ExtJS禁用树列表悬停

如何禁用ExtJS树列表组件（在micromode中）的悬停事件，以便仅通过单击/触摸而不是悬停/mouseover/mouseenter打开浮动程序

---

（使用ExtJS 6.2 Classic）

覆盖元素配置就成功了

Ext.define('Admin.view.main.TreeList', {
extend: 'Ext.list.Tree',
requires: [
],
xtype: 'pdmtreelist',
ui: 'navigation',
micro:true,
expanderFirst: false,
expanderOnly: true,

element: {
    reference: 'element',
    listeners: {
        click: 'onClick',
        mouseenter: 'onMouseEnter',
        // mouseenter: Ext.emptyFn,
        // mouseover: Ext.emptyFn,
        mouseleave: 'onMouseLeave',
    },
    children: [{
        reference: 'toolsElement',
        listeners: {
            mouseover: Ext.emptyFn
            //mouseover: 'onToolStripMouseOver'
        }
    }]
}



});

---

这就覆盖了元素配置

Ext.define('Admin.view.main.TreeList', {
extend: 'Ext.list.Tree',
requires: [
],
xtype: 'pdmtreelist',
ui: 'navigation',
micro:true,
expanderFirst: false,
expanderOnly: true,

element: {
    reference: 'element',
    listeners: {
        click: 'onClick',
        mouseenter: 'onMouseEnter',
        // mouseenter: Ext.emptyFn,
        // mouseover: Ext.emptyFn,
        mouseleave: 'onMouseLeave',
    },
    children: [{
        reference: 'toolsElement',
        listeners: {
            mouseover: Ext.emptyFn
            //mouseover: 'onToolStripMouseOver'
        }
    }]
}



});