Struct TreeViewState 

pub struct TreeViewState {
    pub expanded: HashMap<String, bool>,
    pub selected: HashMap<String, bool>,
}

State management for tree view

Fields

expanded: HashMap<String, bool>

Map of item ID to whether it’s expanded

selected: HashMap<String, bool>

Map of item ID to whether it’s selected

Implementations

impl TreeViewState

pub fn new() -> Self

Create a new tree view state

pub fn is_expanded(&self, id: &str) -> bool

Check if an item is expanded

pub fn toggle_expanded(&mut self, id: &str)

Toggle the expanded state of an item

pub fn set_expanded(&mut self, id: &str, expanded: bool)

Set the expanded state of an item

pub fn is_selected(&self, id: &str) -> bool

Check if an item is selected

pub fn toggle_selected(&mut self, id: &str)

Toggle the selected state of an item

pub fn set_selected(&mut self, id: &str, selected: bool)

Set the selected state of an item

pub fn clear_selections(&mut self)

Clear all selections

pub fn expand_all(&mut self, items: &[TreeViewItem])

Expand all items

pub fn collapse_all(&mut self)

Collapse all items

Trait Implementations

impl Clone for TreeViewState

fn clone(&self) -> TreeViewState

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TreeViewState

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TreeViewState

fn default() -> TreeViewState

Returns the “default value” for a type.