af4f52bf40
`.custom-background` should only be added if a background color or an image divert from their defaults. This behavior exists already in `_custom_background_cb()`. props slobodanmanic, nitkr, valendesigns, obenland. see [21054], [21001]. fixes #28687. git-svn-id: https://develop.svn.wordpress.org/trunk@32081 602fd350-edb4-49c9-b593-d223f7449a82
1832 lines
56 KiB
PHP
1832 lines
56 KiB
PHP
<?php
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/**
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* WordPress Post Template Functions.
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*
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* Gets content for the current post in the loop.
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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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* Display the ID of the current item in the WordPress Loop.
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*
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* @since 0.71
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*/
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function the_ID() {
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echo get_the_ID();
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}
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/**
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* Retrieve the ID of the current item in the WordPress Loop.
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*
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* @since 2.1.0
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*
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* @return int|bool The ID of the current item in the WordPress Loop. False if $post is not set.
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*/
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function get_the_ID() {
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$post = get_post();
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return ! empty( $post ) ? $post->ID : false;
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}
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/**
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* Display or retrieve the current post title with optional content.
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*
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* @since 0.71
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*
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* @param string $before Optional. Content to prepend to the title.
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* @param string $after Optional. Content to append to the title.
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* @param bool $echo Optional, default to true.Whether to display or return.
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* @return null|string Null on no title. String if $echo parameter is false.
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*/
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function the_title($before = '', $after = '', $echo = true) {
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$title = get_the_title();
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if ( strlen($title) == 0 )
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return;
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$title = $before . $title . $after;
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if ( $echo )
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echo $title;
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else
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return $title;
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}
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/**
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* Sanitize the current title when retrieving or displaying.
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*
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* Works like {@link the_title()}, except the parameters can be in a string or
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* an array. See the function for what can be override in the $args parameter.
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*
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* The title before it is displayed will have the tags stripped and {@link
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* esc_attr()} before it is passed to the user or displayed. The default
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* as with {@link the_title()}, is to display the title.
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*
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* @since 2.3.0
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*
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* @param string|array $args {
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* Title attribute arguments. Optional.
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*
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* @type string $before Markup to prepend to the title. Default empty.
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* @type string $after Markup to append to the title. Default empty.
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* @type bool $echo Whether to echo or return the title. Default true for echo.
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* @type WP_Post $post Current post object to retrieve the title for.
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* }
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* @return string|null Null on failure or display. String when echo is false.
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*/
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function the_title_attribute( $args = '' ) {
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$defaults = array( 'before' => '', 'after' => '', 'echo' => true, 'post' => get_post() );
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$r = wp_parse_args( $args, $defaults );
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$title = get_the_title( $r['post'] );
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if ( strlen( $title ) == 0 ) {
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return;
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}
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$title = $r['before'] . $title . $r['after'];
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$title = esc_attr( strip_tags( $title ) );
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if ( $r['echo'] ) {
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echo $title;
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} else {
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return $title;
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}
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}
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/**
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* Retrieve post title.
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*
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* If the post is protected and the visitor is not an admin, then "Protected"
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* will be displayed before the post title. If the post is private, then
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* "Private" will be located before the post title.
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*
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* @since 0.71
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*
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* @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
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* @return string
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*/
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function get_the_title( $post = 0 ) {
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$post = get_post( $post );
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$title = isset( $post->post_title ) ? $post->post_title : '';
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$id = isset( $post->ID ) ? $post->ID : 0;
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if ( ! is_admin() ) {
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if ( ! empty( $post->post_password ) ) {
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/**
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* Filter the text prepended to the post title for protected posts.
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*
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* The filter is only applied on the front end.
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*
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* @since 2.8.0
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*
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* @param string $prepend Text displayed before the post title.
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* Default 'Protected: %s'.
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* @param WP_Post $post Current post object.
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*/
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$protected_title_format = apply_filters( 'protected_title_format', __( 'Protected: %s' ), $post );
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$title = sprintf( $protected_title_format, $title );
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} elseif ( isset( $post->post_status ) && 'private' == $post->post_status ) {
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/**
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* Filter the text prepended to the post title of private posts.
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*
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* The filter is only applied on the front end.
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*
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* @since 2.8.0
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*
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* @param string $prepend Text displayed before the post title.
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* Default 'Private: %s'.
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* @param WP_Post $post Current post object.
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*/
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$private_title_format = apply_filters( 'private_title_format', __( 'Private: %s' ), $post );
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$title = sprintf( $private_title_format, $title );
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}
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}
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/**
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* Filter the post title.
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*
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* @since 0.71
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*
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* @param string $title The post title.
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* @param int $id The post ID.
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*/
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return apply_filters( 'the_title', $title, $id );
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}
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/**
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* Display the Post Global Unique Identifier (guid).
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*
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* The guid will appear to be a link, but should not be used as an link to the
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* post. The reason you should not use it as a link, is because of moving the
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* blog across domains.
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*
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* Url is escaped to make it xml safe
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*
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* @since 1.5.0
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*
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* @param int|WP_Post $id Optional. Post ID or post object.
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*/
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function the_guid( $id = 0 ) {
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/**
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* Filter the escaped Global Unique Identifier (guid) of the post.
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*
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* @since 4.2.0
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*
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* @see get_the_guid()
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*
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* @param string $post_guid Escaped Global Unique Identifier (guid) of the post.
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*/
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echo apply_filters( 'the_guid', get_the_guid( $id ) );
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}
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/**
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* Retrieve the Post Global Unique Identifier (guid).
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*
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* The guid will appear to be a link, but should not be used as an link to the
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* post. The reason you should not use it as a link, is because of moving the
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* blog across domains.
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*
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* @since 1.5.0
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*
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* @param int|WP_Post $id Optional. Post ID or post object.
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* @return string
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*/
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function get_the_guid( $id = 0 ) {
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$post = get_post($id);
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/**
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* Filter the Global Unique Identifier (guid) of the post.
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*
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* @since 1.5.0
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*
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* @param string $post_guid Global Unique Identifier (guid) of the post.
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*/
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return apply_filters( 'get_the_guid', $post->guid );
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}
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/**
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* Display the post content.
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*
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* @since 0.71
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*
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* @param string $more_link_text Optional. Content for when there is more text.
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* @param bool $strip_teaser Optional. Strip teaser content before the more text. Default is false.
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*/
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function the_content( $more_link_text = null, $strip_teaser = false) {
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$content = get_the_content( $more_link_text, $strip_teaser );
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/**
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* Filter the post content.
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*
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* @since 0.71
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*
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* @param string $content Content of the current post.
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*/
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$content = apply_filters( 'the_content', $content );
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$content = str_replace( ']]>', ']]>', $content );
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echo $content;
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}
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/**
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* Retrieve the post content.
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*
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* @since 0.71
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*
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* @param string $more_link_text Optional. Content for when there is more text.
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* @param bool $strip_teaser Optional. Strip teaser content before the more text. Default is false.
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* @return string
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*/
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function get_the_content( $more_link_text = null, $strip_teaser = false ) {
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global $page, $more, $preview, $pages, $multipage;
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$post = get_post();
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if ( null === $more_link_text )
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$more_link_text = __( '(more…)' );
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$output = '';
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$has_teaser = false;
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// If post password required and it doesn't match the cookie.
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if ( post_password_required( $post ) )
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return get_the_password_form( $post );
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if ( $page > count( $pages ) ) // if the requested page doesn't exist
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$page = count( $pages ); // give them the highest numbered page that DOES exist
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$content = $pages[$page - 1];
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if ( preg_match( '/<!--more(.*?)?-->/', $content, $matches ) ) {
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$content = explode( $matches[0], $content, 2 );
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if ( ! empty( $matches[1] ) && ! empty( $more_link_text ) )
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$more_link_text = strip_tags( wp_kses_no_null( trim( $matches[1] ) ) );
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$has_teaser = true;
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} else {
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$content = array( $content );
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}
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if ( false !== strpos( $post->post_content, '<!--noteaser-->' ) && ( ! $multipage || $page == 1 ) )
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$strip_teaser = true;
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$teaser = $content[0];
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if ( $more && $strip_teaser && $has_teaser )
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$teaser = '';
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$output .= $teaser;
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if ( count( $content ) > 1 ) {
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if ( $more ) {
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$output .= '<span id="more-' . $post->ID . '"></span>' . $content[1];
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} else {
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if ( ! empty( $more_link_text ) )
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/**
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* Filter the Read More link text.
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*
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* @since 2.8.0
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*
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* @param string $more_link_element Read More link element.
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* @param string $more_link_text Read More text.
