fix: integrate multichainAssetsController

app/scripts/metamask-controller.js

@@ -14,6 +14,7 @@ import {
   fetchMultiExchangeRate,
   TokenBalancesController,
   MultichainBalancesController,
+  MultichainAssetsController,
 } from '@metamask/assets-controllers';
 import { JsonRpcEngine } from '@metamask/json-rpc-engine';
 import { createEngineStream } from '@metamask/json-rpc-middleware-stream';
@@ -785,6 +786,30 @@ export default class MetamaskController extends EventEmitter {
       disabled: !this.preferencesController.state.useNftDetection,
     });
 
+    // MultichainAssetsController
+    const multichainAssetsControllerMessenger =
+      this.controllerMessenger.getRestricted({
+        name: 'MultichainAssetsController',
+        allowedEvents: [
+          'AccountsController:accountAdded',
+          'AccountsController:accountRemoved',
+          'AccountsController:accountAssetListUpdated',
+        ],
+        allowedActions: [
+          'SnapController:handleRequest',
+          'SnapController:getAll',
+          'PermissionController:getPermissions',
+          'AccountsController:listMultichainAccounts',
+        ],
+      });
+
+    this.multichainAssetsController = new MultichainAssetsController({
+      state: initState.MultichainAssetsController,
+      messenger: multichainAssetsControllerMessenger,
+    });
+
+    // MultichainAssetsController
+
     const metaMetricsControllerMessenger =
       this.controllerMessenger.getRestricted({
         name: 'MetaMetricsController',
@@ -2271,6 +2296,7 @@ export default class MetamaskController extends EventEmitter {
       AppStateController: this.appStateController,
       AppMetadataController: this.appMetadataController,
       MultichainBalancesController: this.multichainBalancesController,
+      MultichainAssetsController: this.multichainAssetsController,
       ///: BEGIN:ONLY_INCLUDE_IF(build-flask)
       MultichainTransactionsController: this.multichainTransactionsController,
       ///: END:ONLY_INCLUDE_IF
@@ -2324,6 +2350,7 @@ export default class MetamaskController extends EventEmitter {
         AppStateController: this.appStateController,
         AppMetadataController: this.appMetadataController,
         MultichainBalancesController: this.multichainBalancesController,
+        MultichainAssetsController: this.multichainAssetsController,
         ///: BEGIN:ONLY_INCLUDE_IF(build-flask)
         MultichainTransactionsController: this.multichainTransactionsController,
         ///: END:ONLY_INCLUDE_IF

ui/selectors/selectors.js

@@ -632,6 +632,14 @@ export function getSelectedAccountTokensAcrossChains(state) {
   return tokensByChain;
 }
 
+export function getAllNonEvmTokens(state) {
+  return state.metamask.accountsAssets;
+}
+
+export function getAllNonEvmMetadata(state) {
+  return state.metamask.assetsMetadata;
+}
+
 /**
  * Retrieves native token information (symbol, decimals, name) for a given chainId from the state,
  * without hardcoding any values.