/** * @class Ext.view.TagKeyNav * @private */Ext.define('Ext.view.TagKeyNav', { extend: 'Ext.view.BoundListKeyNav', alias: 'view.navigation.tagfield', onKeySpace: function(e) { var me = this, field = me.view.pickerField; if (field.isExpanded && field.inputEl.dom.value === '') { field.preventKeyUpEvent = true; me.navigateOnSpace = true; me.callParent([e]); e.stopEvent(); return false; } // Allow propagating to the field return true; }});