Struct Handlers 

pub struct Handlers<S> { /* private fields */ }

The handler tables produced by building a frame. Dispatch resolves an ActionId / FocusId (from hit_test / focus_at) to its handler and invokes it against the app state.

Implementations

impl<S> Handlers<S>

pub fn dispatch(&mut self, id: ActionId, state: &mut S) -> bool

Invoke the tap handler for id. Returns true if one existed and ran.

pub fn dispatch_key( &mut self, id: FocusId, input: &KeyInput, state: &mut S, ) -> bool

Invoke the key handler for focused element id with input. Returns true if one existed and ran.

pub fn dispatch_drag( &mut self, id: DragId, fraction: f64, state: &mut S, ) -> bool

Invoke the drag handler for id with fraction (0..=1 across the element width). Returns true if one existed and ran.

pub fn dispatch_text_pos( &mut self, id: TextPosId, index: usize, extend: bool, state: &mut S, ) -> bool

Invoke the text-pointer handler for id with a resolved byte index and the extend flag. Returns true if one existed and ran.

pub fn dispatch_context( &mut self, id: ContextId, pos: Point, state: &mut S, ) -> bool

Invoke the context (secondary-click) handler for id with the click pos. Returns true if one existed and ran.

pub fn len(&self) -> usize

Total number of registered handlers (taps + keys + drags + text-pointer

• context).

pub fn is_empty(&self) -> bool

Trait Implementations

impl<S> Debug for Handlers<S>

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

Formats the value using the given formatter.

impl<S> Default for Handlers<S>

fn default() -> Self

Returns the “default value” for a type.