Zabbix

/*

** Zabbix

** Copyright (C) 2001-2022 Zabbix SIA

**

** This program is free software; you can redistribute it and/or modify

** it under the terms of the GNU General Public License as published by

** the Free Software Foundation; either version 2 of the License, or

** (at your option) any later version.

**

** This program is distributed in the hope that it will be useful,

** but WITHOUT ANY WARRANTY; without even the implied warranty of

** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

** GNU General Public License for more details.

**

** You should have received a copy of the GNU General Public License

** along with this program; if not, write to the Free Software

** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

**/

​

​

const KEY_ARROW_DOWN = 40;

const KEY_ARROW_LEFT = 37;

const KEY_ARROW_RIGHT = 39;

const KEY_ARROW_UP = 38;

const KEY_BACKSPACE = 8;

const KEY_DELETE = 46;

const KEY_ENTER = 13;

const KEY_ESCAPE = 27;

const KEY_TAB = 9;

const KEY_PAGE_UP = 33;

const KEY_PAGE_DOWN = 34;

const KEY_END = 35;

const KEY_HOME = 36;

const KEY_SPACE = 32;

​

/**

 * jQuery based publish/subscribe handler.

 *

 * - $.subscribe(event_name, callback)

 * - $.unsubscribe(event_name, callback)

 * - $.publish(event_name, data_object)

 *

 */

(function($) {

    var pubsub = $({});

​

    $.subscribe = function() {

        pubsub.on.apply(pubsub, arguments);

    };

​

    $.unsubscribe = function() {

        pubsub.off.apply(pubsub, arguments);

    };

​

    $.publish = function() {

        pubsub.trigger.apply(pubsub, arguments);

    };

}(jQuery));

​

var overlays_stack = new OverlayCollection();

​

function isset(key, obj) {

    return (is_null(key) || is_null(obj)) ? false : (typeof(obj[key]) != 'undefined');