WordPress/wp-admin/includes/theme.php

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<?php
/**
* WordPress Theme Administration API
*
* @package WordPress
* @subpackage Administration
*/
/**
* Remove a theme
*
* @since 2.8.0
*
* @param string $stylesheet Stylesheet of the theme to delete
* @param string $redirect Redirect to page when complete.
* @return mixed
*/
function delete_theme($stylesheet, $redirect = '') {
global $wp_filesystem;
if ( empty($stylesheet) )
return false;
ob_start();
if ( empty( $redirect ) )
$redirect = wp_nonce_url('themes.php?action=delete&stylesheet=' . urlencode( $stylesheet ), 'delete-theme_' . $stylesheet);
if ( false === ($credentials = request_filesystem_credentials($redirect)) ) {
$data = ob_get_contents();
ob_end_clean();
if ( ! empty($data) ){
include_once( ABSPATH . 'wp-admin/admin-header.php');
echo $data;
include( ABSPATH . 'wp-admin/admin-footer.php');
exit;
}
return;
}
if ( ! WP_Filesystem($credentials) ) {
request_filesystem_credentials($redirect, '', true); // Failed to connect, Error and request again
$data = ob_get_contents();
ob_end_clean();
if ( ! empty($data) ) {
include_once( ABSPATH . 'wp-admin/admin-header.php');
echo $data;
include( ABSPATH . 'wp-admin/admin-footer.php');
exit;
}
return;
}
if ( ! is_object($wp_filesystem) )
return new WP_Error('fs_unavailable', __('Could not access filesystem.'));
if ( is_wp_error($wp_filesystem->errors) && $wp_filesystem->errors->get_error_code() )
return new WP_Error('fs_error', __('Filesystem error.'), $wp_filesystem->errors);
// Get the base plugin folder.
$themes_dir = $wp_filesystem->wp_themes_dir();
if ( empty( $themes_dir ) ) {
return new WP_Error( 'fs_no_themes_dir', __( 'Unable to locate WordPress theme directory.' ) );
}
$themes_dir = trailingslashit( $themes_dir );
$theme_dir = trailingslashit( $themes_dir . $stylesheet );
$deleted = $wp_filesystem->delete( $theme_dir, true );
if ( ! $deleted ) {
return new WP_Error( 'could_not_remove_theme', sprintf( __( 'Could not fully remove the theme %s.' ), $stylesheet ) );
}
$translations_dir = $wp_filesystem->wp_lang_dir();
$translations_dir = trailingslashit( $translations_dir );
$theme_translations = wp_get_installed_translations( 'themes' );
// Remove language files, silently.
if ( ! empty( $theme_translations[ $stylesheet ] ) ) {
$translations = $theme_translations[ $stylesheet ];
foreach ( $translations as $translation => $data ) {
$wp_filesystem->delete( WP_LANG_DIR . '/themes/' . $stylesheet . '-' . $translation . '.po' );
$wp_filesystem->delete( WP_LANG_DIR . '/themes/' . $stylesheet . '-' . $translation . '.mo' );
}
}
// Force refresh of theme update information.
delete_site_transient( 'update_themes' );
return true;
}
/**
* Get the Page Templates available in this theme
*
* @since 1.5.0
*
* @param WP_Post|null $post Optional. The post being edited, provided for context.
* @return array Key is the template name, value is the filename of the template
*/
function get_page_templates( $post = null ) {
return array_flip( wp_get_theme()->get_page_templates( $post ) );
}
/**
* Tidies a filename for url display by the theme editor.
*
* @since 2.9.0
* @access private
*
* @param string $fullpath Full path to the theme file
* @param string $containingfolder Path of the theme parent folder
* @return string
*/
function _get_template_edit_filename($fullpath, $containingfolder) {
return str_replace(dirname(dirname( $containingfolder )) , '', $fullpath);
}
/**
* Check if there is an update for a theme available.
*
* Will display link, if there is an update available.
*
* @since 2.7.0
* @see get_theme_update_available()
*
* @param object $theme Theme data object.
*/
function theme_update_available( $theme ) {
echo get_theme_update_available( $theme );
}
/**
* Retrieve the update link if there is a theme update available.
*
* Will return a link if there is an update available.
*
* @since 3.8.0
*
* @param WP_Theme $theme WP_Theme object.
* @return false|string HTML for the update link, or false if invalid info was passed.
