summaryrefslogtreecommitdiffstats
path: root/wp-includes/style-engine/class-wp-style-engine-css-rule.php
blob: 2b31cff0b48c558fee4ab094bc0aa109f3640f9a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
<?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
 */
#[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}}";
	}
}