Cleanup of textfield code

This commit is contained in:
Pieter Vander Vennet 2020-09-25 12:44:04 +02:00
parent 1f41444726
commit 3667f28f15
9 changed files with 293 additions and 219 deletions

View file

@ -1,8 +1,6 @@
import {UIElement} from "./UIElement";
import {OsmConnection} from "../Logic/Osm/OsmConnection";
import Translations from "./i18n/Translations";
import {State} from "../State";
import {UIEventSource} from "../Logic/UIEventSource";
export class CenterMessageBox extends UIElement {
@ -16,7 +14,7 @@ export class CenterMessageBox extends UIElement {
this.ListenTo(State.state.layerUpdater.sufficentlyZoomed);
}
private prep(): { innerHtml: string, done: boolean } {
private static prep(): { innerHtml: string, done: boolean } {
if (State.state.centerMessage.data != "") {
return {innerHtml: State.state.centerMessage.data, done: false};
}
@ -37,7 +35,7 @@ export class CenterMessageBox extends UIElement {
}
InnerRender(): string {
return this.prep().innerHtml;
return CenterMessageBox.prep().innerHtml;
}
@ -50,7 +48,7 @@ export class CenterMessageBox extends UIElement {
}
pstyle.pointerEvents = "none";
if (this.prep().done) {
if (CenterMessageBox.prep().done) {
pstyle.opacity = "0";
} else {
pstyle.opacity = "0.5";

View file

@ -6,6 +6,7 @@ import SettingsTable from "./SettingsTable";
import SingleSetting from "./SingleSetting";
import {TextField} from "../Input/TextField";
import MultiLingualTextFields from "../Input/MultiLingualTextFields";
import ValidatedTextField from "../Input/ValidatedTextField";
export default class GeneralSettingsPanel extends UIElement {
@ -17,15 +18,13 @@ export default class GeneralSettingsPanel extends UIElement {
super(undefined);
const languagesField = new TextField<string[]>(
{
fromString: str => str?.split(";")?.map(str => str.trim().toLowerCase()),
toString: languages => languages.join(";"),
}
);
const languagesField =
ValidatedTextField.Mapped(
str => str?.split(";")?.map(str => str.trim().toLowerCase()),
languages => languages.join(";"));
this.languages = languagesField.GetValue();
const version = TextField.StringInput();
const version = new TextField();
const current_datetime = new Date();
let formatted_date = current_datetime.getFullYear() + "-" + (current_datetime.getMonth() + 1) + "-" + current_datetime.getDate() + " " + current_datetime.getHours() + ":" + current_datetime.getMinutes() + ":" + current_datetime.getSeconds()
version.GetValue().setData(formatted_date);
@ -35,7 +34,7 @@ export default class GeneralSettingsPanel extends UIElement {
const settingsTable = new SettingsTable(
[
new SingleSetting(configuration, TextField.StringInput(), "id",
new SingleSetting(configuration, new TextField({placeholder:"id"}), "id",
"Identifier", "The identifier of this theme. This should be a lowercase, unique string"),
new SingleSetting(configuration, version, "version", "Version",
"A version to indicate the theme version. Ideal is the date you created or updated the theme"),
@ -47,26 +46,26 @@ export default class GeneralSettingsPanel extends UIElement {
"The short description is shown as subtext in the social preview and on the 'more screen'-buttons. It should be at most one sentence of around ~25words"),
new SingleSetting(configuration, new MultiLingualTextFields(this.languages, true),
"description", "Description", "The description is shown in the welcome-message when opening MapComplete. It is a small text welcoming users"),
new SingleSetting(configuration, TextField.StringInput(), "icon",
new SingleSetting(configuration, new TextField({placeholder: "URL to icon"}), "icon",
"Icon", "A visual representation for your theme; used as logo in the welcomeMessage. If your theme is official, used as favicon and webapp logo",
{
showIconPreview: true
}),
new SingleSetting(configuration, TextField.NumberInput("nat", n => n < 23), "startZoom","Initial zoom level",
new SingleSetting(configuration, ValidatedTextField.NumberInput("nat", n => n < 23), "startZoom","Initial zoom level",
"When a user first loads MapComplete, this zoomlevel is shown."+locationRemark),
new SingleSetting(configuration, TextField.NumberInput("float", n => (n < 90 && n > -90)), "startLat","Initial latitude",
new SingleSetting(configuration, ValidatedTextField.NumberInput("float", n => (n < 90 && n > -90)), "startLat","Initial latitude",
"When a user first loads MapComplete, this latitude is shown as location."+locationRemark),
new SingleSetting(configuration, TextField.NumberInput("float", n => (n < 180 && n > -180)), "startLon","Initial longitude",
new SingleSetting(configuration, ValidatedTextField.NumberInput("float", n => (n < 180 && n > -180)), "startLon","Initial longitude",
"When a user first loads MapComplete, this longitude is shown as location."+locationRemark),
new SingleSetting(configuration, TextField.NumberInput("pfloat", n => (n < 0.5 )), "widenFactor","Query widening",
new SingleSetting(configuration, ValidatedTextField.NumberInput("pfloat", n => (n < 0.5 )), "widenFactor","Query widening",
"When a query is run, the data within bounds of the visible map is loaded.\n" +
"However, users tend to pan and zoom a lot. It is pretty annoying if every single pan means a reloading of the data.\n" +
"For this, the bounds are widened in order to make a small pan still within bounds of the loaded data.\n" +
"IF widenfactor is 0, this feature is disabled. A recommended value is between 0.5 and 0.01 (the latter for very dense queries)"),
new SingleSetting(configuration, TextField.StringInput(), "socialImage",
new SingleSetting(configuration, new TextField({placeholder: "URL to social image"}), "socialImage",
"og:image (aka Social Image)", "<span class='alert'>Only works on incorporated themes</span>" +
"The Social Image is set as og:image for the HTML-site and helps social networks to show a preview", {showIconPreview: true})
], currentSetting);

