Trait InputExtras

Source

pub trait InputExtras: Default + 'static {
    // Provided methods
    fn decoration_layers(&self) -> Vec<&[TextDecoration]> { ... }
    fn semantic_token_styles(
        &self,
        _text: &Rope,
        _range: &Range<usize>,
        _resolver: &dyn HighlightStyleResolver,
    ) -> Vec<(Range<usize>, HighlightStyle)> { ... }
    fn document_color_swatches(
        &self,
        _text: &Rope,
        _range: &Range<usize>,
    ) -> Vec<(Range<usize>, Hsla)> { ... }
    fn hover_symbol_range(&self) -> Option<Range<usize>> { ... }
    fn inline_completion_item(&self) -> Option<&InlineCompletionItem> { ... }
    fn context_menu_capabilities(&self) -> (bool, bool) { ... }
}

Expand description

What the renderer may read out of a mode’s extra state.

Kept apart from InputModeKind on purpose. This trait is data: the renderer is generic over the mode, so it cannot name EditorExtras and reach its fields directly, and these are the accessors it goes through instead. Every one of them has an empty answer, which is what a plain input and a textarea give.

InputModeKind is behavior: points where the engine hands control back during an edit. Adding a field an editor renders belongs here and leaves the engine’s callbacks alone.