97 lines
2.7 KiB
PHP
97 lines
2.7 KiB
PHP
<?php
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/**
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* Experiment to disable TinyMCE and the Classic block.
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*
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* @package gutenberg
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*/
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// add_action( 'admin_footer', 'gutenberg_test_tinymce_access' ); // Uncomment the following line to force an external TinyMCE usage.
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/**
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* Render a variable that we'll use to declare that the editor will need the classic block.
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*/
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function gutenberg_declare_classic_block_necessary() {
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if ( ! gutenberg_post_being_edited_requires_classic_block() ) {
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return;
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}
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echo '<script type="text/javascript">window.wp.needsClassicBlock = true;</script>';
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}
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add_action( 'admin_footer', 'gutenberg_declare_classic_block_necessary' );
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// If user has already requested TinyMCE, we're ending the experiment.
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if ( ! empty( $_GET['requiresTinymce'] ) || gutenberg_post_being_edited_requires_classic_block() ) {
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return;
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}
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/**
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* Disable TinyMCE by introducing a placeholder `_WP_Editors` class.
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*/
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function gutenberg_disable_tinymce() {
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require __DIR__ . '/class--wp-editors.php';
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}
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add_action( 'admin_init', 'gutenberg_disable_tinymce' );
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/**
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* Enqueue TinyMCE proxy script.
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* Detects TinyMCE usage and sets the `requiresTinymce` query argument to stop disabling TinyMCE loading.
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*/
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function gutenberg_enqueue_tinymce_proxy() {
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wp_enqueue_script( 'gutenberg-tinymce-proxy', plugins_url( 'assets/tinymce-proxy.js', __FILE__ ) );
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}
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add_action( 'admin_enqueue_scripts', 'gutenberg_enqueue_tinymce_proxy' );
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/**
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* Example TinyMCE usage used for testing.
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* Uncomment line 8 in this file to enable.
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*/
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function gutenberg_test_tinymce_access() {
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echo '<script type="text/javascript">const a = window.tinymce.$;</script>';
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}
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/**
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* Whether the current editor contains a classic block instance.
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*
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* @return bool True if the editor contains a classic block, false otherwise.
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*/
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function gutenberg_post_being_edited_requires_classic_block() {
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if ( ! is_admin() ) {
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return false;
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}
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// Continue only if we're in the post editor.
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if ( empty( $_GET['post'] ) || empty( $_GET['action'] ) || 'edit' !== $_GET['action'] ) {
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return false;
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}
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// Bail if for some reason the post isn't found.
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$current_post = get_post( absint( $_GET['post'] ) );
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if ( ! $current_post ) {
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return false;
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}
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// Check if block editor is disabled by "Classic Editor" or another plugin.
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if (
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function_exists( 'use_block_editor_for_post_type' ) &&
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! use_block_editor_for_post_type( $current_post->post_type )
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) {
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return true;
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}
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$content = $current_post->post_content;
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if ( empty( $content ) ) {
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return false;
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}
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$parsed_blocks = parse_blocks( $content );
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foreach ( $parsed_blocks as $block ) {
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$is_freeform_block = empty( $block['blockName'] ) || 'core/freeform' === $block['blockName'];
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if ( $is_freeform_block && strlen( trim( $block['innerHTML'] ) ) > 0 ) {
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return true;
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}
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}
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return false;
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}
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