Struct DropDown 

#[repr(C)]
pub struct DropDown {
    pub choices: StringVec,
    pub selected: usize,
    pub on_choice_change: OptionDropDownOnChoiceChange,
}

A drop-down / select widget that displays the currently selected item and opens a native menu popup when focused.

Fields

choices: StringVec

The list of choices presented in the popup menu.

selected: usize

Zero-based index of the currently selected choice.

on_choice_change: OptionDropDownOnChoiceChange

Optional callback invoked when the user picks a different choice.

Implementations

impl DropDown

pub fn new(choices: StringVec) -> Self

Creates a new DropDown with the given choices and no callback.

pub fn set_on_choice_change<C: Into<DropDownOnChoiceChangeCallback>>( &mut self, data: RefAny, callback: C, )

Sets the callback invoked when the user selects a different choice.

pub fn with_on_choice_change<C: Into<DropDownOnChoiceChangeCallback>>( self, data: RefAny, callback: C, ) -> Self

Builder variant of Self::set_on_choice_change.

pub fn swap_with_default(&mut self) -> Self

Replaces self with the default value and returns the original.

pub fn dom(self) -> Dom

Builds the DOM tree for this drop-down widget.

Trait Implementations

impl Clone for DropDown

fn clone(&self) -> DropDown

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DropDown

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

Formats the value using the given formatter.

impl Default for DropDown

fn default() -> Self

Returns the “default value” for a type.

impl From<DropDown> for Dom

fn from(b: DropDown) -> Dom

Converts to this type from the input type.

impl PartialEq for DropDown

fn eq(&self, other: &DropDown) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for DropDown