File Content: locking-list.js (function (gflocking, $) { var objectType; $(document).ready(function () { objectType = gflockingVars.objectType; gflocking.init(); }); gflocking.init = function () { initHeartbeat(); }; function initHeartbeat() { var checkLocksKey = 'gform-check-locked-objects-' + objectType; wp.heartbeat.interval( 30 ); $(document).on('heartbeat-tick.' + checkLocksKey,function (e, data) { var locked = data[checkLocksKey] || {}; $('.gf-locking').each(function (i, el) { var id , $row = $(el), lock_data, avatar; id = $row.data("id"); if (locked.hasOwnProperty(id)) { if (!$row.hasClass('wp-locked')) { lock_data = locked[id]; $row.find('.locked-text').text(lock_data.text); $row.find('.check-column input[type=checkbox]').prop('checked', false); if (lock_data.avatar_src) { avatar = $('<img class="avatar avatar-18 photo" width="18" height="18" />').attr('src', lock_data.avatar_src.replace(/&amp;/g, '&')); $row.find('.locked-avatar').empty().append(avatar); } $row.addClass('wp-locked'); } } else if ($row.hasClass('wp-locked')) { $row.removeClass('wp-locked').delay(1000).find('.locked-info span').empty(); } }); }).on('heartbeat-send.' + checkLocksKey, function (e, data) { var check = []; $('.gf-locking').each(function (i, row) { check.push($(row).data("id")); }); if (check.length) data[checkLocksKey] = check; }); } }(window.gflocking = window.gflocking || {}, jQuery)); Submit