devextreme
Version:
HTML5 JavaScript Component Suite for Responsive Web Development
57 lines (56 loc) • 1.87 kB
JavaScript
/**
* DevExtreme (esm/core/utils/public_component.js)
* Version: 21.1.4
* Build date: Mon Jun 21 2021
*
* Copyright (c) 2012 - 2021 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
import {
data as elementData
} from "../../core/element_data";
import eventsEngine from "../../events/core/events_engine";
import WeakMap from "../polyfills/weak_map";
import {
isDefined
} from "./type";
import {
removeEvent
} from "../remove_event";
var COMPONENT_NAMES_DATA_KEY = "dxComponents";
var ANONYMOUS_COMPONENT_DATA_KEY = "dxPrivateComponent";
var componentNames = new WeakMap;
var nextAnonymousComponent = 0;
var getName = function(componentClass, newName) {
if (isDefined(newName)) {
componentNames.set(componentClass, newName);
return
}
if (!componentNames.has(componentClass)) {
var generatedName = ANONYMOUS_COMPONENT_DATA_KEY + nextAnonymousComponent++;
componentNames.set(componentClass, generatedName);
return generatedName
}
return componentNames.get(componentClass)
};
export function attachInstanceToElement($element, componentInstance, disposeFn) {
var data = elementData($element.get(0));
var name = getName(componentInstance.constructor);
data[name] = componentInstance;
if (disposeFn) {
eventsEngine.one($element, removeEvent, (function() {
disposeFn.call(componentInstance)
}))
}
if (!data[COMPONENT_NAMES_DATA_KEY]) {
data[COMPONENT_NAMES_DATA_KEY] = []
}
data[COMPONENT_NAMES_DATA_KEY].push(name)
}
export function getInstanceByElement($element, componentClass) {
var name = getName(componentClass);
return elementData($element.get(0), name)
}
export {
getName as name
};