feat(core events): Standard JavaScript event factories - add "scroll" event.

Author: thet

src/core/events.js

@@ -72,6 +72,13 @@ const input_event = () => {
     });
 };
 
+const scroll_event = () => {
+    return new Event("scroll", {
+        bubbles: true,
+        cancelable: false,
+    });
+};
+
 const submit_event = () => {
     return new Event("submit", {
         bubbles: true,
@@ -84,5 +91,6 @@ export default {
     remove_event_listener: remove_event_listener,
     change_event: change_event,
     input_event: input_event,
+    scroll_event: scroll_event,
     submit_event: submit_event,
 };

src/core/events.test.js

@@ -84,6 +84,15 @@ describe("core.events tests", () => {
             expect(catched).toBe("outer");
         });
 
+        it("scroll event", async () => {
+            outer.addEventListener("scroll", () => {
+                catched = "outer";
+            });
+            inner.dispatchEvent(events.scroll_event());
+            await utils.timeout(1);
+            expect(catched).toBe("outer");
+        });
+
         it("submit event", async () => {
             outer.addEventListener("submit", () => {
                 catched = "outer";