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*/
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$output .= apply_filters( 'the_content_more_link', ' <a href="' . get_permalink() . "#more-{$post->ID}\" class=\"more-link\">$more_link_text</a>", $more_link_text );
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$output = force_balance_tags( $output );
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}
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}
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if ( $preview ) // Preview fix for JavaScript bug with foreign languages.
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$output = preg_replace_callback( '/\%u([0-9A-F]{4})/', '_convert_urlencoded_to_entities', $output );
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return $output;
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}
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/**
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* Preview fix for JavaScript bug with foreign languages.
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*
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* @since 3.1.0
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* @access private
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* @param array $match Match array from preg_replace_callback
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* @return string
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*/
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function _convert_urlencoded_to_entities( $match ) {
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return '&#' . base_convert( $match[1], 16, 10 ) . ';';
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}
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/**
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* Display the post excerpt.
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*
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* @since 0.71
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*/
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function the_excerpt() {
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/**
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* Filter the displayed post excerpt.
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*
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* @since 0.71
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*
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* @see get_the_excerpt()
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*
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* @param string $post_excerpt The post excerpt.
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*/
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echo apply_filters( 'the_excerpt', get_the_excerpt() );
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}
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/**
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* Retrieve the post excerpt.
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*
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* @since 0.71
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*
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* @param mixed $deprecated Not used.
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* @return string
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*/
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function get_the_excerpt( $deprecated = '' ) {
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if ( !empty( $deprecated ) )
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_deprecated_argument( __FUNCTION__, '2.3' );
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$post = get_post();
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if ( empty( $post ) ) {
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return '';
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}
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if ( post_password_required() ) {
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return __( 'There is no excerpt because this is a protected post.' );
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}
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/**
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* Filter the retrieved post excerpt.
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*
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* @since 1.2.0
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*
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* @param string $post_excerpt The post excerpt.
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*/
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return apply_filters( 'get_the_excerpt', $post->post_excerpt );
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}
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/**
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* Whether post has excerpt.
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*
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* @since 2.3.0
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*
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* @param int|WP_Post $id Optional. Post ID or post object.
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* @return bool
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*/
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function has_excerpt( $id = 0 ) {
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$post = get_post( $id );
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return ( !empty( $post->post_excerpt ) );
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}
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/**
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* Display the classes for the post div.
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*
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* @since 2.7.0
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*
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* @param string|array $class One or more classes to add to the class list.
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* @param int|WP_Post $post_id Optional. Post ID or post object.
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*/
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function post_class( $class = '', $post_id = null ) {
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// Separates classes with a single space, collates classes for post DIV
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echo 'class="' . join( ' ', get_post_class( $class, $post_id ) ) . '"';
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}
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/**
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* Retrieve the classes for the post div as an array.
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*
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* The class names are many. If the post is a sticky, then the 'sticky'
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* class name. The class 'hentry' is always added to each post. If the post has a
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* post thumbnail, 'has-post-thumbnail' is added as a class. For each taxonomy that
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* the post belongs to, a class will be added of the format '{$taxonomy}-{$slug}' -
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* eg 'category-foo' or 'my_custom_taxonomy-bar'. The 'post_tag' taxonomy is a special
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* case; the class has the 'tag-' prefix instead of 'post_tag-'. All classes are
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* passed through the filter, 'post_class' with the list of classes, followed by
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* $class parameter value, with the post ID as the last parameter.
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*
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* @since 2.7.0
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* @since 4.2.0 Custom taxonomy classes were added.
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*
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* @param string|array $class One or more classes to add to the class list.
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* @param int|WP_Post $post_id Optional. Post ID or post object.
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* @return array Array of classes.
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*/
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function get_post_class( $class = '', $post_id = null ) {
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$post = get_post( $post_id );
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$classes = array();
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if ( $class ) {
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if ( ! is_array( $class ) ) {
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$class = preg_split( '#\s+#', $class );
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}
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$classes = array_map( 'esc_attr', $class );
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}
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if ( ! $post ) {
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return $classes;
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}
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$classes[] = 'post-' . $post->ID;
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if ( ! is_admin() )
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$classes[] = $post->post_type;
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$classes[] = 'type-' . $post->post_type;
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$classes[] = 'status-' . $post->post_status;
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// Post Format
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if ( post_type_supports( $post->post_type, 'post-formats' ) ) {
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$post_format = get_post_format( $post->ID );
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if ( $post_format && !is_wp_error($post_format) )
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$classes[] = 'format-' . sanitize_html_class( $post_format );
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else
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$classes[] = 'format-standard';
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}
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// Post requires password
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if ( post_password_required( $post->ID ) ) {
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$classes[] = 'post-password-required';
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// Post thumbnails
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} elseif ( ! is_attachment( $post ) && current_theme_supports( 'post-thumbnails' ) && has_post_thumbnail( $post->ID ) ) {
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$classes[] = 'has-post-thumbnail';
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}
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|
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|
// sticky for Sticky Posts
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if ( is_sticky( $post->ID ) ) {
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if ( is_home() && ! is_paged() ) {
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$classes[] = 'sticky';
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} elseif ( is_admin() ) {
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$classes[] = 'status-sticky';
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}
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}
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// hentry for hAtom compliance
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$classes[] = 'hentry';
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// All public taxonomies
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$taxonomies = get_taxonomies( array( 'public' => true ) );
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foreach ( (array) $taxonomies as $taxonomy ) {
|
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if ( is_object_in_taxonomy( $post->post_type, $taxonomy ) ) {
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foreach ( (array) get_the_terms( $post->ID, $taxonomy ) as $term ) {
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if ( empty( $term->slug ) ) {
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continue;
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}
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|
|
|
$term_class = sanitize_html_class( $term->slug, $term->term_id );
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if ( is_numeric( $term_class ) || ! trim( $term_class, '-' ) ) {
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$term_class = $term->term_id;
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|
}
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|
|
|
// 'post_tag' uses the 'tag' prefix for backward compatibility.
|
|
if ( 'post_tag' == $taxonomy ) {
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$classes[] = 'tag-' . $term_class;
|
|
} else {
|
|
$classes[] = sanitize_html_class( $taxonomy . '-' . $term_class, $taxonomy . '-' . $term->term_id );
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}
|
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}
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|
}
|
|
}
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|
|
$classes = array_map( 'esc_attr', $classes );
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|
|
/**
|
|
* Filter the list of CSS classes for the current post.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @param array $classes An array of post classes.
|
|
* @param string $class A comma-separated list of additional classes added to the post.
|
|
* @param int $post_id The post ID.
|
|
*/
|
|
$classes = apply_filters( 'post_class', $classes, $class, $post->ID );
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|
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return array_unique( $classes );
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}
|
|
|
|
/**
|
|
* Display the classes for the body element.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param string|array $class One or more classes to add to the class list.
|
|
*/
|
|
function body_class( $class = '' ) {
|
|
// Separates classes with a single space, collates classes for body element
|
|
echo 'class="' . join( ' ', get_body_class( $class ) ) . '"';
|
|
}
|
|
|
|
/**
|
|
* Retrieve the classes for the body element as an array.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param string|array $class One or more classes to add to the class list.
|
|
* @return array Array of classes.
