Struct InputBar 

pub struct InputBar {
    pub prefix: String,
    pub buffer: String,
    pub cursor: usize,
    pub suggestions: Vec<Suggestion>,
    pub selected: Option<usize>,
    pub palette: Palette,
    pub cursor_visible: bool,
}

Single-line text input + dropdown.

Fields

prefix: String

buffer: String

cursor: usize

Byte index into Self::buffer where the next character would be inserted. 0..=buffer.len() always; never points into the middle of a UTF-8 codepoint.

suggestions: Vec<Suggestion>

selected: Option<usize>

Index into Self::suggestions. None means “no selection, Enter uses the typed buffer verbatim”.

palette: Palette

cursor_visible: bool

Caller-managed cursor blink. Flip every 500ms or so.

Implementations

impl InputBar

pub fn with_prefix(prefix: impl Into<String>) -> Self

Build an empty input bar with the given prefix string.

pub fn current_value(&self) -> &str

What the caller should treat as the “confirmed value” on Enter. If a suggestion is selected, returns its value; else returns the raw buffer.

pub fn clear(&mut self)

Reset to “empty + prefix only” state. Doesn’t clear the prefix itself — callers swap the widget for one with a new prefix when transitioning between command line / omnibar.

pub fn handle_text(&mut self, ch: char)

Insert ch at the cursor and advance.

pub fn handle_back(&mut self)

Backspace — delete the codepoint before the cursor.

pub fn handle_delete_word(&mut self)

Delete the word before the cursor (<C-w>). A “word” is a run of non-whitespace, optionally preceded by whitespace.

pub fn handle_clear_line(&mut self)

Clear the buffer entirely (<C-u>).

pub fn handle_left(&mut self)

Move cursor one codepoint left.

pub fn handle_right(&mut self)

Move cursor one codepoint right.

pub fn handle_up(&mut self)

Move suggestion selection one row up. Wraps from 0 → no-op. <Up> arrow / <S-Tab>.

pub fn handle_down(&mut self)

Move suggestion selection one row down. <Down> / <Tab>.

pub fn set_suggestions(&mut self, suggestions: Vec<Suggestion>)

Replace the suggestion list. Resets selected to None.

pub fn total_height(&self) -> u32

Total pixel height when fully expanded with n visible suggestions, where n = min(suggestions.len(), MAX_SUGGESTIONS). Used by the host to compute the CEF child rect.

pub fn paint(&self, buffer: &mut [u32], width: usize, height: usize)

Paint the input bar into the top INPUT_HEIGHT rows of buffer, then any visible suggestion rows below that. Rows below total_height() are left untouched — the caller has either reserved that space or has nothing else to draw there.

pub fn paint_at( &self, buffer: &mut [u32], buf_w: usize, buf_h: usize, x: usize, y: usize, w: usize, h: usize, )

Paint into a sub-rectangle of the surface buffer. x, y, w, h are pixel positions in the full surface (stride = buf_w). The bar draws at the top of the rect; suggestions extend downward within it.

Trait Implementations

impl Clone for InputBar

fn clone(&self) -> InputBar

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for InputBar

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

Formats the value using the given formatter.

impl Default for InputBar

fn default() -> Self

Returns the “default value” for a type.