WordPress/wp-includes/class-wp-customize.php
nacin 6593186cb7 Introduce new registration methods for custom headers and custom backgrounds. Backwards compatible, but old methods will be deprecated. see #20249. see #17242.
Custom header: Use add_theme_support('custom-header', $args) instead of add_custom_image_header(). Deprecates all use of constants.
 * HEADER_TEXTCOLOR is now (string) 'default-text-color'.
 * NO_HEADER_TEXT is nowi ! (bool) 'header-text'.
 * HEADER_IMAGE_WIDTH (and _HEIGHT) are now (int) 'width' and 'height'.
 * HEADER_IMAGE is now (string) 'default-image'.
 * The 3.4 arguments 'suggested-width' and 'suggested-height' are now just 'width' and 'height' (they are "suggested" when flex-width and flex-height are set).
 * Callback arguments for add_custom_image_header() can now be passed to add_theme_support().

Custom background: Use add_theme_support('custom-background, $args) instead of add_custom_background(). Deprecates all use of constants.
 * BACKGROUND_COLOR is now (string) 'default-color'.
 * BACKGROUND_IMAGE is now (string) 'default-image'.
 * Callback arguments for add_custom_background() can now be passed to add_theme_support().

Inheritance: add_theme_support() arguments for custom headers and custom backgrounds is a first-one-wins situation. This is not an unusual paradigm for theming as a child theme (which is included first) overrides a parent theme.
 * Once an argument is explicitly set, it cannot be overridden. You must hook in earlier and set it first.
 * Any argument that is not explicitly set before WP is loaded will inherit the default value for that argument.
 * It is therefore possible for a child theme to pass minimal arguments as long as the parent theme specifies others that may be necessary.
 * Allows for a child theme to alter callbacks for <head> and preview (previously, calling add_custom_image_header more than once broke things).
 * The just-in-time bits ensure that arguments fall back to default values, that the values of all constants are considered (such as one defined after an old add_custom_image_header call), and that all constants are defined (so as to be backwards compatible).

get_theme_support(): Introduce new second argument, which headers and backgrounds leverage to return an argument. current_theme_supports() already supported checking the truthiness of the argument.
 * For example, get_theme_support( 'custom-header', 'width' ) will return the width specified during registration.
 * If you had wanted the default image, use get_theme_support( 'custom-header', 'default-image' ) instead of HEADER_IMAGE. 

Deprecate remove_custom_image_header(), remove_custom_background(). Use remove_theme_support('custom-header'), 'custom-background'.

Deprecate short-lived custom-header-uploads internal support; this is now (bool) 'uploads' for add_theme_support().

New 3.4 functions renamed or removed: Rename get_current_header_data() to get_custom_header(). Remove get_header_image_width() and _height() in favor of get_custom_header()->width and height.



git-svn-id: http://svn.automattic.com/wordpress/trunk@20212 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2012-03-19 17:12:44 +00:00

