Remove passive intervention flag (#19849)

Author: gaearon

packages/react-dom/src/events/DOMPluginEventSystem.js

@@ -51,7 +51,6 @@ import {
   enableLegacyFBSupport,
   enableCreateEventHandleAPI,
   enableScopeAPI,
-  enablePassiveEventIntervention,
   enableEagerRootListeners,
 } from 'shared/ReactFeatureFlags';
 import {
@@ -481,7 +480,7 @@ function addTrappedEventListener(
   // If passive option is not supported, then the event will be
   // active and not passive.
   let isPassiveListener = undefined;
-  if (enablePassiveEventIntervention && passiveBrowserEventsSupported) {
+  if (passiveBrowserEventsSupported) {
     // Browsers introduced an intervention, making these events
     // passive by default on document. React doesn't bind them
     // to document anymore, but changing this now would undo

packages/react-dom/src/events/__tests__/DOMPluginEventSystem-test.internal.js

@@ -3070,15 +3070,7 @@ describe('DOMPluginEventSystem', () => {
 
               expect(allEvents).toEqual(['touchstart', 'touchmove', 'wheel']);
               // These events are passive by default, so we can't preventDefault.
-              if (gate(flags => flags.enablePassiveEventIntervention)) {
-                expect(defaultPreventedEvents).toEqual([]);
-              } else {
-                expect(defaultPreventedEvents).toEqual([
-                  'touchstart',
-                  'touchmove',
-                  'wheel',
-                ]);
-              }
+              expect(defaultPreventedEvents).toEqual([]);
             });
           });
         });

packages/react-dom/src/events/plugins/__tests__/SimpleEventPlugin-test.js

@@ -534,21 +534,17 @@ describe('SimpleEventPlugin', function() {
         container,
       );
 
-      if (gate(flags => flags.enablePassiveEventIntervention)) {
-        if (gate(flags => flags.enableEagerRootListeners)) {
-          expect(passiveEvents).toEqual([
-            'touchstart',
-            'touchstart',
-            'touchmove',
-            'touchmove',
-            'wheel',
-            'wheel',
-          ]);
-        } else {
-          expect(passiveEvents).toEqual(['touchstart', 'touchmove', 'wheel']);
-        }
+      if (gate(flags => flags.enableEagerRootListeners)) {
+        expect(passiveEvents).toEqual([
+          'touchstart',
+          'touchstart',
+          'touchmove',
+          'touchmove',
+          'wheel',
+          'wheel',
+        ]);
       } else {
-        expect(passiveEvents).toEqual([]);
+        expect(passiveEvents).toEqual(['touchstart', 'touchmove', 'wheel']);
       }
     });
   });

packages/shared/ReactFeatureFlags.js

@@ -133,9 +133,6 @@ export const decoupleUpdatePriorityFromScheduler = false;
 
 export const enableDiscreteEventFlushingChange = false;
 
-// https://github.com/facebook/react/pull/19654
-export const enablePassiveEventIntervention = true;
-
 export const enableEagerRootListeners = true;
 
 export const disableSchedulerTimeoutInWorkLoop = false;

packages/shared/forks/ReactFeatureFlags.native-fb.js

@@ -49,7 +49,6 @@ export const enableNewReconciler = false;
 export const deferRenderPhaseUpdateToNextBatch = true;
 export const decoupleUpdatePriorityFromScheduler = false;
 export const enableDiscreteEventFlushingChange = false;
-export const enablePassiveEventIntervention = true;
 export const enableEagerRootListeners = true;
 export const disableSchedulerTimeoutInWorkLoop = false;
 

packages/shared/forks/ReactFeatureFlags.native-oss.js

@@ -48,7 +48,6 @@ export const enableNewReconciler = false;
 export const deferRenderPhaseUpdateToNextBatch = true;
 export const decoupleUpdatePriorityFromScheduler = false;
 export const enableDiscreteEventFlushingChange = false;
-export const enablePassiveEventIntervention = true;
 export const enableEagerRootListeners = true;
 export const disableSchedulerTimeoutInWorkLoop = false;
 

packages/shared/forks/ReactFeatureFlags.test-renderer.js

@@ -48,7 +48,6 @@ export const enableNewReconciler = false;
 export const deferRenderPhaseUpdateToNextBatch = true;
 export const decoupleUpdatePriorityFromScheduler = false;
 export const enableDiscreteEventFlushingChange = false;
-export const enablePassiveEventIntervention = true;
 export const enableEagerRootListeners = true;
 export const disableSchedulerTimeoutInWorkLoop = false;
 

packages/shared/forks/ReactFeatureFlags.test-renderer.native.js

@@ -48,7 +48,6 @@ export const enableNewReconciler = false;
 export const deferRenderPhaseUpdateToNextBatch = true;
 export const decoupleUpdatePriorityFromScheduler = false;
 export const enableDiscreteEventFlushingChange = false;
-export const enablePassiveEventIntervention = true;
 export const enableEagerRootListeners = true;
 export const disableSchedulerTimeoutInWorkLoop = false;
 

packages/shared/forks/ReactFeatureFlags.test-renderer.www.js

@@ -48,7 +48,6 @@ export const enableNewReconciler = false;
 export const deferRenderPhaseUpdateToNextBatch = true;
 export const decoupleUpdatePriorityFromScheduler = false;
 export const enableDiscreteEventFlushingChange = false;
-export const enablePassiveEventIntervention = true;
 export const enableEagerRootListeners = true;
 export const disableSchedulerTimeoutInWorkLoop = false;
 

packages/shared/forks/ReactFeatureFlags.testing.js

@@ -48,7 +48,6 @@ export const enableNewReconciler = false;
 export const deferRenderPhaseUpdateToNextBatch = true;
 export const decoupleUpdatePriorityFromScheduler = false;
 export const enableDiscreteEventFlushingChange = false;
-export const enablePassiveEventIntervention = true;
 export const enableEagerRootListeners = true;
 export const disableSchedulerTimeoutInWorkLoop = false;