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// Copyright (c) 2020 Teddy Wing
//
// This file is part of Immersive.
//
// Immersive is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Immersive is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Immersive. If not, see <https://www.gnu.org/licenses/>.
import logger from './logger';
// Wait for the element corresponding to `selector` to be added to the page,
// checking every second until it appears.
export default function wait_element (selector: string): Promise<Element> {
return new Promise(function(resolve) {
const interval = setInterval(
function() {
const element = document.querySelector(selector);
if (element) {
logger.debug('wait_element():', 'found', element);
clearInterval(interval);
resolve(element);
}
},
1000
);
});
}
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