440 lines
11 KiB
PHP
440 lines
11 KiB
PHP
<?php
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/**
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* Customize Setting Class.
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*
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* @package WordPress
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* @subpackage Customize
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* @since 3.4.0
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*/
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class WP_Customize_Setting {
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public $manager;
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public $id;
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public $type = 'theme_mod';
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public $capability = 'edit_theme_options';
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public $theme_supports = '';
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public $default = '';
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public $transport = 'refresh';
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public $sanitize_callback = '';
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public $sanitize_js_callback = '';
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protected $id_data = array();
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private $_post_value; // Cached, sanitized $_POST value.
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/**
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* Constructor.
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*
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* @since 3.4.0
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*
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* @param WP_Customize_Manager $manager
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* @param string $id An specific ID of the setting. Can be a
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* theme mod or option name.
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* @param array $args Setting arguments.
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* @return WP_Customize_Setting
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*/
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function __construct( $manager, $id, $args = array() ) {
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$keys = array_keys( get_class_vars( __CLASS__ ) );
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foreach ( $keys as $key ) {
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if ( isset( $args[ $key ] ) )
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$this->$key = $args[ $key ];
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}
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$this->manager = $manager;
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$this->id = $id;
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// Parse the ID for array keys.
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$this->id_data[ 'keys' ] = preg_split( '/\[/', str_replace( ']', '', $this->id ) );
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$this->id_data[ 'base' ] = array_shift( $this->id_data[ 'keys' ] );
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// Rebuild the ID.
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$this->id = $this->id_data[ 'base' ];
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if ( ! empty( $this->id_data[ 'keys' ] ) )
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$this->id .= '[' . implode( '][', $this->id_data[ 'keys' ] ) . ']';
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if ( $this->sanitize_callback )
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add_filter( "customize_sanitize_{$this->id}", $this->sanitize_callback, 10, 2 );
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if ( $this->sanitize_js_callback )
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add_filter( "customize_sanitize_js_{$this->id}", $this->sanitize_js_callback, 10, 2 );
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return $this;
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}
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/**
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* Handle previewing the setting.
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*
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* @since 3.4.0
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*/
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public function preview() {
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switch( $this->type ) {
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case 'theme_mod' :
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add_filter( 'theme_mod_' . $this->id_data[ 'base' ], array( $this, '_preview_filter' ) );
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break;
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case 'option' :
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if ( empty( $this->id_data[ 'keys' ] ) )
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add_filter( 'pre_option_' . $this->id_data[ 'base' ], array( $this, '_preview_filter' ) );
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else {
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add_filter( 'option_' . $this->id_data[ 'base' ], array( $this, '_preview_filter' ) );
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add_filter( 'default_option_' . $this->id_data[ 'base' ], array( $this, '_preview_filter' ) );
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}
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break;
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default :
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do_action( 'customize_preview_' . $this->id );
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}
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}
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/**
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* Callback function to filter the theme mods and options.
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*
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* @since 3.4.0
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* @uses WP_Customize_Setting::multidimensional_replace()
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*
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* @param mixed $original Old value.
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* @return mixed New or old value.
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*/
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public function _preview_filter( $original ) {
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return $this->multidimensional_replace( $original, $this->id_data[ 'keys' ], $this->post_value() );
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}
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/**
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* Set the value of the parameter for a specific theme.
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*
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* @since 3.4.0
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*
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* @return bool False if cap check fails or value isn't set.
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*/
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public final function save() {
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$value = $this->post_value();
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if ( ! $this->check_capabilities() || ! isset( $value ) )
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return false;
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do_action( 'customize_save_' . $this->id_data[ 'base' ] );
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$this->update( $value );
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}
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/**
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* Fetches, validates, and sanitizes the $_POST value.
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*
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* @since 3.4.0
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*
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* @param mixed $default A default value which is used as a fallback. Default is null.
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* @return mixed The default value on failure, otherwise the sanitized value.
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*/
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public final function post_value( $default = null ) {
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if ( isset( $this->_post_value ) )
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return $this->_post_value;
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$result = $this->manager->post_value( $this );
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if ( isset( $result ) )
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return $this->_post_value = $result;
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else
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return $default;
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}
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/**
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* Sanitize an input.
