Add Tree.move

public/prosemirror.html

@@ -288,7 +288,7 @@ <h2>Yorkie.RGASplit</h2>
         await client.activate();
 
         // 01. Build yorkie.Text from ProseMirror doc.
-        const doc = new yorkie.Document('prosemirror');
+        const doc = new yorkie.Document('prosemirror01234567890123456789');
         window.doc = doc;
         await client.attach(doc);
         doc.update((root) => {
@@ -352,13 +352,14 @@ <h2>Yorkie.RGASplit</h2>
                   gapFrom,
                   gapTo,
                   structure,
+                  insert,
                   slice: { content, openStart, openEnd },
                 } = step;
 
                 // 02-1. Backspace: Level delete
                 // TODO(hackerwins): replaceAround replaces the given range with given gap.
                 if (stepType === 'replaceAround') {
-                  root.tree.move(from, to, gapFrom, gapTo);
+                  root.tree.move(from, to, gapFrom, gapTo, insert,  ...content.content.map(content => docToTreeNode(content.toJSON())));
                   continue;
                 }
 

src/document/crdt/rht.ts

@@ -97,6 +97,13 @@ export class RHT {
     return this.nodeMapByKey.has(key);
   }
 
+  /**
+   * `delete` deletes the key
+   */
+  public delete(key: string) {
+    return this.nodeMapByKey.delete(key);
+  }
+
   /**
    * `get` returns the value of the given key.
    */