14754643663

Committed 30 Apr 2025 12:32PM UTC coverage: 90.283% (-0.08%) from 90.36%

Build # 14754643663

Build Type

Pull #631

github

Committed by

web-flow

Commit Message

Merge 3a48e7562 into 40eaa8d14

Pull Request Pull Request #631: Allow to reset `FileInputField` internal state by calling `resetState` function on its ref (#630)

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69.49

/src/components/FileInputField/FileInputField.jsx

import PropTypes from 'prop-types';
import React, {
  useCallback,
  useEffect,
  useContext,
  useImperativeHandle,
  useRef,
  useState,
} from 'react';
import { withGlobalProps } from '../../providers/globalProps';
import { classNames } from '../../helpers/classNames';
import { transferProps } from '../../helpers/transferProps';
import { TranslationsContext } from '../../providers/translations';
import { getRootSizeClassName } from '../_helpers/getRootSizeClassName';
import { getRootValidationStateClassName } from '../_helpers/getRootValidationStateClassName';
import { resolveContextOrProp } from '../_helpers/resolveContextOrProp';
import { InputGroupContext } from '../InputGroup';
import { Text } from '../Text';
import { FormLayoutContext } from '../FormLayout';
import styles from './FileInputField.module.scss';

export const FileInputField = React.forwardRef((props, ref) => {
  const {
    disabled,
    fullWidth,
    helpText,
    id,
    isLabelVisible,
    label,
    layout,
    multiple,
    onFilesChanged,
    required,
    size,
    validationState,
    validationText,
    ...restProps
  } = props;

  const formLayoutContext = useContext(FormLayoutContext);
  const inputGroupContext = useContext(InputGroupContext);
  const translations = useContext(TranslationsContext);

  const [selectedFileNames, setSelectedFileNames] = useState([]);
  const [isDragging, setIsDragging] = useState(false);

  const internalInputRef = useRef();

  // We need to have a reference to the input element to be able to call its methods,
  // but at the same time we want to expose this reference to the parent component for
  // case someone wants to call input methods from outside the component.
  useImperativeHandle(
    ref,
    () => {
      const inputEl = internalInputRef?.current ?? {};
      inputEl.resetState = () => {
        setSelectedFileNames([]);
      };
      return inputEl;
    },
    [setSelectedFileNames],
  );

  const handleFileChange = (files, event) => {
    if (files.length === 0) {
      setSelectedFileNames([]);
      return;
    }

    // Mimic the native behavior of the `input` element: if multiple files are selected and the input
    // does not accept multiple files, no files are processed.
    if (files.length > 1 && !multiple) {
      setSelectedFileNames([]);
      return;
    }

    const fileNames = [];

    [...files].forEach((file) => {
      fileNames.push(file.name);
    });

    setSelectedFileNames(fileNames);
    onFilesChanged(files, event);
  };

  const handleInputChange = (event) => {
    handleFileChange(event.target.files, event);
  };

  const handleClick = () => {
    internalInputRef?.current.click();
  };

  const handleDrop = (event) => {
    event.preventDefault();
    handleFileChange(event.dataTransfer.files, event);
    setIsDragging(false);
  };

  const handleDragOver = (event) => {
    if (!isDragging) {
      setIsDragging(true);
    }
    event.preventDefault();
  };

  const handleDragLeave = () => {
    if (isDragging) {
      setIsDragging(false);
    }
  };

  const handleReset = useCallback((event) => {
    setSelectedFileNames([]);
    onFilesChanged([], event);
  }, [onFilesChanged]);

  useEffect(() => {
    const inputEl = internalInputRef.current;
    if (!inputEl) {
      return () => {};
    }

    const { form } = inputEl;
    if (!form) {
      return () => {};
    }

    form.addEventListener('reset', handleReset);

    return () => {
      form.removeEventListener('reset', handleReset);
    };
  }, [handleReset]);

