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https://github.com/danbulant/cushy
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e70e92726c
Refs #98 This refactor overhauls the reactive system to move all the reactive methods to traits. The side effect of this change is that now DynamicReader's API is the same as Dynamic's API, but because it only implements Source<T>, DynamicReader does not offer any mutation functions. While it's unfortunate to have more traits to include to use Cushy, this seems like the best option, and it offers a path to try to integrate this into the tuple ForEach/MapEach traits. Unfortunately, my attempt at doing those in this set of changes led to issues specifying generic associated lifetimes for the DynamicGuard. But, I was also in the middle of this larger refactoring, so it might be that a fresh attempt will succeed.
61 lines
1.9 KiB
Rust
61 lines
1.9 KiB
Rust
use std::time::Duration;
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use cushy::animation::{AnimationHandle, AnimationTarget, IntoAnimate, Spawn};
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use cushy::value::{Destination, Dynamic};
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use cushy::widget::MakeWidget;
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use cushy::widgets::progress::Progressable;
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use cushy::{Run, WithClone};
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use figures::units::Lp;
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fn main() -> cushy::Result {
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let animation = Dynamic::new(AnimationHandle::new());
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let value = Dynamic::new(50);
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// Cushy's animation system supports using a `Duration` as a step in
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// animation to create a delay. This can also be used to call a function
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// after a specified amount of time:
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Duration::from_secs(1)
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.on_complete(|| println!("Cushy animations are neat!"))
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.launch();
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"To 0"
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.into_button()
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.on_click(animate_to(&animation, &value, 0))
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.and(
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value
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.clone()
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.progress_bar_to(100)
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.width(Lp::inches(3))
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.centered(),
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)
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.and(
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"To 100"
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.into_button()
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.on_click(animate_to(&animation, &value, 100)),
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)
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.into_columns()
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.run()
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}
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fn animate_to(
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animation: &Dynamic<AnimationHandle>,
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value: &Dynamic<u8>,
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target: u8,
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) -> impl FnMut(()) {
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(animation, value).with_clone(|(animation, value)| {
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move |_| {
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// Here we use spawn to schedule the animation, which returns an
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// `AnimationHandle`. When dropped, the animation associated with
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// the `AnimationHandle` will be cancelled. The effect is that this
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// line of code will ensure we only keep one animation running at
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// all times in this example, despite how many times the buttons are
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// pressed.
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animation.set(
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value
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.transition_to(target)
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.over(Duration::from_secs(1))
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.spawn(),
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)
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}
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})
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}
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