summaryrefslogtreecommitdiffstats
path: root/wp-includes/fonts.php
blob: 4806662160b811bb8a8e85d814dd7dd1d76b0ddd (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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
<?php
/**
 * Fonts functions.
 *
 * @package    WordPress
 * @subpackage Fonts
 * @since      6.4.0
 */

/**
 * Generates and prints font-face styles for given fonts or theme.json fonts.
 *
 * @since 6.4.0
 *
 * @param array[][] $fonts {
 *     Optional. The font-families and their font faces. Default empty array.
 *
 *     @type array {
 *         An indexed or associative (keyed by font-family) array of font variations for this font-family.
 *         Each font face has the following structure.
 *
 *         @type array {
 *             @type string          $font-family             The font-family property.
 *             @type string|string[] $src                     The URL(s) to each resource containing the font data.
 *             @type string          $font-style              Optional. The font-style property. Default 'normal'.
 *             @type string          $font-weight             Optional. The font-weight property. Default '400'.
 *             @type string          $font-display            Optional. The font-display property. Default 'fallback'.
 *             @type string          $ascent-override         Optional. The ascent-override property.
 *             @type string          $descent-override        Optional. The descent-override property.
 *             @type string          $font-stretch            Optional. The font-stretch property.
 *             @type string          $font-variant            Optional. The font-variant property.
 *             @type string          $font-feature-settings   Optional. The font-feature-settings property.
 *             @type string          $font-variation-settings Optional. The font-variation-settings property.
 *             @type string          $line-gap-override       Optional. The line-gap-override property.
 *             @type string          $size-adjust             Optional. The size-adjust property.
 *             @type string          $unicode-range           Optional. The unicode-range property.
 *         }
 *     }
 * }
 */
function wp_print_font_faces( $fonts = array() ) {

	if ( empty( $fonts ) ) {
		$fonts = WP_Font_Face_Resolver::get_fonts_from_theme_json();
	}

	if ( empty( $fonts ) ) {
		return;
	}

	$wp_font_face = new WP_Font_Face();
	$wp_font_face->generate_and_print( $fonts );
}

/**
 * Registers a new font collection in the font library.
 *
 * See {@link https://schemas.wp.org/trunk/font-collection.json} for the schema
 * the font collection data must adhere to.
 *
 * @since 6.5.0
 *
 * @param string $slug Font collection slug. May only contain alphanumeric characters, dashes,
 *                     and underscores. See sanitize_title().
 * @param array  $args {
 *     Font collection data.
 *
 *     @type string       $name          Required. Name of the font collection shown in the Font Library.
 *     @type string       $description   Optional. A short descriptive summary of the font collection. Default empty.
 *     @type array|string $font_families Required. Array of font family definitions that are in the collection,
 *                                       or a string containing the path or URL to a JSON file containing the font collection.
 *     @type array        $categories    Optional. Array of categories, each with a name and slug, that are used by the
 *                                       fonts in the collection. Default empty.
 * }
 * @return WP_Font_Collection|WP_Error A font collection if it was registered
 *                                     successfully, or WP_Error object on failure.
 */
function wp_register_font_collection( string $slug, array $args ) {
	return WP_Font_Library::get_instance()->register_font_collection( $slug, $args );
}

/**
 * Unregisters a font collection from the Font Library.
 *
 * @since 6.5.0
 *
 * @param string $slug Font collection slug.
 * @return bool True if the font collection was unregistered successfully, else false.
 */
function wp_unregister_font_collection( string $slug ) {
	return WP_Font_Library::get_instance()->unregister_font_collection( $slug );
}

/**
 * Retrieves font uploads directory information.
 *
 * Same as wp_font_dir() but "light weight" as it doesn't attempt to create the font uploads directory.
 * Intended for use in themes, when only 'basedir' and 'baseurl' are needed, generally in all cases
 * when not uploading files.
 *
 * @since 6.5.0
 *
 * @see wp_font_dir()
 *
 * @return array See wp_font_dir() for description.
 */
function wp_get_font_dir() {
	return wp_font_dir( false );
}

