Add a delayAttach property that will delay attaching a node to the dom

until attributes have been attached

dist/maquette.d.ts

@@ -231,6 +231,14 @@ export interface VNodeProperties {
  * @param children - The children for this node.
  */
  afterUpdate?(element: Element, projectionOptions: ProjectionOptions, vnodeSelector: string, properties: VNodeProperties, children: VNode[]): void;
+ /**
+ * Callback that is executed after this node has been created, but before it is added to the DOM. Child nodes and
+ * properties have not yet been applied.
+ * @param element - The element that was added to the DOM.
+ * @param parentNode - The parent the element will be added to this node
+ * @param beforeNode - The node that the element will be inserted before
+ */
+ beforeAttach?(element: Element, parentNode: Node, beforeNode?: Node): boolean;
  /**
  * When specified, the event handlers will be invoked with 'this' pointing to the value.
  * This is useful when using the prototype/class based implementation of Components.
@@ -310,6 +318,7 @@ export interface VNodeProperties {
  * Note: if you use innerHTML, maquette cannot protect you from XSS vulnerabilities and you must make sure that the innerHTML value is safe.
  */
  readonly innerHTML?: string;
+ readonly delayAttach?: boolean;
  /**
  * Everything that is not explicitly listed (properties and attributes that are either uncommon or custom).
  */