apply_filters( 'wp_editor_settings', array $settings, string $editor_id )

add_filter( 'wp_editor_settings', function( $settings, $editor_id ) {
    if ( 'content' === $editor_id ) {
        $settings['textarea_rows'] = 25;
        $settings['media_buttons'] = true;
    }
    return $settings;
}, 10, 2 );

apply_filters( 'wp_default_editor', string $editor )

// Force Code editor for all users
add_filter( 'wp_default_editor', function() {
    return 'html';
} );

apply_filters( 'user_can_richedit', bool $can_richedit )

// Disable visual editor for subscribers
add_filter( 'user_can_richedit', function( $can ) {
    if ( current_user_can( 'subscriber' ) ) {
        return false;
    }
    return $can;
} );

apply_filters( 'the_editor', string $output )

add_filter( 'the_editor', function( $output ) {
    // Add a wrapper div
    return '<div class="my-editor-wrapper">' . $output . '</div>';
} );

apply_filters( 'the_editor_content', string $content, string $default_editor )

add_filter( 'the_editor_content', function( $content, $editor ) {
    if ( 'tinymce' === $editor && empty( $content ) ) {
        return '<p>Start writing here...</p>';
    }
    return $content;
}, 10, 2 );

apply_filters( 'format_for_editor', string $text, string $default_editor )

apply_filters( 'quicktags_settings', array $settings, string $editor_id )

add_filter( 'quicktags_settings', function( $settings, $editor_id ) {
    // Add spell button, remove close button
    $settings['buttons'] = 'strong,em,link,block,del,ins,img,ul,ol,li,code,spell';
    return $settings;
}, 10, 2 );

apply_filters( 'mce_css', string $stylesheets )

add_filter( 'mce_css', function( $mce_css ) {
    if ( ! empty( $mce_css ) ) {
        $mce_css .= ',';
    }
    $mce_css .= plugins_url( 'editor-style.css', __FILE__ );
    return $mce_css;
} );

apply_filters( 'editor_stylesheets', array $stylesheets )

apply_filters( 'tiny_mce_plugins', array $plugins, string $editor_id )

add_filter( 'tiny_mce_plugins', function( $plugins ) {
    // Remove paste plugin
    $key = array_search( 'paste', $plugins );
    if ( false !== $key ) {
        unset( $plugins[ $key ] );
    }
    return $plugins;
} );

apply_filters( 'teeny_mce_plugins', array $plugins, string $editor_id )

apply_filters( 'mce_external_plugins', array $external_plugins, string $editor_id )

add_filter( 'mce_external_plugins', function( $plugins ) {
    $plugins['myplugin'] = plugins_url( 'js/mce-plugin.js', __FILE__ );
    return $plugins;
} );

// Also add the button
add_filter( 'mce_buttons', function( $buttons ) {
    $buttons[] = 'myplugin_button';
    return $buttons;
} );

apply_filters( 'mce_external_languages', array $translations, string $editor_id )

apply_filters( 'mce_buttons', array $buttons, string $editor_id )

add_filter( 'mce_buttons', function( $buttons ) {
    // Add table button
    array_push( $buttons, 'table' );
    return $buttons;
} );

apply_filters( 'mce_buttons_2', array $buttons, string $editor_id )

apply_filters( 'mce_buttons_3', array $buttons, string $editor_id )

apply_filters( 'mce_buttons_4', array $buttons, string $editor_id )

apply_filters( 'teeny_mce_buttons', array $buttons, string $editor_id )

apply_filters( 'tiny_mce_before_init', array $mce_init, string $editor_id )

add_filter( 'tiny_mce_before_init', function( $init ) {
    // Add custom styles to the Format dropdown
    $init['style_formats'] = json_encode( array(
        array(
            'title'   => 'Lead Paragraph',
            'block'   => 'p',
            'classes' => 'lead',
        ),
        array(
            'title'  => 'Highlight',
            'inline' => 'span',
            'classes' => 'highlight',
        ),
    ) );
    
    // Enable style_formats in toolbar
    $init['toolbar1'] = str_replace( 'formatselect', 'styleselect', $init['toolbar1'] );
    
    return $init;
} );

apply_filters( 'teeny_mce_before_init', array $mce_init, string $editor_id )

apply_filters( 'wp_mce_translation', array $strings, string $mce_locale )

apply_filters( 'wp_link_query_args', array $query )

add_filter( 'wp_link_query_args', function( $query ) {
    // Only show pages in link search
    $query['post_type'] = 'page';
    return $query;
} );

apply_filters( 'wp_link_query', array $results, array $query )

add_filter( 'wp_link_query', function( $results, $query ) {
    // Add custom entries to link search
    $results[] = array(
        'ID'        => 0,
        'title'     => 'External: Google',
        'permalink' => 'https://google.com',
        'info'      => 'External Link',
    );
    return $results;
}, 10, 2 );

apply_filters( 'disable_captions', string $disabled )

add_filter( 'disable_captions', '__return_true' );

do_action( 'media_buttons', string $editor_id )

add_action( 'media_buttons', function( $editor_id ) {
    if ( 'content' === $editor_id ) {
        echo '<button type="button" class="button insert-shortcode">Insert Shortcode</button>';
    }
} );

do_action( 'wp_enqueue_editor', array $to_load )

add_action( 'wp_enqueue_editor', function( $to_load ) {
    if ( $to_load['tinymce'] ) {
        wp_enqueue_script( 'my-tinymce-plugin' );
    }
} );

do_action( 'before_wp_tiny_mce', array $mce_settings )

do_action( 'wp_tiny_mce_init', array $mce_settings )

do_action( 'after_wp_tiny_mce', array $mce_settings )

do_action( 'print_default_editor_scripts' )