View file

@ -19,6 +19,7 @@ import PresetInputPanel from "./PresetInputPanel";
import {UserDetails} from "../../Logic/Osm/OsmConnection";
import {State} from "../../State";
import {FixedUiElement} from "../Base/FixedUiElement";
import ValidatedTextField from "../Input/ValidatedTextField";
/**
* Shows the configuration for a single layer
@ -86,17 +87,17 @@ export default class LayerPanel extends UIElement {
this.settingsTable = new SettingsTable([
setting(TextField.StringInput(), "id", "Id", "An identifier for this layer<br/>This should be a simple, lowercase, human readable string that is used to identify the layer."),
setting(new TextField({placeholder:"Layer id"}), "id", "Id", "An identifier for this layer<br/>This should be a simple, lowercase, human readable string that is used to identify the layer."),
setting(new MultiLingualTextFields(languages), "name", "Name", "The human-readable name of this layer<br/>Used in the layer control panel and the 'Personal theme'"),
setting(new MultiLingualTextFields(languages, true), "description", "Description", "A description for this layer.<br/>Shown in the layer selections and in the personal theme"),
setting(TextField.NumberInput("nat", n => n < 23), "minzoom", "Minimal zoom",
setting(ValidatedTextField.NumberInput("nat", n => n < 23), "minzoom", "Minimal zoom",
"The minimum zoomlevel needed to load and show this layer."),
setting(new DropDown("", [
{value: 0, shown: "Show ways and areas as ways and lines"},
{value: 2, shown: "Show both the ways/areas and the centerpoints"},
{value: 1, shown: "Show everything as centerpoint"}]), "wayHandling", "Way handling",
"Describes how ways and areas are represented on the map: areas can be represented as the area itself, or it can be converted into the centerpoint"),
setting(TextField.NumberInput("int", n => n <= 100), "hideUnderlayingFeaturesMinPercentage", "Max allowed overlap percentage",
setting(ValidatedTextField.NumberInput("int", n => n <= 100), "hideUnderlayingFeaturesMinPercentage", "Max allowed overlap percentage",
"Consider that we want to show 'Nature Reserves' and 'Forests'. Now, ofter, there are pieces of forest mapped _in_ the nature reserve.<br/>" +
"Now, showing those pieces of forest overlapping with the nature reserve truly clutters the map and is very user-unfriendly.<br/>" +
"The features are placed layer by layer. If a feature below a feature on this layer overlaps for more then 'x'-percent, the underlying feature is hidden."),