*/
function get_theme_update_available( $theme ) {
static $themes_update;
if ( !current_user_can('update_themes' ) )
return false;
if ( !isset($themes_update) )
$themes_update = get_site_transient('update_themes');
Introduce WP_Theme, wp_get_themes(), and wp_get_theme() to replace get_themes(), get_theme(), get_theme_data(), current_theme_info(), and others. * Getters and Helpers: Introduces a series of methods to allow for easy generation of headers for display, and other theme metadata, including page templates. * Screenshots: Handles support for multiple screenshots. (see # Additional screenshots must be PNG and start with screenshot-2.png, and be sequential to be counted. see #19816. * Error Handling: Broken themes have a WP_Error object attached to them. * Caching: Introduces a wp_cache_themes_persistently filter (also in [20020]) to enable persistent caching of all filesystem and sanitization operations normally handled by WP_Theme (and formerly get_file_data() and get_themes()). Themes are cached individually and across five different cache keys for different data pieces. * Compatibility: A WP_Theme object is backwards compatible with a theme's array formerly returned by get_themes() and get_theme(), and an stdClass object formerly returned by current_theme_info(). * i18n/L10n: Theme headers are now localizable with proper Text Domain and Domain Path headers, like plugins. (Language packs may remove the requirement for headers.) For page templates, see #6007 (not fixed yet, but will be easy now). For headers, fixes #15858. * PHP and CSS files: New methods that fetch a list of theme files (for the theme editor) only on demand, rather than only loading them into memory. fixes #11214. Functions deprecated: * get_themes(), get_allowed_themes() and get_broken_themes() -- use wp_get_themes() * get_theme() and current_theme_info() -- use wp_get_theme() * get_site_allowed_themes() -- use WP_Theme::get_allowed_on_network() * wpmu_get_blog_allowedthemes() -- use WP_theme::get_allowed_on_site() see also [20016], [20018], [20019], [20020], [20021], [20022], [20025], [20026], [20027]. also fixes #19244. see #20103. git-svn-id: http://svn.automattic.com/wordpress/trunk@20029 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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if ( ! is_a( $theme, 'WP_Theme' ) )
return false;
Introduce WP_Theme, wp_get_themes(), and wp_get_theme() to replace get_themes(), get_theme(), get_theme_data(), current_theme_info(), and others. * Getters and Helpers: Introduces a series of methods to allow for easy generation of headers for display, and other theme metadata, including page templates. * Screenshots: Handles support for multiple screenshots. (see # Additional screenshots must be PNG and start with screenshot-2.png, and be sequential to be counted. see #19816. * Error Handling: Broken themes have a WP_Error object attached to them. * Caching: Introduces a wp_cache_themes_persistently filter (also in [20020]) to enable persistent caching of all filesystem and sanitization operations normally handled by WP_Theme (and formerly get_file_data() and get_themes()). Themes are cached individually and across five different cache keys for different data pieces. * Compatibility: A WP_Theme object is backwards compatible with a theme's array formerly returned by get_themes() and get_theme(), and an stdClass object formerly returned by current_theme_info(). * i18n/L10n: Theme headers are now localizable with proper Text Domain and Domain Path headers, like plugins. (Language packs may remove the requirement for headers.) For page templates, see #6007 (not fixed yet, but will be easy now). For headers, fixes #15858. * PHP and CSS files: New methods that fetch a list of theme files (for the theme editor) only on demand, rather than only loading them into memory. fixes #11214. Functions deprecated: * get_themes(), get_allowed_themes() and get_broken_themes() -- use wp_get_themes() * get_theme() and current_theme_info() -- use wp_get_theme() * get_site_allowed_themes() -- use WP_Theme::get_allowed_on_network() * wpmu_get_blog_allowedthemes() -- use WP_theme::get_allowed_on_site() see also [20016], [20018], [20019], [20020], [20021], [20022], [20025], [20026], [20027]. also fixes #19244. see #20103. git-svn-id: http://svn.automattic.com/wordpress/trunk@20029 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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$stylesheet = $theme->get_stylesheet();
$html = '';
if ( isset($themes_update->response[ $stylesheet ]) ) {
$update = $themes_update->response[ $stylesheet ];
$theme_name = $theme->display('Name');
$details_url = add_query_arg(array('TB_iframe' => 'true', 'width' => 1024, 'height' => 800), $update['url']); //Theme browser inside WP? replace this, Also, theme preview JS will override this on the available list.
