264 lines
11 KiB
PHP
264 lines
11 KiB
PHP
<?php
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/**
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* Categories list (zibll widget categories depth).
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*
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* @package AKSRT
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*/
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namespace AKSRT\Widgets;
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defined('ABSPATH') || exit;
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class CategoriesWidget extends \WP_Widget {
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public function __construct() {
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parent::__construct(
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'aksrt_categories',
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esc_html__('AKSRT 分类目录', 'aksrt'),
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[
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'description' => esc_html__('以列表形式展示文章分类', 'aksrt'),
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'customize_selective_refresh' => true,
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'classname' => 'widget_aksrt_categories',
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]
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);
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}
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/** @return array<int,int> */
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public static function parse_ids_static(string $raw): array {
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if ($raw === '') {
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return [];
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}
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$ids = [];
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foreach (preg_split('/[\s,]+/', $raw) ?: [] as $p) {
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$id = (int) $p;
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if ($id > 0) {
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$ids[] = $id;
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}
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}
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return array_values(array_unique($ids));
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}
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/**
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* @param array<string,mixed> $instance
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*/
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public static function render_html(array $instance): string {
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$count = max(1, min(50, (int) ($instance['count'] ?? 8)));
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$orderby = sanitize_key((string) ($instance['orderby'] ?? 'count'));
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if (!in_array($orderby, ['count', 'name', 'id', 'slug'], true)) {
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$orderby = 'count';
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}
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$order = strtoupper((string) ($instance['order'] ?? 'DESC')) === 'ASC' ? 'ASC' : 'DESC';
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$hide_empty = !isset($instance['hide_empty']) || !empty($instance['hide_empty']);
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$hierarchical = !empty($instance['hierarchical']);
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$parent = max(0, (int) ($instance['parent'] ?? 0));
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$show_count = !isset($instance['show_count']) || !empty($instance['show_count']);
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$show_desc = !empty($instance['show_desc']);
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$show_thumb = !empty($instance['show_thumb']);
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$exclude = self::parse_ids_static((string) ($instance['exclude'] ?? ''));
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$include = self::parse_ids_static((string) ($instance['include'] ?? ''));
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$term_args = [
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'taxonomy' => 'category',
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'number' => $hierarchical ? 0 : $count,
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'orderby' => $orderby,
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'order' => $order,
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'hide_empty' => $hide_empty,
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'hierarchical' => $hierarchical,
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];
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if ($parent > 0) {
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$term_args['parent'] = $parent;
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} elseif ($hierarchical) {
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$term_args['parent'] = 0;
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}
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if ($include) {
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$term_args['include'] = $include;
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$term_args['orderby'] = 'include';
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unset($term_args['number']);
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}
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if ($exclude) {
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$term_args['exclude'] = $exclude;
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}
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$cats = get_categories($term_args);
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if (!$cats) {
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return function_exists('aksrt_get_ajax_null')
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? aksrt_get_ajax_null(__('暂无分类', 'aksrt'))
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: '<p class="widget-empty ajax-item">' . esc_html__('暂无分类', 'aksrt') . '</p>';
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}
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ob_start();
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$cls = 'widget-list aksrt-cat-list ajax-item' . ($hierarchical ? ' is-tree' : '') . ($show_thumb ? ' has-thumb' : '');
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echo '<ul class="' . esc_attr($cls) . '">';
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$n = 0;
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foreach ($cats as $cat) {
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if (!$hierarchical && $n >= $count) {
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break;
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}
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echo self::render_cat_item($cat, $show_count, $show_desc, $show_thumb, $hierarchical ? 0 : -1, $count, $n, $hide_empty, $orderby, $order);
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$n++;
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}
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echo '</ul>';
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return (string) ob_get_clean();
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}
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/**
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* @param \WP_Term $cat
