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theme.php
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1385 lines (1210 loc) · 39.5 KB
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<?php
/**
* Theme, template, and stylesheet functions.
*
* @package WordPress
* @subpackage Template
*/
/**
* Retrieve name of the current stylesheet.
*
* The theme name that the administrator has currently set the front end theme
* as.
*
* For all extensive purposes, the template name and the stylesheet name are
* going to be the same for most cases.
*
* @since 1.5.0
* @uses apply_filters() Calls 'stylesheet' filter on stylesheet name.
*
* @return string Stylesheet name.
*/
function get_stylesheet() {
return apply_filters('stylesheet', get_option('stylesheet'));
}
/**
* Retrieve stylesheet directory path for current theme.
*
* @since 1.5.0
* @uses apply_filters() Calls 'stylesheet_directory' filter on stylesheet directory and theme name.
*
* @return string Path to current theme directory.
*/
function get_stylesheet_directory() {
$stylesheet = get_stylesheet();
$theme_root = get_theme_root( $stylesheet );
$stylesheet_dir = "$theme_root/$stylesheet";
return apply_filters( 'stylesheet_directory', $stylesheet_dir, $stylesheet, $theme_root );
}
/**
* Retrieve stylesheet directory URI.
*
* @since 1.5.0
*
* @return string
*/
function get_stylesheet_directory_uri() {
$stylesheet = get_stylesheet();
$theme_root_uri = get_theme_root_uri( $stylesheet );
$stylesheet_dir_uri = "$theme_root_uri/$stylesheet";
return apply_filters( 'stylesheet_directory_uri', $stylesheet_dir_uri, $stylesheet, $theme_root_uri );
}
/**
* Retrieve URI of current theme stylesheet.
*
* The stylesheet file name is 'style.css' which is appended to {@link
* get_stylesheet_directory_uri() stylesheet directory URI} path.
*
* @since 1.5.0
* @uses apply_filters() Calls 'stylesheet_uri' filter on stylesheet URI path and stylesheet directory URI.
*
* @return string
*/
function get_stylesheet_uri() {
$stylesheet_dir_uri = get_stylesheet_directory_uri();
$stylesheet_uri = $stylesheet_dir_uri . "/style.css";
return apply_filters('stylesheet_uri', $stylesheet_uri, $stylesheet_dir_uri);
}
/**
* Retrieve localized stylesheet URI.
*
* The stylesheet directory for the localized stylesheet files are located, by
* default, in the base theme directory. The name of the locale file will be the
* locale followed by '.css'. If that does not exist, then the text direction
* stylesheet will be checked for existence, for example 'ltr.css'.
*
* The theme may change the location of the stylesheet directory by either using
* the 'stylesheet_directory_uri' filter or the 'locale_stylesheet_uri' filter.
* If you want to change the location of the stylesheet files for the entire
* WordPress workflow, then change the former. If you just have the locale in a
* separate folder, then change the latter.
*
* @since 2.1.0
* @uses apply_filters() Calls 'locale_stylesheet_uri' filter on stylesheet URI path and stylesheet directory URI.
*
* @return string
*/
function get_locale_stylesheet_uri() {
global $wp_locale;
$stylesheet_dir_uri = get_stylesheet_directory_uri();
$dir = get_stylesheet_directory();
$locale = get_locale();
if ( file_exists("$dir/$locale.css") )
$stylesheet_uri = "$stylesheet_dir_uri/$locale.css";
elseif ( !empty($wp_locale->text_direction) && file_exists("$dir/{$wp_locale->text_direction}.css") )
$stylesheet_uri = "$stylesheet_dir_uri/{$wp_locale->text_direction}.css";
else
$stylesheet_uri = '';
return apply_filters('locale_stylesheet_uri', $stylesheet_uri, $stylesheet_dir_uri);
}
/**
* Retrieve name of the current theme.
*
* @since 1.5.0
* @uses apply_filters() Calls 'template' filter on template option.
*
* @return string Template name.
*/
function get_template() {
return apply_filters('template', get_option('template'));
}
/**
* Retrieve current theme directory.
*
* @since 1.5.0
* @uses apply_filters() Calls 'template_directory' filter on template directory path and template name.
