devextreme/esm/__internal/viz/tree_map/states.js

JavaScript/TypeScript Component Suite for Responsive Web Development

/**
 * DevExtreme (esm/__internal/viz/tree_map/states.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 {
    noop
} from "../../../core/utils/common";
import {
    extend as _extend
} from "../../../core/utils/extend";
import Node from "../../viz/tree_map/node";
import TreeMapBase from "../../viz/tree_map/tree_map.base";
const proto = TreeMapBase.prototype;
const nodeProto = Node.prototype;
const handlers = proto._handlers;
const _calculateState = handlers.calculateState;
const {
    _buildState: _buildState
} = nodeProto;
handlers.calculateState = function(options) {
    const states = {
        0: _calculateState(options)
    };
    handlers.calculateAdditionalStates(states, options);
    return states
};
handlers.calculateAdditionalStates = noop;
nodeProto.code = 0;
nodeProto.statesMap = {
    0: 0
};
nodeProto.additionalStates = [];
nodeProto._buildState = function(state, extra) {
    const states = {
        0: _buildState(state[0], extra)
    };
    if (this.additionalStates.length) {
        buildAdditionalStates(states, states[0], state, this.additionalStates)
    }
    return states
};
nodeProto._getState = function() {
    return this.state[this.statesMap[this.code]]
};
nodeProto.setState = function(code, state) {
    if (state) {
        this.code |= code
    } else {
        this.code &= ~code
    }
    this.ctx.change(["TILES"])
};

function buildAdditionalStates(states, base, source, list) {
    let i;
    const ii = list.length;
    for (i = 0; i < ii; ++i) {
        states[list[i]] = _extend({}, base, source[list[i]])
    }
}