$update_url = wp_nonce_url( admin_url( 'update.php?action=upgrade-theme&amp;theme=' . urlencode( $stylesheet ) ), 'upgrade-theme_' . $stylesheet );
$update_onclick = 'onclick="if ( confirm(\'' . esc_js( __("Updating this theme will lose any customizations you have made. 'Cancel' to stop, 'OK' to update.") ) . '\') ) {return true;}return false;"';
if ( !is_multisite() ) {
if ( ! current_user_can('update_themes') ) {
$html = sprintf( '<p><strong>' . __( 'There is a new version of %1$s available. <a href="%2$s" class="thickbox" title="%3$s">View version %4$s details</a>.' ) . '</strong></p>',
$theme_name, esc_url( $details_url ), esc_attr( $theme['Name'] ), $update['new_version'] );
} else if ( empty( $update['package'] ) ) {
$html = sprintf( '<p><strong>' . __( 'There is a new version of %1$s available. <a href="%2$s" class="thickbox" title="%3$s">View version %4$s details</a>. <em>Automatic update is unavailable for this theme.</em>' ) . '</strong></p>',
$theme_name, esc_url( $details_url ), esc_attr( $theme['Name'] ), $update['new_version'] );
} else {
$html = sprintf( '<p><strong>' . __( 'There is a new version of %1$s available. <a href="%2$s" class="thickbox" title="%3$s">View version %4$s details</a> or <a href="%5$s">update now</a>.' ) . '</strong></p>',
$theme_name, esc_url( $details_url ), esc_attr( $theme['Name'] ), $update['new_version'], $update_url, $update_onclick );
}
}
}
return $html;
}
/**
* Retrieve list of WordPress theme features (aka theme tags)
*
* @since 3.1.0
*
* @param bool $api Optional. Whether try to fetch tags from the WP.org API. Defaults to true.
* @return array Array of features keyed by category with translations keyed by slug.
*/
function get_theme_feature_list( $api = true ) {
// Hard-coded list is used if api not accessible.
$features = array(
__( 'Colors' ) => array(
'black' => __( 'Black' ),
'blue' => __( 'Blue' ),
'brown' => __( 'Brown' ),
'gray' => __( 'Gray' ),
'green' => __( 'Green' ),
'orange' => __( 'Orange' ),
'pink' => __( 'Pink' ),
'purple' => __( 'Purple' ),
'red' => __( 'Red' ),
'silver' => __( 'Silver' ),
'tan' => __( 'Tan' ),
'white' => __( 'White' ),
'yellow' => __( 'Yellow' ),
'dark' => __( 'Dark' ),
'light' => __( 'Light' ),
),
__( 'Layout' ) => array(
'fixed-layout' => __( 'Fixed Layout' ),
'fluid-layout' => __( 'Fluid Layout' ),
'responsive-layout' => __( 'Responsive Layout' ),
'one-column' => __( 'One Column' ),
'two-columns' => __( 'Two Columns' ),
'three-columns' => __( 'Three Columns' ),
'four-columns' => __( 'Four Columns' ),
'left-sidebar' => __( 'Left Sidebar' ),
'right-sidebar' => __( 'Right Sidebar' ),
),
__( 'Features' ) => array(
'accessibility-ready' => __( 'Accessibility Ready' ),
'blavatar' => __( 'Blavatar' ),
'buddypress' => __( 'BuddyPress' ),
'custom-background' => __( 'Custom Background' ),
'custom-colors' => __( 'Custom Colors' ),
'custom-header' => __( 'Custom Header' ),
'custom-menu' => __( 'Custom Menu' ),
'editor-style' => __( 'Editor Style' ),
'featured-image-header' => __( 'Featured Image Header' ),
'featured-images' => __( 'Featured Images' ),
'flexible-header' => __( 'Flexible Header' ),
'front-page-post-form' => __( 'Front Page Posting' ),
'full-width-template' => __( 'Full Width Template' ),
'microformats' => __( 'Microformats' ),
'post-formats' => __( 'Post Formats' ),
'rtl-language-support' => __( 'RTL Language Support' ),
'sticky-post' => __( 'Sticky Post' ),
'theme-options' => __( 'Theme Options' ),
'threaded-comments' => __( 'Threaded Comments' ),
'translation-ready' => __( 'Translation Ready' ),
),
__( 'Subject' ) => array(
'holiday' => __( 'Holiday' ),
'photoblogging' => __( 'Photoblogging' ),
'seasonal' => __( 'Seasonal' ),
)
);
if ( ! $api || ! current_user_can( 'install_themes' ) )
return $features;
if ( !$feature_list = get_site_transient( 'wporg_theme_feature_list' ) )
set_site_transient( 'wporg_theme_feature_list', array(), 3 * HOUR_IN_SECONDS );
if ( !$feature_list ) {
$feature_list = themes_api( 'feature_list', array() );
if ( is_wp_error( $feature_list ) )
return $features;
}
if ( !$feature_list )
return $features;
set_site_transient( 'wporg_theme_feature_list', $feature_list, 3 * HOUR_IN_SECONDS );
$category_translations = array(
'Colors' => __( 'Colors' ),
