4 files changed, 46 insertions, 0 deletions
diff --git a/lib/private/Collaboration/Resources/Manager.php b/lib/private/Collaboration/Resources/Manager.php
index 82a14f47d9e..cc09089c711 100644
--- a/lib/private/Collaboration/Resources/Manager.php
+++ b/lib/private/Collaboration/Resources/Manager.php
@@ -120,6 +120,22 @@ class Manager implements IManager {
 	}
 
 	/**
+	 *
+	 * @param IResource $resource
+	 * @return string
+	 */
+	public function getIconClass(IResource $resource): string {
+		foreach ($this->getProviders() as $provider) {
+			try {
+				return $provider->getIconClass($resource);
+			} catch (ResourceException $e) {
+			}
+		}
+
+		return '';
+	}
+
+	/**
 	 * Can a user/guest access the collection
 	 *
 	 * @param IResource $resource
diff --git a/lib/private/Collaboration/Resources/Resource.php b/lib/private/Collaboration/Resources/Resource.php
index 3013f1f5c48..2f491663a88 100644
--- a/lib/private/Collaboration/Resources/Resource.php
+++ b/lib/private/Collaboration/Resources/Resource.php
@@ -47,6 +47,9 @@ class Resource implements IResource {
 	/** @var string|null */
 	protected $name;
 
+	/** @var string|null */
+	protected $iconClass;
+
 	public function __construct(
 		IManager $manager,
 		IDBConnection $connection,
@@ -88,6 +91,18 @@ class Resource implements IResource {
 	}
 
 	/**
+	 * @return string
+	 * @since 15.0.0
+	 */
+	public function getIconClass(): string {
+		if ($this->iconClass === null) {
+			$this->iconClass = $this->manager->getIconClass($this);
+		}
+
+		return $this->iconClass;
+	}
+
+	/**
 	 * Can a user/guest access the resource
 	 *
 	 * @param IUser $user
diff --git a/lib/public/Collaboration/Resources/IProvider.php b/lib/public/Collaboration/Resources/IProvider.php
index bf338113005..c5f6f7ed560 100644
--- a/lib/public/Collaboration/Resources/IProvider.php
+++ b/lib/public/Collaboration/Resources/IProvider.php
@@ -36,6 +36,15 @@ interface IProvider {
 	public function getName(IResource $resource): string;
 
 	/**
+	 * Get the icon class of a resource
+	 *
+	 * @param IResource $resource
+	 * @return string
+	 * @since 15.0.0
+	 */
+	public function getIconClass(IResource $resource): string;
+
+	/**
 	 * Can a user/guest access the collection
 	 *
 	 * @param IResource $resource
diff --git a/lib/public/Collaboration/Resources/IResource.php b/lib/public/Collaboration/Resources/IResource.php
index 242ad9432d0..9a4b2b30d10 100644
--- a/lib/public/Collaboration/Resources/IResource.php
+++ b/lib/public/Collaboration/Resources/IResource.php
@@ -48,6 +48,12 @@ interface IResource {
 	public function getName(): string;
 
 	/**
+	 * @return string
+	 * @since 15.0.0
+	 */
+	public function getIconClass(): string;
+
+	/**
 	 * Can a user/guest access the resource
 	 *
 	 * @param IUser $user