cool_message-8.x-2.0/cool_message.module

<?php

/**
 * @file
 * cool_message.module
 * Provides cool notification messages.
 */

use Drupal\Core\Render\Markup;
use Drupal\Core\Routing\RouteMatchInterface;

/**
 * Implements hook_help().
 */
function cool_message_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {
    case 'cool_message.admin_config':
      return '<p>' . t('Appearance settings for all system messages.') . '</p>';
  }
}

/**
 * Implements hook_theme().
 */
function cool_message_theme($existing, $type, $theme, $path) {
  return array(
    'cool_messages' => array(
      'variables' => array('title' => NULL, 'type' => NULL, 'style' => NULL, 'messages' => NULL),
      'template' => 'cool-messages',
    ),
  );
}

/**
 * Process variables for cool-messages.tpl.php.
 *
 * The $variables array contains the following arguments:
 * - title
 * - type
 * - style
 * - messages
 *
 * @see cool-messages.tpl.php
 */
function template_preprocess_cool_messages(&$variables) {
  $status_heading = array(
    'status'  => t('Status message'),
    'error'   => t('Error message'),
    'warning' => t('Warning message'),
  );
  $messages = $variables['messages'];
  $output = '';
  if (!empty($status_heading[$variables['type']])) {
    $variables['title'] = $status_heading[$variables['type']];
  }
  
  if (count($messages) > 0) {
    foreach ($messages as $message) {
      if (is_array($message)) {
        if ($message instanceof Markup) {
          $output .= '<p>' . $message->__toString() . '</p>';
        }
        else {
          $output .= \Drupal::service('renderer')->render($message);
        }
      }
      else {
        $output .= '<p>' . $message . '</p>';
      }
    }
  }
//  kint($variables);

  if (isset($variables['style']) && !empty($variables['style'])) {
    $variables['style'] = ' style=background-color:' . $variables['style'] . '';
  }
  
  $variables['messages'] = $output;
}

/**
 * Implements hook_page_attachments().
 */
function cool_message_page_attachments(array &$attachments) {

  // Unconditionally attach an asset to the page.
  $attachments['#attached']['library'][] = 'cool_message/cool_message.library';
  $config = \Drupal::config('cool_message.cool_message');
  $settings = [
    'timeout' => $config->get('coolmessage_timeout') * 1000,
  ];
  $attachments['#attached']['drupalSettings']['coll_message'] = $settings;
}

/**
 * Implements hook_theme_registry_alter().
 */
function cool_message_theme_registry_alter(&$theme_registry) {
  $coolmessage_enable = \Drupal::config('cool_message.cool_message')->get('coolmessage_enable');
  if ($coolmessage_enable) {
    $theme_registry['status_messages']['function'] = 'cool_message_status_messages';
  }
}

/**
 * Show themed messages.
 */
function cool_message_status_messages($variables) {
  $cm_conf = \Drupal::config('cool_message.cool_message');
  $bg_colors = [
    'status' => $cm_conf->get('status_color'),
    'info' => $cm_conf->get('info_color'),
    'warning' => $cm_conf->get('warning_color'),
    'error' => $cm_conf->get('error_color')
  ];
  $coolmessage_fixed = $cm_conf->get('coolmessage_position');

  $class_fixed = $coolmessage_fixed ? ' class="fixed"' : '';
  $output = '<div id="messages"><div id="messages-box" ' . $class_fixed . '>';
  foreach ($variables['message_list'] as $type => $messages) {
    $template = [
      '#theme' => 'cool_messages',
      '#type' => $type,
      '#style' => isset($bg_colors[$type]) ? $bg_colors[$type] : '',
      '#messages' => $messages
    ];
    $output .= \Drupal::service('renderer')->render($template); 
  }
  $output .= "</div></div>";
  return $output;
}