Tree: double click support

[jasdom]

Hi, we are replacing our tree components using @itwin/itwinui-react, and some of the trees require additional functionality when a node is double clicked. Are there any plans to allow passing a callback that is called when a node is double clicked?

[mayank99]

You can implement this yourself in user-land today by passing onDoubleClick via <TreeNode nodeProps={{ onDoubleClick: () => {} }} />. (Make sure you're on the latest version if you're not seeing this prop)

That being said, double-click behavior is non-standard and can lead to a poor user experience, especially if not using a mouse. Make sure to provide an alternative path for the user to perform the same action. Double-click should be seen as an optional shortcut.