)};
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</script>`;
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});
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@ -0,0 +1,104 @@
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@require '../variables.styl'
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$icon-size = 18px;
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$keyword-red = #ff2a2a;
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.search-pop-overlay {
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background: rgba(0, 0, 0, .3);
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display: none;
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height: 100%;
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left: 0;
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position: fixed;
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top: 0;
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width: 100%;
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z-index: 1000;
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}
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.search-popup {
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background: #f5f5f5;
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border-radius: 5px;
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height: 80%;
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left: calc(50% - 350px);
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position: fixed;
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top: 10%;
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width: 700px;
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z-index: 1001;
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.search-icon, .popup-btn-close {
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color: $default-font-color;
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font-size: $icon-size;
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padding: 0 10px;
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}
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.popup-btn-close {
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cursor: pointer;
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&:hover .fa {
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color: #222;
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}
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}
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.search-header {
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background: #eee;
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border-top-left-radius: 5px;
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border-top-right-radius: 5px;
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display: flex;
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padding: 10px;
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}
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}
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input.search-input {
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background: transparent;
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border: 0;
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outline: 0;
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width: 100%;
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font-size: 16px;
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&::-webkit-search-cancel-button {
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display: none;
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}
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}
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.search-popup {
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.search-input-container {
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flex-grow: 1;
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padding: 2px;
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}
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ul.search-result-list {
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margin: 5px;
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padding: 0;
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width: 100%;
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}
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p.search-result {
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border-bottom: 1px dashed #ccc;
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padding: 5px 0;
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}
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a.search-result-title {
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font-weight: bold;
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}
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.search-keyword {
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border-bottom: 1px dashed $keyword-red;
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color: $keyword-red;
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font-weight: bold;
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}
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#search-result {
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display: flex;
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height: calc(100% - 55px);
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overflow: auto;
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padding: 5px 25px;
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}
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#no-result {
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color: #ccc;
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margin: auto;
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}
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}
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@ -39,6 +39,13 @@ $nav-font-size = 12px;
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}
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.search-btn {
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position: absolute;
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top: 50%;
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right: 20px;
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transform: translateY(-50%);
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}
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@media screen and (max-width: $media-max-width) {
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.fold-left-side-btn {
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display: none
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@ -9,7 +9,7 @@
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.nav-container {
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position: fixed;
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top: 0;
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width: 100%;
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width: 70%;
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height: $nav-height;
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z-index: 999;
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}
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@ -18,4 +18,14 @@
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background: $background-color;
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padding: 30px;
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}
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@media screen and (max-width: $media-max-width) {
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.nav-container {
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width: 100%;
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}
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}
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}
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@ -14,6 +14,7 @@
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@import "layout/tag-post.styl"
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@import "layout/common/site-info.styl"
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@import "layout/common/valine.styl"
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@import "layout/common/local-search.styl"
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@import "highlight"
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@import "layout/variables.styl"
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@import "markdown.styl"
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@ -0,0 +1,297 @@
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/* global CONFIG */
