devextreme
Version:
HTML5 JavaScript Component Suite for Responsive Web Development
57 lines (54 loc) • 2.46 kB
JavaScript
/**
* DevExtreme (cjs/__internal/grids/tree_list/m_virtual_scrolling.js)
* Version: 24.2.6
* Build date: Mon Mar 17 2025
*
* Copyright (c) 2012 - 2025 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
;
var _extend = require("../../../core/utils/extend");
var _m_virtual_scrolling = require("../../grids/grid_core/virtual_scrolling/m_virtual_scrolling");
var _m_data_source_adapter = _interopRequireDefault(require("./data_source_adapter/m_data_source_adapter"));
var _m_core = _interopRequireDefault(require("./m_core"));
function _interopRequireDefault(e) {
return e && e.__esModule ? e : {
default: e
}
}
function _extends() {
return _extends = Object.assign ? Object.assign.bind() : function(n) {
for (var e = 1; e < arguments.length; e++) {
var t = arguments[e];
for (var r in t) {
({}).hasOwnProperty.call(t, r) && (n[r] = t[r])
}
}
return n
}, _extends.apply(null, arguments)
}
const oldDefaultOptions = _m_virtual_scrolling.virtualScrollingModule.defaultOptions;
_m_virtual_scrolling.virtualScrollingModule.extenders.controllers.data = Base => class extends((0, _m_virtual_scrolling.data)(Base)) {
_loadOnOptionChange() {
var _this$_dataSource;
const virtualScrollController = null === (_this$_dataSource = this._dataSource) || void 0 === _this$_dataSource ? void 0 : _this$_dataSource._virtualScrollController;
null === virtualScrollController || void 0 === virtualScrollController || virtualScrollController.reset();
super._loadOnOptionChange()
}
};
const dataSourceAdapterExtender = Base => class extends((0, _m_virtual_scrolling.dataSourceAdapterExtender)(Base)) {
changeRowExpand() {
return super.changeRowExpand.apply(this, arguments).done((() => {
const viewportItemIndex = this.getViewportItemIndex();
viewportItemIndex >= 0 && this.setViewportItemIndex(viewportItemIndex)
}))
}
};
_m_core.default.registerModule("virtualScrolling", _extends({}, _m_virtual_scrolling.virtualScrollingModule, {
defaultOptions: () => (0, _extend.extend)(true, oldDefaultOptions(), {
scrolling: {
mode: "virtual"
}
})
}));
_m_data_source_adapter.default.extend(dataSourceAdapterExtender);