$v->show_ui && $v->public ? wpjam_set($c, $k, wpjam_get_taxonomy_setting($k, 'title')) : $c, []);
$show_if = ['term_thumbnail_type', '!=', ''];
$term_fields = [
'type' => ['options'=>[''=>'关闭分类缩略图', 'img'=>'本地媒体模式', 'image'=>'输入图片链接模式']],
'taxonomies' => ['type'=>'checkbox', 'before'=>'支持的分类模式：', 'show_if'=>$show_if, 'options'=>$tax_options],
'size' => ['type'=>'size', 'before'=>'缩略图尺寸：', 'show_if'=>$show_if],
];
$tax_options = wpjam_map($tax_options, fn($v, $k)=> ['title'=>$v, 'show_if'=>['term_thumbnail_taxonomies', 'IN', $k]]);
$order_options = [
'' => '请选择来源',
'first' => '第一张图',
'post_meta' => [
'label' => '自定义字段',
'fields' => ['post_meta'=>['type'=>'text', 'class'=>'all-options', 'placeholder'=>'请输入自定义字段的 meta_key']]
],
'term' =>[
'label' => '分类缩略图',
'show_if' => ['term_thumbnail_type', 'IN', ['img','image']],
'fields' => ['taxonomy'=>['options'=>[''=>'请选择分类模式']+$tax_options]]
]
];
return [
'auto' => ['title'=>'缩略图设置', 'type'=>'radio', 'direction'=>'column', 'options'=>[
0 =>'修改主题代码，手动使用 WPJAM 的缩略图函数。',
1 =>'无需修改主题，自动应用 WPJAM 的缩略图设置。'
]],
'pdf' => ['title'=>'PDF预览图', 'name'=>'disable_pdf_preview', 'label'=>'屏蔽 PDF 生成预览图功能。'],
'default' => ['title'=>'默认缩略图', 'type'=>'mu-img', 'item_type'=>'url'],
'term_set' => ['title'=>'分类缩略图', 'prefix'=>'term_thumbnail', 'fields'=>$term_fields],
'post_thumbnail_orders' => ['title'=>'文章缩略图', 'type'=>'mu-fields', 'group'=>true, 'max_items'=>5, 'before'=>'首先使用文章特色图片，如未设置，将按照下面的顺序获取：
', 'fields'=>['type'=>['options'=>$order_options]]]
];
}
public static function get_default(){
$default = self::get_setting('default', []);
$default = $default && is_array($default) ? $default[array_rand($default)] : '';
return apply_filters('wpjam_default_thumbnail_url', $default);
}
public static function get_post_thumbnail_url($post, $order=null){
if($order){
if($order['type'] == 'first'){
return wpjam_get_post_first_image_url($post);
}elseif($order['type'] == 'post_meta'){
if(!empty($order['post_meta'])){
return get_post_meta($post->ID, $order['post_meta'], true);
}
}elseif($order['type'] == 'term'){
if($order['taxonomy'] && is_object_in_taxonomy($post, $order['taxonomy'])){
return wpjam_find(get_the_terms($post, $order['taxonomy']) ?: [], fn($v)=> $v, fn($term)=> wpjam_get_term_thumbnail_url($term));
}
}
}else{
foreach(self::get_setting('post_thumbnail_orders') ?: [] as $order){
if($order && ($url = self::get_post_thumbnail_url($post, $order))){
return $url;
}
}
}
}
public static function get_post_thumbnail_html($post_id, $size, $attr){
if(self::get_setting('auto')){
$src = wpjam_get_post_thumbnail_url($post_id, wpjam_parse_size($size, 2));
}else{
$images = wpjam_get_post_images($post_id, false);
$src = $images ? wpjam_get_thumbnail(array_first($images), wpjam_parse_size($size, 2)) : '';
}
if($src){
$name = is_array($size) ? join('x', $size) : $size;
$attr = wp_parse_args($attr, ['src'=>$src, 'class'=>"attachment-$name size-$name wp-post-image", 'decoding'=>'async', 'loading'=>'lazy']);
return (string)wpjam_tag('img', $attr)->attr(wpjam_pick(wpjam_parse_size($size), ['width', 'height']));
}
}
public static function init(){
foreach(self::get_setting('term_thumbnail_taxonomies') ?: [] as $tax){
if(is_object_in_taxonomy('post', $tax) && ($object = wpjam_get_taxonomy($tax))){
$object->add_support('thumbnail')->update_args(wpjam_fill(['thumbnail_type', 'thumbnail_size'], fn($k)=> self::get_setting('term_'.$k)));
}
}
}
public static function add_hooks(){
return [
self::get_setting('disable_pdf_preview') ? ['fallback_intermediate_image_sizes', []] : '',
self::get_setting('auto') ? ['has_post_thumbnail', fn($has, $post)=> $has ?: (bool)wpjam_get_post_thumbnail_url($post), 10, 2] : '',
['wpjam_post_thumbnail_url', fn($url, $post)=> is_object_in_taxonomy($post, 'category') ? (self::get_post_thumbnail_url($post) ?: ($url ?: self::get_default())) : $url, 1, 2],
['post_thumbnail_html', fn($html, $id, $_thumb_id, $size, $attr)=> self::get_post_thumbnail_html($id, $size, $attr) ?: $html, 10, 5]
];
}
}
function wpjam_get_default_thumbnail_url($size='full', $crop=1){
return wpjam_get_thumbnail(WPJAM_Thumbnail::get_default(), $size, $crop);
}
wpjam_register_option('wpjam-thumbnail', [
'title' => '缩略图设置',
'model' => 'WPJAM_Thumbnail',
'site_default' => true,
'menu_page' => ['parent'=>'wpjam-basic', 'position'=>3, 'summary'=>__FILE__]
]);