/**
 * Returns an array containing the current fonts upload directory's path and URL.
 *
 * @since 6.5.0
 *
 * @param bool $create_dir Optional. Whether to check and create the font uploads directory. Default true.
 * @return array {
 *     Array of information about the font upload directory.
 *
 *     @type string       $path    Base directory and subdirectory or full path to the fonts upload directory.
 *     @type string       $url     Base URL and subdirectory or absolute URL to the fonts upload directory.
 *     @type string       $subdir  Subdirectory
 *     @type string       $basedir Path without subdir.
 *     @type string       $baseurl URL path without subdir.
 *     @type string|false $error   False or error message.
 * }
 */
function wp_font_dir( $create_dir = true ) {
	/*
	 * Allow extenders to manipulate the font directory consistently.
	 *
	 * Ensures the upload_dir filter is fired both when calling this function
	 * directly and when the upload directory is filtered in the Font Face
	 * REST API endpoint.
	 */
	add_filter( 'upload_dir', '_wp_filter_font_directory' );
	$font_dir = wp_upload_dir( null, $create_dir, false );
	remove_filter( 'upload_dir', '_wp_filter_font_directory' );
	return $font_dir;
}

/**
 * A callback function for use in the {@see 'upload_dir'} filter.
 *
 * This function is intended for internal use only and should not be used by plugins and themes.
 * Use wp_get_font_dir() instead.
 *
 * @since 6.5.0
 * @access private
 *
 * @param string $font_dir The font directory.
 * @return string The modified font directory.
 */
function _wp_filter_font_directory( $font_dir ) {
	if ( doing_filter( 'font_dir' ) ) {
		// Avoid an infinite loop.
		return $font_dir;
	}

	$font_dir = array(
		'path'    => untrailingslashit( $font_dir['basedir'] ) . '/fonts',
		'url'     => untrailingslashit( $font_dir['baseurl'] ) . '/fonts',
		'subdir'  => '',
		'basedir' => untrailingslashit( $font_dir['basedir'] ) . '/fonts',
		'baseurl' => untrailingslashit( $font_dir['baseurl'] ) . '/fonts',
		'error'   => false,
	);

	/**
	 * Filters the fonts directory data.
	 *
	 * This filter allows developers to modify the fonts directory data.
	 *
	 * @since 6.5.0
	 *
	 * @param array $font_dir {
	 *     Array of information about the font upload directory.
	 *
	 *     @type string       $path    Base directory and subdirectory or full path to the fonts upload directory.
	 *     @type string       $url     Base URL and subdirectory or absolute URL to the fonts upload directory.
	 *     @type string       $subdir  Subdirectory
	 *     @type string       $basedir Path without subdir.
	 *     @type string       $baseurl URL path without subdir.
	 *     @type string|false $error   False or error message.
	 * }
	 */
	return apply_filters( 'font_dir', $font_dir );
}

/**
 * Deletes child font faces when a font family is deleted.
 *
 * @access private
 * @since 6.5.0
 *
 * @param int     $post_id Post ID.
 * @param WP_Post $post    Post object.
 */
function _wp_after_delete_font_family( $post_id, $post ) {
	if ( 'wp_font_family' !== $post->post_type ) {
		return;
	}

	$font_faces = get_children(
		array(
			'post_parent' => $post_id,
			'post_type'   => 'wp_font_face',
		)
	);

	foreach ( $font_faces as $font_face ) {
		wp_delete_post( $font_face->ID, true );
	}
}

/**
 * Deletes associated font files when a font face is deleted.
 *
 * @access private
 * @since 6.5.0
 *
 * @param int     $post_id Post ID.
 * @param WP_Post $post    Post object.
 */
function _wp_before_delete_font_face( $post_id, $post ) {
	if ( 'wp_font_face' !== $post->post_type ) {
		return;
	}

	$font_files = get_post_meta( $post_id, '_wp_font_face_file', false );
	$font_dir   = wp_get_font_dir()['path'];

	foreach ( $font_files as $font_file ) {
		wp_delete_file( $font_dir . '/' . $font_file );
	}
}

/**
 * Register the default font collections.
 *
 * @access private
 * @since 6.5.0
 */
function _wp_register_default_font_collections() {
	wp_register_font_collection(
		'google-fonts',
		array(
			'name'          => _x( 'Google Fonts', 'font collection name' ),
			'description'   => __( 'Install from Google Fonts. Fonts are copied to and served from your site.' ),
			'font_families' => 'https://s.w.org/images/fonts/wp-6.5/collections/google-fonts-with-preview.json',
			'categories'    => array(
				array(
					'name' => _x( 'Sans Serif', 'font category' ),
					'slug' => 'sans-serif',
				),
				array(
					'name' => _x( 'Display', 'font category' ),
					'slug' => 'display',
				),
				array(
					'name' => _x( 'Serif', 'font category' ),
					'slug' => 'serif',
				),
				array(
					'name' => _x( 'Handwriting', 'font category' ),
					'slug' => 'handwriting',
				),
				array(
					'name' => _x( 'Monospace', 'font category' ),
					'slug' => 'monospace',
				),
			),
		)
	);
}