lazy-widgets/dist/widgets/SingleParent.js

Typescript retained mode GUI for the HTML canvas API

import { Parent } from './Parent.js';
/**
 * A specialised version of the {@link Parent} class for parents with a single
 * mandatory child.
 *
 * @category Widget
 */
export class SingleParent extends Parent {
    /**
     * @param child - The mandatory single child of this widget. Cannot be changed later.
     */
    constructor(child, properties) {
        super(properties);
        this.child = child;
        child.inheritedTheme = this.inheritedTheme;
    }
    [Symbol.iterator]() {
        const child = this.child;
        let first = true;
        return {
            next() {
                if (first) {
                    first = false;
                    return { value: child, done: false };
                }
                else {
                    return { value: undefined, done: true };
                }
            }
        };
    }
    get childCount() {
        return 1;
    }
}
//# sourceMappingURL=SingleParent.js.map