'Layout' => __( 'Layout' ),
'Features' => __( 'Features' ),
'Subject' => __( 'Subject' )
);
// Loop over the wporg canonical list and apply translations
$wporg_features = array();
foreach ( (array) $feature_list as $feature_category => $feature_items ) {
if ( isset($category_translations[$feature_category]) )
$feature_category = $category_translations[$feature_category];
$wporg_features[$feature_category] = array();
foreach ( $feature_items as $feature ) {
if ( isset($features[$feature_category][$feature]) )
$wporg_features[$feature_category][$feature] = $features[$feature_category][$feature];
else
$wporg_features[$feature_category][$feature] = $feature;
}
}
return $wporg_features;
}
/**
* Retrieve theme installer pages from WordPress Themes API.
*
* It is possible for a theme to override the Themes API result with three
* filters. Assume this is for themes, which can extend on the Theme Info to
* offer more choices. This is very powerful and must be used with care, when
* overriding the filters.
*
* The first filter, 'themes_api_args', is for the args and gives the action as
* the second parameter. The hook for 'themes_api_args' must ensure that an
* object is returned.
*
* The second filter, 'themes_api', is the result that would be returned.
*
* @since 2.8.0
*
* @param string $action The requested action. Likely values are 'theme_information',
* 'feature_list', or 'query_themes'.
* @param array|object $args Optional. Arguments to serialize for the Theme Info API.
* @return mixed
*/
function themes_api( $action, $args = null ) {
if ( is_array($args) )
$args = (object)$args;
if ( !isset($args->per_page) )
$args->per_page = 24;
/**
* Filter arguments used to query for installer pages from the WordPress.org Themes API.
*
* Important: An object MUST be returned to this filter.
*
* @since 2.8.0
*
* @param object $args Arguments used to query for installer pages from the WordPress.org Themes API.
* @param string $action Requested action. Likely values are 'theme_information',
* 'feature_list', or 'query_themes'.
*/
$args = apply_filters( 'themes_api_args', $args, $action );
/**
* Filter whether to override the WordPress.org Themes API.
*
* Returning a value of true to this filter allows a theme to completely
* override the built-in WordPress.org API.
*
* @since 2.8.0
*
* @param bool $bool Whether to override the WordPress.org Themes API. Default false.
* @param string $action Requested action. Likely values are 'theme_information',
* 'feature_list', or 'query_themes'.
* @param object $args Arguments used to query for installer pages from the Themes API.
*/
$res = apply_filters( 'themes_api', false, $action, $args );
if ( ! $res ) {
$url = $http_url = 'http://api.wordpress.org/themes/info/1.0/';
if ( $ssl = wp_http_supports( array( 'ssl' ) ) )
$url = set_url_scheme( $url, 'https' );
$args = array(
'body' => array(
'action' => $action,
'request' => serialize( $args )
)
);
$request = wp_remote_post( $url, $args );
if ( $ssl && is_wp_error( $request ) ) {
if ( ! defined( 'DOING_AJAX' ) || ! DOING_AJAX ) {
trigger_error( __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server&#8217;s configuration. If you continue to have problems, please try the <a href="https://wordpress.org/support/">support forums</a>.' ) . ' ' . __( '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)' ), headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE );
}
$request = wp_remote_post( $http_url, $args );
}
if ( is_wp_error($request) ) {
$res = new WP_Error('themes_api_failed', __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server&#8217;s configuration. If you continue to have problems, please try the <a href="https://wordpress.org/support/">support forums</a>.' ), $request->get_error_message() );
} else {
$res = maybe_unserialize( wp_remote_retrieve_body( $request ) );
if ( ! is_object( $res ) && ! is_array( $res ) )
$res = new WP_Error('themes_api_failed', __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server&#8217;s configuration. If you continue to have problems, please try the <a href="https://wordpress.org/support/">support forums</a>.' ), wp_remote_retrieve_body( $request ) );
}
}
/**
* Filter the returned WordPress.org Themes API response.
