Add ability to set disabled element values

Add options for getFormValues, setFormValues, and clearFormValues to allow managing of values for disabled elements.
1 год назад · 0843513772
--- a/README.md
+++ b/README.md
@@ -172,8 +172,4 @@ add values to the form (such as specifying which action to take for the rest of
 [usability table for `SubmitEvent.submitter`](https://caniuse.com/mdn-api_submitevent_submitter) to check if your target
 browser is supported.

 Setting form values of disabled elements is not supported by design, as `formxtra` is made for submittable form
 elements. If a disabled element's value needs to be changed somehow, the form instance is already available, and the
 element to be looked up is accessible via `HTMLFormElement.elements`.

 The sources are under the [MIT license](https://code.modal.sh/TheoryOfNekomata/formxtra/raw/branch/master/LICENSE).
--- a/cypress/integration/core.test.ts
+++ b/cypress/integration/core.test.ts
@@ -336,6 +336,7 @@ describe('misc', () => {
 				<body>
 					<form>
 						<input type="text" name="foobar" />
 						<input type="text" name="disabled" disabled />
 						<button type="submit">Submit</button>
 					</form>
 				</body>
@@ -409,6 +410,23 @@ describe('misc', () => {
 				},
 			})
 		});

 		it('should allow setting values for disabled elements', () => {
 			utils.test({
 				querySubmitter: (cy: any) => cy.get('[type="submit"]'),
 				onSubmitted: (form: HTMLFormElement, submitter: any, search: any) => {
 					let isThrown = false;
 					try {
 						setFormValues(form, { foobar: 'baz', disabled: 'new value' }, { includeDisabled: true });
 					} catch (e) {
 						isThrown = true;
 					}

 					expect(isThrown).toBe(false);
 					expect(getFormValues(form, { includeDisabled: true })).toEqual({ foobar: 'baz', disabled: 'new value', });
 				},
 			})
 		});
 	});


@@ -430,6 +448,7 @@ describe('misc', () => {
 						<input type="radio" name="foo" value="value1" checked />
 						<input type="radio" name="foo" value="value2" />
 						<input type="radio" name="foo" value="value3" />
 						<input type="text" name="disabled" value="disabled" disabled />
 						<button type="submit">Submit</button>
 					</form>
 				</body>
@@ -455,6 +474,19 @@ describe('misc', () => {
 				},
 			});
 		});

 		it('should clear all values given disabled option', () => {
 			utils.test({
 				querySubmitter: (cy: any) => cy.get('[type="submit"]'),
 				onSubmitted: (form: HTMLFormElement, submitter: any, search: any) => {
 					clearFormValues(form, ['foobar', 'bar', 'foo', 'disabled'], { includeDisabled: true });
 					expect(getFormValues(form, { includeDisabled: true })).toEqual({
 						foobar: ['', ''], baz: 'value3', bar: ['', ''],
 						disabled: '',
 					});
 				},
 			});
 		});
 	});

 	describe('duplicates', () => {
--- a/src/index.ts
+++ b/src/index.ts
@@ -1021,23 +1021,34 @@ const NAME_ATTRIBUTE_VALUE_ISINDEX = 'isindex' as const;
 /**
 * Determines if an element's value is included when its form is submitted.
 * @param el - The element.
 * @param includeDisabled - Should we include disabled field elements?
 * @returns Value determining if the element's value is included when its form is submitted.
 */
 export const isElementValueIncludedInFormSubmit = (el: HTMLElement) => {
 export const isElementValueIncludedInFormSubmit = (el: HTMLElement, includeDisabled = false) => {
  const namedEl = el as unknown as Record<string, unknown>;
  return (
    typeof namedEl[ATTRIBUTE_NAME] === 'string'
    && namedEl[ATTRIBUTE_NAME].length > 0
    && namedEl[ATTRIBUTE_NAME] !== NAME_ATTRIBUTE_VALUE_ISINDEX
    && !(ATTRIBUTE_DISABLED in namedEl && Boolean(namedEl[ATTRIBUTE_DISABLED]))
    && (includeDisabled || !(ATTRIBUTE_DISABLED in namedEl && Boolean(namedEl[ATTRIBUTE_DISABLED])))
    && isFieldElement(namedEl as unknown as HTMLElement)
  );
 };

