Vendor things

third-party/vendor/winit/examples/window_option_as_alt.rs

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+#![allow(clippy::single_match)]
+
+#[cfg(target_os = "macos")]
+use winit::platform::macos::{OptionAsAlt, WindowExtMacOS};
+
+#[cfg(target_os = "macos")]
+use winit::{
+    event::ElementState,
+    event::{Event, MouseButton, WindowEvent},
+    event_loop::EventLoop,
+    window::WindowBuilder,
+};
+
+/// Prints the keyboard events characters received when option_is_alt is true versus false.
+/// A left mouse click will toggle option_is_alt.
+#[cfg(target_os = "macos")]
+fn main() {
+    let event_loop = EventLoop::new();
+
+    let window = WindowBuilder::new()
+        .with_title("A fantastic window!")
+        .with_inner_size(winit::dpi::LogicalSize::new(128.0, 128.0))
+        .build(&event_loop)
+        .unwrap();
+
+    let mut option_as_alt = window.option_as_alt();
+
+    event_loop.run(move |event, _, control_flow| {
+        control_flow.set_wait();
+
+        match event {
+            Event::WindowEvent {
+                event: WindowEvent::CloseRequested,
+                window_id,
+            } if window_id == window.id() => control_flow.set_exit(),
+            Event::WindowEvent { event, .. } => match event {
+                WindowEvent::MouseInput {
+                    state: ElementState::Pressed,
+                    button: MouseButton::Left,
+                    ..
+                } => {
+                    option_as_alt = match option_as_alt {
+                        OptionAsAlt::None => OptionAsAlt::OnlyLeft,
+                        OptionAsAlt::OnlyLeft => OptionAsAlt::OnlyRight,
+                        OptionAsAlt::OnlyRight => OptionAsAlt::Both,
+                        OptionAsAlt::Both => OptionAsAlt::None,
+                    };
+
+                    println!("Received Mouse click, toggling option_as_alt to: {option_as_alt:?}");
+                    window.set_option_as_alt(option_as_alt);
+                }
+                WindowEvent::ReceivedCharacter(c) => println!("ReceivedCharacter: {c:?}"),
+                WindowEvent::KeyboardInput { .. } => println!("KeyboardInput: {event:?}"),
+                _ => (),
+            },
+            Event::MainEventsCleared => {
+                window.request_redraw();
+            }
+            _ => (),
+        }
+    });
+}
+
+#[cfg(not(target_os = "macos"))]
+fn main() {
+    println!("This example is only supported on MacOS");
+}