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deka-dom-el/test/components/todosComponent.js

88 lines
2.3 KiB
JavaScript

import { style, el, dispatchEvent, on, S } from '../exports.js';
const className= style.host(todosComponent).css`
:host{
display: flex;
flex-flow: column nowrap;
}
:host input{
margin-inline-start: .5em;
}
:host button{
margin-inline-start: 1em;
}
:host output{
white-space: pre;
}
`;
/** @param {{ todos: string[] }} */
export function todosComponent({ todos= [ "Task A" ] }= {}){
const todosS= S(todos.map(t=> S(t)), {
add(v){ this.value.push(S(v)); },
remove(i){ this.value.splice(i, 1); },
[S.symbols.onclear](){ S.clear(...this.value); },
});
const name= "todoName";
const onsubmitAdd= on("submit", event=> {
const el= event.target.elements[name];
event.preventDefault();
S.action(todosS, "add", el.value);
el.value= "";
});
const onremove= on("remove", event=>
S.action(todosS, "remove", event.detail));
const ul_todos= el("ul").append(
S.el(todosS, ts=> ts
.map((textContent, value)=>
el(todoComponent, { textContent, value, className }, onremove))
));
return el("div", { className }).append(
el("div").append(
el("h2", "Todos:"),
el("h3", "List of todos:"),
S.el(todosS, ts=> !ts.length
? el("p", "No todos yet")
: ul_todos),
el("p", "Click to the text to edit it.")
),
el("form", null, onsubmitAdd).append(
el("h3", "Add a todo:"),
el("label", "New todo: ").append(
el("input", { name, type: "text", required: true }),
),
el("button", "+")
),
el("div").append(
el("h3", "Output (JSON):"),
el("output", S(()=> JSON.stringify(todosS, null, "\t")))
)
)
}
/**
* @type {ddeComponent<
* { textContent: ddeSignal<string, any>, value: number },
* HTMLLIElement,
* [ "click" ]
* >}
* */
function todoComponent({ textContent, value }, host){
const onclick= on("click", event=> {
const value= Number(event.target.value);
event.preventDefault();
event.stopPropagation();
dispatchEvent(host(), "remove", value);
});
const is_editable= S(false);
const onedited= on("change", ev=> {
textContent(ev.target.value);
is_editable(false);
});
return el("li").append(
S.el(is_editable, is=> is
? el("input", { value: textContent(), type: "text" }, onedited)
: el("span", { textContent, onclick: is_editable.bind(null, true) }),
),
el("button", { type: "button", value, textContent: "-" }, onclick)
);
}