 /**
 * Options for all form value functions.
 */
 type FormValuesOptions = {
  /**
   * Should we include disabled field elements?
   */
  includeDisabled?: true,
 }

 /**
 * Options for getting form values.
 */
 type GetFormValuesOptions = GetFieldValueOptions & {
 type GetFormValuesOptions = FormValuesOptions & GetFieldValueOptions & {
  /**
   * The element that triggered the submission of the form.
   */
@@ -1081,9 +1092,10 @@ const assertIsFormElement = (maybeForm: unknown, context: string) => {
 /**
 * Filters the form elements that can be processed.
 * @param form - The form element.
 * @param includeDisabled - Should we include disabled field elements?
 * @returns Array of key-value pairs for the field names and field elements.
 */
 const filterFieldElements = (form: HTMLFormElement) => {
 const filterFieldElements = (form: HTMLFormElement, includeDisabled = false) => {
  const formElements = form.elements as unknown as Record<string | number, HTMLElement>;
  const allFormFieldElements = Object.entries<HTMLElement>(formElements);
  return allFormFieldElements.filter(([k, el]) => (
@@ -1091,7 +1103,7 @@ const filterFieldElements = (form: HTMLFormElement) => {
    !Number.isNaN(Number(k))

    // Only the enabled/read-only elements can be enumerated.
    && isElementValueIncludedInFormSubmit(el)
    && isElementValueIncludedInFormSubmit(el, includeDisabled)
  )) as [string, HTMLElementWithName][];
 };

@@ -1104,7 +1116,7 @@ const filterFieldElements = (form: HTMLFormElement) => {
 export const getFormValues = (form: HTMLFormElement, options = {} as GetFormValuesOptions) => {
  assertIsFormElement(form, 'getFormValues');

  const fieldElements = filterFieldElements(form);
  const fieldElements = filterFieldElements(form, Boolean(options.includeDisabled));
  const fieldValues = fieldElements.reduce(
    (theFormValues, [, el]) => {
      const fieldValue = getValue(el, options);
@@ -1236,15 +1248,22 @@ const getElementsOfSameName = (fieldElementEntries: [string, HTMLElementWithName
  )
 );

 /**
 * Options for setting form values.
 */
 type SetFormValuesOptions = FormValuesOptions;

 /**
 * Sets the values of all the fields within the form through accessing the DOM nodes. Partial values
 * may be passed to set values only to certain form fields.
 * @param form - The form.
 * @param values - The form values.
 * @param options - The options.
 */
 export const setFormValues = (
  form: HTMLFormElement,
  values: unknown,
  options = {} as SetFormValuesOptions,
 ) => {
  assertIsFormElement(form, 'getFormValues');
  const valuesType = typeof values;
@@ -1258,12 +1277,17 @@ export const setFormValues = (
  }

  const objectValues = normalizeValues(values);
  const fieldElements = filterFieldElements(form);
  const fieldElements = filterFieldElements(form, Boolean(options.includeDisabled));
  const filteredFieldElements = fieldElements.filter(([, el]) => el.name in objectValues);
  const elementsWithSameName = getElementsOfSameName(filteredFieldElements);
  doSetFormValues(filteredFieldElements, elementsWithSameName, objectValues);
 };

 /**
 * Options for clearing form values.
 */
 type ClearFormValuesOptions = FormValuesOptions;

 /**
 * Clears the values of all the fields within the form through accessing the DOM nodes. Partial
 * values may be passed to set values only to certain form fields.
@@ -1272,14 +1296,16 @@ export const setFormValues = (
 *
 * @param form - The form.
 * @param fieldNames - The field names to clear their corresponding element(s).
 * @param options - The options.
 */
 export const clearFormValues = (
  form: HTMLFormElement,
  fieldNames: string | string[],
  options = {} as ClearFormValuesOptions,
 ) => {
  assertIsFormElement(form, 'clearFormValues');
  const fieldNamesNormalized = Array.isArray(fieldNames) ? fieldNames : [fieldNames];
  const fieldElements = filterFieldElements(form);
  const fieldElements = filterFieldElements(form, Boolean(options.includeDisabled));
  const filteredFieldElements = fieldElements.filter(
    ([, el]) => fieldNamesNormalized.includes(el.name),
  );