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| 1 | <?php |
| 2 | /** |
| 3 | * Verbum Gutenberg Editor |
| 4 | * |
| 5 | * @package automattic/jetpack-mu-plugins |
| 6 | */ |
| 7 | |
| 8 | declare( strict_types = 1 ); |
| 9 | |
| 10 | require_once __DIR__ . '/class-verbum-block-utils.php'; |
| 11 | require_once __DIR__ . '/class-verbum-asset-loader.php'; |
| 12 | |
| 13 | /** |
| 14 | * Verbum_Gutenberg_Editor is responsible for loading the Gutenberg editor for comments. |
| 15 | * |
| 16 | * This loads the isolated editor, and sets up the editor to be used for Verbum_Comments. |
| 17 | * |
| 18 | * @see https://github.com/Automattic/isolated-block-editor |
| 19 | * |
| 20 | * @phan-constructor-used-for-side-effects |
| 21 | */ |
| 22 | class Verbum_Gutenberg_Editor { |
| 23 | /** |
| 24 | * Comment forms can appear anywhere (page, post, query loop, etc), there is no reliable way to determine if there are comments on the page, |
| 25 | * So we hook into `comment_form_before` and set this flag to true when a comment form is found. |
| 26 | * |
| 27 | * @var bool |
| 28 | */ |
| 29 | public $should_enqueue_assets = false; |
| 30 | |
| 31 | /** |
| 32 | * Class constructor |
| 33 | */ |
| 34 | public function __construct() { |
| 35 | define( 'VERBUM_USING_GUTENBERG', true ); |
| 36 | |
| 37 | // Override the placeholder text |
| 38 | add_filter( |
| 39 | 'write_your_story', |
| 40 | function () { |
| 41 | return __( 'Write a comment...', 'jetpack-mu-wpcom' ); |
| 42 | }, |
| 43 | 9999 |
| 44 | ); |
| 45 | |
| 46 | add_action( |
| 47 | 'comment_form_before', |
| 48 | function () { |
| 49 | $this->should_enqueue_assets = true; |
| 50 | } |
| 51 | ); |
| 52 | |
| 53 | add_filter( 'init', array( $this, 'remove_strict_kses_filters' ) ); |
| 54 | add_filter( 'wp_enqueue_scripts', array( $this, 'enqueue_assets' ) ); |
| 55 | add_filter( 'comment_text', array( \Verbum_Block_Utils::class, 'render_verbum_blocks' ) ); |
| 56 | add_filter( 'pre_comment_content', array( \Verbum_Block_Utils::class, 'remove_blocks' ) ); |
| 57 | } |
| 58 | |
| 59 | /** |
| 60 | * Default KSES filters on wpcom only allow HTML for admins and people who can post "posts" to the blog they're commenting on. |
| 61 | * See: wp-includes/kses.php (this one adds the restrictions). |
| 62 | * See: wp-content/mu-plugins/misc.php (this one removes it, but only has_cap('publish_posts')). |
| 63 | */ |
| 64 | public function remove_strict_kses_filters() { |
| 65 | // Allow HTML when blocks are enabled. |
| 66 | remove_filter( 'pre_comment_content', 'wp_filter_kses' ); |
| 67 | add_filter( 'pre_comment_content', 'wp_filter_post_kses' ); |
| 68 | } |
| 69 | |
| 70 | /** |
| 71 | * Enqueue the assets for the Gutenberg editor |
| 72 | * |
| 73 | * In case the page is singular and has comment closed or front page with comments closed we avoid the enqueueing |
| 74 | */ |
| 75 | public function enqueue_assets() { |
| 76 | if ( ! \Verbum_Block_Utils::should_show_verbum_comments() && ! $this->should_enqueue_assets ) { |
| 77 | return; |
| 78 | } |
| 79 | |
| 80 | \Verbum_Asset_Loader::load_editor_supporting_assets(); // Editor itself is loaded dynamically |
| 81 | } |
| 82 | } |