feat: adds asset picker opened metric event

packages/bridge-controller/CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- Add `AssetPickerOpened` unified swap bridge metrics event with an `asset_location` property to indicate `'source'` or `'destination'`. ([#7985](https://github.com/MetaMask/core/pull/7985))
+
 ## [67.0.0]
 
 ### Added

packages/bridge-controller/src/bridge-controller.ts

@@ -997,6 +997,7 @@ export class BridgeController extends StaticIntervalPollingController<BridgePoll
         };
       }
       case UnifiedSwapBridgeEventName.AssetDetailTooltipClicked:
+      case UnifiedSwapBridgeEventName.AssetPickerOpened:
         return baseProperties;
       // These events may be published after the bridge-controller state is reset
       // So the BridgeStatusController populates all the properties

packages/bridge-controller/src/utils/metrics/constants.ts

@@ -21,6 +21,7 @@ export enum UnifiedSwapBridgeEventName {
   AssetDetailTooltipClicked = `${UNIFIED_SWAP_BRIDGE_EVENT_CATEGORY} Asset Detail Tooltip Clicked`,
   QuotesValidationFailed = `${UNIFIED_SWAP_BRIDGE_EVENT_CATEGORY} Quotes Failed Validation`,
   StatusValidationFailed = `${UNIFIED_SWAP_BRIDGE_EVENT_CATEGORY} Status Failed Validation`,
+  AssetPickerOpened = `${UNIFIED_SWAP_BRIDGE_EVENT_CATEGORY} Asset Picker Opened`,
   PollingStatusUpdated = `${UNIFIED_SWAP_BRIDGE_EVENT_CATEGORY} Polling Status Updated`,
 }
 

packages/bridge-controller/src/utils/metrics/types.ts

@@ -218,6 +218,9 @@ type RequiredEventContextFromClientBase = {
     failures: string[];
     refresh_count: number;
   };
+  [UnifiedSwapBridgeEventName.AssetPickerOpened]: {
+    asset_location: 'source' | 'destination';
+  };
   [UnifiedSwapBridgeEventName.PollingStatusUpdated]: TradeData &
     Pick<QuoteFetchData, 'price_impact'> &
     Omit<RequestMetadata, 'security_warnings'> &
@@ -298,6 +301,7 @@ export type EventPropertiesFromControllerState = {
     refresh_count: number;
   };
   [UnifiedSwapBridgeEventName.StatusValidationFailed]: RequestParams;
+  [UnifiedSwapBridgeEventName.AssetPickerOpened]: null;
   [UnifiedSwapBridgeEventName.PollingStatusUpdated]: null;
 };