WordPress/wp-includes/template.php
John Blackbourn a027edc277 Comments: The year is 2003. Permalinks are a new thing and everyone's using Blogger. It's a time when opening a modal window in JavaScript to view a section of a website is not a completely weird thing, although many users get annoyed by it. b2 has recently become WordPress, and with it comes a bunch of functionality that will become stale over the next decade, remnants of simpler times.
Twelve years later, after no fewer than three themes have intentionally implemented popup comments in their functionality, before being abandoned for at least the last six years, we've reached a time where we can put this era behind us. A time when we can remove comment popup functionality from WordPress.

If this breaks the internet, I'll eat my hat.

Fixes #28617

Built from https://develop.svn.wordpress.org/trunk@35848


git-svn-id: http://core.svn.wordpress.org/trunk@35812 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2015-12-10 03:06:30 +00:00

543 lines
14 KiB
PHP

<?php
/**
* Template loading functions.
*
* @package WordPress
* @subpackage Template
*/
/**
* Retrieve path to a template
*
* Used to quickly retrieve the path of a template without including the file
* extension. It will also check the parent theme, if the file exists, with
* the use of {@link locate_template()}. Allows for more generic template location
* without the use of the other get_*_template() functions.
*
* @since 1.5.0
*
* @param string $type Filename without extension.
* @param array $templates An optional list of template candidates
* @return string Full path to template file.
*/
function get_query_template( $type, $templates = array() ) {
$type = preg_replace( '|[^a-z0-9-]+|', '', $type );
if ( empty( $templates ) )
$templates = array("{$type}.php");
$template = locate_template( $templates );
/**
* Filter the path of the queried template by type.
*
* The dynamic portion of the hook name, `$type`, refers to the filename -- minus the file
* extension and any non-alphanumeric characters delimiting words -- of the file to load.
* This hook also applies to various types of files loaded as part of the Template Hierarchy.
*
* Possible values for `$type` include: 'index', '404', 'archive', 'author', 'category', 'tag', 'taxonomy', 'date',
* 'home', 'front_page', 'page', 'paged', 'search', 'single', 'singular', and 'attachment'.
*
* @since 1.5.0
*
* @param string $template Path to the template. See locate_template().
*/
return apply_filters( "{$type}_template", $template );
}
/**
* Retrieve path of index template in current or parent template.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'index_template'.
*
* @since 3.0.0
*
* @see get_query_template()
*
* @return string Full path to index template file.
*/
function get_index_template() {
return get_query_template('index');
}
/**
* Retrieve path of 404 template in current or parent template.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. '404_template'.
*
* @since 1.5.0
*
* @see get_query_template()
*
* @return string Full path to 404 template file.
*/
function get_404_template() {
return get_query_template('404');
}
/**
* Retrieve path of archive template in current or parent template.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'archive_template'.
*
* @since 1.5.0
*
* @see get_query_template()
*
* @return string Full path to archive template file.
*/
function get_archive_template() {
$post_types = array_filter( (array) get_query_var( 'post_type' ) );
$templates = array();
if ( count( $post_types ) == 1 ) {
$post_type = reset( $post_types );
$templates[] = "archive-{$post_type}.php";
}
$templates[] = 'archive.php';
return get_query_template( 'archive', $templates );
}
/**
* Retrieve path of post type archive template in current or parent template.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'archive_template'.
*
* @since 3.7.0
*
* @see get_archive_template()
*
* @return string Full path to archive template file.
*/
function get_post_type_archive_template() {
$post_type = get_query_var( 'post_type' );
if ( is_array( $post_type ) )
$post_type = reset( $post_type );
$obj = get_post_type_object( $post_type );
if ( ! $obj->has_archive )
return '';
return get_archive_template();
}
/**
* Retrieve path of author template in current or parent template.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'author_template'.
*
* @since 1.5.0
*
* @see get_query_template()
*
* @return string Full path to author template file.
*/
function get_author_template() {
$author = get_queried_object();
$templates = array();
if ( $author instanceof WP_User ) {
$templates[] = "author-{$author->user_nicename}.php";
$templates[] = "author-{$author->ID}.php";
}
$templates[] = 'author.php';
return get_query_template( 'author', $templates );
}
/**
* Retrieve path of category template in current or parent template.
*
