Struct DataView 

pub struct DataView<T: 'static> { /* private fields */ }

A signal-bound collection view. Create with cx.new(|cx| DataView::new(cx, &signal).item(...)).

Implementations

impl<T: 'static> DataView<T>

pub fn new(cx: &mut Context<'_, Self>, source: &Signal<Vec<T>>) -> Self

Bind the view to a collection signal. Every set/update on the signal repaints the view.

pub fn item<E>( self, template: impl Fn(&T, usize, &mut Window, &mut App) -> E + 'static, ) -> Self

where E: IntoElement,

The item template, re-invoked every frame with the borrowed item and its source index — items always show live data.

pub fn filter(self, pred: impl Fn(&T) -> bool + 'static) -> Self

Show only the items matching pred. A projection: the source vector is untouched.

pub fn sort_by(self, cmp: impl Fn(&T, &T) -> Ordering + 'static) -> Self

Display order (stable sort). A projection: the source vector is untouched.

pub fn layout(self, layout: DataViewLayout) -> Self

pub fn gap(self, gap: Size) -> Self

Spacing between items (default Sm).

pub fn empty<E>( self, content: impl Fn(&mut Window, &mut App) -> E + 'static, ) -> Self

where E: IntoElement,

Shown when the projection yields nothing (empty source or everything filtered out). Rebuilt each render.

pub fn selectable(self) -> Self

Enable single selection: items get hover/selected styling and clicks emit DataViewEvent::Selected.

pub fn selected_index(&self) -> Option<usize>

The selected source index, if any.

Trait Implementations

impl<T: 'static> EventEmitter<DataViewEvent> for DataView<T>

impl<T: 'static> Render for DataView<T>

fn render( &mut self, window: &mut Window, cx: &mut Context<'_, Self>, ) -> impl IntoElement

Render this view into an element tree.