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<?php
/**
 * WordPress Customize Setting classes
 *
 * @package WordPress
 * @subpackage Customize
 * @since 3.4.0
 */

/**
 * Customize Setting class.
 *
 * Handles saving and sanitizing of settings.
 *
 * @since 3.4.0
 *
 * @see WP_Customize_Manager
 */
class WP_Customize_Setting {
	/**
	 * Customizer bootstrap instance.
	 *
	 * @since 3.4.0
	 * @var WP_Customize_Manager
	 */
	public $manager;

/**
	 * Unique string identifier for the setting.
	 *
	 * @since 3.4.0
	 * @var string
	 */
	public $id;

/**
	 * Type of customize settings.
	 *
	 * @since 3.4.0
	 * @var string
	 */
	public $type = 'theme_mod';

/**
	 * Capability required to edit this setting.
	 *
	 * @since 3.4.0
	 * @var string|array
	 */
	public $capability = 'edit_theme_options';

/**
	 * Feature a theme is required to support to enable this setting.
	 *
	 * @since 3.4.0
	 * @var string
	 */
	public $theme_supports = '';

/**
	 * The default value for the setting.
	 *
	 * @since 3.4.0
	 * @var string
	 */
	public $default = '';

/**
	 * Options for rendering the live preview of changes in Theme Customizer.
	 *
	 * Set this value to 'postMessage' to enable a custom Javascript handler to render changes to this setting
	 * as opposed to reloading the whole page.
	 *
	 * @link https://developer.wordpress.org/themes/customize-api
	 *
	 * @since 3.4.0
	 * @var string
	 */
	public $transport = 'refresh';

/**
	 * Server-side validation callback for the setting's value.
	 *
	 * @since 4.6.0
	 * @var callable
	 */
	public $validate_callback = '';

/**
	 * Callback to filter a Customize setting value in un-slashed form.
	 *
	 * @since 3.4.0
	 * @var callable
	 */
	public $sanitize_callback = '';

/**
	 * Callback to convert a Customize PHP setting value to a value that is JSON serializable.
	 *
	 * @since 3.4.0
	 * @var string
	 */
	public $sanitize_js_callback = '';

/**
	 * Whether or not the setting is initially dirty when created.
	 *
	 * This is used to ensure that a setting will be sent from the pane to the
	 * preview when loading the Customizer. Normally a setting only is synced to
	 * the preview if it has been changed. This allows the setting to be sent
	 * from the start.
	 *
	 * @since 4.2.0
	 * @var bool
	 */
	public $dirty = false;

/**
	 * ID Data.
	 *
	 * @since 3.4.0
	 * @var array
	 */
	protected $id_data = array();

/**
	 * Whether or not preview() was called.
	 *
	 * @since 4.4.0
	 * @var bool
	 */
	protected $is_previewed = false;

/**
	 * Cache of multidimensional values to improve performance.
	 *
	 * @since 4.4.0
	 * @static
	 * @var array
	 */
	protected static $aggregated_multidimensionals = array();

/**
	 * Whether the multidimensional setting is aggregated.
	 *
	 * @since 4.4.0
	 * @var bool
	 */
	protected $is_multidimensional_aggregated = false;

/**
	 * Constructor.
	 *
	 * Any supplied $args override class property defaults.
	 *
	 * @since 3.4.0
	 *
	 * @param WP_Customize_Manager $manager
	 * @param string               $id      An specific ID of the setting. Can be a
	 *                                      theme mod or option name.
	 * @param array                $args    Setting arguments.
	 */
	public function __construct( $manager, $id, $args = array() ) {
		$keys = array_keys( get_object_vars( $this ) );
		foreach ( $keys as $key ) {
			if ( isset( $args[ $key ] ) ) {
				$this->$key = $args[ $key ];
			}
		}

$this->manager = $manager;
		$this->id = $id;

// Parse the ID for array keys.
		$this->id_data['keys'] = preg_split( '/\[/', str_replace( ']', '', $this->id ) );
		$this->id_data['base'] = array_shift( $this->id_data['keys'] );

// Rebuild the ID.
		$this->id = $this->id_data[ 'base' ];
		if ( ! empty( $this->id_data[ 'keys' ] ) ) {
			$this->id .= '[' . implode( '][', $this->id_data['keys'] ) . ']';
		}

if ( $this->validate_callback ) {
			add_filter( "customize_validate_{$this->id}", $this->validate_callback, 10, 3 );
		}
		if ( $this->sanitize_callback ) {
			add_filter( "customize_sanitize_{$this->id}", $this->sanitize_callback, 10, 2 );
		}
		if ( $this->sanitize_js_callback ) {
			add_filter( "customize_sanitize_js_{$this->id}", $this->sanitize_js_callback, 10, 2 );
		}

if ( 'option' === $this->type || 'theme_mod' === $this->type ) {
			// Other setting types can opt-in to aggregate multidimensional explicitly.
			$this->aggregate_multidimensional();

// Allow option settings to indicate whether they should be autoloaded.
			if ( 'option' === $this->type && isset( $args['autoload'] ) ) {
				self::$aggregated_multidimensionals[ $this->type ][ $this->id_data['base'] ]['autoload'] = $args['autoload'];
			}
		}
	}