|
|
*/
|
|
function get_body_class( $class = '' ) {
|
|
global $wp_query, $wpdb;
|
|
|
|
$classes = array();
|
|
|
|
if ( is_rtl() )
|
|
$classes[] = 'rtl';
|
|
|
|
if ( is_front_page() )
|
|
$classes[] = 'home';
|
|
if ( is_home() )
|
|
$classes[] = 'blog';
|
|
if ( is_archive() )
|
|
$classes[] = 'archive';
|
|
if ( is_date() )
|
|
$classes[] = 'date';
|
|
if ( is_search() ) {
|
|
$classes[] = 'search';
|
|
$classes[] = $wp_query->posts ? 'search-results' : 'search-no-results';
|
|
}
|
|
if ( is_paged() )
|
|
$classes[] = 'paged';
|
|
if ( is_attachment() )
|
|
$classes[] = 'attachment';
|
|
if ( is_404() )
|
|
$classes[] = 'error404';
|
|
|
|
if ( is_single() ) {
|
|
$post_id = $wp_query->get_queried_object_id();
|
|
$post = $wp_query->get_queried_object();
|
|
|
|
$classes[] = 'single';
|
|
if ( isset( $post->post_type ) ) {
|
|
$classes[] = 'single-' . sanitize_html_class($post->post_type, $post_id);
|
|
$classes[] = 'postid-' . $post_id;
|
|
|
|
// Post Format
|
|
if ( post_type_supports( $post->post_type, 'post-formats' ) ) {
|
|
$post_format = get_post_format( $post->ID );
|
|
|
|
if ( $post_format && !is_wp_error($post_format) )
|
|
$classes[] = 'single-format-' . sanitize_html_class( $post_format );
|
|
else
|
|
$classes[] = 'single-format-standard';
|
|
}
|
|
}
|
|
|
|
if ( is_attachment() ) {
|
|
$mime_type = get_post_mime_type($post_id);
|
|
$mime_prefix = array( 'application/', 'image/', 'text/', 'audio/', 'video/', 'music/' );
|
|
$classes[] = 'attachmentid-' . $post_id;
|
|
$classes[] = 'attachment-' . str_replace( $mime_prefix, '', $mime_type );
|
|
}
|
|
} elseif ( is_archive() ) {
|
|
if ( is_post_type_archive() ) {
|
|
$classes[] = 'post-type-archive';
|
|
$post_type = get_query_var( 'post_type' );
|
|
if ( is_array( $post_type ) )
|
|
$post_type = reset( $post_type );
|
|
$classes[] = 'post-type-archive-' . sanitize_html_class( $post_type );
|
|
} elseif ( is_author() ) {
|
|
$author = $wp_query->get_queried_object();
|
|
$classes[] = 'author';
|
|
if ( isset( $author->user_nicename ) ) {
|
|
$classes[] = 'author-' . sanitize_html_class( $author->user_nicename, $author->ID );
|
|
$classes[] = 'author-' . $author->ID;
|
|
}
|
|
} elseif ( is_category() ) {
|
|
$cat = $wp_query->get_queried_object();
|
|
$classes[] = 'category';
|
|
if ( isset( $cat->term_id ) ) {
|
|
$cat_class = sanitize_html_class( $cat->slug, $cat->term_id );
|
|
if ( is_numeric( $cat_class ) || ! trim( $cat_class, '-' ) ) {
|
|
$cat_class = $cat->term_id;
|
|
}
|
|
|
|
$classes[] = 'category-' . $cat_class;
|
|
$classes[] = 'category-' . $cat->term_id;
|
|
}
|
|
} elseif ( is_tag() ) {
|
|
$tag = $wp_query->get_queried_object();
|
|
$classes[] = 'tag';
|
|
if ( isset( $tag->term_id ) ) {
|
|
$tag_class = sanitize_html_class( $tag->slug, $tag->term_id );
|
|
if ( is_numeric( $tag_class ) || ! trim( $tag_class, '-' ) ) {
|
|
$tag_class = $tag->term_id;
|
|
}
|
|
|
|
$classes[] = 'tag-' . $tag_class;
|
|
$classes[] = 'tag-' . $tag->term_id;
|
|
}
|
|
} elseif ( is_tax() ) {
|
|
$term = $wp_query->get_queried_object();
|
|
if ( isset( $term->term_id ) ) {
|
|
$term_class = sanitize_html_class( $term->slug, $term->term_id );
|
|
if ( is_numeric( $term_class ) || ! trim( $term_class, '-' ) ) {
|
|
$term_class = $term->term_id;
|
|
}
|
|
|
|
$classes[] = 'tax-' . sanitize_html_class( $term->taxonomy );
|
|
$classes[] = 'term-' . $term_class;
|
|
$classes[] = 'term-' . $term->term_id;
|
|
}
|
|
}
|
|
} elseif ( is_page() ) {
|
|
$classes[] = 'page';
|
|
|
|
$page_id = $wp_query->get_queried_object_id();
|
|
|
|
$post = get_post($page_id);
|
|
|
|
$classes[] = 'page-id-' . $page_id;
|
|
|
|
if ( get_pages( array( 'parent' => $page_id, 'number' => 1 ) ) ) {
|
|
$classes[] = 'page-parent';
|
|
}
|
|
|
|
if ( $post->post_parent ) {
|
|
$classes[] = 'page-child';
|
|
$classes[] = 'parent-pageid-' . $post->post_parent;
|
|
}
|
|
if ( is_page_template() ) {
|
|
$classes[] = 'page-template';
|
|
|
|
$template_slug = get_page_template_slug( $page_id );
|
|
$template_parts = explode( '/', $template_slug );
|
|
|
|
foreach ( $template_parts as $part ) {
|
|
$classes[] = 'page-template-' . sanitize_html_class( str_replace( array( '.', '/' ), '-', basename( $part, '.php' ) ) );
|
|
}
|
|
$classes[] = 'page-template-' . sanitize_html_class( str_replace( '.', '-', $template_slug ) );
|
|
} else {
|
|
$classes[] = 'page-template-default';
|
|
}
|
|
}
|
|
|
|
if ( is_user_logged_in() )
|
|
$classes[] = 'logged-in';
|
|
|
|
if ( is_admin_bar_showing() ) {
|
|
$classes[] = 'admin-bar';
|
|
$classes[] = 'no-customize-support';
|
|
}
|
|
|
|
if ( get_background_color() !== get_theme_support( 'custom-background', 'default-color' ) || get_background_image() )
|
|
$classes[] = 'custom-background';
|
|
|
|
$page = $wp_query->get( 'page' );
|
|
|
|
if ( ! $page || $page < 2 )
|
|
$page = $wp_query->get( 'paged' );
|
|
|
|
if ( $page && $page > 1 && ! is_404() ) {
|
|
$classes[] = 'paged-' . $page;
|
|
|
|
if ( is_single() )
|
|
$classes[] = 'single-paged-' . $page;
|
|
elseif ( is_page() )
|
|
$classes[] = 'page-paged-' . $page;
|
|
elseif ( is_category() )
|
|
$classes[] = 'category-paged-' . $page;
|
|
elseif ( is_tag() )
|
|
$classes[] = 'tag-paged-' . $page;
|
|
elseif ( is_date() )
|
|
$classes[] = 'date-paged-' . $page;
|
|
elseif ( is_author() )
|
|
$classes[] = 'author-paged-' . $page;
|
|
elseif ( is_search() )
|
|
$classes[] = 'search-paged-' . $page;
|
|
elseif ( is_post_type_archive() )
|
|
$classes[] = 'post-type-paged-' . $page;
|
|
}
|
|
|
|
if ( ! empty( $class ) ) {
|
|
if ( !is_array( $class ) )
|
|
$class = preg_split( '#\s+#', $class );
|
|
$classes = array_merge( $classes, $class );
|
|
} else {
|
|
// Ensure that we always coerce class to being an array.
|
|
$class = array();
|
|
}
|
|
|
|
$classes = array_map( 'esc_attr', $classes );
|
|
|
|
/**
|
|
* Filter the list of CSS body classes for the current post or page.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param array $classes An array of body classes.
|
|
* @param string $class A comma-separated list of additional classes added to the body.
|
|
*/
|
|
$classes = apply_filters( 'body_class', $classes, $class );
|
|
|
|
return array_unique( $classes );
|
|
}
|
|
|
|
/**
|
|
* Whether post requires password and correct password has been provided.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @param int|WP_Post $post An optional post. Global $post used if not provided.
|
|
* @return bool false if a password is not required or the correct password cookie is present, true otherwise.
|
|
*/
|
|
function post_password_required( $post = null ) {
|
|
$post = get_post($post);
|
|
|
|
if ( empty( $post->post_password ) )
|
|
return false;
|
|
|
|
if ( ! isset( $_COOKIE['wp-postpass_' . COOKIEHASH] ) )
|
|
return true;
|
|
|
|
require_once ABSPATH . WPINC . '/class-phpass.php';
|
|
$hasher = new PasswordHash( 8, true );
|
|
|
|
$hash = wp_unslash( $_COOKIE[ 'wp-postpass_' . COOKIEHASH ] );
|
|
if ( 0 !== strpos( $hash, '$P$B' ) )
|
|
return true;
|
|
|
|
return ! $hasher->CheckPassword( $post->post_password, $hash );
|
|
}
|
|
|
|
//
|
|
// Page Template Functions for usage in Themes
|
|
//
|
|
|
|
/**
|
|
* The formatted output of a list of pages.
|
|
*
|
|
* Displays page links for paginated posts (i.e. includes the <!--nextpage-->.
|
|
* Quicktag one or more times). This tag must be within The Loop.
|
|
*
|
|
* @since 1.2.0
|
|
*
|
|
* @param string|array $args {
|
|
* Optional. Array or string of default arguments.
|
|
*
|
|
* @type string $before HTML or text to prepend to each link. Default is `<p> Pages:`.
|
|
* @type string $after HTML or text to append to each link. Default is `</p>`.
