feat: ai elements (#1143)

components/elements/prompt-input.tsx

@@ -0,0 +1,235 @@
+'use client';
+
+import { Button } from '@/components/ui/button';
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from '@/components/ui/select';
+import { Textarea } from '@/components/ui/textarea';
+import { cn } from '@/lib/utils';
+import type { ChatStatus } from 'ai';
+import { Loader2Icon, SendIcon, SquareIcon, XIcon } from 'lucide-react';
+import type {
+  ComponentProps,
+  HTMLAttributes,
+  KeyboardEventHandler,
+} from 'react';
+import { Children } from 'react';
+
+export type PromptInputProps = HTMLAttributes<HTMLFormElement>;
+
+export const PromptInput = ({ className, ...props }: PromptInputProps) => (
+  <form
+    className={cn(
+      'w-full overflow-hidden rounded-xl border bg-background shadow-sm',
+      className,
+    )}
+    {...props}
+  />
+);
+
+export type PromptInputTextareaProps = ComponentProps<typeof Textarea> & {
+  minHeight?: number;
+  maxHeight?: number;
+  disableAutoResize?: boolean;
+  resizeOnNewLinesOnly?: boolean;
+};
+
+export const PromptInputTextarea = ({
+  onChange,
+  className,
+  placeholder = 'What would you like to know?',
+  minHeight = 48,
+  maxHeight = 164,
+  disableAutoResize = false,
+  resizeOnNewLinesOnly = false,
+  ...props
+}: PromptInputTextareaProps) => {
+  const handleKeyDown: KeyboardEventHandler<HTMLTextAreaElement> = (e) => {
+    if (e.key === 'Enter') {
+      // Don't submit if IME composition is in progress
+      if (e.nativeEvent.isComposing) {
+        return;
+      }
+
+      if (e.shiftKey) {
+        // Allow newline
+        return;
+      }
+
+      // Submit on Enter (without Shift)
+      e.preventDefault();
+      const form = e.currentTarget.form;
+      if (form) {
+        form.requestSubmit();
+      }
+    }
+  };
+
+  return (
+    <Textarea
+      className={cn(
+        'w-full resize-none rounded-none border-none p-3 shadow-none outline-none ring-0',
+        disableAutoResize ? 'field-sizing-fixed' : resizeOnNewLinesOnly ? 'field-sizing-fixed' : 'field-sizing-content max-h-[6lh]',
+        'bg-transparent dark:bg-transparent',
+        'focus-visible:ring-0',
+        className,
+      )}
+      name="message"
+      onChange={(e) => {
+        onChange?.(e);
+      }}
+      onKeyDown={handleKeyDown}
+      placeholder={placeholder}
+      {...props}
+    />
+  );
+};
+
+export type PromptInputToolbarProps = HTMLAttributes<HTMLDivElement>;
+
+export const PromptInputToolbar = ({
+  className,
+  ...props
+}: PromptInputToolbarProps) => (
+  <div
+    className={cn('flex items-center justify-between p-1', className)}
+    {...props}
+  />
+);
+
+export type PromptInputToolsProps = HTMLAttributes<HTMLDivElement>;
+
+export const PromptInputTools = ({
+  className,
+  ...props
+}: PromptInputToolsProps) => (
+  <div
+    className={cn(
+      'flex items-center gap-1',
+      '[&_button:first-child]:rounded-bl-xl',
+      className,
+    )}
+    {...props}
+  />
+);
+
+export type PromptInputButtonProps = ComponentProps<typeof Button>;
+
+export const PromptInputButton = ({
+  variant = 'ghost',
+  className,
+  size,
+  ...props
+}: PromptInputButtonProps) => {
+  const newSize =
+    (size ?? Children.count(props.children) > 1) ? 'default' : 'icon';
+
+  return (
+    <Button
+      className={cn(
+        'shrink-0 gap-1.5 rounded-lg',
+        variant === 'ghost' && 'text-muted-foreground',
+        newSize === 'default' && 'px-3',
+        className,
+      )}
+      size={newSize}
+      type="button"
+      variant={variant}
+      {...props}
+    />
+  );
+};
+
+export type PromptInputSubmitProps = ComponentProps<typeof Button> & {
+  status?: ChatStatus;
+};
+
+export const PromptInputSubmit = ({
+  className,
+  variant = 'default',
+  size = 'icon',
+  status,
+  children,
+  ...props
+}: PromptInputSubmitProps) => {
+  let Icon = <SendIcon className="size-4" />;
+
+  if (status === 'submitted') {
+    Icon = <Loader2Icon className="size-4 animate-spin" />;
+  } else if (status === 'streaming') {
+    Icon = <SquareIcon className="size-4" />;
+  } else if (status === 'error') {
+    Icon = <XIcon className="size-4" />;
+  }
+
+  return (
+    <Button
+      className={cn('gap-1.5 rounded-lg', className)}
+      size={size}
+      type="submit"
+      variant={variant}
+      {...props}
+    >
+      {children ?? Icon}
+    </Button>
+  );
+};
+
+export type PromptInputModelSelectProps = ComponentProps<typeof Select>;
+
+export const PromptInputModelSelect = (props: PromptInputModelSelectProps) => (
+  <Select {...props} />
+);
+
+export type PromptInputModelSelectTriggerProps = ComponentProps<
+  typeof SelectTrigger
+>;
+
+export const PromptInputModelSelectTrigger = ({
+  className,
+  ...props
+}: PromptInputModelSelectTriggerProps) => (
+  <SelectTrigger
+    className={cn(
+      'border-none bg-transparent font-medium text-muted-foreground shadow-none transition-colors',
+      'hover:bg-accent hover:text-foreground [&[aria-expanded="true"]]:bg-accent [&[aria-expanded="true"]]:text-foreground',
+      className,
+    )}
+    {...props}
+  />
+);
+
+export type PromptInputModelSelectContentProps = ComponentProps<
+  typeof SelectContent
+>;
+
+export const PromptInputModelSelectContent = ({
+  className,
+  ...props
+}: PromptInputModelSelectContentProps) => (
+  <SelectContent className={cn(className)} {...props} />
+);
+
+export type PromptInputModelSelectItemProps = ComponentProps<typeof SelectItem>;
+
+export const PromptInputModelSelectItem = ({
+  className,
+  ...props
+}: PromptInputModelSelectItemProps) => (
+  <SelectItem className={cn(className)} {...props} />
+);
+
+export type PromptInputModelSelectValueProps = ComponentProps<
+  typeof SelectValue
+>;
+
+export const PromptInputModelSelectValue = ({
+  className,
+  ...props
+}: PromptInputModelSelectValueProps) => (
+  <SelectValue className={cn(className)} {...props} />
+);