如何在Gutenberg的Inspector控件中添加条件控件字段？

registerBlockType('my-plugin/my-block', {
    // ...

    edit: function(props) {
        var attributes = props.attributes;
        var setAttributes = props.setAttributes;

        function onChangeCondition(value) {
            setAttributes({ condition: value });
        }

        return (
            <div>
                <InspectorControls>
                    <PanelBody title="条件设置">
                        <PanelRow>
                            <TextControl
                                label="条件字段"
                                value={attributes.condition}
                                onChange={onChangeCondition}
                            />
                        </PanelRow>
                    </PanelBody>
                </InspectorControls>
                <div>编辑器内容</div>
            </div>
        );
    },

    // ...
});