Struct seed::virtual_dom::event_handler_manager::EventHandlerManager

pub struct EventHandlerManager<Ms> { /* private fields */ }

Manages event handlers and listeners for elements.

Implementations

impl<Ms> EventHandlerManager<Ms>

pub fn new() -> Self

Creates an empty manager instance.

pub fn with_event_handlers(event_handlers: Vec<EventHandler<Ms>>) -> Self

Creates a new manager instance with given event handlers. It doesn’t create listeners automatically - you have to call attach_listeners.

pub fn attach_listeners(
    &mut self,
    event_target: impl Into<EventTarget> + 'static,
    old_manager: Option<&mut EventHandlerManager<Ms>>,
    mailbox: &Mailbox<Ms>
)

Creates missing listeners and attaches them to the given event_target. It can reuse listeners from the old_manager.

pub fn add_event_handlers(&mut self, event_handlers: Vec<EventHandler<Ms>>)

Add new event handlers into the manager. It doesn’t create listeners automatically - you have to call attach_listeners.

pub fn take_and_setup_listener(
    &mut self,
    trigger: &Ev,
    event_handlers: Rc<RefCell<Vec<EventHandler<Ms>>>>
) -> Option<Listener<Ms>>

This method is used in attach_listeners method to move listeners from the old manager.

Trait Implementations

impl<Ms> Clone for EventHandlerManager<Ms>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<Ms: Debug> Debug for EventHandlerManager<Ms>

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

Formats the value using the given formatter.

impl<Ms: Default> Default for EventHandlerManager<Ms>

fn default() -> EventHandlerManager<Ms>

Returns the “default value” for a type.

impl<Ms: 'static, OtherMs: 'static> MessageMapper<Ms, OtherMs> for EventHandlerManager<Ms>

fn map_msg(
    self,
    f: impl FnOnce(Ms) -> OtherMs + 'static + Clone
) -> EventHandlerManager<OtherMs>

Note: Listeners will be automatically detached and removed. You have to call attach_listeners to recreate them.

type SelfWithOtherMs = EventHandlerManager<OtherMs>