*
* @return string Template directory path.
*/
function get_template_directory() {
$template = get_template();
$theme_root = get_theme_root( $template );
$template_dir = "$theme_root/$template";
return apply_filters( 'template_directory', $template_dir, $template, $theme_root );
}
/**
* Retrieve theme directory URI.
*
* @since 1.5.0
* @uses apply_filters() Calls 'template_directory_uri' filter on template directory URI path and template name.
*
* @return string Template directory URI.
*/
function get_template_directory_uri() {
$template = get_template();
$theme_root_uri = get_theme_root_uri( $template );
$template_dir_uri = "$theme_root_uri/$template";
return apply_filters( 'template_directory_uri', $template_dir_uri, $template, $theme_root_uri );
}
/**
* Retrieve theme data from parsed theme file.
*
* The description will have the tags filtered with the following HTML elements
* whitelisted. The <b>'a'</b> element with the <em>href</em> and <em>title</em>
* attributes. The <b>abbr</b> element with the <em>title</em> attribute. The
* <b>acronym<b> element with the <em>title</em> attribute allowed. The
* <b>code</b>, <b>em</b>, and <b>strong</b> elements also allowed.
*
* The style.css file must contain theme name, theme URI, and description. The
* data can also contain author URI, author, template (parent template),
* version, status, and finally tags. Some of these are not used by WordPress
* administration panels, but are used by theme directory web sites which list
* the theme.
*
* @since 1.5.0
*
* @param string $theme_file Theme file path.
* @return array Theme data.
*/
function get_theme_data( $theme_file ) {
$default_headers = array(
'Name' => 'Theme Name',
'URI' => 'Theme URI',
'Description' => 'Description',
'Author' => 'Author',
'AuthorURI' => 'Author URI',
'Version' => 'Version',
'Template' => 'Template',
'Status' => 'Status',
'Tags' => 'Tags'
);
$themes_allowed_tags = array(
'a' => array(
'href' => array(),'title' => array()
),
'abbr' => array(
'title' => array()
),
'acronym' => array(
'title' => array()
),
'code' => array(),
'em' => array(),
'strong' => array()
);
$theme_data = get_file_data( $theme_file, $default_headers, 'theme' );
$theme_data['Name'] = $theme_data['Title'] = wp_kses( $theme_data['Name'], $themes_allowed_tags );
$theme_data['URI'] = esc_url( $theme_data['URI'] );
$theme_data['Description'] = wptexturize( wp_kses( $theme_data['Description'], $themes_allowed_tags ) );
$theme_data['AuthorURI'] = esc_url( $theme_data['AuthorURI'] );
$theme_data['Template'] = wp_kses( $theme_data['Template'], $themes_allowed_tags );
$theme_data['Version'] = wp_kses( $theme_data['Version'], $themes_allowed_tags );
if ( $theme_data['Status'] == '' )
$theme_data['Status'] = 'publish';
else
$theme_data['Status'] = wp_kses( $theme_data['Status'], $themes_allowed_tags );
if ( $theme_data['Tags'] == '' )
$theme_data['Tags'] = array();
else
$theme_data['Tags'] = array_map( 'trim', explode( ',', wp_kses( $theme_data['Tags'], array() ) ) );
if ( $theme_data['Author'] == '' ) {
$theme_data['Author'] = __('Anonymous');
} else {
if ( empty( $theme_data['AuthorURI'] ) ) {
$theme_data['Author'] = wp_kses( $theme_data['Author'], $themes_allowed_tags );
} else {
$theme_data['Author'] = sprintf( '<a href="%1$s" title="%2$s">%3$s</a>', $theme_data['AuthorURI'], __( 'Visit author homepage' ), wp_kses( $theme_data['Author'], $themes_allowed_tags ) );
}
}
return $theme_data;
}
/**
* Retrieve list of themes with theme data in theme directory.
*
* The theme is broken, if it doesn't have a parent theme and is missing either
* style.css and, or index.php. If the theme has a parent theme then it is
* broken, if it is missing style.css; index.php is optional. The broken theme
* list is saved in the {@link $wp_broken_themes} global, which is displayed on
* the theme list in the administration panels.
