Ext.js 中 25种类型的Ext.panel.Tool

var panel1 = Ext.create('Ext.panel.Panel', {
    width:500,
    renderTo: 'ext4-panel-tools',
    html: html,
    title: 'Tools - Header',
    tools: [{
        type: 'close',
        handler: function(){} //some logic inside handler
    },{
        type: 'collapse',
        handler: function(){} //some logic inside handler
    },{
        type: 'down',
        handler: function(){} //some logic inside handler
    },{
        type: 'expand',
        handler: function(){} //some logic inside handler
    },{
        type: 'gear',
        handler: function(){} //some logic inside handler
    },{
        type: 'help',
        handler: function(){} //some logic inside handler
    },{
        type: 'left',
        handler: function(){} //some logic inside handler
    },{
        type: 'maximize',
        handler: function(){} //some logic inside handler
    },{
        type: 'minimize',
        handler: function(){} //some logic inside handler
    },{
        type: 'minus',
        handler: function(){} //some logic inside handler
    },{
        type: 'next',
        handler: function(){} //some logic inside handler
    },{
        type: 'pin',
        handler: function(){} //some logic inside handler
    },{
        type: 'plus',
        handler: function(){} //some logic inside handler
    },{
        type: 'prev',
        handler: function(){} //some logic inside handler
    },{
        type: 'print',
        handler: function(){} //some logic inside handler
    },{
        type: 'refresh',
        itemId: "refresh",
        hidden: true,
        handler: function(){} //some logic inside handler
    },{
        type: 'restore',
        handler: function(){} //some logic inside handler
    },{
        type: 'right',
        handler: function(){} //some logic inside handler
    },{
        type: 'save',
        handler: function(){} //some logic inside handler
    },{
        type: 'toggle',
        handler: function(){} //some logic inside handler
    },{
        type: 'unpin',
        handler: function(){} //some logic inside handler
    },{
        type: 'up',    
        handler: function(){} //some logic inside handler
    },{
        type: "search",
        handler: function(event, target, owner, tool){
                    // do search
                    owner.child('#refresh').show();
        }
    }]
});