*
* @since 2.8.0
*
* @param array|object $res WordPress.org Themes API response.
* @param string $action Requested action. Likely values are 'theme_information',
* 'feature_list', or 'query_themes'.
* @param object $args Arguments used to query for installer pages from the WordPress.org Themes API.
*/
return apply_filters( 'themes_api_result', $res, $action, $args );
}
/**
* Prepare themes for JavaScript.
*
* @since 3.8.0
*
* @param array $themes Optional. Array of WP_Theme objects to prepare.
* Defaults to all allowed themes.
*
* @return array An associative array of theme data, sorted by name.
*/
function wp_prepare_themes_for_js( $themes = null ) {
$current_theme = get_stylesheet();
No-JavaScript and no-Customizer support for the new Themes screen. JavaScript is rarely disabled, but graceful degradation is still important. For example, syntax errors can occur, usually with major WP updates that overhaul entire experiences and update external libraries combined with themes or plugins doing weird or old things. If this error is due to their current theme, a user needs to be able to access the themes screen to switch away from the theme. A more subtle issue could make things painful to diagnose. This commit renders the grid in PHP (the template is duplicated, but it lightweight, fairly mundane, and easy to sync). On Backbone render, the grid is then re-rendered from JavaScript so searches can occur. Customize and Live Preview is disabled if JS fails to kick in. If JS is disabled, old-school "Preview" links are displayed. No-Customizer support: The customizer is only supported when the browser supports postMessage (IE8+), and if the frontend is a different domain, CORS (IE10+). We use the .hide-if-no-customize class for this. Pre-customize "Preview" links should use .hide-if-customize. The .load-customize class should be used to declare a link that opens the customizer. This enables customize-loader.js to intercept this link and load the customizer on top of the current window, making for a smoother experience. fixes #25964. Built from https://develop.svn.wordpress.org/trunk@26726 git-svn-id: http://core.svn.wordpress.org/trunk@26615 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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// Make sure the current theme is listed first.
$prepared_themes = array( $current_theme => array() );
if ( null === $themes ) {
$themes = wp_get_themes( array( 'allowed' => true ) );
if ( ! isset( $themes[ $current_theme ] ) ) {
$themes[ $current_theme ] = wp_get_theme();
}
}
$updates = array();
if ( current_user_can( 'update_themes' ) ) {
$updates_transient = get_site_transient( 'update_themes' );
if ( isset( $updates_transient->response ) ) {
$updates = $updates_transient->response;
}
}
WP_Theme::sort_by_name( $themes );
foreach ( $themes as $theme ) {
$slug = $theme->get_stylesheet();
$encoded_slug = urlencode( $slug );
$parent = false;
if ( $theme->parent() ) {
$parent = $theme->parent()->display( 'Name' );
$parents[ $slug ] = $theme->parent()->get_stylesheet();
}
No-JavaScript and no-Customizer support for the new Themes screen. JavaScript is rarely disabled, but graceful degradation is still important. For example, syntax errors can occur, usually with major WP updates that overhaul entire experiences and update external libraries combined with themes or plugins doing weird or old things. If this error is due to their current theme, a user needs to be able to access the themes screen to switch away from the theme. A more subtle issue could make things painful to diagnose. This commit renders the grid in PHP (the template is duplicated, but it lightweight, fairly mundane, and easy to sync). On Backbone render, the grid is then re-rendered from JavaScript so searches can occur. Customize and Live Preview is disabled if JS fails to kick in. If JS is disabled, old-school "Preview" links are displayed. No-Customizer support: The customizer is only supported when the browser supports postMessage (IE8+), and if the frontend is a different domain, CORS (IE10+). We use the .hide-if-no-customize class for this. Pre-customize "Preview" links should use .hide-if-customize. The .load-customize class should be used to declare a link that opens the customizer. This enables customize-loader.js to intercept this link and load the customizer on top of the current window, making for a smoother experience. fixes #25964. Built from https://develop.svn.wordpress.org/trunk@26726 git-svn-id: http://core.svn.wordpress.org/trunk@26615 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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$prepared_themes[ $slug ] = array(
'id' => $slug,
'name' => $theme->display( 'Name' ),
'screenshot' => array( $theme->get_screenshot() ), // @todo multiple