659 lines
16 KiB
PHP

<?php
/**
* Customize
*
* @package WordPress
* @subpackage Customize
* @since 3.4.0
*/
final class WP_Customize {
protected $template;
protected $stylesheet;
protected $previewing = false;
protected $settings = array();
protected $sections = array();
/**
* Constructor.
*
* @since 3.4.0
*/
public function __construct() {
require( ABSPATH . WPINC . '/class-wp-customize-setting.php' );
require( ABSPATH . WPINC . '/class-wp-customize-section.php' );
add_action( 'setup_theme', array( $this, 'setup_theme' ) );
add_action( 'admin_init', array( $this, 'admin_init' ) );
add_action( 'wp_loaded', array( $this, 'wp_loaded' ) );
add_action( 'admin_footer', array( $this, 'admin_footer' ) );
add_action( 'customize_previewing', array( $this, 'customize_previewing' ) );
add_action( 'customize_register', array( $this, 'register_controls' ) );
add_action( 'customize_controls_init', array( $this, 'prepare_controls' ) );
}
/**
* Update theme modifications for the current theme.
* Note: Candidate core function.
* http://core.trac.wordpress.org/ticket/20091
*
* @since 3.4.0
*
* @param array $mods Theme modifications.
*/
public function set_theme_mods( $mods ) {
$current = get_theme_mods();
$mods = wp_parse_args( $mods, $current );
$theme = get_stylesheet();
update_option( "theme_mods_$theme", $mods );
}
/**
* Start preview and customize theme.
* Check if customize query variable exist.
*
* @since 3.4.0
*/
public function setup_theme() {
if ( ! isset( $_REQUEST['customize'] ) || 'on' != $_REQUEST['customize'] )
return;
if ( ! $this->set_stylesheet() || isset( $_REQUEST['save'] ) )
return;
$this->previewing = true;
do_action( 'customize_previewing' );
}
/**
* Init filters to filter theme options.
*
* @since 3.4.0
*/
public function customize_previewing() {
global $wp_theme_directories;
show_admin_bar( false );
add_filter( 'template', array( $this, 'get_template' ) );
add_filter( 'stylesheet', array( $this, 'get_stylesheet' ) );
add_filter( 'pre_option_current_theme', array( $this, 'current_theme' ) );
// @link: http://core.trac.wordpress.org/ticket/20027
add_filter( 'pre_option_stylesheet', array( $this, 'get_stylesheet' ) );
add_filter( 'pre_option_template', array( $this, 'get_template' ) );
// Handle custom theme roots.
if ( count( $wp_theme_directories ) > 1 ) {
add_filter( 'pre_option_stylesheet_root', array( $this, 'get_stylesheet_root' ) );
add_filter( 'pre_option_template_root', array( $this, 'get_template_root' ) );
}
}
/**
* Register styles/scripts and initialize the preview of each setting
*
* @since 3.4.0
*/
public function wp_loaded() {
do_action( 'customize_register' );
if ( ! $this->is_preview() )
return;
wp_enqueue_script( 'customize-preview' );
add_action( 'wp_footer', array( $this, 'customize_preview_settings' ), 20 );
foreach ( $this->settings as $setting ) {
$setting->preview();
}
}
/**
* Print javascript settings.
*
* @since 3.4.0
*/
public function customize_preview_settings() {
$settings = array(
// @todo: Perhaps grab the URL via $_POST?
'parent' => esc_url( admin_url( 'themes.php' ) ),
'values' => array(),
);
foreach ( $this->settings as $id => $setting ) {
$settings['values'][ $id ] = $setting->value();
}
?>
<script type="text/javascript">
(function() {
if ( typeof wp === 'undefined' || ! wp.customize )
return;
wp.customize.settings = <?php echo json_encode( $settings ); ?>;
})();
</script>
<?php
}
/**
* Is it a theme preview?
*
* @since 3.4.0
*
* @return bool True if it's a preview, false if not.
*/
public function is_preview() {
return (bool) $this->previewing;
}
/**
* Set the template name of the previewed theme.
*
* @since 3.4.0
*
* @return bool|string Template name.
*/
public function set_template() {
if ( ! empty( $this->template ) )
return $this->template;