View file

@ -9,6 +9,7 @@ export default class InputElementMap<T, X> extends InputElement<X> {
private readonly fromX: (x: X) => T;
private readonly toX: (t: T) => X;
private readonly _value: UIEventSource<X>;
public readonly IsSelected: UIEventSource<boolean>;
constructor(inputElement: InputElement<T>,
isSame: (x0: X, x1: X) => boolean,
@ -32,8 +33,7 @@ export default class InputElementMap<T, X> extends InputElement<X> {
}
return newX;
}), extraSources, x => {
const newT = fromX(x);
return newT;
return fromX(x);
});
}
@ -45,10 +45,15 @@ export default class InputElementMap<T, X> extends InputElement<X> {
return this._inputElement.InnerRender();
}
IsSelected: UIEventSource<boolean>;
IsValid(x: X): boolean {
return this._inputElement.IsValid(this.fromX(x));
if(x === undefined){
return false;
}
const t = this.fromX(x);
if(t === undefined){
return false;
}
return this._inputElement.IsValid(t);
}
}

View file

@ -2,208 +2,86 @@ import {UIElement} from "../UIElement";
import {InputElement} from "./InputElement";
import Translations from "../i18n/Translations";
import {UIEventSource} from "../../Logic/UIEventSource";
import * as EmailValidator from "email-validator";
import {parsePhoneNumberFromString} from "libphonenumber-js";
import {DropDown} from "./DropDown";
export class ValidatedTextField {
public static explanations = {
"string": "A basic, 255-char string",
"date": "A date",
"wikidata": "A wikidata identifier, e.g. Q42",
"int": "A number",
"nat": "A positive number",
"float": "A decimal",
"pfloat": "A positive decimal",
"email": "An email adress",
"url": "A url",
"phone": "A phone number"
}
public static TypeDropdown() : DropDown<string>{
const values : {value: string, shown: string}[] = [];
const expl = ValidatedTextField.explanations;
for(const key in expl){
values.push({value: key, shown: `${key} - ${expl[key]}`})
}
return new DropDown<string>("", values)
}
public static inputValidation = {
"$": () => true,
"string": () => true,
"date": () => true, // TODO validate and add a date picker
"wikidata": () => true, // TODO validate wikidata IDS
"int": (str) => {str = ""+str; return str !== undefined && str.indexOf(".") < 0 && !isNaN(Number(str))},
"nat": (str) => {str = ""+str; return str !== undefined && str.indexOf(".") < 0 && !isNaN(Number(str)) && Number(str) > 0},
"float": (str) => !isNaN(Number(str)),
"pfloat": (str) => !isNaN(Number(str)) && Number(str) >= 0,
"email": (str) => EmailValidator.validate(str),
"url": (str) => str,
"phone": (str, country) => {
return parsePhoneNumberFromString(str, country?.toUpperCase())?.isValid() ?? false;
}
}
public static formatting = {
"phone": (str, country) => {
console.log("country formatting", country)
return parsePhoneNumberFromString(str, country?.toUpperCase()).formatInternational()
}
}
}
export class TextField<T> extends InputElement<T> {
public static StringInput(textArea: boolean = false): TextField<string> {
return new TextField<string>({
toString: str => str,
fromString: str => str,
textArea: textArea
});
}
public static KeyInput(allowEmpty : boolean = false): TextField<string>{
return new TextField<string>({
placeholder: "key",
fromString: str => {
if (str?.match(/^[a-zA-Z][a-zA-Z0-9:_-]*$/)) {
return str;
}
if(str === "" && allowEmpty){
return "";
}
return undefined
},
toString: str => str
});
}
public static NumberInput(type: string = "int", extraValidation: (number: Number) => boolean = undefined) : TextField<number>{
const isValid = ValidatedTextField.inputValidation[type];
extraValidation = extraValidation ?? (() => true)
return new TextField({
fromString: str => {
if(!isValid(str)){
return undefined;
}
const n = Number(str);
if(!extraValidation(n)){
return undefined;
}
return n;
},
toString: num => ""+num,
placeholder: type
});
}
export class TextField extends InputElement<string> {
private readonly value: UIEventSource<string>;
private readonly mappedValue: UIEventSource<T>;
public readonly enterPressed = new UIEventSource<string>(undefined);
private readonly _placeholder: UIElement;
private readonly _fromString?: (string: string) => T;
private readonly _toString: (t: T) => string;
private readonly startValidated: boolean;
public readonly IsSelected: UIEventSource<boolean> = new UIEventSource<boolean>(false);
