Provide method of extracting the largest image from the manifest.

src/Entity/RealFavicon.php

@@ -4,6 +4,7 @@
 
 use Drupal\Core\Config\Entity\ConfigEntityBase;
 use Drupal\Core\Entity\EntityStorageInterface;
+use Drupal\Component\Serialization\Json;
 
 /**
  * Defines the Favicon entity.
@@ -54,6 +55,13 @@ class RealFavicon extends ConfigEntityBase implements RealFaviconInterface {
  */
  protected $label;
 
+ /**
+ * The manifest of this package.
+ *
+ * @var array
+ */
+ protected $manifest = [];
+
  /**
  * The folder where Real Favicons exist.
  */
@@ -71,13 +79,52 @@ public function setTagsAsString($string) {
  }
 
  /**
- * Set the tags from string.
+ * Get the tags as string.
  */
  public function getTagsAsString() {
  $tags = $this->get('tags');
  return $tags ? implode(PHP_EOL, $tags) : '';
  }
 
+ /**
+ * Get the tags.
+ */
+ public function getTags() {
+ return $this->get('tags');
+ }
+
+ /**
+ * Get the manifest.
+ */
+ public function getManifest() {
+ if (empty($this->manifest)) {
+ $this->manifest = [];
+ $path = $this->getDirectory() . '/manifest.json';
+ if (file_exists($path)) {
+ $data = file_get_contents($path);
+ $this->manifest = Json::decode($data);
+ }
+ }
+ return $this->manifest;
+ }
+
+ /**
+ * Get the largest manifest image.
+ */
+ public function getManifestLargeImage() {
+ $image = '';
+ if ($manifest = $this->getManifest()) {
+ $size = 0;
+ foreach ($manifest['icons'] as $icon) {
+ $icon_size = explode('x', $icon['sizes']);
+ if ($icon_size[0] > $size) {
+ $image = $this->getDirectory() . $icon['src'];
+ }
+ }
+ }
+ return $image;
+ }
+
  /**
  * Set the archive as base64 encoded string.
  */