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<?php | |
/** | |
* @file | |
* Contains \Drupal\ckeditor\Plugin\Editor\CKEditor. | |
*/ | |
namespace Drupal\ckeditor\Plugin\Editor; | |
use Drupal\Core\Extension\ModuleHandlerInterface; | |
use Drupal\ckeditor\CKEditorPluginManager; | |
use Drupal\Core\Form\FormStateInterface; | |
use Drupal\Core\Language\LanguageManagerInterface; | |
use Drupal\Core\Render\Element; | |
use Drupal\Core\Render\RendererInterface; | |
use Drupal\editor\Plugin\EditorBase; | |
use Drupal\Core\Plugin\ContainerFactoryPluginInterface; | |
use Drupal\editor\Entity\Editor as EditorEntity; | |
use Symfony\Component\DependencyInjection\ContainerInterface; | |
/** | |
* Defines a CKEditor-based text editor for Drupal. | |
* | |
* @Editor( | |
* id = "ckeditor", | |
* label = @Translation("CKEditor"), | |
* supports_content_filtering = TRUE, | |
* supports_inline_editing = TRUE, | |
* is_xss_safe = FALSE, | |
* supported_element_types = { | |
* "textarea" | |
* } | |
* ) | |
*/ | |
class CKEditor extends EditorBase implements ContainerFactoryPluginInterface { | |
/** | |
* The module handler to invoke hooks on. | |
* | |
* @var \Drupal\Core\Extension\ModuleHandlerInterface | |
*/ | |
protected $moduleHandler; | |
/** | |
* The language manager. | |
* | |
* @var \Drupal\Core\Language\LanguageManagerInterface | |
*/ | |
protected $languageManager; | |
/** | |
* The CKEditor plugin manager. | |
* | |
* @var \Drupal\ckeditor\CKEditorPluginManager | |
*/ | |
protected $ckeditorPluginManager; | |
/** | |
* The renderer. | |
* | |
* @var \Drupal\Core\Render\RendererInterface | |
*/ | |
protected $renderer; | |
/** | |
* Constructs a Drupal\Component\Plugin\PluginBase object. | |
* | |
* @param array $configuration | |
* A configuration array containing information about the plugin instance. | |
* @param string $plugin_id | |
* The plugin_id for the plugin instance. | |
* @param mixed $plugin_definition | |
* The plugin implementation definition. | |
* @param \Drupal\ckeditor\CKEditorPluginManager $ckeditor_plugin_manager | |
* The CKEditor plugin manager. | |
* @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler | |
* The module handler to invoke hooks on. | |
* @param \Drupal\Core\Language\LanguageManagerInterface $language_manager | |
* The language manager. | |
* @param \Drupal\Core\Render\RendererInterface $renderer | |
* The renderer. | |
*/ | |
public function __construct(array $configuration, $plugin_id, $plugin_definition, CKEditorPluginManager $ckeditor_plugin_manager, ModuleHandlerInterface $module_handler, LanguageManagerInterface $language_manager, RendererInterface $renderer) { | |
parent::__construct($configuration, $plugin_id, $plugin_definition); | |
$this->ckeditorPluginManager = $ckeditor_plugin_manager; | |
$this->moduleHandler = $module_handler; | |
$this->languageManager = $language_manager; | |
$this->renderer = $renderer; | |
} | |
/** | |
* {@inheritdoc} | |
*/ | |
public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) { | |
return new static( | |
$configuration, | |
$plugin_id, | |
$plugin_definition, | |
$container->get('plugin.manager.ckeditor.plugin'), | |
$container->get('module_handler'), | |
$container->get('language_manager'), | |
$container->get('renderer') | |
); | |
} | |
/** | |
* {@inheritdoc} | |
*/ | |
public function getDefaultSettings() { | |
return array( | |
'toolbar' => array( | |
'rows' => array( | |
// Button groups. | |
array( | |
array( | |
'name' => t('Formatting'), | |
'items' => array('Bold', 'Italic',), | |
), | |
array( | |
'name' => t('Links'), | |
'items' => array('DrupalLink', 'DrupalUnlink',), | |
), | |
array( | |
'name' => t('Lists'), | |
