空笺未寄 v1.0 — 基于 DeepSeek UI 的 WordPress 主题

页面：首页、笺文、微言、拾影、文章详情、作者页功能：三种展示方式、tucao 自定义类型、评论、分页、灯箱 CSS：DeepSeek 原 CSS + 系统字体 + 头像本地化安装：激活主题后自动创建页面和导航，刷新固定链接即可
2026-05-03 20:35:41 +08:00
commit 85ce278768
15 changed files with 1142 additions and 0 deletions
@@ -0,0 +1,190 @@
+<?php
+/**
+ * 空笺未寄 — functions.php
+ */
+
+// ── 主题设置 ──────────────────────────────────
+add_action('after_setup_theme', 'kjweji_setup');
+function kjweji_setup() {
+    add_theme_support('title-tag');
+    add_theme_support('post-thumbnails');
+    add_image_size('kjweji-featured', 960, 400, true);
+    add_image_size('kjweji-card', 600, 375, true);
+    add_theme_support('custom-logo', array(
+        'height' => 40,
+        'width'  => 160,
+        'flex-height' => true,
+    ));
+    add_theme_support('html5', array(
+        'comment-form', 'comment-list', 'gallery', 'caption', 'style', 'script',
+    ));
+    register_nav_menus(array(
+        'primary' => '主导航',
+    ));
+}
+
+// ── 资源加载 ──────────────────────────────────
+add_action('wp_enqueue_scripts', 'kjweji_enqueue_assets');
+function kjweji_enqueue_assets() {
+    wp_enqueue_style('kjweji-style', get_stylesheet_uri(), array(), '1.0.0');
+    // 字体改用系统自带（Google Fonts 在中国大陆不可用）
+    wp_enqueue_script('kjweji-lightbox',
+        get_template_directory_uri() . '/assets/js/lightbox.js',
+        array(), '1.0.0', true);
+}
+
+// ── 注册自定义文章类型: tucao（微言） ──────────
+add_action('init', 'kjweji_register_tucao');
+function kjweji_register_tucao() {
+    register_post_type('tucao', array(
+        'labels' => array(
+            'name'               => '微言',
+            'singular_name'      => '微言',
+            'add_new'            => '写微言',
+            'add_new_item'       => '写一条微言',
+            'edit_item'          => '编辑微言',
+            'new_item'           => '新微言',
+            'view_item'          => '查看微言',
+            'search_items'       => '搜索微言',
+            'not_found'          => '暂无微言',
+            'not_found_in_trash' => '回收站中暂无微言',
+        ),
+        'public'            => true,
+        'has_archive'       => true,
+        'rewrite'           => array('slug' => 'tucao'),
+        'show_in_rest'      => true,
+        'supports'          => array('title', 'editor', 'author', 'thumbnail'),
+        'menu_position'     => 25,
+        'menu_icon'         => 'dashicons-format-chat',
+    ));
+}
+
+// ── 摘要取前 2-3 句 ───────────────────────────
+// 摘要：取文章内容的前 N 个字符（在句号处截断）
+function kjweji_excerpt($max_sentences = 5, $max_chars = 300) {
+    $content = get_the_content();
+    $content = wp_strip_all_tags($content);
+    if (empty($content)) return '';
+    // 先按字符截断
+    if (mb_strlen($content) > $max_chars) {
+        $content = mb_substr($content, 0, $max_chars);
+        // 回退到最后一个句号
+        $last_period = mb_strrpos($content, '。');
+        if ($last_period !== false && $last_period > $max_chars / 2) {
+            $content = mb_substr($content, 0, $last_period + 1);
+        }
+    }
+    return esc_html(trim($content));
+}
+
+// ── OG 标签 ───────────────────────────────────
+add_action('wp_head', 'kjweji_og_tags');
+function kjweji_og_tags() {
+    if (is_singular()) {
+        $title = get_the_title();
+        $desc  = kjweji_excerpt(2);
+        $url   = get_permalink();
+    } else {
+        $title = get_bloginfo('name');
+        $desc  = get_bloginfo('description');
+        $url   = home_url();
+    }
+    echo '<meta property="og:type" content="' . (is_singular() ? 'article' : 'website') . '" />' . "\n";
+    echo '<meta property="og:title" content="' . esc_attr($title) . '" />' . "\n";
+    echo '<meta property="og:description" content="' . esc_attr($desc) . '" />' . "\n";
+    echo '<meta property="og:url" content="' . esc_url($url) . '" />' . "\n";
+    if (is_singular() && has_post_thumbnail()) {
+        $img = get_the_post_thumbnail_url(null, 'kjweji-featured');