/**
	 * Get parsed ID data for multidimensional setting.
	 *
	 * @since 4.4.0
	 *
	 * @return array {
	 *     ID data for multidimensional setting.
	 *
	 *     @type string $base ID base
	 *     @type array  $keys Keys for multidimensional array.
	 * }
	 */
	final public function id_data() {
		return $this->id_data;
	}

/**
	 * Set up the setting for aggregated multidimensional values.
	 *
	 * When a multidimensional setting gets aggregated, all of its preview and update
	 * calls get combined into one call, greatly improving performance.
	 *
	 * @since 4.4.0
	 */
	protected function aggregate_multidimensional() {
		$id_base = $this->id_data['base'];
		if ( ! isset( self::$aggregated_multidimensionals[ $this->type ] ) ) {
			self::$aggregated_multidimensionals[ $this->type ] = array();
		}
		if ( ! isset( self::$aggregated_multidimensionals[ $this->type ][ $id_base ] ) ) {
			self::$aggregated_multidimensionals[ $this->type ][ $id_base ] = array(
				'previewed_instances'       => array(), // Calling preview() will add the $setting to the array.
				'preview_applied_instances' => array(), // Flags for which settings have had their values applied.
				'root_value'                => $this->get_root_value( array() ), // Root value for initial state, manipulated by preview and update calls.
			);
		}

if ( ! empty( $this->id_data['keys'] ) ) {
			// Note the preview-applied flag is cleared at priority 9 to ensure it is cleared before a deferred-preview runs.
			add_action( "customize_post_value_set_{$this->id}", array( $this, '_clear_aggregated_multidimensional_preview_applied_flag' ), 9 );
			$this->is_multidimensional_aggregated = true;
		}
	}

/**
	 * Reset `$aggregated_multidimensionals` static variable.
	 *
	 * This is intended only for use by unit tests.
	 *
	 * @since 4.5.0
	 * @ignore
	 */
	static public function reset_aggregated_multidimensionals() {
		self::$aggregated_multidimensionals = array();
	}

/**
	 * The ID for the current site when the preview() method was called.
	 *
	 * @since 4.2.0
	 * @var int
	 */
	protected $_previewed_blog_id;

/**
	 * Return true if the current site is not the same as the previewed site.
	 *
	 * @since 4.2.0
	 *
	 * @return bool If preview() has been called.
	 */
	public function is_current_blog_previewed() {
		if ( ! isset( $this->_previewed_blog_id ) ) {
			return false;
		}
		return ( get_current_blog_id() === $this->_previewed_blog_id );
	}

/**
	 * Original non-previewed value stored by the preview method.
	 *
	 * @see WP_Customize_Setting::preview()
	 * @since 4.1.1
	 * @var mixed
	 */
	protected $_original_value;

/**
	 * Add filters to supply the setting's value when accessed.
	 *
	 * If the setting already has a pre-existing value and there is no incoming
	 * post value for the setting, then this method will short-circuit since
	 * there is no change to preview.
	 *
	 * @since 3.4.0
	 * @since 4.4.0 Added boolean return value.
	 *
	 * @return bool False when preview short-circuits due no change needing to be previewed.
	 */
	public function preview() {
		if ( ! isset( $this->_previewed_blog_id ) ) {
			$this->_previewed_blog_id = get_current_blog_id();
		}

// Prevent re-previewing an already-previewed setting.
		if ( $this->is_previewed ) {
			return true;
		}

$id_base = $this->id_data['base'];
		$is_multidimensional = ! empty( $this->id_data['keys'] );
		$multidimensional_filter = array( $this, '_multidimensional_preview_filter' );

/*
		 * Check if the setting has a pre-existing value (an isset check),
		 * and if doesn't have any incoming post value. If both checks are true,
		 * then the preview short-circuits because there is nothing that needs
		 * to be previewed.
		 */
		$undefined = new stdClass();
		$needs_preview = ( $undefined !== $this->post_value( $undefined ) );
		$value = null;

// Since no post value was defined, check if we have an initial value set.
		if ( ! $needs_preview ) {
			if ( $this->is_multidimensional_aggregated ) {
				$root = self::$aggregated_multidimensionals[ $this->type ][ $id_base ]['root_value'];
				$value = $this->multidimensional_get( $root, $this->id_data['keys'], $undefined );
			} else {
				$default = $this->default;
				$this->default = $undefined; // Temporarily set default to undefined so we can detect if existing value is set.
				$value = $this->value();
				$this->default = $default;
			}
			$needs_preview = ( $undefined === $value ); // Because the default needs to be supplied.
		}

