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Support pinch, double tap and rotation gestures on iOS (#3130)

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This is off by default on iOS. Note that pinch delta may be NaN.

Co-authored-by: Mads Marquart <mads@marquart.dk>
This commit is contained in:
François 2024-01-16 21:31:18 +01:00 • committed by GitHub
parent 30775f4982
commit 6b29253797
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10 changed files with 362 additions and 34 deletions
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28
examples/touchpad_gestures.rs → examples/touch_gestures.rs
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@ -16,28 +16,40 @@ fn main() -> Result<(), impl std::error::Error> {
.with_title("Touchpad gestures")
.build(&event_loop)
.unwrap();
#[cfg(target_os = "ios")]
{
use winit::platform::ios::WindowExtIOS;
window.recognize_doubletap_gesture(true);
window.recognize_pinch_gesture(true);
window.recognize_rotation_gesture(true);
}
println!("Only supported on macOS at the moment.");
println!("Only supported on macOS/iOS at the moment.");
let mut zoom = 0.0;
let mut rotated = 0.0;
event_loop.run(move |event, elwt| {
if let Event::WindowEvent { event, .. } = event {
match event {
WindowEvent::CloseRequested => elwt.exit(),
WindowEvent::TouchpadMagnify { delta, .. } => {
WindowEvent::PinchGesture { delta, .. } => {
zoom += delta;
if delta > 0.0 {
println!("Zoomed in {delta}");
println!("Zoomed in {delta:.5} (now: {zoom:.5})");
} else {
println!("Zoomed out {delta}");
println!("Zoomed out {delta:.5} (now: {zoom:.5})");
}
}
WindowEvent::SmartMagnify { .. } => {
WindowEvent::DoubleTapGesture { .. } => {
println!("Smart zoom");
}
WindowEvent::TouchpadRotate { delta, .. } => {
WindowEvent::RotationGesture { delta, .. } => {
rotated += delta;
if delta > 0.0 {
println!("Rotated counterclockwise {delta}");
println!("Rotated counterclockwise {delta:.5} (now: {rotated:.5})");
} else {
println!("Rotated clockwise {delta}");
println!("Rotated clockwise {delta:.5} (now: {rotated:.5})");
}
}
WindowEvent::RedrawRequested => {