react-native-navigation-drilldown/dist/updateSelection.js

Drilldown screens to use with react-navigation

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var differenceBy = require("lodash/differenceBy");
var includesAll_1 = require("./includesAll");
var isChildOf_1 = require("./isChildOf");
var updateSelection = function (options, item, selected, multi) {
    if (multi) {
        return updateMultiSelection(options, item, selected);
    }
    return item;
};
var updateMultiSelection = function (options, item, selected) {
    if (!selected) {
        return [item];
    }
    var selectedArray = Array.isArray(selected) ? selected : [selected];
    var xored = [];
    var removed = false;
    for (var _i = 0, selectedArray_1 = selectedArray; _i < selectedArray_1.length; _i++) {
        var selectedItem = selectedArray_1[_i];
        if (selectedItem.id === item.id) {
            removed = true;
        }
        else if (!isChildOf_1.default(item, selectedItem)) {
            xored.push(selectedItem);
        }
    }
    if (!removed) {
        xored.push(item);
    }
    var result = collapseSubtrees(options, xored);
    return result.length ? result : null;
};
var collapseSubtrees = function (options, selected) {
    var result = selected;
    if (options.children) {
        options.children.forEach(function (subtree) {
            result = collapseSubtrees(subtree, result);
        });
        if (includesAll_1.default(options, result)) {
            result = differenceBy(result, options.children, 'id');
            result.push(options);
        }
    }
    return result;
};
exports.default = updateSelection;
//# sourceMappingURL=updateSelection.js.map