  return (
    <div
      className={classNames(
        styles.root,
        fullWidth && styles.isRootFullWidth,
        formLayoutContext && styles.isRootInFormLayout,
        resolveContextOrProp(formLayoutContext && formLayoutContext.layout, layout) === 'horizontal'
          ? styles.isRootLayoutHorizontal
          : styles.isRootLayoutVertical,
        resolveContextOrProp(inputGroupContext && inputGroupContext.disabled, disabled) && styles.isRootDisabled,
        inputGroupContext && styles.isRootGrouped,
        isDragging && styles.isRootDragging,
        required && styles.isRootRequired,
        getRootSizeClassName(
          resolveContextOrProp(inputGroupContext && inputGroupContext.size, size),
          styles,
        ),
        getRootValidationStateClassName(validationState, styles),
      )}
      id={`${id}__root`}
      onDragLeave={!disabled ? handleDragLeave : undefined}
      onDragOver={!disabled ? handleDragOver : undefined}
      onDrop={!disabled ? handleDrop : undefined}
    >
      <label
        className={classNames(
          styles.label,
          (!isLabelVisible || inputGroupContext) && styles.isLabelHidden,
        )}
        htmlFor={id}
        id={`${id}__labelText`}
      >
        {label}
      </label>
      <div className={styles.field}>
        <div className={styles.inputContainer}>
          <input
            {...transferProps(restProps)}
            className={styles.input}
            disabled={resolveContextOrProp(inputGroupContext && inputGroupContext.disabled, disabled)}
            id={id}
            multiple={multiple}
            onChange={handleInputChange}
            ref={internalInputRef}
            required={required}
            tabIndex={-1}
            type="file"
          />
          <button
            className={styles.dropZone}
            disabled={resolveContextOrProp(inputGroupContext && inputGroupContext.disabled, disabled)}
            onClick={handleClick}
            type="button"
          >
            <Text lines={1}>
              {!selectedFileNames.length && (
                <>
                  <span className={styles.dropZoneLink}>{translations.FileInputField.browse}</span>
                  {' '}
                  {translations.FileInputField.drop}
                </>
              )}
              {selectedFileNames.length === 1 && selectedFileNames[0]}
              {selectedFileNames.length > 1 && (
                <>
                  {selectedFileNames.length}
                  {' '}
                  {translations.FileInputField.filesSelected}
                </>
              )}
            </Text>
          </button>
        </div>
        {helpText && (
          <div
            className={styles.helpText}
            id={`${id}__helpText`}
          >
            {helpText}
          </div>
        )}
        {validationText && (
          <div
            className={styles.validationText}
            id={`${id}__validationText`}
          >
            {validationText}
          </div>
        )}
      </div>
    </div>
  );
});

FileInputField.defaultProps = {
  disabled: false,
  fullWidth: false,
  helpText: null,
  isLabelVisible: true,
  layout: 'vertical',
  multiple: false,
  required: false,
  size: 'medium',
  validationState: null,
  validationText: null,
};

FileInputField.propTypes = {
  /**
   * If `true`, the input will be disabled.
   */
  disabled: PropTypes.bool,
  /**
   * If `true`, the field will span the full width of its parent.
   */
  fullWidth: PropTypes.bool,
  /**
   * Optional help text.
   */
  helpText: PropTypes.node,
  /**
   * ID of the `<input>` HTML element.
   *
   * Also serves as base for ids of nested elements:
   * * `<ID>__label`
   * * `<ID>__labelText`
   * * `<ID>__helpText`
   * * `<ID>__validationText`
   */
  id: PropTypes.string.isRequired,
  /**
   * If `false`, the label will be visually hidden (but remains accessible by assistive
   * technologies).
   */
  isLabelVisible: PropTypes.bool,
  /**
   * File input field label.
   */
  label: PropTypes.node.isRequired,
  /**
   * Layout of the field.
   *
   * Ignored if the component is rendered within `FormLayout` component
   * as the value is inherited in such case.
   *
   */
  layout: PropTypes.oneOf(['horizontal', 'vertical']),
  /**
   * If `true`, the input will accept multiple files.
   */
  multiple: PropTypes.bool,
  /**
   * Callback fired when the value of the input changes.
   */
  onFilesChanged: PropTypes.func.isRequired,
  /**
   * If `true`, the input will be required.
   */
  required: PropTypes.bool,
  /**
   * Size of the field.
   *
   * Ignored if the component is rendered within `InputGroup` component as the value is inherited in such case.
   */
  size: PropTypes.oneOf(['small', 'medium', 'large']),
  /**
   * Alter the field to provide feedback based on validation result.
   */
  validationState: PropTypes.oneOf(['invalid', 'valid', 'warning']),
  /**
   * Validation message to be displayed.
   */
  validationText: PropTypes.node,
};

export const FileInputFieldWithGlobalProps = withGlobalProps(FileInputField, 'FileInputField');

export default FileInputFieldWithGlobalProps;

