Plugin loading error reading jquery-ui property about jquery-ui-contextmenu HOT 3 CLOSED

/**
 * This var will indicate if jquery ui is already loaded or not
 */
var jqueryUiIsLoaded;

/**
 * Add context menu to document
 */
function addContextMenuToDocument() {
    jqueryUiIsLoaded = setTimeout(function(){
        // check if jquery ui was loaded
        if ($.ui) {
            // bind contextmenu event to document
            addContextMenu();

            // stop this check to continue executing
            stopChecking();
        }
    }, 300);
}

/**
 * Stop to look for jquery ui
 */
function stopChecking() {
    clearTimeout(jqueryUiIsLoaded);
}

/**
 * Bind contextmenu event to document
 */
function addContextMenu() {
    // apply jquery ui context menu to any element on the page
    $(document).contextmenu({
        delegate: "body",
        autoFocus: true,
        preventContextMenuForPopup: true,
        preventSelect: true,
        taphold: true,
        menu: [{
            title: "Cut",
            cmd: "cut",
            uiIcon: "ui-icon-scissors",
        }, {
            title: "Copy",
            cmd: "copy",
            uiIcon: "ui-icon-copy",
        }, {
            title: "Paste",
            cmd: "paste",
            uiIcon: "ui-icon-clipboard",
        }]
    });
}

/**
 * Jquery page ready listener function
 */
$(function() {
    addContextMenuToDocument();
});