devextreme
Version:
HTML5 JavaScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (cjs/__internal/ui/hierarchical_collection/m_data_converter.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/
*/
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _class = _interopRequireDefault(require("../../../core/class"));
var _extend = require("../../../core/utils/extend");
var _iterator = require("../../../core/utils/iterator");
var _type = require("../../../core/utils/type");
var _ui = _interopRequireDefault(require("../../../ui/widget/ui.errors"));
function _interopRequireDefault(e) {
return e && e.__esModule ? e : {
default: e
}
}
const DataConverter = _class.default.inherit({
ctor() {
this._dataStructure = [];
this._itemsCount = 0;
this._visibleItemsCount = 0
},
_indexByKey: {},
_convertItemsToNodes(items, parentKey) {
const that = this;
(0, _iterator.each)(items, ((_, item) => {
const parentId = (0, _type.isDefined)(parentKey) ? parentKey : that._getParentId(item);
const node = that._convertItemToNode(item, parentId);
that._dataStructure.push(node);
that._checkForDuplicateId(node.internalFields.key);
that._indexByKey[node.internalFields.key] = that._dataStructure.length - 1;
if (that._itemHasChildren(item)) {
that._convertItemsToNodes(that._dataAccessors.getters.items(item), node.internalFields.key)
}
}))
},
_checkForDuplicateId(key) {
if ((0, _type.isDefined)(this._indexByKey[key])) {
throw _ui.default.Error("E1040", key)
}
},
_getParentId(item) {
return "plain" === this._dataType ? this._dataAccessors.getters.parentKey(item) : void 0
},
_itemHasChildren(item) {
if ("plain" === this._dataType) {
return
}
const items = this._dataAccessors.getters.items(item);
return items && items.length
},
_getUniqueKey(item) {
const keyGetter = this._dataAccessors.getters.key;
const itemKey = keyGetter(item);
const isCorrectKey = keyGetter && (itemKey || 0 === itemKey) && (0, _type.isPrimitive)(itemKey);
return isCorrectKey ? itemKey : this.getItemsCount()
},
_convertItemToNode(item, parentKey) {
this._itemsCount++;
false !== item.visible && this._visibleItemsCount++;
const node = {
internalFields: {
disabled: this._dataAccessors.getters.disabled(item, {
defaultValue: false
}),
expanded: this._dataAccessors.getters.expanded(item, {
defaultValue: false
}),
selected: this._dataAccessors.getters.selected(item, {
defaultValue: false
}),
key: this._getUniqueKey(item),
parentKey: (0, _type.isDefined)(parentKey) ? parentKey : this._rootValue,
item: this._makeObjectFromPrimitive(item),
childrenKeys: []
}
};
(0, _extend.extend)(node, item);
delete node.items;
return node
},
setChildrenKeys() {
const that = this;
(0, _iterator.each)(this._dataStructure, ((_, node) => {
if (node.internalFields.parentKey === that._rootValue) {
return
}
const parent = that.getParentNode(node);
parent && parent.internalFields.childrenKeys.push(node.internalFields.key)
}))
},
_makeObjectFromPrimitive(item) {
if ((0, _type.isPrimitive)(item)) {
const key = item;
item = {};
this._dataAccessors.setters.key(item, key)
}
return item
},
_convertToPublicNode(node, parent) {
if (!node) {
return null
}
const publicNode = {
text: this._dataAccessors.getters.display(node),
key: node.internalFields.key,
selected: node.internalFields.selected,
expanded: node.internalFields.expanded,
disabled: node.internalFields.disabled,
parent: parent || null,
itemData: node.internalFields.item,
children: [],
items: []
};
if (publicNode.parent) {
publicNode.parent.children.push(publicNode);
publicNode.parent.items.push(publicNode)
}
return publicNode
},
convertToPublicNodes(data, parent) {
if (!data.length) {
return []
}
const that = this;
const publicNodes = [];
(0, _iterator.each)(data, ((_, node) => {
node = (0, _type.isPrimitive)(node) ? that._getByKey(node) : node;
const publicNode = that._convertToPublicNode(node, parent);
publicNode.children = that.convertToPublicNodes(node.internalFields.childrenKeys, publicNode);
publicNodes.push(publicNode);
node.internalFields.publicNode = publicNode
}));
return publicNodes
},
setDataAccessors(accessors) {
this._dataAccessors = accessors
},
_getByKey(key) {
return this._dataStructure[this.getIndexByKey(key)] || null
},
getParentNode(node) {
return this._getByKey(node.internalFields.parentKey)
},
getByKey(data, key) {
if (null === key || void 0 === key) {
return null
}
let result = null;
const that = this;
return function(data, key) {
(0, _iterator.each)(data, ((_, element) => {
const currentElementKey = element.internalFields && element.internalFields.key || that._dataAccessors.getters.key(element);
if (currentElementKey.toString() === key.toString()) {
result = element;
return false
}
}));
return result
}(data, key)
},
getItemsCount() {
return this._itemsCount
},
getVisibleItemsCount() {
return this._visibleItemsCount
},
updateIndexByKey() {
const that = this;
this._indexByKey = {};
(0, _iterator.each)(this._dataStructure, ((index, node) => {
that._checkForDuplicateId(node.internalFields.key);
that._indexByKey[node.internalFields.key] = index
}))
},
updateChildrenKeys() {
this._indexByKey = {};
this.removeChildrenKeys();
this.updateIndexByKey();
this.setChildrenKeys()
},
removeChildrenKeys() {
this._indexByKey = {};
(0, _iterator.each)(this._dataStructure, ((index, node) => {
node.internalFields.childrenKeys = []
}))
},
getIndexByKey(key) {
return this._indexByKey[key]
},
createPlainStructure(items, rootValue, dataType) {
this._itemsCount = 0;
this._visibleItemsCount = 0;
this._rootValue = rootValue;
this._dataType = dataType;
this._indexByKey = {};
this._convertItemsToNodes(items);
this.setChildrenKeys();
return this._dataStructure
}
});
var _default = exports.default = DataConverter;