feat: add decorations example (#888)

examples/decorations.rs

@@ -0,0 +1,51 @@
+// Copyright 2014-2021 The winit contributors
+// Copyright 2021-2023 Tauri Programme within The Commons Conservancy
+// SPDX-License-Identifier: Apache-2.0
+
+use tao::{
+  dpi::LogicalSize,
+  event::{ElementState, Event, KeyEvent, WindowEvent},
+  event_loop::{ControlFlow, EventLoop},
+  keyboard::KeyCode,
+  window::WindowBuilder,
+};
+
+#[allow(clippy::single_match)]
+fn main() {
+  env_logger::init();
+  let event_loop = EventLoop::new();
+
+  let mut decorations = true;
+
+  let window = WindowBuilder::new()
+    .with_title("Hit space to toggle decorations.")
+    .with_inner_size(LogicalSize::new(400.0, 200.0))
+    .with_decorations(decorations)
+    .build(&event_loop)
+    .unwrap();
+
+  event_loop.run(move |event, _, control_flow| {
+    *control_flow = ControlFlow::Wait;
+
+    match event {
+      Event::WindowEvent { event, .. } => match event {
+        WindowEvent::CloseRequested => *control_flow = ControlFlow::Exit,
+        WindowEvent::KeyboardInput {
+          event:
+            KeyEvent {
+              physical_key: KeyCode::Space,
+              state: ElementState::Released,
+              ..
+            },
+          ..
+        } => {
+          decorations = !decorations;
+          println!("Decorations: {}", decorations);
+          window.set_decorations(decorations);
+        }
+        _ => (),
+      },
+      _ => (),
+    };
+  });
+}