1	import PropTypes from 'prop-types';
2	import React, {
3	useCallback,
4	useEffect,
5	useContext,
6	useImperativeHandle,
7	useRef,
8	useState,
9	} from 'react';
10	import { withGlobalProps } from '../../providers/globalProps';
11	import { classNames } from '../../helpers/classNames';
12	import { transferProps } from '../../helpers/transferProps';
13	import { TranslationsContext } from '../../providers/translations';
14	import { getRootSizeClassName } from '../_helpers/getRootSizeClassName';
15	import { getRootValidationStateClassName } from '../_helpers/getRootValidationStateClassName';
16	import { resolveContextOrProp } from '../_helpers/resolveContextOrProp';
17	import { InputGroupContext } from '../InputGroup';
18	import { Text } from '../Text';
19	import { FormLayoutContext } from '../FormLayout';
20	import styles from './FileInputField.module.scss';
21
22	export const FileInputField = React.forwardRef((props, ref) => {	4✔
23	const {
24	disabled,
25	fullWidth,
26	helpText,
27	id,
28	isLabelVisible,
29	label,
30	layout,
31	multiple,
32	onFilesChanged,
33	required,
34	size,
35	validationState,
36	validationText,
37	...restProps
38	} = props;	52✔
39
40	const formLayoutContext = useContext(FormLayoutContext);	52✔
41	const inputGroupContext = useContext(InputGroupContext);	52✔
42	const translations = useContext(TranslationsContext);	52✔
43
44	const [selectedFileNames, setSelectedFileNames] = useState([]);	52✔
45	const [isDragging, setIsDragging] = useState(false);	52✔
46
47	const internalInputRef = useRef();	52✔
48
49	// We need to have a reference to the input element to be able to call its methods,
50	// but at the same time we want to expose this reference to the parent component for
51	// case someone wants to call input methods from outside the component.
52	useImperativeHandle(	52✔
53	ref,
54	() => {
55	const inputEl = internalInputRef?.current ?? {};	2!
56	inputEl.resetState = () => {	2✔
NEW 57	setSelectedFileNames([]);	×
58	};
59	return inputEl;	2✔
60	},
61	[setSelectedFileNames],
62	);
63
64	const handleFileChange = (files, event) => {	52✔
65	if (files.length === 0) {	2!
66	setSelectedFileNames([]);	×
67	return;	×
68	}
69
70	// Mimic the native behavior of the `input` element: if multiple files are selected and the input
71	// does not accept multiple files, no files are processed.
72	if (files.length > 1 && !multiple) {	2!
UNCOV 73	setSelectedFileNames([]);	×
74	return;	×
75	}
76
77	const fileNames = [];	2✔
78
79	[...files].forEach((file) => {	2✔
80	fileNames.push(file.name);	2✔
81	});
82
83	setSelectedFileNames(fileNames);	2✔
84	onFilesChanged(files, event);	2✔
85	};
86
87	const handleInputChange = (event) => {	52✔
88	handleFileChange(event.target.files, event);	2✔
89	};
90
91	const handleClick = () => {	52✔
UNCOV 92	internalInputRef?.current.click();	×
93	};
94
95	const handleDrop = (event) => {	52✔
UNCOV 96	event.preventDefault();	×
UNCOV 97	handleFileChange(event.dataTransfer.files, event);	×
UNCOV 98	setIsDragging(false);	×
99	};
100
101	const handleDragOver = (event) => {	52✔
UNCOV 102	if (!isDragging) {	×
UNCOV 103	setIsDragging(true);	×
104	}
105	event.preventDefault();	×
106	};
107
108	const handleDragLeave = () => {	52✔
UNCOV 109	if (isDragging) {	×
110	setIsDragging(false);	×
111	}
112	};
113
114	const handleReset = useCallback((event) => {	52✔
UNCOV 115	setSelectedFileNames([]);	×
UNCOV 116	onFilesChanged([], event);	×
117	}, [onFilesChanged]);
118
119	useEffect(() => {	52✔
120	const inputEl = internalInputRef.current;	50✔
121	if (!inputEl) {	50✔
UNCOV 122	return () => {};	×
123	}
124
125	const { form } = inputEl;	50✔
126	if (!form) {	50!
127	return () => {};	50✔
128	}
129
UNCOV 130	form.addEventListener('reset', handleReset);	×
131
UNCOV 132	return () => {	×
133	form.removeEventListener('reset', handleReset);	×
134	};
135	}, [handleReset]);
136
137	return (	52✔
138	<div
139	className={classNames(
140	styles.root,
141	fullWidth && styles.isRootFullWidth,	27✔
142	formLayoutContext && styles.isRootInFormLayout,	28✔
143	resolveContextOrProp(formLayoutContext && formLayoutContext.layout, layout) === 'horizontal'	54✔
144	? styles.isRootLayoutHorizontal
145	: styles.isRootLayoutVertical,
146	resolveContextOrProp(inputGroupContext && inputGroupContext.disabled, disabled) && styles.isRootDisabled,	53!
147	inputGroupContext && styles.isRootGrouped,	26!
148	isDragging && styles.isRootDragging,	26!
