Question

在ExtJS 6.x Modern中，如何制作可以聚焦的组件。

我尝试过使用tabIndex：0，focusable：true并阅读https://docs.sencha.com/extjs/6.5.2/modern/Ext.mixin.Focusable.html的所有文档和代码，但无论我尝试什么，我都无法集中注意容器。

另外，您如何检测到容器丢失了焦点？有没有办法听取一些焦点休假事件？

Answer 1

在sencha fiddle：

中添加以下代码

Ext.application({
name : 'Fiddle',

launch : function() {
Ext.create({
xtype: 'panel',
fullscreen: true,
bodyPadding: true, // don't want content to crunch against the borders
title: 'Focusable Elements',
items: [{
    xtype: 'textfield',
    label: 'field A',
    tabIndex: 2,
    listeners: {
        blur: function (field) {
            console.log('field A loses focus!')
        }
    }
}, {
    xtype: 'textfield',
    label: 'field B',
    tabIndex: 1,
    listeners: {
        blur: function (field) {
            console.log('field B loses focus!')
        }
    }
}, {
    xtype: 'panel',
    title: 'Panel 1',
    height: 200,
    html: 'Focus on Me!',
    tabIndex: 4,
    focusable: true,
    layout: {
        type: 'vbox',
        align: 'stretch',
        pack: 'start'
    },
    listeners: {
        blur: function (panel) {
            console.log('Panel 1 Lost Focus!');
        },
        focus: function (panel) {
            console.log('Panel 1 Got Focus!');
        }
    }
}, {
    xtype: 'panel',
    title: 'Panel 2',
    height: 200,
    html: 'Focus on Me!',
    tabIndex: 5,
    focusable: true,
    layout: {
        type: 'vbox',
        align: 'stretch',
        pack: 'start'
    },
    listeners: {
        blur: function (panel) {
            console.log('Panel 2 Lost Focus!');
        },
        focus: function (panel) {
            console.log('Panel 2 Got Focus!');
        }
    }
    },{
    xtype: 'textfield',
    label: 'field D',
    tabIndex: 3,
    listeners: {
        blur: function (field) {
            console.log('field D loses focus!')
        }
    }
}],
});
}
});

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ExtJS 6.x现代组件焦点

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