|
|
* @type string $link_before HTML or text to prepend to each link, inside the `<a>` tag.
|
|
* Also prepended to the current item, which is not linked. Default empty.
|
|
* @type string $link_after HTML or text to append to each Pages link inside the `<a>` tag.
|
|
* Also appended to the current item, which is not linked. Default empty.
|
|
* @type string $next_or_number Indicates whether page numbers should be used. Valid values are number
|
|
* and next. Default is 'number'.
|
|
* @type string $separator Text between pagination links. Default is ' '.
|
|
* @type string $nextpagelink Link text for the next page link, if available. Default is 'Next Page'.
|
|
* @type string $previouspagelink Link text for the previous page link, if available. Default is 'Previous Page'.
|
|
* @type string $pagelink Format string for page numbers. The % in the parameter string will be
|
|
* replaced with the page number, so 'Page %' generates "Page 1", "Page 2", etc.
|
|
* Defaults to '%', just the page number.
|
|
* @type int|bool $echo Whether to echo or not. Accepts 1|true or 0|false. Default 1|true.
|
|
* }
|
|
* @return string Formatted output in HTML.
|
|
*/
|
|
function wp_link_pages( $args = '' ) {
|
|
$defaults = array(
|
|
'before' => '<p>' . __( 'Pages:' ),
|
|
'after' => '</p>',
|
|
'link_before' => '',
|
|
'link_after' => '',
|
|
'next_or_number' => 'number',
|
|
'separator' => ' ',
|
|
'nextpagelink' => __( 'Next page' ),
|
|
'previouspagelink' => __( 'Previous page' ),
|
|
'pagelink' => '%',
|
|
'echo' => 1
|
|
);
|
|
|
|
$params = wp_parse_args( $args, $defaults );
|
|
|
|
/**
|
|
* Filter the arguments used in retrieving page links for paginated posts.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param array $params An array of arguments for page links for paginated posts.
|
|
*/
|
|
$r = apply_filters( 'wp_link_pages_args', $params );
|
|
|
|
global $page, $numpages, $multipage, $more;
|
|
|
|
$output = '';
|
|
if ( $multipage ) {
|
|
if ( 'number' == $r['next_or_number'] ) {
|
|
$output .= $r['before'];
|
|
for ( $i = 1; $i <= $numpages; $i++ ) {
|
|
$link = $r['link_before'] . str_replace( '%', $i, $r['pagelink'] ) . $r['link_after'];
|
|
if ( $i != $page || ! $more && 1 == $page ) {
|
|
$link = _wp_link_page( $i ) . $link . '</a>';
|
|
}
|
|
/**
|
|
* Filter the HTML output of individual page number links.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param string $link The page number HTML output.
|
|
* @param int $i Page number for paginated posts' page links.
|
|
*/
|
|
$link = apply_filters( 'wp_link_pages_link', $link, $i );
|
|
|
|
// Use the custom links separator beginning with the second link.
|
|
$output .= ( 1 === $i ) ? ' ' : $r['separator'];
|
|
$output .= $link;
|
|
}
|
|
$output .= $r['after'];
|
|
} elseif ( $more ) {
|
|
$output .= $r['before'];
|
|
$prev = $page - 1;
|
|
if ( $prev ) {
|
|
$link = _wp_link_page( $prev ) . $r['link_before'] . $r['previouspagelink'] . $r['link_after'] . '</a>';
|
|
|
|
/** This filter is documented in wp-includes/post-template.php */
|
|
$output .= apply_filters( 'wp_link_pages_link', $link, $prev );
|
|
}
|
|
$next = $page + 1;
|
|
if ( $next <= $numpages ) {
|
|
if ( $prev ) {
|
|
$output .= $r['separator'];
|
|
}
|
|
$link = _wp_link_page( $next ) . $r['link_before'] . $r['nextpagelink'] . $r['link_after'] . '</a>';
|
|
|
|
/** This filter is documented in wp-includes/post-template.php */
|
|
$output .= apply_filters( 'wp_link_pages_link', $link, $next );
|
|
}
|
|
$output .= $r['after'];
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Filter the HTML output of page links for paginated posts.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param string $output HTML output of paginated posts' page links.
|
|
* @param array $args An array of arguments.
|
|
*/
|
|
$html = apply_filters( 'wp_link_pages', $output, $args );
|
|
|
|
if ( $r['echo'] ) {
|
|
echo $html;
|
|
}
|
|
return $html;
|
|
}
|
|
|
|
/**
|
|
* Helper function for wp_link_pages().
|
|
*
|
|
* @since 3.1.0
|
|
* @access private
|
|
*
|
|
* @param int $i Page number.
|
|
* @return string Link.
|
|
*/
|
|
function _wp_link_page( $i ) {
|
|
global $wp_rewrite;
|
|
$post = get_post();
|
|
|
|
if ( 1 == $i ) {
|
|
$url = get_permalink();
|
|
} else {
|
|
if ( '' == get_option('permalink_structure') || in_array($post->post_status, array('draft', 'pending')) )
|
|
$url = add_query_arg( 'page', $i, get_permalink() );
|
|
elseif ( 'page' == get_option('show_on_front') && get_option('page_on_front') == $post->ID )
|
|
$url = trailingslashit(get_permalink()) . user_trailingslashit("$wp_rewrite->pagination_base/" . $i, 'single_paged');
|
|
else
|
|
$url = trailingslashit(get_permalink()) . user_trailingslashit($i, 'single_paged');
|
|
}
|
|
|
|
if ( is_preview() ) {
|
|
$url = add_query_arg( array(
|
|
'preview' => 'true'
|
|
), $url );
|
|
|
|
if ( ( 'draft' !== $post->post_status ) && isset( $_GET['preview_id'], $_GET['preview_nonce'] ) ) {
|
|
$url = add_query_arg( array(
|
|
'preview_id' => wp_unslash( $_GET['preview_id'] ),
|
|
'preview_nonce' => wp_unslash( $_GET['preview_nonce'] )
|
|
), $url );
|
|
}
|
|
}
|
|
|
|
return '<a href="' . esc_url( $url ) . '">';
|
|
}
|
|
|
|
//
|
|
// Post-meta: Custom per-post fields.
|
|
//
|
|
|
|
/**
|
|
* Retrieve post custom meta data field.
|
|
*
|
|
* @since 1.5.0
|
|
*
|
|
* @param string $key Meta data key name.
|
|
* @return bool|string|array Array of values or single value, if only one element exists. False will be returned if key does not exist.
|
|
*/
|
|
function post_custom( $key = '' ) {
|
|
$custom = get_post_custom();
|
|
|
|
if ( !isset( $custom[$key] ) )
|
|
return false;
|
|
elseif ( 1 == count($custom[$key]) )
|
|
return $custom[$key][0];
|
|
else
|
|
return $custom[$key];
|
|
}
|
|
|
|
/**
|
|
* Display list of post custom fields.
|
|
*
|
|
* @internal This will probably change at some point...
|
|
* @since 1.2.0
|
|
*/
|
|
function the_meta() {
|
|
if ( $keys = get_post_custom_keys() ) {
|
|
echo "<ul class='post-meta'>\n";
|
|
foreach ( (array) $keys as $key ) {
|
|
$keyt = trim($key);
|
|
if ( is_protected_meta( $keyt, 'post' ) )
|
|
continue;
|
|
$values = array_map('trim', get_post_custom_values($key));
|
|
$value = implode($values,', ');
|
|
|
|
/**
|
|
* Filter the HTML output of the li element in the post custom fields list.
|
|
*
|
|
* @since 2.2.0
|
|
*
|
|
* @param string $html The HTML output for the li element.
|
|
* @param string $key Meta key.
|
|
* @param string $value Meta value.
|
|
*/
|
|
echo apply_filters( 'the_meta_key', "<li><span class='post-meta-key'>$key:</span> $value</li>\n", $key, $value );
|
|
}
|
|
echo "</ul>\n";
|
|
}
|
|
}
|
|
|
|
//
|
|
// Pages
|
|
//
|
|
|
|
/**
|
|
* Retrieve or display list of pages as a dropdown (select list).
|
|
*
|
|
* @since 2.1.0
|
|
* @since 4.2.0 The `$value_field` argument was added.
|
|
*
|
|
* @param array|string $args {
|
|
* Optional. Array or string of arguments to generate a pages drop-down element.
|
|
*
|
|
* @type int $depth Maximum depth. Default 0.
|
|
* @type int $child_of Page ID to retrieve child pages of. Default 0.
|
|
* @type int|string $selected Value of the option that should be selected. Default 0.
