Simulating interactions

Result types carry enough state to simulate common interactions. Every interaction triggers a re-render of the tree so subsequent queries see the new state.

Click a button

btn := tree.FindButtonByLabel("Add")
btn.Click()

Click calls the handler attached to the button and then rerenders.

Toggle a checkbox

tog := tree.FindToggle(0)
tog.Toggle()

Toggle flips the current checked value and invokes the OnChange handler.

Type into a text field

tf := tree.FindTextField(0)
tf.Type("hello")
// tf.Text() == "hello"
tf.Submit()

Type updates the bound *StateValue[string] and rerenders. Submit rerenders without changing the value; it is a hook for triggering an OnSubmit-style interaction in components that observe the state.

Rerender manually

Rerender forces a render pass. Useful when state is mutated by code outside the tree:

store := someStateValue
store.Set("changed")
tree.Rerender()

Most of the time the Click, Toggle, and Type methods handle this for you.