dees-catalog/ts_web/elements/dees-form.ts
2021-09-15 13:10:28 +02:00

174 lines
4.9 KiB
TypeScript

import { customElement, html, TemplateResult, DeesElement } from '@designestate/dees-element';
import { DeesInputCheckbox } from './dees-input-checkbox';
import { DeesInputText } from './dees-input-text';
import { DeesInputQuantitySelector } from './dees-input-quantityselector';
import { DeesInputRadio } from './dees-input-radio';
import * as domtools from '@designestate/dees-domtools';
import { DeesFormSubmit } from './dees-form-submit';
export type TFormElement = Array<
DeesInputCheckbox | DeesInputText | DeesInputQuantitySelector | DeesInputRadio
>;
declare global {
interface HTMLElementTagNameMap {
'dees-form': DeesForm;
}
}
@customElement('dees-form')
export class DeesForm extends DeesElement {
public static demo = () => html`
<dees-form
style="display: block; margin:auto; max-width: 500px; padding: 20px"
@formData=${async (eventArg) => {
const form: DeesForm = eventArg.currentTarget;
form.setStatus('pending', 'authenticating...');
await domtools.plugins.smartdelay.delayFor(1000);
form.setStatus('success', 'authenticated!');
}}
>
<dees-input-text .required="${true}" key="hello1" label="a text"></dees-input-text>
<dees-input-text .required="${true}" key="hello2" label="also a text"></dees-input-text>
<dees-input-checkbox
.required="${true}"
key="hello3"
label="another text"
></dees-input-checkbox>
<dees-form-submit>Submit</dees-form-submit>
</dees-form>
`;
public name: string = 'myform';
public changeSubject = new domtools.rxjs.Subject();
public render(): TemplateResult {
return html`
<style>
:host {
display: contents;
}
</style>
<slot></slot>
`;
}
public firstUpdated() {
const formChildren = this.getFormChildren();
this.checkRequiredStatus();
for (const child of formChildren) {
child.changeSubject.subscribe(async (elementArg: TFormElement) => {
const valueObject = await this.gatherData();
this.changeSubject.next(valueObject);
console.log(valueObject);
this.checkRequiredStatus();
});
}
}
public getFormChildren() {
const children: Array<DeesElement> = this.children as any;
const formChildren: TFormElement = [];
for (const child of children) {
if (
child instanceof DeesInputCheckbox ||
child instanceof DeesInputText ||
child instanceof DeesInputQuantitySelector
) {
formChildren.push(child);
}
}
return formChildren;
}
public getSubmitButton() {
const children: Array<DeesElement> = this.children as any;
let submitButton: DeesFormSubmit;
for (const childArg of children) {
if (childArg instanceof DeesFormSubmit) {
submitButton = childArg;
}
}
return submitButton;
}
public async checkRequiredStatus() {
console.log('checking the required status.');
let requiredOK = true;
for (const childArg of this.getFormChildren()) {
if (childArg.required && !childArg.value) {
requiredOK = false;
}
}
if (this.getSubmitButton()) {
this.getSubmitButton().disabled = !requiredOK;
}
}
public async gatherData() {
const children = this.getFormChildren();
const valueObject: { [key: string]: string | number | boolean } = {};
for (const child of children) {
valueObject[child.key] = child.value;
}
return valueObject;
}
public async gatherAndDispatch() {
const valueObject = await this.gatherData();
const formDataEvent = new CustomEvent('formData', {
detail: {
data: valueObject,
},
bubbles: true,
});
this.dispatchEvent(formDataEvent);
console.log('dispatched data:');
console.log(valueObject);
}
public setStatus(
visualStateArg: 'normal' | 'pending' | 'error' | 'success',
textStateArg: string
) {
const inputChildren = this.getFormChildren();
const submitButton = this.getSubmitButton();
switch (visualStateArg) {
case 'normal':
submitButton.disabled = false;
submitButton.status = 'normal';
for (const inputChild of inputChildren) {
inputChild.disabled = false;
}
break;
case 'pending':
submitButton.disabled = true;
submitButton.status = 'pending';
for (const inputChild of inputChildren) {
inputChild.disabled = true;
}
break;
case 'success':
submitButton.disabled = true;
submitButton.status = 'success';
for (const inputChild of inputChildren) {
inputChild.disabled = true;
}
break;
case 'error':
submitButton.disabled = true;
submitButton.status = 'error';
for (const inputChild of inputChildren) {
inputChild.disabled = true;
}
break;
}
submitButton.text = textStateArg;
}
}