Struct TableNav 

pub struct TableNav {
    pub active_row: usize,
    pub active_col: usize,
}

Keyboard navigation state — tracks the active (focused) cell.

Row and column indices here are visible indices (after filter / sort), not source indices. The caller is responsible for converting to source indices when fetching cell data.

Fields

active_row: usize

The currently focused row in the visible (filtered/sorted) row set.

active_col: usize

The currently focused column in the visible column order.

Implementations

impl TableNav

pub fn new() -> Self

Create a new TableNav positioned at the top-left cell.

pub fn move_up(&mut self, total_rows: usize) -> bool

Move focus one row up. Returns true if the position changed.

Clamps at row 0; no-op when total_rows is zero.

pub fn move_down(&mut self, total_rows: usize) -> bool

Move focus one row down. Returns true if the position changed.

Clamps at total_rows - 1; no-op when total_rows is zero.

pub fn move_left(&mut self, total_cols: usize) -> bool

Move focus one column left. Returns true if the position changed.

Clamps at column 0; no-op when total_cols is zero.

pub fn move_right(&mut self, total_cols: usize) -> bool

Move focus one column right. Returns true if the position changed.

Clamps at total_cols - 1; no-op when total_cols is zero.

pub fn move_home_row(&mut self) -> bool

Move focus to the first visible row. Returns true if the position changed.

pub fn move_end_row(&mut self, total_rows: usize) -> bool

Move focus to the last visible row. Returns true if the position changed.

No-op when total_rows is zero.

pub fn page_up(&mut self, page_size: usize) -> bool

Scroll focus up by page_size rows (Page Up).

Clamps at row 0. Returns true if the position changed.

pub fn page_down(&mut self, total_rows: usize, page_size: usize) -> bool

Scroll focus down by page_size rows (Page Down).

Clamps at total_rows - 1. Returns true if the position changed. No-op when total_rows is zero.

pub fn set_position(&mut self, row: usize, col: usize)

Set the active cell position explicitly (e.g. on mouse click).

Trait Implementations

impl Clone for TableNav

fn clone(&self) -> TableNav

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TableNav

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

Formats the value using the given formatter.

impl Default for TableNav

fn default() -> TableNav

Returns the “default value” for a type.