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*/
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private static function render_cat_item($cat, bool $show_count, bool $show_desc, bool $show_thumb, int $depth, int $limit, int &$n, bool $hide_empty, string $orderby, string $order): string {
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if ($n > 0 && $limit > 0 && $n >= $limit && $depth >= 0) {
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return '';
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}
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$html = '<li class="aksrt-cat-list__item depth-' . max(0, $depth) . '">';
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$html .= '<a class="aksrt-cat-list__link" href="' . esc_url(get_category_link($cat->term_id)) . '">';
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if ($show_thumb) {
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$thumb = '';
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$img_id = (int) get_term_meta($cat->term_id, 'thumbnail_id', true);
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if (!$img_id) {
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$img_id = (int) get_term_meta($cat->term_id, '_aksrt_cover', true);
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}
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if ($img_id) {
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$thumb = (string) (wp_get_attachment_image_url($img_id, 'thumbnail') ?: '');
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}
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if ($thumb === '') {
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$thumb = (string) get_term_meta($cat->term_id, '_aksrt_cover_url', true);
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}
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if ($thumb !== '') {
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$ph = get_template_directory_uri() . '/assets/img/placeholder.svg';
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$html .= '<span class="aksrt-cat-list__thumb"><img class="aksrt-lazy lazyload" data-src="' . esc_url($thumb) . '" src="' . esc_url($ph) . '" alt="" loading="lazy" width="32" height="32" /></span>';
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} else {
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$html .= '<span class="aksrt-cat-list__thumb is-empty"><i class="fa fa-folder-o" aria-hidden="true"></i></span>';
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}
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}
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$html .= '<span class="aksrt-cat-list__text">';
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$html .= '<span class="aksrt-cat-list__name">' . esc_html($cat->name) . '</span>';
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if ($show_desc && $cat->description !== '') {
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$desc = wp_trim_words(wp_strip_all_tags((string) $cat->description), 12, '…');
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$html .= '<span class="aksrt-cat-list__desc muted-2-color em09">' . esc_html($desc) . '</span>';
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}
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$html .= '</span>';
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if ($show_count) {
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$html .= '<span class="count">' . (int) $cat->count . '</span>';
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}
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$html .= '</a>';
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if ($depth >= 0) {
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$children = get_categories([
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'taxonomy' => 'category',
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'parent' => (int) $cat->term_id,
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'hide_empty' => $hide_empty,
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'orderby' => $orderby,
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'order' => $order,
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]);
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if ($children) {
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$html .= '<ul class="aksrt-cat-list__children">';
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foreach ($children as $child) {
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$n++;
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if ($limit > 0 && $n > $limit) {
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break;
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}
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$html .= self::render_cat_item($child, $show_count, $show_desc, $show_thumb, $depth + 1, $limit, $n, $hide_empty, $orderby, $order);
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}
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$html .= '</ul>';
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}
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}
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$html .= '</li>';
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return $html;
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}
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/**
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* @param array<string,mixed> $args
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* @param array<string,mixed> $instance
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*/
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public function widget($args, $instance): void {
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echo $args['before_widget']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
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$title = apply_filters('widget_title', (string) ($instance['title'] ?? ''), $instance, $this->id_base);
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if ($title !== '') {
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echo $args['before_title'] . esc_html($title) . $args['after_title']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
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}
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echo self::render_html($instance); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
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echo $args['after_widget']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
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}
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/**
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* @param array<string,mixed> $instance
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*/
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public function form($instance): void {
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?>
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<p>
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<label><?php esc_html_e('标题:', 'aksrt'); ?>
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<input class="widefat" type="text" name="<?php echo esc_attr($this->get_field_name('title')); ?>" value="<?php echo esc_attr((string) ($instance['title'] ?? __('分类目录', 'aksrt'))); ?>">
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</label>
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</p>
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<p>
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<label><?php esc_html_e('显示数量:', 'aksrt'); ?>
