From f7323c065a086533ce8c7f0f0cb3f69a80539992 Mon Sep 17 00:00:00 2001
From: tobi <31960611+tsmethurst@users.noreply.github.com>
Date: Sat, 26 Apr 2025 15:03:05 +0200
Subject: [feature] Update attachment format, receive + send `focalPoint` prop
 + use it on the frontend (#4052)

* [feature] Update attachment format, receive + send `focalPoint` prop + use it on the frontend

* whoops

* boop

* restore function signature of ExtractAttachments
---
 internal/ap/interfaces.go | 31 ++++++++++++++++++++++++++++---
 1 file changed, 28 insertions(+), 3 deletions(-)

(limited to 'internal/ap/interfaces.go')

diff --git a/internal/ap/interfaces.go b/internal/ap/interfaces.go
index 1dcc6afef..28b5c0d20 100644
--- a/internal/ap/interfaces.go
+++ b/internal/ap/interfaces.go
@@ -165,6 +165,29 @@ func ToApprovable(t vocab.Type) (Approvable, bool) {
 	return approvable, true
 }
 
+// IsAttachmentable returns whether AS vocab type name
+// is something that can be cast to Attachmentable.
+func IsAttachmentable(typeName string) bool {
+	switch typeName {
+	case ObjectAudio,
+		ObjectDocument,
+		ObjectImage,
+		ObjectVideo:
+		return true
+	default:
+		return false
+	}
+}
+
+// ToAttachmentable safely tries to cast vocab.Type as Attachmentable.
+func ToAttachmentable(t vocab.Type) (Attachmentable, bool) {
+	attachmentable, ok := t.(Attachmentable)
+	if !ok || !IsAttachmentable(t.GetTypeName()) {
+		return nil, false
+	}
+	return attachmentable, true
+}
+
 // Activityable represents the minimum activitypub interface for representing an 'activity'.
 // (see: IsActivityable() for types implementing this, though you MUST make sure to check
 // the typeName as this bare interface may be implementable by non-Activityable types).
@@ -628,9 +651,11 @@ type WithBlurhash interface {
 	SetTootBlurhash(vocab.TootBlurhashProperty)
 }
 
-// type withFocalPoint interface {
-// 	// TODO
-// }
+// WithFocalPoint represents an object with TootFocalPointProperty.
+type WithFocalPoint interface {
+	GetTootFocalPoint() vocab.TootFocalPointProperty
+	SetTootFocalPoint(vocab.TootFocalPointProperty)
+}
 
 // WithHref represents an activity with ActivityStreamsHrefProperty
 type WithHref interface {
-- 
cgit v1.2.3