Struct LazyView 

pub struct LazyView<T> {
    pub id: ViewId,
    pub content: T,
}

A wrapper type for lazy view construction.

LazyView<T> wraps a value that will eventually be converted into a View, but creates its ViewId eagerly. This allows decorators to be applied before the actual view is constructed.

Example

use floem::views::*;
use floem::{IntoView, LazyView};

// The ViewId is created when LazyView is constructed,
// but the Label is only created when into_view() is called
let lazy = LazyView::new("Hello");
let view = lazy.style(|s| s.padding(10.0)).into_view();

Fields

id: ViewId

The ViewId created eagerly for this lazy view.

content: T

The content that will be converted into a view.

Implementations

impl<T> LazyView<T>

pub fn new(content: T) -> Self

Creates a new LazyView wrapper with an eagerly-created ViewId.

pub fn with_id(id: ViewId, content: T) -> Self

Creates a new LazyView wrapper with an existing ViewId.

Trait Implementations

impl<T> HasViewId for LazyView<T>

fn view_id(&self) -> ViewId

Returns the ViewId associated with this value.

impl IntoView for LazyView<&str>

type V = Label

The final View type this converts to.

type Intermediate = LazyView<&str>

Intermediate type that has a ViewId before full view construction.

fn into_intermediate(self) -> Self::Intermediate

Converts to the intermediate form which has a ViewId.

fn into_view(self) -> Self::V

Converts the value into a View.

fn into_any(self) -> AnyView

Converts the value into a AnyView.

impl IntoView for LazyView<()>

type V = Empty

The final View type this converts to.

type Intermediate = LazyView<()>

Intermediate type that has a ViewId before full view construction.

fn into_intermediate(self) -> Self::Intermediate

Converts to the intermediate form which has a ViewId.

fn into_view(self) -> Self::V

Converts the value into a View.

fn into_any(self) -> AnyView

Converts the value into a AnyView.

impl<A: IntoView + 'static> IntoView for LazyView<(A,)>

type V = Stack

The final View type this converts to.

type Intermediate = LazyView<(A,)>

Intermediate type that has a ViewId before full view construction.

fn into_intermediate(self) -> Self::Intermediate

Converts to the intermediate form which has a ViewId.

fn into_view(self) -> Self::V

Converts the value into a View.

fn into_any(self) -> AnyView

Converts the value into a AnyView.

impl<A: IntoView + 'static, B: IntoView + 'static> IntoView for LazyView<(A, B)>

type V = Stack

The final View type this converts to.

type Intermediate = LazyView<(A, B)>

Intermediate type that has a ViewId before full view construction.

fn into_intermediate(self) -> Self::Intermediate

Converts to the intermediate form which has a ViewId.

fn into_view(self) -> Self::V

Converts the value into a View.

fn into_any(self) -> AnyView

Converts the value into a AnyView.

impl<A: IntoView + 'static, B: IntoView + 'static, C: IntoView + 'static> IntoView for LazyView<(A, B, C)>

type V = Stack

The final View type this converts to.

type Intermediate = LazyView<(A, B, C)>

Intermediate type that has a ViewId before full view construction.

fn into_intermediate(self) -> Self::Intermediate

Converts to the intermediate form which has a ViewId.

fn into_view(self) -> Self::V

Converts the value into a View.

fn into_any(self) -> AnyView

Converts the value into a AnyView.

impl<A: IntoView + 'static, B: IntoView + 'static, C: IntoView + 'static, D: IntoView + 'static> IntoView for LazyView<(A, B, C, D)>

type V = Stack

The final View type this converts to.

type Intermediate = LazyView<(A, B, C, D)>

Intermediate type that has a ViewId before full view construction.

fn into_intermediate(self) -> Self::Intermediate

Converts to the intermediate form which has a ViewId.

fn into_view(self) -> Self::V

Converts the value into a View.

fn into_any(self) -> AnyView

Converts the value into a AnyView.

impl<A: IntoView + 'static, B: IntoView + 'static, C: IntoView + 'static, D: IntoView + 'static, E: IntoView + 'static> IntoView for LazyView<(A, B, C, D, E)>

type V = Stack

The final View type this converts to.

type Intermediate = LazyView<(A, B, C, D, E)>

Intermediate type that has a ViewId before full view construction.

fn into_intermediate(self) -> Self::Intermediate

Converts to the intermediate form which has a ViewId.

fn into_view(self) -> Self::V

Converts the value into a View.

fn into_any(self) -> AnyView

Converts the value into a AnyView.

impl<A: IntoView + 'static, B: IntoView + 'static, C: IntoView + 'static, D: IntoView + 'static, E: IntoView + 'static, F: IntoView + 'static> IntoView for LazyView<(A, B, C, D, E, F)>

type V = Stack

The final View type this converts to.

type Intermediate = LazyView<(A, B, C, D, E, F)>

Intermediate type that has a ViewId before full view construction.

fn into_intermediate(self) -> Self::Intermediate

Converts to the intermediate form which has a ViewId.

