diff options
Diffstat (limited to 'widget/src/lazy/helpers.rs')
-rw-r--r-- | widget/src/lazy/helpers.rs | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/widget/src/lazy/helpers.rs b/widget/src/lazy/helpers.rs new file mode 100644 index 00000000..8ca9cb86 --- /dev/null +++ b/widget/src/lazy/helpers.rs @@ -0,0 +1,47 @@ +use crate::core::{self, Element, Size}; +use crate::lazy::component::{self, Component}; +use crate::lazy::{Lazy, Responsive}; + +use std::hash::Hash; + +/// Creates a new [`Lazy`] widget with the given data `Dependency` and a +/// closure that can turn this data into a widget tree. +pub fn lazy<'a, Message, Renderer, Dependency, View>( + dependency: Dependency, + view: impl Fn(&Dependency) -> View + 'a, +) -> Lazy<'a, Message, Renderer, Dependency, View> +where + Dependency: Hash + 'a, + View: Into<Element<'static, Message, Renderer>>, +{ + Lazy::new(dependency, view) +} + +/// Turns an implementor of [`Component`] into an [`Element`] that can be +/// embedded in any application. +pub fn component<'a, C, Message, Renderer>( + component: C, +) -> Element<'a, Message, Renderer> +where + C: Component<Message, Renderer> + 'a, + C::State: 'static, + Message: 'a, + Renderer: core::Renderer + 'a, +{ + component::view(component) +} + +/// Creates a new [`Responsive`] widget with a closure that produces its +/// contents. +/// +/// The `view` closure will be provided with the current [`Size`] of +/// the [`Responsive`] widget and, therefore, can be used to build the +/// contents of the widget in a responsive way. +pub fn responsive<'a, Message, Renderer>( + f: impl Fn(Size) -> Element<'a, Message, Renderer> + 'a, +) -> Responsive<'a, Message, Renderer> +where + Renderer: core::Renderer, +{ + Responsive::new(f) +} |