+        echo '<meta property="og:image" content="' . esc_url($img) . '" />' . "\n";
+    }
+    echo '<meta name="twitter:card" content="summary_large_image" />' . "\n";
+}
+
+// ── 首页只显示普通文章（非 tucao） ─────────────
+add_action('pre_get_posts', 'kjweji_home_only_posts');
+function kjweji_home_only_posts($query) {
+    if (!is_admin() && $query->is_main_query() && $query->is_home()) {
+        $query->set('post_type', 'post');
+    }
+}
+
+// 浏览量
+function kjweji_get_views() {
+    $count = get_post_meta(get_the_ID(), 'post_views', true);
+    return $count ? (int) $count : 0;
+}
+
+// 禁用 WP emoji 转图片
+remove_action('wp_head', 'print_emoji_detection_script', 7);
+remove_action('wp_print_styles', 'print_emoji_styles');
+remove_action('admin_print_scripts', 'print_emoji_detection_script');
+remove_action('admin_print_styles', 'print_emoji_styles');
+
+add_filter('emoji_svg_url', '__return_false');
+
+// 评论表单中文化
+add_filter('comment_form_default_fields', function($fields) {
+    $fields['author'] = '<p class="comment-form-author"><label for="author">显示名称</label><input id="author" name="author" type="text" size="30" /></p>';
+    $fields['email'] = '<p class="comment-form-email"><label for="email">邮箱</label><input id="email" name="email" type="email" size="30" /></p>';
+    $fields['url'] = '<p class="comment-form-url"><label for="url">网站</label><input id="url" name="url" type="url" size="30" /></p>';
+    $fields['cookies'] = '<p class="comment-form-cookies-consent"><input id="wp-comment-cookies-consent" name="wp-comment-cookies-consent" type="checkbox" value="yes" /><label for="wp-comment-cookies-consent">在此浏览器中保存我的信息</label></p>';
+    return $fields;
+});
+
+add_action('template_include', function($template) {
+    if (get_query_var('post_type') === 'post' && !is_home() && !is_singular()) {
+        $t = locate_template('archive.php');
+        if ($t) return $t;
+    }
+    return $template;
+});
+
+
+
+// 禁用 Gravatar — 本地默认头像
+add_filter('get_avatar', function($avatar, $id_or_email, $size, $default, $alt) {
+    // 用 data URI 的默认灰色圆圈替代
+    $svg = '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 40 40" width="' . $size . '" height="' . $size . '"><circle cx="20" cy="20" r="20" fill="#e0d6c5"/><circle cx="20" cy="15" r="7" fill="#c4826e"/><ellipse cx="20" cy="32" rx="13" ry="9" fill="#c4826e"/></svg>';
+    return '<span class="avatar-local" style="display:inline-flex;align-items:center;vertical-align:middle;width:' . $size . 'px;height:' . $size . 'px;border-radius:50%;overflow:hidden;">' . $svg . '</span>';
+}, 10, 5);
+
+// 激活主题时自动初始化
+add_action('after_switch_theme', 'kjweji_setup_pages');
+function kjweji_setup_pages() {
+    // 创建笺文页
+    if (!get_page_by_path('articles')) {
+        wp_insert_post([
+            'post_title' => '笺文', 'post_name' => 'articles',
+            'post_type' => 'page', 'post_status' => 'publish',
+            'meta_input' => ['_wp_page_template' => 'page-articles.php'],
+        ]);
+    }
+    // 创建拾影页
+    if (!get_page_by_path('photos')) {
+        wp_insert_post([
+            'post_title' => '拾影', 'post_name' => 'photos',
+            'post_type' => 'page', 'post_status' => 'publish',
+            'meta_input' => ['_wp_page_template' => 'page-photos.php'],
+        ]);
+    }
+    // 创建导航菜单
+    if (!wp_get_nav_menu_object('主导航')) {
+        $menu_id = wp_create_nav_menu('主导航');
+        foreach ([
+            ['首页', '/'],
+            ['笺文', '/articles/'],
+            ['微言', '/tucao/'],
+            ['拾影', '/photos/'],
+        ] as $item) {
+            wp_update_nav_menu_item($menu_id, 0, [
+                'menu-item-title' => $item[0],
+                'menu-item-url' => $item[1],
+                'menu-item-status' => 'publish',
+            ]);
+        }
+        $locations = get_theme_mod('nav_menu_locations') ?: [];
+        $locations['primary'] = $menu_id;
+        set_theme_mod('nav_menu_locations', $locations);
+    }
+    flush_rewrite_rules();
+}