* Works by first retrieving the current slug, for example 'category-default.php',
* and then trying category ID, for example 'category-1.php', and will finally fall
* back to category.php template, if those files don't exist.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'category_template'.
*
* @since 1.5.0
*
* @see get_query_template()
*
* @return string Full path to category template file.
*/
function get_category_template() {
$category = get_queried_object();
$templates = array();
if ( ! empty( $category->slug ) ) {
$templates[] = "category-{$category->slug}.php";
$templates[] = "category-{$category->term_id}.php";
}
$templates[] = 'category.php';
return get_query_template( 'category', $templates );
}
/**
* Retrieve path of tag template in current or parent template.
*
* Works by first retrieving the current tag name, for example 'tag-wordpress.php',
* and then trying tag ID, for example 'tag-1.php', and will finally fall back to
* tag.php template, if those files don't exist.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'tag_template'.
*
* @since 2.3.0
*
* @see get_query_template()
*
* @return string Full path to tag template file.
*/
function get_tag_template() {
$tag = get_queried_object();
$templates = array();
if ( ! empty( $tag->slug ) ) {
$templates[] = "tag-{$tag->slug}.php";
$templates[] = "tag-{$tag->term_id}.php";
}
$templates[] = 'tag.php';
return get_query_template( 'tag', $templates );
}
/**
* Retrieve path of taxonomy template in current or parent template.
*
* Retrieves the taxonomy and term, if term is available. The template is
* prepended with 'taxonomy-' and followed by both the taxonomy string and
* the taxonomy string followed by a dash and then followed by the term.
*
* The taxonomy and term template is checked and used first, if it exists.
* Second, just the taxonomy template is checked, and then finally, taxonomy.php
* template is used. If none of the files exist, then it will fall back on to
* index.php.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'taxonomy_template'.
*
* @since 2.5.0
*
* @see get_query_template()
*
* @return string Full path to taxonomy template file.
*/
function get_taxonomy_template() {
$term = get_queried_object();
$templates = array();
if ( ! empty( $term->slug ) ) {
$taxonomy = $term->taxonomy;
$templates[] = "taxonomy-$taxonomy-{$term->slug}.php";
$templates[] = "taxonomy-$taxonomy.php";
}
$templates[] = 'taxonomy.php';
return get_query_template( 'taxonomy', $templates );
}
/**
* Retrieve path of date template in current or parent template.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'date_template'.
*
* @since 1.5.0
*
* @see get_query_template()
*
* @return string Full path to date template file.
*/
function get_date_template() {
return get_query_template('date');
}
/**
* Retrieve path of home template in current or parent template.
*
* This is the template used for the page containing the blog posts.
* Attempts to locate 'home.php' first before falling back to 'index.php'.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'home_template'.
*
* @since 1.5.0
*
* @see get_query_template()
*
* @return string Full path to home template file.
*/
function get_home_template() {
$templates = array( 'home.php', 'index.php' );
return get_query_template( 'home', $templates );
}
/**
* Retrieve path of front-page template in current or parent template.
*
* Looks for 'front-page.php'. The template path is filterable via the
* dynamic {@see '$type_template'} hook, e.g. 'frontpage_template'.
*
* @since 3.0.0
*
* @see get_query_template()
*
* @return string Full path to front page template file.
*/
function get_front_page_template() {
$templates = array('front-page.php');
return get_query_template( 'front_page', $templates );
}
/**
* Retrieve path of page template in current or parent template.
*
* Will first look for the specifically assigned page template.
* Then will search for 'page-{slug}.php', followed by 'page-{id}.php',
* and finally 'page.php'.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'page_template'.
*
* @since 1.5.0
*
* @see get_query_template()
*
* @return string Full path to page template file.
*/
function get_page_template() {
$id = get_queried_object_id();
$template = get_page_template_slug();
$pagename = get_query_var('pagename');
if ( ! $pagename && $id ) {
// If a static page is set as the front page, $pagename will not be set. Retrieve it from the queried object
$post = get_queried_object();
if ( $post )
$pagename = $post->post_name;
}
$templates = array();
if ( $template && 0 === validate_file( $template ) )
$templates[] = $template;
if ( $pagename )
$templates[] = "page-$pagename.php";
if ( $id )
$templates[] = "page-$id.php";
$templates[] = 'page.php';
return get_query_template( 'page', $templates );
}
/**
* Retrieve path of paged template in current or parent template.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'paged_template'.
*
