ueblueprint/js/input/common/Cut.js

import IInput from "../IInput.js"
import ObjectSerializer from "../../serialization/ObjectSerializer.js"

/**
 * @typedef {import("../IInput.js").Options & {
 *     listenOnFocus?: Boolean,
 *     unlistenOnTextEdit?: Boolean,
 * }} Options
 */

export default class Cut extends IInput {

    static #serializer = new ObjectSerializer()

    /** @type {(e: ClipboardEvent) => void} */
    #cutHandler

    /**
     * @param {Element} target
     * @param {Blueprint} blueprint
     * @param {Options} options
     */
    constructor(target, blueprint, options = {}) {
        options.listenOnFocus ??= true
        options.unlistenOnTextEdit ??= true // No nodes copy if inside a text field, just text (default behavior)
        super(target, blueprint, options)
        let self = this
        this.#cutHandler = () => self.cut()
    }

    listenEvents() {
        window.addEventListener("cut", this.#cutHandler)
    }

    unlistenEvents() {
        window.removeEventListener("cut", this.#cutHandler)
    }

    getSerializedText() {
        return this.blueprint
            .getNodes(true)
            .map(node => Cut.#serializer.write(node.entity, false))
            .join("")
    }

    cut() {
        this.blueprint.template.getCopyInputObject().copied()
        this.blueprint.removeGraphElement(...this.blueprint.getNodes(true))
    }
}