// If the setting does not need previewing now, defer to when it has a value to preview.
		if ( ! $needs_preview ) {
			if ( ! has_action( "customize_post_value_set_{$this->id}", array( $this, 'preview' ) ) ) {
				add_action( "customize_post_value_set_{$this->id}", array( $this, 'preview' ) );
			}
			return false;
		}

switch ( $this->type ) {
			case 'theme_mod' :
				if ( ! $is_multidimensional ) {
					add_filter( "theme_mod_{$id_base}", array( $this, '_preview_filter' ) );
				} else {
					if ( empty( self::$aggregated_multidimensionals[ $this->type ][ $id_base ]['previewed_instances'] ) ) {
						// Only add this filter once for this ID base.
						add_filter( "theme_mod_{$id_base}", $multidimensional_filter );
					}
					self::$aggregated_multidimensionals[ $this->type ][ $id_base ]['previewed_instances'][ $this->id ] = $this;
				}
				break;
			case 'option' :
				if ( ! $is_multidimensional ) {
					add_filter( "pre_option_{$id_base}", array( $this, '_preview_filter' ) );
				} else {
					if ( empty( self::$aggregated_multidimensionals[ $this->type ][ $id_base ]['previewed_instances'] ) ) {
						// Only add these filters once for this ID base.
						add_filter( "option_{$id_base}", $multidimensional_filter );
						add_filter( "default_option_{$id_base}", $multidimensional_filter );
					}
					self::$aggregated_multidimensionals[ $this->type ][ $id_base ]['previewed_instances'][ $this->id ] = $this;
				}
				break;
			default :

/**
				 * Fires when the WP_Customize_Setting::preview() method is called for settings
				 * not handled as theme_mods or options.
				 *
				 * The dynamic portion of the hook name, `$this->id`, refers to the setting ID.
				 *
				 * @since 3.4.0
				 *
				 * @param WP_Customize_Setting $this WP_Customize_Setting instance.
				 */
				do_action( "customize_preview_{$this->id}", $this );

/**
				 * Fires when the WP_Customize_Setting::preview() method is called for settings
				 * not handled as theme_mods or options.
				 *
				 * The dynamic portion of the hook name, `$this->type`, refers to the setting type.
				 *
				 * @since 4.1.0
				 *
				 * @param WP_Customize_Setting $this WP_Customize_Setting instance.
				 */
				do_action( "customize_preview_{$this->type}", $this );
		}

$this->is_previewed = true;

return true;
	}

/**
	 * Clear out the previewed-applied flag for a multidimensional-aggregated value whenever its post value is updated.
	 *
	 * This ensures that the new value will get sanitized and used the next time
	 * that `WP_Customize_Setting::_multidimensional_preview_filter()`
	 * is called for this setting.
	 *
	 * @since 4.4.0
	 *
	 * @see WP_Customize_Manager::set_post_value()
	 * @see WP_Customize_Setting::_multidimensional_preview_filter()
	 */
	final public function _clear_aggregated_multidimensional_preview_applied_flag() {
		unset( self::$aggregated_multidimensionals[ $this->type ][ $this->id_data['base'] ]['preview_applied_instances'][ $this->id ] );
	}

/**
	 * Callback function to filter non-multidimensional theme mods and options.
	 *
	 * If switch_to_blog() was called after the preview() method, and the current
	 * site is now not the same site, then this method does a no-op and returns
	 * the original value.
	 *
	 * @since 3.4.0
	 *
	 * @param mixed $original Old value.
	 * @return mixed New or old value.
	 */
	public function _preview_filter( $original ) {
		if ( ! $this->is_current_blog_previewed() ) {
			return $original;
		}

$undefined = new stdClass(); // Symbol hack.
		$post_value = $this->post_value( $undefined );
		if ( $undefined !== $post_value ) {
			$value = $post_value;
		} else {
			/*
			 * Note that we don't use $original here because preview() will
			 * not add the filter in the first place if it has an initial value
			 * and there is no post value.
			 */
			$value = $this->default;
		}
		return $value;
	}

/**
	 * Callback function to filter multidimensional theme mods and options.
	 *
	 * For all multidimensional settings of a given type, the preview filter for
	 * the first setting previewed will be used to apply the values for the others.
	 *
	 * @since 4.4.0
	 *
	 * @see WP_Customize_Setting::$aggregated_multidimensionals
	 * @param mixed $original Original root value.
	 * @return mixed New or old value.
	 */
	final public function _multidimensional_preview_filter( $original ) {
		if ( ! $this->is_current_blog_previewed() ) {
			return $original;
		}

$id_base = $this->id_data['base'];

// If no settings have been previewed yet (which should not be the case, since $this is), just pass through the original value.
		if ( empty( self::$aggregated_multidimensionals[ $this->type ][ $id_base ]['previewed_instances'] ) ) {
			return $original;
		}

foreach ( self::$aggregated_multidimensionals[ $this->type ][ $id_base ]['previewed_instances'] as $previewed_setting ) {
			// Skip applying previewed value for any settings that have already been applied.
			if ( ! empty( self::$aggregated_multidimensionals[ $this->type ][ $id_base ]['preview_applied_instances'][ $previewed_setting->id ] ) ) {
				continue;
			}

// Do the replacements of the posted/default sub value into the root value.
			$value = $previewed_setting->post_value( $previewed_setting->default );
			$root = self::$aggregated_multidimensionals[ $previewed_setting->type ][ $id_base ]['root_value'];
			$root = $previewed_setting->multidimensional_replace( $root, $previewed_setting->id_data['keys'], $value );
			self::$aggregated_multidimensionals[ $previewed_setting->type ][ $id_base ]['root_value'] = $root;

