[Link new device] Automatically rotate the QR Code

libraries/matrix/api/src/main/kotlin/io/element/android/libraries/matrix/api/linknewdevice/LinkMobileHandler.kt

@@ -18,6 +18,7 @@ sealed interface LinkMobileStep {
     data object Uninitialized : LinkMobileStep
     data object Starting : LinkMobileStep
     data class QrReady(val data: String) : LinkMobileStep
+    data object QrRotating : LinkMobileStep
     data class WaitingForAuth(val verificationUri: String) : LinkMobileStep
     data class QrScanned(val checkCodeSender: CheckCodeSender) : LinkMobileStep
     data class Error(val errorType: ErrorType) : LinkMobileStep

libraries/matrix/impl/src/main/kotlin/io/element/android/libraries/matrix/impl/linknewdevice/RustLinkMobileHandler.kt

@@ -53,7 +53,14 @@ class RustLinkMobileHandler(
             _linkMobileStep.emit(LinkMobileStep.Done)
         } catch (e: HumanQrGrantLoginException) {
             Timber.tag(tag.value).w(e, "Error during QR login grant")
-            _linkMobileStep.emit(LinkMobileStep.Error(e.map()))
+            // Catch timeout here?
+            if (_linkMobileStep.value is LinkMobileStep.QrReady
+                && e is HumanQrGrantLoginException.NotFound) {
+                Timber.tag(tag.value).d("Emit QrRotating due to HumanQrGrantLoginException.NotFound")
+                _linkMobileStep.emit(LinkMobileStep.QrRotating)
+            } else {
+                _linkMobileStep.emit(LinkMobileStep.Error(e.map()))
+            }
         }
     }