|
|
* @type bool|int $echo Whether to echo or return the generated markup. Accepts 0, 1,
|
|
* or their bool equivalents. Default 1.
|
|
* @type string $name Value for the 'name' attribute of the select element.
|
|
* Default 'page_id'.
|
|
* @type string $id Value for the 'id' attribute of the select element.
|
|
* Defaults to the value of `$name`.
|
|
* @type string $show_option_none Text to display for showing no pages. Default empty (does not display).
|
|
* @type string $show_option_no_change Text to display for "no change" option. Default empty (does not display).
|
|
* @type string $option_none_value Value to use when no page is selected. Default empty.
|
|
* @type string $value_field Post field used to populate the 'value' attribute of the option
|
|
* elements. Accepts any valid post field. Default 'ID'.
|
|
* }
|
|
* @return string HTML content, if not displaying.
|
|
*/
|
|
function wp_dropdown_pages( $args = '' ) {
|
|
$defaults = array(
|
|
'depth' => 0, 'child_of' => 0,
|
|
'selected' => 0, 'echo' => 1,
|
|
'name' => 'page_id', 'id' => '',
|
|
'show_option_none' => '', 'show_option_no_change' => '',
|
|
'option_none_value' => '',
|
|
'value_field' => 'ID',
|
|
);
|
|
|
|
$r = wp_parse_args( $args, $defaults );
|
|
|
|
$pages = get_pages( $r );
|
|
$output = '';
|
|
// Back-compat with old system where both id and name were based on $name argument
|
|
if ( empty( $r['id'] ) ) {
|
|
$r['id'] = $r['name'];
|
|
}
|
|
|
|
if ( ! empty( $pages ) ) {
|
|
$output = "<select name='" . esc_attr( $r['name'] ) . "' id='" . esc_attr( $r['id'] ) . "'>\n";
|
|
if ( $r['show_option_no_change'] ) {
|
|
$output .= "\t<option value=\"-1\">" . $r['show_option_no_change'] . "</option>\n";
|
|
}
|
|
if ( $r['show_option_none'] ) {
|
|
$output .= "\t<option value=\"" . esc_attr( $r['option_none_value'] ) . '">' . $r['show_option_none'] . "</option>\n";
|
|
}
|
|
$output .= walk_page_dropdown_tree( $pages, $r['depth'], $r );
|
|
$output .= "</select>\n";
|
|
}
|
|
|
|
/**
|
|
* Filter the HTML output of a list of pages as a drop down.
|
|
*
|
|
* @since 2.1.0
|
|
*
|
|
* @param string $output HTML output for drop down list of pages.
|
|
*/
|
|
$html = apply_filters( 'wp_dropdown_pages', $output );
|
|
|
|
if ( $r['echo'] ) {
|
|
echo $html;
|
|
}
|
|
return $html;
|
|
}
|
|
|
|
/**
|
|
* Retrieve or display list of pages in list (li) format.
|
|
*
|
|
* @since 1.5.0
|
|
*
|
|
* @see get_pages()
|
|
*
|
|
* @param array|string $args {
|
|
* Array or string of arguments. Optional.
|
|
*
|
|
* @type int $child_of Display only the sub-pages of a single page by ID. Default 0 (all pages).
|
|
* @type string $authors Comma-separated list of author IDs. Default empty (all authors).
|
|
* @type string $date_format PHP date format to use for the listed pages. Relies on the 'show_date' parameter.
|
|
* Default is the value of 'date_format' option.
|
|
* @type int $depth Number of levels in the hierarchy of pages to include in the generated list.
|
|
* Accepts -1 (any depth), 0 (all pages), 1 (top-level pages only), and n (pages to
|
|
* the given n depth). Default 0.
|
|
* @type bool $echo Whether or not to echo the list of pages. Default true.
|
|
* @type string $exclude Comma-separated list of page IDs to exclude. Default empty.
|
|
* @type array $include Comma-separated list of page IDs to include. Default empty.
|
|
* @type string $link_after Text or HTML to follow the page link label. Default null.
|
|
* @type string $link_before Text or HTML to precede the page link label. Default null.
|
|
* @type string $post_type Post type to query for. Default 'page'.
|
|
* @type string $post_status Comma-separated list of post statuses to include. Default 'publish'.
|
|
* @type string $show_date Whether to display the page publish or modified date for each page. Accepts
|
|
* 'modified' or any other value. An empty value hides the date. Default empty.
|
|
* @type string $sort_column Comma-separated list of column names to sort the pages by. Accepts 'post_author',
|
|
* 'post_date', 'post_title', 'post_name', 'post_modified', 'post_modified_gmt',
|
|
* 'menu_order', 'post_parent', 'ID', 'rand', or 'comment_count'. Default 'post_title'.
|
|
* @type string $title_li List heading. Passing a null or empty value will result in no heading, and the list
|
|
* will not be wrapped with unordered list `<ul>` tags. Default 'Pages'.
|
|
* @type Walker $walker Walker instance to use for listing pages. Default empty (Walker_Page).
|
|
* }
|
|
* @return string HTML list of pages.
|
|
*/
|
|
function wp_list_pages( $args = '' ) {
|
|
$defaults = array(
|
|
'depth' => 0, 'show_date' => '',
|
|
'date_format' => get_option( 'date_format' ),
|
|
'child_of' => 0, 'exclude' => '',
|
|
'title_li' => __( 'Pages' ), 'echo' => 1,
|
|
'authors' => '', 'sort_column' => 'menu_order, post_title',
|
|
'link_before' => '', 'link_after' => '', 'walker' => '',
|
|
);
|
|
|
|
$r = wp_parse_args( $args, $defaults );
|
|
|
|
$output = '';
|
|
$current_page = 0;
|
|
|
|
// sanitize, mostly to keep spaces out
|
|
$r['exclude'] = preg_replace( '/[^0-9,]/', '', $r['exclude'] );
|
|
|
|
// Allow plugins to filter an array of excluded pages (but don't put a nullstring into the array)
|
|
$exclude_array = ( $r['exclude'] ) ? explode( ',', $r['exclude'] ) : array();
|
|
|
|
/**
|
|
* Filter the array of pages to exclude from the pages list.
|
|
*
|
|
* @since 2.1.0
|
|
*
|
|
* @param array $exclude_array An array of page IDs to exclude.
|
|
*/
|
|
$r['exclude'] = implode( ',', apply_filters( 'wp_list_pages_excludes', $exclude_array ) );
|
|
|
|
// Query pages.
|
|
$r['hierarchical'] = 0;
|
|
$pages = get_pages( $r );
|
|
|
|
if ( ! empty( $pages ) ) {
|
|
if ( $r['title_li'] ) {
|
|
$output .= '<li class="pagenav">' . $r['title_li'] . '<ul>';
|
|
}
|
|
global $wp_query;
|
|
if ( is_page() || is_attachment() || $wp_query->is_posts_page ) {
|
|
$current_page = get_queried_object_id();
|
|
} elseif ( is_singular() ) {
|
|
$queried_object = get_queried_object();
|
|
if ( is_post_type_hierarchical( $queried_object->post_type ) ) {
|
|
$current_page = $queried_object->ID;
|
|
}
|
|
}
|
|
|
|
$output .= walk_page_tree( $pages, $r['depth'], $current_page, $r );
|
|
|
|
if ( $r['title_li'] ) {
|
|
$output .= '</ul></li>';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Filter the HTML output of the pages to list.
|
|
*
|
|
* @since 1.5.1
|
|
*
|
|
* @see wp_list_pages()
|
|
*
|
|
* @param string $output HTML output of the pages list.
|
|
* @param array $r An array of page-listing arguments.
|
|
*/
|
|
$html = apply_filters( 'wp_list_pages', $output, $r );
|
|
|
|
if ( $r['echo'] ) {
|
|
echo $html;
|
|
} else {
|
|
return $html;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Display or retrieve list of pages with optional home link.
|
|
*
|
|
* The arguments are listed below and part of the arguments are for {@link
|
|
* wp_list_pages()} function. Check that function for more info on those
|
|
* arguments.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @param array|string $args {
|
|
* Optional. Arguments to generate a page menu. See wp_list_pages() for additional arguments.
|
|
*
|
|
* @type string $sort_column How to short the list of pages. Accepts post column names.
|
|
* Default 'menu_order, post_title'.
|
|
* @type string $menu_class Class to use for the div ID containing the page list. Default 'menu'.
|
|
* @type bool $echo Whether to echo the list or return it. Accepts true (echo) or false (return).
|
|
* Default true.
|
|
* @type string $link_before The HTML or text to prepend to $show_home text. Default empty.
