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1 <?php |
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2 /** |
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3 * Shadow block support flag. |
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4 * |
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5 * @package WordPress |
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6 * @since 6.3.0 |
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7 */ |
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8 |
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9 /** |
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10 * Registers the style and shadow block attributes for block types that support it. |
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11 * |
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12 * @since 6.3.0 |
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13 * @access private |
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14 * |
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15 * @param WP_Block_Type $block_type Block Type. |
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16 */ |
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17 function wp_register_shadow_support( $block_type ) { |
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18 $has_shadow_support = block_has_support( $block_type, 'shadow', false ); |
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19 |
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20 if ( ! $has_shadow_support ) { |
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21 return; |
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22 } |
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23 |
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24 if ( ! $block_type->attributes ) { |
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25 $block_type->attributes = array(); |
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26 } |
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27 |
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28 if ( array_key_exists( 'style', $block_type->attributes ) ) { |
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29 $block_type->attributes['style'] = array( |
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30 'type' => 'object', |
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31 ); |
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32 } |
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33 |
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34 if ( array_key_exists( 'shadow', $block_type->attributes ) ) { |
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35 $block_type->attributes['shadow'] = array( |
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36 'type' => 'string', |
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37 ); |
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38 } |
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39 } |
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40 |
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41 /** |
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42 * Add CSS classes and inline styles for shadow features to the incoming attributes array. |
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43 * This will be applied to the block markup in the front-end. |
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44 * |
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45 * @since 6.3.0 |
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46 * @since 6.6.0 Return early if __experimentalSkipSerialization is true. |
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47 * @access private |
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48 * |
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49 * @param WP_Block_Type $block_type Block type. |
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50 * @param array $block_attributes Block attributes. |
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51 * @return array Shadow CSS classes and inline styles. |
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52 */ |
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53 function wp_apply_shadow_support( $block_type, $block_attributes ) { |
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54 $has_shadow_support = block_has_support( $block_type, 'shadow', false ); |
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55 |
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56 if ( |
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57 ! $has_shadow_support || |
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58 wp_should_skip_block_supports_serialization( $block_type, 'shadow' ) |
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59 ) { |
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60 return array(); |
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61 } |
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62 |
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63 $shadow_block_styles = array(); |
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64 |
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65 $custom_shadow = $block_attributes['style']['shadow'] ?? null; |
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66 $shadow_block_styles['shadow'] = $custom_shadow; |
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67 |
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68 $attributes = array(); |
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69 $styles = wp_style_engine_get_styles( $shadow_block_styles ); |
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70 |
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71 if ( ! empty( $styles['css'] ) ) { |
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72 $attributes['style'] = $styles['css']; |
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73 } |
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74 |
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75 return $attributes; |
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76 } |
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77 |
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78 // Register the block support. |
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79 WP_Block_Supports::get_instance()->register( |
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80 'shadow', |
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81 array( |
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82 'register_attribute' => 'wp_register_shadow_support', |
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83 'apply' => 'wp_apply_shadow_support', |
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84 ) |
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85 ); |