def __present__(self, fragment, inheritedState):
title = Label('Code stepper')
header = _headerStyle(
Row([
title.alignVCentre().alignHPack(),
Pres.coerce(self._stepButton).alignHPack(),
Pres.coerce(self._runButton).alignHPack()
])).alignHExpand()
main = Column([header, Pres.coerce(self._code).alignHExpand()])
return _stepperBorder.surround(main).withCommands(_stepperCommands)
def _dropPrompt(varNameTextEntryListener): textEntry = TextEntry( 'var', varNameTextEntryListener ).regexValidated( _varNameRegex, 'Please enter a valid identifier' ) prompt = Label( 'Place object into a variable named: ' ) textEntry.grabCaretOnRealise() textEntry.selectAllOnRealise() return _dropPromptStyle.applyTo( Border( Paragraph( [ prompt.alignVCentre(), textEntry.alignVCentre() ] ).alignHPack() ) )