630 lines
16 KiB
PHP
630 lines
16 KiB
PHP
<?php
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/**
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* WordPress Customize Setting classes
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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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/**
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* Customize Setting class.
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*
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* Handles saving and sanitizing of settings.
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*
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* @since 3.4.0
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*
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* @see WP_Customize_Manager
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*/
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class WP_Customize_Setting {
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/**
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* @access public
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* @var WP_Customize_Manager
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*/
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public $manager;
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/**
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* @access public
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* @var string
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*/
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public $id;
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/**
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* @access public
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* @var string
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*/
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public $type = 'theme_mod';
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/**
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* Capability required to edit this setting.
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*
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* @var string
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*/
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public $capability = 'edit_theme_options';
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/**
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* Feature a theme is required to support to enable this setting.
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*
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* @access public
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* @var string
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*/
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public $theme_supports = '';
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public $default = '';
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public $transport = 'refresh';
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/**
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* Server-side sanitization callback for the setting's value.
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*
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* @var callback
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*/
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public $sanitize_callback = '';
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public $sanitize_js_callback = '';
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/**
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* Whether or not the setting is initially dirty when created.
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*
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* This is used to ensure that a setting will be sent from the pane to the
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* preview when loading the Customizer. Normally a setting only is synced to
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* the preview if it has been changed. This allows the setting to be sent
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* from the start.
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*
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* @since 4.2.0
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* @access public
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* @var bool
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*/
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public $dirty = false;
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protected $id_data = array();
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/**
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* Constructor.
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*
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* Any supplied $args override class property defaults.
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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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*/
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public function __construct( $manager, $id, $args = array() ) {
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$keys = array_keys( get_object_vars( $this ) );
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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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}
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/**
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* The ID for the current blog when the preview() method was called.
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*
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* @since 4.2.0
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* @access protected
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* @var int
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*/
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protected $_previewed_blog_id;
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/**
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* Return true if the current blog is not the same as the previewed blog.
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*
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* @since 4.2.0
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* @access public
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*
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* @return bool|null Returns null if preview() has not been called yet.
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*/
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public function is_current_blog_previewed() {
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if ( ! isset( $this->_previewed_blog_id ) ) {
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return null;
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}
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return ( get_current_blog_id() === $this->_previewed_blog_id );
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}
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/**
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* Original non-previewed value stored by the preview method.
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*
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* @see WP_Customize_Setting::preview()
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* @since 4.1.1
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* @var mixed
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*/
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protected $_original_value;
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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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if ( ! isset( $this->_original_value ) ) {
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$this->_original_value = $this->value();
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}
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if ( ! isset( $this->_previewed_blog_id ) ) {
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$this->_previewed_blog_id = get_current_blog_id();
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}
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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( $this, '_preview_filter' ) );
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}
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break;
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default :
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/**
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* Fires when the {@see WP_Customize_Setting::preview()} method is called for settings
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* not handled as theme_mods or options.
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*
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* The dynamic portion of the hook name, `$this->id`, refers to the setting ID.
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*
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* @since 3.4.0
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*
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* @param WP_Customize_Setting $this {@see WP_Customize_Setting} instance.
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*/
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do_action( "customize_preview_{$this->id}", $this );
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/**
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* Fires when the {@see WP_Customize_Setting::preview()} method is called for settings
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* not handled as theme_mods or options.
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*
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* The dynamic portion of the hook name, `$this->type`, refers to the setting type.
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*
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* @since 4.1.0
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*
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* @param WP_Customize_Setting $this {@see WP_Customize_Setting} instance.
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*/
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do_action( "customize_preview_{$this->type}", $this );
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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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* If switch_to_blog() was called after the preview() method, and the current
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* blog is now not the same blog, then this method does a no-op and returns
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* the original value.
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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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if ( ! $this->is_current_blog_previewed() ) {
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return $original;
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}
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$undefined = new stdClass(); // symbol hack
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$post_value = $this->post_value( $undefined );
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if ( $undefined === $post_value ) {
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$value = $this->_original_value;
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} else {
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$value = $post_value;
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}
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return $this->multidimensional_replace( $original, $this->id_data['keys'], $value );
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}
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/**
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* Check user capabilities and theme supports, and then save
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* the value of the setting.
