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1 <?php |
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2 /** |
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3 * Server-side rendering of the `core/site-logo` block. |
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4 * |
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5 * @package WordPress |
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6 */ |
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7 |
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8 /** |
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9 * Renders the `core/site-logo` block on the server. |
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10 * |
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11 * @param array $attributes The block attributes. |
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12 * |
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13 * @return string The render. |
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14 */ |
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15 function render_block_core_site_logo( $attributes ) { |
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16 $adjust_width_height_filter = function ( $image ) use ( $attributes ) { |
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17 if ( empty( $attributes['width'] ) || empty( $image ) ) { |
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18 return $image; |
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19 } |
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20 $height = (float) $attributes['width'] / ( (float) $image[1] / (float) $image[2] ); |
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21 return array( $image[0], (int) $attributes['width'], (int) $height ); |
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22 }; |
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23 |
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24 add_filter( 'wp_get_attachment_image_src', $adjust_width_height_filter ); |
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25 |
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26 $custom_logo = get_custom_logo(); |
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27 |
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28 remove_filter( 'wp_get_attachment_image_src', $adjust_width_height_filter ); |
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29 |
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30 if ( empty( $custom_logo ) ) { |
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31 return ''; // Return early if no custom logo is set, avoiding extraneous wrapper div. |
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32 } |
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33 |
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34 if ( ! $attributes['isLink'] ) { |
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35 // Remove the link. |
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36 $custom_logo = preg_replace( '#<a.*?>(.*?)</a>#i', '\1', $custom_logo ); |
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37 } |
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38 |
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39 if ( $attributes['isLink'] && '_blank' === $attributes['linkTarget'] ) { |
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40 // Add the link target after the rel="home". |
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41 // Add an aria-label for informing that the page opens in a new tab. |
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42 $aria_label = 'aria-label="' . esc_attr__( '(Home link, opens in a new tab)' ) . '"'; |
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43 $custom_logo = str_replace( 'rel="home"', 'rel="home" target="' . $attributes['linkTarget'] . '"' . $aria_label, $custom_logo ); |
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44 } |
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45 |
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46 $classnames = array(); |
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47 if ( ! empty( $attributes['className'] ) ) { |
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48 $classnames[] = $attributes['className']; |
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49 } |
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50 |
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51 if ( ! empty( $attributes['align'] ) && in_array( $attributes['align'], array( 'center', 'left', 'right' ), true ) ) { |
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52 $classnames[] = "align{$attributes['align']}"; |
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53 } |
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54 |
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55 if ( empty( $attributes['width'] ) ) { |
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56 $classnames[] = 'is-default-size'; |
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57 } |
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58 |
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59 $wrapper_attributes = get_block_wrapper_attributes( array( 'class' => implode( ' ', $classnames ) ) ); |
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60 $html = sprintf( '<div %s>%s</div>', $wrapper_attributes, $custom_logo ); |
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61 return $html; |
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62 } |
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63 |
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64 /** |
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65 * Register a core site setting for a site logo |
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66 */ |
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67 function register_block_core_site_logo_setting() { |
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68 register_setting( |
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69 'general', |
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70 'site_logo', |
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71 array( |
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72 'show_in_rest' => array( |
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73 'name' => 'site_logo', |
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74 ), |
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75 'type' => 'integer', |
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76 'description' => __( 'Site logo.' ), |
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77 ) |
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78 ); |
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79 } |
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80 |
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81 add_action( 'rest_api_init', 'register_block_core_site_logo_setting', 10 ); |
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82 |
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83 /** |
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84 * Registers the `core/site-logo` block on the server. |
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85 */ |
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86 function register_block_core_site_logo() { |
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87 register_block_type_from_metadata( |
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88 __DIR__ . '/site-logo', |
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89 array( |
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90 'render_callback' => 'render_block_core_site_logo', |
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91 ) |
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92 ); |
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93 } |
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94 |
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95 add_action( 'init', 'register_block_core_site_logo' ); |
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96 |
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97 /** |
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98 * Overrides the custom logo with a site logo, if the option is set. |
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99 * |
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100 * @param string $custom_logo The custom logo set by a theme. |
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101 * |
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102 * @return string The site logo if set. |
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103 */ |
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104 function _override_custom_logo_theme_mod( $custom_logo ) { |
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105 $site_logo = get_option( 'site_logo' ); |
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106 return false === $site_logo ? $custom_logo : $site_logo; |
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107 } |
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108 |
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109 add_filter( 'theme_mod_custom_logo', '_override_custom_logo_theme_mod' ); |
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110 |
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111 /** |
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112 * Updates the site_logo option when the custom_logo theme-mod gets updated. |
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113 * |
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114 * @param mixed $value Attachment ID of the custom logo or an empty value. |
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115 * @return mixed |
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116 */ |
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117 function _sync_custom_logo_to_site_logo( $value ) { |
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118 if ( empty( $value ) ) { |
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119 delete_option( 'site_logo' ); |
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120 } else { |
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121 update_option( 'site_logo', $value ); |
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122 } |
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123 |
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124 return $value; |
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125 } |
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126 |
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127 add_filter( 'pre_set_theme_mod_custom_logo', '_sync_custom_logo_to_site_logo' ); |
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128 |
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129 /** |
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130 * Deletes the site_logo when the custom_logo theme mod is removed. |
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131 * |
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132 * @param array $old_value Previous theme mod settings. |
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133 * @param array $value Updated theme mod settings. |
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134 */ |
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135 function _delete_site_logo_on_remove_custom_logo( $old_value, $value ) { |
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136 // If the custom_logo is being unset, it's being removed from theme mods. |
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137 if ( isset( $old_value['custom_logo'] ) && ! isset( $value['custom_logo'] ) ) { |
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138 delete_option( 'site_logo' ); |
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139 } |
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140 } |
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141 |
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142 /** |
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143 * Deletes the site logo when all theme mods are being removed. |
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144 */ |
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145 function _delete_site_logo_on_remove_theme_mods() { |
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146 if ( false !== get_theme_support( 'custom-logo' ) ) { |
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147 delete_option( 'site_logo' ); |
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148 } |
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149 } |
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150 |
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151 /** |
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152 * Hooks `_delete_site_logo_on_remove_custom_logo` in `update_option_theme_mods_$theme`. |
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153 * Hooks `_delete_site_logo_on_remove_theme_mods` in `delete_option_theme_mods_$theme`. |
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154 * |
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155 * Runs on `setup_theme` to account for dynamically-switched themes in the Customizer. |
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156 */ |
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157 function _delete_site_logo_on_remove_custom_logo_on_setup_theme() { |
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158 $theme = get_option( 'stylesheet' ); |
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159 add_action( "update_option_theme_mods_$theme", '_delete_site_logo_on_remove_custom_logo', 10, 2 ); |
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160 add_action( "delete_option_theme_mods_$theme", '_delete_site_logo_on_remove_theme_mods' ); |
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161 } |
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162 add_action( 'setup_theme', '_delete_site_logo_on_remove_custom_logo_on_setup_theme', 11 ); |