Add range node + default mods

src/view/TreeView.ts

@@ -31,15 +31,23 @@ export class TreeView implements ModelListener {
     return id
   }
 
-  registerClick(callback: (el: Element) => void): string {
+  registerEvent(type: string, callback: (el: Element) => void): string {
     return this.register(el => {
-      el.addEventListener('click', evt => {
+      el.addEventListener(type, evt => {
         callback(el)
         evt.stopPropagation()
       })
     })
   }
 
+  registerChange(callback: (el: Element) => void): string {
+    return this.registerEvent('change', callback)
+  }
+
+  registerClick(callback: (el: Element) => void): string {
+    return this.registerEvent('click', callback)
+  }
+
   render() {
     this.target.innerHTML = this.model.schema.render(new Path(), this.model.data, this)
     for (const id in this.registry) {