Files
feresaria/shell/ferese-shell/src/motion.rs
T
Samuel Onoja 65fcaef13f Add editable panels and refine shell settings (#18)
* Integrate panel composition, adaptive sizing, and overflow

* Add instance editing controls to panel settings

* Add panel group editing and measured composition preview

* Reorganize panel settings and add drag-and-drop item editing

* Simplify panel settings and place inspectors beside the editor

* Refine Panel & Shell settings, previews, and panel rendering

* Organize settings navigation and modernize packaged panel config

* Support top and bottom panels and refine shell surfaces

Add edge-aware settings, previews, popup placement, notifications, margins, and corner rendering. Preserve translucency in notification and dialog controls, and tighten spacing around the clock and display-mode icon.

* Add workspace styles and fix Settings text rendering

* Make panel allocation independent of measurement order

* Normalize panel item settings and visibility

* Move shell geometry into each panel

* Add independent group surfaces and finalize panel configuration

* Keep panel fit checks and restoration consistent with allocation

* Reject unknown panel item options and namespace metadata

* Reject invalid shell startup configuration and remove old radius fields

* Discover workspace application icons in a background task

* Remove the panel architecture document and improve reference prose

* Let panel media fill available space and improve Settings scrolling

* Preserve panel labels across clipped GPU rendering

* Use matching alpine lake wallpapers for light and dark modes

* Fix panel accessibility and popup lifecycle

Apply Reduce Transparency to panel opacity in the shell, compositor, and
Settings preview. Reject unknown theme tokens before snapshot substitution
and validate the current geometry fields in both consumers.

Dismiss popovers and workspace tooltips after panel layout changes. Handle
bar pointer exits directly and recover workspace hover after reentry without
repeated motion updates. Cover the transitions with regression tests and
update the wallpaper dimensions check for the bundled lake defaults.

* Use tagged Ferese toolkit fixes

* Fix center-only panel spacing and headless text rendering

* Bundle native 4K abstract wallpapers for both appearances

* Dismiss workspace tooltips before captured pointer dispatch

* Verify installed JPEG wallpapers when replacing a release
2026-10-10 18:50:37 +01:00

