fix(core): Do not bubble capture events. (#57476)

iteriani · alxhub · commit 6d3a2af146a8 · 2024-08-23T14:46:55.000-07:00
These should only fire if the target is the same as the targetElement. Also, delete an out of date test since capture/non-capture tests are separately covered. PR Close #57476
diff --git a/packages/core/primitives/event-dispatch/src/event_dispatcher.ts b/packages/core/primitives/event-dispatch/src/event_dispatcher.ts
@@ -9,6 +9,7 @@
 import {ActionResolver} from './action_resolver';
 import {Dispatcher} from './dispatcher';
 import {EventInfo, EventInfoWrapper} from './event_info';
+import {isCaptureEventType} from './event_type';
 import {UnrenamedEventContract} from './eventcontract';
 import {Restriction} from './restriction';
 
@@ -81,6 +82,13 @@ export class EventDispatcher {
     prepareEventForBubbling(eventInfoWrapper);
     while (eventInfoWrapper.getAction()) {
       prepareEventForDispatch(eventInfoWrapper);
+      // If this is a capture event, ONLY dispatch if the action element is the target.
+      if (
+        isCaptureEventType(eventInfoWrapper.getEventType()) &&
+        eventInfoWrapper.getAction()!.element !== eventInfoWrapper.getTargetElement()
+      ) {
+        return;
+      }
       this.dispatchDelegate(eventInfoWrapper.getEvent(), eventInfoWrapper.getAction()!.name);
       if (propagationStopped(eventInfoWrapper)) {
         return;
diff --git a/packages/core/test/event_dispatch/event_dispatch_spec.ts b/packages/core/test/event_dispatch/event_dispatch_spec.ts
@@ -109,38 +109,6 @@ describe('event dispatch', () => {
     inner.click();
     expect(outerOnClickSpy).toHaveBeenCalledBefore(innerOnClickSpy);
   });
-  it('should serialize event types to be listened to and jsaction cache entry', async () => {
-    const clickSpy = jasmine.createSpy('onClick');
-    const focusSpy = jasmine.createSpy('onFocus');
-    @Component({
-      standalone: true,
-      selector: 'app',
-      template: `
-            <div (click)="onClick()" id="click-element">
-              <div id="focus-container">
-                <div id="focus-action-element" (focus)="onFocus()">
-                  <button id="focus-target-element">Focus Button</button>
-                </div>
-              </div>
-            </div>
-          `,
-    })
-    class SimpleComponent {
-      onClick = clickSpy;
-      onFocus = focusSpy;
-    }
-    configureTestingModule([SimpleComponent]);
-    fixture = TestBed.createComponent(SimpleComponent);
-    const nativeElement = fixture.debugElement.nativeElement;
-    const el = nativeElement.querySelector('#click-element')!;
-    const button = nativeElement.querySelector('#focus-target-element')!;
-    const clickEvent = new CustomEvent('click', {bubbles: true});
-    el.dispatchEvent(clickEvent);
-    const focusEvent = new CustomEvent('focus');
-    button.dispatchEvent(focusEvent);
-    expect(clickSpy).toHaveBeenCalled();
-    expect(focusSpy).toHaveBeenCalled();
-  });
 
   describe('bubbling behavior', () => {
     it('should propagate events', async () => {
@@ -305,3 +273,31 @@ describe('event dispatch', () => {
     });
   });
 });
+
+describe('capture behavior', () => {
+  let fixture: ComponentFixture<unknown>;
+  it('should not bubble', async () => {
+    const onFocusSpy = jasmine.createSpy();
+    @Component({
+      standalone: true,
+      selector: 'app',
+      template: `
+          <div id="top" (focus)="onFocus()">
+              <div id="bottom"></div>
+          </div>
+        `,
+    })
+    class SimpleComponent {
+      onFocus = onFocusSpy;
+    }
+    configureTestingModule([SimpleComponent]);
+    fixture = TestBed.createComponent(SimpleComponent);
+    const nativeElement = fixture.debugElement.nativeElement;
+    const bottomEl = nativeElement.querySelector('#bottom')!;
+    const topEl = nativeElement.querySelector('#top')!;
+    bottomEl.dispatchEvent(new FocusEvent('focus'));
+    expect(onFocusSpy).toHaveBeenCalledTimes(0);
+    topEl.dispatchEvent(new FocusEvent('focus'));
+    expect(onFocusSpy).toHaveBeenCalledTimes(1);
+  });
+});
diff --git a/packages/platform-server/test/event_replay_spec.ts b/packages/platform-server/test/event_replay_spec.ts
@@ -208,46 +208,6 @@ describe('event replay', () => {
     expect(outerOnClickSpy).toHaveBeenCalledBefore(innerOnClickSpy);
   });
 
-  it('should serialize event types to be listened to and jsaction attribute', async () => {
-    const clickSpy = jasmine.createSpy('onClick');
-    const focusSpy = jasmine.createSpy('onFocus');
-    @Component({
-      standalone: true,
-      selector: 'app',
-      template: `
-            <div (click)="onClick()" id="click-element">
-              <div id="focus-container">
-                <div id="focus-action-element" (focus)="onFocus()">
-                  <button id="focus-target-element">Focus Button</button>
-                </div>
-              </div>
-            </div>
-          `,
-    })
-    class SimpleComponent {
-      onClick = clickSpy;
-      onFocus = focusSpy;
-    }
-    const html = await ssr(SimpleComponent);
-    const ssrContents = getAppContents(html);
-
-    render(doc, ssrContents);
-    const el = doc.getElementById('click-element')!;
-    const button = doc.getElementById('focus-target-element')!;
-    const clickEvent = new CustomEvent('click', {bubbles: true});
-    el.dispatchEvent(clickEvent);
-    const focusEvent = new CustomEvent('focus');
-    button.dispatchEvent(focusEvent);
-    expect(clickSpy).not.toHaveBeenCalled();
-    expect(focusSpy).not.toHaveBeenCalled();
-    resetTViewsFor(SimpleComponent);
-    await hydrate(doc, SimpleComponent, {
-      hydrationFeatures: [withEventReplay()],
-    });
-    expect(clickSpy).toHaveBeenCalled();
-    expect(focusSpy).toHaveBeenCalled();
-  });
-
   it('should remove jsaction attributes, but continue listening to events.', async () => {
     @Component({
       standalone: true,