*
* @since 1.5.0
* @global array $wp_broken_themes Stores the broken themes.
* @global array $wp_themes Stores the working themes.
*
* @return array Theme list with theme data.
*/
function get_themes() {
global $wp_themes, $wp_broken_themes;
if ( isset($wp_themes) )
return $wp_themes;
/* Register the default root as a theme directory */
register_theme_directory( get_theme_root() );
if ( !$theme_files = search_theme_directories() )
return false;
asort( $theme_files );
$wp_themes = array();
foreach ( (array) $theme_files as $theme_file ) {
$theme_root = $theme_file['theme_root'];
$theme_file = $theme_file['theme_file'];
if ( !is_readable("$theme_root/$theme_file") ) {
$wp_broken_themes[$theme_file] = array('Name' => $theme_file, 'Title' => $theme_file, 'Description' => __('File not readable.'));
continue;
}
$theme_data = get_theme_data("$theme_root/$theme_file");
$name = $theme_data['Name'];
$title = $theme_data['Title'];
$description = wptexturize($theme_data['Description']);
$version = $theme_data['Version'];
$author = $theme_data['Author'];
$template = $theme_data['Template'];
$stylesheet = dirname($theme_file);
$screenshot = false;
foreach ( array('png', 'gif', 'jpg', 'jpeg') as $ext ) {
if (file_exists("$theme_root/$stylesheet/screenshot.$ext")) {
$screenshot = "screenshot.$ext";
break;
}
}
if ( empty($name) ) {
$name = dirname($theme_file);
$title = $name;
}
if ( empty($template) ) {
if ( file_exists("$theme_root/$stylesheet/index.php") )
$template = $stylesheet;
else
continue;
}
$template = trim( $template );
if ( !file_exists("$theme_root/$template/index.php") ) {
$parent_dir = dirname(dirname($theme_file));
if ( file_exists("$theme_root/$parent_dir/$template/index.php") ) {
$template = "$parent_dir/$template";
$template_directory = "$theme_root/$template";
} else {
/**
* The parent theme doesn't exist in the current theme's folder or sub folder
* so lets use the theme root for the parent template.
*/
if ( isset($theme_files[$template]) && file_exists( $theme_files[$template]['theme_root'] . "/$template/index.php" ) ) {
$template_directory = $theme_files[$template]['theme_root'] . "/$template";
} else {
$wp_broken_themes[$name] = array('Name' => $name, 'Title' => $title, 'Description' => __('Template is missing.'));
continue;
}
}
} else {
$template_directory = trim( $theme_root . '/' . $template );
}
$stylesheet_files = array();
$template_files = array();
$stylesheet_dir = @ dir("$theme_root/$stylesheet");
if ( $stylesheet_dir ) {
while ( ($file = $stylesheet_dir->read()) !== false ) {
if ( !preg_match('|^\.+$|', $file) ) {
if ( preg_match('|\.css$|', $file) )
$stylesheet_files[] = "$theme_root/$stylesheet/$file";
elseif ( preg_match('|\.php$|', $file) )
$template_files[] = "$theme_root/$stylesheet/$file";
}
}
@ $stylesheet_dir->close();
}
$template_dir = @ dir("$template_directory");
if ( $template_dir ) {
while ( ($file = $template_dir->read()) !== false ) {
if ( preg_match('|^\.+$|', $file) )
continue;
if ( preg_match('|\.php$|', $file) ) {
$template_files[] = "$template_directory/$file";
} elseif ( is_dir("$template_directory/$file") ) {
$template_subdir = @ dir("$template_directory/$file");
if ( !$template_subdir )
continue;
while ( ($subfile = $template_subdir->read()) !== false ) {
if ( preg_match('|^\.+$|', $subfile) )
continue;
if ( preg_match('|\.php$|', $subfile) )
$template_files[] = "$template_directory/$file/$subfile";
}
@ $template_subdir->close();
}
}
@ $template_dir->close();
}
//Make unique and remove duplicates when stylesheet and template are the same i.e. most themes
$template_files = array_unique($template_files);
$stylesheet_files = array_unique($stylesheet_files);
$template_dir = dirname($template_files[0]);
$stylesheet_dir = dirname($stylesheet_files[0]);
if ( empty($template_dir) )
$template_dir = '/';
if ( empty($stylesheet_dir) )
$stylesheet_dir = '/';
// Check for theme name collision. This occurs if a theme is copied to
// a new theme directory and the theme header is not updated. Whichever
// theme is first keeps the name. Subsequent themes get a suffix applied.
