Message editing (#298)

* Add translation for editing mode

* Add `is_editable` flag to timeline item

* Add edit api implementation

* Add edit context menu action

* Add changelog

* Update Rust package

* Add isEditable into video timeline item

* Fix cyclomatic complexity

* Fix video item thumbnail loading

* Fix not updating timeline layout

ElementX/Sources/Services/Room/MockRoomProxy.swift

@@ -65,6 +65,10 @@ struct MockRoomProxy: RoomProxyProtocol {
     func sendMessage(_ message: String, inReplyToEventId: String? = nil) async -> Result<Void, RoomProxyError> {
         .failure(.failedSendingMessage)
     }
+
+    func editMessage(_ newMessage: String, originalEventId: String) async -> Result<Void, RoomProxyError> {
+        .failure(.failedSendingMessage)
+    }
     
     func redact(_ eventID: String) async -> Result<Void, RoomProxyError> {
         .failure(.failedRedactingEvent)

ElementX/Sources/Services/Room/RoomProxy.swift

@@ -188,6 +188,24 @@ class RoomProxy: RoomProxyProtocol {
             }
         }
     }
+
+    func editMessage(_ newMessage: String, originalEventId: String) async -> Result<Void, RoomProxyError> {
+        sendMessageBgTask = backgroundTaskService.startBackgroundTask(withName: "SendMessage", isReusable: true)
+        defer {
+            sendMessageBgTask?.stop()
+        }
+
+        let transactionId = genTransactionId()
+
+        return await Task.dispatch(on: .global()) {
+            do {
+                try self.room.edit(newMsg: newMessage, originalEventId: originalEventId, txnId: transactionId)
+                return .success(())
+            } catch {
+                return .failure(.failedSendingMessage)
+            }
+        }
+    }
     
     func redact(_ eventID: String) async -> Result<Void, RoomProxyError> {
         let transactionID = genTransactionId()

ElementX/Sources/Services/Room/RoomProxyProtocol.swift

@@ -59,6 +59,8 @@ protocol RoomProxyProtocol {
     func paginateBackwards(count: UInt) async -> Result<Void, RoomProxyError>
     
     func sendMessage(_ message: String, inReplyToEventId: String?) async -> Result<Void, RoomProxyError>
+
+    func editMessage(_ newMessage: String, originalEventId: String) async -> Result<Void, RoomProxyError>
     
     func redact(_ eventID: String) async -> Result<Void, RoomProxyError>
 }