private readonly _isArea: boolean;
private readonly _textAreaRows: number;
constructor(options: {
/**
* Shown as placeholder
*/
constructor(options?: {
placeholder?: string | UIElement,
/**
* Converts the T to a (canonical) string
* @param t
*/
toString: (t: T) => string,
/**
* Converts the string to a T
* Returns undefined if invalid
* @param string
*/
fromString: (string: string) => T,
value?: UIEventSource<T>,
startValidated?: boolean,
value?: UIEventSource<string>,
textArea?: boolean,
textAreaRows?: number,
isValid?: ((s: string) => boolean)
}) {
super(undefined);
const self = this;
this.value = new UIEventSource<string>("");
options = options ?? {};
this._isArea = options.textArea ?? false;
this.startValidated = options.startValidated ?? false;
this.mappedValue = options?.value ?? new UIEventSource<T>(undefined);
this.mappedValue.addCallback(() => self.InnerUpdate());
this.value = options?.value ?? new UIEventSource<string>(undefined);
// @ts-ignore
this._fromString = options.fromString ?? ((str) => (str))
this.value.addCallback((str) => this.mappedValue.setData(options.fromString(str)));
this.mappedValue.addCallback((t) => this.value.setData(options.toString(t)));
this._textAreaRows = options.textAreaRows;
this._placeholder = Translations.W(options.placeholder ?? "");
this.ListenTo(this._placeholder._source);
this._toString = options.toString ?? ((t) => ("" + t));
this.onClick(() => {
self.IsSelected.setData(true)
});
this.mappedValue.addCallback((t) => {
if (t === undefined || t === null) {
return;
}
const field = document.getElementById('text-' + this.id);
this.value.addCallback((t) => {
const field = document.getElementById(this.id);
if (field === undefined || field === null) {
return;
}
// @ts-ignore
field.value = options.toString(t);
});
}
if (options.isValid) {
field.className = options.isValid(t) ? "" : "invalid";
}
GetValue(): UIEventSource<T> {
return this.mappedValue;
if (t === undefined || t === null) {
// @ts-ignore
return;
}
// @ts-ignore
field.value = t;
});
}
GetValue(): UIEventSource<string> {
return this.value;
}
InnerRender(): string {
if(this._isArea){
return `<textarea id="text-${this.id}" class="form-text-field" rows="${this._textAreaRows}" cols="50" style="max-width: 100%; width: 100%; box-sizing: border-box"></textarea>`
if (this._isArea) {
return `<textarea id="${this.id}" class="form-text-field" rows="${this._textAreaRows}" cols="50" style="max-width: 100%; width: 100%; box-sizing: border-box"></textarea>`
}
const placeholder = this._placeholder.InnerRender().replace("'", "&#39");
return `<form onSubmit='return false' class='form-text-field'>` +
`<input type='text' placeholder='${placeholder}' id='text-${this.id}'>` +
`<input type='text' placeholder='${placeholder}' id='${this.id}'>` +
`</form>`;
}
InnerUpdate() {
const field = document.getElementById('text-' + this.id);
if (field === null) {
return;
}
this.mappedValue.addCallback((data) => {
field.className = data !== undefined ? "valid" : "invalid";
});
field.className = this.mappedValue.data !== undefined ? "valid" : "invalid";
InnerUpdate(field) {
const self = this;
field.oninput = () => {
// @ts-ignore
self.value.setData(field.value);
};
if (this.value.data !== undefined && this.value.data !== null) {
// @ts-ignore
field.value = this.value.data;
}
field.addEventListener("focusin", () => self.IsSelected.setData(true));
field.addEventListener("focusout", () => self.IsSelected.setData(false));
@ -215,16 +93,6 @@ export class TextField<T> extends InputElement<T> {
}
});
if (this.IsValid(this.mappedValue.data)) {
const expected = this._toString(this.mappedValue.data);
// @ts-ignore
if (field.value !== expected) {
// @ts-ignore
field.value = expected;
}
}
}
public SetCursorPosition(i: number) {
@ -232,7 +100,7 @@ export class TextField<T> extends InputElement<T> {
if(field === undefined || field === null){
return;
}
if(i === -1){
if (i === -1) {
// @ts-ignore
i = field.value.length;
}
@ -241,12 +109,8 @@ export class TextField<T> extends InputElement<T> {
field.setSelectionRange(i, i);
}
IsValid(t: T): boolean {
if (t === undefined || t === null) {
return false;
}
const result = this._toString(t);
return result !== undefined && result !== null;
IsValid(t: string): boolean {
return !(t === undefined || t === null);
}
}

