Struct zng_app::widget::info::InteractivityChangedArgs

pub struct InteractivityChangedArgs {
    pub timestamp: DInstant,
    pub prev_tree: WidgetInfoTree,
    pub tree: WidgetInfoTree,
    pub changed: IdSet<WidgetId>,
    /* private fields */
}

INTERACTIVITY_CHANGED_EVENT args.

Fields

timestamp: DInstant

Instant the event happened.

prev_tree: WidgetInfoTree

Previous tree with old interactivity values.

tree: WidgetInfoTree

New tree with new interactivity values.

changed: IdSet<WidgetId>

All event subscribers that changed interactivity in this info update.

Implementations

impl InteractivityChangedArgs

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

New args from values that convert into the argument types.

pub fn now( prev_tree: impl Into<WidgetInfoTree>, tree: impl Into<WidgetInfoTree>, changed: impl Into<IdSet<WidgetId>>, ) -> Self

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

impl InteractivityChangedArgs

pub fn prev_interactivity(&self, widget_id: WidgetId) -> Option<Interactivity>

Previous interactivity of this widget.

Returns None if the widget was not in the previous info tree.

pub fn new_interactivity(&self, widget_id: WidgetId) -> Interactivity

New interactivity of the widget.

Panics

Panics if widget_id is not in tree. This method must be called only for changed.

pub fn is_enable(&self, widget_id: WidgetId) -> bool

Widget was disabled or did not exist, now is enabled.

pub fn is_disable(&self, widget_id: WidgetId) -> bool

Widget was enabled or did not exist, now is disabled.

pub fn is_unblock(&self, widget_id: WidgetId) -> bool

Widget was blocked or did not exist, now is unblocked.

pub fn is_block(&self, widget_id: WidgetId) -> bool

Widget was unblocked or did not exist, now is blocked.

pub fn is_vis_enable(&self, widget_id: WidgetId) -> bool

Widget was visually disabled or did not exist, now is visually enabled.

pub fn is_vis_disable(&self, widget_id: WidgetId) -> bool

Widget was visually enabled or did not exist, now is visually disabled.

pub fn enabled_change( &self, widget_id: WidgetId, ) -> Option<(Option<Interactivity>, Interactivity)>

Returns the previous and new interactivity if the widget was enabled, disabled or is new.

pub fn vis_enabled_change( &self, widget_id: WidgetId, ) -> Option<(Option<Interactivity>, Interactivity)>

Returns the previous and new interactivity if the widget was visually enabled, visually disabled or is new.

pub fn blocked_change( &self, widget_id: WidgetId, ) -> Option<(Option<Interactivity>, Interactivity)>

Returns the previous and new interactivity if the widget was blocked, unblocked or is new.

pub fn is_new(&self, widget_id: WidgetId) -> bool

Widget is new, no previous interactivity state is known, events that filter by interactivity change update by default if the widget is new.

Trait Implementations

impl AnyEventArgs for InteractivityChangedArgs

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

Target the changed 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 InteractivityChangedArgs

fn clone(&self) -> InteractivityChangedArgs

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for InteractivityChangedArgs

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

Formats the value using the given formatter.

impl EventArgs for InteractivityChangedArgs

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

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

Calls handler and stops propagation if propagation is still allowed.