libadwaita

Struct SwipeTracker

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pub struct SwipeTracker { /* private fields */ }
Expand description

A swipe tracker used in Carousel, NavigationView and OverlaySplitView.

The SwipeTracker object can be used for implementing widgets with swipe gestures. It supports touch-based swipes, pointer dragging, and touchpad scrolling.

The widgets will probably want to expose the enabled property. If they expect to use horizontal orientation, reversed can be used for supporting RTL text direction.

§Properties

§allow-long-swipes

Whether to allow swiping for more than one snap point at a time.

If the value is FALSE, each swipe can only move to the adjacent snap points.

Readable | Writeable

§allow-mouse-drag

Whether to allow dragging with mouse pointer.

Readable | Writeable

§allow-window-handle

Whether to allow touchscreen swiping from GtkWindowHandle.

This will make dragging the window impossible.

Readable | Writeable

§enabled

Whether the swipe tracker is enabled.

When it’s not enabled, no events will be processed. Usually widgets will want to expose this via a property.

Readable | Writeable

§lower-overshoot

Whether to allow swiping past the first available snap point.

Readable | Writeable

§reversed

Whether to reverse the swipe direction.

If the swipe tracker is horizontal, it can be used for supporting RTL text direction.

Readable | Writeable

§swipeable

The widget the swipe tracker is attached to.

Readable | Writeable | Construct Only

§upper-overshoot

Whether to allow swiping past the last available snap point.

Readable | Writeable

Orientable

§orientation

The orientation of the orientable.

Readable | Writeable

§Signals

§begin-swipe

This signal is emitted right before a swipe will be started, after the drag threshold has been passed.

§end-swipe

This signal is emitted as soon as the gesture has stopped.

The user is expected to animate the deceleration from the current progress value to @to with an animation using @velocity as the initial velocity, provided in pixels per second. SpringAnimation is usually a good fit for this.

§prepare

This signal is emitted when a possible swipe is detected.

The @direction value can be used to restrict the swipe to a certain direction.

§update-swipe

This signal is emitted every time the progress value changes.

§Implements

[trait@glib::ObjectExt], gtk::prelude::OrientableExt

GLib type: GObject with reference counted clone semantics.

Implementations§

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impl SwipeTracker

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pub fn new(swipeable: &impl IsA<Swipeable>) -> SwipeTracker

Creates a new SwipeTracker for @widget.

§swipeable

a widget to add the tracker on

§Returns

the newly created SwipeTracker

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pub fn builder() -> SwipeTrackerBuilder

Creates a new builder-pattern struct instance to construct SwipeTracker objects.

This method returns an instance of SwipeTrackerBuilder which can be used to create SwipeTracker objects.

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pub fn allows_long_swipes(&self) -> bool

Gets whether to allow swiping for more than one snap point at a time.

§Returns

whether long swipes are allowed

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pub fn allows_mouse_drag(&self) -> bool

Gets whether @self can be dragged with mouse pointer.

§Returns

whether mouse dragging is allowed

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pub fn allows_window_handle(&self) -> bool

Available on crate feature v1_5 only.

Gets whether to allow touchscreen swiping from GtkWindowHandle.

§Returns

whether swiping from window handles is allowed

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pub fn is_enabled(&self) -> bool

Gets whether @self is enabled.

§Returns

whether @self is enabled

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pub fn is_lower_overshoot(&self) -> bool

Available on crate feature v1_4 only.

Gets whether to allow swiping past the first available snap point.

§Returns

whether to allow swiping past the first available snap point

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pub fn is_reversed(&self) -> bool

Gets whether @self is reversing the swipe direction.

§Returns

whether the direction is reversed

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pub fn swipeable(&self) -> Swipeable

Get the widget @self is attached to.

§Returns

the swipeable widget

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pub fn is_upper_overshoot(&self) -> bool

Available on crate feature v1_4 only.

