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<?php |
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/* |
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Name: 缩略图设置 |
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URI: https://mp.weixin.qq.com/s/93TRBqSdiTzissW-c0bLRQ |
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Description: 缩略图设置可以无需预定义就可以进行动态裁图，并且还支持文章和分类缩略图 |
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Version: 2.0 |
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*/ |
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class WPJAM_Thumbnail{ |
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public static function __callStatic($method, $args){ |
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return wpjam_call_option(static::class, $method, ...$args); |
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} |
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|
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public static function get_fields(){ |
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$tax_options = wpjam_reduce(get_object_taxonomies('post', 'objects'), fn($c, $v, $k)=> $v->show_ui && $v->public ? wpjam_set($c, $k, wpjam_get_taxonomy_setting($k, 'title')) : $c, []); |
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|
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$show_if = ['term_thumbnail_type', '!=', '']; |
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$term_fields = [ |
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'type' => ['options'=>[''=>'� |
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�闭分类缩略图', 'img'=>'本地媒体模式', 'image'=>'输� |
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�图片链接模式']], |
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'taxonomies' => ['type'=>'checkbox', 'before'=>'支持的分类模式：', 'show_if'=>$show_if, 'options'=>$tax_options], |
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'size' => ['type'=>'size', 'before'=>'缩略图尺寸：', 'show_if'=>$show_if], |
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]; |
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|
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$tax_options = wpjam_map($tax_options, fn($v, $k)=> ['title'=>$v, 'show_if'=>['term_thumbnail_taxonomies', 'IN', $k]]); |
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$order_options = [ |
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'' => '请选择来源', |
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'first' => '第一张图', |
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'post_meta' => [ |
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'label' => '自定义字段', |
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'fields' => ['post_meta'=>['type'=>'text', 'class'=>'all-options', 'placeholder'=>'请输� |
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�自定义字段的 meta_key']] |
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], |
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'term' =>[ |
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'label' => '分类缩略图', |
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'show_if' => ['term_thumbnail_type', 'IN', ['img','image']], |
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'fields' => ['taxonomy'=>['options'=>[''=>'请选择分类模式']+$tax_options]] |
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] |
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]; |
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|
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return [ |
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'auto' => ['title'=>'缩略图设置', 'type'=>'radio', 'direction'=>'column', 'options'=>[ |
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0 =>'修改主题代码，手动使用 <a href="https://blog.wpjam.com/m/wpjam-basic-thumbnail-functions/" target="_blank">WPJAM 的缩略图函数</a>。', |
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1 =>'无需修改主题，自动应用 WPJAM 的缩略图设置。' |
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]], |
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'pdf' => ['title'=>'PDF预览图', 'name'=>'disable_pdf_preview', 'label'=>'屏蔽 PDF 生成预览图功能。'], |
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'default' => ['title'=>'默认缩略图', 'type'=>'mu-img', 'item_type'=>'url'], |
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'term_set' => ['title'=>'分类缩略图', 'prefix'=>'term_thumbnail', 'fields'=>$term_fields], |
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|
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'post_thumbnail_orders' => ['title'=>'文章缩略图', 'type'=>'mu-fields', 'group'=>true, 'max_items'=>5, 'before'=>'首� |
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�使用文章特色图片，如未设置，将按� |
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�下面的顺序获取：<br />', 'fields'=>['type'=>['options'=>$order_options]]] |
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]; |
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} |
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|
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public static function get_default(){ |
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$default = self::get_setting('default', []); |
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$default = $default && is_array($default) ? $default[array_rand($default)] : ''; |
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|
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return apply_filters('wpjam_default_thumbnail_url', $default); |
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} |
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|
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public static function get_post_thumbnail_url($post, $order=null){ |
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if($order){ |
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if($order['type'] == 'first'){ |
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return wpjam_get_post_first_image_url($post); |
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}elseif($order['type'] == 'post_meta'){ |
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if(!empty($order['post_meta'])){ |
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return get_post_meta($post->ID, $order['post_meta'], true); |
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} |
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}elseif($order['type'] == 'term'){ |
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if($order['taxonomy'] && is_object_in_taxonomy($post, $order['taxonomy'])){ |
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return wpjam_find(get_the_terms($post, $order['taxonomy']) ?: [], fn($v)=> $v, fn($term)=> wpjam_get_term_thumbnail_url($term)); |
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} |
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} |
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}else{ |
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foreach(self::get_setting('post_thumbnail_orders') ?: [] as $order){ |
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if($order && ($url = self::get_post_thumbnail_url($post, $order))){ |
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return $url; |
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} |
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} |
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} |
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} |
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|
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public static function get_post_thumbnail_html($post_id, $size, $attr){ |
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if(self::get_setting('auto')){ |
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$src = wpjam_get_post_thumbnail_url($post_id, wpjam_parse_size($size, 2)); |
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}else{ |
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$images = wpjam_get_post_images($post_id, false); |
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$src = $images ? wpjam_get_thumbnail(array_first($images), wpjam_parse_size($size, 2)) : ''; |
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} |
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|
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if($src){ |
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$name = is_array($size) ? join('x', $size) : $size; |
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$attr = wp_parse_args($attr, ['src'=>$src, 'class'=>"attachment-$name size-$name wp-post-image", 'decoding'=>'async', 'loading'=>'lazy']); |
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|
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return (string)wpjam_tag('img', $attr)->attr(wpjam_pick(wpjam_parse_size($size), ['width', 'height'])); |
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} |
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} |
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|
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public static function init(){ |
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foreach(self::get_setting('term_thumbnail_taxonomies') ?: [] as $tax){ |
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if(is_object_in_taxonomy('post', $tax) && ($object = wpjam_get_taxonomy($tax))){ |
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$object->add_support('thumbnail')->update_args(wpjam_fill(['thumbnail_type', 'thumbnail_size'], fn($k)=> self::get_setting('term_'.$k))); |
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} |
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} |
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} |
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|
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public static function add_hooks(){ |
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return [ |
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self::get_setting('disable_pdf_preview') ? ['fallback_intermediate_image_sizes', []] : '', |
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self::get_setting('auto') ? ['has_post_thumbnail', fn($has, $post)=> $has ?: (bool)wpjam_get_post_thumbnail_url($post), 10, 2] : '', |
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['wpjam_post_thumbnail_url', fn($url, $post)=> is_object_in_taxonomy($post, 'category') ? (self::get_post_thumbnail_url($post) ?: ($url ?: self::get_default())) : $url, 1, 2], |
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['post_thumbnail_html', fn($html, $id, $_thumb_id, $size, $attr)=> self::get_post_thumbnail_html($id, $size, $attr) ?: $html, 10, 5] |
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]; |
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} |
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} |
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|
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function wpjam_get_default_thumbnail_url($size='full', $crop=1){ |
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return wpjam_get_thumbnail(WPJAM_Thumbnail::get_default(), $size, $crop); |
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} |
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|
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wpjam_register_option('wpjam-thumbnail', [ |
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'title' => '缩略图设置', |
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'model' => 'WPJAM_Thumbnail', |
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'site_default' => true, |
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'menu_page' => ['parent'=>'wpjam-basic', 'position'=>3, 'summary'=>__FILE__] |
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]); |
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|