// Mark this setting having been applied so that it will be skipped when the filter is called again.
			self::$aggregated_multidimensionals[ $previewed_setting->type ][ $id_base ]['preview_applied_instances'][ $previewed_setting->id ] = true;
		}

return self::$aggregated_multidimensionals[ $this->type ][ $id_base ]['root_value'];
	}

/**
	 * Checks user capabilities and theme supports, and then saves
	 * the value of the setting.
	 *
	 * @since 3.4.0
	 *
	 * @return false|void False if cap check fails or value isn't set or is invalid.
	 */
	final public function save() {
		$value = $this->post_value();

if ( ! $this->check_capabilities() || ! isset( $value ) ) {
			return false;
		}

$id_base = $this->id_data['base'];

/**
		 * Fires when the WP_Customize_Setting::save() method is called.
		 *
		 * The dynamic portion of the hook name, `$id_base` refers to
		 * the base slug of the setting name.
		 *
		 * @since 3.4.0
		 *
		 * @param WP_Customize_Setting $this WP_Customize_Setting instance.
		 */
		do_action( "customize_save_{$id_base}", $this );

$this->update( $value );
	}

/**
	 * Fetch and sanitize the $_POST value for the setting.
	 *
	 * During a save request prior to save, post_value() provides the new value while value() does not.
	 *
	 * @since 3.4.0
	 *
	 * @param mixed $default A default value which is used as a fallback. Default is null.
	 * @return mixed The default value on failure, otherwise the sanitized and validated value.
	 */
	final public function post_value( $default = null ) {
		return $this->manager->post_value( $this, $default );
	}

/**
	 * Sanitize an input.
	 *
	 * @since 3.4.0
	 *
	 * @param string|array $value    The value to sanitize.
	 * @return string|array|null|WP_Error Sanitized value, or `null`/`WP_Error` if invalid.
	 */
	public function sanitize( $value ) {

/**
		 * Filters a Customize setting value in un-slashed form.
		 *
		 * @since 3.4.0
		 *
		 * @param mixed                $value Value of the setting.
		 * @param WP_Customize_Setting $this  WP_Customize_Setting instance.
		 */
		return apply_filters( "customize_sanitize_{$this->id}", $value, $this );
	}

/**
	 * Validates an input.
	 *
	 * @since 4.6.0
	 *
	 * @see WP_REST_Request::has_valid_params()
	 *
	 * @param mixed $value Value to validate.
	 * @return true|WP_Error True if the input was validated, otherwise WP_Error.
	 */
	public function validate( $value ) {
		if ( is_wp_error( $value ) ) {
			return $value;
		}
		if ( is_null( $value ) ) {
			return new WP_Error( 'invalid_value', __( 'Invalid value.' ) );
		}

$validity = new WP_Error();

/**
		 * Validates a Customize setting value.
		 *
		 * Plugins should amend the `$validity` object via its `WP_Error::add()` method.
		 *
		 * The dynamic portion of the hook name, `$this->ID`, refers to the setting ID.
		 *
		 * @since 4.6.0
		 *
		 * @param WP_Error             $validity Filtered from `true` to `WP_Error` when invalid.
		 * @param mixed                $value    Value of the setting.
		 * @param WP_Customize_Setting $this     WP_Customize_Setting instance.
		 */
		$validity = apply_filters( "customize_validate_{$this->id}", $validity, $value, $this );

if ( is_wp_error( $validity ) && empty( $validity->errors ) ) {
			$validity = true;
		}
		return $validity;
	}

/**
	 * Get the root value for a setting, especially for multidimensional ones.
	 *
	 * @since 4.4.0
	 *
	 * @param mixed $default Value to return if root does not exist.
	 * @return mixed
	 */
	protected function get_root_value( $default = null ) {
		$id_base = $this->id_data['base'];
		if ( 'option' === $this->type ) {
			return get_option( $id_base, $default );
		} elseif ( 'theme_mod' === $this->type ) {
			return get_theme_mod( $id_base, $default );
		} else {
			/*
			 * Any WP_Customize_Setting subclass implementing aggregate multidimensional
			 * will need to override this method to obtain the data from the appropriate
			 * location.
			 */
			return $default;
		}
	}

/**
	 * Set the root value for a setting, especially for multidimensional ones.
	 *
	 * @since 4.4.0
	 *
	 * @param mixed $value Value to set as root of multidimensional setting.
	 * @return bool Whether the multidimensional root was updated successfully.
	 */
	protected function set_root_value( $value ) {
		$id_base = $this->id_data['base'];
		if ( 'option' === $this->type ) {
			$autoload = true;
			if ( isset( self::$aggregated_multidimensionals[ $this->type ][ $this->id_data['base'] ]['autoload'] ) ) {
				$autoload = self::$aggregated_multidimensionals[ $this->type ][ $this->id_data['base'] ]['autoload'];
			}
			return update_option( $id_base, $value, $autoload );
		} elseif ( 'theme_mod' === $this->type ) {
			set_theme_mod( $id_base, $value );
			return true;
		} else {
			/*
			 * Any WP_Customize_Setting subclass implementing aggregate multidimensional
			 * will need to override this method to obtain the data from the appropriate
			 * location.
			 */
			return false;
		}
	}

