Scaffolding for requestFormReset API

This sets adds a new ReactDOM export called requestFormReset, including
setting up the export and creating a method on the internal ReactDOM
dispatcher. It does not yet add any implementation.

Doing this in its own commit for review purposes.

The API itself is explained in the next commit.

packages/react-dom-bindings/src/client/ReactFiberConfigDOM.js

@@ -102,6 +102,7 @@ import {listenToAllSupportedEvents} from '../events/DOMPluginEventSystem';
 import {validateLinkPropsForStyleResource} from '../shared/ReactDOMResourceValidation';
 import escapeSelectorAttributeValueInsideDoubleQuotes from './escapeSelectorAttributeValueInsideDoubleQuotes';
 import {flushSyncWork as flushSyncWorkOnAllRoots} from 'react-reconciler/src/ReactFiberWorkLoop';
+import {requestFormReset as requestFormResetOnFiber} from 'react-reconciler/src/ReactFiberHooks';
 
 import ReactDOMSharedInternals from 'shared/ReactDOMSharedInternals';
 
@@ -1928,6 +1929,7 @@ ReactDOMSharedInternals.d /* ReactDOMCurrentDispatcher */ = {
   f /* flushSyncWork */: disableLegacyMode
     ? flushSyncWork
     : previousDispatcher.f /* flushSyncWork */,
+  r: requestFormReset,
   D /* prefetchDNS */: prefetchDNS,
   C /* preconnect */: preconnect,
   L /* preload */: preload,
@@ -1951,6 +1953,17 @@ function flushSyncWork() {
   }
 }
 
+function requestFormReset(form: HTMLFormElement) {
+  previousDispatcher.r(/* requestFormReset */ form);
+  const formInst = getInstanceFromNodeDOMTree(form);
+  if (formInst !== null) {
+    requestFormResetOnFiber(formInst);
+  } else {
+    // TODO: What if none of the dispatchers find a matching form instance?
+    // Should we detect this in dev and warn?
+  }
+}
+
 // We expect this to get inlined. It is a function mostly to communicate the special nature of
 // how we resolve the HoistableRoot for ReactDOM.pre*() methods. Because we support calling
 // these methods outside of render there is no way to know which Document or ShadowRoot is 'scoped'

packages/react-dom-bindings/src/server/ReactDOMFlightServerHostDispatcher.js

@@ -28,6 +28,7 @@ const previousDispatcher =
   ReactDOMSharedInternals.d; /* ReactDOMCurrentDispatcher */
 ReactDOMSharedInternals.d /* ReactDOMCurrentDispatcher */ = {
   f /* flushSyncWork */: previousDispatcher.f /* flushSyncWork */,
+  r /* requestFormReset */: previousDispatcher.r /* requestFormReset */,
   D /* prefetchDNS */: prefetchDNS,
   C /* preconnect */: preconnect,
   L /* preload */: preload,

packages/react-dom-bindings/src/server/ReactFizzConfigDOM.js

@@ -88,6 +88,7 @@ const previousDispatcher =
   ReactDOMSharedInternals.d; /* ReactDOMCurrentDispatcher */
 ReactDOMSharedInternals.d /* ReactDOMCurrentDispatcher */ = {
   f /* flushSyncWork */: previousDispatcher.f /* flushSyncWork */,
+  r /* requestFormReset */: previousDispatcher.r /* requestFormReset */,
   D /* prefetchDNS */: prefetchDNS,
   C /* preconnect */: preconnect,
   L /* preload */: preload,

packages/react-dom-bindings/src/shared/ReactDOMFormActions.js

@@ -12,6 +12,7 @@ import type {Awaited} from 'shared/ReactTypes';
 
 import {enableAsyncActions} from 'shared/ReactFeatureFlags';
 import ReactSharedInternals from 'shared/ReactSharedInternals';
+import ReactDOMSharedInternals from 'shared/ReactDOMSharedInternals';
 
 type FormStatusNotPending = {|
   pending: false,
@@ -87,3 +88,8 @@ export function useFormState<S, P>(
     return dispatcher.useFormState(action, initialState, permalink);
   }
 }
+
+export function requestFormReset(form: HTMLFormElement) {
+  ReactDOMSharedInternals.d /* ReactDOMCurrentDispatcher */
+    .r(/* requestFormReset */ form);
+}

