78 lines
2.2 KiB
TypeScript
78 lines
2.2 KiB
TypeScript
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/*
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* Copyright (C) 2021 Aravinth Manivannan <realaravinth@batsense.net>
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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 Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (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 Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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export const ERR_CONTAINER_ID = "err__container";
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export const ERR_MSG_CONTAINER = "err__msg-container"; // class
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export const ERR_CLOSE = "err__close"; // class
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export const DEFAULT_LIFETIME = 5000;
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const err = () => {
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let element;
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return (() => {
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if (element === undefined) {
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element = document.getElementById(ERR_CONTAINER_ID);
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}
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return element;
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})();
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};
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/**
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* create error message
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*
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* @param {string|HTMLElement} message: an error message
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* @param {number} lifetime: duration in milliseconds after which error
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* message will be deleted
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*/
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const createError = (
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message: string | HTMLElement,
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lifetime: number = DEFAULT_LIFETIME,
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): void => {
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const box = document.createElement("div");
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const msg = () => {
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if (typeof message === "string") {
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return document.createTextNode(message);
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} else {
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return message;
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}
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};
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box.className = ERR_MSG_CONTAINER;
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box.appendChild(msg());
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const deleteBtn = document.createElement("button");
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const deleteMsg = document.createTextNode("x");
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deleteBtn.appendChild(deleteMsg);
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deleteBtn.className = ERR_CLOSE;
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box.appendChild(deleteBtn);
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err().appendChild(box);
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const timer = setTimeout(() => box.remove(), lifetime);
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const deleteHandler = (e: Event) => {
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e.preventDefault();
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window.clearTimeout(timer);
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box.remove();
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};
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deleteBtn.addEventListener("click", e => deleteHandler(e));
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};
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export default createError;
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