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<?php
/**
* Bookmark Template Functions for usage in Themes
*
* @package WordPress
* @subpackage Template
*/
/**
* The formatted output of a list of bookmarks.
*
* The $bookmarks array must contain bookmark objects and will be iterated over
* to retrieve the bookmark to be used in the output.
*
* The output is formatted as HTML with no way to change that format. However,
* what is between, before, and after can be changed. The link itself will be
* HTML.
*
* This function is used internally by wp_list_bookmarks() and should not be
* used by themes.
*
* The defaults for overwriting are:
* 'show_updated' - Default is 0 (integer). Will show the time of when the
* bookmark was last updated.
* 'show_description' - Default is 0 (integer). Whether to show the description
* of the bookmark.
* 'show_images' - Default is 1 (integer). Whether to show link image if
* available.
* 'show_name' - Default is 0 (integer). Whether to show link name if
* available.
* 'before' - Default is '<li>' (string). The html or text to prepend to each
* bookmarks.
* 'after' - Default is '</li>' (string). The html or text to append to each
* bookmarks.
* 'link_before' - Default is '' (string). The html or text to prepend to each
* bookmarks inside the <a> tag.
* 'link_after' - Default is '' (string). The html or text to append to each
* bookmarks inside the <a> tag.
* 'between' - Default is '\n' (string). The string for use in between the link,
* description, and image.
* 'show_rating' - Default is 0 (integer). Whether to show the link rating.
*
* @since 2.1.0
* @access private
*
* @param array $bookmarks List of bookmarks to traverse
* @param string|array $args Optional. Overwrite the defaults.
* @return string Formatted output in HTML
*/
function _walk_bookmarks($bookmarks, $args = '' ) {
$defaults = array(
'show_updated' => 0, 'show_description' => 0,
'show_images' => 1, 'show_name' => 0,
'before' => '<li>', 'after' => '</li>', 'between' => "\n",
'show_rating' => 0, 'link_before' => '', 'link_after' => ''
);
$r = wp_parse_args( $args, $defaults );
extract( $r, EXTR_SKIP );
$output = ''; // Blank string to start with.
foreach ( (array) $bookmarks as $bookmark ) {
if ( !isset($bookmark->recently_updated) )
$bookmark->recently_updated = false;
$output .= $before;
if ( $show_updated && $bookmark->recently_updated )
$output .= get_option('links_recently_updated_prepend');
$the_link = '#';
if ( !empty($bookmark->link_url) )
$the_link = esc_url($bookmark->link_url);
$desc = esc_attr(sanitize_bookmark_field('link_description', $bookmark->link_description, $bookmark->link_id, 'display'));
$name = esc_attr(sanitize_bookmark_field('link_name', $bookmark->link_name, $bookmark->link_id, 'display'));
$title = $desc;
if ( $show_updated )
if ( '00' != substr($bookmark->link_updated_f, 0, 2) ) {
$title .= ' (';
$title .= sprintf(__('Last updated: %s'), date(get_option('links_updated_date_format'), $bookmark->link_updated_f + (get_option('gmt_offset') * HOUR_IN_SECONDS)));
$title .= ')';
}
$alt = ' alt="' . $name . ( $show_description ? ' ' . $title : '' ) . '"';
if ( '' != $title )
$title = ' title="' . $title . '"';
$rel = $bookmark->link_rel;
if ( '' != $rel )
$rel = ' rel="' . esc_attr($rel) . '"';
$target = $bookmark->link_target;
if ( '' != $target )
$target = ' target="' . $target . '"';
$output .= '<a href="' . $the_link . '"' . $rel . $title . $target . '>';
$output .= $link_before;
if ( $bookmark->link_image != null && $show_images ) {
if ( strpos($bookmark->link_image, 'http') === 0 )
$output .= "<img src=\"$bookmark->link_image\" $alt $title />";
else // If it's a relative path
$output .= "<img src=\"" . get_option('siteurl') . "$bookmark->link_image\" $alt $title />";
if ( $show_name )
$output .= " $name";
} else {
$output .= $name;
}
$output .= $link_after;
$output .= '</a>';
if ( $show_updated && $bookmark->recently_updated )
$output .= get_option('links_recently_updated_append');
if ( $show_description && '' != $desc )
$output .= $between . $desc;
if ( $show_rating )
$output .= $between . sanitize_bookmark_field('link_rating', $bookmark->link_rating, $bookmark->link_id, 'display');
$output .= "$after\n";
} // end while
return $output;
}
/**
* Retrieve or echo all of the bookmarks.
*
* List of default arguments are as follows:
* 'orderby' - Default is 'name' (string). How to order the links by. String is
* based off of the bookmark scheme.
* 'order' - Default is 'ASC' (string). Either 'ASC' or 'DESC'. Orders in either
* ascending or descending order.
* 'limit' - Default is -1 (integer) or show all. The amount of bookmarks to
* display.
* 'category' - Default is empty string (string). Include the links in what
* category ID(s).
* 'category_name' - Default is empty string (string). Get links by category
* name.
