A SwiftUI OSX TextField alternative with autoresizing, wrapping support
SwiftUI's TextField component for OSX works well in standard form-style interfaces, but falls short when what's needed is an auto-resizing, unbordered, optionally wrapping text input area. To fill the gap, I've repurposed an older NSTextField subclass that I've used in past, as a SwiftUI NSViewRepresentable component.
EditableLabel offers a text binding, optional min- and max- width constraints, with scrolling or line wrapping support. Its two associated closures - didChange and didEndEditing differ slightly from their equivalents on TextField in that both take the current string value as an argument. The didEndEditing closure also returns a Bool value which, if true, will dismiss the field editor.
Here's some code from a scratchpad View I've created, showing how EditableLabel can be used:
var body: some View {
VStack {
ForEach(store.project(OrderedPages())) {
page in
// NOTE: since `didEndEditing` is passed the string value
// we don't strictly need to maintain an @State property to
// track the field's contents, and can pass a `.constant(...)`
// binding instead. This is optional, but can be handy at times.
EditableLabel(text: .constant(page.name)) {
value in
self.store.dispatch(RenamePage(id: page.id, name: value))
return true
}
}
}
.padding()
.frame(maxWidth: .infinity, maxHeight: .infinity)
}
More configuration, formatter support, I'm sure there's lots...
MIT