devextreme
Version:
HTML5 JavaScript Component Suite for Responsive Web Development
45 lines (44 loc) • 1.98 kB
JavaScript
/**
* DevExtreme (esm/__internal/grids/tree_list/m_virtual_scrolling.js)
* Version: 23.2.6
* Build date: Wed May 01 2024
*
* Copyright (c) 2012 - 2024 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
import _extends from "@babel/runtime/helpers/esm/extends";
import {
extend
} from "../../../core/utils/extend";
import {
data as virtualScrollingDataControllerExtender,
dataSourceAdapterExtender as virtualScrollingDataSourceAdapterExtender,
virtualScrollingModule
} from "../../grids/grid_core/virtual_scrolling/m_virtual_scrolling";
import dataSourceAdapterProvider from "./data_source_adapter/m_data_source_adapter";
import gridCore from "./m_core";
var oldDefaultOptions = virtualScrollingModule.defaultOptions;
virtualScrollingModule.extenders.controllers.data = Base => class extends(virtualScrollingDataControllerExtender(Base)) {
_loadOnOptionChange() {
var _a;
var virtualScrollController = null === (_a = this._dataSource) || void 0 === _a ? void 0 : _a._virtualScrollController;
null === virtualScrollController || void 0 === virtualScrollController ? void 0 : virtualScrollController.reset();
super._loadOnOptionChange()
}
};
var dataSourceAdapterExtender = Base => class extends(virtualScrollingDataSourceAdapterExtender(Base)) {
changeRowExpand() {
return super.changeRowExpand.apply(this, arguments).done(() => {
var viewportItemIndex = this.getViewportItemIndex();
viewportItemIndex >= 0 && this.setViewportItemIndex(viewportItemIndex)
})
}
};
gridCore.registerModule("virtualScrolling", _extends(_extends({}, virtualScrollingModule), {
defaultOptions: () => extend(true, oldDefaultOptions(), {
scrolling: {
mode: "virtual"
}
})
}));
dataSourceAdapterProvider.extend(dataSourceAdapterExtender);