/**
	 * Save the value of the setting, using the related API.
	 *
	 * @since 3.4.0
	 *
	 * @param mixed $value The value to update.
	 * @return bool The result of saving the value.
	 */
	protected function update( $value ) {
		$id_base = $this->id_data['base'];
		if ( 'option' === $this->type || 'theme_mod' === $this->type ) {
			if ( ! $this->is_multidimensional_aggregated ) {
				return $this->set_root_value( $value );
			} else {
				$root = self::$aggregated_multidimensionals[ $this->type ][ $id_base ]['root_value'];
				$root = $this->multidimensional_replace( $root, $this->id_data['keys'], $value );
				self::$aggregated_multidimensionals[ $this->type ][ $id_base ]['root_value'] = $root;
				return $this->set_root_value( $root );
			}
		} else {
			/**
			 * Fires when the WP_Customize_Setting::update() method is called for settings
			 * not handled as theme_mods or options.
			 *
			 * The dynamic portion of the hook name, `$this->type`, refers to the type of setting.
			 *
			 * @since 3.4.0
			 *
			 * @param mixed                $value Value of the setting.
			 * @param WP_Customize_Setting $this  WP_Customize_Setting instance.
			 */
			do_action( "customize_update_{$this->type}", $value, $this );

return has_action( "customize_update_{$this->type}" );
		}
	}

/**
	 * Deprecated method.
	 *
	 * @since 3.4.0
	 * @deprecated 4.4.0 Deprecated in favor of update() method.
	 */
	protected function _update_theme_mod() {
		_deprecated_function( __METHOD__, '4.4.0', __CLASS__ . '::update()' );
	}

/**
	 * Deprecated method.
	 *
	 * @since 3.4.0
	 * @deprecated 4.4.0 Deprecated in favor of update() method.
	 */
	protected function _update_option() {
		_deprecated_function( __METHOD__, '4.4.0', __CLASS__ . '::update()' );
	}

/**
	 * Fetch the value of the setting.
	 *
	 * @since 3.4.0
	 *
	 * @return mixed The value.
	 */
	public function value() {
		$id_base = $this->id_data['base'];
		$is_core_type = ( 'option' === $this->type || 'theme_mod' === $this->type );

if ( ! $is_core_type && ! $this->is_multidimensional_aggregated ) {

// Use post value if previewed and a post value is present.
			if ( $this->is_previewed ) {
				$value = $this->post_value( null );
				if ( null !== $value ) {
					return $value;
				}
			}

$value = $this->get_root_value( $this->default );

/**
			 * Filters a Customize setting value not handled as a theme_mod or option.
			 *
			 * The dynamic portion of the hook name, `$id_base`, refers to
			 * the base slug of the setting name, initialized from `$this->id_data['base']`.
			 *
			 * For settings handled as theme_mods or options, see those corresponding
			 * functions for available hooks.
			 *
			 * @since 3.4.0
			 * @since 4.6.0 Added the `$this` setting instance as the second parameter.
			 *
			 * @param mixed                $default The setting default value. Default empty.
			 * @param WP_Customize_Setting $this    The setting instance.
			 */
			$value = apply_filters( "customize_value_{$id_base}", $value, $this );
		} elseif ( $this->is_multidimensional_aggregated ) {
			$root_value = self::$aggregated_multidimensionals[ $this->type ][ $id_base ]['root_value'];
			$value = $this->multidimensional_get( $root_value, $this->id_data['keys'], $this->default );

// Ensure that the post value is used if the setting is previewed, since preview filters aren't applying on cached $root_value.
			if ( $this->is_previewed ) {
				$value = $this->post_value( $value );
			}
		} else {
			$value = $this->get_root_value( $this->default );
		}
		return $value;
	}

/**
	 * Sanitize the setting's value for use in JavaScript.
	 *
	 * @since 3.4.0
	 *
	 * @return mixed The requested escaped value.
	 */
	public function js_value() {

/**
		 * Filters a Customize setting value for use in JavaScript.
		 *
		 * The dynamic portion of the hook name, `$this->id`, refers to the setting ID.
		 *
		 * @since 3.4.0
		 *
		 * @param mixed                $value The setting value.
		 * @param WP_Customize_Setting $this  WP_Customize_Setting instance.
		 */
		$value = apply_filters( "customize_sanitize_js_{$this->id}", $this->value(), $this );

if ( is_string( $value ) )
			return html_entity_decode( $value, ENT_QUOTES, 'UTF-8');

return $value;
	}

/**
	 * Retrieves the data to export to the client via JSON.
	 *
	 * @since 4.6.0
	 *
	 * @return array Array of parameters passed to JavaScript.
	 */
	public function json() {
		return array(
			'value'     => $this->js_value(),
			'transport' => $this->transport,
			'dirty'     => $this->dirty,
			'type'      => $this->type,
		);
	}

