@awcrotwell/motion/dist/documentLifecycle.js

Motion allows you to build reactive, real-time frontend UI components in your Amber application using pure Crystal that are reusable, testable & encapsulated. For brevity, we will call them MotionComponents.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.beforeDocumentUnload = exports.documentLoaded = void 0;
function once(target, event, callback) {
    target.addEventListener(event, function handler(event) {
        target.removeEventListener(event, handler);
        callback(event);
    });
}
exports.documentLoaded = new Promise((resolve) => {
    if (/^loaded|^i|^c/i.test(document.readyState)) {
        resolve();
    }
    else {
        once(document, 'DOMContentLoaded', resolve);
    }
});
exports.beforeDocumentUnload = new Promise((resolve) => {
    window.addEventListener('beforeunload', () => {
        once(window, 'beforeunload', ({ defaultPrevented }) => {
            if (!defaultPrevented) {
                resolve();
            }
        });
    }, true);
});