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window.addEventListener('DOMContentLoaded', () => {
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// Popup Window
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let isfetched = false;
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let datas;
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let isXml = true;
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// Search DB path
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let searchPath = CONFIG.path;
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if (searchPath.length === 0) {
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searchPath = 'search.xml';
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} else if (searchPath.endsWith('json')) {
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isXml = false;
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}
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const input = document.querySelector('.search-input');
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const resultContent = document.getElementById('search-result');
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// Ref: https://github.com/ForbesLindesay/unescape-html
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const unescapeHtml = html => {
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return String(html)
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.replace(/"/g, '"')
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.replace(/'/g, '\'')
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.replace(/:/g, ':')
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// Replace all the other &#x; chars
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.replace(/&#(\d+);/g, (m, p) => {
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return String.fromCharCode(p);
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})
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.replace(/</g, '<')
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.replace(/>/g, '>')
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.replace(/&/g, '&');
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};
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const getIndexByWord = (word, text, caseSensitive) => {
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let wordLen = word.length;
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if (wordLen === 0) return [];
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let startPosition = 0;
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let position = [];
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let index = [];
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if (!caseSensitive) {
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text = text.toLowerCase();
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word = word.toLowerCase();
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}
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while ((position = text.indexOf(word, startPosition)) > -1) {
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index.push({ position, word });
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startPosition = position + wordLen;
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}
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return index;
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};
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// Merge hits into slices
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const mergeIntoSlice = (start, end, index, searchText) => {
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let item = index[index.length - 1];
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let { position, word } = item;
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let hits = [];
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let searchTextCountInSlice = 0;
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while (position + word.length <= end && index.length !== 0) {
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if (word === searchText) {
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searchTextCountInSlice++;
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}
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hits.push({
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position,
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length: word.length
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});
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let wordEnd = position + word.length;
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// Move to next position of hit
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index.pop();
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while (index.length !== 0) {
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item = index[index.length - 1];
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position = item.position;
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word = item.word;
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if (wordEnd > position) {
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index.pop();
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} else {
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break;
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}
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}
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}
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return {
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hits,
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start,
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end,
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searchTextCount: searchTextCountInSlice
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};
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};
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// Highlight title and content
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const highlightKeyword = (text, slice) => {
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let result = '';
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let prevEnd = slice.start;
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slice.hits.forEach(hit => {
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result += text.substring(prevEnd, hit.position);
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let end = hit.position + hit.length;
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result += `<b class="search-keyword">${text.substring(hit.position, end)}</b>`;
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prevEnd = end;
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});
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result += text.substring(prevEnd, slice.end);
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return result;
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};
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const inputEventFunction = () => {
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if (!isfetched) return;
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let searchText = input.value.trim().toLowerCase();
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let keywords = searchText.split(/[-\s]+/);
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if (keywords.length > 1) {
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keywords.push(searchText);
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}
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let resultItems = [];
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if (searchText.length > 0) {
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// Perform local searching
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datas.forEach(({ title, content, url }) => {
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let titleInLowerCase = title.toLowerCase();
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let contentInLowerCase = content.toLowerCase();
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let indexOfTitle = [];
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let indexOfContent = [];
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let searchTextCount = 0;
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keywords.forEach(keyword => {
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indexOfTitle = indexOfTitle.concat(getIndexByWord(keyword, titleInLowerCase, false));
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indexOfContent = indexOfContent.concat(getIndexByWord(keyword, contentInLowerCase, false));
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});