'items' => array('BulletedList', 'NumberedList',), | |
), | |
array( | |
'name' => t('Media'), | |
'items' => array('Blockquote', 'DrupalImage',), | |
), | |
array( | |
'name' => t('Tools'), | |
'items' => array('Source',), | |
), | |
), | |
), | |
), | |
'plugins' => array(), | |
); | |
} | |
/** | |
* {@inheritdoc} | |
*/ | |
public function settingsForm(array $form, FormStateInterface $form_state, EditorEntity $editor) { | |
$settings = $editor->getSettings(); | |
$ckeditor_settings_toolbar = array( | |
'#theme' => 'ckeditor_settings_toolbar', | |
'#editor' => $editor, | |
'#plugins' => $this->ckeditorPluginManager->getButtons(), | |
); | |
$form['toolbar'] = array( | |
'#type' => 'container', | |
'#attached' => array( | |
'library' => array('ckeditor/drupal.ckeditor.admin'), | |
'drupalSettings' => [ | |
'ckeditor' => [ | |
'toolbarAdmin' => (string) $this->renderer->renderPlain($ckeditor_settings_toolbar), | |
], | |
], | |
), | |
'#attributes' => array('class' => array('ckeditor-toolbar-configuration')), | |
); | |
$form['toolbar']['button_groups'] = array( | |
'#type' => 'textarea', | |
'#title' => t('Toolbar buttons'), | |
'#default_value' => json_encode($settings['toolbar']['rows']), | |
'#attributes' => array('class' => array('ckeditor-toolbar-textarea')), | |
); | |
// CKEditor plugin settings, if any. | |
$form['plugin_settings'] = array( | |
'#type' => 'vertical_tabs', | |
'#title' => t('CKEditor plugin settings'), | |
'#attributes' => array( | |
'id' => 'ckeditor-plugin-settings', | |
), | |
); | |
$this->ckeditorPluginManager->injectPluginSettingsForm($form, $form_state, $editor); | |
if (count(Element::children($form['plugins'])) === 0) { | |
unset($form['plugins']); | |
unset($form['plugin_settings']); | |
} | |
// Hidden CKEditor instance. We need a hidden CKEditor instance with all | |
// plugins enabled, so we can retrieve CKEditor's per-feature metadata (on | |
// which tags, attributes, styles and classes are enabled). This metadata is | |
// necessary for certain filters' (for instance, the html_filter filter) | |
// settings to be updated accordingly. | |
// Get a list of all external plugins and their corresponding files. | |
$plugins = array_keys($this->ckeditorPluginManager->getDefinitions()); | |
$all_external_plugins = array(); | |
foreach ($plugins as $plugin_id) { | |
$plugin = $this->ckeditorPluginManager->createInstance($plugin_id); | |
if (!$plugin->isInternal()) { | |
$all_external_plugins[$plugin_id] = $plugin->getFile(); | |
} | |
} | |
// Get a list of all buttons that are provided by all plugins. | |
$all_buttons = array_reduce($this->ckeditorPluginManager->getButtons(), function($result, $item) { | |
return array_merge($result, array_keys($item)); | |
}, array()); | |
// Build a fake Editor object, which we'll use to generate JavaScript | |
// settings for this fake Editor instance. | |
$fake_editor = entity_create('editor', array( | |
'format' => $editor->id(), | |
'editor' => 'ckeditor', | |
'settings' => array( | |
// Single toolbar row, single button group, all existing buttons. | |
'toolbar' => array( | |
'rows' => array( | |
0 => array( | |
0 => array( | |
'name' => 'All existing buttons', | |
'items' => $all_buttons, | |
) | |
) | |
), | |
), | |
'plugins' => $settings['plugins'], | |
), | |
)); | |
$config = $this->getJSSettings($fake_editor); | |
// Remove the ACF configuration that is generated based on filter settings, | |
// because otherwise we cannot retrieve per-feature metadata. | |
unset($config['allowedContent']); | |
$form['hidden_ckeditor'] = array( | |
'#markup' => '<div id="ckeditor-hidden" class="hidden"></div>', | |
'#attached' => array( | |
