feat: create useViewportSize hook

src/hooks/UseViewportSize/UseViewportSize.tsx

@@ -0,0 +1,38 @@
+import React from 'react';
+
+export interface ViewportSize {
+    width?: number;
+    height?: number;
+}
+
+const getViewportSize = (): ViewportSize => ({
+    width: window?.visualViewport?.width ?? window?.innerWidth ?? undefined,
+    height: window?.visualViewport?.height ?? window?.innerHeight ?? undefined,
+});
+
+/**
+ * A hook to get the size of the viewport when resizing
+ *
+ * @return - {width, height}
+ */
+export const useViewportSize = (): ViewportSize => {
+    const [size, setSize] = React.useState<ViewportSize>(getViewportSize());
+
+    React.useEffect(() => {
+        const onResize = () => {
+            let newSize = getViewportSize();
+            if (newSize.width === size?.width && newSize.height === size?.height) {
+                newSize = size;
+            }
+            setSize(newSize);
+        };
+
+        (window.visualViewport ?? window).addEventListener('resize', onResize);
+
+        return () => {
+            (window.visualViewport ?? window).removeEventListener('resize', onResize);
+        };
+    }, [size]);
+
+    return size;
+};

src/hooks/UseViewportSize/__tests__/UseViewportSize.test.tsx

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+import {act, fireEvent, renderHook} from '@testing-library/react';
+
+import {useViewportSize} from '..';
+
+test('Check useViewportSize correct work', () => {
+    const view = renderHook(() => useViewportSize());
+
+    act(() => {
+        window.innerHeight = 500;
+        window.innerWidth = 500;
+    });
+
+    fireEvent(window, new Event('resize'));
+
+    expect(view.result.current).toEqual({height: 500, width: 500});
+
+    act(() => {
+        window.innerHeight = 1200;
+        window.innerWidth = 1200;
+    });
+
+    fireEvent(window, new Event('resize'));
+
+    expect(view.result.current).toEqual({height: 1200, width: 1200});
+});

src/hooks/UseViewportSize/index.ts

@@ -0,0 +1,2 @@
+export {useViewportSize} from './UseViewportSize';
+export type {ViewportSize} from './UseViewportSize';

src/hooks/index.ts

@@ -0,0 +1 @@
+export * from './UseViewportSize';

src/index.ts

@@ -1 +1,2 @@
 export * from './components';
+export * from './hooks';