diff options
Diffstat (limited to 'src/multi_window/application.rs')
| -rw-r--r-- | src/multi_window/application.rs | 96 |
1 files changed, 42 insertions, 54 deletions
diff --git a/src/multi_window/application.rs b/src/multi_window/application.rs index 9974128c..0486159e 100644 --- a/src/multi_window/application.rs +++ b/src/multi_window/application.rs @@ -1,30 +1,37 @@ use crate::window; use crate::{Command, Element, Executor, Settings, Subscription}; -pub use iced_native::application::{Appearance, StyleSheet}; +pub use crate::style::application::{Appearance, StyleSheet}; /// An interactive cross-platform multi-window application. /// /// This trait is the main entrypoint of Iced. Once implemented, you can run /// your GUI application by simply calling [`run`](#method.run). /// +/// - On native platforms, it will run in its own windows. +/// - On the web, it will take control of the `<title>` and the `<body>` of the +/// document and display only the contents of the `window::Id::MAIN` window. +/// /// An [`Application`] can execute asynchronous actions by returning a -/// [`Command`] in some of its methods. For example, to spawn a new window, you -/// can use the `iced_winit::window::spawn()` [`Command`]. +/// [`Command`] in some of its methods. If you do not intend to perform any +/// background work in your program, the [`Sandbox`] trait offers a simplified +/// interface. /// /// When using an [`Application`] with the `debug` feature enabled, a debug view /// can be toggled by pressing `F12`. /// +/// # Examples +/// See the `examples/multi-window` example to see this multi-window `Application` trait in action. +/// /// ## A simple "Hello, world!" /// /// If you just want to get started, here is a simple [`Application`] that /// says "Hello, world!": /// /// ```no_run -/// use iced::executor; -/// use iced::multi_window::Application; -/// use iced::window; +/// use iced::{executor, window}; /// use iced::{Command, Element, Settings, Theme}; +/// use iced::multi_window::{self, Application}; /// /// pub fn main() -> iced::Result { /// Hello::run(Settings::default()) @@ -32,17 +39,17 @@ pub use iced_native::application::{Appearance, StyleSheet}; /// /// struct Hello; /// -/// impl Application for Hello { +/// impl multi_window::Application for Hello { /// type Executor = executor::Default; +/// type Flags = (); /// type Message = (); /// type Theme = Theme; -/// type Flags = (); /// /// fn new(_flags: ()) -> (Hello, Command<Self::Message>) { /// (Hello, Command::none()) /// } /// -/// fn title(&self, window: window::Id) -> String { +/// fn title(&self, _window: window::Id) -> String { /// String::from("A cool application") /// } /// @@ -50,13 +57,9 @@ pub use iced_native::application::{Appearance, StyleSheet}; /// Command::none() /// } /// -/// fn view(&self, window: window::Id) -> Element<Self::Message> { +/// fn view(&self, _window: window::Id) -> Element<Self::Message> { /// "Hello, world!".into() /// } -/// -/// fn close_requested(&self, window: window::Id) -> Self::Message { -/// () -/// } /// } /// ``` pub trait Application: Sized { @@ -89,10 +92,10 @@ pub trait Application: Sized { /// [`run`]: Self::run fn new(flags: Self::Flags) -> (Self, Command<Self::Message>); - /// Returns the current title of the [`Application`]. + /// Returns the current title of the `window` of the [`Application`]. /// /// This title can be dynamic! The runtime will automatically update the - /// title of your application when necessary. + /// title of your window when necessary. fn title(&self, window: window::Id) -> String; /// Handles a __message__ and updates the state of the [`Application`]. @@ -104,7 +107,15 @@ pub trait Application: Sized { /// Any [`Command`] returned will be executed immediately in the background. fn update(&mut self, message: Self::Message) -> Command<Self::Message>; - /// Returns the current [`Theme`] of the [`Application`]. + /// Returns the widgets to display in the `window` of the [`Application`]. + /// + /// These widgets can produce __messages__ based on user interaction. + fn view( + &self, + window: window::Id, + ) -> Element<'_, Self::Message, crate::Renderer<Self::Theme>>; + + /// Returns the current [`Theme`] of the `window` of the [`Application`]. /// /// [`Theme`]: Self::Theme #[allow(unused_variables)] @@ -112,9 +123,8 @@ pub trait Application: Sized { Self::Theme::default() } - /// Returns the current [`Style`] of the [`Theme`]. + /// Returns the current `Style` of the [`Theme`]. /// - /// [`Style`]: <Self::Theme as StyleSheet>::Style /// [`Theme`]: Self::Theme fn style(&self) -> <Self::Theme as StyleSheet>::Style { <Self::Theme as StyleSheet>::Style::default() @@ -132,14 +142,6 @@ pub trait Application: Sized { Subscription::none() } - /// Returns the widgets to display in the [`Application`]. - /// - /// These widgets can produce __messages__ based on user interaction. - fn view( - &self, - window: window::Id, - ) -> Element<'_, Self::Message, crate::Renderer<Self::Theme>>; - /// Returns the scale factor of the `window` of the [`Application`]. /// /// It can be used to dynamically control the size of the UI at runtime @@ -154,18 +156,7 @@ pub trait Application: Sized { 1.0 } - /// Returns whether the [`Application`] should be terminated. - /// - /// By default, it returns `false`. - fn should_exit(&self) -> bool { - false - } - - /// Returns the `Self::Message` that should be processed when a `window` is requested to - /// be closed. - fn close_requested(&self, window: window::Id) -> Self::Message; - - /// Runs the [`Application`]. + /// Runs the multi-window [`Application`]. /// /// On native platforms, this method will take control of the current thread /// until the [`Application`] exits. @@ -182,30 +173,28 @@ pub trait Application: Sized { let renderer_settings = crate::renderer::Settings { default_font: settings.default_font, default_text_size: settings.default_text_size, - text_multithreading: settings.text_multithreading, antialiasing: if settings.antialiasing { - Some(crate::renderer::settings::Antialiasing::MSAAx4) + Some(crate::graphics::Antialiasing::MSAAx4) } else { None }, - ..crate::renderer::Settings::from_env() + ..crate::renderer::Settings::default() }; - Ok(crate::runtime::multi_window::run::< + Ok(crate::shell::multi_window::run::< Instance<Self>, Self::Executor, - crate::renderer::window::Compositor<Self::Theme>, + crate::renderer::Compositor<Self::Theme>, >(settings.into(), renderer_settings)?) } } struct Instance<A: Application>(A); -impl<A> crate::runtime::multi_window::Application for Instance<A> +impl<A> crate::runtime::multi_window::Program for Instance<A> where A: Application, { - type Flags = A::Flags; type Renderer = crate::Renderer<A::Theme>; type Message = A::Message; @@ -219,6 +208,13 @@ where ) -> Element<'_, Self::Message, Self::Renderer> { self.0.view(window) } +} + +impl<A> crate::shell::multi_window::Application for Instance<A> +where + A: Application, +{ + type Flags = A::Flags; fn new(flags: Self::Flags) -> (Self, Command<A::Message>) { let (app, command) = A::new(flags); @@ -245,12 +241,4 @@ where fn scale_factor(&self, window: window::Id) -> f64 { self.0.scale_factor(window) } - - fn should_exit(&self) -> bool { - self.0.should_exit() - } - - fn close_requested(&self, window: window::Id) -> Self::Message { - self.0.close_requested(window) - } } |