Struct TreeView 

pub struct TreeView { /* private fields */ }

A hierarchical list. Create with cx.new(|cx| TreeView::new(cx).nodes(...)).

Implementations

impl TreeView

pub fn new(cx: &mut Context<'_, Self>) -> Self

pub fn nodes(self, nodes: Vec<TreeNode>) -> Self

Set the tree data.

pub fn bind_nodes( self, signal: &Signal<Vec<TreeNode>>, cx: &mut Context<'_, Self>, ) -> Self

Drive the tree data from a Signal<Vec<TreeNode>>: the view adopts the signal’s nodes now and re-reads them on every signal change. Expansion and selection survive data updates (they are keyed by node id).

pub fn expand(self, id: impl Into<SharedString>) -> Self

Expand the branch with this id (construction-time; users toggle live).

pub fn collapse(self, id: impl Into<SharedString>) -> Self

Collapse the branch with this id.

pub fn default_expanded(self, expanded: bool) -> Self

Start with every branch expanded. Applies to the current nodes and to nodes assigned later via nodes / bind_nodes.

pub fn expanded_ids(&self) -> Vec<SharedString>

The ids of every expanded branch, sorted for determinism.

pub fn selected_id(&self) -> Option<SharedString>

The id of the selected node, if any.

Trait Implementations

impl EventEmitter<TreeViewEvent> for TreeView

impl Render for TreeView

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

Render this view into an element tree.