777 lines
25 KiB
Rust

mod frames;
pub(crate) use frames::frame_driven;
use cosmic::iced::advanced::{Clipboard, Layout, Renderer as _, Shell, Widget, layout, mouse, renderer, widget};
use cosmic::iced::{Event, Length, Rectangle, Size, Transformation, Vector};
use cosmic::{Element, Theme};
pub type Regions = std::sync::Arc<std::sync::Mutex<Vec<[f32; 5]>>>;
pub(crate) use ferese_animation::MotionSettings as Settings;
use ferese_animation::{AnimatedValue, SpringConfig};
static SETTINGS: std::sync::OnceLock<std::sync::RwLock<Settings>> = std::sync::OnceLock::new();
static SHELL_RADIUS: std::sync::atomic::AtomicU32 = std::sync::atomic::AtomicU32::new(14.0_f32.to_bits());
/// All shell shapes share one radius, capped to fit smaller controls.
pub(crate) fn radius(limit: f32) -> f32 {
f32::from_bits(SHELL_RADIUS.load(std::sync::atomic::Ordering::Relaxed)).min(limit)
}
pub(crate) fn configure(settings: Settings, radius: f32) {
SHELL_RADIUS.store(radius.to_bits(), std::sync::atomic::Ordering::Relaxed);
*SETTINGS
.get_or_init(|| std::sync::RwLock::new(Settings::default()))
.write()
.unwrap() = settings;
}
pub(crate) fn settings() -> Settings {
*SETTINGS
.get_or_init(|| std::sync::RwLock::new(Settings::default()))
.read()
.unwrap()
}
pub(crate) struct PopupMotion {
value: AnimatedValue,
started: Option<std::time::Instant>,
settings: Settings,
}
impl PopupMotion {
pub(crate) fn update_settings(&mut self, settings: Settings) {
self.update_settings_at(settings, std::time::Instant::now());
}
fn update_settings_at(&mut self, settings: Settings, now: std::time::Instant) {
self.value = self.sample(now);
// Stored velocities use simulation seconds. Preserve visible velocity
// when changing the clock rate during an in-flight transition.
self.value.velocity *= self.settings.speed / settings.speed;
self.settings = settings;
if self.started.is_some() {
self.started = Some(now);
}
}
pub(crate) fn new(settings: Settings) -> Self {
Self {
value: AnimatedValue {
current: 0.0,
target: 1.0,
velocity: 0.0,
},
started: None,
settings,
}
}
pub(crate) fn begin(&mut self, now: std::time::Instant) {
if self.started.is_none() {
self.started = Some(now);
}
}
fn sample(&self, now: std::time::Instant) -> AnimatedValue {
let mut value = self.value;
let Some(started) = self.started else {
return value;
};
if !self.settings.motion_enabled() {
value.snap();
return value;
}
let spring = self.settings.spring_config().expect("validated motion settings");
value.advance(
now.saturating_duration_since(started).mul_f64(self.settings.speed),
SpringConfig {
position_tolerance: 0.00001,
velocity_tolerance: 0.00001,
..spring
},
);
value
}
pub(crate) fn progress_at(&self, now: std::time::Instant) -> f32 {
self.sample(now).current as f32
}
#[cfg(test)]
pub(crate) fn progress(&self) -> f32 {
self.progress_at(std::time::Instant::now())
}
pub(crate) fn closing(&self) -> bool {
self.value.target == 0.0
}
pub(crate) fn revision(&self) -> Option<std::time::Instant> {
self.started
}
pub(crate) fn frame_active(&self, now: std::time::Instant) -> bool {
self.started.is_some() && self.animating_at(now)
}
pub(crate) fn animating(&self) -> bool {
self.animating_at(std::time::Instant::now())
}
pub(crate) fn animating_at(&self, now: std::time::Instant) -> bool {
let value = self.sample(now);
value.current != value.target || value.velocity != 0.0
}
pub(crate) fn retarget(&mut self, target: f32, now: std::time::Instant) {
self.value = self.sample(now);
self.value.set_target(f64::from(target));
self.started = Some(now);
}
}
/// Animate paint only; the original button retains its layout, hit target,
/// keyboard handling, pressed state, and accessibility identity.
pub(crate) fn button<'a, M: Clone + 'a>(
button: cosmic::widget::button::Button<'a, M>,
foreground: cosmic::iced::Color,
selected: bool,
opacity: f32,
) -> Element<'a, M> {
let paint = move |progress: f32, pressed: bool| {
ferese_theme::controls::shell_button(foreground, selected, opacity, radius(14.), progress, pressed)
};
painted_button(button, paint)
}
pub(crate) fn circular_button<'a, M: Clone + 'a>(
button: cosmic::widget::button::Button<'a, M>,
