Struct Popover 

pub struct Popover { /* private fields */ }

A click-to-toggle popover anchored to a trigger Response.

Call Popover::show immediately after painting the trigger; the popover toggles open on trigger clicks and closes on outside-click, Esc, or a subsequent trigger click.

Implementations

impl Popover

pub fn new(id_salt: impl Hash) -> Self

Create a popover keyed by id_salt. The salt is used to persist the open/closed state across frames and must be stable for the trigger it’s attached to.

pub fn popup_id(id_salt: impl Hash) -> Id

The internal popup id for a given id_salt.

Use this with egui::Popup::open_id / egui::Popup::close_id to open or close a popover programmatically (for example, from a keyboard shortcut or a test harness).

pub fn side(self, side: PopoverSide) -> Self

Which side of the trigger to anchor on. Default: PopoverSide::Bottom.

pub fn title(self, title: impl Into<WidgetText>) -> Self

Add a strong title row above the body.

pub fn width(self, width: f32) -> Self

Fix the popover’s content width. When unset, the popover sizes itself to the content and its min_width.

pub fn min_width(self, min_width: f32) -> Self

Minimum content width in points. Default: 200.

pub fn gap(self, gap: f32) -> Self

Gap between the trigger and the popover, in points. Default: 8.

pub fn arrow(self, arrow: bool) -> Self

Toggle the small arrow that points at the trigger. Default: on.

pub fn show<R>( self, trigger: &Response, add_contents: impl FnOnce(&mut Ui) -> R, ) -> Option<InnerResponse<R>>

Render the popover attached to trigger. Returns Some with the body closure’s return value while the popover is open, None while it is closed.

Trait Implementations

impl Clone for Popover

fn clone(&self) -> Popover

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Popover

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

Formats the value using the given formatter.