feat(account-tree-controller): add AccountsController:accountRenamed event handling

packages/account-tree-controller/CHANGELOG.md

@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- Add support for `AccountsController:accountRenamed` event handling for legacy account syncing compatibility ([#6251](https://github.com/MetaMask/core/pull/6251))
 - Add persistence support for user customizations ([#6221](https://github.com/MetaMask/core/pull/6221))
   - New `accountGroupsMetadata` (of new type `AccountTreeGroupPersistedMetadata`) and `accountWalletsMetadata` (of new type `AccountTreeWalletPersistedMetadata`) state properties to persist custom names, pinning, and hiding states.
   - Custom names and metadata survive controller initialization and tree rebuilds.

packages/account-tree-controller/src/AccountTreeController.test.ts

@@ -223,6 +223,7 @@ function getAccountTreeControllerMessenger(
     name: 'AccountTreeController',
     allowedEvents: [
       'AccountsController:accountAdded',
+      'AccountsController:accountRenamed',
       'AccountsController:accountRemoved',
       'AccountsController:selectedAccountChange',
     ],
@@ -1017,6 +1018,89 @@ describe('AccountTreeController', () => {
     });
   });
 
+  describe('on AccountsController:accountRenamed', () => {
+    it('renames an account in the tree if the renamed internal account is of type KeyringTypes.hd', () => {
+      const { controller, messenger } = setup({
+        accounts: [MOCK_HD_ACCOUNT_1],
+        keyrings: [MOCK_HD_KEYRING_1],
+      });
+      controller.init();
+
+      const newName = 'New Account Name';
+      messenger.publish('AccountsController:accountRenamed', {
+        ...MOCK_HD_ACCOUNT_1,
+        metadata: {
+          ...MOCK_HD_ACCOUNT_1.metadata,
+          name: newName,
+        },
+      });
+
+      const walletId = toMultichainAccountWalletId(
+        MOCK_HD_KEYRING_1.metadata.id,
+      );
+      const group = toMultichainAccountGroupId(
+        walletId,
+        MOCK_HD_ACCOUNT_1.options.entropy.groupIndex,
+      );
+
+      expect(
+        controller.state.accountTree.wallets[walletId]?.groups[group],
+      ).toBeDefined();
+      expect(
+        controller.state.accountTree.wallets[walletId]?.groups[group].metadata
+          .name,
+      ).toBe(newName);
+      expect(
+        controller.state.accountTree.wallets[walletId]?.groups[group].accounts,
+      ).toContain(MOCK_HD_ACCOUNT_1.id);
+      expect(
+        controller.state.accountTree.wallets[walletId]?.metadata.name,
+      ).toBe('Wallet 1');
+    });
+
+    it('does not rename an account in the tree if the renamed internal account is not of type KeyringTypes.hd', () => {
+      const { controller, messenger } = setup({
+        accounts: [MOCK_HD_ACCOUNT_1],
+        keyrings: [MOCK_HD_KEYRING_1],
+      });
+      controller.init();
+
+      const newName = 'New Account Name';
+      messenger.publish('AccountsController:accountRenamed', {
+        ...MOCK_HD_ACCOUNT_1,
+        metadata: {
+          ...MOCK_HD_ACCOUNT_1.metadata,
+          keyring: {
+            type: KeyringTypes.simple,
+          },
+          name: newName,
+        },
+      });
+
+      const walletId = toMultichainAccountWalletId(
+        MOCK_HD_KEYRING_1.metadata.id,
+      );
+      const group = toMultichainAccountGroupId(
+        walletId,
+        MOCK_HD_ACCOUNT_1.options.entropy.groupIndex,
+      );
+
+      expect(
+        controller.state.accountTree.wallets[walletId]?.groups[group],
+      ).toBeDefined();
+      expect(
+        controller.state.accountTree.wallets[walletId]?.groups[group].metadata
+          .name,
+      ).toBe(MOCK_HD_ACCOUNT_1.metadata.name);
+      expect(
+        controller.state.accountTree.wallets[walletId]?.groups[group].accounts,
+      ).toContain(MOCK_HD_ACCOUNT_1.id);
+      expect(
+        controller.state.accountTree.wallets[walletId]?.metadata.name,
+      ).toBe('Wallet 1');
+    });
+  });
+
   describe('getAccountWallet/getAccountWalletOrThrow', () => {
     it('gets a wallet using its ID', () => {
       const { controller } = setup({

packages/account-tree-controller/src/AccountTreeController.ts

@@ -4,6 +4,7 @@ import type { AccountId } from '@metamask/accounts-controller';
 import type { StateMetadata } from '@metamask/base-controller';
 import { BaseController } from '@metamask/base-controller';
 import { isEvmAccountType } from '@metamask/keyring-api';
+import { KeyringTypes } from '@metamask/keyring-controller';
 import type { InternalAccount } from '@metamask/keyring-internal-api';
 
 import type { AccountGroupObject } from './group';
@@ -138,6 +139,13 @@ export class AccountTreeController extends BaseController<
       },
     );
 
+    this.messagingSystem.subscribe(
+      'AccountsController:accountRenamed',
+      (account) => {
+        this.#handleAccountRenamed(account);
+      },
+    );
+
     this.#registerMessageHandlers();
   }
 
@@ -316,6 +324,29 @@ export class AccountTreeController extends BaseController<
     }
   }
 
+  #handleAccountRenamed(account: InternalAccount) {
+    // This method is only there to support legacy account syncing programmatic renames.
+    // Since legacy account syncing only syncs HD EVM accounts, we only
+    // handle HD EVM accounts here.
+    if (account.metadata.keyring.type !== (KeyringTypes.hd as string)) {
+      return;
+    }
+
+    const context = this.#accountIdToContext.get(account.id);
+
+    if (context) {
+      const { walletId, groupId } = context;
+
+      const wallet = this.state.accountTree.wallets[walletId];
+      if (wallet) {
+        const group = wallet.groups[groupId];
+        if (group) {
+          this.setAccountGroupName(groupId, account.metadata.name);
+        }
+      }
+    }
+  }
+
   /**
    * Helper method to prune a group if it holds no accounts and additionally
    * prune the wallet if it holds no groups. This action should take place

packages/account-tree-controller/src/types.ts

@@ -1,6 +1,7 @@
 import type { AccountGroupId, AccountWalletId } from '@metamask/account-api';
 import type {
   AccountsControllerAccountAddedEvent,
+  AccountsControllerAccountRenamedEvent,
   AccountsControllerAccountRemovedEvent,
   AccountsControllerGetAccountAction,
   AccountsControllerGetSelectedAccountAction,
@@ -95,6 +96,7 @@ export type AccountTreeControllerStateChangeEvent = ControllerStateChangeEvent<
 
 export type AllowedEvents =
   | AccountsControllerAccountAddedEvent
+  | AccountsControllerAccountRenamedEvent
   | AccountsControllerAccountRemovedEvent
   | AccountsControllerSelectedAccountChangeEvent;