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380985868b
git-svn-id: http://svn.automattic.com/wordpress/trunk@20120 1a063a9b-81f0-0310-95a4-ce76da25c4cd
498 lines
12 KiB
PHP
498 lines
12 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 $id;
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public $priority = 10;
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public $section = '';
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public $label = '';
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public $control = 'text';
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public $type = 'theme_mod';
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public $choices = array();
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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 $sanitize_callback = '';
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protected $id_data = array();
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private $_post_value; // Cached, sanitized $_POST value.
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// Prefix for $_POST values to prevent naming conflicts.
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const name_prefix = 'customize_';
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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 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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function __construct( $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->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 );
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return $this;
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}
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/**
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* Enqueue setting related scripts/styles.
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*
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* @since 3.4.0
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*/
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public function enqueue() {
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switch( $this->control ) {
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case 'color':
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wp_enqueue_script( 'farbtastic' );
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wp_enqueue_style( 'farbtastic' );
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break;
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}
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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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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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*
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* @param mixed 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 $default mixed A default value which is used as a fallback. Default is null.
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* @return mixed Either the default value on failure or 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 $this->_post_value;
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$base = self::name_prefix . $this->id_data[ 'base' ];
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if ( ! isset( $_POST[ $base ] ) )
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return $default;
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$result = $this->multidimensional_get( $_POST[ $base ], $this->id_data[ 'keys' ] );
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if ( ! isset( $result ) )
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return $default;
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$result = $this->sanitize( $result );
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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 $value mixed 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 = stripslashes_deep( $value );
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return apply_filters( "customize_sanitize_{$this->id}", $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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* @param $value mixed 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 $value mixed 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 $value mixed 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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* 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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global $customize;
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if ( ! $this->capability || ! current_user_can( $this->capability ) )
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return false;
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if ( $this->theme_supports && ! current_theme_supports( $this->theme_supports ) )
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return false;
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$section = $customize->get_section( $this->section );
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if ( isset( $section ) && ! $section->check_capabilities() )
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return false;
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return true;
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}
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/**
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* Render the control.
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*
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* @since 3.4.0
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*/
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public final function _render() {
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if ( ! $this->check_capabilities() )
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return;
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do_action( 'customize_render_' . $this->id );
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$this->render();
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}
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/**
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* Render the control.
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*
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* @since 3.4.0
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*/
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protected function render() {
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$this->_render_type();
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}
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/**
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* Retrieve the name attribute for an input.
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*
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* @since 3.4.0
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*
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* @return string The name.
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*/
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public final function get_name() {
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return self::name_prefix . esc_attr( $this->id );
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}
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/**
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* Echo the HTML name attribute for an input.
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*
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* @since 3.4.0
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*
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* @return string The HTML name attribute.
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*/
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public final function name() {
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echo 'name="' . $this->get_name() . '"';
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}
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/**
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* Render the control type.
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*
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* @todo Improve value and checked attributes.
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*
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* @since 3.4.0
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*/
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public final function _render_type() {
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switch( $this->control ) {
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case 'text':
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?>
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<label><?php echo esc_html( $this->label ); ?><br/>
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<input type="text" value="<?php echo esc_attr( $this->value() ); ?>" <?php $this->name(); ?> />
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</label>
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<?php
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break;
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case 'color':
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?>
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<label>
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<span><?php echo esc_html( $this->label ); ?></span>
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<div class="color-picker">
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<input class="color-picker-value" type="hidden" value="<?php echo esc_attr( $this->value() ); ?>" <?php $this->name(); ?> />
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<a href="#"></a>
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<div class="color-picker-controls">
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<div class="farbtastic-placeholder"></div>
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<span>#</span>
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<input type="text" />
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</div>
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</div>
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</label>
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<?php
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break;
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case 'checkbox':
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?>
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<label>
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<input type="checkbox" value="<?php echo esc_attr( $this->value() ); ?>" <?php $this->name(); checked( $this->value() ); ?> />
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<?php echo esc_html( $this->label ); ?>
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</label>
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<?php
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break;
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case 'radio':
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if ( empty( $this->choices ) )
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return;
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echo esc_html( $this->label ) . '<br/>';
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foreach ( $this->choices as $value => $label ) :
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?>
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<label>
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<input type="radio" value="<?php echo esc_attr( $value ); ?>" <?php $this->name(); checked( $this->value(), $value ); ?> />
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<?php echo esc_html( $label ); ?><br/>
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</label>
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<?php
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endforeach;
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break;
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case 'select':
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if ( empty( $this->choices ) )
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return;
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?>
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<label><?php echo esc_html( $this->label ); ?><br/>
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<select <?php $this->name(); ?>>
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<?php
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foreach ( $this->choices as $value => $label )
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echo '<option value="' . esc_attr( $value ) . '"' . selected( $this->value(), $value, false ) . '>' . $label . '</option>';
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?>
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</select>
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<?php
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break;
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default:
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do_action( 'customize_render_control-' . $this->control, $this );
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}
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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
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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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