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// Show search results
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if (indexOfTitle.length > 0 || indexOfContent.length > 0) {
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let hitCount = indexOfTitle.length + indexOfContent.length;
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// Sort index by position of keyword
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[indexOfTitle, indexOfContent].forEach(index => {
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index.sort((itemLeft, itemRight) => {
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if (itemRight.position !== itemLeft.position) {
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return itemRight.position - itemLeft.position;
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}
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return itemLeft.word.length - itemRight.word.length;
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});
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});
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let slicesOfTitle = [];
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if (indexOfTitle.length !== 0) {
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let tmp = mergeIntoSlice(0, title.length, indexOfTitle, searchText);
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searchTextCount += tmp.searchTextCountInSlice;
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slicesOfTitle.push(tmp);
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}
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let slicesOfContent = [];
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while (indexOfContent.length !== 0) {
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let item = indexOfContent[indexOfContent.length - 1];
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let { position, word } = item;
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// Cut out 100 characters
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let start = position - 20;
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let end = position + 80;
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if (start < 0) {
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start = 0;
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}
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if (end < position + word.length) {
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end = position + word.length;
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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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let tmp = mergeIntoSlice(start, end, indexOfContent, searchText);
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searchTextCount += tmp.searchTextCountInSlice;
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slicesOfContent.push(tmp);
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}
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// Sort slices in content by search text's count and hits' count
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slicesOfContent.sort((sliceLeft, sliceRight) => {
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if (sliceLeft.searchTextCount !== sliceRight.searchTextCount) {
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return sliceRight.searchTextCount - sliceLeft.searchTextCount;
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} else if (sliceLeft.hits.length !== sliceRight.hits.length) {
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return sliceRight.hits.length - sliceLeft.hits.length;
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}
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return sliceLeft.start - sliceRight.start;
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});
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// Select top N slices in content
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let upperBound = parseInt(CONFIG.localsearch.top_n_per_article, 10);
|
||||
if (upperBound >= 0) {
|
||||
slicesOfContent = slicesOfContent.slice(0, upperBound);
|
||||
}
|
||||
|
||||
let resultItem = '';
|
||||
|
||||
if (slicesOfTitle.length !== 0) {
|
||||
resultItem += `<li><a href="${url}" class="search-result-title">${highlightKeyword(title, slicesOfTitle[0])}</a>`;
|
||||
} else {
|
||||
resultItem += `<li><a href="${url}" class="search-result-title">${title}</a>`;
|
||||
}
|
||||
|
||||
slicesOfContent.forEach(slice => {
|
||||
resultItem += `<a href="${url}"><p class="search-result">${highlightKeyword(content, slice)}...</p></a>`;
|
||||
});
|
||||
|
||||
resultItem += '</li>';
|
||||
resultItems.push({
|
||||
item: resultItem,
|
||||
id : resultItems.length,
|
||||
hitCount,
|
||||
searchTextCount
|
||||
});
|
||||
}
|
||||
});
|
||||
}
|
||||
if (keywords.length === 1 && keywords[0] === '') {
|
||||
resultContent.innerHTML = '<div id="no-result"><i class="fa fa-search fa-5x"></i></div>';
|
||||
} else if (resultItems.length === 0) {
|
||||
resultContent.innerHTML = '<div id="no-result"><i class="fa fa-frown-o fa-5x"></i></div>';
|
||||
} else {
|
||||
resultItems.sort((resultLeft, resultRight) => {
|
||||
if (resultLeft.searchTextCount !== resultRight.searchTextCount) {
|
||||
return resultRight.searchTextCount - resultLeft.searchTextCount;
|
||||
} else if (resultLeft.hitCount !== resultRight.hitCount) {
|
||||
return resultRight.hitCount - resultLeft.hitCount;
|
||||
}
|
||||
return resultRight.id - resultLeft.id;
|
||||
});
|
||||
let searchResultList = '<ul class="search-result-list">';
|
||||
resultItems.forEach(result => {
|
||||
searchResultList += result.item;
|
||||
});
|
||||
searchResultList += '</ul>';
|
||||
resultContent.innerHTML = searchResultList;
|
||||
window.pjax && window.pjax.refresh(resultContent);
|
||||
}
|
||||
};
|
||||
|
||||
const fetchData = () => {
|
||||
fetch(CONFIG.root + searchPath)
|
||||
.then(response => response.text())
|
||||
.then(res => {
|
||||
// Get the contents from search data
|
||||
isfetched = true;
|
||||
datas = isXml ? [...new DOMParser().parseFromString(res, 'text/xml').querySelectorAll('entry')].map(element => {
|
||||
return {
|
||||
title : element.querySelector('title').textContent,
|
||||
content: element.querySelector('content').textContent,
|
||||
url : element.querySelector('url').textContent
|
||||
};
|
||||
}) : JSON.parse(res);
|
||||
// Only match articles with not empty titles
|
||||
datas = datas.filter(data => data.title).map(data => {
|
||||
data.title = data.title.trim();
|
||||
data.content = data.content ? data.content.trim().replace(/<[^>]+>/g, '') : '';
|
||||
if (CONFIG.localsearch.unescape) {
|
||||
data.content = unescapeHtml(data.content);
|
||||
}
|
||||
data.url = decodeURIComponent(data.url).replace(/\/{2,}/g, '/');
|
||||
return data;
|
||||
});
|
||||
// Remove loading animation
|
||||
document.getElementById('no-result').innerHTML = '<i class="fa fa-search fa-5x"></i>';
|
||||
});
|
||||
};
|
||||
|
||||
if (CONFIG.localsearch.preload) {
|
||||
fetchData();
|
||||
}
|
||||
|
||||
if (CONFIG.localsearch.trigger === 'auto') {
|
||||
if (input) {
|
||||
input.addEventListener('input', inputEventFunction);
|
||||
}
|
||||
|
||||
} else {
|
||||
document.querySelector('.search-icon').addEventListener('click', inputEventFunction);
|
||||
input.addEventListener('keypress', event => {
|
||||
if (event.key === 'Enter') {
|
||||
inputEventFunction();
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
// Handle and trigger popup window
|
||||
document.querySelectorAll('.popup-trigger').forEach(element => {
|
||||
element.addEventListener('click', () => {
|
||||
document.body.style.overflow = 'hidden';
|
||||
document.querySelector('.search-pop-overlay').style.display = 'block';
|
||||
input.focus();
|
||||
if (!isfetched) fetchData();
|
||||
});
|
||||
});
|
||||
|
||||
// Monitor main search box
|
||||
const onPopupClose = () => {
|
||||
document.body.style.overflow = '';
|
||||
document.querySelector('.search-pop-overlay').style.display = '';
|
||||
};
|
||||
|
||||
document.querySelector('.search-pop-overlay').addEventListener('click', event => {
|
||||
if (event.target === document.querySelector('.search-pop-overlay')) {
|
||||
onPopupClose();
|
||||
}
|
||||
});
|
||||
document.querySelector('.popup-btn-close').addEventListener('click', onPopupClose);
|
||||
window.addEventListener('pjax:success', onPopupClose);
|
||||
window.addEventListener('keyup', event => {
|
||||
if (event.key === 'Escape') {
|
||||
onPopupClose();
|
||||
}
|
||||
});
|
||||
});
|
||||
|
|
@ -1 +1,3 @@
|
|||
console.log('hexo-theme-ils v0.1.0');
|
||||
window.addEventListener('DOMContentLoaded', () => {
|
||||
console.log(`${CONFIG.themeName} v${CONFIG.themeVersion}`);
|
||||
});
|
||||
Loading…
Reference in New Issue