134 lines
3.7 KiB
TypeScript
134 lines
3.7 KiB
TypeScript
import { isFormInputElement, matchInputElement } from '@coldwired/utils';
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import { ApplicationController } from './application_controller';
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const AUTOSUBMIT_DEBOUNCE_DELAY = 500;
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const AUTOSUBMIT_DATE_DEBOUNCE_DELAY = 5000;
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const AUTOSUBMIT_EVENTS = ['input', 'change', 'blur'];
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export class AutosubmitController extends ApplicationController {
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static targets = ['submitter', 'input'];
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declare readonly submitterTarget: HTMLButtonElement | HTMLInputElement;
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declare readonly hasSubmitterTarget: boolean;
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declare readonly inputTarget: HTMLInputElement;
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#dateTimeChangedInputs = new WeakSet<HTMLElement>();
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connect() {
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this.on('input', (event) => this.onInput(event));
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this.on('change', (event) => this.onChange(event));
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this.on('blur', (event) => this.onBlur(event));
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}
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private onChange(event: Event) {
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const target = this.findTargetElement(event);
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matchInputElement(target, {
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date: (target) => {
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if (target.value.trim() == '' || !isNaN(Date.parse(target.value))) {
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this.#dateTimeChangedInputs.add(target);
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this.debounce(this.submit, AUTOSUBMIT_DATE_DEBOUNCE_DELAY);
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} else {
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this.#dateTimeChangedInputs.delete(target);
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this.cancelDebounce(this.submit);
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}
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},
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text: () => this.submitNow(),
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changeable: () => this.submitNow(),
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hidden: () => this.submitNow()
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});
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}
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private onInput(event: Event) {
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const target = this.findTargetElement(event);
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matchInputElement(target, {
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date: () => {},
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inputable: () => this.debounce(this.submit, AUTOSUBMIT_DEBOUNCE_DELAY),
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hidden: () => this.debounce(this.submit, AUTOSUBMIT_DEBOUNCE_DELAY)
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});
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}
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private onBlur(event: Event) {
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const target = this.findTargetElement(event);
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if (!target) return;
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matchInputElement(target, {
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date: () => {
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Promise.resolve().then(() => {
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if (this.#dateTimeChangedInputs.has(target)) {
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this.submitNow();
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}
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});
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}
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});
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}
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private findTargetElement(event: Event) {
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const target = event.target;
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if (
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!isFormInputElement(target) ||
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this.preventAutosubmit(target, event.type)
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) {
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return null;
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}
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return target;
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}
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private preventAutosubmit(
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target: HTMLElement & { disabled?: boolean } & { value?: string },
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type: string
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) {
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if (target.disabled) {
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return true;
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}
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if (this.hasInputTarget && this.inputTarget != target) {
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return true;
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}
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if (
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Boolean(target.getAttribute('data-no-autosubmit-on-empty')) &&
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target.value == ''
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) {
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return true;
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}
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const noAutosubmit = this.parseNoAutosubmit(
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target.getAttribute('data-no-autosubmit')
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);
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if (Array.isArray(noAutosubmit)) {
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return noAutosubmit.includes(type);
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}
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return noAutosubmit;
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}
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private parseNoAutosubmit(value?: string | null): boolean | string[] {
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if (value == null) {
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return false;
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}
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const eventTypes = value
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.split(' ')
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.map((token) => token.trim())
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.filter((eventType) => AUTOSUBMIT_EVENTS.includes(eventType));
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return eventTypes.length == 0 ? true : eventTypes;
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}
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private submitNow() {
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this.cancelDebounce(this.submit);
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this.submit();
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}
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private submit() {
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const submitter = this.hasSubmitterTarget ? this.submitterTarget : null;
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const form =
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submitter?.form ?? this.element.closest<HTMLFormElement>('form');
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// Safari does not support "formaction" attribute on submitter passed to requestSubmit :(
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if (submitter && navigator.userAgent.indexOf('Safari') > -1) {
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submitter.click();
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} else {
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form?.requestSubmit(submitter);
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}
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}
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}
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