Struct zng_app::widget::info::WidgetInfoChangedArgs

pub struct WidgetInfoChangedArgs {
    pub timestamp: DInstant,
    pub window_id: WindowId,
    pub prev_tree: WidgetInfoTree,
    pub tree: WidgetInfoTree,
    /* private fields */
}

WIDGET_INFO_CHANGED_EVENT args.

Fields

timestamp: DInstant

Instant the event happened.

window_id: WindowId

Window ID.

prev_tree: WidgetInfoTree

Previous widget tree.

This is an empty tree before the first tree build.

tree: WidgetInfoTree

New widget tree.

Implementations

impl WidgetInfoChangedArgs

pub fn new( timestamp: impl Into<DInstant>, propagation_handle: EventPropagationHandle, window_id: impl Into<WindowId>, prev_tree: impl Into<WidgetInfoTree>, tree: impl Into<WidgetInfoTree>, ) -> Self

New args from values that convert into the argument types.

pub fn now( window_id: impl Into<WindowId>, prev_tree: impl Into<WidgetInfoTree>, tree: impl Into<WidgetInfoTree>, ) -> Self

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

Trait Implementations

impl AnyEventArgs for WidgetInfoChangedArgs

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

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 WidgetInfoChangedArgs

fn clone(&self) -> WidgetInfoChangedArgs

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for WidgetInfoChangedArgs

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

Formats the value using the given formatter.

impl EventArgs for WidgetInfoChangedArgs

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

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

Calls handler and stops propagation if propagation is still allowed.