|
|
* @type string $link_after The HTML or text to append to $show_home text. Default empty.
|
|
* @type int|bool|string $show_home Whether to display the link to the home page. Can just enter the text
|
|
* you'd like shown for the home link. 1|true defaults to 'Home'.
|
|
* }
|
|
* @return string html menu
|
|
*/
|
|
function wp_page_menu( $args = array() ) {
|
|
$defaults = array('sort_column' => 'menu_order, post_title', 'menu_class' => 'menu', 'echo' => true, 'link_before' => '', 'link_after' => '');
|
|
$args = wp_parse_args( $args, $defaults );
|
|
|
|
/**
|
|
* Filter the arguments used to generate a page-based menu.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @see wp_page_menu()
|
|
*
|
|
* @param array $args An array of page menu arguments.
|
|
*/
|
|
$args = apply_filters( 'wp_page_menu_args', $args );
|
|
|
|
$menu = '';
|
|
|
|
$list_args = $args;
|
|
|
|
// Show Home in the menu
|
|
if ( ! empty($args['show_home']) ) {
|
|
if ( true === $args['show_home'] || '1' === $args['show_home'] || 1 === $args['show_home'] )
|
|
$text = __('Home');
|
|
else
|
|
$text = $args['show_home'];
|
|
$class = '';
|
|
if ( is_front_page() && !is_paged() )
|
|
$class = 'class="current_page_item"';
|
|
$menu .= '<li ' . $class . '><a href="' . home_url( '/' ) . '">' . $args['link_before'] . $text . $args['link_after'] . '</a></li>';
|
|
// If the front page is a page, add it to the exclude list
|
|
if (get_option('show_on_front') == 'page') {
|
|
if ( !empty( $list_args['exclude'] ) ) {
|
|
$list_args['exclude'] .= ',';
|
|
} else {
|
|
$list_args['exclude'] = '';
|
|
}
|
|
$list_args['exclude'] .= get_option('page_on_front');
|
|
}
|
|
}
|
|
|
|
$list_args['echo'] = false;
|
|
$list_args['title_li'] = '';
|
|
$menu .= str_replace( array( "\r", "\n", "\t" ), '', wp_list_pages($list_args) );
|
|
|
|
if ( $menu )
|
|
$menu = '<ul>' . $menu . '</ul>';
|
|
|
|
$menu = '<div class="' . esc_attr($args['menu_class']) . '">' . $menu . "</div>\n";
|
|
|
|
/**
|
|
* Filter the HTML output of a page-based menu.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @see wp_page_menu()
|
|
*
|
|
* @param string $menu The HTML output.
|
|
* @param array $args An array of arguments.
|
|
*/
|
|
$menu = apply_filters( 'wp_page_menu', $menu, $args );
|
|
if ( $args['echo'] )
|
|
echo $menu;
|
|
else
|
|
return $menu;
|
|
}
|
|
|
|
//
|
|
// Page helpers
|
|
//
|
|
|
|
/**
|
|
* Retrieve HTML list content for page list.
|
|
*
|
|
* @uses Walker_Page to create HTML list content.
|
|
* @since 2.1.0
|
|
* @see Walker_Page::walk() for parameters and return description.
|
|
*/
|
|
function walk_page_tree($pages, $depth, $current_page, $r) {
|
|
if ( empty($r['walker']) )
|
|
$walker = new Walker_Page;
|
|
else
|
|
$walker = $r['walker'];
|
|
|
|
foreach ( (array) $pages as $page ) {
|
|
if ( $page->post_parent )
|
|
$r['pages_with_children'][ $page->post_parent ] = true;
|
|
}
|
|
|
|
$args = array($pages, $depth, $r, $current_page);
|
|
return call_user_func_array(array($walker, 'walk'), $args);
|
|
}
|
|
|
|
/**
|
|
* Retrieve HTML dropdown (select) content for page list.
|
|
*
|
|
* @uses Walker_PageDropdown to create HTML dropdown content.
|
|
* @since 2.1.0
|
|
* @see Walker_PageDropdown::walk() for parameters and return description.
|
|
*/
|
|
function walk_page_dropdown_tree() {
|
|
$args = func_get_args();
|
|
if ( empty($args[2]['walker']) ) // the user's options are the third parameter
|
|
$walker = new Walker_PageDropdown;
|
|
else
|
|
$walker = $args[2]['walker'];
|
|
|
|
return call_user_func_array(array($walker, 'walk'), $args);
|
|
}
|
|
|
|
/**
|
|
* Create HTML list of pages.
|
|
*
|
|
* @since 2.1.0
|
|
* @uses Walker
|
|
*/
|
|
class Walker_Page extends Walker {
|
|
/**
|
|
* @see Walker::$tree_type
|
|
* @since 2.1.0
|
|
* @var string
|
|
*/
|
|
public $tree_type = 'page';
|
|
|
|
/**
|
|
* @see Walker::$db_fields
|
|
* @since 2.1.0
|
|
* @todo Decouple this.
|
|
* @var array
|
|
*/
|
|
public $db_fields = array ('parent' => 'post_parent', 'id' => 'ID');
|
|
|
|
/**
|
|
* @see Walker::start_lvl()
|
|
* @since 2.1.0
|
|
*
|
|
* @param string $output Passed by reference. Used to append additional content.
|
|
* @param int $depth Depth of page. Used for padding.
|
|
* @param array $args
|
|
*/
|
|
public function start_lvl( &$output, $depth = 0, $args = array() ) {
|
|
$indent = str_repeat("\t", $depth);
|
|
$output .= "\n$indent<ul class='children'>\n";
|
|
}
|
|
|
|
/**
|
|
* @see Walker::end_lvl()
|
|
* @since 2.1.0
|
|
*
|
|
* @param string $output Passed by reference. Used to append additional content.
|
|
* @param int $depth Depth of page. Used for padding.
|
|
* @param array $args
|
|
*/
|
|
public function end_lvl( &$output, $depth = 0, $args = array() ) {
|
|
$indent = str_repeat("\t", $depth);
|
|
$output .= "$indent</ul>\n";
|
|
}
|
|
|
|
/**
|
|
* @see Walker::start_el()
|
|
* @since 2.1.0
|
|
*
|
|
* @param string $output Passed by reference. Used to append additional content.
|
|
* @param object $page Page data object.
|
|
* @param int $depth Depth of page. Used for padding.
|
|
* @param int $current_page Page ID.
|
|
* @param array $args
|
|
*/
|
|
public function start_el( &$output, $page, $depth = 0, $args = array(), $current_page = 0 ) {
|
|
if ( $depth ) {
|
|
$indent = str_repeat( "\t", $depth );
|
|
} else {
|
|
$indent = '';
|
|
}
|
|
|
|
$css_class = array( 'page_item', 'page-item-' . $page->ID );
|
|
|
|
if ( isset( $args['pages_with_children'][ $page->ID ] ) ) {
|
|
$css_class[] = 'page_item_has_children';
|
|
}
|
|
|
|
if ( ! empty( $current_page ) ) {
|
|
$_current_page = get_post( $current_page );
|
|
if ( $_current_page && in_array( $page->ID, $_current_page->ancestors ) ) {
|
|
$css_class[] = 'current_page_ancestor';
|
|
}
|
|
if ( $page->ID == $current_page ) {
|
|
$css_class[] = 'current_page_item';
|
|
} elseif ( $_current_page && $page->ID == $_current_page->post_parent ) {
|
|
$css_class[] = 'current_page_parent';
|
|
}
|
|
} elseif ( $page->ID == get_option('page_for_posts') ) {
|
|
$css_class[] = 'current_page_parent';
|
|
}
|
|
|
|
/**
|
|
* Filter the list of CSS classes to include with each page item in the list.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @see wp_list_pages()
|
|
*
|
|
* @param array $css_class An array of CSS classes to be applied
|
|
* to each list item.
|
|
* @param WP_Post $page Page data object.
|
|
* @param int $depth Depth of page, used for padding.
|
|
* @param array $args An array of arguments.
|
|
* @param int $current_page ID of the current page.
