devextreme/dist/transpiled/integration/knockout/clean_node_old.js

HTML5 JavaScript Component Suite for Responsive Web Development

"use strict";

var ko = require("knockout"),
    compareVersion = require("../../core/utils/version").compare,
    strategyChanging = require("../../core/element_data").strategyChanging;

var patchCleanData = function patchCleanData(jQuery) {
    var cleanKoData = function cleanKoData(element, andSelf) {
        var cleanNode = function cleanNode() {
            ko.cleanNode(this);
        };

        if (andSelf) {
            element.each(cleanNode);
        } else {
            element.find("*").each(cleanNode);
        }
    };

    var originalEmpty = jQuery.fn.empty;
    jQuery.fn.empty = function () {
        cleanKoData(this, false);
        return originalEmpty.apply(this, arguments);
    };

    var originalRemove = jQuery.fn.remove;
    jQuery.fn.remove = function (selector, keepData) {
        if (!keepData) {
            var subject = this;
            if (selector) {
                subject = subject.filter(selector);
            }
            cleanKoData(subject, true);
        }
        return originalRemove.call(this, selector, keepData);
    };

    var originalHtml = jQuery.fn.html;
    jQuery.fn.html = function (value) {
        if (typeof value === "string") {
            cleanKoData(this, false);
        }
        return originalHtml.apply(this, arguments);
    };

    var originalReplaceWith = jQuery.fn.replaceWith;
    jQuery.fn.replaceWith = function () {
        var result = originalReplaceWith.apply(this, arguments);

        if (!this.parent().length) {
            cleanKoData(this, true);
        }

        return result;
    };
};

strategyChanging.add(function (strategy) {
    var isJQuery = !!strategy.fn;

    if (isJQuery && compareVersion(strategy.fn.jquery, [2, 0]) < 0) {
        patchCleanData(strategy);
    }
});