Give the native call component its view of Matrix

The factory lives in libraries/matrix/impl because that is the only module compiled against the Rust SDK, and is app-scoped because a call is started for whichever account it belongs to rather than the one on screen. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-11-02 12:07:28 +00:00 · 2026-09-22 21:04:04 +02:00
parent 0d36f70c96
commit 43a1364671
4 changed files with 108 additions and 3 deletions
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2026 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.matrix.impl.di
+
+import dev.zacsweers.metro.AppScope
+import dev.zacsweers.metro.ContributesBinding
+import io.element.android.call.api.matrix.ElementCallMatrixTransport
+import io.element.android.call.matrix.ElementCallSdkTransport
+import io.element.android.features.callnative.api.ElementCallTransportFactory
+import io.element.android.libraries.matrix.api.MatrixClient
+import io.element.android.libraries.matrix.impl.RustMatrixClient
+
+/**
+ * Gives the native call component its view of Matrix.
+ *
+ * Here because this is the only module in the app compiled against the Rust SDK, and the component's
+ * turnkey transport needs a raw SDK client. No feature module ever sees the SDK, the rule that no
+ * feature depends on `libraries/matrix/impl` still holds, and the SDK version contract is checked where
+ * the app's own SDK pin lives.
+ *
+ * The transport is built on the client's own coroutine scope, which is what ties it to the session: the
+ * component has no shutdown of its own, so cancelling that scope at logout is the only thing that stops
+ * the RTC core and its to-device subscription.
+ */
+@ContributesBinding(AppScope::class)
+class DefaultElementCallTransportFactory : ElementCallTransportFactory {
+    override fun create(client: MatrixClient): ElementCallMatrixTransport {
+        return ElementCallSdkTransport(
+            client = (client as RustMatrixClient).innerClient,
+            sessionScope = client.sessionCoroutineScope,
+        )
+    }
+}