packages/react-dom/index.classic.fb.js

@@ -25,6 +25,7 @@ export {
   unstable_runWithPriority, // DO NOT USE: Temporarily exposed to migrate off of Scheduler.runWithPriority.
   useFormStatus,
   useFormState,
+  requestFormReset,
   prefetchDNS,
   preconnect,
   preload,

packages/react-dom/index.experimental.js

@@ -17,6 +17,7 @@ export {
   unstable_runWithPriority, // DO NOT USE: Temporarily exposed to migrate off of Scheduler.runWithPriority.
   useFormStatus,
   useFormState,
+  requestFormReset,
   prefetchDNS,
   preconnect,
   preload,

packages/react-dom/index.js

@@ -20,6 +20,7 @@ export {
   unstable_runWithPriority, // DO NOT USE: Temporarily exposed to migrate off of Scheduler.runWithPriority.
   useFormStatus,
   useFormState,
+  requestFormReset,
   prefetchDNS,
   preconnect,
   preload,

packages/react-dom/index.modern.fb.js

@@ -16,6 +16,7 @@ export {
   unstable_runWithPriority, // DO NOT USE: Temporarily exposed to migrate off of Scheduler.runWithPriority.
   useFormStatus,
   useFormState,
+  requestFormReset,
   prefetchDNS,
   preconnect,
   preload,

packages/react-dom/index.stable.js

@@ -16,6 +16,7 @@ export {
   unstable_batchedUpdates,
   useFormStatus,
   useFormState,
+  requestFormReset,
   prefetchDNS,
   preconnect,
   preload,

packages/react-dom/src/ReactDOMSharedInternals.js

@@ -31,6 +31,7 @@ function noop() {}
 
 const DefaultDispatcher: HostDispatcher = {
   f /* flushSyncWork */: noop,
+  r /* requestFormReset */: noop,
   D /* prefetchDNS */: noop,
   C /* preconnect */: noop,
   L /* preload */: noop,

packages/react-dom/src/ReactDOMSharedInternalsFB.js

@@ -27,6 +27,7 @@ function noop() {}
 
 const DefaultDispatcher: HostDispatcher = {
   f /* flushSyncWork */: noop,
+  r /* requestFormReset */: noop,
   D /* prefetchDNS */: noop,
   C /* preconnect */: noop,
   L /* preload */: noop,

packages/react-dom/src/client/ReactDOM.js

@@ -48,6 +48,7 @@ export {
 export {
   useFormStatus,
   useFormState,
+  requestFormReset,
 } from 'react-dom-bindings/src/shared/ReactDOMFormActions';
 
 if (__DEV__) {

packages/react-dom/src/client/ReactDOMFB.js

@@ -48,6 +48,7 @@ export {
 export {
   useFormStatus,
   useFormState,
+  requestFormReset,
 } from 'react-dom-bindings/src/shared/ReactDOMFormActions';
 
 if (__DEV__) {

packages/react-dom/src/shared/ReactDOMTypes.js

@@ -83,6 +83,7 @@ export type PreinitModuleScriptOptions = {
 
 export type HostDispatcher = {
   f /* flushSyncWork */: () => boolean | void,
+  r /* requestFormReset */: (form: HTMLFormElement) => void,
   D /* prefetchDNS */: (href: string) => void,
   C /* preconnect */: (href: string, crossOrigin?: ?CrossOriginEnum) => void,
   L /* preload */: (

packages/react-reconciler/src/ReactFiberHooks.js

@@ -3008,13 +3008,18 @@ export function startHostTransition<F>(
     // once more of this function is implemented.
     () => {
       // Automatically reset the form when the action completes.
-      requestFormReset(formFiber);
+      requestFormResetImpl(formFiber);
       return callback(formData);
     },
   );
 }
 
-function requestFormReset(formFiber: Fiber) {
+export function requestFormReset(formFiber: Fiber) {
+  // TODO: Not yet implemented. Need to upgrade the fiber to be stateful
+  // before scheduling the form reset.
+}
+
+function requestFormResetImpl(formFiber: Fiber) {
   const transition = requestCurrentTransition();
 
   if (__DEV__) {