58 lines
1.4 KiB
JavaScript
58 lines
1.4 KiB
JavaScript
import * as html from "./html.js";
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export default class Selection {
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constructor(component) {
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this._component = component;
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this._items = []; // FIXME ukladat skutecne HTML? co kdyz nastane refresh?
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this._node = html.node("cyp-commands", {hidden:true});
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const button = this.addCommand(_ => this.clear(), {icon:"close", label:"Clear"});
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button.classList.add("last");
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}
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clear() {
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while (this._items.length) { this._remove(this._items[0]); }
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}
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toggle(node) {
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if (this._items.includes(node)) {
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this._remove(node);
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} else {
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this._add(node);
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}
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}
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addCommand(cb, options) {
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const button = html.button({icon:options.icon}, "", this._node);
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html.node("span", {}, options.label, button);
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button.addEventListener("click", _ => cb(this._items));
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return button;
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}
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_add(node) {
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const length = this._items.length;
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this._items.push(node);
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node.classList.add("selected");
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if (length == 0) { this._show(); }
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}
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_remove(node) {
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const index = this._items.indexOf(node);
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this._items.splice(index, 1);
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node.classList.remove("selected");
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if (this._items.length == 0) { this._hide(); }
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}
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_show() {
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const parent = this._component.closest("cyp-app").querySelector("footer");
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parent.appendChild(this._node);
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this._node.offsetWidth; // FIXME jde lepe?
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this._node.hidden = false;
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}
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_hide() {
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this._node.hidden = true;
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this._node.remove();
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}
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}
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