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1 <?php |
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2 /** |
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3 * Server-side rendering of the `core/post-excerpt` 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/post-excerpt` block on the server. |
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10 * |
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11 * @param array $attributes Block attributes. |
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12 * @param string $content Block default content. |
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13 * @param WP_Block $block Block instance. |
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14 * @return string Returns the filtered post excerpt for the current post wrapped inside "p" tags. |
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15 */ |
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16 function render_block_core_post_excerpt( $attributes, $content, $block ) { |
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17 if ( ! isset( $block->context['postId'] ) ) { |
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18 return ''; |
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19 } |
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20 |
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21 $more_text = ! empty( $attributes['moreText'] ) ? '<a class="wp-block-post-excerpt__more-link" href="' . esc_url( get_the_permalink( $block->context['postId'] ) ) . '">' . $attributes['moreText'] . '</a>' : ''; |
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22 $filter_excerpt_more = function( $more ) use ( $more_text ) { |
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23 return empty( $more_text ) ? $more : ''; |
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24 }; |
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25 /** |
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26 * Some themes might use `excerpt_more` filter to handle the |
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27 * `more` link displayed after a trimmed excerpt. Since the |
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28 * block has a `more text` attribute we have to check and |
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29 * override if needed the return value from this filter. |
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30 * So if the block's attribute is not empty override the |
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31 * `excerpt_more` filter and return nothing. This will |
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32 * result in showing only one `read more` link at a time. |
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33 */ |
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34 add_filter( 'excerpt_more', $filter_excerpt_more ); |
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35 $classes = ''; |
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36 if ( isset( $attributes['textAlign'] ) ) { |
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37 $classes .= "has-text-align-{$attributes['textAlign']}"; |
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38 } |
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39 $wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $classes ) ); |
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40 |
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41 $content = '<p class="wp-block-post-excerpt__excerpt">' . get_the_excerpt( $block->context['postId'] ); |
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42 $show_more_on_new_line = ! isset( $attributes['showMoreOnNewLine'] ) || $attributes['showMoreOnNewLine']; |
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43 if ( $show_more_on_new_line && ! empty( $more_text ) ) { |
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44 $content .= '</p><p class="wp-block-post-excerpt__more-text">' . $more_text . '</p>'; |
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45 } else { |
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46 $content .= " $more_text</p>"; |
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47 } |
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48 remove_filter( 'excerpt_more', $filter_excerpt_more ); |
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49 return sprintf( '<div %1$s>%2$s</div>', $wrapper_attributes, $content ); |
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50 } |
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51 |
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52 /** |
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53 * Registers the `core/post-excerpt` block on the server. |
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54 */ |
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55 function register_block_core_post_excerpt() { |
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56 register_block_type_from_metadata( |
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57 __DIR__ . '/post-excerpt', |
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58 array( |
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59 'render_callback' => 'render_block_core_post_excerpt', |
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60 ) |
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61 ); |
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62 } |
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63 add_action( 'init', 'register_block_core_post_excerpt' ); |