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<?php |
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/** |
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* @file |
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* Allows to flexibly create, browse and select entities. |
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*/ |
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use \Drupal\Core\Form\FormStateInterface; |
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use \Drupal\Core\Render\Element; |
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use Drupal\Core\Url; |
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use \Drupal\file\FileInterface; |
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use Drupal\Core\Routing\RouteMatchInterface; |
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/** |
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* Implements hook_help(). |
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*/ |
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function entity_browser_help($route_name, RouteMatchInterface $arg) { |
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switch ($route_name) { |
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case 'help.page.entity_browser': |
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$output = ''; |
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$output .= '<h3>' . t('About') . '</h3>'; |
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$output .= '<p>' . t('The Entity Browser module provides a generic entity browser/picker/selector. It can be used in any context where one needs to select a few entities and do something with them. For more information, see the online documentation for <a href=":entity_browser-documentation">Entity Browser</a>.', array(':entity_browser-documentation' => 'https://drupal-media.gitbooks.io/drupal8-guide/content/modules/entity_browser/intro.html')) . '</p>'; |
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$output .= '<h3>' . t('Uses') . '</h3>'; |
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$output .= '<dl>'; |
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$output .= '<dt>' . t('General') . '</dt>'; |
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$output .= '<dd>' . t('Entity browser comes with an example module that can be used as a starting point.') . '</dd>'; |
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$output .= '<dt>' . t('Example use cases') . '</dt>'; |
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$output .= '<dd>' . t('Powerfull entity reference widget') . '</dd>'; |
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$output .= '<dd>' . t('Embedding entities into wysiwyg') . '</dd>'; |
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$output .= '</dl>'; |
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return $output; |
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} |
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} |
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/** |
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* Implements hook_theme(). |
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* |
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* Overrides the core html theme to use a custom template for iframes. |
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*/ |
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function entity_browser_theme() { |
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return [ |
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'html__entity_browser__iframe' => [ |
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'template' => 'html--entity-browser--iframe', |
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'render element' => 'html', |
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'preprocess functions' => ['template_preprocess_html'], |
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], |
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'html__entity_browser__modal' => [ |
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'template' => 'html--entity-browser--iframe', |
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'render element' => 'html', |
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'preprocess functions' => ['template_preprocess_html'], |
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], |
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'page__entity_browser__iframe' => [ |
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'template' => 'page--entity-browser--iframe', |
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'render element' => 'html', |
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'preprocess functions' => ['template_preprocess_page'], |
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], |
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'page__entity_browser__modal' => [ |
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'template' => 'page--entity-browser--iframe', |
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'render element' => 'html', |
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'preprocess functions' => ['template_preprocess_page'], |
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], |
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]; |
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} |
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/** |
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* Implements hook_form_alter(). |
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*/ |
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function entity_browser_form_alter(&$form, FormStateInterface &$form_state) { |
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$entity_browser_dialog_edit = \Drupal::service('request_stack')->getCurrentRequest()->get('_route'); |
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if ($entity_browser_dialog_edit == 'entity_browser.edit_form') { |
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// Let's allow the save button only. |
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foreach (Element::children($form['actions']) as $key) { |
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$form['actions'][$key]['#access'] = $key == 'submit'; |
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} |
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// Use Ajax. |
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$form['actions']['submit']['#ajax'] = [ |
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'url' => Url::fromRoute('entity_browser.edit_form', ['entity_type' => $form_state->getFormObject()->getEntity()->getEntityTypeId(), 'entity' => $form_state->getFormObject()->getEntity()->id()]), |
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'options' => [ |
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'query' => [ |
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'details_id' => \Drupal::request()->query->get('details_id'), |
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], |
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], |
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]; |
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} |
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} |
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/** |
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* Implements hook_preprocess_page__entity_browser__iframe(). |
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* |
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* Tries to figure out where messages block lives and display it separately. |
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*/ |
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function entity_browser_preprocess_page__entity_browser__iframe(&$variables) { |
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if (!\Drupal::moduleHandler()->moduleExists('block')) { |
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return; |
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} |
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$variables['messages'] = ''; |
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$blocks = \Drupal::entityTypeManager()->getStorage('block')->loadByProperties([ |
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'theme' => \Drupal::theme()->getActiveTheme()->getName(), |
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'plugin' => 'system_messages_block', |
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]); |
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if (($messages = current($blocks)) && !empty($variables['page'][$messages->getRegion()][$messages->id()])) { |
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$variables['messages'] = $variables['page'][$messages->getRegion()][$messages->id()]; |
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} |
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} |
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/** |
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* Implements hook_preprocess_page__entity_browser__modal(). |
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* |
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* Tries to figure out where messages block lives and display it separately. |
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*/ |
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function entity_browser_preprocess_page__entity_browser__modal(&$variables) { |
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entity_browser_preprocess_page__entity_browser__iframe($variables); |
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} |
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/** |
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* Validates image resolution for the given File. |
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* |
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* Drupal core does not allow users to use existing images. As a result, |
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* calling the normal file_validate_image_resolution() function on a file that |
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* may be used elsewhere would resize it for all of its uses. We copy the |
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* normal validation here so that we can stop this from occurring. |
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* |
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* @param \Drupal\file\FileInterface $file |
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* The file being evaluated. |
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* @param int $maximum_dimensions |
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* The maximum dimensions. |
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* @param int $minimum_dimensions |
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* The minimum dimensions. |
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* |
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* @return array |
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* See file_validate_image_resolution() |
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*/ |
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function entity_browser_file_validate_image_resolution(FileInterface $file, $maximum_dimensions = 0, $minimum_dimensions = 0) { |
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$errors = array(); |
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// Check first that the file is an image. |
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$image_factory = \Drupal::service('image.factory'); |
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$image = $image_factory->get($file->getFileUri()); |
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if ($image->isValid()) { |
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if ($maximum_dimensions) { |
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// Check that it is smaller than the given dimensions. |
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list($width, $height) = explode('x', $maximum_dimensions); |
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if ($image->getWidth() > $width || $image->getHeight() > $height) { |
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// Try to resize the image to fit the dimensions. |
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// This $file->isPermanent() check is the only part of the function |
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// body that is significantly different. |
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if (!$file->isPermanent() && $image->scale($width, $height)) { |
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$image->save(); |
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$file->filesize = $image->getFileSize(); |
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drupal_set_message(t('The image was resized to fit within the maximum allowed dimensions of %dimensions pixels.', array('%dimensions' => $maximum_dimensions))); |
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} |
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else { |
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$errors[] = t('The image exceeds the maximum allowed dimensions.'); |
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} |
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} |
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} |
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if ($minimum_dimensions) { |
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// Check that it is larger than the given dimensions. |
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list($width, $height) = explode('x', $minimum_dimensions); |
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if ($image->getWidth() < $width || $image->getHeight() < $height) { |
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$errors[] = t('The image is too small; the minimum dimensions are %dimensions pixels.', array('%dimensions' => $minimum_dimensions)); |
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} |
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} |
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} |
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return $errors; |
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} |
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drupal-media /
entity_browser
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.