zng_ext_input::drag_drop

Struct WeakDragHandle

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pub struct WeakDragHandle(/* private fields */);
Expand description

Weak DragHandle.

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impl WeakDragHandle

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pub fn new() -> Self

New weak handle that does not upgrade.

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pub fn upgrade(&self) -> Option<DragHandle>

Gets the strong handle if it is still subscribed.

Trait Implementations§

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impl Clone for WeakDragHandle

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fn clone(&self) -> WeakDragHandle

Returns a copy of the value. Read more
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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 WeakDragHandle

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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 WeakDragHandle

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fn default() -> WeakDragHandle

Returns the “default value” for a type. Read more
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impl Hash for WeakDragHandle

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

Feeds this value into the given Hasher. Read more
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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 PartialEq for WeakDragHandle

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

Tests for self and other values to be equal, and is used by ==.
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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 Eq for WeakDragHandle

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impl StructuralPartialEq for WeakDragHandle

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impl<T> Any for T
where T: 'static + ?Sized,

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Clone the value.
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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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fn equivalent(&self, key: &K) -> bool

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