Struct vizia::views::Button

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

A simple push button with a contained view.

§Examples

§Button with an action

A button can be used to call an action when interacted with. Usually this is an event that is being emitted when the button is pressed.

Button::new(cx, |cx| Label::new(cx, "Text"))
    .on_press(|ex| ex.emit(AppEvent::Action))

§Button without an action

A button can be used without an action and therefore do nothing when pressed. This is useful for prototyping and testing out the different styling options of a button without having to add an action.

Button::new(cx, |cx| Label::new(cx, "Text"));

§Button containing multiple views

A button can contain more than just a single view or label inside of it. This can for example be done by using a HStack or VStack.

Button::new(
    cx,
    |cx| {
        HStack::new(cx, |cx| {
            Label::new(cx, "Hello");
            Label::new(cx, "World");
        })
    },
);

§Button Variants

The style of a button can be modified using the variant modifier from the ButtonModifiers trait by specifying the ButtonVariant.

Button::new(cx, |cx| Label::new(cx, "Text"))
    .variant(ButtonVariant::Accent);

Implementations§

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impl Button

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pub fn new<C, V>(cx: &mut Context, content: C) -> Handle<'_, Button>
where C: FnOnce(&mut Context) -> Handle<'_, V>, V: View,

Creates a new button with specified content.

§Example
Button::new(cx, |cx| Label::new(cx, "Press Me"));

Trait Implementations§

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impl View for Button

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fn element(&self) -> Option<&'static str>

Specifies a name for the view type which can be used as an element selector in css. Read more
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fn event(&mut self, cx: &mut EventContext<'_>, event: &mut Event)

Handles any events received by the view. Read more
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fn build<F>(self, cx: &mut Context, content: F) -> Handle<'_, Self>
where F: FnOnce(&mut Context),

Builds the view into the tree and returns a handle which can be used to apply style and layout modifiers to the view. Read more
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fn draw(&self, cx: &mut DrawContext<'_>, canvas: &Canvas)

Provides custom drawing for the view. Read more
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fn accessibility(&self, cx: &mut AccessContext<'_>, node: &mut AccessNode)

Auto Trait Implementations§

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impl Freeze for Button

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impl !RefUnwindSafe for Button

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impl !Send for Button

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impl !Sync for Button

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impl Unpin for Button

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impl !UnwindSafe for Button

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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<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> 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> Same for T

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type Output = T

Should always be Self
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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, 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<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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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more