WordPress/wp-includes/style-engine/class-wp-style-engine-css-rule.php

140 lines
4.0 KiB
PHP
Raw Normal View History

<?php
/**
* Style Engine: WP_Style_Engine_CSS_Rule class
*
* @package WordPress
* @subpackage StyleEngine
* @since 6.1.0
*/
/**
* Core class used for style engine CSS rules.
*
* Holds, sanitizes, processes, and prints CSS declarations for the style engine.
*
* @since 6.1.0
*/
Code Modernization: Add `AllowDynamicProperties` attribute to recently introduced classes. This commit is a follow-up to [54133] for new classes introduced in WordPress 6.1 since the previous commit. Dynamic (non-explicitly declared) properties are deprecated as of PHP 8.2 and are expected to become a fatal error in PHP 9.0. There are a number of ways to mitigate this: * If it is an accidental typo for a declared property: fix the typo. * For known properties: declare them on the class. * For unknown properties: add the magic `__get()`, `__set()`, et al. methods to the class or let the class extend `stdClass` which has highly optimized versions of these magic methods built in. * For unknown ''use'' of dynamic properties, the `#[AllowDynamicProperties]` attribute can be added to the class. The attribute will automatically be inherited by child classes. Trac ticket #56034 is open to investigate and handle the third and fourth type of situations, however it has become clear this will need more time and will not be ready in time for WP 6.1. To reduce “noise” in the meantime, both in the error logs of WP users moving onto PHP 8.2, in the test run logs of WP itself, in test runs of plugins and themes, as well as to prevent duplicate tickets from being opened for the same issue, the `#[AllowDynamicProperties]` attribute has been added to all “parent” classes in WP. Reference: [https://wiki.php.net/rfc/deprecate_dynamic_properties PHP RFC: Deprecate dynamic properties]. Follow-up to [53922], [54133]. Props jrf. See #56513, #56034. Built from https://develop.svn.wordpress.org/trunk@54481 git-svn-id: http://core.svn.wordpress.org/trunk@54040 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2022-10-11 17:00:12 +02:00
#[AllowDynamicProperties]
class WP_Style_Engine_CSS_Rule {
/**
* The selector.
*
* @since 6.1.0
* @var string
*/
protected $selector;
/**
* The selector declarations.
*
* Contains a WP_Style_Engine_CSS_Declarations object.
*
* @since 6.1.0
* @var WP_Style_Engine_CSS_Declarations
*/
protected $declarations;
/**
* Constructor.
*
* @since 6.1.0
*
* @param string $selector Optional. The CSS selector. Default empty string.
* @param string[]|WP_Style_Engine_CSS_Declarations $declarations Optional. An associative array of CSS definitions,
* e.g. `array( "$property" => "$value", "$property" => "$value" )`,
* or a WP_Style_Engine_CSS_Declarations object.
* Default empty array.
*/
public function __construct( $selector = '', $declarations = array() ) {
$this->set_selector( $selector );
$this->add_declarations( $declarations );
}
/**
* Sets the selector.
*
* @since 6.1.0
*
* @param string $selector The CSS selector.
* @return WP_Style_Engine_CSS_Rule Returns the object to allow chaining of methods.
*/
public function set_selector( $selector ) {
$this->selector = $selector;
return $this;
}
/**
* Sets the declarations.
*
* @since 6.1.0
*
* @param string[]|WP_Style_Engine_CSS_Declarations $declarations An array of declarations (property => value pairs),
* or a WP_Style_Engine_CSS_Declarations object.
* @return WP_Style_Engine_CSS_Rule Returns the object to allow chaining of methods.
*/
public function add_declarations( $declarations ) {
$is_declarations_object = ! is_array( $declarations );
$declarations_array = $is_declarations_object ? $declarations->get_declarations() : $declarations;
if ( null === $this->declarations ) {
if ( $is_declarations_object ) {
$this->declarations = $declarations;
return $this;
}
$this->declarations = new WP_Style_Engine_CSS_Declarations( $declarations_array );
}
$this->declarations->add_declarations( $declarations_array );
return $this;
}
/**
* Gets the declarations object.
*
* @since 6.1.0
*
* @return WP_Style_Engine_CSS_Declarations The declarations object.
*/
public function get_declarations() {
return $this->declarations;
}
/**
* Gets the full selector.
*
* @since 6.1.0
*
* @return string
*/
public function get_selector() {
return $this->selector;
}
/**
* Gets the CSS.
*
* @since 6.1.0
*
* @param bool $should_prettify Optional. Whether to add spacing, new lines and indents.
* Default false.
* @param int $indent_count Optional. The number of tab indents to apply to the rule.
* Applies if `prettify` is `true`. Default 0.
* @return string
*/
public function get_css( $should_prettify = false, $indent_count = 0 ) {
$rule_indent = $should_prettify ? str_repeat( "\t", $indent_count ) : '';
$declarations_indent = $should_prettify ? $indent_count + 1 : 0;
$suffix = $should_prettify ? "\n" : '';
$spacer = $should_prettify ? ' ' : '';
$selector = $should_prettify ? str_replace( ',', ",\n", $this->get_selector() ) : $this->get_selector();
$css_declarations = $this->declarations->get_declarations_string( $should_prettify, $declarations_indent );
if ( empty( $css_declarations ) ) {
return '';
}
return "{$rule_indent}{$selector}{$spacer}{{$suffix}{$css_declarations}{$suffix}{$rule_indent}}";
}
}