Struct DropDown 

pub struct DropDown<'a, Message, Theme = Theme, Renderer = Renderer>
where
    Message: Clone,
    Renderer: Renderer,
{ /* private fields */ }

Customizable drop down menu widget

Implementations

impl<'a, Message, Theme, Renderer> DropDown<'a, Message, Theme, Renderer>

where Message: Clone, Renderer: Renderer,

pub fn new<U, B>(underlay: U, overlay: B, expanded: bool) -> Self

where U: Into<Element<'a, Message, Theme, Renderer>>, B: Into<Element<'a, Message, Theme, Renderer>>,

Create a new DropDown

pub fn width(self, width: impl Into<Length>) -> Self

The width of the overlay

pub fn height(self, height: impl Into<Length>) -> Self

The height of the overlay

pub fn alignment(self, alignment: impl Into<Alignment>) -> Self

The alignment of the overlay relative to the underlay

pub fn offset(self, offset: impl Into<Offset>) -> Self

The offset of the overlay

pub fn on_dismiss(self, message: Message) -> Self

Send a message when a click occur outside of the overlay when expanded

Trait Implementations

impl<'a, Message, Theme: 'a, Renderer> From<DropDown<'a, Message, Theme, Renderer>> for Element<'a, Message, Theme, Renderer>

where Message: 'a + Clone, Renderer: 'a + Renderer,

fn from(drop_down: DropDown<'a, Message, Theme, Renderer>) -> Self

Converts to this type from the input type.

impl<'a, Message, Theme, Renderer> Widget<Message, Theme, Renderer> for DropDown<'a, Message, Theme, Renderer>

where Message: 'a + Clone, Renderer: 'a + Renderer,

fn size(&self) -> Size<Length>

Returns the Size of the Widget in lengths.

fn layout( &mut self, tree: &mut Tree, renderer: &Renderer, limits: &Limits, ) -> Node

Returns the layout::Node of the Widget.

fn draw( &self, state: &Tree, renderer: &mut Renderer, theme: &Theme, style: &Style, layout: Layout<'_>, cursor: Cursor, viewport: &Rectangle, )

Draws the Widget using the associated Renderer.

fn children(&self) -> Vec<Tree>

Returns the state Tree of the children of the Widget.

fn diff(&self, tree: &mut Tree)

Reconciles the Widget with the provided Tree.

fn operate<'b>( &'b mut self, state: &'b mut Tree, layout: Layout<'_>, renderer: &Renderer, operation: &mut dyn Operation<()>, )

Applies an Operation to the Widget.

fn update( &mut self, state: &mut Tree, event: &Event, layout: Layout<'_>, cursor: Cursor, renderer: &Renderer, clipboard: &mut dyn Clipboard, shell: &mut Shell<'_, Message>, viewport: &Rectangle, )

Processes a runtime Event.

fn mouse_interaction( &self, state: &Tree, layout: Layout<'_>, cursor: Cursor, viewport: &Rectangle, renderer: &Renderer, ) -> Interaction

Returns the current mouse::Interaction of the Widget.

fn overlay<'b>( &'b mut self, state: &'b mut Tree, layout: Layout<'b>, renderer: &Renderer, viewport: &Rectangle, translation: Vector, ) -> Option<Element<'b, Message, Theme, Renderer>>

Returns the overlay of the Widget, if there is any.

fn size_hint(&self) -> Size<Length>

Returns a Size hint for laying out the Widget.

fn tag(&self) -> Tag

Returns the Tag of the Widget.

fn state(&self) -> State

Returns the State of the Widget.