NodeChangingAction enumeration

NodeChangingAction enumeration

Specifies the type of node change.

Members

Name	Description
Insert	A node is being inserted in the tree.
Remove	A node is being removed from the tree.

Examples

Shows how to use a NodeChangingCallback to monitor changes to the document tree in real-time as we edit it.

test.skip('NodeChangingCallback - TODO: WORDSNODEJS-120 - Add support of doc.nodeChangingCallback', () => {
    let doc = new aw.Document();
    doc.nodeChangingCallback = new NodeChangingPrinter();

    let builder = new aw.DocumentBuilder(doc);
    builder.writeln("Hello world!");
    builder.startTable();
    builder.insertCell();
    builder.write("Cell 1");
    builder.insertCell();
    builder.write("Cell 2");
    builder.endTable();

    builder.insertImage(base.imageDir + "Logo.jpg");            

    builder.currentParagraph.parentNode.removeAllChildren();
  });


/*    /// <summary>
    /// Prints every node insertion/removal as it takes place in the document.
    /// </summary>
  private class NodeChangingPrinter : INodeChangingCallback
  {
    void aw.INodeChangingCallback.nodeInserting(NodeChangingArgs args)
    {
      expect(args.action).toEqual(aw.NodeChangingAction.Insert);
      expect(args.oldParent).toEqual(null);
    }

    void aw.INodeChangingCallback.nodeInserted(NodeChangingArgs args)
    {
      expect(args.action).toEqual(aw.NodeChangingAction.Insert);
      expect(args.newParent).not.toBe(null);

      console.log("Inserted node:");
      console.log(`\tType:\t${args.node.nodeType}`);

      if (args.node.getText().trim() != "")
      {
        console.log(`\tText:\t\"${args.node.getText().trim()}\"`);
      }

      console.log(`\tHash:\t${args.node.getHashCode()}`);
      console.log(`\tParent:\t${args.newParent.nodeType} (${args.newParent.getHashCode()})`);
    }

    void aw.INodeChangingCallback.nodeRemoving(NodeChangingArgs args)
    {
      expect(args.action).toEqual(aw.NodeChangingAction.Remove);
    }

    void aw.INodeChangingCallback.nodeRemoved(NodeChangingArgs args)
    {
      expect(args.action).toEqual(aw.NodeChangingAction.Remove);
      expect(args.newParent).toBe(null);

      console.log(`Removed node: ${args.node.nodeType} (${args.node.getHashCode()})`);
    }
  }

See Also

• module Aspose.Words
• class NodeChangingArgs
• property NodeChangingArgs.action