refactor: use storybook and atomic design (#16)

BREAKING CHANGE: rewrite most of the Typescript types, so the content format (the meta in particular) needs to be updated.

1 files changed, 46 insertions, 0 deletions

diff --git a/src/utils/hooks/use-click-outside.tsx b/src/utils/hooks/use-click-outside.tsx
new file mode 100644
index 0000000..cead98b
--- /dev/null
+++ b/src/utils/hooks/use-click-outside.tsx
@@ -0,0 +1,46 @@
+import { RefObject, useCallback, useEffect } from 'react';
+
+/**
+ * Listen for click/focus outside an element and execute the given callback.
+ *
+ * @param el - A React reference to an element.
+ * @param callback - A callback function to execute on click outside.
+ */
+const useClickOutside = (
+  el: RefObject<HTMLElement>,
+  callback: (target: EventTarget) => void
+) => {
+  /**
+   * Check if an event target is outside an element.
+   *
+   * @param {RefObject<HTMLElement>} ref - A React reference object.
+   * @param {EventTarget} target - An event target.
+   * @returns {boolean} True if the event target is outside the ref object.
+   */
+  const isTargetOutside = (
+    ref: RefObject<HTMLElement>,
+    target: EventTarget
+  ): boolean => {
+    if (!ref.current) return false;
+    return !ref.current.contains(target as Node);
+  };
+
+  const handleEvent = useCallback(
+    (e: MouseEvent | FocusEvent) => {
+      if (e.target && isTargetOutside(el, e.target)) callback(e.target);
+    },
+    [el, callback]
+  );
+
+  useEffect(() => {
+    document.addEventListener('mousedown', handleEvent);
+    document.addEventListener('focusin', handleEvent);
+
+    return () => {
+      document.removeEventListener('mousedown', handleEvent);
+      document.removeEventListener('focusin', handleEvent);
+    };
+  }, [handleEvent]);
+};
+
+export default useClickOutside;