Gets whether to allow swiping past the last available snap point.

§Returns

whether to allow swiping past the last available snap point

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pub fn set_allow_long_swipes(&self, allow_long_swipes: bool)

Sets whether to allow swiping for more than one snap point at a time.

If the value is FALSE, each swipe can only move to the adjacent snap points.

§allow_long_swipes

whether to allow long swipes

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pub fn set_allow_mouse_drag(&self, allow_mouse_drag: bool)

Sets whether @self can be dragged with mouse pointer.

§allow_mouse_drag

whether to allow mouse dragging

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pub fn set_allow_window_handle(&self, allow_window_handle: bool)

Available on crate feature v1_5 only.

Sets whether to allow touchscreen swiping from GtkWindowHandle.

Setting it to TRUE will make dragging the window impossible.

§allow_window_handle

whether to allow swiping from window handles

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pub fn set_enabled(&self, enabled: bool)

Sets whether @self is enabled.

When it’s not enabled, no events will be processed. Usually widgets will want to expose this via a property.

§enabled

whether @self is enabled

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pub fn set_lower_overshoot(&self, overshoot: bool)

Available on crate feature v1_4 only.

Sets whether to allow swiping past the first available snap point.

§overshoot

whether to allow swiping past the first available snap point

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pub fn set_reversed(&self, reversed: bool)

Sets whether to reverse the swipe direction.

If the swipe tracker is horizontal, it can be used for supporting RTL text direction.

§reversed

whether to reverse the swipe direction

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pub fn set_upper_overshoot(&self, overshoot: bool)

Available on crate feature v1_4 only.

Sets whether to allow swiping past the last available snap point.

§overshoot

whether to allow swiping past the last available snap point

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pub fn shift_position(&self, delta: f64)

Moves the current progress value by @delta.

This can be used to adjust the current position if snap points move during the gesture.

§delta

the position delta

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pub fn connect_begin_swipe<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

This signal is emitted right before a swipe will be started, after the drag threshold has been passed.

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pub fn connect_end_swipe<F: Fn(&Self, f64, f64) + 'static>( &self, f: F, ) -> SignalHandlerId

This signal is emitted as soon as the gesture has stopped.

The user is expected to animate the deceleration from the current progress value to @to with an animation using @velocity as the initial velocity, provided in pixels per second. SpringAnimation is usually a good fit for this.

§velocity

the velocity of the swipe

§to

the progress value to animate to

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pub fn connect_prepare<F: Fn(&Self, NavigationDirection) + 'static>( &self, f: F, ) -> SignalHandlerId

This signal is emitted when a possible swipe is detected.

The @direction value can be used to restrict the swipe to a certain direction.

§direction

the direction of the swipe

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pub fn connect_update_swipe<F: Fn(&Self, f64) + 'static>( &self, f: F, ) -> SignalHandlerId

This signal is emitted every time the progress value changes.

§progress

the current animation progress value

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pub fn connect_allow_long_swipes_notify<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

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pub fn connect_allow_mouse_drag_notify<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

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pub fn connect_allow_window_handle_notify<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

Available on crate feature v1_5 only.
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pub fn connect_enabled_notify<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

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pub fn connect_lower_overshoot_notify<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

Available on crate feature v1_4 only.
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pub fn connect_reversed_notify<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

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pub fn connect_upper_overshoot_notify<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

Available on crate feature v1_4 only.

Trait Implementations§

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impl Clone for SwipeTracker

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fn clone(&self) -> Self

Makes a clone of this shared reference.

This increments the strong reference count of the object. Dropping the object will decrement it again.

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

Performs copy-assignment from source. Read more
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impl Debug for SwipeTracker

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

Formats the value using the given formatter. Read more
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impl Default for SwipeTracker

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl HasParamSpec for SwipeTracker

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type ParamSpec = ParamSpecObject

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type SetValue = SwipeTracker

Preferred value to be used as setter for the associated ParamSpec.
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type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, SwipeTracker>

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fn param_spec_builder() -> Self::BuilderFn

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impl Hash for SwipeTracker

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

Hashes the memory address of this object.

