337 lines
13 KiB
PHP
337 lines
13 KiB
PHP
<?php
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/**
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* Bookmark Template Functions for usage in Themes.
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*
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* @package WordPress
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* @subpackage Template
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*/
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/**
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* The formatted output of a list of bookmarks.
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*
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* The $bookmarks array must contain bookmark objects and will be iterated over
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* to retrieve the bookmark to be used in the output.
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*
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* The output is formatted as HTML with no way to change that format. However,
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* what is between, before, and after can be changed. The link itself will be
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* HTML.
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*
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* This function is used internally by wp_list_bookmarks() and should not be
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* used by themes.
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*
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* @since 2.1.0
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* @access private
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*
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* @param array $bookmarks List of bookmarks to traverse.
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* @param string|array $args {
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* Optional. Bookmarks arguments.
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*
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* @type int|bool $show_updated Whether to show the time the bookmark was last updated.
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* Accepts 1|true or 0|false. Default 0|false.
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* @type int|bool $show_description Whether to show the bookmark description. Accepts 1|true,
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* Accepts 1|true or 0|false. Default 0|false.
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* @type int|bool $show_images Whether to show the link image if available. Accepts 1|true
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* or 0|false. Default 1|true.
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* @type int|bool $show_name Whether to show link name if available. Accepts 1|true or
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* 0|false. Default 0|false.
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* @type string $before The HTML or text to prepend to each bookmark. Default `<li>`.
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* @type string $after The HTML or text to append to each bookmark. Default `</li>`.
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* @type string $link_before The HTML or text to prepend to each bookmark inside the anchor
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* tags. Default empty.
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* @type string $link_after The HTML or text to append to each bookmark inside the anchor
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* tags. Default empty.
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* @type string $between The string for use in between the link, description, and image.
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* Default "\n".
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* @type int|bool $show_rating Whether to show the link rating. Accepts 1|true or 0|false.
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* Default 0|false.
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*
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* }
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* @return string Formatted output in HTML
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*/
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function _walk_bookmarks( $bookmarks, $args = '' ) {
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$defaults = array(
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'show_updated' => 0,
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'show_description' => 0,
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'show_images' => 1,
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'show_name' => 0,
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'before' => '<li>',
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'after' => '</li>',
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'between' => "\n",
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'show_rating' => 0,
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'link_before' => '',
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'link_after' => '',
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);
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$parsed_args = wp_parse_args( $args, $defaults );
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$output = ''; // Blank string to start with.
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foreach ( (array) $bookmarks as $bookmark ) {
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if ( ! isset( $bookmark->recently_updated ) ) {
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$bookmark->recently_updated = false;
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}
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$output .= $parsed_args['before'];
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if ( $parsed_args['show_updated'] && $bookmark->recently_updated ) {
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$output .= '<em>';
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}
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$the_link = '#';
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if ( ! empty( $bookmark->link_url ) ) {
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$the_link = esc_url( $bookmark->link_url );
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}
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$desc = esc_attr( sanitize_bookmark_field( 'link_description', $bookmark->link_description, $bookmark->link_id, 'display' ) );
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$name = esc_attr( sanitize_bookmark_field( 'link_name', $bookmark->link_name, $bookmark->link_id, 'display' ) );
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$title = $desc;
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if ( $parsed_args['show_updated'] ) {
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if ( '00' !== substr( $bookmark->link_updated_f, 0, 2 ) ) {
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$title .= ' (';
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$title .= sprintf(
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/* translators: %s: Date and time of last update. */
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__( 'Last updated: %s' ),
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gmdate(
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get_option( 'links_updated_date_format' ),
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$bookmark->link_updated_f + ( get_option( 'gmt_offset' ) * HOUR_IN_SECONDS )
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)
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);
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$title .= ')';
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}
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}
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$alt = ' alt="' . $name . ( $parsed_args['show_description'] ? ' ' . $title : '' ) . '"';
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if ( '' !== $title ) {
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$title = ' title="' . $title . '"';
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}
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$rel = $bookmark->link_rel;
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$target = $bookmark->link_target;
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if ( '' !== $target ) {
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if ( is_string( $rel ) && '' !== $rel ) {
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if ( ! str_contains( $rel, 'noopener' ) ) {
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$rel = trim( $rel ) . ' noopener';
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}
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} else {
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$rel = 'noopener';
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}
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$target = ' target="' . $target . '"';
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}
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if ( '' !== $rel ) {
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$rel = ' rel="' . esc_attr( $rel ) . '"';
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}
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$output .= '<a href="' . $the_link . '"' . $rel . $title . $target . '>';
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$output .= $parsed_args['link_before'];
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if ( null != $bookmark->link_image && $parsed_args['show_images'] ) {
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if ( strpos( $bookmark->link_image, 'http' ) === 0 ) {
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$output .= "<img src=\"$bookmark->link_image\" $alt $title />";
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} else { // If it's a relative path.