|
|
*/
|
|
$css_classes = implode( ' ', apply_filters( 'page_css_class', $css_class, $page, $depth, $args, $current_page ) );
|
|
|
|
if ( '' === $page->post_title ) {
|
|
$page->post_title = sprintf( __( '#%d (no title)' ), $page->ID );
|
|
}
|
|
|
|
$args['link_before'] = empty( $args['link_before'] ) ? '' : $args['link_before'];
|
|
$args['link_after'] = empty( $args['link_after'] ) ? '' : $args['link_after'];
|
|
|
|
/** This filter is documented in wp-includes/post-template.php */
|
|
$output .= $indent . sprintf(
|
|
'<li class="%s"><a href="%s">%s%s%s</a>',
|
|
$css_classes,
|
|
get_permalink( $page->ID ),
|
|
$args['link_before'],
|
|
apply_filters( 'the_title', $page->post_title, $page->ID ),
|
|
$args['link_after']
|
|
);
|
|
|
|
if ( ! empty( $args['show_date'] ) ) {
|
|
if ( 'modified' == $args['show_date'] ) {
|
|
$time = $page->post_modified;
|
|
} else {
|
|
$time = $page->post_date;
|
|
}
|
|
|
|
$date_format = empty( $args['date_format'] ) ? '' : $args['date_format'];
|
|
$output .= " " . mysql2date( $date_format, $time );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @see Walker::end_el()
|
|
* @since 2.1.0
|
|
*
|
|
* @param string $output Passed by reference. Used to append additional content.
|
|
* @param object $page Page data object. Not used.
|
|
* @param int $depth Depth of page. Not Used.
|
|
* @param array $args
|
|
*/
|
|
public function end_el( &$output, $page, $depth = 0, $args = array() ) {
|
|
$output .= "</li>\n";
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* Create HTML dropdown list of pages.
|
|
*
|
|
* @since 2.1.0
|
|
* @uses Walker
|
|
*/
|
|
class Walker_PageDropdown extends Walker {
|
|
/**
|
|
* @see Walker::$tree_type
|
|
* @since 2.1.0
|
|
* @var string
|
|
*/
|
|
public $tree_type = 'page';
|
|
|
|
/**
|
|
* @see Walker::$db_fields
|
|
* @since 2.1.0
|
|
* @todo Decouple this
|
|
* @var array
|
|
*/
|
|
public $db_fields = array ('parent' => 'post_parent', 'id' => 'ID');
|
|
|
|
/**
|
|
* @see Walker::start_el()
|
|
* @since 2.1.0
|
|
*
|
|
* @param string $output Passed by reference. Used to append additional content.
|
|
* @param object $page Page data object.
|
|
* @param int $depth Depth of page in reference to parent pages. Used for padding.
|
|
* @param array $args Uses 'selected' argument for selected page to set selected HTML attribute for option
|
|
* element. Uses 'value_field' argument to fill "value" attribute. See {@see wp_dropdown_pages()}.
|
|
* @param int $id
|
|
*/
|
|
public function start_el( &$output, $page, $depth = 0, $args = array(), $id = 0 ) {
|
|
$pad = str_repeat(' ', $depth * 3);
|
|
|
|
if ( ! isset( $args['value_field'] ) || ! isset( $page->{$args['value_field']} ) ) {
|
|
$args['value_field'] = 'ID';
|
|
}
|
|
|
|
$output .= "\t<option class=\"level-$depth\" value=\"" . esc_attr( $page->{$args['value_field']} ) . "\"";
|
|
if ( $page->ID == $args['selected'] )
|
|
$output .= ' selected="selected"';
|
|
$output .= '>';
|
|
|
|
$title = $page->post_title;
|
|
if ( '' === $title ) {
|
|
$title = sprintf( __( '#%d (no title)' ), $page->ID );
|
|
}
|
|
|
|
/**
|
|
* Filter the page title when creating an HTML drop-down list of pages.
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @param string $title Page title.
|
|
* @param object $page Page data object.
|
|
*/
|
|
$title = apply_filters( 'list_pages', $title, $page );
|
|
$output .= $pad . esc_html( $title );
|
|
$output .= "</option>\n";
|
|
}
|
|
}
|
|
|
|
//
|
|
// Attachments
|
|
//
|
|
|
|
/**
|
|
* Display an attachment page link using an image or icon.
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @param int|WP_Post $id Optional. Post ID or post object.
|
|
* @param bool $fullsize Optional, default is false. Whether to use full size.
|
|
* @param bool $deprecated Deprecated. Not used.
|
|
* @param bool $permalink Optional, default is false. Whether to include permalink.
|
|
*/
|
|
function the_attachment_link( $id = 0, $fullsize = false, $deprecated = false, $permalink = false ) {
|
|
if ( !empty( $deprecated ) )
|
|
_deprecated_argument( __FUNCTION__, '2.5' );
|
|
|
|
if ( $fullsize )
|
|
echo wp_get_attachment_link($id, 'full', $permalink);
|
|
else
|
|
echo wp_get_attachment_link($id, 'thumbnail', $permalink);
|
|
}
|
|
|
|
/**
|
|
* Retrieve an attachment page link using an image or icon, if possible.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param int|WP_Post $id Optional. Post ID or post object.
|
|
* @param string $size Optional, default is 'thumbnail'. Size of image, either array or string.
|
|
* @param bool $permalink Optional, default is false. Whether to add permalink to image.
|
|
* @param bool $icon Optional, default is false. Whether to include icon.
|
|
* @param string|bool $text Optional, default is false. If string, then will be link text.
|
|
* @param array|string $attr Optional. Array or string of attributes.
|
|
* @return string HTML content.
|
|
*/
|
|
function wp_get_attachment_link( $id = 0, $size = 'thumbnail', $permalink = false, $icon = false, $text = false, $attr = '' ) {
|
|
$id = intval( $id );
|
|
$_post = get_post( $id );
|
|
|
|
if ( empty( $_post ) || ( 'attachment' != $_post->post_type ) || ! $url = wp_get_attachment_url( $_post->ID ) )
|
|
return __( 'Missing Attachment' );
|
|
|
|
if ( $permalink )
|
|
$url = get_attachment_link( $_post->ID );
|
|
|
|
if ( $text ) {
|
|
$link_text = $text;
|
|
} elseif ( $size && 'none' != $size ) {
|
|
$link_text = wp_get_attachment_image( $id, $size, $icon, $attr );
|
|
} else {
|
|
$link_text = '';
|
|
}
|
|
|
|
if ( trim( $link_text ) == '' )
|
|
$link_text = $_post->post_title;
|
|
|
|
/**
|
|
* Filter a retrieved attachment page link.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @param string $link_html The page link HTML output.
|
|
* @param int $id Post ID.
|
|
* @param string $size Image size. Default 'thumbnail'.
|
|
* @param bool $permalink Whether to add permalink to image. Default false.
|
|
* @param bool $icon Whether to include an icon. Default false.
|
|
* @param string|bool $text If string, will be link text. Default false.
|
|
*/
|
|
return apply_filters( 'wp_get_attachment_link', "<a href='$url'>$link_text</a>", $id, $size, $permalink, $icon, $text );
|
|
}
|
|
|
|
/**
|
|
* Wrap attachment in paragraph tag before content.
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @param string $content
|
|
* @return string
|
|
*/
|
|
function prepend_attachment($content) {
|
|
$post = get_post();
|
|
|
|
if ( empty($post->post_type) || $post->post_type != 'attachment' )
|
|
return $content;
|
|
|
|
if ( wp_attachment_is( 'video', $post ) ) {
|
|
$meta = wp_get_attachment_metadata( get_the_ID() );
|
|
$atts = array( 'src' => wp_get_attachment_url() );
|
|
if ( ! empty( $meta['width'] ) && ! empty( $meta['height'] ) ) {
|
|
$atts['width'] = (int) $meta['width'];
|
|
$atts['height'] = (int) $meta['height'];
|
|
}
|
|
if ( has_post_thumbnail() ) {
|
|
$atts['poster'] = wp_get_attachment_url( get_post_thumbnail_id() );
|
|
}
|
|
$p = wp_video_shortcode( $atts );
|
|
} elseif ( wp_attachment_is( 'audio', $post ) ) {
|
|
$p = wp_audio_shortcode( array( 'src' => wp_get_attachment_url() ) );
|
|
} else {
|
|
$p = '<p class="attachment">';
|
|
// show the medium sized image representation of the attachment if available, and link to the raw file
|
|
$p .= wp_get_attachment_link(0, 'medium', false);
|
|
$p .= '</p>';
|
|
}
|
|
|
|
/**
|
|
* Filter the attachment markup to be prepended to the post content.