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*
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* @since 3.4.0
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*
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* @param mixed $value The value to sanitize.
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* @return mixed Null if an input isn't valid, otherwise the sanitized value.
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*/
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public function sanitize( $value ) {
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$value = wp_unslash( $value );
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return apply_filters( "customize_sanitize_{$this->id}", $value, $this );
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}
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/**
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* Set the value of the parameter for a specific theme.
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*
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* @since 3.4.0
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*
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* @param mixed $value The value to update.
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* @return mixed The result of saving the value.
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*/
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protected function update( $value ) {
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switch( $this->type ) {
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case 'theme_mod' :
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return $this->_update_theme_mod( $value );
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break;
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case 'option' :
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return $this->_update_option( $value );
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break;
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default :
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return do_action( 'customize_update_' . $this->type, $value );
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}
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}
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/**
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* Update the theme mod from the value of the parameter.
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*
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* @since 3.4.0
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*
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* @param mixed $value The value to update.
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* @return mixed The result of saving the value.
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*/
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protected function _update_theme_mod( $value ) {
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// Handle non-array theme mod.
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if ( empty( $this->id_data[ 'keys' ] ) )
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return set_theme_mod( $this->id_data[ 'base' ], $value );
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// Handle array-based theme mod.
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$mods = get_theme_mod( $this->id_data[ 'base' ] );
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$mods = $this->multidimensional_replace( $mods, $this->id_data[ 'keys' ], $value );
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if ( isset( $mods ) )
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return set_theme_mod( $this->id_data[ 'base' ], $mods );
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}
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/**
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* Update the theme mod from the value of the parameter.
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*
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* @since 3.4.0
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*
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* @param mixed $value The value to update.
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* @return mixed The result of saving the value.
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*/
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protected function _update_option( $value ) {
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// Handle non-array option.
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if ( empty( $this->id_data[ 'keys' ] ) )
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return update_option( $this->id_data[ 'base' ], $value );
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// Handle array-based options.
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$options = get_option( $this->id_data[ 'base' ] );
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$options = $this->multidimensional_replace( $options, $this->id_data[ 'keys' ], $value );
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if ( isset( $options ) )
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return update_option( $this->id_data[ 'base' ], $options );
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}
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/**
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* Fetch the value of the parameter for a specific theme.
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*
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* @since 3.4.0
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*
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* @return mixed The requested value.
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*/
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public function value() {
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switch( $this->type ) {
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case 'theme_mod' :
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$function = 'get_theme_mod';
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break;
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case 'option' :
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$function = 'get_option';
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break;
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default :
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return apply_filters( 'customize_value_' . $this->id_data[ 'base' ], $this->default );
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}
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// Handle non-array value
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if ( empty( $this->id_data[ 'keys' ] ) )
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return $function( $this->id_data[ 'base' ], $this->default );
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// Handle array-based value
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$values = $function( $this->id_data[ 'base' ] );
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return $this->multidimensional_get( $values, $this->id_data[ 'keys' ], $this->default );
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}
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/**
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* Escape the parameter's value for use in JavaScript.
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*
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* @since 3.4.0
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*
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* @return mixed The requested escaped value.
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*/
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public function js_value() {
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$value = apply_filters( "customize_sanitize_js_{$this->id}", $this->value(), $this );
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if ( is_string( $value ) )
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return html_entity_decode( $value, ENT_QUOTES, 'UTF-8');
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return $value;
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}
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/**
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* Check if the theme supports the setting and check user capabilities.
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*
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* @since 3.4.0
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*
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* @return bool False if theme doesn't support the setting or user can't change setting, otherwise true.
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*/
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public final function check_capabilities() {
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if ( $this->capability && ! call_user_func_array( 'current_user_can', (array) $this->capability ) )
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return false;
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if ( $this->theme_supports && ! call_user_func_array( 'current_theme_supports', (array) $this->theme_supports ) )
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return false;
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return true;
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}
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/**
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* Multidimensional helper function.