'drupalSettings' => ['ckeditor' => ['hiddenCKEditorConfig' => $config]], | |
), | |
); | |
return $form; | |
} | |
/** | |
* {@inheritdoc} | |
*/ | |
public function settingsFormSubmit(array $form, FormStateInterface $form_state) { | |
// Modify the toolbar settings by reference. The values in | |
// $form_state->getValue(array('editor', 'settings')) will be saved directly | |
// by editor_form_filter_admin_format_submit(). | |
$toolbar_settings = &$form_state->getValue(array('editor', 'settings', 'toolbar')); | |
// The rows key is not built into the form structure, so decode the button | |
// groups data into this new key and remove the button_groups key. | |
$toolbar_settings['rows'] = json_decode($toolbar_settings['button_groups'], TRUE); | |
unset($toolbar_settings['button_groups']); | |
// Remove the plugin settings' vertical tabs state; no need to save that. | |
if ($form_state->hasValue(array('editor', 'settings', 'plugins'))) { | |
$form_state->unsetValue(array('editor', 'settings', 'plugin_settings')); | |
} | |
} | |
/** | |
* {@inheritdoc} | |
*/ | |
public function getJSSettings(EditorEntity $editor) { | |
$settings = array(); | |
// Get the settings for all enabled plugins, even the internal ones. | |
$enabled_plugins = array_keys($this->ckeditorPluginManager->getEnabledPluginFiles($editor, TRUE)); | |
foreach ($enabled_plugins as $plugin_id) { | |
$plugin = $this->ckeditorPluginManager->createInstance($plugin_id); | |
$settings += $plugin->getConfig($editor); | |
} | |
// Fall back on English if no matching language code was found. | |
$display_langcode = 'en'; | |
// Map the interface language code to a CKEditor translation if interface | |
// translation is enabled. | |
if ($this->moduleHandler->moduleExists('locale')) { | |
$ckeditor_langcodes = $this->getLangcodes(); | |
$language_interface = $this->languageManager->getCurrentLanguage(); | |
if (isset($ckeditor_langcodes[$language_interface->getId()])) { | |
$display_langcode = $ckeditor_langcodes[$language_interface->getId()]; | |
} | |
} | |
// Next, set the most fundamental CKEditor settings. | |
$external_plugin_files = $this->ckeditorPluginManager->getEnabledPluginFiles($editor); | |
$settings += array( | |
'toolbar' => $this->buildToolbarJSSetting($editor), | |
'contentsCss' => $this->buildContentsCssJSSetting($editor), | |
'extraPlugins' => implode(',', array_keys($external_plugin_files)), | |
'language' => $display_langcode, | |
// Configure CKEditor to not load styles.js. The StylesCombo plugin will | |
// set stylesSet according to the user's settings, if the "Styles" button | |
// is enabled. We cannot get rid of this until CKEditor will stop loading | |
// styles.js by default. | |
// See http://dev.ckeditor.com/ticket/9992#comment:9. | |
'stylesSet' => FALSE, | |
); | |
// Finally, set Drupal-specific CKEditor settings. | |
$root_relative_file_url = function ($uri) { | |
return file_url_transform_relative(file_create_url($uri)); | |
}; | |
$settings += array( | |
'drupalExternalPlugins' => array_map($root_relative_file_url, $external_plugin_files), | |
); | |
// Parse all CKEditor plugin JavaScript files for translations. | |
if ($this->moduleHandler->moduleExists('locale')) { | |
locale_js_translate(array_values($external_plugin_files)); | |
} | |
ksort($settings); | |
return $settings; | |
} | |
/** | |
* Returns a list of language codes supported by CKEditor. | |
* | |
* @return array | |
* An associative array keyed by language codes. | |
*/ | |
public function getLangcodes() { | |
// Cache the file system based language list calculation because this would | |
// be expensive to calculate all the time. The cache is cleared on core | |
