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| 1 | <?php |
| 2 | /** |
| 3 | * Functions and template tags for Site Logo theme tool. |
| 4 | * |
| 5 | * @package automattic/jetpack |
| 6 | */ |
| 7 | |
| 8 | /** |
| 9 | * Retrieve the site logo URL or ID (URL by default). Pass in the string 'id' for ID. |
| 10 | * |
| 11 | * @uses get_option() |
| 12 | * @uses esc_url_raw() |
| 13 | * @uses set_url_scheme() |
| 14 | * @param string $show 'url' or 'id' for site logo. |
| 15 | * @return mixed The URL or ID of our site logo, false if not set |
| 16 | * @since 1.0 |
| 17 | */ |
| 18 | function jetpack_get_site_logo( $show = 'url' ) { |
| 19 | $logo_id = site_logo()->logo; |
| 20 | |
| 21 | // Return false if no logo is set |
| 22 | if ( ! $logo_id ) { |
| 23 | return false; |
| 24 | } |
| 25 | |
| 26 | // Return the ID if specified, otherwise return the URL by default |
| 27 | if ( 'id' === $show ) { |
| 28 | return $logo_id; |
| 29 | } else { |
| 30 | $logo_url = wp_get_attachment_url( $logo_id ); |
| 31 | return esc_url_raw( set_url_scheme( $logo_url ) ); |
| 32 | } |
| 33 | } |
| 34 | |
| 35 | /** |
| 36 | * Retrieve an array of the dimensions of the Site Logo. |
| 37 | * |
| 38 | * @uses Site_Logo::theme_size() |
| 39 | * @uses get_option( 'thumbnail_size_w' ) |
| 40 | * @uses get_option( 'thumbnail_size_h' ) |
| 41 | * @uses global $_wp_additional_image_sizes; |
| 42 | * |
| 43 | * @since 3.6.0 |
| 44 | * |
| 45 | * @return array $dimensions { |
| 46 | * An array of dimensions of the Site Logo. |
| 47 | * |
| 48 | * @type string $width Width of the logo in pixels. |
| 49 | * @type string $height Height of the logo in pixels. |
| 50 | * } |
| 51 | */ |
| 52 | function jetpack_get_site_logo_dimensions() { |
| 53 | // Get the image size to use with the logo. |
| 54 | $size = site_logo()->theme_size(); |
| 55 | |
| 56 | // If the size is the default `thumbnail`, get its dimensions. Otherwise, get them from $_wp_additional_image_sizes |
| 57 | if ( empty( $size ) ) { |
| 58 | return false; |
| 59 | } elseif ( 'thumbnail' === $size ) { |
| 60 | $dimensions = array( |
| 61 | 'width' => get_option( 'thumbnail_size_w' ), |
| 62 | 'height' => get_option( 'thumbnail_size_h' ), |
| 63 | ); |
| 64 | } else { |
| 65 | global $_wp_additional_image_sizes; |
| 66 | |
| 67 | if ( ! isset( $_wp_additional_image_sizes[ $size ] ) ) { |
| 68 | return false; |
| 69 | } |
| 70 | |
| 71 | $dimensions = array( |
| 72 | 'width' => $_wp_additional_image_sizes[ $size ]['width'], |
| 73 | 'height' => $_wp_additional_image_sizes[ $size ]['height'], |
| 74 | ); |
| 75 | } |
| 76 | |
| 77 | return $dimensions; |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * Determine if a site logo is assigned or not. |
| 82 | * |
| 83 | * @uses get_option |
| 84 | * @return boolean True if there is an active logo, false otherwise |
| 85 | */ |
| 86 | function jetpack_has_site_logo() { |
| 87 | return site_logo()->has_site_logo(); |
| 88 | } |
| 89 | |
| 90 | /** |
| 91 | * Output an <img> tag of the site logo, at the size specified |
| 92 | * in the theme's add_theme_support() declaration. |
| 93 | * |
| 94 | * @uses Site_Logo::logo |
| 95 | * @uses Site_Logo::theme_size() |
| 96 | * @uses jetpack_has_site_logo() |
| 97 | * @uses jetpack_is_customize_preview() |
| 98 | * @uses esc_url() |
| 99 | * @uses home_url() |
| 100 | * @uses esc_attr() |
| 101 | * @uses wp_get_attachment_image() |
| 102 | * @uses apply_filters() |
| 103 | * @since 1.0 |
| 104 | */ |
| 105 | function jetpack_the_site_logo() { |
| 106 | $size = site_logo()->theme_size(); |
| 107 | |
| 108 | // If no logo is set, but we're in the Customizer, leave a placeholder (needed for the live preview). |
| 109 | if ( |
| 110 | ! jetpack_has_site_logo() |
