dify

dify/web/app/components/datasets/preview/container.tsx

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+import type { ComponentProps, FC, ReactNode } from 'react'
+import classNames from '@/utils/classnames'
+
+export type PreviewContainerProps = ComponentProps<'div'> & {
+  header: ReactNode
+  mainClassName?: string
+  ref?: React.Ref<HTMLDivElement>
+}
+
+const PreviewContainer: FC<PreviewContainerProps> = (props) => {
+  const { children, className, header, mainClassName, ref, ...rest } = props
+  return <div className={className}>
+    <div
+      {...rest}
+      ref={ref}
+      className={classNames(
+        'flex h-full w-full flex-col rounded-tl-xl border-l-[0.5px] border-t-[0.5px] border-components-panel-border bg-background-default-lighter shadow-md shadow-shadow-shadow-5',
+      )}
+    >
+      <header className='border-b border-divider-subtle pb-3 pl-5 pr-4 pt-4'>
+        {header}
+      </header>
+      <main className={classNames('w-full grow overflow-y-auto px-6 py-5', mainClassName)}>
+        {children}
+      </main>
+    </div>
+  </div>
+}
+PreviewContainer.displayName = 'PreviewContainer'
+
+export default PreviewContainer

dify/web/app/components/datasets/preview/header.tsx

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+import type { ComponentProps, FC } from 'react'
+import classNames from '@/utils/classnames'
+
+export type PreviewHeaderProps = Omit<ComponentProps<'div'>, 'title'> & {
+  title: string
+}
+
+export const PreviewHeader: FC<PreviewHeaderProps> = (props) => {
+  const { title, className, children, ...rest } = props
+  return <div
+    {...rest}
+    className={classNames(
+      className,
+    )}
+  >
+    <div
+      className='system-2xs-semibold-uppercase mb-1 px-1 uppercase text-text-accent'
+    >
+      {title}
+    </div>
+    {children}
+  </div>
+}

dify/web/app/components/datasets/preview/index.tsx

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+const DatasetPreview = () => null
+
+export default DatasetPreview