149	required && styles.isRootRequired,	27✔
150	getRootSizeClassName(
151	resolveContextOrProp(inputGroupContext && inputGroupContext.size, size),	26!
152	styles,
153	),
154	getRootValidationStateClassName(validationState, styles),
155	)}
156	id={`${id}__root`}
157	onDragLeave={!disabled ? handleDragLeave : undefined}	26✔
158	onDragOver={!disabled ? handleDragOver : undefined}	26✔
159	onDrop={!disabled ? handleDrop : undefined}	26✔
160	>
161	<label
162	className={classNames(
163	styles.label,
164	(!isLabelVisible \|\| inputGroupContext) && styles.isLabelHidden,	52✔
165	)}
166	htmlFor={id}
167	id={`${id}__labelText`}
168	>
169	{label}
170	</label>
171	<div className={styles.field}>
172	<div className={styles.inputContainer}>
173	<input
174	{...transferProps(restProps)}
175	className={styles.input}
176	disabled={resolveContextOrProp(inputGroupContext && inputGroupContext.disabled, disabled)}	26!
177	id={id}
178	multiple={multiple}
179	onChange={handleInputChange}
180	ref={internalInputRef}
181	required={required}
182	tabIndex={-1}
183	type="file"
184	/>
185	<button
186	className={styles.dropZone}
187	disabled={resolveContextOrProp(inputGroupContext && inputGroupContext.disabled, disabled)}	26!
188	onClick={handleClick}
189	type="button"
190	>
191	<Text lines={1}>
192	{!selectedFileNames.length && (	51✔
193	<>
194	<span className={styles.dropZoneLink}>{translations.FileInputField.browse}</span>
195	{' '}
196	{translations.FileInputField.drop}
197	</>
198	)}
199	{selectedFileNames.length === 1 && selectedFileNames[0]}	27✔
200	{selectedFileNames.length > 1 && (	26!
201	<>
202	{selectedFileNames.length}
203	{' '}
204	{translations.FileInputField.filesSelected}
205	</>
206	)}
207	</Text>
208	</button>
209	</div>
210	{helpText && (	28✔
211	<div
212	className={styles.helpText}
213	id={`${id}__helpText`}
214	>
215	{helpText}
216	</div>
217	)}
218	{validationText && (	28✔
219	<div
220	className={styles.validationText}
221	id={`${id}__validationText`}
222	>
223	{validationText}
224	</div>
225	)}
226	</div>
227	</div>
228	);
229	});
230
231	FileInputField.defaultProps = {	4✔
232	disabled: false,
233	fullWidth: false,
234	helpText: null,
235	isLabelVisible: true,
236	layout: 'vertical',
237	multiple: false,
238	required: false,
239	size: 'medium',
240	validationState: null,
241	validationText: null,
242	};
243
244	FileInputField.propTypes = {	4✔
245	/**
246	* If `true`, the input will be disabled.
247	*/
248	disabled: PropTypes.bool,
249	/**
250	* If `true`, the field will span the full width of its parent.
251	*/
252	fullWidth: PropTypes.bool,
253	/**
254	* Optional help text.
255	*/
256	helpText: PropTypes.node,
257	/**
258	* ID of the `<input>` HTML element.
259	*
260	* Also serves as base for ids of nested elements:
261	* * `<ID>__label`
262	* * `<ID>__labelText`
263	* * `<ID>__helpText`
264	* * `<ID>__validationText`
265	*/
266	id: PropTypes.string.isRequired,
267	/**
268	* If `false`, the label will be visually hidden (but remains accessible by assistive
269	* technologies).
270	*/
271	isLabelVisible: PropTypes.bool,
272	/**
273	* File input field label.
274	*/
275	label: PropTypes.node.isRequired,
276	/**
277	* Layout of the field.
278	*
279	* Ignored if the component is rendered within `FormLayout` component
280	* as the value is inherited in such case.
281	*
282	*/
283	layout: PropTypes.oneOf(['horizontal', 'vertical']),
284	/**
285	* If `true`, the input will accept multiple files.
286	*/
287	multiple: PropTypes.bool,
288	/**
289	* Callback fired when the value of the input changes.
290	*/
291	onFilesChanged: PropTypes.func.isRequired,
292	/**
293	* If `true`, the input will be required.
294	*/
295	required: PropTypes.bool,
296	/**
297	* Size of the field.
298	*
299	* Ignored if the component is rendered within `InputGroup` component as the value is inherited in such case.
300	*/
301	size: PropTypes.oneOf(['small', 'medium', 'large']),
302	/**
303	* Alter the field to provide feedback based on validation result.
304	*/
305	validationState: PropTypes.oneOf(['invalid', 'valid', 'warning']),
306	/**
307	* Validation message to be displayed.
308	*/
309	validationText: PropTypes.node,
310	};
311
312	export const FileInputFieldWithGlobalProps = withGlobalProps(FileInputField, 'FileInputField');	4✔
313
314	export default FileInputFieldWithGlobalProps;

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