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$output .= '<img src="' . get_option( 'siteurl' ) . "$bookmark->link_image\" $alt $title />";
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}
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if ( $parsed_args['show_name'] ) {
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$output .= " $name";
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}
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} else {
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$output .= $name;
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}
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$output .= $parsed_args['link_after'];
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$output .= '</a>';
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if ( $parsed_args['show_updated'] && $bookmark->recently_updated ) {
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$output .= '</em>';
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}
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if ( $parsed_args['show_description'] && '' !== $desc ) {
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$output .= $parsed_args['between'] . $desc;
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}
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if ( $parsed_args['show_rating'] ) {
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$output .= $parsed_args['between'] . sanitize_bookmark_field(
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'link_rating',
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$bookmark->link_rating,
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$bookmark->link_id,
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'display'
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);
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}
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$output .= $parsed_args['after'] . "\n";
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} // End while.
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return $output;
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}
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/**
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* Retrieves or echoes all of the bookmarks.
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*
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* List of default arguments are as follows:
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*
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* These options define how the Category name will appear before the category
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* links are displayed, if 'categorize' is 1. If 'categorize' is 0, then it will
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* display for only the 'title_li' string and only if 'title_li' is not empty.
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*
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* @since 2.1.0
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*
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* @see _walk_bookmarks()
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*
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* @param string|array $args {
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* Optional. String or array of arguments to list bookmarks.
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*
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* @type string $orderby How to order the links by. Accepts post fields. Default 'name'.
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* @type string $order Whether to order bookmarks in ascending or descending order.
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* Accepts 'ASC' (ascending) or 'DESC' (descending). Default 'ASC'.
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* @type int $limit Amount of bookmarks to display. Accepts 1+ or -1 for all.
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* Default -1.
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* @type string $category Comma-separated list of category IDs to include links from.
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* Default empty.
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* @type string $category_name Category to retrieve links for by name. Default empty.
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* @type int|bool $hide_invisible Whether to show or hide links marked as 'invisible'. Accepts
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* 1|true or 0|false. Default 1|true.
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* @type int|bool $show_updated Whether to display the time the bookmark was last updated.
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* Accepts 1|true or 0|false. Default 0|false.
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* @type int|bool $echo Whether to echo or return the formatted bookmarks. Accepts
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* 1|true (echo) or 0|false (return). Default 1|true.
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* @type int|bool $categorize Whether to show links listed by category or in a single column.
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* Accepts 1|true (by category) or 0|false (one column). Default 1|true.
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* @type int|bool $show_description Whether to show the bookmark descriptions. Accepts 1|true or 0|false.
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* Default 0|false.
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* @type string $title_li What to show before the links appear. Default 'Bookmarks'.
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* @type string $title_before The HTML or text to prepend to the $title_li string. Default '<h2>'.
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* @type string $title_after The HTML or text to append to the $title_li string. Default '</h2>'.
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* @type string|array $class The CSS class or an array of classes to use for the $title_li.
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* Default 'linkcat'.
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* @type string $category_before The HTML or text to prepend to $title_before if $categorize is true.
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* String must contain '%id' and '%class' to inherit the category ID and
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* the $class argument used for formatting in themes.
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* Default '<li id="%id" class="%class">'.
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* @type string $category_after The HTML or text to append to $title_after if $categorize is true.
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* Default '</li>'.
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* @type string $category_orderby How to order the bookmark category based on term scheme if $categorize
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* is true. Default 'name'.
