devextreme/cjs/__internal/ui/collection/collection_widget.async.js

JavaScript/TypeScript Component Suite for Responsive Web Development

/**
 * DevExtreme (cjs/__internal/ui/collection/collection_widget.async.js)
 * Version: 25.2.7
 * Build date: Tue May 05 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.default = void 0;
var _guid = _interopRequireDefault(require("../../../core/guid"));
var _deferred = require("../../../core/utils/deferred");
var _collection_widget = _interopRequireDefault(require("../../ui/collection/collection_widget.edit"));

function _interopRequireDefault(e) {
    return e && e.__esModule ? e : {
        default: e
    }
}
class CollectionWidgetAsync extends _collection_widget.default {
    _initMarkup() {
        this._asyncTemplateItemsMap = {};
        super._initMarkup()
    }
    _render() {
        super._render();
        this._planPostRenderActions()
    }
    _renderItemContent(args) {
        const renderContentDeferred = (0, _deferred.Deferred)();
        const itemDeferred = (0, _deferred.Deferred)();
        const uniqueKey = `dx${new _guid.default}`;
        this._asyncTemplateItemsMap[uniqueKey] = itemDeferred;
        const $itemContent = super._renderItemContent(Object.assign({}, args, {
            uniqueKey: uniqueKey
        }));
        itemDeferred.done(() => {
            renderContentDeferred.resolve($itemContent)
        });
        return renderContentDeferred.promise()
    }
    _onItemTemplateRendered(itemTemplate, renderArgs) {
        return () => {
            const {
                uniqueKey: uniqueKey
            } = renderArgs;
            if (uniqueKey) {
                var _this$_asyncTemplateI;
                null === (_this$_asyncTemplateI = this._asyncTemplateItemsMap[uniqueKey]) || void 0 === _this$_asyncTemplateI || _this$_asyncTemplateI.resolve()
            }
        }
    }
    _postProcessRenderItems() {}
    _planPostRenderActions() {
        for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
            args[_key] = arguments[_key]
        }
        const d = (0, _deferred.Deferred)();
        const asyncTemplateItems = Object.values(this._asyncTemplateItemsMap);
        _deferred.when.apply(this, asyncTemplateItems).done(() => {
            this._postProcessRenderItems(...args);
            d.resolve().done(() => {
                this._asyncTemplateItemsMap = {}
            })
        });
        return d.promise()
    }
    _clean() {
        super._clean();
        const asyncTemplateItems = Object.values(this._asyncTemplateItemsMap);
        asyncTemplateItems.forEach(item => {
            item.reject()
        });
        this._asyncTemplateItemsMap = {}
    }
}
var _default = exports.default = CollectionWidgetAsync;