Initial commit.

README.md

+CKEditor Advanced Tab for Dialogs
+====================
+
+INTRODUCTION
+------------
+
+This module integrates the [dialogadvtab](
+https://ckeditor.com/cke4/addon/dialogadvtab) CKEditor plugin for Drupal 8.
+
+This plugin provides the Advanced dialog window tab to extend some editor dialog windows.
+Thanks to this other plugins do not need to implement the same features for their dialog windows.
+
+REQUIREMENTS
+------------
+
+* CKEditor Module (Core)
+
+
+INSTALLATION
+------------
+
+### Install via Composer (recommended)
+
+If you use Composer to manage dependencies, edit composer.json as follows.
+
+* Run `composer require --prefer-dist composer/installers` to ensure you have
+the composer/installers package. This facilitates installation into directories
+other than vendor using Composer.
+
+* In composer.json, make sure the "installer-paths" section in "extras" has an
+entry for `type:drupal-library`. For example:
+
+```json
+{
+  "libraries/{$name}": ["type:drupal-library"]
+}
+```
+
+* Add the following to the "repositories" section of composer.json:
+
+```json
+{
+  "type": "package",
+  "package": {
+    "name": "ckeditor/dialogadvtab",
+    "version": "4.8.0",
+    "type": "drupal-library",
+    "extra": {
+      "installer-name": "ckeditor/plugins/dialogadvtab"
+    },
+    "dist": {
+      "url": "https://download.ckeditor.com/dialogadvtab/releases/dialogadvtab_4.8.0.zip",
+      "type": "zip"
+    }
+  }
+}
+```
+
+* Run `composer require 'ckeditor/dialogadvtab:4.8.0'` to download the plugin.
+
+* Run `composer require 'drupal/ckeditor_advanced_tab:^1.0.0'` to download the
+CKEditor Advanced Tab module, and enable it [as per usual](
+https://www.drupal.org/docs/8/extending-drupal-8/installing-drupal-8-modules).
+
+
+### Install Manually
+
+* Download the [dialogadvtab](https://ckeditor.com/cke4/addon/dialogadvtab)
+CKEditor plugin.
+
+* Extract and place the plugin contents in the following directory:
+`/libraries/ckeditor/plugins/dialogadvtab/`.
+
+* Install the CKEditor Advanced Tab module [as per usual](
+https://www.drupal.org/docs/8/extending-drupal-8/installing-drupal-8-modules).
+
+MAINTAINERS
+-----------
+Current maintainers:
+
+ * Julien de Nas de Tourris ([julien](https://www.drupal.org/u/julien))

ckeditor_advanced_tab.info.yml

+name: CKEditor Advanced Tab
+type: module
+description: 'Adds the Advanced tab to dialog plugin to CKEditor.'
+core: 8.x
+package: CKEditor
+dependencies:
+ - drupal:ckeditor

ckeditor_advanced_tab.install

+<?php
+
+/**
+ * @file
+ * Install, update, and uninstall functions for CKEditor Advanced Tab.
+ */
+
+/**
+ * Implements hook_requirements().
+ */
+function ckeditor_advanced_tab_requirements($phase) {
+    $requirements = [];
+
+    if ($phase == 'install' || $phase == 'runtime') {
+        $path = '/libraries/ckeditor/plugins/dialogadvtab/';
+        $plugin_detected = file_exists(DRUPAL_ROOT . $path . 'plugin.js');
+
+        if ($plugin_detected) {
+            $requirements['dialogadvtab'] = [
+                'title' => t('CKEditor Advanced Tab'),
+                'value' => t('Plugin detected'),
+                'severity' => REQUIREMENT_OK,
+            ];
+        }
+        else {
+            $requirements['dialogadvtab'] = [
+                'title' => t('CKEditor Advanced Tab'),
+                'value' => t('Plugin not detected'),
+                'severity' => REQUIREMENT_ERROR,
+                'description' => t('The CKEditor plugin <b>Dialog Advanced Tab</b> is
+          required. Download <a href=":url">here</a> and copy to
+          <code>:path</code>.', [
+                    ':url' => 'https://ckeditor.com/cke4/addon/dialogadvtab',
+                    ':path' => $path,
+                ]),
+            ];
+        }
+    }
+
+    return $requirements;
+}

src/Plugin/CKEditorPlugin/CKEditorAdvancedTab.php

+<?php
+
+namespace Drupal\ckeditor_advanced_tab\Plugin\CKEditorPlugin;
+
+use Drupal\ckeditor\CKEditorPluginBase;
+use Drupal\editor\Entity\Editor;
+
+/**
+ * Defines the "Advanced Tab" plugin.
+ *
+ * @CKEditorPlugin(
+ *   id = "dialogadvtab",
+ *   label = @Translation("Advanced Tab Dialog")
+ * )
+ */
+class CKEditorAdvancedTab extends CKEditorPluginBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFile() {
+    return 'libraries/ckeditor/plugins/dialogadvtab/plugin.js';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getButtons() {
+    return [
+      'CreateDiv' => [
+        'label' => t('Advanced Tab'),
+        'image' => 'libraries/ckeditor/plugins/dialogadvtab/icons/table.png',
+      ],
+    ];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getConfig(Editor $editor) {
+    return [];
+  }
+
+}