fn into_view(self) -> Self::V

Converts the value into a View.

fn into_any(self) -> AnyView

Converts the value into a AnyView.

impl<A: IntoView + 'static, B: IntoView + 'static, C: IntoView + 'static, D: IntoView + 'static, E: IntoView + 'static, F: IntoView + 'static, G: IntoView + 'static> IntoView for LazyView<(A, B, C, D, E, F, G)>

type V = Stack

The final View type this converts to.

type Intermediate = LazyView<(A, B, C, D, E, F, G)>

Intermediate type that has a ViewId before full view construction.

fn into_intermediate(self) -> Self::Intermediate

Converts to the intermediate form which has a ViewId.

fn into_view(self) -> Self::V

Converts the value into a View.

fn into_any(self) -> AnyView

Converts the value into a AnyView.

impl<A: IntoView + 'static, B: IntoView + 'static, C: IntoView + 'static, D: IntoView + 'static, E: IntoView + 'static, F: IntoView + 'static, G: IntoView + 'static, H: IntoView + 'static> IntoView for LazyView<(A, B, C, D, E, F, G, H)>

type V = Stack

The final View type this converts to.

type Intermediate = LazyView<(A, B, C, D, E, F, G, H)>

Intermediate type that has a ViewId before full view construction.

fn into_intermediate(self) -> Self::Intermediate

Converts to the intermediate form which has a ViewId.

fn into_view(self) -> Self::V

Converts the value into a View.

fn into_any(self) -> AnyView

Converts the value into a AnyView.

impl<A: IntoView + 'static, B: IntoView + 'static, C: IntoView + 'static, D: IntoView + 'static, E: IntoView + 'static, F: IntoView + 'static, G: IntoView + 'static, H: IntoView + 'static, I: IntoView + 'static> IntoView for LazyView<(A, B, C, D, E, F, G, H, I)>

type V = Stack

The final View type this converts to.

type Intermediate = LazyView<(A, B, C, D, E, F, G, H, I)>

Intermediate type that has a ViewId before full view construction.

fn into_intermediate(self) -> Self::Intermediate

Converts to the intermediate form which has a ViewId.

fn into_view(self) -> Self::V

Converts the value into a View.

fn into_any(self) -> AnyView

Converts the value into a AnyView.

impl<A: IntoView + 'static, B: IntoView + 'static, C: IntoView + 'static, D: IntoView + 'static, E: IntoView + 'static, F: IntoView + 'static, G: IntoView + 'static, H: IntoView + 'static, I: IntoView + 'static, J: IntoView + 'static> IntoView for LazyView<(A, B, C, D, E, F, G, H, I, J)>

type V = Stack

The final View type this converts to.

type Intermediate = LazyView<(A, B, C, D, E, F, G, H, I, J)>

Intermediate type that has a ViewId before full view construction.

fn into_intermediate(self) -> Self::Intermediate

Converts to the intermediate form which has a ViewId.

fn into_view(self) -> Self::V

Converts the value into a View.

fn into_any(self) -> AnyView

Converts the value into a AnyView.

impl<A: IntoView + 'static, B: IntoView + 'static, C: IntoView + 'static, D: IntoView + 'static, E: IntoView + 'static, F: IntoView + 'static, G: IntoView + 'static, H: IntoView + 'static, I: IntoView + 'static, J: IntoView + 'static, K: IntoView + 'static> IntoView for LazyView<(A, B, C, D, E, F, G, H, I, J, K)>

type V = Stack

The final View type this converts to.

type Intermediate = LazyView<(A, B, C, D, E, F, G, H, I, J, K)>

Intermediate type that has a ViewId before full view construction.

fn into_intermediate(self) -> Self::Intermediate

Converts to the intermediate form which has a ViewId.

fn into_view(self) -> Self::V

Converts the value into a View.

fn into_any(self) -> AnyView

Converts the value into a AnyView.

impl<A: IntoView + 'static, B: IntoView + 'static, C: IntoView + 'static, D: IntoView + 'static, E: IntoView + 'static, F: IntoView + 'static, G: IntoView + 'static, H: IntoView + 'static, I: IntoView + 'static, J: IntoView + 'static, K: IntoView + 'static, L: IntoView + 'static> IntoView for LazyView<(A, B, C, D, E, F, G, H, I, J, K, L)>

type V = Stack

The final View type this converts to.

type Intermediate = LazyView<(A, B, C, D, E, F, G, H, I, J, K, L)>

Intermediate type that has a ViewId before full view construction.

fn into_intermediate(self) -> Self::Intermediate

Converts to the intermediate form which has a ViewId.

fn into_view(self) -> Self::V

Converts the value into a View.

fn into_any(self) -> AnyView

Converts the value into a AnyView.

impl<A: IntoView + 'static, B: IntoView + 'static, C: IntoView + 'static, D: IntoView + 'static, E: IntoView + 'static, F: IntoView + 'static, G: IntoView + 'static, H: IntoView + 'static, I: IntoView + 'static, J: IntoView + 'static, K: IntoView + 'static, L: IntoView + 'static, M: IntoView + 'static> IntoView for LazyView<(A, B, C, D, E, F, G, H, I, J, K, L, M)>

type V = Stack

The final View type this converts to.

