add schema comments and update file/document; unify VerticalAlign type

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

@@ -0,0 +1,34 @@
+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="both"/>
+//   <xsd:enumeration value="bottom"/>
+// </xsd:restriction>
+// </xsd:simpleType>
+export enum VerticalAlign {
+    BOTH = "both",
+    BOTTOM = "bottom",
+    CENTER = "center",
+    TOP = "top",
+}
+export class VerticalAlignAttributes extends XmlAttributeComponent<{
+    readonly verticalAlign?: VerticalAlign;
+}> {
+    protected readonly xmlKeys = {
+        verticalAlign: "w:val",
+    };
+}
+
+export class VerticalAlignElement extends XmlComponent {
+    constructor(value: VerticalAlign) {
+        super("w:vAlign");
+        this.root.push(new VerticalAlignAttributes({ verticalAlign: value }));
+    }
+}