// The Default and Classic themes always trump their pretenders.
if ( isset($wp_themes[$name]) ) {
if ( ('WordPress Default' == $name || 'WordPress Classic' == $name) &&
('default' == $stylesheet || 'classic' == $stylesheet) ) {
// If another theme has claimed to be one of our default themes, move
// them aside.
$suffix = $wp_themes[$name]['Stylesheet'];
$new_name = "$name/$suffix";
$wp_themes[$new_name] = $wp_themes[$name];
$wp_themes[$new_name]['Name'] = $new_name;
} else {
$name = "$name/$stylesheet";
}
}
$theme_roots[$stylesheet] = str_replace( WP_CONTENT_DIR, '', $theme_root );
$wp_themes[$name] = array( 'Name' => $name, 'Title' => $title, 'Description' => $description, 'Author' => $author, 'Version' => $version, 'Template' => $template, 'Stylesheet' => $stylesheet, 'Template Files' => $template_files, 'Stylesheet Files' => $stylesheet_files, 'Template Dir' => $template_dir, 'Stylesheet Dir' => $stylesheet_dir, 'Status' => $theme_data['Status'], 'Screenshot' => $screenshot, 'Tags' => $theme_data['Tags'], 'Theme Root' => $theme_root, 'Theme Root URI' => str_replace( WP_CONTENT_DIR, content_url(), $theme_root ) );
}
unset($theme_files);
/* Store theme roots in the DB */
if ( get_site_transient( 'theme_roots' ) != $theme_roots )
set_site_transient( 'theme_roots', $theme_roots, 7200 ); // cache for two hours
unset($theme_roots);
/* Resolve theme dependencies. */
$theme_names = array_keys( $wp_themes );
foreach ( (array) $theme_names as $theme_name ) {
$wp_themes[$theme_name]['Parent Theme'] = '';
if ( $wp_themes[$theme_name]['Stylesheet'] != $wp_themes[$theme_name]['Template'] ) {
foreach ( (array) $theme_names as $parent_theme_name ) {
if ( ($wp_themes[$parent_theme_name]['Stylesheet'] == $wp_themes[$parent_theme_name]['Template']) && ($wp_themes[$parent_theme_name]['Template'] == $wp_themes[$theme_name]['Template']) ) {
$wp_themes[$theme_name]['Parent Theme'] = $wp_themes[$parent_theme_name]['Name'];
break;
}
}
}
}
return $wp_themes;
}
/**
* Retrieve theme roots.
*
* @since 2.9.0
*
* @return array Theme roots
*/
function get_theme_roots() {
$theme_roots = get_site_transient( 'theme_roots' );
if ( false === $theme_roots ) {
get_themes();
$theme_roots = get_site_transient( 'theme_roots' ); // this is set in get_theme()
}
return $theme_roots;
}
/**
* Retrieve theme data.
*
* @since 1.5.0
*
* @param string $theme Theme name.
* @return array|null Null, if theme name does not exist. Theme data, if exists.
*/
function get_theme($theme) {
$themes = get_themes();
if ( array_key_exists($theme, $themes) )
return $themes[$theme];
return null;
}
/**
* Retrieve current theme display name.
*
* If the 'current_theme' option has already been set, then it will be returned
* instead. If it is not set, then each theme will be iterated over until both
* the current stylesheet and current template name.
*
* @since 1.5.0
*
* @return string
*/
function get_current_theme() {
if ( $theme = get_option('current_theme') )
return $theme;
$themes = get_themes();
$theme_names = array_keys($themes);
$current_template = get_option('template');
$current_stylesheet = get_option('stylesheet');
$current_theme = 'WordPress Default';
if ( $themes ) {
foreach ( (array) $theme_names as $theme_name ) {
if ( $themes[$theme_name]['Stylesheet'] == $current_stylesheet &&
$themes[$theme_name]['Template'] == $current_template ) {
$current_theme = $themes[$theme_name]['Name'];
break;
}
}
}
update_option('current_theme', $current_theme);
return $current_theme;
}
/**
* Register a directory that contains themes.
