Button

Button is the standard labeled action control.

Button("Save changes").OnClick([] {
  SaveChanges();
})

Construct it from StringResource, std::string, std::string_view, or a string literal. The label is required component input rather than an arbitrary child view.

Interaction

.OnClick(...) uses the shared pointer, Enter, and Space activation path. The current theme resolves hover, pressed, focus-visible, disabled state, and Material ripple or Flat feedback.

Button("Delete")
    .OnClick(DeleteSelection)
    .With(Enabled(has_selection))

Enabled(false) removes activation and applies disabled semantics and style.

Theme and accessibility

ButtonStyle controls background, label style, disabled colors, padding, minimum size, radius, and optional indication. The component exposes button role, accessible label, focus, and activate action automatically.

Use Semantics{.hint = ...} only when the visible label does not fully explain the result.

API

• Constructors: Button(StringResource|string|string_view|const char*).
• Event: .OnClick(function) or .On<ViewEvents::Click>(function).
• Common modifiers: Enabled, Frame, Padding, Semantics.
• Theme style: ButtonStyle.

Use IconButton for an icon-only action and Chip for compact action or selection tokens.