--- /dev/null
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\filefield_sources\Plugin\FilefieldSource\Clipboard.
+ */
+
+namespace Drupal\filefield_sources\Plugin\FilefieldSource;
+
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\filefield_sources\FilefieldSourceInterface;
+use Drupal\Core\Site\Settings;
+
+/**
+ * A FileField source plugin to allow transfer of files through the clipboard.
+ *
+ * @FilefieldSource(
+ * id = "clipboard",
+ * name = @Translation("Paste from clipboard (<a href=""http://drupal.org/node/1775902"">limited browser support</a>)"),
+ * label = @Translation("Clipboard"),
+ * description = @Translation("Allow users to paste a file directly from the clipboard."),
+ * weight = 1
+ * )
+ */
+class Clipboard implements FilefieldSourceInterface {
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function value(array &$element, &$input, FormStateInterface $form_state) {
+ if (isset($input['filefield_clipboard']['contents']) && strlen($input['filefield_clipboard']['contents']) > 0) {
+ // Check that the destination is writable.
+ $temporary_directory = 'temporary://';
+ if (!file_prepare_directory($temporary_directory, FILE_MODIFY_PERMISSIONS)) {
+ \Drupal::logger('filefield_sources')->log(E_NOTICE, 'The directory %directory is not writable, because it does not have the correct permissions set.', array('%directory' => drupal_realpath($temporary_directory)));
+ drupal_set_message(t('The file could not be transferred because the temporary directory is not writable.'), 'error');
+ return;
+ }
+ // Check that the destination is writable.
+ $directory = $element['#upload_location'];
+ $mode = Settings::get('file_chmod_directory', FILE_CHMOD_DIRECTORY);
+
+ // This first chmod check is for other systems such as S3, which don't
+ // work with file_prepare_directory().
+ if (!drupal_chmod($directory, $mode) && !file_prepare_directory($directory, FILE_CREATE_DIRECTORY)) {
+ $url = $input['filefield_clipboard']['filename'];
+ \Drupal::logger('filefield_sources')->log(E_NOTICE, 'File %file could not be copied, because the destination directory %destination is not configured correctly.', array('%file' => $url, '%destination' => drupal_realpath($directory)));
+ drupal_set_message(t('The specified file %file could not be copied, because the destination directory is not properly configured. This may be caused by a problem with file or directory permissions. More information is available in the system log.', array('%file' => $url)), 'error');
+ return;
+ }
+
+ // Split the file information in mimetype and base64 encoded binary.
+ $base64_data = $input['filefield_clipboard']['contents'];
+ $comma_position = strpos($base64_data, ',');
+ $semicolon_position = strpos($base64_data, ';');
+ $file_contents = base64_decode(substr($base64_data, $comma_position + 1));
+ $mimetype = substr($base64_data, 5, $semicolon_position - 5);
+
+ $extension = \Drupal::service('file.mime_type.guesser.extension')->convertMimeTypeToExtension($mimetype);
+
+ $filename = trim($input['filefield_clipboard']['filename']);
+ $filename = preg_replace('/\.[a-z0-9]{3,4}$/', '', $filename);
+ $filename = (empty($filename) ? 'paste_' . REQUEST_TIME : $filename) . '.' . $extension;
+ $filepath = file_create_filename($filename, $temporary_directory);
+
+ $copy_success = FALSE;
+ if ($fp = @fopen($filepath, 'w')) {
+ fwrite($fp, $file_contents);
+ fclose($fp);
+ $copy_success = TRUE;
+ }
+
+ if ($copy_success && $file = filefield_sources_save_file($filepath, $element['#upload_validators'], $element['#upload_location'])) {
+ if (!in_array($file->id(), $input['fids'])) {
+ $input['fids'][] = $file->id();
+ }
+ }
+
+ // Remove the temporary file generated from paste.
+ @unlink($filepath);
+ }
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function process(array &$element, FormStateInterface $form_state, array &$complete_form) {
+ $element['filefield_clipboard'] = array(
+ '#weight' => 100.5,
+ '#theme' => 'filefield_sources_element',
+ '#source_id' => 'clipboard',
+ // Required for proper theming.
+ '#filefield_source' => TRUE,
+ '#filefield_sources_hint_text' => t('Enter filename then paste.'),
+ '#description' => filefield_sources_element_validation_help($element['#upload_validators']),
+ );
+
+ $element['filefield_clipboard']['capture'] = array(
+ '#type' => 'item',
+ '#markup' => '<div class="filefield-source-clipboard-capture" contenteditable="true"><span class="hint">example_filename.png</span></div> <span class="hint">' . t('ctrl + v') . '</span>',
+ '#description' => t('Enter a file name and paste an image from the clipboard. This feature only works in <a href="http://drupal.org/node/1775902">limited browsers</a>.'),
+ );
+
+ $element['filefield_clipboard']['filename'] = array(
+ '#type' => 'hidden',
+ '#attributes' => array('class' => array('filefield-source-clipboard-filename')),
+ );
+ $element['filefield_clipboard']['contents'] = array(
+ '#type' => 'hidden',
+ '#attributes' => array('class' => array('filefield-source-clipboard-contents')),
+ );
+
+ $class = '\Drupal\file\Element\ManagedFile';
+ $ajax_settings = [
+ 'callback' => [$class, 'uploadAjaxCallback'],
+ 'options' => [
+ 'query' => [
+ 'element_parents' => implode('/', $element['#array_parents']),
+ ],
+ ],
+ 'wrapper' => $element['upload_button']['#ajax']['wrapper'],
+ 'effect' => 'fade',
+ 'progress' => [
+ 'type' => 'throbber',
+ 'message' => t('Transfering file...'),
+ ],
+ ];
+
+ $element['filefield_clipboard']['upload'] = [
+ '#name' => implode('_', $element['#parents']) . '_clipboard_upload_button',
+ '#type' => 'submit',
+ '#value' => t('Upload'),
+ '#attributes' => ['class' => ['js-hide']],
+ '#validate' => [],
+ '#submit' => ['filefield_sources_field_submit'],
+ '#limit_validation_errors' => [$element['#parents']],
+ '#ajax' => $ajax_settings,
+ ];
+
+ return $element;
+ }
+
+ /**
+ * Theme the output of the clipboard element.
+ */
+ public static function element($variables) {
+ $element = $variables['element'];
+
+ return '<div class="filefield-source filefield-source-clipboard clear-block">' . drupal_render_children($element) . '</div>';
+ }
+
+}
projects / yaffs-website / blobdiff