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