devextreme/cjs/__internal/scheduler/loading.js

JavaScript/TypeScript Component Suite for Responsive Web Development

/**
 * DevExtreme (cjs/__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/
 */
"use strict";
Object.defineProperty(exports, "__esModule", {
    value: true
});
exports.hide = hide;
exports.show = show;
var _renderer = _interopRequireDefault(require("../../core/renderer"));
var _view_port = require("../../core/utils/view_port");
var _load_panel = _interopRequireDefault(require("../../ui/load_panel"));

function _interopRequireDefault(e) {
    return e && e.__esModule ? e : {
        default: e
    }
}
let loading = null;
const createLoadPanel = options => {
    const $container = (0, _renderer.default)("<div>").appendTo((null === options || void 0 === options ? void 0 : options.container) ?? (0, _view_port.value)());
    return new _load_panel.default($container.get(0), options)
};
const removeLoadPanel = () => {
    if (!loading) {
        return
    }
    loading.$element().remove();
    loading = null
};

function show(options) {
    removeLoadPanel();
    loading = createLoadPanel(options);
    return loading.show()
}

function hide() {
    if (!loading) {
        return Promise.resolve(void 0)
    }
    const instance = loading;
    return instance.hide().then(result => {
        if (loading === instance) {
            removeLoadPanel()
        }
        return result
    })
}