/**
	 * Validate user capabilities whether the theme supports the setting.
	 *
	 * @since 3.4.0
	 *
	 * @return bool False if theme doesn't support the setting or user can't change setting, otherwise true.
	 */
	final public function check_capabilities() {
		if ( $this->capability && ! call_user_func_array( 'current_user_can', (array) $this->capability ) )
			return false;

if ( $this->theme_supports && ! call_user_func_array( 'current_theme_supports', (array) $this->theme_supports ) )
			return false;

return true;
	}

/**
	 * Multidimensional helper function.
	 *
	 * @since 3.4.0
	 *
	 * @param $root
	 * @param $keys
	 * @param bool $create Default is false.
	 * @return array|void Keys are 'root', 'node', and 'key'.
	 */
	final protected function multidimensional( &$root, $keys, $create = false ) {
		if ( $create && empty( $root ) )
			$root = array();

if ( ! isset( $root ) || empty( $keys ) )
			return;

$last = array_pop( $keys );
		$node = &$root;

foreach ( $keys as $key ) {
			if ( $create && ! isset( $node[ $key ] ) )
				$node[ $key ] = array();

if ( ! is_array( $node ) || ! isset( $node[ $key ] ) )
				return;

$node = &$node[ $key ];
		}

if ( $create ) {
			if ( ! is_array( $node ) ) {
				// account for an array overriding a string or object value
				$node = array();
			}
			if ( ! isset( $node[ $last ] ) ) {
				$node[ $last ] = array();
			}
		}

if ( ! isset( $node[ $last ] ) )
			return;

return array(
			'root' => &$root,
			'node' => &$node,
			'key'  => $last,
		);
	}

/**
	 * Will attempt to replace a specific value in a multidimensional array.
	 *
	 * @since 3.4.0
	 *
	 * @param $root
	 * @param $keys
	 * @param mixed $value The value to update.
	 * @return mixed
	 */
	final protected function multidimensional_replace( $root, $keys, $value ) {
		if ( ! isset( $value ) )
			return $root;
		elseif ( empty( $keys ) ) // If there are no keys, we're replacing the root.
			return $value;

$result = $this->multidimensional( $root, $keys, true );

if ( isset( $result ) )
			$result['node'][ $result['key'] ] = $value;

return $root;
	}

/**
	 * Will attempt to fetch a specific value from a multidimensional array.
	 *
	 * @since 3.4.0
	 *
	 * @param $root
	 * @param $keys
	 * @param mixed $default A default value which is used as a fallback. Default is null.
	 * @return mixed The requested value or the default value.
	 */
	final protected function multidimensional_get( $root, $keys, $default = null ) {
		if ( empty( $keys ) ) // If there are no keys, test the root.
			return isset( $root ) ? $root : $default;

$result = $this->multidimensional( $root, $keys );
		return isset( $result ) ? $result['node'][ $result['key'] ] : $default;
	}

/**
	 * Will attempt to check if a specific value in a multidimensional array is set.
	 *
	 * @since 3.4.0
	 *
	 * @param $root
	 * @param $keys
	 * @return bool True if value is set, false if not.
	 */
	final protected function multidimensional_isset( $root, $keys ) {
		$result = $this->multidimensional_get( $root, $keys );
		return isset( $result );
	}
}

/**
 * WP_Customize_Filter_Setting class.
 */
require_once( ABSPATH . WPINC . '/customize/class-wp-customize-filter-setting.php' );

/**
 * WP_Customize_Header_Image_Setting class.
 */
require_once( ABSPATH . WPINC . '/customize/class-wp-customize-header-image-setting.php' );

/**
 * WP_Customize_Background_Image_Setting class.
 */
require_once( ABSPATH . WPINC . '/customize/class-wp-customize-background-image-setting.php' );

/**
 * WP_Customize_Nav_Menu_Item_Setting class.
 */
require_once( ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-item-setting.php' );

/**
 * WP_Customize_Nav_Menu_Setting class.
 */
require_once( ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-setting.php' );

