devextreme/esm/__internal/scheduler/loading.js

JavaScript/TypeScript Component Suite for Responsive Web Development

/**
 * DevExtreme (esm/__internal/scheduler/loading.js)
 * Version: 26.1.3
 * Build date: Wed Jun 10 2026
 *
 * Copyright (c) 2012 - 2026 Developer Express Inc. ALL RIGHTS RESERVED
 * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
 */
import $ from "../../core/renderer";
import {
    value as viewPort
} from "../../core/utils/view_port";
import LoadPanel from "../../ui/load_panel";
let loading = null;
const createLoadPanel = options => {
    const $container = $("<div>").appendTo((null === options || void 0 === options ? void 0 : options.container) ?? viewPort());
    return new LoadPanel($container.get(0), options)
};
const removeLoadPanel = () => {
    if (!loading) {
        return
    }
    loading.$element().remove();
    loading = null
};
export function show(options) {
    removeLoadPanel();
    loading = createLoadPanel(options);
    return loading.show()
}
export function hide() {
    if (!loading) {
        return Promise.resolve(void 0)
    }
    const instance = loading;
    return instance.hide().then(result => {
        if (loading === instance) {
            removeLoadPanel()
        }
        return result
    })
}