'description' => $theme->display( 'Description' ),
'author' => $theme->display( 'Author', false, true ),
'authorAndUri' => $theme->display( 'Author' ),
'version' => $theme->display( 'Version' ),
'tags' => $theme->display( 'Tags' ),
'parent' => $parent,
'active' => $slug === $current_theme,
'hasUpdate' => isset( $updates[ $slug ] ),
'update' => get_theme_update_available( $theme ),
'actions' => array(
'activate' => current_user_can( 'switch_themes' ) ? wp_nonce_url( admin_url( 'themes.php?action=activate&amp;stylesheet=' . $encoded_slug ), 'switch-theme_' . $slug ) : null,
'customize' => ( current_user_can( 'edit_theme_options' ) && current_user_can( 'customize' ) ) ? wp_customize_url( $slug ) : null,
No-JavaScript and no-Customizer support for the new Themes screen. JavaScript is rarely disabled, but graceful degradation is still important. For example, syntax errors can occur, usually with major WP updates that overhaul entire experiences and update external libraries combined with themes or plugins doing weird or old things. If this error is due to their current theme, a user needs to be able to access the themes screen to switch away from the theme. A more subtle issue could make things painful to diagnose. This commit renders the grid in PHP (the template is duplicated, but it lightweight, fairly mundane, and easy to sync). On Backbone render, the grid is then re-rendered from JavaScript so searches can occur. Customize and Live Preview is disabled if JS fails to kick in. If JS is disabled, old-school "Preview" links are displayed. No-Customizer support: The customizer is only supported when the browser supports postMessage (IE8+), and if the frontend is a different domain, CORS (IE10+). We use the .hide-if-no-customize class for this. Pre-customize "Preview" links should use .hide-if-customize. The .load-customize class should be used to declare a link that opens the customizer. This enables customize-loader.js to intercept this link and load the customizer on top of the current window, making for a smoother experience. fixes #25964. Built from https://develop.svn.wordpress.org/trunk@26726 git-svn-id: http://core.svn.wordpress.org/trunk@26615 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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'preview' => add_query_arg( array(
'preview' => 1,
'template' => urlencode( $theme->get_template() ),
'stylesheet' => urlencode( $slug ),
'preview_iframe' => true,
'TB_iframe' => true,
), home_url( '/' ) ),
'delete' => current_user_can( 'delete_themes' ) ? wp_nonce_url( admin_url( 'themes.php?action=delete&amp;stylesheet=' . $encoded_slug ), 'delete-theme_' . $slug ) : null,
),
);
}
// Remove 'delete' action if theme has an active child
if ( isset( $parents ) && array_key_exists( $current_theme, $parents ) ) {
unset( $prepared_themes[ $parents[ $current_theme ] ]['actions']['delete'] );
}
/**
* Filter the themes prepared for JavaScript, for themes.php.
*
* Could be useful for changing the order, which is by name by default.
*
* @since 3.8.0
*
* @param array $prepared_themes Array of themes.
*/
No-JavaScript and no-Customizer support for the new Themes screen. JavaScript is rarely disabled, but graceful degradation is still important. For example, syntax errors can occur, usually with major WP updates that overhaul entire experiences and update external libraries combined with themes or plugins doing weird or old things. If this error is due to their current theme, a user needs to be able to access the themes screen to switch away from the theme. A more subtle issue could make things painful to diagnose. This commit renders the grid in PHP (the template is duplicated, but it lightweight, fairly mundane, and easy to sync). On Backbone render, the grid is then re-rendered from JavaScript so searches can occur. Customize and Live Preview is disabled if JS fails to kick in. If JS is disabled, old-school "Preview" links are displayed. No-Customizer support: The customizer is only supported when the browser supports postMessage (IE8+), and if the frontend is a different domain, CORS (IE10+). We use the .hide-if-no-customize class for this. Pre-customize "Preview" links should use .hide-if-customize. The .load-customize class should be used to declare a link that opens the customizer. This enables customize-loader.js to intercept this link and load the customizer on top of the current window, making for a smoother experience. fixes #25964. Built from https://develop.svn.wordpress.org/trunk@26726 git-svn-id: http://core.svn.wordpress.org/trunk@26615 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2013-12-06 11:11:10 -05:00
$prepared_themes = apply_filters( 'wp_prepare_themes_for_js', $prepared_themes );
return array_values( $prepared_themes );
}