*
* @since 2.9.0
*
* @param string $directory Either the full filesystem path to a theme folder or a folder within WP_CONTENT_DIR
* @return bool
*/
function register_theme_directory( $directory) {
global $wp_theme_directories;
/* If this folder does not exist, return and do not register */
if ( !file_exists( $directory ) )
/* Try prepending as the theme directory could be relative to the content directory */
$registered_directory = WP_CONTENT_DIR . '/' . $directory;
else
$registered_directory = $directory;
/* If this folder does not exist, return and do not register */
if ( !file_exists( $registered_directory ) )
return false;
$wp_theme_directories[] = $registered_directory;
return true;
}
/**
* Search all registered theme directories for complete and valid themes.
*
* @since 2.9.0
*
* @return array Valid themes found
*/
function search_theme_directories() {
global $wp_theme_directories, $wp_broken_themes;
if ( empty( $wp_theme_directories ) )
return false;
$theme_files = array();
$wp_broken_themes = array();
/* Loop the registered theme directories and extract all themes */
foreach ( (array) $wp_theme_directories as $theme_root ) {
$theme_loc = $theme_root;
/* We don't want to replace all forward slashes, see Trac #4541 */
if ( '/' != WP_CONTENT_DIR )
$theme_loc = str_replace(WP_CONTENT_DIR, '', $theme_root);
/* Files in the root of the current theme directory and one subdir down */
$themes_dir = @ opendir($theme_root);
if ( !$themes_dir )
return false;
while ( ($theme_dir = readdir($themes_dir)) !== false ) {
if ( is_dir($theme_root . '/' . $theme_dir) && is_readable($theme_root . '/' . $theme_dir) ) {
if ( $theme_dir{0} == '.' || $theme_dir == 'CVS' )
continue;
$stylish_dir = @opendir($theme_root . '/' . $theme_dir);
$found_stylesheet = false;
while ( ($theme_file = readdir($stylish_dir)) !== false ) {
if ( $theme_file == 'style.css' ) {
$theme_files[$theme_dir] = array( 'theme_file' => $theme_dir . '/' . $theme_file, 'theme_root' => $theme_root );
$found_stylesheet = true;
break;
}
}
@closedir($stylish_dir);
if ( !$found_stylesheet ) { // look for themes in that dir
$subdir = "$theme_root/$theme_dir";
$subdir_name = $theme_dir;
$theme_subdirs = @opendir( $subdir );
$found_subdir_themes = false;
while ( ($theme_subdir = readdir($theme_subdirs)) !== false ) {
if ( is_dir( $subdir . '/' . $theme_subdir) && is_readable($subdir . '/' . $theme_subdir) ) {
if ( $theme_subdir{0} == '.' || $theme_subdir == 'CVS' )
continue;
$stylish_dir = @opendir($subdir . '/' . $theme_subdir);
$found_stylesheet = false;
while ( ($theme_file = readdir($stylish_dir)) !== false ) {
if ( $theme_file == 'style.css' ) {
$theme_files["$theme_dir/$theme_subdir"] = array( 'theme_file' => $subdir_name . '/' . $theme_subdir . '/' . $theme_file, 'theme_root' => $theme_root );
$found_stylesheet = true;
$found_subdir_themes = true;
break;
}
}
@closedir($stylish_dir);
}
}
@closedir($theme_subdir);
if ( !$found_subdir_themes )
$wp_broken_themes[$theme_dir] = array('Name' => $theme_dir, 'Title' => $theme_dir, 'Description' => __('Stylesheet is missing.'));
}
}
}
if ( is_dir( $theme_dir ) )
@closedir( $theme_dir );
}
return $theme_files;
}
/**
* Retrieve path to themes directory.
*
* Does not have trailing slash.
*
* @since 1.5.0
* @param $stylesheet_or_template The stylesheet or template name of the theme
* @uses apply_filters() Calls 'theme_root' filter on path.
