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aaf99e6913
WordPress' code just... wasn't. This is now dealt with. Props jrf, pento, netweb, GaryJ, jdgrimes, westonruter, Greg Sherwood from PHPCS, and everyone who's ever contributed to WPCS and PHPCS. Fixes #41057. Built from https://develop.svn.wordpress.org/trunk@42343 git-svn-id: http://core.svn.wordpress.org/trunk@42172 1a063a9b-81f0-0310-95a4-ce76da25c4cd
312 lines
8.6 KiB
PHP
312 lines
8.6 KiB
PHP
<?php
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/**
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* Customize API: WP_Customize_Partial class
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*
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* @package WordPress
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* @subpackage Customize
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* @since 4.5.0
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*/
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/**
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* Core Customizer class for implementing selective refresh partials.
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*
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* Representation of a rendered region in the previewed page that gets
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* selectively refreshed when an associated setting is changed.
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* This class is analogous of WP_Customize_Control.
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*
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* @since 4.5.0
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*/
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class WP_Customize_Partial {
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/**
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* Component.
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*
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* @since 4.5.0
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* @var WP_Customize_Selective_Refresh
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*/
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public $component;
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/**
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* Unique identifier for the partial.
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*
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* If the partial is used to display a single setting, this would generally
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* be the same as the associated setting's ID.
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*
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* @since 4.5.0
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* @var string
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*/
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public $id;
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/**
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* Parsed ID.
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*
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* @since 4.5.0
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* @var array {
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* @type string $base ID base.
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* @type array $keys Keys for multidimensional.
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* }
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*/
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protected $id_data = array();
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/**
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* Type of this partial.
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*
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* @since 4.5.0
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* @var string
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*/
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public $type = 'default';
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/**
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* The jQuery selector to find the container element for the partial.
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*
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* @since 4.5.0
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* @var string
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*/
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public $selector;
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/**
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* IDs for settings tied to the partial.
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*
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* @since 4.5.0
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* @var array
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*/
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public $settings;
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/**
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* The ID for the setting that this partial is primarily responsible for rendering.
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*
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* If not supplied, it will default to the ID of the first setting.
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*
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* @since 4.5.0
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* @var string
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*/
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public $primary_setting;
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/**
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* Capability required to edit this partial.
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*
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* Normally this is empty and the capability is derived from the capabilities
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* of the associated `$settings`.
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*
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* @since 4.5.0
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* @var string
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*/
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public $capability;
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/**
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* Render callback.
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*
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* @since 4.5.0
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* @see WP_Customize_Partial::render()
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* @var callable Callback is called with one argument, the instance of
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* WP_Customize_Partial. The callback can either echo the
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* partial or return the partial as a string, or return false if error.
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*/
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public $render_callback;
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/**
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* Whether the container element is included in the partial, or if only the contents are rendered.
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*
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* @since 4.5.0
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* @var bool
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*/
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public $container_inclusive = false;
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/**
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* Whether to refresh the entire preview in case a partial cannot be refreshed.
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*
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* A partial render is considered a failure if the render_callback returns false.
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*
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* @since 4.5.0
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* @var bool
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*/
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public $fallback_refresh = true;
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/**
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* Constructor.
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*
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* Supplied `$args` override class property defaults.
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*
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* If `$args['settings']` is not defined, use the $id as the setting ID.
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*
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* @since 4.5.0
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*
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* @param WP_Customize_Selective_Refresh $component Customize Partial Refresh plugin instance.
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* @param string $id Control ID.
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* @param array $args {
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* Optional. Arguments to override class property defaults.
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*
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* @type array|string $settings All settings IDs tied to the partial. If undefined, `$id` will be used.
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* }
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*/
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public function __construct( WP_Customize_Selective_Refresh $component, $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[ $key ];
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}
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}
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$this->component = $component;
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$this->id = $id;
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$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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if ( empty( $this->render_callback ) ) {
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$this->render_callback = array( $this, 'render_callback' );
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}
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// Process settings.
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if ( ! isset( $this->settings ) ) {
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$this->settings = array( $id );
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} elseif ( is_string( $this->settings ) ) {
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$this->settings = array( $this->settings );
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}
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if ( empty( $this->primary_setting ) ) {
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$this->primary_setting = current( $this->settings );
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}
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}
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/**
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* Retrieves parsed ID data for multidimensional setting.