type Intermediate = LazyView<(A, B, C, D, E, F, G, H, I, J, K, L, M)>

Intermediate type that has a ViewId before full view construction.

fn into_intermediate(self) -> Self::Intermediate

Converts to the intermediate form which has a ViewId.

fn into_view(self) -> Self::V

Converts the value into a View.

fn into_any(self) -> AnyView

Converts the value into a AnyView.

impl<A: IntoView + 'static, B: IntoView + 'static, C: IntoView + 'static, D: IntoView + 'static, E: IntoView + 'static, F: IntoView + 'static, G: IntoView + 'static, H: IntoView + 'static, I: IntoView + 'static, J: IntoView + 'static, K: IntoView + 'static, L: IntoView + 'static, M: IntoView + 'static, N: IntoView + 'static> IntoView for LazyView<(A, B, C, D, E, F, G, H, I, J, K, L, M, N)>

type V = Stack

The final View type this converts to.

type Intermediate = LazyView<(A, B, C, D, E, F, G, H, I, J, K, L, M, N)>

Intermediate type that has a ViewId before full view construction.

fn into_intermediate(self) -> Self::Intermediate

Converts to the intermediate form which has a ViewId.

fn into_view(self) -> Self::V

Converts the value into a View.

fn into_any(self) -> AnyView

Converts the value into a AnyView.

impl<A: IntoView + 'static, B: IntoView + 'static, C: IntoView + 'static, D: IntoView + 'static, E: IntoView + 'static, F: IntoView + 'static, G: IntoView + 'static, H: IntoView + 'static, I: IntoView + 'static, J: IntoView + 'static, K: IntoView + 'static, L: IntoView + 'static, M: IntoView + 'static, N: IntoView + 'static, O: IntoView + 'static> IntoView for LazyView<(A, B, C, D, E, F, G, H, I, J, K, L, M, N, O)>

type V = Stack

The final View type this converts to.

type Intermediate = LazyView<(A, B, C, D, E, F, G, H, I, J, K, L, M, N, O)>

Intermediate type that has a ViewId before full view construction.

fn into_intermediate(self) -> Self::Intermediate

Converts to the intermediate form which has a ViewId.

fn into_view(self) -> Self::V

Converts the value into a View.

fn into_any(self) -> AnyView

Converts the value into a AnyView.

impl<A: IntoView + 'static, B: IntoView + 'static, C: IntoView + 'static, D: IntoView + 'static, E: IntoView + 'static, F: IntoView + 'static, G: IntoView + 'static, H: IntoView + 'static, I: IntoView + 'static, J: IntoView + 'static, K: IntoView + 'static, L: IntoView + 'static, M: IntoView + 'static, N: IntoView + 'static, O: IntoView + 'static, P: IntoView + 'static> IntoView for LazyView<(A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P)>

type V = Stack

The final View type this converts to.

type Intermediate = LazyView<(A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P)>

Intermediate type that has a ViewId before full view construction.

fn into_intermediate(self) -> Self::Intermediate

Converts to the intermediate form which has a ViewId.

fn into_view(self) -> Self::V

Converts the value into a View.

fn into_any(self) -> AnyView

Converts the value into a AnyView.

impl IntoView for LazyView<String>

type V = Label

The final View type this converts to.

type Intermediate = LazyView<String>

Intermediate type that has a ViewId before full view construction.

fn into_intermediate(self) -> Self::Intermediate

Converts to the intermediate form which has a ViewId.

fn into_view(self) -> Self::V

Converts the value into a View.

fn into_any(self) -> AnyView

Converts the value into a AnyView.

impl<IV: IntoView + 'static> IntoView for LazyView<Vec<IV>>

type V = Stack

The final View type this converts to.

type Intermediate = LazyView<Vec<IV>>

Intermediate type that has a ViewId before full view construction.

fn into_intermediate(self) -> Self::Intermediate

Converts to the intermediate form which has a ViewId.

fn into_view(self) -> Self::V

Converts the value into a View.

fn into_any(self) -> AnyView

Converts the value into a AnyView.

impl IntoView for LazyView<i32>

type V = Label

The final View type this converts to.

type Intermediate = LazyView<i32>

Intermediate type that has a ViewId before full view construction.

fn into_intermediate(self) -> Self::Intermediate

Converts to the intermediate form which has a ViewId.

fn into_view(self) -> Self::V

Converts the value into a View.

fn into_any(self) -> AnyView

Converts the value into a AnyView.

impl IntoView for LazyView<usize>

type V = Label

The final View type this converts to.

type Intermediate = LazyView<usize>

Intermediate type that has a ViewId before full view construction.

fn into_intermediate(self) -> Self::Intermediate

Converts to the intermediate form which has a ViewId.

fn into_view(self) -> Self::V

Converts the value into a View.

fn into_any(self) -> AnyView

Converts the value into a AnyView.