$template = preg_replace('|[^a-z0-9_./-]|i', '', $_REQUEST['template'] );
if ( validate_file( $template ) )
return false;
return $this->template = $template;
}
/**
* Set the stylesheet name of the previewed theme.
*
* @since 3.4.0
*
* @return bool|string Stylesheet name.
*/
public function set_stylesheet() {
if ( ! empty( $this->stylesheet ) )
return $this->stylesheet;
$this->set_template();
if ( empty( $this->template ) )
return false;
if ( empty( $_REQUEST['stylesheet'] ) ) {
$stylesheet = $this->template;
} else {
$stylesheet = preg_replace( '|[^a-z0-9_./-]|i', '', $_REQUEST['stylesheet'] );
if ( $stylesheet != $this->template && validate_file( $stylesheet ) )
return false;
}
return $this->stylesheet = $stylesheet;
}
/**
* Retrieve the template name of the previewed theme.
*
* @since 3.4.0
*
* @return string Template name.
*/
public function get_template() {
return $this->template;
}
/**
* Retrieve the stylesheet name of the previewed theme.
*
* @since 3.4.0
*
* @return string Stylesheet name.
*/
public function get_stylesheet() {
return $this->stylesheet;
}
/**
* Retrieve the template root of the previewed theme.
*
* @since 3.4.0
*
* @return string Theme root.
*/
public function get_template_root() {
return get_raw_theme_root( $this->template, true );
}
/**
* Retrieve the stylesheet root of the previewed theme.
*
* @since 3.4.0
*
* @return string Theme root.
*/
public function get_stylesheet_root() {
return get_raw_theme_root( $this->stylesheet, true );
}
/**
* Filter the current theme and return the name of the previewed theme.
*
* @since 3.4.0
*
* @return string Theme name.
*/
public function current_theme( $current_theme ) {
return wp_get_theme( $this->stylesheet )->get('Name');
}
/**
* Trigger save action and load customize controls.
*
* @since 3.4.0
*/
public function admin_init() {
if ( isset( $_REQUEST['save'] ) )
$this->save();
wp_enqueue_script( 'customize-loader' );
if ( ( defined( 'DOING_AJAX' ) && DOING_AJAX ) )
return;
if ( ! isset( $_GET['customize'] ) || 'on' != $_GET['customize'] )
return;
if ( ! $this->is_preview() )
return;
if ( ! current_user_can( 'edit_theme_options' ) )
return;
include( ABSPATH . WPINC . '/customize-controls.php' );
die;
}
/**
* Print the customize template.
*
* @since 3.4.0
*/
public function admin_footer() {
?>
<div id="customize-container" class="wp-full-overlay">
<input type="hidden" class="admin-url" value="<?php echo esc_url( admin_url( 'admin.php' ) ); ?>" />
<a href="#" class="close-full-overlay"><?php printf( __( '&larr; Return to %s' ), get_admin_page_title() ); ?></a>
<a href="#" class="collapse-sidebar button-secondary" title="<?php esc_attr_e('Collapse Sidebar'); ?>"><span></span></a>
</div>
<?php
}
/**
* Switch the theme and trigger the save action of each setting.
*
* @since 3.4.0
*/
public function save() {
if ( $this->is_preview() )
return;
check_admin_referer( 'customize_controls' );
if ( ! $this->set_stylesheet() )
return;
$active_template = get_template();
$active_stylesheet = get_stylesheet();
// Do we have to switch themes?
if ( $this->get_template() != $active_template || $this->get_stylesheet() != $active_stylesheet ) {
if ( ! current_user_can( 'switch_themes' ) )
return;
switch_theme( $this->get_template(), $this->get_stylesheet() );
}
do_action( 'customize_save' );
foreach ( $this->settings as $setting ) {
$setting->save();
}
add_action( 'admin_notices', array( $this, '_save_feedback' ) );
}
/**
* Show an admin notice after settings are saved.
*
* @since 3.4.0
*/
public function _save_feedback() {
?>
<div class="updated"><p><?php printf( __( 'Settings saved and theme activated. <a href="%s">Visit site</a>.' ), home_url( '/' ) ); ?></p></div>
<?php
}
/**
* Add a customize setting.
*
* @since 3.4.0
*
* @param string $id An specific ID of the setting. Can be a
* theme mod or option name.