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

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for SwipeTracker

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

Comparison for two GObjects.

Compares the memory addresses of the provided objects.

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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
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impl ParentClassIs for SwipeTracker

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impl<OT: ObjectType> PartialEq<OT> for SwipeTracker

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

Equality for two GObjects.

Two GObjects are equal if their memory addresses are equal.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<OT: ObjectType> PartialOrd<OT> for SwipeTracker

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

Partial comparison for two GObjects.

Compares the memory addresses of the provided objects.

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

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl StaticType for SwipeTracker

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fn static_type() -> Type

Returns the type identifier of Self.
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impl Eq for SwipeTracker

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impl IsA<Orientable> for SwipeTracker

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🔬This is a nightly-only experimental API. (clone_to_uninit)
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impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GSList> for T

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unsafe fn from_glib_none_num_as_vec(ptr: *mut GSList, num: usize) -> Vec<T>

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unsafe fn from_glib_full_num_as_vec(ptr: *mut GSList, num: usize) -> Vec<T>

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unsafe fn from_glib_none_as_vec(ptr: *const GList) -> Vec<T>

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unsafe fn from_glib_container_as_vec(_: *const GList) -> Vec<T>

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unsafe fn from_glib_none_as_vec(ptr: *const GPtrArray) -> Vec<T>

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unsafe fn from_glib_container_as_vec(_: *const GPtrArray) -> Vec<T>

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unsafe fn from_glib_none_as_vec(ptr: *const GSList) -> Vec<T>

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unsafe fn from_glib_full_as_vec(_: *const GSList) -> Vec<T>

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impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GList> for T

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unsafe fn from_glib_none_as_vec(ptr: *mut GList) -> Vec<T>

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unsafe fn from_glib_container_as_vec(ptr: *mut GList) -> Vec<T>

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unsafe fn from_glib_full_as_vec(ptr: *mut GList) -> Vec<T>

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unsafe fn from_glib_none_as_vec(ptr: *mut GPtrArray) -> Vec<T>

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unsafe fn from_glib_full_as_vec(ptr: *mut GPtrArray) -> Vec<T>

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impl<O> GObjectPropertyExpressionExt for O
where O: IsA<Object>,

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fn property_expression(&self, property_name: &str) -> PropertyExpression

Create an expression looking up an object’s property.
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fn property_expression_weak(&self, property_name: &str) -> PropertyExpression

Create an expression looking up an object’s property with a weak reference.
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fn this_expression(property_name: &str) -> PropertyExpression

Create an expression looking up a property in the bound this object.
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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where T: Into<Value>,

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where T: ObjectType,

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fn is<U>(&self) -> bool
where U: StaticType,

Returns true if the object is an instance of (can be cast to) T.
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fn type_(&self) -> Type

Returns the type of the object.
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fn object_class(&self) -> &Class<Object>

Returns the ObjectClass of the object. Read more
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fn class(&self) -> &Class<T>
where T: IsClass,

Returns the class of the object.
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where U: IsClass,

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where U: IsInterface,

Returns the interface T of the object. Read more
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fn set_property(&self, property_name: &str, value: impl Into<Value>)

Sets the property property_name of the object to value value. Read more
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fn set_property_from_value(&self, property_name: &str, value: &Value)

Sets the property property_name of the object to value value. Read more
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fn set_properties(&self, property_values: &[(&str, &dyn ToValue)])

Sets multiple properties of the object at once. Read more
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fn set_properties_from_value(&self, property_values: &[(&str, Value)])

Sets multiple properties of the object at once. Read more
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fn property<V>(&self, property_name: &str) -> V
where V: for<'b> FromValue<'b> + 'static,

