devextreme/esm/__internal/grids/tree_list/m_state_storing.js

JavaScript/TypeScript Component Suite for Responsive Web Development

/**
 * DevExtreme (esm/__internal/grids/tree_list/m_state_storing.js)
 * Version: 25.2.5
 * Build date: Fri Feb 20 2026
 *
 * Copyright (c) 2012 - 2026 Developer Express Inc. ALL RIGHTS RESERVED
 * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
 */
import {
    stateStoringModule
} from "../../grids/grid_core/state_storing/m_state_storing";
import treeListCore from "./m_core";
const stateStoring = Base => class extends(stateStoringModule.extenders.controllers.stateStoring(Base)) {
    applyState(state) {
        super.applyState(state);
        this.option("expandedRowKeys", state.expandedRowKeys ? state.expandedRowKeys.slice() : [])
    }
};
const data = Base => class extends(stateStoringModule.extenders.controllers.data(Base)) {
    getUserState() {
        const state = super.getUserState();
        if (!this.option("autoExpandAll")) {
            state.expandedRowKeys = this.option("expandedRowKeys")
        }
        return state
    }
};
treeListCore.registerModule("stateStoring", Object.assign({}, stateStoringModule, {
    extenders: Object.assign({}, stateStoringModule.extenders, {
        controllers: Object.assign({}, stateStoringModule.extenders.controllers, {
            stateStoring: stateStoring,
            data: data
        })
    })
}));