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*
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* @since 3.4.0
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*
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* @param $root
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* @param $keys
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* @param bool $create Default is false.
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* @return null|array Keys are 'root', 'node', and 'key'.
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*/
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final protected function multidimensional( &$root, $keys, $create = false ) {
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if ( $create && empty( $root ) )
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$root = array();
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if ( ! isset( $root ) || empty( $keys ) )
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return;
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$last = array_pop( $keys );
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$node = &$root;
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foreach ( $keys as $key ) {
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if ( $create && ! isset( $node[ $key ] ) )
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$node[ $key ] = array();
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if ( ! is_array( $node ) || ! isset( $node[ $key ] ) )
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return;
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$node = &$node[ $key ];
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}
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if ( $create && ! isset( $node[ $last ] ) )
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$node[ $last ] = array();
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if ( ! isset( $node[ $last ] ) )
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return;
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return array(
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'root' => &$root,
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'node' => &$node,
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'key' => $last,
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);
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}
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/**
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* Will attempt to replace a specific value in a multidimensional array.
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*
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* @since 3.4.0
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*
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* @param $root
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* @param $keys
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* @param mixed $value The value to update.
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* @return
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*/
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final protected function multidimensional_replace( $root, $keys, $value ) {
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if ( ! isset( $value ) )
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return $root;
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elseif ( empty( $keys ) ) // If there are no keys, we're replacing the root.
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return $value;
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$result = $this->multidimensional( $root, $keys, true );
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if ( isset( $result ) )
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$result['node'][ $result['key'] ] = $value;
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return $root;
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}
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/**
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* Will attempt to fetch a specific value from a multidimensional array.
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*
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* @since 3.4.0
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*
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* @param $root
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* @param $keys
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* @param $default A default value which is used as a fallback. Default is null.
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* @return mixed The requested value or the default value.
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*/
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final protected function multidimensional_get( $root, $keys, $default = null ) {
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if ( empty( $keys ) ) // If there are no keys, test the root.
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return isset( $root ) ? $root : $default;
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$result = $this->multidimensional( $root, $keys );
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return isset( $result ) ? $result['node'][ $result['key'] ] : $default;
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}
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/**
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* Will attempt to check if a specific value in a multidimensional array is set.
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*
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* @since 3.4.0
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*
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* @param $root
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* @param $keys
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* @return bool True if value is set, false if not.
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*/
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final protected function multidimensional_isset( $root, $keys ) {
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$result = $this->multidimensional_get( $root, $keys );
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return isset( $result );
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}
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}
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/**
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* A setting that is used to filter a value, but will not save the results.
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*
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* Results should be properly handled using another setting or callback.
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*
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* @package WordPress
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* @subpackage Customize
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* @since 3.4.0
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*/
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class WP_Customize_Filter_Setting extends WP_Customize_Setting {
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/**
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* @since 3.4.0
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*/
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public function update( $value ) {}
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}
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/**
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* A setting that is used to filter a value, but will not save the results.
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*
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* Results should be properly handled using another setting or callback.
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*
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* @package WordPress
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* @subpackage Customize
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* @since 3.4.0
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*/
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final class WP_Customize_Header_Image_Setting extends WP_Customize_Setting {
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public $id = 'header_image_data';
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/**
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* @since 3.4.0
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*
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* @param $value
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*/
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public function update( $value ) {
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global $custom_image_header;
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// If the value doesn't exist (removed or random),
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// use the header_image value.
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if ( ! $value )
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$value = $this->manager->get_setting('header_image')->post_value();
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if ( is_array( $value ) && isset( $value['choice'] ) )
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$custom_image_header->set_header_image( $value['choice'] );
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else
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$custom_image_header->set_header_image( $value );
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}
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}
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/**
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* @package WordPress
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* @subpackage Customize
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* @since 3.4.0
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*/
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final class WP_Customize_Background_Image_Setting extends WP_Customize_Setting {
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public $id = 'background_image_thumb';
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/**
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* @since 3.4.0
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* @uses remove_theme_mod()
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*
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* @param $value
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*/
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public function update( $value ) {
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remove_theme_mod( 'background_image_thumb' );
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}
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}
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