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<input class="tiny-text" type="number" min="1" max="50" name="<?php echo esc_attr($this->get_field_name('count')); ?>" value="<?php echo esc_attr((string) ((int) ($instance['count'] ?? 8))); ?>">
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</label>
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</p>
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<p>
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<label><?php esc_html_e('排序', 'aksrt'); ?>
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<select name="<?php echo esc_attr($this->get_field_name('orderby')); ?>">
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<option value="count" <?php selected(($instance['orderby'] ?? 'count'), 'count'); ?>><?php esc_html_e('文章数', 'aksrt'); ?></option>
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<option value="name" <?php selected(($instance['orderby'] ?? ''), 'name'); ?>><?php esc_html_e('名称', 'aksrt'); ?></option>
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<option value="id" <?php selected(($instance['orderby'] ?? ''), 'id'); ?>><?php esc_html_e('ID', 'aksrt'); ?></option>
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<option value="slug" <?php selected(($instance['orderby'] ?? ''), 'slug'); ?>><?php esc_html_e('别名', 'aksrt'); ?></option>
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</select>
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</label>
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<select name="<?php echo esc_attr($this->get_field_name('order')); ?>">
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<option value="DESC" <?php selected(($instance['order'] ?? 'DESC'), 'DESC'); ?>><?php esc_html_e('降序', 'aksrt'); ?></option>
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<option value="ASC" <?php selected(($instance['order'] ?? ''), 'ASC'); ?>><?php esc_html_e('升序', 'aksrt'); ?></option>
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</select>
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</p>
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<p>
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<label><?php esc_html_e('父分类 ID（0=全部）', 'aksrt'); ?>
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<input class="tiny-text" type="number" min="0" name="<?php echo esc_attr($this->get_field_name('parent')); ?>" value="<?php echo esc_attr((string) ((int) ($instance['parent'] ?? 0))); ?>">
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</label>
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</p>
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<p>
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<label><?php esc_html_e('包含 ID', 'aksrt'); ?>
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<input class="widefat" type="text" name="<?php echo esc_attr($this->get_field_name('include')); ?>" value="<?php echo esc_attr((string) ($instance['include'] ?? '')); ?>">
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</label>
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</p>
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<p>
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<label><?php esc_html_e('排除 ID', 'aksrt'); ?>
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<input class="widefat" type="text" name="<?php echo esc_attr($this->get_field_name('exclude')); ?>" value="<?php echo esc_attr((string) ($instance['exclude'] ?? '')); ?>">
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</label>
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</p>
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<p>
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<label><input type="checkbox" name="<?php echo esc_attr($this->get_field_name('show_count')); ?>" value="1" <?php checked(!isset($instance['show_count']) || !empty($instance['show_count'])); ?>> <?php esc_html_e('显示数量', 'aksrt'); ?></label><br>
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<label><input type="checkbox" name="<?php echo esc_attr($this->get_field_name('show_desc')); ?>" value="1" <?php checked(!empty($instance['show_desc'])); ?>> <?php esc_html_e('显示描述', 'aksrt'); ?></label><br>
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<label><input type="checkbox" name="<?php echo esc_attr($this->get_field_name('show_thumb')); ?>" value="1" <?php checked(!empty($instance['show_thumb'])); ?>> <?php esc_html_e('显示封面', 'aksrt'); ?></label><br>
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<label><input type="checkbox" name="<?php echo esc_attr($this->get_field_name('hide_empty')); ?>" value="1" <?php checked(!isset($instance['hide_empty']) || !empty($instance['hide_empty'])); ?>> <?php esc_html_e('隐藏空分类', 'aksrt'); ?></label><br>
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<label><input type="checkbox" name="<?php echo esc_attr($this->get_field_name('hierarchical')); ?>" value="1" <?php checked(!empty($instance['hierarchical'])); ?>> <?php esc_html_e('层级树', 'aksrt'); ?></label>
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</p>
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<?php
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}
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/**
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* @param array<string,mixed> $new_instance
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* @param array<string,mixed> $old_instance
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* @return array<string,mixed>
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*/
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public function update($new_instance, $old_instance): array {
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$orderby = sanitize_key((string) ($new_instance['orderby'] ?? 'count'));
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if (!in_array($orderby, ['count', 'name', 'id', 'slug'], true)) {
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$orderby = 'count';
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}
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return [
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'title' => sanitize_text_field((string) ($new_instance['title'] ?? '')),
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'count' => max(1, min(50, (int) ($new_instance['count'] ?? 8))),
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'orderby' => $orderby,
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'order' => strtoupper((string) ($new_instance['order'] ?? 'DESC')) === 'ASC' ? 'ASC' : 'DESC',
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'parent' => max(0, (int) ($new_instance['parent'] ?? 0)),
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'include' => sanitize_text_field((string) ($new_instance['include'] ?? '')),
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'exclude' => sanitize_text_field((string) ($new_instance['exclude'] ?? '')),
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'show_count' => !empty($new_instance['show_count']) ? 1 : 0,
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'show_desc' => !empty($new_instance['show_desc']) ? 1 : 0,
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'show_thumb' => !empty($new_instance['show_thumb']) ? 1 : 0,
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'hide_empty' => !empty($new_instance['hide_empty']) ? 1 : 0,
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'hierarchical' => !empty($new_instance['hierarchical']) ? 1 : 0,
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];
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}
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}
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