1 files changed, 39 insertions, 0 deletions
diff --git a/includes/external/matrix/node_modules/matrix-js-sdk/src/models/related-relations.ts b/includes/external/matrix/node_modules/matrix-js-sdk/src/models/related-relations.ts
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+++ b/includes/external/matrix/node_modules/matrix-js-sdk/src/models/related-relations.ts
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+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { Relations, RelationsEvent, EventHandlerMap } from "./relations";
+import { MatrixEvent } from "./event";
+import { Listener } from "./typed-event-emitter";
+
+export class RelatedRelations {
+    private relations: Relations[];
+
+    public constructor(relations: Relations[]) {
+        this.relations = relations.filter((r) => !!r);
+    }
+
+    public getRelations(): MatrixEvent[] {
+        return this.relations.reduce<MatrixEvent[]>((c, p) => [...c, ...p.getRelations()], []);
+    }
+
+    public on<T extends RelationsEvent>(ev: T, fn: Listener<RelationsEvent, EventHandlerMap, T>): void {
+        this.relations.forEach((r) => r.on(ev, fn));
+    }
+
+    public off<T extends RelationsEvent>(ev: T, fn: Listener<RelationsEvent, EventHandlerMap, T>): void {
+        this.relations.forEach((r) => r.off(ev, fn));
+    }
+}