Struct HitArea 

pub struct HitArea {
    pub widget_key: String,
    pub widget_kind: &'static str,
    pub buffer_row: u32,
    pub byte_start: usize,
    pub byte_end: usize,
    pub payload: Value,
    pub event_type: &'static str,
}

One clickable rectangle within a rendered widget panel.

The renderer produces one HitArea per interactive widget node (Toggle, Button in v1). Layout containers (Row, Col, Spacer, HintBar, Raw) emit no hit areas of their own; their children’s hit areas bubble up with row/byte offsets adjusted to reflect the final on-screen position.

Hit-test is (buffer_row, buffer_col_byte) ∈ rectangle; the byte range is in UTF-8 bytes within the row’s text, matching the coordinate space mouse_click already delivers (HookArgs::MouseClick::buffer_col).

Fields

widget_key: String

Stable widget key from the spec, or empty when the spec did not assign one.

widget_kind: &'static str

Widget kind discriminator: "toggle" or "button".

buffer_row: u32

0-indexed row within the rendered virtual buffer.

byte_start: usize

First UTF-8 byte (inclusive) within the row’s text.

byte_end: usize

Last UTF-8 byte (exclusive) within the row’s text.

payload: Value

Event payload to deliver with the widget_event hook. For "toggle": { "checked": <new value> }. For "button": {}.

event_type: &'static str

Event type to deliver with the widget_event hook ("toggle" or "activate").

Trait Implementations

impl Clone for HitArea

fn clone(&self) -> HitArea

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HitArea

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

Formats the value using the given formatter.