Struct TreeSelector 

pub struct TreeSelector {
    pub on_select: Option<Box<dyn FnMut(String)>>,
    pub on_cancel: Option<Box<dyn FnMut()>>,
    pub on_label_change: Option<BoxLabelChange>,
    /* private fields */
}

Fields

on_select: Option<Box<dyn FnMut(String)>>

Called when user selects an entry.

on_cancel: Option<Box<dyn FnMut()>>

Called when user cancels (presses Esc when search is empty).

on_label_change: Option<BoxLabelChange>

Called when user changes a label.

Implementations

impl TreeSelector

pub fn new( tree: Vec<SessionTreeNode>, current_leaf_id: Option<String>, terminal_height: usize, initial_filter_mode: Option<FilterMode>, ) -> Self

pub fn set_initial_selection(&mut self, entry_id: &str)

Set the initial selection to a specific entry (used when re-opening after summarization prompt). Must be called after construction, before rendering.

pub fn handle_key(&mut self, key: &KeyEvent) -> bool

Trait Implementations

impl Component for TreeSelector

fn render(&mut self, width: usize) -> Vec<String>

Render to lines for the given viewport width. Each returned string MUST NOT exceed width in visible width.

fn handle_input(&mut self, key: &KeyEvent) -> bool

Handle keyboard input. Return true if consumed.

fn invalidate(&mut self)

Mark this component as needing re-render. Called when internal state changes (output received, expanded toggled, etc.).

fn render_padded(&mut self, width: usize) -> Vec<String>

Render and pad each line to exactly width visible columns. Default implementation calls render(width) and pads each line with trailing spaces if its visible width is less than width.

fn handle_paste(&mut self, _text: &str)

Handle a paste event (text from bracketed paste mode). Default no-op; override to process pasted content.

fn is_dirty(&self) -> bool

Check if this component needs re-render. Default: false — the Container’s per-child cache tracking determines whether to re-render. Override to return true for components whose state can change without explicit invalidation (e.g. ToolExecComponent receiving streaming output).

fn clear_dirty(&mut self)

Clear dirty flag after successful render.

fn cache_key(&self, _width: usize) -> Option<RenderCacheKey>

Get the cache key for this component’s current state. Return None to disable caching (always re-render).

fn get_cached_render(&self) -> Option<&RenderCache>

Get cached render output, if available and valid.

fn set_cached_render(&mut self, _cache: RenderCache)

Store render output in cache.

fn is_focusable(&self) -> bool

Whether this component wants focus (for IME cursor positioning).

fn set_expanded(&mut self, _expanded: bool)

Toggle expanded/collapsed state. No-op by default. Override for components that support expand/collapse (tool results, messages, etc.).

fn set_hide_thinking(&mut self, _hide: bool)

Toggle thinking block visibility. No-op by default. Override for components that display thinking content (AssistantMessageComponent).

impl Focusable for TreeSelector

fn set_focused(&mut self, focused: bool)

fn focused(&self) -> bool