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[yaffs-website] / web / core / modules / media / src / Plugin / media / Source / File.php

diff --git a/web/core/modules/media/src/Plugin/media/Source/File.php b/web/core/modules/media/src/Plugin/media/Source/File.php
new file mode 100644 (file)
index 0000000..b6ad979
--- /dev/null
+++ b/web/core/modules/media/src/Plugin/media/Source/File.php
@@ -0,0 +1,95 @@
+<?php
+
+namespace Drupal\media\Plugin\media\Source;
+
+use Drupal\file\FileInterface;
+use Drupal\media\MediaInterface;
+use Drupal\media\MediaTypeInterface;
+use Drupal\media\MediaSourceBase;
+
+/**
+ * File entity media source.
+ *
+ * @see \Drupal\file\FileInterface
+ *
+ * @MediaSource(
+ *   id = "file",
+ *   label = @Translation("File"),
+ *   description = @Translation("Use local files for reusable media."),
+ *   allowed_field_types = {"file"},
+ *   default_thumbnail_filename = "generic.png"
+ * )
+ */
+class File extends MediaSourceBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getMetadataAttributes() {
+    return [];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getMetadata(MediaInterface $media, $attribute_name) {
+    /** @var \Drupal\file\FileInterface $file */
+    $file = $media->get($this->configuration['source_field'])->entity;
+    // If the source field is not required, it may be empty.
+    if (!$file) {
+      return parent::getMetadata($media, $attribute_name);
+    }
+    switch ($attribute_name) {
+      case 'default_name':
+        return $file->getFilename();
+
+      case 'thumbnail_uri':
+        return $this->getThumbnail($file) ?: parent::getMetadata($media, $attribute_name);
+
+      default:
+        return parent::getMetadata($media, $attribute_name);
+    }
+  }
+
+  /**
+   * Gets the thumbnail image URI based on a file entity.
+   *
+   * @param \Drupal\file\FileInterface $file
+   *   A file entity.
+   *
+   * @return string
+   *   File URI of the thumbnail image or NULL if there is no specific icon.
+   */
+  protected function getThumbnail(FileInterface $file) {
+    $icon_base = $this->configFactory->get('media.settings')->get('icon_base_uri');
+
+    // We try to automatically use the most specific icon present in the
+    // $icon_base directory, based on the MIME type. For instance, if an
+    // icon file named "pdf.png" is present, it will be used if the file
+    // matches this MIME type.
+    $mimetype = $file->getMimeType();
+    $mimetype = explode('/', $mimetype);
+
+    $icon_names = [
+      $mimetype[0] . '--' . $mimetype[1],
+      $mimetype[1],
+      $mimetype[0],
+    ];
+    foreach ($icon_names as $icon_name) {
+      $thumbnail = $icon_base . '/' . $icon_name . '.png';
+      if (is_file($thumbnail)) {
+        return $thumbnail;
+      }
+    }
+
+    return NULL;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function createSourceField(MediaTypeInterface $type) {
+    return parent::createSourceField($type)->set('settings', ['file_extensions' => 'txt doc docx pdf']);
+  }
+
+}