When the user edits a node of my CellTree, I want to inject a
composite widget into the tree at that point to handle the editing.
To experiment with this, I created the following custom TextArea sub-
class:
class MyTextArea extends TextArea {
public static MyTextArea addToElement(Element
GWT doesn't support what you are trying to do. You cannot add a widget to
an arbitrary element that is already a descendant of a widget.
There are two alternatives that could work. You could create a Cell that
switches to an editable via. See EditableTextCell for an example.
Alternatively,