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* @type string $category_order Whether to order categories in ascending or descending order if
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* $categorize is true. Accepts 'ASC' (ascending) or 'DESC' (descending).
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* Default 'ASC'.
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* }
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* @return void|string Void if 'echo' argument is true, HTML list of bookmarks if 'echo' is false.
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*/
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function wp_list_bookmarks( $args = '' ) {
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$defaults = array(
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'orderby' => 'name',
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'order' => 'ASC',
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'limit' => -1,
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'category' => '',
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'exclude_category' => '',
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'category_name' => '',
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'hide_invisible' => 1,
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'show_updated' => 0,
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'echo' => 1,
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'categorize' => 1,
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'title_li' => __( 'Bookmarks' ),
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'title_before' => '<h2>',
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'title_after' => '</h2>',
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'category_orderby' => 'name',
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'category_order' => 'ASC',
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'class' => 'linkcat',
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'category_before' => '<li id="%id" class="%class">',
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'category_after' => '</li>',
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);
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$parsed_args = wp_parse_args( $args, $defaults );
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$output = '';
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if ( ! is_array( $parsed_args['class'] ) ) {
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$parsed_args['class'] = explode( ' ', $parsed_args['class'] );
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}
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$parsed_args['class'] = array_map( 'sanitize_html_class', $parsed_args['class'] );
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$parsed_args['class'] = trim( implode( ' ', $parsed_args['class'] ) );
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if ( $parsed_args['categorize'] ) {
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$cats = get_terms(
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array(
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'taxonomy' => 'link_category',
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'name__like' => $parsed_args['category_name'],
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'include' => $parsed_args['category'],
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'exclude' => $parsed_args['exclude_category'],
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'orderby' => $parsed_args['category_orderby'],
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'order' => $parsed_args['category_order'],
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'hierarchical' => 0,
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)
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);
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if ( empty( $cats ) ) {
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$parsed_args['categorize'] = false;
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}
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}
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if ( $parsed_args['categorize'] ) {
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// Split the bookmarks into ul's for each category.
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foreach ( (array) $cats as $cat ) {
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$params = array_merge( $parsed_args, array( 'category' => $cat->term_id ) );
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$bookmarks = get_bookmarks( $params );
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if ( empty( $bookmarks ) ) {
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continue;
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}
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$output .= str_replace(
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array( '%id', '%class' ),
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array( "linkcat-$cat->term_id", $parsed_args['class'] ),
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$parsed_args['category_before']
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);
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/**
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* Filters the category name.
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*
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* @since 2.2.0
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*
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* @param string $cat_name The category name.
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*/
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$catname = apply_filters( 'link_category', $cat->name );
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$output .= $parsed_args['title_before'];
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$output .= $catname;
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$output .= $parsed_args['title_after'];
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$output .= "\n\t<ul class='xoxo blogroll'>\n";
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$output .= _walk_bookmarks( $bookmarks, $parsed_args );
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$output .= "\n\t</ul>\n";
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$output .= $parsed_args['category_after'] . "\n";
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}
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} else {
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// Output one single list using title_li for the title.
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$bookmarks = get_bookmarks( $parsed_args );
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if ( ! empty( $bookmarks ) ) {
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if ( ! empty( $parsed_args['title_li'] ) ) {
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$output .= str_replace(
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array( '%id', '%class' ),
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array( 'linkcat-' . $parsed_args['category'], $parsed_args['class'] ),
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$parsed_args['category_before']
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);
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$output .= $parsed_args['title_before'];
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$output .= $parsed_args['title_li'];
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$output .= $parsed_args['title_after'];
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$output .= "\n\t<ul class='xoxo blogroll'>\n";
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$output .= _walk_bookmarks( $bookmarks, $parsed_args );
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$output .= "\n\t</ul>\n";
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$output .= $parsed_args['category_after'] . "\n";
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} else {
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$output .= _walk_bookmarks( $bookmarks, $parsed_args );
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}
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}
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}
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/**
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* Filters the bookmarks list before it is echoed or returned.
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*
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* @since 2.5.0
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*
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* @param string $html The HTML list of bookmarks.
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*/
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$html = apply_filters( 'wp_list_bookmarks', $output );
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if ( $parsed_args['echo'] ) {
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echo $html;
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} else {
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return $html;
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}
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}
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