import {onChildEvent} from "../services/dom"; import {uniqueId} from "../services/util"; import {Component} from "./component"; /** * AddRemoveRows * Allows easy row add/remove controls onto a table. * Needs a model row to use when adding a new row. */ export class AddRemoveRows extends Component { setup() { this.modelRow = this.$refs.model; this.addButton = this.$refs.add; this.removeSelector = this.$opts.removeSelector; this.rowSelector = this.$opts.rowSelector; this.setupListeners(); } setupListeners() { this.addButton.addEventListener('click', this.add.bind(this)); onChildEvent(this.$el, this.removeSelector, 'click', (e) => { const row = e.target.closest(this.rowSelector); row.remove(); }); } // For external use add() { const clone = this.modelRow.cloneNode(true); clone.classList.remove('hidden'); this.setClonedInputNames(clone); this.modelRow.parentNode.insertBefore(clone, this.modelRow); window.$components.init(clone); } /** * Update the HTML names of a clone to be unique if required. * Names can use placeholder values. For exmaple, a model row * may have name="tags[randrowid][name]". * These are the available placeholder values: * - randrowid - An random string ID, applied the same across the row. * @param {HTMLElement} clone */ setClonedInputNames(clone) { const rowId = uniqueId(); const randRowIdElems = clone.querySelectorAll(`[name*="randrowid"]`); for (const elem of randRowIdElems) { elem.name = elem.name.split('randrowid').join(rowId); } } }