View file

@ -0,0 +1,196 @@
import {DropDown} from "./DropDown";
import * as EmailValidator from "email-validator";
import {parsePhoneNumberFromString} from "libphonenumber-js";
import InputElementMap from "./InputElementMap";
import {InputElement} from "./InputElement";
import {TextField} from "./TextField";
import {UIElement} from "../UIElement";
import {UIEventSource} from "../../Logic/UIEventSource";
export default class ValidatedTextField {
private static tp(name: string,
explanation: string,
isValid?: ((s: string, country?: string) => boolean),
reformat?: ((s: string, country?: string) => string)): {
name: string,
explanation: string,
isValid: ((s: string, country?: string) => boolean),
reformat?: ((s: string, country?: string) => string)
} {
if (isValid === undefined) {
isValid = () => true;
}
if (reformat === undefined) {
reformat = (str, _) => str;
}
return {
name: name,
explanation: explanation,
isValid: isValid,
reformat: reformat
}
}
public static tpList = [
ValidatedTextField.tp(
"string",
"A basic string"),
ValidatedTextField.tp(
"date",
"A date"),
ValidatedTextField.tp(
"wikidata",
"A wikidata identifier, e.g. Q42"),
ValidatedTextField.tp(
"int",
"A number",
(str) => {
str = "" + str;
return str !== undefined && str.indexOf(".") < 0 && !isNaN(Number(str))
}),
ValidatedTextField.tp(
"nat",
"A positive number or zero",
(str) => {
str = "" + str;
return str !== undefined && str.indexOf(".") < 0 && !isNaN(Number(str)) && Number(str) >= 0
}),
ValidatedTextField.tp(
"pnat",
"A strict positive number",
(str) => {
str = "" + str;
return str !== undefined && str.indexOf(".") < 0 && !isNaN(Number(str)) && Number(str) > 0
}),
ValidatedTextField.tp(
"float",
"A decimal",
(str) => !isNaN(Number(str))),
ValidatedTextField.tp(
"pfloat",
"A positive decimal (incl zero)",
(str) => !isNaN(Number(str)) && Number(str) >= 0),
ValidatedTextField.tp(
"email",
"An email adress",
(str) => EmailValidator.validate(str)),
ValidatedTextField.tp(
"url",
"A url"),
ValidatedTextField.tp(
"phone",
"A phone number",
(str, country: any) => {
return parsePhoneNumberFromString(str, country?.toUpperCase())?.isValid() ?? false
},
(str, country: any) => {
console.log("country formatting", country)
return parsePhoneNumberFromString(str, country?.toUpperCase()).formatInternational()
}
)
]
private static allTypesDict(){
const types = {};
for (const tp of ValidatedTextField.tpList) {
types[tp.name] = tp;
}
return types;
}
public static TypeDropdown(): DropDown<string> {
const values: { value: string, shown: string }[] = [];
const expl = ValidatedTextField.tpList;
for (const key in expl) {
values.push({value: key, shown: `${key} - ${expl[key]}`})
}
return new DropDown<string>("", values)
}
public static AllTypes = ValidatedTextField.allTypesDict();
public static InputForType(type: string): TextField {
return new TextField({
placeholder: type,
isValid: ValidatedTextField.AllTypes[type]
})
}
public static NumberInput(type: string = "int", extraValidation: (number: Number) => boolean = undefined): InputElement<number> {
const isValid = ValidatedTextField.AllTypes[type].isValid;
extraValidation = extraValidation ?? (() => true)
const fromString = str => {
if (!isValid(str)) {
return undefined;
}
const n = Number(str);
if (!extraValidation(n)) {
return undefined;
}
return n;
};
const toString = num => {
if (num === undefined) {
return undefined;
}
return "" + num;
};
const textField = ValidatedTextField.InputForType(type);
return new InputElementMap(textField, (n0, n1) => n0 === n1, fromString, toString)
}
public static KeyInput(allowEmpty: boolean = false): InputElement<string> {
function fromString(str) {
if (str?.match(/^[a-zA-Z][a-zA-Z0-9:_-]*$/)) {
return str;
}
if (str === "" && allowEmpty) {
return "";
}
return undefined
}
const toString = str => str
function isSame(str0, str1) {
return str0 === str1;
}
const textfield = new TextField({
placeholder: "key",
isValid: str => fromString(str) !== undefined,
value: new UIEventSource<string>("")
});
return new InputElementMap(textfield, isSame, fromString, toString);
}
static Mapped<T>(fromString: (str) => T, toString: (T) => string, options?: {
placeholder?: string | UIElement,
value?: UIEventSource<string>,
startValidated?: boolean,
textArea?: boolean,
textAreaRows?: number,
isValid?: ((string: string) => boolean)
}): InputElement<T> {
const textField = new TextField(options);
return new InputElementMap(
textField, (a, b) => a === b,
fromString, toString
);
}
}

