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AccessAction

Enum AccessAction 

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pub enum AccessAction {
Show 13 variants Click, Focus, Blur, SetValue, Increment, Decrement, ScrollIntoView, ScrollUp, ScrollDown, ScrollLeft, ScrollRight, SetTextSelection, ReplaceSelectedText,
}
Expand description

What assistive technology can ask of a node. Each node advertises the subset it supports (AccessNode::actions), and a request for one arrives as crate::InputEvent::Access.

Variants§

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Click

Activate: the node’s on_click payload is emitted (a window button issues its command; an editor or key sink takes focus). On a node behind the frame’s modal it is the press outside: a dismiss on the modal, nothing on the node.

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Focus

Give the node keyboard focus — any focusable node (an editor, a key sink, a control, a focusable box); it shows, as after Tab.

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Blur

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SetValue

Replace an editor’s text (AccessRequest::value); a changed event follows when it differs. On a custom editor it arrives as {kind="access", action="setValue", text, tag}.

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Increment

Nudge a slider. The core cannot know what a step means, so these reach the app as {kind="access", action, tag} on the node.

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Decrement

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ScrollIntoView

Scroll the nearest scrolling ancestor so the node is visible.

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ScrollUp

Scroll a scroll view by most of a page.

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ScrollDown

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ScrollLeft

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ScrollRight

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SetTextSelection

Move an editor’s caret and selection (AccessRequest::anchor / focus). On a custom editor it arrives as {kind="access", action="setTextSelection", anchor={line, offset}, focus={line, offset}, tag}.

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ReplaceSelectedText

Type over an editor’s selection (AccessRequest::value). On a custom editor: {kind="access", action="replaceSelectedText", text, tag}.

Implementations§

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impl AccessAction

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pub const ALL: [AccessAction; 13]

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pub fn bit(self) -> u32

The action’s bit in AccessNode::actions.

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pub fn name(self) -> &'static str

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pub fn parse(name: &str) -> Option<AccessAction>

Trait Implementations§

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impl Clone for AccessAction

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for AccessAction

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impl Debug for AccessAction

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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 Eq for AccessAction

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impl Hash for AccessAction

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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 AccessAction

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl StructuralPartialEq for AccessAction

Auto Trait Implementations§

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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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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impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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

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type Error = !

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

Performs the conversion.
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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.