# All files / form FileInput.tsx

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93.33% Branches 14/15
100% Functions 3/3
100% Lines 218/218

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     "use client";
    import { cnb } from "cnbuilder";
    import {
      forwardRef,
      type InputHTMLAttributes,
      type LabelHTMLAttributes,
      type ReactNode,
    } from "react";
    import {
      button,
      type ButtonClassNameOptions,
      type ButtonClassNameThemeOptions,
    } from "../button/buttonStyles.js";
    import { getIcon } from "../icon/iconConfig.js";
    import { useElementInteraction } from "../interaction/useElementInteraction.js";
    import { type PropsWithRef } from "../types.js";
    import { SrOnly } from "../typography/SrOnly.js";
    import { useEnsuredId } from "../useEnsuredId.js";

    /** @remarks \@since 6.0.0 */
    export type FileInputClassNameOptions = ButtonClassNameOptions;

    /** @remarks \@since 6.0.0 */
    export function fileInput(options: FileInputClassNameOptions = {}): string {
      return cnb("rmd-file-input", button(options));
    }

    /** @remarks \@since 6.0.0 */
    export type FileInputHTMLAttributes = Omit<
      InputHTMLAttributes<HTMLInputElement>,
      "type"
    >;

    /**
     * @remarks \@since 6.0.0 Removed the `disableIconSpacing` prop since it is no
     * longer required.
     */
    export interface FileInputProps
      extends ButtonClassNameThemeOptions,
        FileInputHTMLAttributes {
      /**
       * This is the label text for icon-only file inputs.
       *
       * @defaultValue `"Upload"`
       */
      srOnlyLabel?: ReactNode;

      /**
       * Any additional props to provide to the container `<label>` element since
       * most props get passed to the `<input type="file">`. So this would be useful
       * for inline style or click handlers.
       */
      labelProps?: PropsWithRef<
        LabelHTMLAttributes<HTMLLabelElement>,
        HTMLLabelElement
      >;

      /**
       * An optional icon to display for the file input.
       *
       * @defaultValue `getIcon("upload")`
       */
      icon?: ReactNode;

      /**
       * Boolean if the icon should appear after the children in the label.
       *
       * @defaultValue `false`
       */
      iconAfter?: boolean;

      /**
       * Boolean if the file input should no longer allow the same file to be
       * selected multiple times and trigger the `onChange` each time it is
       * selected.
       *
       * @defaultValue `false`
       */
      disableRepeatableFiles?: boolean;

      /**
       * Children should generally be provided when the {@link buttonType} is
       * set to `"text"`. This defaults to a screen-reader only accessible text.
       *
       * @defaultValue `<SrOnly phoneOnly={responsive}>Upload</SrOnly>`
       */
      children?: ReactNode;
    }

    /**
     * **Client Component**
     * This might be able to become a server component if I remove the getIcon hook
     *
     * @example
     * Simple Example
     * ```tsx
     * import { FileInput, Form } from "@react-md/core";
     * import type { ReactElement } from "react";
     *
     * const extensions = [
     *   "svg",
     *   "jpeg",
     *   "jpg",
     *   "png",
     *   "apng",
     *   "mkv",
     *   "mp4",
     *   "mpeg",
     *   "mpg",
     *   "webm",
     *   "mov",
     * ] as const;
     *
     * const FOUR_HUNDRED_MB = 400 * 1024 * 1024;
     * const maxFiles = 10;
     *
     * function Example(): ReactElement {
     *   const { stats, errors, onChange, clearErrors, reset, remove, accept } =
     *     useFileUpload({
     *       maxFiles,
     *       maxFileSize: FOUR_HUNDRED_MB,
     *       extensions,
     *     });
     *
     *   return (
     *     <Form>
     *       <FileInput accept={accept} multiple={maxFiles > 1} onChange={onChange} />
     *       <Button onClick={reset} disabled={!stats.length}>
     *         Remove all files
     *       </Button>
     *     </Form>
     *   );
     * }
     * ```
     *
     * @remarks \@since 6.0.0 Added additional support for `iconSize` and
     * `responsive`. Also removed the `disableIconSpacing` prop since it is no
     * longer required.
     */
    export const FileInput = forwardRef<HTMLInputElement, FileInputProps>(
      function FileInput(props, ref) {
        const {
          id: propId,
          className,
          children: propChildren,
          icon: propIcon,
          iconAfter = false,
          srOnlyLabel = "Upload",
          disableRepeatableFiles = false,
          labelProps,
          theme = "primary",
          themeType = "contained",
          buttonType = propChildren ? "text" : "icon",
          disabled = false,
          iconSize,
          responsive,
          multiple = false,
          ...remaining
        } = props;
        const id = useEnsuredId(propId, "file-input");
        const { pressed, pressedClassName, ripples, handlers } =
          useElementInteraction({
            ...labelProps,
            onClick(event) {
              labelProps?.onClick?.(event);

              // stop propagation so 2 ripples are not created
              event.stopPropagation();
            },
            disabled,
          });

        const icon = getIcon("upload", propIcon);
        let children = propChildren;
        if (
          typeof propChildren === "undefined" &&
          !props["aria-label"] &&
          !props["aria-labelledby"]
        ) {
          children = <SrOnly phoneOnly={responsive}>{srOnlyLabel}</SrOnly>;
        }

        return (
          <label
            {...labelProps}
            {...handlers}
            className={fileInput({
              theme,
              themeType,
              buttonType,
              disabled,
              iconSize,
              pressed,
              responsive,
              pressedClassName,
              className: className || labelProps?.className,
            })}
          >
            {!iconAfter && icon}
            {children}
            {iconAfter && icon}
            <input
              {...remaining}
              id={id}
              ref={ref}
              value={
                disableRepeatableFiles || !props.onChange ? remaining.value : ""
              }
              type="file"
              className="rmd-hidden-input"
              disabled={disabled}
              multiple={multiple}
            />
            {ripples}
          </label>
        );
      }
    );