refactor(core): Remove custom event and replay behavior.

These behaviors have been moved back to g3.

goldens/public-api/core/primitives/event-dispatch/index.md

@@ -37,8 +37,6 @@ export class EventContract implements UnrenamedEventContract {
     addEvent(eventType: string, prefixedEventType?: string): void;
     cleanUp(): void;
     // (undocumented)
-    static CUSTOM_EVENT_SUPPORT: boolean;
-    // (undocumented)
     ecaacs?: (updateEventInfoForA11yClick: typeof a11yClickLib.updateEventInfoForA11yClick, preventDefaultForA11yClick: typeof a11yClickLib.preventDefaultForA11yClick, populateClickOnlyAction: typeof a11yClickLib.populateClickOnlyAction) => void;
     ecrd(dispatcher: Dispatcher_2, restriction: Restriction): void;
     exportAddA11yClickSupport(): void;

packages/core/primitives/event-dispatch/src/action_resolver.ts

@@ -32,7 +32,6 @@ const DEFAULT_EVENT_TYPE: string = EventType.CLICK;
 /** Resolves actions for Events. */
 export class ActionResolver {
   private a11yClickSupport: boolean = false;
-  private readonly customEventSupport: boolean;
   private readonly syntheticMouseEventSupport: boolean;
 
   private updateEventInfoForA11yClick?: (eventInfo: eventInfoLib.EventInfo) => void = undefined;
@@ -46,30 +45,14 @@ export class ActionResolver {
   ) => void = undefined;
 
   constructor({
-    customEventSupport = false,
     syntheticMouseEventSupport = false,
   }: {
-    customEventSupport?: boolean;
     syntheticMouseEventSupport?: boolean;
   } = {}) {
-    this.customEventSupport = customEventSupport;
     this.syntheticMouseEventSupport = syntheticMouseEventSupport;
   }
 
   resolve(eventInfo: eventInfoLib.EventInfo) {
-    if (this.customEventSupport) {
-      if (eventInfoLib.getEventType(eventInfo) === EventType.CUSTOM) {
-        const detail = (eventInfoLib.getEvent(eventInfo) as CustomEvent).detail;
-        // For custom events, use a secondary dispatch based on the internal
-        // custom type of the event.
-        if (!detail || !detail['_type']) {
-          // This should never happen.
-          return;
-        }
-        eventInfoLib.setEventType(eventInfo, detail['_type']);
-      }
-    }
-
     this.populateAction(eventInfo);
   }
 

packages/core/primitives/event-dispatch/src/event_contract_defines.ts

@@ -17,9 +17,3 @@ export const A11Y_CLICK_SUPPORT = false;
  * flag can be overridden in a build rule.
  */
 export const MOUSE_SPECIAL_SUPPORT = false;
-
-/**
- * @define Support for custom events, which are type EventType.CUSTOM. These are
- * native DOM events with an additional type field and an optional payload.
- */
-export const CUSTOM_EVENT_SUPPORT = false;

packages/core/primitives/event-dispatch/src/eventcontract.ts

@@ -35,11 +35,7 @@ import {ActionResolver} from './action_resolver';
 import {EarlyJsactionData, EarlyJsactionDataContainer} from './earlyeventcontract';
 import * as eventLib from './event';
 import {EventContractContainerManager} from './event_contract_container';
-import {
-  A11Y_CLICK_SUPPORT,
-  CUSTOM_EVENT_SUPPORT,
-  MOUSE_SPECIAL_SUPPORT,
-} from './event_contract_defines';
+import {A11Y_CLICK_SUPPORT, MOUSE_SPECIAL_SUPPORT} from './event_contract_defines';
 import * as eventInfoLib from './event_info';
 import {EventType} from './event_type';
 import {Restriction} from './restriction';
@@ -87,14 +83,12 @@ type EventHandler = (eventType: string, event: Event, container: Element) => voi
  * be delay loaded in a generic way.
  */
 export class EventContract implements UnrenamedEventContract {
-  static CUSTOM_EVENT_SUPPORT = CUSTOM_EVENT_SUPPORT;
   static A11Y_CLICK_SUPPORT = A11Y_CLICK_SUPPORT;
   static MOUSE_SPECIAL_SUPPORT = MOUSE_SPECIAL_SUPPORT;
 
   private containerManager: EventContractContainerManager | null;
 
   private readonly actionResolver = new ActionResolver({
-    customEventSupport: EventContract.CUSTOM_EVENT_SUPPORT,
     syntheticMouseEventSupport: EventContract.MOUSE_SPECIAL_SUPPORT,
   });
 
@@ -135,9 +129,6 @@ export class EventContract implements UnrenamedEventContract {
 
   constructor(containerManager: EventContractContainerManager) {
     this.containerManager = containerManager;
-    if (EventContract.CUSTOM_EVENT_SUPPORT) {
-      this.addEvent(EventType.CUSTOM);
-    }
     if (EventContract.A11Y_CLICK_SUPPORT) {
       // Add a11y click support to the `EventContract`.
       this.addA11yClickSupport();