Gets the property property_name of the object and cast it to the type V. Read more
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fn property_value(&self, property_name: &str) -> Value

Gets the property property_name of the object. Read more
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fn has_property(&self, property_name: &str, type_: Option<Type>) -> bool

Check if the object has a property property_name of the given type_. Read more
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fn property_type(&self, property_name: &str) -> Option<Type>

Get the type of the property property_name of this object. Read more
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fn find_property(&self, property_name: &str) -> Option<ParamSpec>

Get the ParamSpec of the property property_name of this object.
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fn list_properties(&self) -> PtrSlice<ParamSpec>

Return all ParamSpec of the properties of this object.
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fn freeze_notify(&self) -> PropertyNotificationFreezeGuard

Freeze all property notifications until the return guard object is dropped. Read more
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unsafe fn set_qdata<QD>(&self, key: Quark, value: QD)
where QD: 'static,

Set arbitrary data on this object with the given key. Read more
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unsafe fn qdata<QD>(&self, key: Quark) -> Option<NonNull<QD>>
where QD: 'static,

Return previously set arbitrary data of this object with the given key. Read more
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unsafe fn steal_qdata<QD>(&self, key: Quark) -> Option<QD>
where QD: 'static,

Retrieve previously set arbitrary data of this object with the given key. Read more
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unsafe fn set_data<QD>(&self, key: &str, value: QD)
where QD: 'static,

Set arbitrary data on this object with the given key. Read more
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unsafe fn data<QD>(&self, key: &str) -> Option<NonNull<QD>>
where QD: 'static,

Return previously set arbitrary data of this object with the given key. Read more
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unsafe fn steal_data<QD>(&self, key: &str) -> Option<QD>
where QD: 'static,

Retrieve previously set arbitrary data of this object with the given key. Read more
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fn block_signal(&self, handler_id: &SignalHandlerId)

Block a given signal handler. Read more
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fn unblock_signal(&self, handler_id: &SignalHandlerId)

Unblock a given signal handler.
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fn stop_signal_emission(&self, signal_id: SignalId, detail: Option<Quark>)

Stop emission of the currently emitted signal.
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fn stop_signal_emission_by_name(&self, signal_name: &str)

Stop emission of the currently emitted signal by the (possibly detailed) signal name.
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fn connect<F>( &self, signal_name: &str, after: bool, callback: F, ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,

Connect to the signal signal_name on this object. Read more
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fn connect_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F, ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,

Connect to the signal signal_id on this object. Read more
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fn connect_local<F>( &self, signal_name: &str, after: bool, callback: F, ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value> + 'static,

Connect to the signal signal_name on this object. Read more
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fn connect_local_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F, ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value> + 'static,

Connect to the signal signal_id on this object. Read more
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unsafe fn connect_unsafe<F>( &self, signal_name: &str, after: bool, callback: F, ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value>,

Connect to the signal signal_name on this object. Read more
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unsafe fn connect_unsafe_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F, ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value>,

Connect to the signal signal_id on this object. Read more
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fn connect_closure( &self, signal_name: &str, after: bool, closure: RustClosure, ) -> SignalHandlerId

Connect a closure to the signal signal_name on this object. Read more
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fn connect_closure_id( &self, signal_id: SignalId, details: Option<Quark>, after: bool, closure: RustClosure, ) -> SignalHandlerId

Connect a closure to the signal signal_id on this object. Read more
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fn watch_closure(&self, closure: &impl AsRef<Closure>)

Limits the lifetime of closure to the lifetime of the object. When the object’s reference count drops to zero, the closure will be invalidated. An invalidated closure will ignore any calls to invoke_with_values, or invoke when using Rust closures.
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fn emit<R>(&self, signal_id: SignalId, args: &[&dyn ToValue]) -> R

Emit signal by signal id. Read more
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fn emit_with_values(&self, signal_id: SignalId, args: &[Value]) -> Option<Value>

