Part two of turning the rabbit hole inside out

core/modules/treenodes/node.js

@@ -0,0 +1,80 @@
+/*\
+title: $:/core/modules/treenodes/node.js
+type: application/javascript
+module-type: treenode
+
+Base class for all other tree nodes
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+/*
+The virtual base class for all types of renderer nodes. It keeps track of child nodes but otherwise contains no functionality
+*/
+var Node = function() {
+	if(this instanceof Node) {
+	} else {
+		return new Node();
+	}
+};
+
+/*
+Makes a copy of a node, or returns the node itself if it doesn't need cloning because it doesn't have any state
+*/
+Node.prototype.clone = function() {
+	// By default we don't actually clone nodes, we just re-use them (we do clone macros and elements)
+	return this;
+};
+
+/*
+Fire an event at a node which is also broadcast to any child nodes
+*/
+Node.prototype.broadcastEvent = function(event) {
+	return true; // true means that the event wasn't handled by this node
+};
+
+/*
+Execute a node and derive its child nodes
+	parents: array of titles of each transcluded parent tiddler (used for detecting recursion)
+	tiddlerTitle: title of the context tiddler within which this node is being executed
+*/
+Node.prototype.execute = function(parents,tiddlerTitle) {
+};
+
+/*
+Render a node and its children to a particular MIME type
+	type: Content type to which the node should be rendered
+*/
+Node.prototype.render = function(type) {
+};
+
+/*
+Render a node and its children into the DOM
+	parentDomNode: node that should become the parent of the rendered node
+	insertBefore: optional node that the node should be inserted before
+*/
+Node.prototype.renderInDom = function(parentDomNode,insertBefore) {
+};
+
+/*
+Re-execute a node if it is impacted by a set of tiddler changes
+	changes: hashmap of tiddler changes in the format used by $tw.Wiki
+*/
+Node.prototype.refresh = function(changes) {	
+};
+
+/*
+Re-execute a node if it is impacted by a set of tiddler changes, and update the associated DOM elements as necessary
+	changes: hashmap of tiddler changes in the format used by $tw.Wiki
+*/
+Node.prototype.refreshInDom = function(changes) {
+	
+};
+
+exports.Node = Node;
+
+})();