Nama File / Folder	Size	Action
ID3	--	NONE
IXR	--	NONE
Requests	--	NONE
SimplePie	--	NONE
Text	--	NONE
certificates	--	NONE
css	--	NONE
customize	--	NONE
fonts	--	NONE
images	--	NONE
js	--	NONE
pomo	--	NONE
random_compat	--	NONE
rest-api	--	NONE
theme-compat	--	NONE
widgets	--	NONE
admin-bar.php	27.979KB	Edit File Delete File Rename
atomlib.php	11.562KB	Edit File Delete File Rename
author-template.php	15.745KB	Edit File Delete File Rename
bookmark-template.php	11.425KB	Edit File Delete File Rename
bookmark.php	13.352KB	Edit File Delete File Rename
cache.php	21.095KB	Edit File Delete File Rename
canonical.php	26.937KB	Edit File Delete File Rename
capabilities.php	27.153KB	Edit File Delete File Rename
category-template.php	50.121KB	Edit File Delete File Rename
category.php	11.703KB	Edit File Delete File Rename
class-IXR.php	2.513KB	Edit File Delete File Rename
class-feed.php	0.51KB	Edit File Delete File Rename
class-http.php	35.316KB	Edit File Delete File Rename
class-json.php	39.523KB	Edit File Delete File Rename
class-oembed.php	32.336KB	Edit File Delete File Rename
class-phpass-set.php	0.978KB	Edit File Delete File Rename
class-phpass.php	7.146KB	Edit File Delete File Rename
class-phpmailer.php	143.344KB	Edit File Delete File Rename
class-pop3.php	20.429KB	Edit File Delete File Rename
class-requests.php	29.092KB	Edit File Delete File Rename
class-simplepie.php	87.172KB	Edit File Delete File Rename
class-smtp.php	38.553KB	Edit File Delete File Rename
class-snoopy.php	36.899KB	Edit File Delete File Rename
class-walker-category-dropdown.php	2.05KB	Edit File Delete File Rename
class-walker-category.php	6.485KB	Edit File Delete File Rename
class-walker-comment.php	10.911KB	Edit File Delete File Rename
class-walker-nav-menu.php	8.195KB	Edit File Delete File Rename
class-walker-page-dropdown.php	2.226KB	Edit File Delete File Rename
class-walker-page.php	6.556KB	Edit File Delete File Rename
class-wp-admin-bar.php	16.571KB	Edit File Delete File Rename
class-wp-ajax-response.php	4.906KB	Edit File Delete File Rename
class-wp-comment-query.php	40.765KB	Edit File Delete File Rename
class-wp-comment.php	8.727KB	Edit File Delete File Rename
class-wp-customize-control.php	24.398KB	Edit File Delete File Rename
class-wp-customize-manager.php	192.604KB	Edit File Delete File Rename
class-wp-customize-nav-menus.php	52.297KB	Edit File Delete File Rename
class-wp-customize-panel.php	9.352KB	Edit File Delete File Rename
class-wp-customize-section.php	9.958KB	Edit File Delete File Rename
class-wp-customize-setting.php	27.473KB	Edit File Delete File Rename
class-wp-dependency.php	1.514KB	Edit File Delete File Rename
class-wp-embed.php	14.169KB	Edit File Delete File Rename
class-wp-error.php	4.478KB	Edit File Delete File Rename
class-wp-feed-cache-transient.php	2.478KB	Edit File Delete File Rename
class-wp-feed-cache.php	0.728KB	Edit File Delete File Rename
class-wp-hook.php	13.723KB	Edit File Delete File Rename
class-wp-http-cookie.php	6.305KB	Edit File Delete File Rename
class-wp-http-curl.php	11.405KB	Edit File Delete File Rename
class-wp-http-ixr-client.php	3.174KB	Edit File Delete File Rename
class-wp-http-proxy.php	5.817KB	Edit File Delete File Rename
class-wp-http-requests-hooks.php	1.828KB	Edit File Delete File Rename
class-wp-http-requests-response.php	4.173KB	Edit File Delete File Rename
class-wp-http-response.php	2.804KB	Edit File Delete File Rename
class-wp-http-streams.php	14.644KB	Edit File Delete File Rename
class-wp-image-editor-gd.php	12.618KB	Edit File Delete File Rename
class-wp-image-editor-imagick.php	21.168KB	Edit File Delete File Rename
class-wp-image-editor.php	11.429KB	Edit File Delete File Rename
class-wp-list-util.php	6.22KB	Edit File Delete File Rename
class-wp-locale-switcher.php	4.94KB	Edit File Delete File Rename
class-wp-locale.php	14.206KB	Edit File Delete File Rename
class-wp-matchesmapregex.php	1.754KB	Edit File Delete File Rename
class-wp-meta-query.php	21.732KB	Edit File Delete File Rename
class-wp-metadata-lazyloader.php	5.246KB	Edit File Delete File Rename
class-wp-network-query.php	16.725KB	Edit File Delete File Rename
class-wp-network.php	11.845KB	Edit File Delete File Rename
class-wp-post-type.php	17.809KB	Edit File Delete File Rename
class-wp-post.php	6.206KB	Edit File Delete File Rename
class-wp-query.php	121.062KB	Edit File Delete File Rename
class-wp-rewrite.php	57.527KB	Edit File Delete File Rename
class-wp-role.php	2.553KB	Edit File Delete File Rename
class-wp-roles.php	7.995KB	Edit File Delete File Rename
class-wp-session-tokens.php	7.166KB	Edit File Delete File Rename
class-wp-simplepie-file.php	2.219KB	Edit File Delete File Rename
class-wp-simplepie-sanitize-kses.php	1.732KB	Edit File Delete File Rename
class-wp-site-query.php	22.644KB	Edit File Delete File Rename
class-wp-site.php	7.146KB	Edit File Delete File Rename
class-wp-tax-query.php	18.749KB	Edit File Delete File Rename
