docx-js/src/file/vertical-align/vertical-align.ts

import { XmlAttributeComponent, XmlComponent } from "@file/xml-components";

// <xsd:complexType name="CT_VerticalJc">
//     <xsd:attribute name="val" type="ST_VerticalJc" use="required"/>
// </xsd:complexType>

// <xsd:simpleType name="ST_VerticalJc">
// <xsd:restriction base="xsd:string">
//   <xsd:enumeration value="top"/>
//   <xsd:enumeration value="center"/>
//   <xsd:enumeration value="bottom"/>
// </xsd:restriction>
// </xsd:simpleType>
export const VerticalAlign = {
    BOTTOM: "bottom",
    CENTER: "center",
    TOP: "top",
} as const;

export class VerticalAlignAttributes extends XmlAttributeComponent<{
    readonly verticalAlign?: (typeof VerticalAlign)[keyof typeof VerticalAlign];
}> {
    protected readonly xmlKeys = {
        verticalAlign: "w:val",
    };
}

export class VerticalAlignElement extends XmlComponent {
    public constructor(value: (typeof VerticalAlign)[keyof typeof VerticalAlign]) {
        super("w:vAlign");
        this.root.push(new VerticalAlignAttributes({ verticalAlign: value }));
    }
}