75 lines
2.0 KiB
JavaScript
75 lines
2.0 KiB
JavaScript
/**
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* This file is part of Radicale Server - Calendar Server
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* Copyright © 2026-2026 Max Berger <max@berger.name>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* ErrorHandler manages error messages for a HTMLElement.
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*/
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export class ErrorHandler {
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/**
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* @param {HTMLElement} element
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*/
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constructor(element) {
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/** @type {HTMLElement} */ this._element = element;
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/** @type {string} */ this._lastHTML = "anything_but_blank";
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this.clearError();
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}
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/**
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* Sets an error message for a given key.
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* @param {string} errorMessage
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*/
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setError(errorMessage) {
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this._update([errorMessage]);
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}
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/**
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* Sets multiple error messages.
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* @param {string[]} errorMessages
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*/
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setErrors(errorMessages) {
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this._update(errorMessages);
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}
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clearError() {
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this._update([]);
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}
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/**
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* Updates the element visibility and text content.
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* @param {string[]} errorMessages
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* @private
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*/
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_update(errorMessages) {
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let html = "";
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if (errorMessages.length > 0) {
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html = errorMessages.join("<br>");
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}
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if (html !== this._lastHTML) {
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this._element.innerHTML = html;
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if (html) {
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this._element.classList.remove("hidden");
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} else {
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this._element.classList.add("hidden");
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}
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this._lastHTML = html;
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}
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}
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}
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