wip: add action bar for selected blocks

New UI component: ButtonGroup.

packages/ui/@/components/ui/button-group.tsx

@@ -0,0 +1,53 @@
+import { Children, ReactElement, cloneElement } from 'react';
+
+import { ButtonProps } from '@/components/ui/button';
+import { cn } from '@/lib/utils';
+
+interface ButtonGroupProps {
+  className?: string;
+  orientation?: 'horizontal' | 'vertical';
+  children: ReactElement<ButtonProps>[];
+}
+
+export const ButtonGroup = ({
+  className,
+  orientation = 'horizontal',
+  children,
+}: ButtonGroupProps) => {
+  const totalButtons = Children.count(children);
+  const isHorizontal = orientation === 'horizontal';
+  const isVertical = orientation === 'vertical';
+
+  return (
+    <div
+      className={cn(
+        'flex',
+        {
+          'flex-col': isVertical,
+          'w-fit': isVertical,
+        },
+        className
+      )}
+    >
+      {Children.map(children, (child, index) => {
+        const isFirst = index === 0;
+        const isLast = index === totalButtons - 1;
+
+        return cloneElement(child, {
+          className: cn(
+            {
+              'rounded-l-none': isHorizontal && !isFirst,
+              'rounded-r-none': isHorizontal && !isLast,
+              'border-l-0': isHorizontal && !isFirst,
+
+              'rounded-t-none': isVertical && !isFirst,
+              'rounded-b-none': isVertical && !isLast,
+              'border-t-0': isVertical && !isFirst,
+            },
+            child.props.className
+          ),
+        });
+      })}
+    </div>
+  );
+};

packages/ui/src/ui.ts

@@ -1,4 +1,5 @@
 import { Button } from '@/components/ui/button'
+import { ButtonGroup } from '@/components/ui/button-group'
 import { Slider, SliderTrack, SliderRange, SliderThumb } from '@/components/ui/slider'
 import {
   DropdownMenu,
@@ -99,7 +100,7 @@ declare global {
 }
 
 const shadui = {
-  Link, Button,
+  Link, Button, ButtonGroup,
   Slider, SliderTrack, SliderRange, SliderThumb,
   DropdownMenu,
   DropdownMenuContent,