c0ab988842
The current implementation has some important issues on Windows. We will reintroduce the feature once we figure them out! I have kept some of the changes in #945, like the new `keyboard::Modifiers` powered by `bitflags`.
30 lines
1.1 KiB
Rust
30 lines
1.1 KiB
Rust
//! Build interactive programs using The Elm Architecture.
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use crate::{Command, Element, Renderer};
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mod state;
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pub use state::State;
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/// The core of a user interface application following The Elm Architecture.
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pub trait Program: Sized {
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/// The graphics backend to use to draw the [`Program`].
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type Renderer: Renderer;
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/// The type of __messages__ your [`Program`] will produce.
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type Message: std::fmt::Debug + Send;
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/// Handles a __message__ and updates the state of the [`Program`].
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///
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/// This is where you define your __update logic__. All the __messages__,
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/// produced by either user interactions or commands, will be handled by
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/// this method.
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///
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/// Any [`Command`] returned will be executed immediately in the
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/// background by shells.
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fn update(&mut self, message: Self::Message) -> Command<Self::Message>;
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/// Returns the widgets to display in the [`Program`].
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///
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/// These widgets can produce __messages__ based on user interaction.
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fn view(&mut self) -> Element<'_, Self::Message, Self::Renderer>;
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}
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