tornadofx-guide

Workspaces
class MyApp: App(MyWorkspace::class) {
override fun onBeforeShow(view: UIComponent) {
workspace.dock()
}
}
class MyWorkspace: Workspace() {
override fun onRefresh() {
customerTable.asyncItems { customerController.listCustomers() }
}
}
Same goes for the Delete button. We will revisit the Save button and introduce a neat trick
to only activate it when there are dirty changes later in this chapter.
Tabbed Views
You may at one point dock a View containing a TabPane inside of a Workspace , and then
add tabs which represents further UIComponents. You can quite easily proxy the savable,
refreshable and deletable state and actions from the Workspace onto the View represented
by the currently active Tab. Consider a Customer Editor which has tabs for editing customer
data, and one for editing contacts for that customer. Whenever the user selects one of the
tabs, the buttons in the Workspace should interact with the state and actions from the
selected tab view.
class CustomerEditor : View("Customer Editor") {
override val root = tabpane {
tab(CustomerBasicDataEditor::class)
tab(ContactListEditor::class)
connectWorkspaceActions()
}
}
That single call to connectWorkspaceActions() takes care of everything for us. The actual
implementation of the two sub views are omitted for brevity, but you can imagine that they
share a CustomerViewModel injected into the scope they share for example.
The actual implementation of connectWorkspaceActions is quite simple, and reveals what's
going on under the cover:
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