* @since 1.5.0
*
* @see get_query_template()
*
* @return string Full path to paged template file.
*/
function get_paged_template() {
return get_query_template('paged');
}
/**
* Retrieve path of search template in current or parent template.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'search_template'.
*
* @since 1.5.0
*
* @see get_query_template()
*
* @return string Full path to search template file.
*/
function get_search_template() {
return get_query_template('search');
}
/**
* Retrieve path of single template in current or parent template.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'single_template'.
*
* @since 1.5.0
* @since 4.4.0 `single-{post_type}-{post_name}.php` was added to the top of the template hierarchy.
*
* @see get_query_template()
*
* @return string Full path to single template file.
*/
function get_single_template() {
$object = get_queried_object();
$templates = array();
if ( ! empty( $object->post_type ) ) {
$templates[] = "single-{$object->post_type}-{$object->post_name}.php";
$templates[] = "single-{$object->post_type}.php";
}
$templates[] = "single.php";
return get_query_template( 'single', $templates );
}
/**
* Retrieves the path of the singular template in current or parent template.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'singular_template'.
*
* @since 4.3.0
*
* @see get_query_template()
*
* @return string Full path to singular template file
*/
function get_singular_template() {
return get_query_template( 'singular' );
}
/**
* Retrieve path of attachment template in current or parent template.
*
* The attachment path first checks if the first part of the mime type exists.
* The second check is for the second part of the mime type. The last check is
* for both types separated by an underscore. If neither are found then the file
* 'attachment.php' is checked and returned.
*
* Some examples for the 'text/plain' mime type are 'text.php', 'plain.php', and
* finally 'text-plain.php'.
*
* The template path is filterable via the dynamic {@see '$type_template'} hook,
* e.g. 'attachment_template'.
*
* @since 2.0.0
*
* @see get_query_template()
*
* @global array $posts
*
* @return string Full path to attachment template file.
*/
function get_attachment_template() {
$attachment = get_queried_object();
$templates = array();
if ( $attachment ) {
if ( false !== strpos( $attachment->post_mime_type, '/' ) ) {
list( $type, $subtype ) = explode( '/', $attachment->post_mime_type );
} else {
list( $type, $subtype ) = array( $attachment->post_mime_type, '' );
}
if ( ! empty( $subtype ) ) {
$templates[] = "{$type}-{$subtype}.php";
$templates[] = "{$subtype}.php";
}
$templates[] = "{$type}.php";
}
$templates[] = 'attachment.php';
return get_query_template( 'attachment', $templates );
}
/**
* Retrieve the name of the highest priority template file that exists.
*
* Searches in the STYLESHEETPATH before TEMPLATEPATH so that themes which
* inherit from a parent theme can just overload one file.
*
* @since 2.7.0
*
* @param string|array $template_names Template file(s) to search for, in order.
* @param bool $load If true the template file will be loaded if it is found.
* @param bool $require_once Whether to require_once or require. Default true. Has no effect if $load is false.
* @return string The template filename if one is located.
*/
function locate_template($template_names, $load = false, $require_once = true ) {
$located = '';
foreach ( (array) $template_names as $template_name ) {
if ( !$template_name )
continue;
if ( file_exists(STYLESHEETPATH . '/' . $template_name)) {
$located = STYLESHEETPATH . '/' . $template_name;
break;
} elseif ( file_exists(TEMPLATEPATH . '/' . $template_name) ) {
$located = TEMPLATEPATH . '/' . $template_name;
break;
}
}
if ( $load && '' != $located )
load_template( $located, $require_once );
return $located;
}
/**
* Require the template file with WordPress environment.
*
* The globals are set up for the template file to ensure that the WordPress
* environment is available from within the function. The query variables are
* also available.
*
* @since 1.5.0
*
* @global array $posts
* @global WP_Post $post
* @global bool $wp_did_header
* @global WP_Query $wp_query
* @global WP_Rewrite $wp_rewrite
* @global wpdb $wpdb
* @global string $wp_version
* @global WP $wp
* @global int $id
* @global WP_Comment $comment
* @global int $user_ID
*
* @param string $_template_file Path to template file.
* @param bool $require_once Whether to require_once or require. Default true.
*/
function load_template( $_template_file, $require_once = true ) {
global $posts, $post, $wp_did_header, $wp_query, $wp_rewrite, $wpdb, $wp_version, $wp, $id, $comment, $user_ID;
if ( is_array( $wp_query->query_vars ) ) {
extract( $wp_query->query_vars, EXTR_SKIP );
}
if ( isset( $s ) ) {
$s = esc_attr( $s );
}
if ( $require_once ) {
require_once( $_template_file );
} else {
require( $_template_file );
}
}