fixup: Avoid copying an enum and conditionally derive uniffi::Enum in…

…stead

bindings/matrix-sdk-ffi/src/client_builder.rs

@@ -1,7 +1,7 @@
 use std::{fs, path::PathBuf, sync::Arc};
 
 use matrix_sdk::{
-    encryption::EncryptionSettings,
+    encryption::{BackupDownloadStrategy, EncryptionSettings},
     reqwest::Certificate,
     ruma::{
         api::{error::UnknownVersionError, MatrixVersion},
@@ -27,44 +27,6 @@ enum HomeserverConfig {
     ServerNameOrUrl(String),
 }
 
-#[derive(uniffi::Enum)]
-pub enum BackupDownloadStrategy {
-    /// Automatically download all room keys from the backup when the backup
-    /// recovery key has been received. The backup recovery key can be received
-    /// in two ways:
-    ///
-    /// 1. Received as a `m.secret.send` to-device event, after a successful
-    ///    interactive verification.
-    /// 2. Imported from secret storage (4S) using the
-    ///    [`SecretStore::import_secrets()`] method.
-    ///
-    /// [`SecretStore::import_secrets()`]: crate::encryption::secret_storage::SecretStore::import_secrets
-    OneShot,
-
-    /// Attempt to download a single room key if an event fails to be decrypted.
-    AfterDecryptionFailure,
-
-    /// Don't download any room keys automatically. The user can manually
-    /// download room keys using the [`Backups::download_room_key()`] methods.
-    Manual,
-}
-
-impl From<BackupDownloadStrategy> for matrix_sdk::encryption::BackupDownloadStrategy {
-    fn from(strategy: BackupDownloadStrategy) -> Self {
-        match strategy {
-            BackupDownloadStrategy::OneShot => {
-                matrix_sdk::encryption::BackupDownloadStrategy::OneShot
-            }
-            BackupDownloadStrategy::AfterDecryptionFailure => {
-                matrix_sdk::encryption::BackupDownloadStrategy::AfterDecryptionFailure
-            }
-            BackupDownloadStrategy::Manual => {
-                matrix_sdk::encryption::BackupDownloadStrategy::Manual
-            }
-        }
-    }
-}
-
 #[derive(Debug, thiserror::Error, uniffi::Error)]
 #[uniffi(flat_error)]
 pub enum ClientBuildError {

crates/matrix-sdk/src/encryption/mod.rs

@@ -161,6 +161,7 @@ pub struct EncryptionSettings {
 
 /// Settings for end-to-end encryption features.
 #[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
+#[cfg_attr(feature = "uniffi", derive(uniffi::Enum))]
 pub enum BackupDownloadStrategy {
     /// Automatically download all room keys from the backup when the backup
     /// recovery key has been received. The backup recovery key can be received