Struct TextEditingController 

pub struct TextEditingController { /* private fields */ }

A text field’s text, and the changes to it.

Cloning gives another handle to the same text.

Implementations

impl TextEditingController

pub fn new() -> Self

A controller holding no text.

pub fn with_text(text: impl Into<String>) -> Self

A controller that starts out holding text.

pub fn text(&self) -> String

The text.

pub fn with_text_ref<R>(&self, read: impl FnOnce(&str) -> R) -> R

Reads the text without copying it.

pub fn set_text(&self, text: impl Into<String>)

Replaces the text; a field driven by this controller shows it at once. Changing it to what it already is tells nobody.

pub fn clear(&self)

Empties the text.

pub fn is_empty(&self) -> bool

Whether the text is empty.

pub fn len(&self) -> usize

How many characters the text has.

Trait Implementations

impl Clone for TextEditingController

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TextEditingController

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

Formats the value using the given formatter.

impl Default for TextEditingController

fn default() -> Self

Returns the “default value” for a type.

impl Listenable for TextEditingController

fn add_listener(&self, listener: impl Fn() + 'static) -> Subscription

Calls listener whenever this changes, until the returned Subscription is dropped.