*
* @return string Theme path.
*/
function get_theme_root( $stylesheet_or_template = false ) {
if ($stylesheet_or_template) {
$theme_roots = get_theme_roots();
if ( $theme_roots[$stylesheet_or_template] )
$theme_root = WP_CONTENT_DIR . $theme_roots[$stylesheet_or_template];
else
$theme_root = WP_CONTENT_DIR . '/themes';
} else {
$theme_root = WP_CONTENT_DIR . '/themes';
}
return apply_filters( 'theme_root', $theme_root );
}
/**
* Retrieve URI for themes directory.
*
* Does not have trailing slash.
*
* @since 1.5.0
* @param $stylesheet_or_template The stylesheet or template name of the theme
*
* @return string Themes URI.
*/
function get_theme_root_uri( $stylesheet_or_template = false ) {
$theme_roots = get_theme_roots();
if ( $theme_roots[$stylesheet_or_template] )
$theme_root_uri = content_url( $theme_roots[$stylesheet_or_template] );
else
$theme_root_uri = content_url( 'themes' );
return apply_filters( 'theme_root_uri', $theme_root_uri, get_option('siteurl'), $stylesheet_or_template );
}
/**
* Retrieve path to file without the use of extension.
*
* Used to quickly retrieve the path of file without including the file
* extension. It will also check the parent template, if the file exists, with
* the use of {@link locate_template()}. Allows for more generic file location
* without the use of the other get_*_template() functions.
*
* Can be used with include() or require() to retrieve path.
* <code>
* if( '' != get_query_template( '404' ) )
* include( get_query_template( '404' ) );
* </code>
* or the same can be accomplished with
* <code>
* if( '' != get_404_template() )
* include( get_404_template() );
* </code>
*
* @since 1.5.0
*
* @param string $type Filename without extension.
* @return string Full path to file.
*/
function get_query_template($type) {
$type = preg_replace( '|[^a-z0-9-]+|', '', $type );
return apply_filters("{$type}_template", locate_template(array("{$type}.php")));
}
/**
* Retrieve path of 404 template in current or parent template.
*
* @since 1.5.0
*
* @return string
*/
function get_404_template() {
return get_query_template('404');
}
/**
* Retrieve path of archive template in current or parent template.
*
* @since 1.5.0
*
* @return string
*/
function get_archive_template() {
return get_query_template('archive');
}
/**
* Retrieve path of author template in current or parent template.
*
* @since 1.5.0
*
* @return string
*/
function get_author_template() {
return get_query_template('author');
}
/**
* 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 fallback to category.php
* template, if those files don't exist.
*
* @since 1.5.0
* @uses apply_filters() Calls 'category_template' on file path of category template.
*
* @return string
*/
function get_category_template() {
$cat_ID = absint( get_query_var('cat') );
$category = get_category( $cat_ID );
$templates = array();
if ( !is_wp_error($category) )
$templates[] = "category-{$category->slug}.php";
$templates[] = "category-$cat_ID.php";
$templates[] = "category.php";
$template = locate_template($templates);
return apply_filters('category_template', $template);
}
/**
* 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 fallback to tag.php
* template, if those files don't exist.
*
* @since 2.3.0
* @uses apply_filters() Calls 'tag_template' on file path of tag template.
*
* @return string
*/
function get_tag_template() {
$tag_id = absint( get_query_var('tag_id') );
$tag_name = get_query_var('tag');
$templates = array();
if ( $tag_name )
$templates[] = "tag-$tag_name.php";
if ( $tag_id )
$templates[] = "tag-$tag_id.php";
$templates[] = "tag.php";
$template = locate_template($templates);
return apply_filters('tag_template', $template);
}
/**
* 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.
*
* @since unknown (2.6.0 most likely)
* @uses apply_filters() Calls 'taxonomy_template' filter on found path.
*
* @return string
*/
function get_taxonomy_template() {
$taxonomy = get_query_var('taxonomy');
$term = get_query_var('term');
$templates = array();
if ( $taxonomy && $term )
$templates[] = "taxonomy-$taxonomy-$term.php";
if ( $taxonomy )
$templates[] = "taxonomy-$taxonomy.php";
$templates[] = "taxonomy.php";
$template = locate_template($templates);
return apply_filters('taxonomy_template', $template);
}
/**
* Retrieve path of date template in current or parent template.
