slider-blocks / includes / Blocks / TermColors.php

TermColors.php in GutSlider – All in One Slider and Carousel Blocks for Gutenberg 3.2.0, at includes/Blocks/TermColors.php

128 lines 3.8 KB

Raw Download Zip

1	<?php
2	declare( strict_types=1 );
3
4	namespace GutSlider\Blocks;
5
6	if ( ! defined( 'ABSPATH' ) ) {
7	exit;
8	}
9
10	/**
11	* A "Badge colour" for categories, tags and other public taxonomies.
12	*
13	* Used by the Blog Post block's category badges (terms without one get a colour
14	* from a fixed palette). Stored as term meta `gutslider_color`.
15	*
16	* @package GutSlider\Blocks
17	* @since 3.1.1
18	*/
19	final class TermColors {
20
21	const META_KEY = 'gutslider_color';
22
23	/**
24	* Constructor.
25	*/
26	public function __construct() {
27	add_action( 'init', array( $this, 'register' ), 20 );
28	add_action( 'admin_enqueue_scripts', array( $this, 'enqueue' ) );
29	}
30
31	/**
32	* Register the meta and the form fields on every public taxonomy with an admin screen.
33	*/
34	public function register() {
35	register_meta(
36	'term',
37	self::META_KEY,
38	array(
39	'type' => 'string',
40	'single' => true,
41	'show_in_rest' => true,
42	'sanitize_callback' => 'sanitize_hex_color',
43	'auth_callback' => static function () {
44	return current_user_can( 'manage_categories' );
45	},
46	)
47	);
48
49	foreach ( get_taxonomies( array( 'public' => true, 'show_ui' => true ) ) as $taxonomy ) {
50	if ( 'post_format' === $taxonomy ) {
51	continue;
52	}
53	add_action( "{$taxonomy}_add_form_fields", array( $this, 'add_field' ) );
54	add_action( "{$taxonomy}_edit_form_fields", array( $this, 'edit_field' ) );
55	add_action( "created_{$taxonomy}", array( $this, 'save' ) );
56	add_action( "edited_{$taxonomy}", array( $this, 'save' ) );
57	}
58	}
59
60	/**
61	* Colour picker on the term screens.
62	*
63	* @param string $hook Admin page.
64	*/
65	public function enqueue( $hook ) {
66	if ( 'edit-tags.php' !== $hook && 'term.php' !== $hook ) {
67	return;
68	}
69	wp_enqueue_style( 'wp-color-picker' );
70	wp_enqueue_script( 'wp-color-picker' );
71	wp_add_inline_script( 'wp-color-picker', 'jQuery(function($){$(".gutslider-term-color").wpColorPicker();});' );
72	}
73
74	/**
75	* Field on "Add new".
76	*/
77	public function add_field() {
78	?>
79	<div class="form-field">
80	<label for="gutslider-term-color"><?php esc_html_e( 'Badge colour', 'slider-blocks' ); ?></label>
81	<?php wp_nonce_field( 'gutslider_term_color', 'gutslider_term_color_nonce' ); ?>
82	<input type="text" id="gutslider-term-color" name="gutslider_term_color" class="gutslider-term-color" value="" />
83	<p><?php esc_html_e( 'Used by GutSlider category badges. Leave empty for an automatic colour.', 'slider-blocks' ); ?></p>
84	</div>
85	<?php
86	}
87
88	/**
89	* Field on "Edit".
90	*
91	* @param \WP_Term $term Term.
92	*/
93	public function edit_field( $term ) {
94	$color = (string) get_term_meta( $term->term_id, self::META_KEY, true );
95	?>
96	<tr class="form-field">
97	<th scope="row"><label for="gutslider-term-color"><?php esc_html_e( 'Badge colour', 'slider-blocks' ); ?></label></th>
98	<td>
99	<?php wp_nonce_field( 'gutslider_term_color', 'gutslider_term_color_nonce' ); ?>
100	<input type="text" id="gutslider-term-color" name="gutslider_term_color" class="gutslider-term-color" value="<?php echo esc_attr( $color ); ?>" />
101	<p class="description"><?php esc_html_e( 'Used by GutSlider category badges. Leave empty for an automatic colour.', 'slider-blocks' ); ?></p>
102	</td>
103	</tr>
104	<?php
105	}
106
107	/**
108	* Save the colour.
109	*
110	* @param int $term_id Term id.
111	*/
112	public function save( $term_id ) {
113	if ( ! isset( $_POST['gutslider_term_color_nonce'] ) \|\| ! wp_verify_nonce( sanitize_key( wp_unslash( $_POST['gutslider_term_color_nonce'] ) ), 'gutslider_term_color' ) ) {
114	return;
115	}
116	if ( ! current_user_can( 'manage_categories' ) ) {
117	return;
118	}
119	$color = isset( $_POST['gutslider_term_color'] ) ? sanitize_hex_color( wp_unslash( $_POST['gutslider_term_color'] ) ) : '';
120	if ( $color ) {
121	update_term_meta( $term_id, self::META_KEY, $color );
122	} else {
123	delete_term_meta( $term_id, self::META_KEY );
124	}
125	PostSlider::flush_cache();
126	}
127	}
128