* @param array $args Setting arguments.
*/
public function add_setting( $id, $args = array() ) {
$setting = new WP_Customize_Setting( $id, $args );
$this->settings[ $setting->id ] = $setting;
}
/**
* Retrieve a customize setting.
*
* @since 3.4.0
*
* @param string $id An specific ID of the setting.
* @return object The settings object.
*/
public function get_setting( $id ) {
if ( isset( $this->settings[ $id ] ) )
return $this->settings[ $id ];
}
/**
* Remove a customize setting.
*
* @since 3.4.0
*
* @param string $id An specific ID of the setting.
*/
public function remove_setting( $id ) {
unset( $this->settings[ $id ] );
}
/**
* Add a customize section.
*
* @since 3.4.0
*
* @param string $id An specific ID of the section.
* @param array $args Section arguments.
*/
public function add_section( $id, $args = array() ) {
$section = new WP_Customize_Section( $id, $args );
$this->sections[ $section->id ] = $section;
}
/**
* Retrieve a customize section.
*
* @since 3.4.0
*
* @param string $id An specific ID of the section.
* @return object The section object.
*/
public function get_section( $id ) {
if ( isset( $this->sections[ $id ] ) )
return $this->sections[ $id ];
}
/**
* Remove a customize section.
*
* @since 3.4.0
*
* @param string $id An specific ID of the section.
*/
public function remove_section( $id ) {
unset( $this->sections[ $id ] );
}
/**
* Helper function to compare two objects by priority.
*
* @since 3.4.0
*
* @param object $a Object A.
* @param object $b Object B.
*/
protected function _cmp_priority( $a, $b ) {
$ap = $a->priority;
$bp = $b->priority;
if ( $ap == $bp )
return 0;
return ( $ap > $bp ) ? 1 : -1;
}
/**
* Prepare settings and sections. Also enqueue needed scripts/styles.
*
* @since 3.4.0
*/
public function prepare_controls() {
// Reversing makes uasort sort by time added when conflicts occur.
$this->sections = array_reverse( $this->sections );
uasort( $this->sections, array( $this, '_cmp_priority' ) );
$this->settings = array_reverse( $this->settings );
foreach ( $this->settings as $setting ) {
if ( ! isset( $this->sections[ $setting->section ] ) )
continue;
$this->sections[ $setting->section ]->settings[] = $setting;
if ( $setting->check_capabilities() )
$setting->enqueue();
}
foreach ( $this->sections as $section ) {
usort( $section->settings, array( $this, '_cmp_priority' ) );
}
}
/**
* Register some default controls.
*
* @since 3.4.0
*/
public function register_controls() {
/* Custom Header */
$this->add_section( 'header', array(
'title' => __( 'Header' ),
'theme_supports' => 'custom-header',
) );
$this->add_setting( 'header_textcolor', array(
'label' => 'Text Color',
'section' => 'header',
'sanitize_callback' => 'sanitize_hexcolor',
'control' => 'color',
'default' => get_theme_support( 'custom-header', 'default-text-color' ),
) );
/*
$this->add_setting( 'display_header', array(
'label' => 'Display Text',
'section' => 'header',
'type' => 'radio',
'choices' => array(
'show' => 'Yes',
'hide' => 'No'
),
// Showing header text is actually done by setting header_textcolor to 'blank'.
// @todo: Do some JS magic to make this work (since we'll be hiding the textcolor input).
'theme_mod' => false,
) );
*/
// Input type: checkbox
// With custom value
$this->add_setting( 'header_image', array(
'label' => 'Random Image',
'section' => 'header',
'control' => 'checkbox',
// @todo
// not the default, it's the value.
// value is saved in get_theme_support( 'custom-header', 'random-default' )
'default' => 'random-default-image'
) );
/* Custom Background */
$this->add_section( 'background', array(
'title' => __( 'Background' ),
'theme_supports' => 'custom-background',
) );
// Input type: Color
// With sanitize_callback
$this->add_setting( 'background_color', array(
'label' => 'Background Color',
'section' => 'background',