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*
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* @since 4.5.0
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*
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* @return array {
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* ID data for multidimensional partial.
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*
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* @type string $base ID base.
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* @type array $keys Keys for multidimensional array.
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* }
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*/
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final public function id_data() {
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return $this->id_data;
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}
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/**
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* Renders the template partial involving the associated settings.
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*
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* @since 4.5.0
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*
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* @param array $container_context Optional. Array of context data associated with the target container (placement).
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* Default empty array.
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* @return string|array|false The rendered partial as a string, raw data array (for client-side JS template),
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* or false if no render applied.
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*/
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final public function render( $container_context = array() ) {
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$partial = $this;
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$rendered = false;
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if ( ! empty( $this->render_callback ) ) {
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ob_start();
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$return_render = call_user_func( $this->render_callback, $this, $container_context );
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$ob_render = ob_get_clean();
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if ( null !== $return_render && '' !== $ob_render ) {
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_doing_it_wrong( __FUNCTION__, __( 'Partial render must echo the content or return the content string (or array), but not both.' ), '4.5.0' );
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}
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/*
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* Note that the string return takes precedence because the $ob_render may just\
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* include PHP warnings or notices.
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*/
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$rendered = null !== $return_render ? $return_render : $ob_render;
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}
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/**
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* Filters partial rendering.
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*
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* @since 4.5.0
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*
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* @param string|array|false $rendered The partial value. Default false.
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* @param WP_Customize_Partial $partial WP_Customize_Setting instance.
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* @param array $container_context Optional array of context data associated with
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* the target container.
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*/
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$rendered = apply_filters( 'customize_partial_render', $rendered, $partial, $container_context );
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/**
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* Filters partial rendering for a specific partial.
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*
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* The dynamic portion of the hook name, `$partial->ID` refers to the partial ID.
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*
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* @since 4.5.0
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*
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* @param string|array|false $rendered The partial value. Default false.
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* @param WP_Customize_Partial $partial WP_Customize_Setting instance.
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* @param array $container_context Optional array of context data associated with
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* the target container.
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*/
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$rendered = apply_filters( "customize_partial_render_{$partial->id}", $rendered, $partial, $container_context );
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return $rendered;
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}
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/**
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* Default callback used when invoking WP_Customize_Control::render().
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*
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* Note that this method may echo the partial *or* return the partial as
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* a string or array, but not both. Output buffering is performed when this
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* is called. Subclasses can override this with their specific logic, or they
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* may provide an 'render_callback' argument to the constructor.
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*
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* This method may return an HTML string for straight DOM injection, or it
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* may return an array for supporting Partial JS subclasses to render by
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* applying to client-side templating.
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*
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* @since 4.5.0
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*
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* @param WP_Customize_Partial $partial Partial.
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* @param array $context Context.
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* @return string|array|false
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*/
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public function render_callback( WP_Customize_Partial $partial, $context = array() ) {
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unset( $partial, $context );
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return false;
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}
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/**
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* Retrieves the data to export to the client via JSON.
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*
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* @since 4.5.0
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*
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* @return array Array of parameters passed to the JavaScript.
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*/
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public function json() {
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$exports = array(
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'settings' => $this->settings,
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'primarySetting' => $this->primary_setting,
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'selector' => $this->selector,
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'type' => $this->type,
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'fallbackRefresh' => $this->fallback_refresh,
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'containerInclusive' => $this->container_inclusive,
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);
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return $exports;
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}
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/**
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* Checks if the user can refresh this partial.
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*
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* Returns false if the user cannot manipulate one of the associated settings,
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* or if one of the associated settings does not exist.
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*
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* @since 4.5.0
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*
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* @return bool False if user can't edit one of the related settings,
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* or if one of the associated settings does not exist.
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*/
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final public function check_capabilities() {
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if ( ! empty( $this->capability ) && ! current_user_can( $this->capability ) ) {
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return false;
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}
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foreach ( $this->settings as $setting_id ) {
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$setting = $this->component->manager->get_setting( $setting_id );
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if ( ! $setting || ! $setting->check_capabilities() ) {
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return false;
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}
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}
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return true;
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}
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}
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