xowl.module

<?php

/**
 * @file
 * Module to interact with Xowl for semantic tagging
 * @author Ximdex <dev@ximdex.com>
 */

function xowl_install() {
    Drupal::config('xowl.settings')->set('endpoint', 'http://localhost/xowl')->save();
}
/**
 * <p>Implements hook_help().</p>
 *
 * <p>Displays help and module information</p>
 *
 * @param string path
 *   path of the site we're using to display help
 * @param array arg
 *   Array that holds the current path as returned from arg() function
 */

function xowl_help($path, $arg)
{
    switch ($path) {
        case "admin/help#xowl":
            return '<p>' . t("A module to provide semantic tagging to Drupal content through Xowl") . '</p>';
            break;

        default:
            break;
    }
}


/**
 * <p>Configuration form for Xowl module</p>
 */
function xowl_server_configuration_form()
{
    $form = array();

    $form['overview'] = array(
        '#markup' => t('This interface allows the user to integrate the XOwl module with Drupal'),
        '#prefix' => '<p>',
        '#suffix' => '</p>',
    );

    $form['xowl_endpoint'] = array(
        '#title' => t('Endpoint'),
        '#description' => t('Set the endpoint of the XOwl server. Example: http://domain.com:port/xowl'),
        '#type' => 'textfield',
        '#required' => TRUE,
        '#default_value' => \Drupal::config()->get('xowl_endpoint', 'http://localhost/xowl'),
    );

    return system_settings_form($form);
}

/**
 * <p>Implements hook_form_alter()</p>
 * <p>Modify the edit form to include some JS variables needed to decide whether the enhancer button must be enabled or not</p>
 */
function xowl_form_node_form_alter(&$form, &$form_state, $form_id) {

    $nodeType  = $form_state->getFormObject()->getEntity()->getType()   ;


    $config = \Drupal::config('xowl.settings');
    $endpoint  = $config->get('endpoint');



    $xowlSettings = array(
        'enabled' => 1 ,
        'path' => drupal_get_path('module', 'xowl') ,
        "basedir" => base_path() . drupal_get_path('module', 'xowl'),
        "url" =>    '/xowl/enhance'   ,

    );


    $form['#attached']['html_head'][] = [
        [
            '#tag' => 'script',
            '#value' => 'xowlSettings = ' . json_encode( $xowlSettings ) . ' ;' ,
        ],
        'xowl-settings'
    ];


    $form['suggestions'] = array(
        '#title' => t('Suggestions'),
        '#description' => t('Selected suggestions'),
        '#type' => 'hidden',
        '#attributes' => array('id' => "suggestions_field"),
        '#weight' => 0,

    );



}


function xowl_editor_js_settings_alter(array &$settings) {
    if (empty($settings['editor']['formats'])) {
        return;
    }
    foreach ($settings['editor']['formats'] as $format => $setting) {
        $settings['editor']['formats'][$format]['editorSettings']['extraPlugins'] .= ',xowl'  ;
        $settings['editor']['formats'][$format]['editorSettings']['drupalExternalPlugins']['xowl'] = base_path()  .  drupal_get_path('module', 'xowl') . '/js/plugins/xowl/xowl.js' ;


        $settings['editor']['formats'][$format]['editorSettings']['toolbar'][]= array(
            'name' => 'xowl',
            'items' => array(
                'xowl'),

        );

    }
}

function xowl_ckeditor_css_alter( array &$settings ) {

    array_push( $settings,  base_path() . drupal_get_path('module', 'xowl') . '/css/xowl.module.css'  ) ;

   


}

/**
 * <p>Callback function for 'xowl/enhance' endpoint</p>
 *
 * <p>This function calls Ximdex XOwl endpoint to analyze and enhance the content</p>
 */
function xowl_enhance_content()
{
    module_load_include('php', 'xowl', 'includes/XowlStanbolService');
    $xowlEndpoint = \Drupal::config()->get('xowl_endpoint');
    $content = filter_input(INPUT_POST, 'content');
    $service = new XowlStanbolService($xowlEndpoint);
    $data = $service->suggest($content)->getData();
    $data["text"] = $content;

    header('Content-type: application/json');
    echo json_encode($data);
}