View file

@ -14,9 +14,9 @@ import {InputElement} from "./Input/InputElement";
import {SaveButton} from "./SaveButton";
import {RadioButton} from "./Input/RadioButton";
import {FixedInputElement} from "./Input/FixedInputElement";
import {TextField, ValidatedTextField} from "./Input/TextField";
import {TagRenderingOptions} from "../Customizations/TagRenderingOptions";
import {FixedUiElement} from "./Base/FixedUiElement";
import ValidatedTextField from "./Input/ValidatedTextField";
export class TagRendering extends UIElement implements TagDependantUIElement {
@ -202,7 +202,7 @@ export class TagRendering extends UIElement implements TagDependantUIElement {
InputElement<TagsFilter> {
let freeformElement: TextField<TagsFilter> = undefined;
let freeformElement: InputElement<TagsFilter> = undefined;
if (options.freeform !== undefined) {
freeformElement = this.InputForFreeForm(options.freeform);
}
@ -278,7 +278,6 @@ export class TagRendering extends UIElement implements TagDependantUIElement {
es.data.push(i);
es.ping();
}
freeformElement.SetCursorPosition(-1);
});
return inputEl;
@ -305,7 +304,7 @@ export class TagRendering extends UIElement implements TagDependantUIElement {
renderTemplate: string | Translation,
placeholder?: string | Translation,
extraTags?: TagsFilter,
}): TextField<TagsFilter> {
}): InputElement<TagsFilter> {
if (freeform?.template === undefined) {
return undefined;
}
@ -313,13 +312,24 @@ export class TagRendering extends UIElement implements TagDependantUIElement {
const prepost = Translations.W(freeform.template).InnerRender()
.replace("$$$", "$string$")
.split("$");
const type = prepost[1];
let type = prepost[1];
let isValid = ValidatedTextField.inputValidation[type];
let isTextArea = false;
if(type === "text"){
isTextArea = true;
type = "string";
}
if(ValidatedTextField.AllTypes[type] === undefined){
console.error("Type:",type, ValidatedTextField.AllTypes)
throw "Unkown type: "+type;
}
let isValid = ValidatedTextField.AllTypes[type].isValid;
if (isValid === undefined) {
isValid = () => true;
}
let formatter = ValidatedTextField.formatting[type] ?? ((str) => str);
let formatter = ValidatedTextField.AllTypes[type].reformat ?? ((str) => str);
const pickString =
(string: any) => {
@ -361,12 +371,9 @@ export class TagRendering extends UIElement implements TagDependantUIElement {
}
return undefined;
}
return new TextField({
placeholder: this._freeform.placeholder,
fromString: pickString,
toString: toString,
});
return ValidatedTextField.Mapped(
pickString, toString, {placeholder: this._freeform.placeholder, isValid: isValid, textArea: isTextArea}
)
}

View file

@ -230,7 +230,7 @@
"de": "Betrieben von {operator}"
},
"freeform": {
"type": "text",
"type": "string",
"key": "operator"
}
},

10
test.ts
View file

@ -1,4 +1,8 @@
import {UIEventSource} from "./Logic/UIEventSource";
import DeleteImage from "./UI/Image/DeleteImage";
import ValidatedTextField from "./UI/Input/ValidatedTextField";
import {VariableUiElement} from "./UI/Base/VariableUIElement";
new DeleteImage("image", new UIEventSource<any>({"image":"url"})).AttachTo("maindiv");
const vtf= ValidatedTextField.KeyInput(true);
vtf.AttachTo('maindiv')
vtf.GetValue().addCallback(console.log)
new VariableUiElement(vtf.GetValue().map(n => ""+n)).AttachTo("extradiv")