happy-dom-without-node
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Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. It includes many web standards from WHATWG DOM and HTML.
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JavaScript
import HTMLElement from '../html-element/HTMLElement.js';
import * as PropertySymbol from '../../PropertySymbol.js';
/**
* HTML Slot Element.
*
* Reference:
* https://developer.mozilla.org/en-US/docs/Web/API/HTMLSlotElement.
*/
export default class HTMLSlotElement extends HTMLElement {
constructor() {
super(...arguments);
// Events
this.onslotchange = null;
}
/**
* Returns name.
*
* @returns Name.
*/
get name() {
return this.getAttribute('name') || '';
}
/**
* Sets name.
*
* @param name Name.
*/
set name(name) {
this.setAttribute('name', name);
}
/**
* Sets the slot's manually assigned nodes to an ordered set of slottables.
*
* @param _nodes Nodes.
*/
assign(..._nodes) {
// TODO: Do nothing for now. We need to find an example of how it is expected to work before it can be implemented.
}
/**
* Returns assigned nodes.
*
* @param [options] Options.
* @param [options.flatten] A boolean value indicating whether to return the assigned nodes of any available child <slot> elements (true) or not (false). Defaults to false.
* @returns Nodes.
*/
assignedNodes(options) {
const host = this.getRootNode()?.host;
// TODO: Add support for options.flatten. We need to find an example of how it is expected to work before it can be implemented.
if (host) {
const name = this.name;
if (name) {
return this.assignedElements(options);
}
return host[PropertySymbol.childNodes].slice();
}
return [];
}
/**
* Returns assigned elements.
*
* @param [_options] Options.
* @param [_options.flatten] A boolean value indicating whether to return the assigned elements of any available child <slot> elements (true) or not (false). Defaults to false.
* @returns Nodes.
*/
assignedElements(_options) {
const host = this.getRootNode()?.host;
// TODO: Add support for options.flatten. We need to find an example of how it expected to work before it can be implemented.
if (host) {
const name = this.name;
if (name) {
const assignedElements = [];
for (const child of host[PropertySymbol.children]) {
if (child.slot === name) {
assignedElements.push(child);
}
}
return assignedElements;
}
return host[PropertySymbol.children].slice();
}
return [];
}
/**
* @override
*/
[PropertySymbol.cloneNode](deep = false) {
return super[PropertySymbol.cloneNode](deep);
}
}
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