// upgrades which is the only situation the CKEditor file listing should | |
// change. | |
$langcode_cache = \Drupal::cache()->get('ckeditor.langcodes'); | |
if (!empty($langcode_cache)) { | |
$langcodes = $langcode_cache->data; | |
} | |
if (empty($langcodes)) { | |
$langcodes = array(); | |
// Collect languages included with CKEditor based on file listing. | |
$files = scandir('core/assets/vendor/ckeditor/lang'); | |
foreach ($files as $file) { | |
if ($file[0] !== '.' && preg_match('/\.js$/', $file)) { | |
$langcode = basename($file, '.js'); | |
$langcodes[$langcode] = $langcode; | |
} | |
} | |
\Drupal::cache()->set('ckeditor.langcodes', $langcodes); | |
} | |
// Get language mapping if available to map to Drupal language codes. | |
// This is configurable in the user interface and not expensive to get, so | |
// we don't include it in the cached language list. | |
$language_mappings = $this->moduleHandler->moduleExists('language') ? language_get_browser_drupal_langcode_mappings() : array(); | |
foreach ($langcodes as $langcode) { | |
// If this language code is available in a Drupal mapping, use that to | |
// compute a possibility for matching from the Drupal langcode to the | |
// CKEditor langcode. | |
// For instance, CKEditor uses the langcode 'no' for Norwegian, Drupal | |
// uses 'nb'. This would then remove the 'no' => 'no' mapping and replace | |
// it with 'nb' => 'no'. Now Drupal knows which CKEditor translation to | |
// load. | |
if (isset($language_mappings[$langcode]) && !isset($langcodes[$language_mappings[$langcode]])) { | |
$langcodes[$language_mappings[$langcode]] = $langcode; | |
unset($langcodes[$langcode]); | |
} | |
} | |
return $langcodes; | |
} | |
/** | |
* {@inheritdoc} | |
*/ | |
public function getLibraries(EditorEntity $editor) { | |
$libraries = array( | |
'ckeditor/drupal.ckeditor', | |
); | |
// Get the required libraries for any enabled plugins. | |
$enabled_plugins = array_keys($this->ckeditorPluginManager->getEnabledPluginFiles($editor)); | |
foreach ($enabled_plugins as $plugin_id) { | |
$plugin = $this->ckeditorPluginManager->createInstance($plugin_id); | |
$additional_libraries = array_diff($plugin->getLibraries($editor), $libraries); | |
$libraries = array_merge($libraries, $additional_libraries); | |
} | |
return $libraries; | |
} | |
/** | |
* Builds the "toolbar" configuration part of the CKEditor JS settings. | |
* | |
* @see getJSSettings() | |
* | |
* @param \Drupal\editor\Entity\Editor $editor | |
* A configured text editor object. | |
* @return array | |
* An array containing the "toolbar" configuration. | |
*/ | |
public function buildToolbarJSSetting(EditorEntity $editor) { | |
$toolbar = array(); | |
$settings = $editor->getSettings(); | |
foreach ($settings['toolbar']['rows'] as $row) { | |
foreach ($row as $group) { | |
$toolbar[] = $group; | |
} | |
$toolbar[] = '/'; | |
} | |
return $toolbar; | |
} | |
/** | |
* Builds the "contentsCss" configuration part of the CKEditor JS settings. | |
* | |
* @see getJSSettings() | |
* | |
* @param \Drupal\editor\Entity\Editor $editor | |
* A configured text editor object. | |
* @return array | |
* An array containing the "contentsCss" configuration. | |
*/ | |
public function buildContentsCssJSSetting(EditorEntity $editor) { | |
$css = array( | |
drupal_get_path('module', 'ckeditor') . '/css/ckeditor-iframe.css', | |
drupal_get_path('module', 'system') . '/css/components/align.module.css', | |
); | |
$this->moduleHandler->alter('ckeditor_css', $css, $editor); | |
$css = array_merge($css, _ckeditor_theme_css()); | |
$css = array_map('file_create_url', $css); | |
$css = array_map('file_url_transform_relative', $css); | |
return array_values($css); | |
} | |
} |