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*
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* @since 3.4.0
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*
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* @return false|null False if cap check fails or value isn't set.
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*/
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final public function save() {
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$value = $this->post_value();
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if ( ! $this->check_capabilities() || ! isset( $value ) )
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return false;
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/**
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* Fires when the WP_Customize_Setting::save() method is called.
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*
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* The dynamic portion of the hook name, `$this->id_data['base']` refers to
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* the base slug of the setting name.
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*
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* @since 3.4.0
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*
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* @param WP_Customize_Setting $this {@see WP_Customize_Setting} instance.
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*/
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do_action( 'customize_save_' . $this->id_data[ 'base' ], $this );
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$this->update( $value );
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}
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/**
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* Fetch and sanitize the $_POST value for the setting.
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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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final public function post_value( $default = null ) {
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return $this->manager->post_value( $this, $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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/**
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* Filter a Customize setting value in un-slashed form.
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*
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* @since 3.4.0
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*
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* @param mixed $value Value of the setting.
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* @param WP_Customize_Setting $this WP_Customize_Setting instance.
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*/
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return apply_filters( "customize_sanitize_{$this->id}", $value, $this );
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}
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/**
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* Save the value of the setting, using the related API.
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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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case 'option' :
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return $this->_update_option( $value );
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default :
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/**
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* Fires when the {@see WP_Customize_Setting::update()} method is called for settings
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* not handled as theme_mods or options.
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*
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* The dynamic portion of the hook name, `$this->type`, refers to the type of setting.
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*
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* @since 3.4.0
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*
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* @param mixed $value Value of the setting.
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* @param WP_Customize_Setting $this WP_Customize_Setting instance.
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*/
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return do_action( 'customize_update_' . $this->type, $value, $this );
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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 option from the value of the setting.
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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 bool|null 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 setting.
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*
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* @since 3.4.0
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*
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* @return mixed The value.
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*/
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public function value() {
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// Get the callback that corresponds to the setting type.
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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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$function = 'get_option';
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break;
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default :
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/**
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* Filter a Customize setting value not handled as a theme_mod or option.
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*
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* The dynamic portion of the hook name, `$this->id_date['base']`, refers to
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* the base slug of the setting name.
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*
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* For settings handled as theme_mods or options, see those corresponding
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* functions for available hooks.
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*
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* @since 3.4.0
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*
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* @param mixed $default The setting default value. Default empty.
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*/
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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' ], $this->default );
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}
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/**
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* Sanitize the setting's value for use in JavaScript.
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*
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* @since 3.4.0
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*
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* @return mixed The requested escaped value.
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*/
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public function js_value() {
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/**
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* Filter a Customize setting value for use in JavaScript.
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*
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* The dynamic portion of the hook name, `$this->id`, refers to the setting ID.
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*
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* @since 3.4.0
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*
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* @param mixed $value The setting value.
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* @param WP_Customize_Setting $this {@see WP_Customize_Setting} instance.
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*/
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$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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* Validate user capabilities whether the theme supports the setting.
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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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final public 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 ) {
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if ( ! is_array( $node ) ) {
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// account for an array overriding a string or object value
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$node = array();
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}
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if ( ! isset( $node[ $last ] ) ) {
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$node[ $last ] = array();
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}
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}
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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 mixed $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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* @since 3.4.0
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*
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* @see WP_Customize_Setting
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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.
|
|
*
|
|
* Results should be properly handled using another setting or callback.
|
|
*
|
|
* @since 3.4.0
|
|
*
|
|
* @see WP_Customize_Setting
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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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/**
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|
* @since 3.4.0
|
|
*
|
|
* @param $value
|
|
*/
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public function update( $value ) {
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global $custom_image_header;
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|
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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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|
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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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/**
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|
* Customizer Background Image Setting class.
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|
*
|
|
* @since 3.4.0
|
|
*
|
|
* @see WP_Customize_Setting
|
|
*/
|
|
final class WP_Customize_Background_Image_Setting extends WP_Customize_Setting {
|
|
public $id = 'background_image_thumb';
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|
|
/**
|
|
* @since 3.4.0
|
|
*
|
|
* @param $value
|
|
*/
|
|
public function update( $value ) {
|
|
remove_theme_mod( 'background_image_thumb' );
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|
}
|
|
}
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