'control' => 'color',
'default' => get_theme_support( 'custom-background', 'default-color' ),
'sanitize_callback' => 'sanitize_hexcolor',
) );
$this->add_setting( 'background_image', array(
'label' => 'Background Image',
'section' => 'background',
'control' => 'upload',
) );
/* Nav Menus */
$locations = get_registered_nav_menus();
$menus = wp_get_nav_menus();
$menu_locations = get_nav_menu_locations();
$num_locations = count( array_keys( $locations ) );
$this->add_section( 'nav', array(
'title' => __( 'Navigation' ),
'theme_supports' => 'menus',
'description' => sprintf( _n('Your theme supports %s menu. Select which menu you would like to use.', 'Your theme supports %s menus. Select which menu appears in each location.', $num_locations ), number_format_i18n( $num_locations ) ),
) );
foreach ( $locations as $location => $description ) {
$choices = array( 0 => '' );
foreach ( $menus as $menu ) {
$truncated_name = wp_html_excerpt( $menu->name, 40 );
$truncated_name == $menu->name ? $menu->name : trim( $truncated_name ) . '&hellip;';
$choices[ $menu->term_id ] = $truncated_name;
}
$this->add_setting( "nav_menu_locations[{$location}]", array(
'label' => $description,
'theme_supports' => 'menus', // Todo: Needs also widgets -- array( 'menus', 'widgets' )
'section' => 'nav',
'control' => 'select',
'choices' => $choices,
'sanitize_callback' => 'absint',
) );
}
/* Static Front Page */
// #WP19627
$this->add_section( 'static_front_page', array(
'title' => __( 'Static Front Page' ),
// 'theme_supports' => 'static-front-page',
'description' => __( 'Your theme supports a static front page.' ),
) );
$choices = array();
$choices['posts'] = __( 'Your latest posts' );
$choices['page'] = __( 'A static page (select below)' );
$this->add_setting( 'show_on_front', array(
'label' => __( 'Front page displays' ),
// 'theme_supports' => 'static-front-page',
'section' => 'static_front_page',
'control' => 'radio',
'choices' => $choices,
'default' => get_option( 'show_on_front' ),
'type' => 'option',
'capability' => 'manage_options'
) );
$this->add_setting( 'page_on_front', array(
'label' => __( 'Front page' ),
// 'theme_supports' => 'static-front-page',
'section' => 'static_front_page',
'control' => 'dropdown-pages',
'type' => 'option',
'capability' => 'manage_options'
) );
$this->add_setting( 'page_for_posts', array(
'label' => __( 'Posts page' ),
// 'theme_supports' => 'static-front-page',
'section' => 'static_front_page',
'control' => 'dropdown-pages',
'type' => 'option',
'capability' => 'manage_options'
) );
/* Site Title & Tagline */
$this->add_section( 'strings', array(
'title' => __( 'Site Title & Tagline' ),
) );
$this->add_setting( 'blogname', array(
'label' => __( 'Site Title' ),
'section' => 'strings',
'default' => get_option( 'blogname' ),
'type' => 'option',
'capability' => 'manage_options'
) );
$this->add_setting( 'blogdescription', array(
'label' => __( 'Tagline' ),
'section' => 'strings',
'default' => get_option( 'blogdescription' ),
'type' => 'option',
'capability' => 'manage_options'
) );
}
};
// Callback function for sanitizing a hex color
function sanitize_hexcolor( $color ) {
$color = preg_replace( '/[^0-9a-fA-F]/', '', $color );
if ( preg_match('|[A-Fa-f0-9]{3,6}|', $color ) )
return $color;
return $color;
}
// Custome render type for a dropdown menu.
function customize_control_dropdown_pages( $setting ) {
printf(
'<label class="customize-control-select"><span class="customize-control-title">%s</span> %s</label>',
$setting->label,
wp_dropdown_pages(
array(
'name' => $setting->get_name(),
'echo' => 0,
'show_option_none' => __( '&mdash; Select &mdash;' ),
'option_none_value' => '0',
'selected' => get_option( $setting->id )
)
)
);
}
add_action( 'customize_render_control-dropdown-pages', 'customize_control_dropdown_pages' );