Struct zng::window::WindowCloseRequestedArgs

pub struct WindowCloseRequestedArgs {
    pub timestamp: DInstant,
    pub windows: IdSet<WindowId>,
    /* private fields */
}

WINDOW_CLOSE_REQUESTED_EVENT args.

Requesting propagation().stop() on this event cancels the window close.

Fields

timestamp: DInstant

Instant the event happened.

windows: IdSet<WindowId>

Windows closing, headed and headless.

This is at least one window, is multiple if the close operation was requested as group, cancelling the request cancels close for all windows.

Implementations

impl WindowCloseRequestedArgs

pub fn new( timestamp: impl Into<DInstant>, propagation_handle: EventPropagationHandle, windows: impl Into<IdSet<WindowId>>, ) -> WindowCloseRequestedArgs

New args from values that convert into the argument types.

pub fn now(windows: impl Into<IdSet<WindowId>>) -> WindowCloseRequestedArgs

Arguments for event that happened now (INSTANT.now).

impl WindowCloseRequestedArgs

pub fn headed(&self) -> impl Iterator<Item = WindowId>

Gets only headed windows that will close.

pub fn headless(&self) -> impl Iterator<Item = WindowId>

Gets only headless windows that will close.

Trait Implementations

impl AnyEventArgs for WindowCloseRequestedArgs

fn delivery_list(&self, list: &mut UpdateDeliveryList)

Broadcast to all widgets.

fn clone_any(&self) -> Box<dyn AnyEventArgs>

Clone the event into a type erased box.

fn as_any(&self) -> &(dyn Any + 'static)

Access to dyn Any methods.

fn timestamp(&self) -> DInstant

Gets the instant this event happened.

fn propagation(&self) -> &EventPropagationHandle

Propagation handle associated with this event instance.

impl Clone for WindowCloseRequestedArgs

fn clone(&self) -> WindowCloseRequestedArgs

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for WindowCloseRequestedArgs

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

Formats the value using the given formatter.

impl EventArgs for WindowCloseRequestedArgs

fn handle<F, R>(&self, handler: F) -> Option<R>

where F: FnOnce(&Self) -> R,

Calls handler and stops propagation if propagation is still allowed.