Replace stateful widgets with new `iced_pure` API

1 files changed, 0 insertions, 195 deletions

diff --git a/src/pure/application.rs b/src/pure/application.rs
deleted file mode 100644
index 396854ad..00000000
--- a/src/pure/application.rs
+++ /dev/null
@@ -1,195 +0,0 @@
-//! Build interactive cross-platform applications.
-use crate::pure::{self, Pure};
-use crate::window;
-use crate::{Command, Executor, Settings, Subscription};
-
-pub use iced_native::application::StyleSheet;
-
-/// A pure version of [`Application`].
-///
-/// Unlike the impure version, the `view` method of this trait takes an
-/// immutable reference to `self` and returns a pure [`Element`].
-///
-/// [`Application`]: crate::Application
-/// [`Element`]: pure::Element
-pub trait Application: Sized {
-    /// The [`Executor`] that will run commands and subscriptions.
-    ///
-    /// The [default executor] can be a good starting point!
-    ///
-    /// [`Executor`]: Self::Executor
-    /// [default executor]: crate::executor::Default
-    type Executor: Executor;
-
-    /// The type of __messages__ your [`Application`] will produce.
-    type Message: std::fmt::Debug + Send;
-
-    /// The theme of your [`Application`].
-    type Theme: Default + StyleSheet;
-
-    /// The data needed to initialize your [`Application`].
-    type Flags;
-
-    /// Initializes the [`Application`] with the flags provided to
-    /// [`run`] as part of the [`Settings`].
-    ///
-    /// Here is where you should return the initial state of your app.
-    ///
-    /// Additionally, you can return a [`Command`] if you need to perform some
-    /// async action in the background on startup. This is useful if you want to
-    /// load state from a file, perform an initial HTTP request, etc.
-    ///
-    /// [`run`]: Self::run
-    fn new(flags: Self::Flags) -> (Self, Command<Self::Message>);
-
-    /// Returns the current title of the [`Application`].
-    ///
-    /// This title can be dynamic! The runtime will automatically update the
-    /// title of your application when necessary.
-    fn title(&self) -> String;
-
-    /// Handles a __message__ and updates the state of the [`Application`].
-    ///
-    /// This is where you define your __update logic__. All the __messages__,
-    /// produced by either user interactions or commands, will be handled by
-    /// this method.
-    ///
-    /// Any [`Command`] returned will be executed immediately in the background.
-    fn update(&mut self, message: Self::Message) -> Command<Self::Message>;
-
-    /// Returns the widgets to display in the [`Application`].
-    ///
-    /// These widgets can produce __messages__ based on user interaction.
-    fn view(
-        &self,
-    ) -> pure::Element<'_, Self::Message, crate::Renderer<Self::Theme>>;
-
-    /// Returns the current [`Theme`] of the [`Application`].
-    fn theme(&self) -> Self::Theme {
-        Self::Theme::default()
-    }
-
-    /// Returns the event [`Subscription`] for the current state of the
-    /// application.
-    ///
-    /// A [`Subscription`] will be kept alive as long as you keep returning it,
-    /// and the __messages__ produced will be handled by
-    /// [`update`](#tymethod.update).
-    ///
-    /// By default, this method returns an empty [`Subscription`].
-    fn subscription(&self) -> Subscription<Self::Message> {
-        Subscription::none()
-    }
-
-    /// Returns the current [`Application`] mode.
-    ///
-    /// The runtime will automatically transition your application if a new mode
-    /// is returned.
-    ///
-    /// Currently, the mode only has an effect in native platforms.
-    ///
-    /// By default, an application will run in windowed mode.
-    fn mode(&self) -> window::Mode {
-        window::Mode::Windowed
-    }
-
-    /// Returns the scale factor of the [`Application`].
-    ///
-    /// It can be used to dynamically control the size of the UI at runtime
-    /// (i.e. zooming).
-    ///
-    /// For instance, a scale factor of `2.0` will make widgets twice as big,
-    /// while a scale factor of `0.5` will shrink them to half their size.
-    ///
-    /// By default, it returns `1.0`.
-    fn scale_factor(&self) -> f64 {
-        1.0
-    }
-
-    /// Returns whether the [`Application`] should be terminated.
-    ///
-    /// By default, it returns `false`.
-    fn should_exit(&self) -> bool {
-        false
-    }
-
-    /// Runs the [`Application`].
-    ///
-    /// On native platforms, this method will take control of the current thread
-    /// until the [`Application`] exits.
-    ///
-    /// On the web platform, this method __will NOT return__ unless there is an
-    /// [`Error`] during startup.
-    ///
-    /// [`Error`]: crate::Error
-    fn run(settings: Settings<Self::Flags>) -> crate::Result
-    where
-        Self: 'static,
-    {
-        <Instance<Self> as crate::Application>::run(settings)
-    }
-}
-
-struct Instance<A: Application> {
-    application: A,
-    state: pure::State,
-}
-
-impl<A> crate::Application for Instance<A>
-where
-    A: Application,
-    A::Message: 'static,
-{
-    type Executor = A::Executor;
-    type Message = A::Message;
-    type Flags = A::Flags;
-    type Theme = A::Theme;
-
-    fn new(flags: Self::Flags) -> (Self, Command<Self::Message>) {
-        let (application, command) = A::new(flags);
-
-        (
-            Instance {
-                application,
-                state: pure::State::new(),
-            },
-            command,
-        )
-    }
-
-    fn title(&self) -> String {
-        A::title(&self.application)
-    }
-
-    fn update(&mut self, message: Self::Message) -> Command<Self::Message> {
-        A::update(&mut self.application, message)
-    }
-
-    fn subscription(&self) -> Subscription<Self::Message> {
-        A::subscription(&self.application)
-    }
-
-    fn view(
-        &mut self,
-    ) -> crate::Element<'_, Self::Message, crate::Renderer<Self::Theme>> {
-        let content = A::view(&self.application);
-
-        Pure::new(&mut self.state, content).into()
-    }
-
-    fn theme(&self) -> Self::Theme {
-        A::theme(&self.application)
-    }
-
-    fn mode(&self) -> window::Mode {
-        A::mode(&self.application)
-    }
-
-    fn scale_factor(&self) -> f64 {
-        A::scale_factor(&self.application)
-    }
-
-    fn should_exit(&self) -> bool {
-        A::should_exit(&self.application)
-    }
-}