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Chord

Struct Chord 

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pub struct Chord {
    pub key: Key,
    pub mods: Modifiers,
}
Expand description

The keyboard vocabulary app code names: a Chord bound with shortcuts in a ShortcutScope, the ShortcutHint a palette lists (RenderRoot::shortcut_hints, labels rendered with Chord::display), the FocusRingPolicy deciding when a Tab-focused control shows its ring, and the OverlayKeys class that makes a floated surface modal for keys. Lifted flat for EditCommand’s reason. A key plus the exact modifier set it must be pressed with.

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§key: Key

A character key is stored lowercased and matched case-insensitively.

§mods: Modifiers

Implementations§

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impl Chord

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pub fn new(key: Key, mods: Modifiers) -> Chord

A chord from its parts; a character key is lowercased so it matches either case, and a Shift-insensitive symbol key (see Chord::matches) drops mods.shift.

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pub fn parse(spec: &str) -> Result<Chord, ChordParseError>

Parse "Mod+K", "Shift+Tab", "Ctrl+Shift+P", "1", "F2": +-separated, case-insensitive modifiers then one key. Mod is Command on macOS/iOS and Ctrl elsewhere, chosen at compile time, so a web build running on a Mac maps it to Ctrl. A symbol key (+, ?, !) ignores Shift, so "Shift+?" parses as "?"; spell Shift+1 as !.

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pub fn matches(&self, event: &KeyEvent) -> bool

Whether event presses this chord: the same key (characters case-insensitively) and exactly the same modifiers. A symbol key (a character that is neither alphanumeric nor whitespace) ignores event.modifiers.shift, because shells report Shift for the keys that need it; ctrl, alt and meta still compare. An auto-repeat matches like a fresh press.

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pub fn display(&self) -> String

The chord as a hint surface shows it, by Mod’s compile-time rule: "⌘K", "⇧⌘P" on macOS/iOS (symbols in ⌃⌥⇧⌘ order, unseparated), "Ctrl+K", "Ctrl+Shift+P" elsewhere.

Trait Implementations§

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impl Clone for Chord

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fn clone(&self) -> Chord

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 Debug for Chord

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

Formats the value using the given formatter. Read more
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impl Eq for Chord

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impl PartialEq for Chord

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fn eq(&self, other: &Chord) -> 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 Chord

Auto Trait Implementations§

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impl Freeze for Chord

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impl RefUnwindSafe for Chord

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impl Send for Chord

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impl Sync for Chord

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impl Unpin for Chord

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impl UnsafeUnpin for Chord

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impl UnwindSafe for Chord

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<T> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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impl<T> DowncastSync for T
where T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Send + Sync> ⓘ

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.
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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> ErasedDestructor for T
where T: 'static,

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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self> ⓘ

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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, S> SimdFrom<T, S> for T
where S: Simd,

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fn simd_from(_simd: S, value: T) -> T

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impl<F, T, S> SimdInto<T, S> for F
where T: SimdFrom<F, S>, S: Simd,

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fn simd_into(self, simd: S) -> T

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impl<T> StorageAccess<T> for T

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fn as_borrowed(&self) -> &T

Borrows the value.
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fn into_taken(self) -> T

Takes the value.
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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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Performs the conversion.
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impl<T> WasmNotSend for T
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impl<T> WasmNotSync for T
where T: Sync,

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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