/** * A Traversable mixin. * @private */Ext.define('Ext.mixin.Traversable', { extend: 'Ext.Mixin', mixinConfig: { id: 'traversable' }, setParent: function(parent) { this.parent = parent; return this; }, /** * Returns `true` if this component has a parent. * @return {Boolean} `true` if this component has a parent. */ hasParent: function() { return Boolean(this.parent || this.$initParent); }, /** * Returns the parent of this component, if it has one. * @return {Ext.Component} The parent of this component. */ getParent: function() { return this.parent || this.$initParent; }, getAncestors: function() { var ancestors = [], parent = this.getParent(); while (parent) { ancestors.push(parent); parent = parent.getParent(); } return ancestors; }, getAncestorIds: function() { var ancestorIds = [], parent = this.getParent(); while (parent) { ancestorIds.push(parent.getId()); parent = parent.getParent(); } return ancestorIds; }});