Enum gtk::PropagationPhase

#[non_exhaustive]pub enum PropagationPhase {
    None,
    Capture,
    Bubble,
    Target,
    // some variants omitted
}

Describes the stage at which events are fed into a EventController.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

None

Events are not delivered automatically. Those can be manually fed through EventControllerExt::handle_event. This should only be used when full control about when, or whether the controller handles the event is needed.

Capture

Events are delivered in the capture phase. The capture phase happens before the bubble phase, runs from the toplevel down to the event widget. This option should only be used on containers that might possibly handle events before their children do.

Bubble

Events are delivered in the bubble phase. The bubble phase happens after the capture phase, and before the default handlers are run. This phase runs from the event widget, up to the toplevel.

Target

Events are delivered in the default widget event handlers, note that widget implementations must chain up on button, motion, touch and grab broken handlers for controllers in this phase to be run.

Trait Implementations

impl Clone for PropagationPhase

fn clone(&self) -> PropagationPhase

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for PropagationPhase

impl Debug for PropagationPhase

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

Formats the value using the given formatter.

impl Display for PropagationPhase

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

Formats the value using the given formatter.

impl Eq for PropagationPhase

impl<'a> FromValue<'a> for PropagationPhase

unsafe fn from_value(value: &Value) -> Self

Safety

impl<'a> FromValueOptional<'a> for PropagationPhase

unsafe fn from_value_optional(value: &Value) -> Option<Self>

Safety

impl Hash for PropagationPhase

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].

impl Ord for PropagationPhase

fn cmp(&self, other: &PropagationPhase) -> Ordering

This method returns an [Ordering] between self and other.

#[must_use]fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]fn clamp(self, min: Self, max: Self) -> Self

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl PartialEq<PropagationPhase> for PropagationPhase

fn eq(&self, other: &PropagationPhase) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &PropagationPhase) -> bool

This method tests for !=.

impl PartialOrd<PropagationPhase> for PropagationPhase

fn partial_cmp(&self, other: &PropagationPhase) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &PropagationPhase) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &PropagationPhase) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &PropagationPhase) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &PropagationPhase) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl SetValue for PropagationPhase

unsafe fn set_value(value: &mut Value, this: &Self)

Safety

impl StaticType for PropagationPhase

fn static_type() -> Type

Returns the type identifier of Self.

impl StructuralEq for PropagationPhase

impl StructuralPartialEq for PropagationPhase