As the sun rises and the forest mist clears, and the clouds return and the caves darken, these changes of light and shadow are the morning and evening in the mountains. Wildflowers bloom with their subtle fragrance, fine trees flourish with their dense shade, the wind and frost are pure and clean, and the water recedes to reveal the rocks—these are the four seasons in the mountains. Going out in the morning and returning in the evening, the scenery of the four seasons is different, and the joy is endless.至于负者歌于途,行者休于树,前者呼,后者应,伛偻提携,往来而不绝者,滁人游也。临溪而渔,溪深而鱼肥,酿泉为酒,泉香而酒洌,山肴野蔌,杂然而前陈者,太守宴也。宴酣之乐,非丝非竹,射者中,弈者胜,觥筹交错,起坐而喧哗者,众宾欢也。苍颜白发,颓然乎其间者,太守醉也。
<?php
/**
* Widget API: WP_Widget_Links class
*
* @package WordPress
* @subpackage Widgets
* @since 4.4.0
*/
/**
* Core class used to implement a Links widget.
*
* @since 2.8.0
*
* @see WP_Widget
*/
class WP_Widget_Links extends WP_Widget {
/**
* Sets up a new Links widget instance.
*
* @since 2.8.0
*/
public function __construct() {
$widget_ops = array(
'description' => __( 'Your blogroll' ),
'customize_selective_refresh' => true,
);
parent::__construct( 'links', __( 'Links' ), $widget_ops );
}
/**
* Outputs the content for the current Links widget instance.
*
* @since 2.8.0
*
* @param array $args Display arguments including 'before_title', 'after_title',
* 'before_widget', and 'after_widget'.
* @param array $instance Settings for the current Links widget instance.
*/
public function widget( $args, $instance ) {
$show_description = isset( $instance['description'] ) ? $instance['description'] : false;
$show_name = isset( $instance['name'] ) ? $instance['name'] : false;
$show_rating = isset( $instance['rating'] ) ? $instance['rating'] : false;
$show_images = isset( $instance['images'] ) ? $instance['images'] : true;
$category = isset( $instance['category'] ) ? $instance['category'] : false;
$orderby = isset( $instance['orderby'] ) ? $instance['orderby'] : 'name';
$order = 'rating' === $orderby ? 'DESC' : 'ASC';
$limit = isset( $instance['limit'] ) ? $instance['limit'] : -1;
$before_widget = preg_replace( '/ id="[^"]*"/', ' id="%id"', $args['before_widget'] );
$widget_links_args = array(
'title_before' => $args['before_title'],
'title_after' => $args['after_title'],
'category_before' => $before_widget,
'category_after' => $args['after_widget'],
'show_images' => $show_images,
'show_description' => $show_description,
'show_name' => $show_name,
'show_rating' => $show_rating,
'category' => $category,
'class' => 'linkcat widget',
'orderby' => $orderby,
'order' => $order,
'limit' => $limit,
);
/**
* Filters the arguments for the Links widget.
*
* @since 2.6.0
* @since 4.4.0 Added the `$instance` parameter.
*
* @see wp_list_bookmarks()
*
* @param array $widget_links_args An array of arguments to retrieve the links list.
* @param array $instance The settings for the particular instance of the widget.
*/
wp_list_bookmarks( apply_filters( 'widget_links_args', $widget_links_args, $instance ) );
}
/**
* Handles updating settings for the current Links widget instance.
*
* @since 2.8.0
*
* @param array $new_instance New settings for this instance as input by the user via
* WP_Widget::form().
* @param array $old_instance Old settings for this instance.
* @return array Updated settings to save.
*/
public function update( $new_instance, $old_instance ) {
$new_instance = (array) $new_instance;
$instance = array(
'images' => 0,
'name' => 0,
'description' => 0,
'rating' => 0,
);
foreach ( $instance as $field => $val ) {
if ( isset( $new_instance[ $field ] ) ) {
$instance[ $field ] = 1;
}
}
$instance['orderby'] = 'name';
if ( in_array( $new_instance['orderby'], array( 'name', 'rating', 'id', 'rand' ), true ) ) {
$instance['orderby'] = $new_instance['orderby'];
}
$instance['category'] = (int) $new_instance['category'];
$instance['limit'] = ! empty( $new_instance['limit'] ) ? (int) $new_instance['limit'] : -1;
return $instance;
}
/**
* Outputs the settings form for the Links widget.