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @see prepend_attachment()
|
|
*
|
|
* @param string $p The attachment HTML output.
|
|
*/
|
|
$p = apply_filters( 'prepend_attachment', $p );
|
|
|
|
return "$p\n$content";
|
|
}
|
|
|
|
//
|
|
// Misc
|
|
//
|
|
|
|
/**
|
|
* Retrieve protected post password form content.
|
|
*
|
|
* @since 1.0.0
|
|
*
|
|
* @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
|
|
* @return string HTML content for password form for password protected post.
|
|
*/
|
|
function get_the_password_form( $post = 0 ) {
|
|
$post = get_post( $post );
|
|
$label = 'pwbox-' . ( empty($post->ID) ? rand() : $post->ID );
|
|
$output = '<form action="' . esc_url( site_url( 'wp-login.php?action=postpass', 'login_post' ) ) . '" class="post-password-form" method="post">
|
|
<p>' . __( 'This content is password protected. To view it please enter your password below:' ) . '</p>
|
|
<p><label for="' . $label . '">' . __( 'Password:' ) . ' <input name="post_password" id="' . $label . '" type="password" size="20" /></label> <input type="submit" name="Submit" value="' . esc_attr__( 'Submit' ) . '" /></p></form>
|
|
';
|
|
|
|
/**
|
|
* Filter the HTML output for the protected post password form.
|
|
*
|
|
* If modifying the password field, please note that the core database schema
|
|
* limits the password field to 20 characters regardless of the value of the
|
|
* size attribute in the form input.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @param string $output The password form HTML output.
|
|
*/
|
|
return apply_filters( 'the_password_form', $output );
|
|
}
|
|
|
|
/**
|
|
* Whether currently in a page template.
|
|
*
|
|
* This template tag allows you to determine if you are in a page template.
|
|
* You can optionally provide a template name or array of template names
|
|
* and then the check will be specific to that template.
|
|
*
|
|
* @since 2.5.0
|
|
* @since 4.2.0 The `$template` parameter was changed to also accept an array of page templates.
|
|
*
|
|
* @param string|array $template The specific template name or array of templates to match.
|
|
* @return bool True on success, false on failure.
|
|
*/
|
|
function is_page_template( $template = '' ) {
|
|
if ( ! is_page() )
|
|
return false;
|
|
|
|
$page_template = get_page_template_slug( get_queried_object_id() );
|
|
|
|
if ( empty( $template ) )
|
|
return (bool) $page_template;
|
|
|
|
if ( $template == $page_template )
|
|
return true;
|
|
|
|
if ( is_array( $template ) ) {
|
|
if ( ( in_array( 'default', $template, true ) && ! $page_template )
|
|
|| in_array( $page_template, $template, true )
|
|
) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
if ( 'default' == $template && ! $page_template )
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Get the specific template name for a page.
|
|
*
|
|
* @since 3.4.0
|
|
*
|
|
* @param int $post_id Optional. The page ID to check. Defaults to the current post, when used in the loop.
|
|
* @return string|bool Page template filename. Returns an empty string when the default page template
|
|
* is in use. Returns false if the post is not a page.
|
|
*/
|
|
function get_page_template_slug( $post_id = null ) {
|
|
$post = get_post( $post_id );
|
|
if ( ! $post || 'page' != $post->post_type )
|
|
return false;
|
|
$template = get_post_meta( $post->ID, '_wp_page_template', true );
|
|
if ( ! $template || 'default' == $template )
|
|
return '';
|
|
return $template;
|
|
}
|
|
|
|
/**
|
|
* Retrieve formatted date timestamp of a revision (linked to that revisions's page).
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @param int|object $revision Revision ID or revision object.
|
|
* @param bool $link Optional, default is true. Link to revisions's page?
|
|
* @return string i18n formatted datetimestamp or localized 'Current Revision'.
|
|
*/
|
|
function wp_post_revision_title( $revision, $link = true ) {
|
|
if ( !$revision = get_post( $revision ) )
|
|
return $revision;
|
|
|
|
if ( !in_array( $revision->post_type, array( 'post', 'page', 'revision' ) ) )
|
|
return false;
|
|
|
|
/* translators: revision date format, see http://php.net/date */
|
|
$datef = _x( 'F j, Y @ H:i:s', 'revision date format' );
|
|
/* translators: 1: date */
|
|
$autosavef = _x( '%1$s [Autosave]', 'post revision title extra' );
|
|
/* translators: 1: date */
|
|
$currentf = _x( '%1$s [Current Revision]', 'post revision title extra' );
|
|
|
|
$date = date_i18n( $datef, strtotime( $revision->post_modified ) );
|
|
if ( $link && current_user_can( 'edit_post', $revision->ID ) && $link = get_edit_post_link( $revision->ID ) )
|
|
$date = "<a href='$link'>$date</a>";
|
|
|
|
if ( !wp_is_post_revision( $revision ) )
|
|
$date = sprintf( $currentf, $date );
|
|
elseif ( wp_is_post_autosave( $revision ) )
|
|
$date = sprintf( $autosavef, $date );
|
|
|
|
return $date;
|
|
}
|
|
|
|
/**
|
|
* Retrieve formatted date timestamp of a revision (linked to that revisions's page).
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param int|object $revision Revision ID or revision object.
|
|
* @param bool $link Optional, default is true. Link to revisions's page?
|
|
* @return string gravatar, user, i18n formatted datetimestamp or localized 'Current Revision'.
|
|
*/
|
|
function wp_post_revision_title_expanded( $revision, $link = true ) {
|
|
if ( !$revision = get_post( $revision ) )
|
|
return $revision;
|
|
|
|
if ( !in_array( $revision->post_type, array( 'post', 'page', 'revision' ) ) )
|
|
return false;
|
|
|
|
$author = get_the_author_meta( 'display_name', $revision->post_author );
|
|
/* translators: revision date format, see http://php.net/date */
|
|
$datef = _x( 'F j, Y @ H:i:s', 'revision date format' );
|
|
|
|
$gravatar = get_avatar( $revision->post_author, 24 );
|
|
|
|
$date = date_i18n( $datef, strtotime( $revision->post_modified ) );
|
|
if ( $link && current_user_can( 'edit_post', $revision->ID ) && $link = get_edit_post_link( $revision->ID ) )
|
|
$date = "<a href='$link'>$date</a>";
|
|
|
|
$revision_date_author = sprintf(
|
|
/* translators: post revision title: 1: author avatar, 2: author name, 3: time ago, 4: date */
|
|
_x( '%1$s %2$s, %3$s ago (%4$s)', 'post revision title' ),
|
|
$gravatar,
|
|
$author,
|
|
human_time_diff( strtotime( $revision->post_modified ), current_time( 'timestamp' ) ),
|
|
$date
|
|
);
|
|
|
|
$autosavef = __( '%1$s [Autosave]' );
|
|
$currentf = __( '%1$s [Current Revision]' );
|
|
|
|
if ( !wp_is_post_revision( $revision ) )
|
|
$revision_date_author = sprintf( $currentf, $revision_date_author );
|
|
elseif ( wp_is_post_autosave( $revision ) )
|
|
$revision_date_author = sprintf( $autosavef, $revision_date_author );
|
|
|
|
return $revision_date_author;
|
|
}
|
|
|
|
/**
|
|
* Display list of a post's revisions.
|
|
*
|
|
* Can output either a UL with edit links or a TABLE with diff interface, and
|
|
* restore action links.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @param int|WP_Post $post_id Optional. Post ID or WP_Post object. Default is global $post.
|
|
* @param string $type 'all' (default), 'revision' or 'autosave'
|
|
* @return null
|
|
*/
|
|
function wp_list_post_revisions( $post_id = 0, $type = 'all' ) {
|
|
if ( ! $post = get_post( $post_id ) )
|
|
return;
|
|
|
|
// $args array with (parent, format, right, left, type) deprecated since 3.6
|
|
if ( is_array( $type ) ) {
|
|
$type = ! empty( $type['type'] ) ? $type['type'] : $type;
|
|
_deprecated_argument( __FUNCTION__, '3.6' );
|
|
}
|
|
|
|
if ( ! $revisions = wp_get_post_revisions( $post->ID ) )
|
|
return;
|
|
|
|
$rows = '';
|
|
foreach ( $revisions as $revision ) {
|
|
if ( ! current_user_can( 'read_post', $revision->ID ) )
|
|
continue;
|
|
|
|
$is_autosave = wp_is_post_autosave( $revision );
|
|
if ( ( 'revision' === $type && $is_autosave ) || ( 'autosave' === $type && ! $is_autosave ) )
|
|
continue;
|
|
|
|
$rows .= "\t<li>" . wp_post_revision_title_expanded( $revision ) . "</li>\n";
|
|
}
|
|
|
|
echo "<div class='hide-if-js'><p>" . __( 'JavaScript must be enabled to use this feature.' ) . "</p></div>\n";
|
|
|
|
echo "<ul class='post-revisions hide-if-no-js'>\n";
|
|
echo $rows;
|
|
echo "</ul>";
|
|
}
|