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devextreme

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HTML5 JavaScript Component Suite for Responsive Web Development

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/** * DevExtreme (core/utils/public_component.js) * Version: 18.1.3 * Build date: Tue May 15 2018 * * Copyright (c) 2012 - 2018 Developer Express Inc. ALL RIGHTS RESERVED * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/ */ "use strict"; var dataUtils = require("../../core/element_data"), eventsEngine = require("../../events/core/events_engine"), WeakMap = require("../polyfills/weak_map"), isDefined = require("./type").isDefined, removeEvent = require("../remove_event"); var COMPONENT_NAMES_DATA_KEY = "dxComponents", ANONYMOUS_COMPONENT_DATA_KEY = "dxPrivateComponent"; var componentNames = new WeakMap, nextAnonymousComponent = 0; var getName = exports.name = 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) }; exports.attachInstanceToElement = function($element, componentInstance, disposeFn) { var data = dataUtils.data($element.get(0)), name = getName(componentInstance.constructor); data[name] = componentInstance; if (disposeFn) { eventsEngine.one($element, removeEvent, function() { disposeFn.call(componentInstance) }) } if (!data[COMPONENT_NAMES_DATA_KEY]) { data[COMPONENT_NAMES_DATA_KEY] = [] } data[COMPONENT_NAMES_DATA_KEY].push(name) }; exports.getInstanceByElement = function($element, componentClass) { var name = getName(componentClass); return dataUtils.data($element.get(0), name) };