class-wp-taxonomy.php	9.759KB	Edit File Delete File Rename
class-wp-term-query.php	32.831KB	Edit File Delete File Rename
class-wp-term.php	5.149KB	Edit File Delete File Rename
class-wp-text-diff-renderer-table.php	14.838KB	Edit File Delete File Rename
class-wp-theme.php	46.757KB	Edit File Delete File Rename
class-wp-user-meta-session-tokens.php	2.848KB	Edit File Delete File Rename
class-wp-user-query.php	28.833KB	Edit File Delete File Rename
class-wp-user.php	20.194KB	Edit File Delete File Rename
class-wp-walker.php	12.088KB	Edit File Delete File Rename
class-wp-widget-factory.php	3.658KB	Edit File Delete File Rename
class-wp-widget.php	17.244KB	Edit File Delete File Rename
class-wp-xmlrpc-server.php	196.664KB	Edit File Delete File Rename
class-wp.php	23.196KB	Edit File Delete File Rename
class.wp-dependencies.php	10.923KB	Edit File Delete File Rename
class.wp-scripts.php	13.828KB	Edit File Delete File Rename
class.wp-styles.php	9.564KB	Edit File Delete File Rename
comment-template.php	85.683KB	Edit File Delete File Rename
comment.php	108.814KB	Edit File Delete File Rename
compat.php	15.846KB	Edit File Delete File Rename
cron.php	16.081KB	Edit File Delete File Rename
date.php	34.18KB	Edit File Delete File Rename
default-constants.php	9.338KB	Edit File Delete File Rename
default-filters.php	26.517KB	Edit File Delete File Rename
default-widgets.php	2.129KB	Edit File Delete File Rename
deprecated.php	110.568KB	Edit File Delete File Rename
embed-template.php	0.336KB	Edit File Delete File Rename
embed.php	43.309KB	Edit File Delete File Rename
feed-atom-comments.php	5.231KB	Edit File Delete File Rename
feed-atom.php	3.018KB	Edit File Delete File Rename
feed-rdf.php	2.607KB	Edit File Delete File Rename
feed-rss.php	1.217KB	Edit File Delete File Rename
feed-rss2-comments.php	3.969KB	Edit File Delete File Rename
feed-rss2.php	3.685KB	Edit File Delete File Rename
feed.php	19.092KB	Edit File Delete File Rename
formatting.php	260.164KB	Edit File Delete File Rename
functions.php	182.204KB	Edit File Delete File Rename
functions.wp-scripts.php	11.212KB	Edit File Delete File Rename
functions.wp-styles.php	7.891KB	Edit File Delete File Rename
general-template.php	135.77KB	Edit File Delete File Rename
http.php	21.654KB	Edit File Delete File Rename
kses.php	48.935KB	Edit File Delete File Rename
l10n.php	42.46KB	Edit File Delete File Rename
link-template.php	133.086KB	Edit File Delete File Rename
load.php	33.112KB	Edit File Delete File Rename
locale.php	0.138KB	Edit File Delete File Rename
media-template.php	45.033KB	Edit File Delete File Rename
media.php	137.07KB	Edit File Delete File Rename
meta.php	36.598KB	Edit File Delete File Rename
ms-blogs.php	38.263KB	Edit File Delete File Rename
ms-default-constants.php	4.604KB	Edit File Delete File Rename
ms-default-filters.php	4.544KB	Edit File Delete File Rename
ms-deprecated.php	15.317KB	Edit File Delete File Rename
ms-files.php	2.559KB	Edit File Delete File Rename
ms-functions.php	88.995KB	Edit File Delete File Rename
ms-load.php	18.797KB	Edit File Delete File Rename
ms-settings.php	3.992KB	Edit File Delete File Rename
nav-menu-template.php	20.382KB	Edit File Delete File Rename
nav-menu.php	38.6KB	Edit File Delete File Rename
option.php	66.156KB	Edit File Delete File Rename
pluggable-deprecated.php	6.115KB	Edit File Delete File Rename
pluggable.php	89.844KB	Edit File Delete File Rename
plugin.php	30.935KB	Edit File Delete File Rename
post-formats.php	6.813KB	Edit File Delete File Rename
post-template.php	57.349KB	Edit File Delete File Rename
post-thumbnail-template.php	8.023KB	Edit File Delete File Rename
post.php	212.527KB	Edit File Delete File Rename
query.php	25.017KB	Edit File Delete File Rename
registration-functions.php	0.174KB	Edit File Delete File Rename
registration.php	0.174KB	Edit File Delete File Rename
rest-api-exception.php	4.179KB	Edit File Delete File Rename
rest-api.php	37.63KB	Edit File Delete File Rename
revision.php	20.806KB	Edit File Delete File Rename
rewrite.php	17.092KB	Edit File Delete File Rename
rss-functions.php	0.187KB	Edit File Delete File Rename
rss.php	22.664KB	Edit File Delete File Rename
script-loader.php	78.28KB	Edit File Delete File Rename
session.php	0.236KB	Edit File Delete File Rename
shortcodes.php	19.962KB	Edit File Delete File Rename
spl-autoload-compat.php	2.514KB	Edit File Delete File Rename
taxonomy.php	145.88KB	Edit File Delete File Rename
template-loader.php	2.828KB	Edit File Delete File Rename
template.php	19.328KB	Edit File Delete File Rename
theme.php	97.438KB	Edit File Delete File Rename
update.php	24.112KB	Edit File Delete File Rename
user.php	116.401KB	Edit File Delete File Rename
vars.php	5.451KB	Edit File Delete File Rename
version.php	0.604KB	Edit File Delete File Rename
widgets.php	54.112KB	Edit File Delete File Rename
wlwmanifest.xml	1.021KB	Edit File Delete File Rename
wp-db.php	97.143KB	Edit File Delete File Rename