83 lines
2.1 KiB
TypeScript
83 lines
2.1 KiB
TypeScript
import {InputElement} from "./InputElement";
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import {UIEventSource} from "../../Logic/UIEventSource";
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import {Utils} from "../../Utils";
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import {UIElement} from "../UIElement";
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/**
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* Supports multi-input
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*/
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export default class CheckBoxes extends InputElement<number[]> {
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IsSelected: UIEventSource<boolean> = new UIEventSource<boolean>(false);
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private readonly value: UIEventSource<number[]>;
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private readonly _elements: UIElement[]
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constructor(elements: UIElement[]) {
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super(undefined);
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this._elements = Utils.NoNull(elements);
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this.dumbMode = false;
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this.value = new UIEventSource<number[]>([])
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this.ListenTo(this.value);
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}
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IsValid(ts: number[]): boolean {
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return ts !== undefined;
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}
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GetValue(): UIEventSource<number[]> {
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return this.value;
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}
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private IdFor(i) {
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return 'checkmark-' + this.id + '-' + i;
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}
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InnerRender(): string {
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let body = "";
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for (let i = 0; i < this._elements.length; i++) {
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let el = this._elements[i];
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const htmlElement =
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`<input type="checkbox" id="${this.IdFor(i)}"><label for="${this.IdFor(i)}">${el.Render()}</label><br/>`;
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body += htmlElement;
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}
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return `<form id='${this.id}'>${body}</form>`;
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}
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protected InnerUpdate(htmlElement: HTMLElement) {
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super.InnerUpdate(htmlElement);
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const self = this;
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for (let i = 0; i < this._elements.length; i++) {
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const el = document.getElementById(this.IdFor(i));
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if(this.value.data.indexOf(i) >= 0){
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// @ts-ignore
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el.checked = true;
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}
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el.onchange = () => {
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const index = self.value.data.indexOf(i);
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// @ts-ignore
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if(el.checked && index < 0){
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self.value.data.push(i);
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self.value.ping();
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}else if(index >= 0){
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self.value.data.splice(index,1);
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self.value.ping();
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}
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}
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}
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}
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} |