| 111 | && jetpack_is_customize_preview() |
| 112 | ) { |
| 113 | /* |
| 114 | * Reason: the output is escaped in the sprintf. |
| 115 | * phpcs:disable WordPress.Security.EscapeOutput |
| 116 | */ |
| 117 | /** This filter is documented in modules/theme-tools/site-logo/inc/functions.php */ |
| 118 | echo apply_filters( |
| 119 | 'jetpack_the_site_logo', |
| 120 | sprintf( |
| 121 | '<a href="%1$s" class="site-logo-link" style="display:none;"><img class="site-logo" data-size="%2$s" /></a>', |
| 122 | esc_url( home_url( '/' ) ), |
| 123 | esc_attr( $size ) |
| 124 | ), |
| 125 | array(), |
| 126 | $size |
| 127 | ); |
| 128 | /* phpcs:enable WordPress.Security.EscapeOutput */ |
| 129 | return; |
| 130 | } |
| 131 | |
| 132 | // Check for WP 4.5 Site Logo and Jetpack logo. |
| 133 | $logo_id = get_theme_mod( 'custom_logo' ); |
| 134 | // Get the option directly so the updated logo can be injected into customizer previews. |
| 135 | $jetpack_logo_id = get_option( 'site_logo' ); |
| 136 | |
| 137 | // Use WP Core logo if present and is an id (of an attachment), otherwise use Jetpack's. |
| 138 | if ( ! is_numeric( $logo_id ) && $jetpack_logo_id ) { |
| 139 | $logo_id = $jetpack_logo_id; |
| 140 | } |
| 141 | |
| 142 | /* |
| 143 | * Reason: the output is escaped in the sprintf. |
| 144 | * phpcs:disable WordPress.Security.EscapeOutput |
| 145 | */ |
| 146 | /** |
| 147 | * Filter the Site Logo output. |
| 148 | * |
| 149 | * @module theme-tools |
| 150 | * |
| 151 | * @since 3.2.0 |
| 152 | * |
| 153 | * @param string $html Site Logo HTML output. |
| 154 | * @param array $jetpack_logo Array of Site Logo details. |
| 155 | * @param string $size Size specified in add_theme_support declaration, or 'thumbnail' default. |
| 156 | */ |
| 157 | echo apply_filters( |
| 158 | 'jetpack_the_site_logo', |
| 159 | sprintf( |
| 160 | '<a href="%1$s" class="site-logo-link" rel="home" itemprop="url">%2$s</a>', |
| 161 | esc_url( home_url( '/' ) ), |
| 162 | wp_get_attachment_image( |
| 163 | $logo_id, |
| 164 | $size, |
| 165 | false, |
| 166 | array( |
| 167 | 'class' => "site-logo attachment-$size", |
| 168 | 'data-size' => $size, |
| 169 | 'itemprop' => 'logo', |
| 170 | ) |
| 171 | ) |
| 172 | ), |
| 173 | // Return array format in filter for back compatibility. |
| 174 | array( |
| 175 | 'id' => $jetpack_logo_id, |
| 176 | 'url' => wp_get_attachment_url( $jetpack_logo_id ), |
| 177 | 'sizes' => array(), |
| 178 | ), |
| 179 | $size |
| 180 | ); |
| 181 | /* phpcs:enable WordPress.Security.EscapeOutput */ |
| 182 | } |
| 183 | |
| 184 | /** |
| 185 | * Whether the site is being previewed in the Customizer. |
| 186 | * Duplicate of core function until 4.0 is released. |
| 187 | * |
| 188 | * @global WP_Customize_Manager $wp_customize Customizer instance. |
| 189 | * @return bool True if the site is being previewed in the Customizer, false otherwise. |
| 190 | */ |
| 191 | function jetpack_is_customize_preview() { |
| 192 | global $wp_customize; |
| 193 | // @phan-suppress-next-line PhanTypeMismatchArgumentInternal -- this continues to work as expected, but given the feature deprecation no extra work is needed. |
| 194 | return is_a( $wp_customize, 'WP_Customize_Manager' ) && $wp_customize->is_preview(); |
| 195 | } |
| 196 | |
| 197 | /** |
| 198 | * Sanitize the string of classes used for header text. |
| 199 | * Limit to A-Z,a-z,0-9,(space),(comma),_,- |
| 200 | * |
| 201 | * @param string $classes Unsanitized string of CSS classes. |
| 202 | * @return string Sanitized string of CSS classes. |
| 203 | */ |
| 204 | function jetpack_sanitize_header_text_classes( $classes ) { |
| 205 | $classes = preg_replace( '/[^A-Za-z0-9\,\ ._-]/', '', $classes ); |
| 206 | |
| 207 | return $classes; |
| 208 | } |