Same as Self::emit but takes Value for the arguments.
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fn emit_by_name<R>(&self, signal_name: &str, args: &[&dyn ToValue]) -> R

Emit signal by its name. Read more
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fn emit_by_name_with_values( &self, signal_name: &str, args: &[Value], ) -> Option<Value>

Emit signal by its name. Read more
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fn emit_by_name_with_details<R>( &self, signal_name: &str, details: Quark, args: &[&dyn ToValue], ) -> R

Emit signal by its name with details. Read more
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fn emit_by_name_with_details_and_values( &self, signal_name: &str, details: Quark, args: &[Value], ) -> Option<Value>

Emit signal by its name with details. Read more
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fn emit_with_details<R>( &self, signal_id: SignalId, details: Quark, args: &[&dyn ToValue], ) -> R

Emit signal by signal id with details. Read more
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fn emit_with_details_and_values( &self, signal_id: SignalId, details: Quark, args: &[Value], ) -> Option<Value>

Emit signal by signal id with details. Read more
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fn disconnect(&self, handler_id: SignalHandlerId)

Disconnect a previously connected signal handler.
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fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId
where F: Fn(&T, &ParamSpec) + Send + Sync + 'static,

Connect to the notify signal of the object. Read more
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fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId
where F: Fn(&T, &ParamSpec) + 'static,

Connect to the notify signal of the object. Read more
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unsafe fn connect_notify_unsafe<F>( &self, name: Option<&str>, f: F, ) -> SignalHandlerId
where F: Fn(&T, &ParamSpec),

Connect to the notify signal of the object. Read more
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fn notify(&self, property_name: &str)

Notify that the given property has changed its value. Read more
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fn notify_by_pspec(&self, pspec: &ParamSpec)

Notify that the given property has changed its value. Read more
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fn downgrade(&self) -> WeakRef<T>

Downgrade this object to a weak reference.
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fn add_weak_ref_notify<F>(&self, f: F) -> WeakRefNotify<T>
where F: FnOnce() + Send + 'static,

Add a callback to be notified when the Object is disposed.
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fn add_weak_ref_notify_local<F>(&self, f: F) -> WeakRefNotify<T>
where F: FnOnce() + 'static,

Add a callback to be notified when the Object is disposed. Read more
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fn bind_property<'a, 'f, 't, O>( &'a self, source_property: &'a str, target: &'a O, target_property: &'a str, ) -> BindingBuilder<'a, 'f, 't>
where O: ObjectType,

Bind property source_property on this object to the target_property on the target object. Read more
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fn ref_count(&self) -> u32

Returns the strong reference count of this object.
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unsafe fn run_dispose(&self)

Runs the dispose mechanism of the object. Read more
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impl<O> OrientableExt for O
where O: IsA<Orientable>,

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fn orientation(&self) -> Orientation

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fn set_orientation(&self, orientation: Orientation)

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fn connect_orientation_notify<F>(&self, f: F) -> SignalHandlerId
where F: Fn(&Self) + 'static,

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impl<T> Property for T
where T: HasParamSpec,

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type Value = T

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impl<T> PropertyGet for T
where T: HasParamSpec,

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type Value = T

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fn get<R, F>(&self, f: F) -> R
where F: Fn(&<T as PropertyGet>::Value) -> R,

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impl<T> StaticTypeExt for T
where T: StaticType,

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fn ensure_type()

Ensures that the type has been registered with the type system.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> TransparentType for T

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T> TryFromClosureReturnValue for T
where T: for<'a> FromValue<'a> + StaticType + 'static,

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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<'a, T, C, E> FromValueOptional<'a> for T
where T: FromValue<'a, Checker = C>, C: ValueTypeChecker<Error = ValueTypeMismatchOrNoneError<E>>, E: Error + Send + 'static,

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impl<Super, Sub> MayDowncastTo<Sub> for Super
where Super: IsA<Super>, Sub: IsA<Super>,