*
* @since 2.8.0
*
* @param array $instance Current settings.
*/
public function form( $instance ) {
// Defaults.
$instance = wp_parse_args(
(array) $instance,
array(
'images' => true,
'name' => true,
'description' => false,
'rating' => false,
'category' => false,
'orderby' => 'name',
'limit' => -1,
)
);
$link_cats = get_terms( array( 'taxonomy' => 'link_category' ) );
$limit = (int) $instance['limit'];
if ( ! $limit ) {
$limit = -1;
}
?>
<p>
<label for="<?php echo $this->get_field_id( 'category' ); ?>"><?php _e( 'Select Link Category:' ); ?></label>
<select class="widefat" id="<?php echo $this->get_field_id( 'category' ); ?>" name="<?php echo $this->get_field_name( 'category' ); ?>">
<option value=""><?php _ex( 'All Links', 'links widget' ); ?></option>
<?php foreach ( $link_cats as $link_cat ) : ?>
<option value="<?php echo (int) $link_cat->term_id; ?>" <?php selected( $instance['category'], $link_cat->term_id ); ?>>
<?php echo esc_html( $link_cat->name ); ?>
</option>
<?php endforeach; ?>
</select>
<label for="<?php echo $this->get_field_id( 'orderby' ); ?>"><?php _e( 'Sort by:' ); ?></label>
<select name="<?php echo $this->get_field_name( 'orderby' ); ?>" id="<?php echo $this->get_field_id( 'orderby' ); ?>" class="widefat">
<option value="name"<?php selected( $instance['orderby'], 'name' ); ?>><?php _e( 'Link title' ); ?></option>
<option value="rating"<?php selected( $instance['orderby'], 'rating' ); ?>><?php _e( 'Link rating' ); ?></option>
<option value="id"<?php selected( $instance['orderby'], 'id' ); ?>><?php _e( 'Link ID' ); ?></option>
<option value="rand"<?php selected( $instance['orderby'], 'rand' ); ?>><?php _ex( 'Random', 'Links widget' ); ?></option>
</select>
</p>
<p>
<input class="checkbox" type="checkbox"<?php checked( $instance['images'], true ); ?> id="<?php echo $this->get_field_id( 'images' ); ?>" name="<?php echo $this->get_field_name( 'images' ); ?>" />
<label for="<?php echo $this->get_field_id( 'images' ); ?>"><?php _e( 'Show Link Image' ); ?></label>
<br />
<input class="checkbox" type="checkbox"<?php checked( $instance['name'], true ); ?> id="<?php echo $this->get_field_id( 'name' ); ?>" name="<?php echo $this->get_field_name( 'name' ); ?>" />
<label for="<?php echo $this->get_field_id( 'name' ); ?>"><?php _e( 'Show Link Name' ); ?></label>
<br />
<input class="checkbox" type="checkbox"<?php checked( $instance['description'], true ); ?> id="<?php echo $this->get_field_id( 'description' ); ?>" name="<?php echo $this->get_field_name( 'description' ); ?>" />
<label for="<?php echo $this->get_field_id( 'description' ); ?>"><?php _e( 'Show Link Description' ); ?></label>
<br />
<input class="checkbox" type="checkbox"<?php checked( $instance['rating'], true ); ?> id="<?php echo $this->get_field_id( 'rating' ); ?>" name="<?php echo $this->get_field_name( 'rating' ); ?>" />
<label for="<?php echo $this->get_field_id( 'rating' ); ?>"><?php _e( 'Show Link Rating' ); ?></label>
</p>
<p>
<label for="<?php echo $this->get_field_id( 'limit' ); ?>"><?php _e( 'Number of links to show:' ); ?></label>
<input id="<?php echo $this->get_field_id( 'limit' ); ?>" name="<?php echo $this->get_field_name( 'limit' ); ?>" type="text" value="<?php echo ( -1 !== $limit ) ? (int) $limit : ''; ?>" size="3" />
</p>
<?php
}
}