* 'hide_invisible' - Default is 1 (integer). Whether to show (default) or hide
* links marked as 'invisible'.
* 'show_updated' - Default is 0 (integer). Will show the time of when the
* bookmark was last updated.
* 'echo' - Default is 1 (integer). Whether to echo (default) or return the
* formatted bookmarks.
* 'categorize' - Default is 1 (integer). Whether to show links listed by
* category (default) or show links in one column.
* 'show_description' - Default is 0 (integer). Whether to show the description
* of the bookmark.
*
* These options define how the Category name will appear before the category
* links are displayed, if 'categorize' is 1. If 'categorize' is 0, then it will
* display for only the 'title_li' string and only if 'title_li' is not empty.
* 'title_li' - Default is 'Bookmarks' (translatable string). What to show
* before the links appear.
* 'title_before' - Default is '<h2>' (string). The HTML or text to show before
* the 'title_li' string.
* 'title_after' - Default is '</h2>' (string). The HTML or text to show after
* the 'title_li' string.
* 'class' - Default is 'linkcat' (string). The CSS class to use for the
* 'title_li'.
*
* 'category_before' - Default is '<li id="%id" class="%class">'. String must
* contain '%id' and '%class' to get
* the id of the category and the 'class' argument. These are used for
* formatting in themes.
* Argument will be displayed before the 'title_before' argument.
* 'category_after' - Default is '</li>' (string). The HTML or text that will
* appear after the list of links.
*
* These are only used if 'categorize' is set to 1 or true.
* 'category_orderby' - Default is 'name'. How to order the bookmark category
* based on term scheme.
* 'category_order' - Default is 'ASC'. Set the order by either ASC (ascending)
* or DESC (descending).
*
* @see _walk_bookmarks() For other arguments that can be set in this function
* and passed to _walk_bookmarks().
* @see get_bookmarks() For other arguments that can be set in this function and
* passed to get_bookmarks().
* @link http://codex.wordpress.org/Template_Tags/wp_list_bookmarks
*
* @since 2.1.0
* @uses _walk_bookmarks() Used to iterate over all of the bookmarks and return
* the html
* @uses get_terms() Gets all of the categories that are for links.
*
* @param string|array $args Optional. Overwrite the defaults of the function
* @return string|null Will only return if echo option is set to not echo.
* Default is not return anything.
*/
function wp_list_bookmarks($args = '') {
$defaults = array(
'orderby' => 'name', 'order' => 'ASC',
'limit' => -1, 'category' => '', 'exclude_category' => '',
'category_name' => '', 'hide_invisible' => 1,
'show_updated' => 0, 'echo' => 1,
'categorize' => 1, 'title_li' => __('Bookmarks'),
'title_before' => '<h2>', 'title_after' => '</h2>',
'category_orderby' => 'name', 'category_order' => 'ASC',
'class' => 'linkcat', 'category_before' => '<li id="%id" class="%class">',
'category_after' => '</li>'
);
$r = wp_parse_args( $args, $defaults );
extract( $r, EXTR_SKIP );
$output = '';
if ( $categorize ) {
$cats = get_terms( 'link_category', array( 'name__like' => $category_name, 'include' => $category, 'exclude' => $exclude_category, 'orderby' => $category_orderby, 'order' => $category_order, 'hierarchical' => 0 ) );
if ( empty( $cats ) )
$categorize = false;
}
if ( $categorize ) {
// Split the bookmarks into ul's for each category
foreach ( (array) $cats as $cat ) {
$params = array_merge($r, array('category'=>$cat->term_id));
$bookmarks = get_bookmarks($params);
if ( empty($bookmarks) )
continue;
$output .= str_replace(array('%id', '%class'), array("linkcat-$cat->term_id", $class), $category_before);
/**
* Filter the bookmarks category name.
*
* @since 2.2.0
*
* @param string $cat->name The category name of bookmarks.
*/
$catname = apply_filters( 'link_category', $cat->name );
$output .= "$title_before$catname$title_after\n\t<ul class='xoxo blogroll'>\n";
$output .= _walk_bookmarks($bookmarks, $r);
$output .= "\n\t</ul>\n$category_after\n";
}
} else {
//output one single list using title_li for the title
$bookmarks = get_bookmarks($r);
if ( !empty($bookmarks) ) {
if ( !empty( $title_li ) ){
$output .= str_replace(array('%id', '%class'), array("linkcat-$category", $class), $category_before);
$output .= "$title_before$title_li$title_after\n\t<ul class='xoxo blogroll'>\n";
$output .= _walk_bookmarks($bookmarks, $r);
$output .= "\n\t</ul>\n$category_after\n";
} else {
$output .= _walk_bookmarks($bookmarks, $r);
}
}
}
/**
* Filter the bookmarks list before it is echoed or returned.
*
* @since 2.5.0
*
* @param string $output The HTML list of bookmarks.
*/
$output = apply_filters( 'wp_list_bookmarks', $output );
if ( !$echo )
return $output;
echo $output;
}