*
* @since 1.5.0
*
* @return string
*/
function get_date_template() {
return get_query_template('date');
}
/**
* Retrieve path of home template in current or parent template.
*
* Attempts to locate 'home.php' first before falling back to 'index.php'.
*
* @since 1.5.0
* @uses apply_filters() Calls 'home_template' on file path of home template.
*
* @return string
*/
function get_home_template() {
$template = locate_template(array('home.php', 'index.php'));
return apply_filters('home_template', $template);
}
/**
* Retrieve path of page template in current or parent template.
*
* Will first look for the specifically assigned page template
* The will search for 'page-{slug}.php' followed by 'page-id.php'
* and finally 'page.php'
*
* @since 1.5.0
*
* @return string
*/
function get_page_template() {
global $wp_query;
$id = (int) $wp_query->post->ID;
$template = get_post_meta($id, '_wp_page_template', true);
$pagename = get_query_var('pagename');
if ( 'default' == $template )
$template = '';
$templates = array();
if ( !empty($template) && !validate_file($template) )
$templates[] = $template;
if ( $pagename )
$templates[] = "page-$pagename.php";
if ( $id )
$templates[] = "page-$id.php";
$templates[] = "page.php";
return apply_filters('page_template', locate_template($templates));
}
/**
* Retrieve path of paged template in current or parent template.
*
* @since 1.5.0
*
* @return string
*/
function get_paged_template() {
return get_query_template('paged');
}
/**
* Retrieve path of search template in current or parent template.
*
* @since 1.5.0
*
* @return string
*/
function get_search_template() {
return get_query_template('search');
}
/**
* Retrieve path of single template in current or parent template.
*
* @since 1.5.0
*
* @return string
*/
function get_single_template() {
return get_query_template('single');
}
/**
* 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'.
*
* @since 2.0.0
*
* @return string
*/
function get_attachment_template() {
global $posts;
$type = explode('/', $posts[0]->post_mime_type);
if ( $template = get_query_template($type[0]) )
return $template;
elseif ( $template = get_query_template($type[1]) )
return $template;
elseif ( $template = get_query_template("$type[0]_$type[1]") )
return $template;
else
return get_query_template('attachment');
}
/**
* Retrieve path of comment popup template in current or parent template.
*
* Checks for comment popup template in current template, if it exists or in the
* parent template. If it doesn't exist, then it retrieves the comment-popup.php
* file from the default theme. The default theme must then exist for it to
* work.
*
* @since 1.5.0
* @uses apply_filters() Calls 'comments_popup_template' filter on path.
*
* @return string
*/
function get_comments_popup_template() {
$template = locate_template(array("comments-popup.php"));
if ('' == $template)
$template = get_theme_root() . '/default/comments-popup.php';
return apply_filters('comments_popup_template', $template);
}
/**
* 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 array $template_names Array of template files to search for in priority order.
* @param bool $load If true the template file will be loaded if it is found.
* @return string The template filename if one is located.
*/
function locate_template($template_names, $load = false) {
if (!is_array($template_names))
return '';
$located = '';
foreach($template_names as $template_name) {
if ( file_exists(STYLESHEETPATH . '/' . $template_name)) {
$located = STYLESHEETPATH . '/' . $template_name;
break;
} else if ( file_exists(TEMPLATEPATH . '/' . $template_name) ) {
$located = TEMPLATEPATH . '/' . $template_name;
break;
}
}
if ($load && '' != $located)
load_template($located);
return $located;
}
/**
* Require once 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
*
* @param string $_template_file Path to template file.
*/
function load_template($_template_file) {
global $posts, $post, $wp_did_header, $wp_did_template_redirect, $wp_query, $wp_rewrite, $wpdb, $wp_version, $wp, $id, $comment, $user_ID;
if ( is_array($wp_query->query_vars) )
extract($wp_query->query_vars, EXTR_SKIP);
require_once($_template_file);
}
/**
* Display localized stylesheet link element.