[body-scroll-lock-upgrade] Add definition (#4529)

definitions/npm/body-scroll-lock-upgrade_v1.x.x/flow_v0.83.x-/body-scroll-lock-upgrade_v1.x.x.js

@@ -0,0 +1,14 @@
+declare module 'body-scroll-lock' {
+  declare type BodyScrollOptions = {|
+    reserveScrollBarGap?: boolean,
+    allowTouchMove?: (el: any) => boolean,
+  |}
+
+  declare type BodyScrollLock = {|
+    disableBodyScroll: (target: HTMLElement, options?: BodyScrollOptions) => void,
+    enableBodyScroll: (target: HTMLElement) => void,
+    clearAllBodyScrollLocks: () => void,
+  |};
+
+  declare module.exports: BodyScrollLock;
+}

definitions/npm/body-scroll-lock-upgrade_v1.x.x/flow_v0.83.x-/test_body-scroll-lock-upgrade_v1.x.x.js

@@ -0,0 +1,51 @@
+// @flow
+import { describe, it } from 'flow-typed-test';
+import {
+  disableBodyScroll,
+  enableBodyScroll,
+  clearAllBodyScrollLocks,
+} from 'body-scroll-lock';
+
+declare var element: HTMLElement;
+declare var inputElement: HTMLInputElement;
+
+describe('body-scroll-lock', () => {
+  it('disableBodyScroll', () => {
+    (disableBodyScroll(element): void);
+    disableBodyScroll(inputElement);
+    // $FlowExpectedError[incompatible-call]
+    disableBodyScroll();
+  });
+
+  it('disableBodyScroll with options', () => {
+    disableBodyScroll(element, {
+      reserveScrollBarGap: true,
+      allowTouchMove: (el) => true,
+    });
+    disableBodyScroll(element, {
+      reserveScrollBarGap: true,
+    });
+    disableBodyScroll(element, {
+      allowTouchMove: (el) => true,
+    });
+    // $FlowExpectedError[prop-missing]
+    disableBodyScroll(element, {
+      random: true,
+    });
+  });
+
+  it('enableBodyScroll', () => {
+    (enableBodyScroll(element): void);
+    enableBodyScroll(inputElement);
+    // $FlowExpectedError[incompatible-call]
+    enableBodyScroll();
+    // $FlowExpectedError[extra-arg]
+    enableBodyScroll(element, {});
+  });
+
+  it('clearAllBodyScrollLocks', () => {
+    (clearAllBodyScrollLocks(): void);
+    // $FlowExpectedError[extra-arg]
+    clearAllBodyScrollLocks('');
+  });
+});