foreground: cosmic::iced::Color,
fill: Option<cosmic::iced::Color>,
opacity: f32,
diameter: f32,
) -> Element<'a, M> {
let paint = move |progress: f32, pressed: bool| {
let mut style =
ferese_theme::controls::shell_button(foreground, false, opacity, diameter / 2.0, progress, pressed);
style.shape = Some(cosmic::iced::border::Shape::Circular);
if let Some(fill) = fill {
style.background = Some(
cosmic::iced::Color {
a: opacity * if pressed { 0.75 } else { 1.0 - 0.1 * progress },
..fill
}
.into(),
);
}
style
};
painted_button(button, paint)
}
fn painted_button<'a, M: Clone + 'a>(
button: cosmic::widget::button::Button<'a, M>,
paint: impl Fn(f32, bool) -> cosmic::widget::button::Style + Copy + 'static,
) -> Element<'a, M> {
let progress = std::rc::Rc::new(std::cell::Cell::new(0.0));
let active = progress.clone();
let hovered = progress.clone();
let content = button
.class(cosmic::theme::Button::Custom {
active: Box::new(move |_, _| paint(active.get(), false)),
hovered: Box::new(move |_, _| paint(hovered.get(), false)),
pressed: Box::new(move |_, _| paint(1.0, true)),
disabled: Box::new(move |_| paint(0.0, false)),
})
.into();
Element::new(Hover {
content,
progress,
duration: SETTINGS
.get()
.map_or_else(Settings::default, |settings| *settings.read().unwrap())
.duration(120.0),
})
}
#[derive(Default)]
struct HoverState {
current: f32,
start: f32,
target: f32,
started: Option<std::time::Instant>,
}
impl HoverState {
fn advance(&mut self, target: f32, now: std::time::Instant, duration: std::time::Duration) -> bool {
if self.target != target {
self.start = self.current;
self.target = target;
self.started = Some(now);
}
let t = if duration.is_zero() {
1.0
} else {
self.started.map_or(1.0, |start| {
(now.saturating_duration_since(start).as_secs_f32() / duration.as_secs_f32()).min(1.0)
})
};
self.current = self.start + (self.target - self.start) * t * t * (3.0 - 2.0 * t);
if t == 1.0 {
self.current = target;
self.started = None;
}
self.current != target
}
}
struct Hover<'a, M> {
content: Element<'a, M>,
progress: std::rc::Rc<std::cell::Cell<f32>>,
duration: std::time::Duration,
}
impl<M> Widget<M, Theme, cosmic::Renderer> for Hover<'_, M> {
fn a11y_nodes(
&self,
layout: Layout<'_>,
tree: &widget::Tree,
cursor: mouse::Cursor,
) -> iced_accessibility::A11yTree {
self.content.as_widget().a11y_nodes(layout, &tree.children[0], cursor)
}
fn tag(&self) -> widget::tree::Tag {
widget::tree::Tag::of::<HoverState>()
}
fn state(&self) -> widget::tree::State {
widget::tree::State::new(HoverState::default())
}
fn children(&self) -> Vec<widget::Tree> {
vec![widget::Tree::new(&self.content)]
}
fn diff(&mut self, tree: &mut widget::Tree) {
tree.diff_children(std::slice::from_mut(&mut self.content));
}
fn size(&self) -> Size<Length> {
self.content.as_widget().size()
}
fn layout(
&mut self,
tree: &mut widget::Tree,
renderer: &cosmic::Renderer,
limits: &layout::Limits,
) -> layout::Node {
self.content
.as_widget_mut()
.layout(&mut tree.children[0], renderer, limits)
}
fn update(
&mut self,
tree: &mut widget::Tree,
event: &Event,
layout: Layout<'_>,
cursor: mouse::Cursor,
renderer: &cosmic::Renderer,
clipboard: &mut dyn Clipboard,
shell: &mut Shell<'_, M>,
viewport: &Rectangle,
) {
let now = match event {
Event::Window(cosmic::iced::window::Event::RedrawRequested(at)) => *at,
_ => std::time::Instant::now(),
};
let hovered = cursor.is_over(layout.bounds()) && cursor.is_over(*viewport);
let state = tree.state.downcast_mut::<HoverState>();
if state.advance(if hovered { 1.0 } else { 0.0 }, now, self.duration) {
shell.request_redraw();
}
self.progress.set(state.current);
self.content.as_widget_mut().update(
&mut tree.children[0],
event,
layout,
cursor,
renderer,
clipboard,
shell,
viewport,
);
}
fn draw(
&self,
tree: &widget::Tree,
renderer: &mut cosmic::Renderer,
theme: &Theme,
style: &renderer::Style,
layout: Layout<'_>,
cursor: mouse::Cursor,
viewport: &Rectangle,
) {
self.progress.set(tree.state.downcast_ref::<HoverState>().current);
self.content
.as_widget()
.draw(&tree.children[0], renderer, theme, style, layout, cursor, viewport);
}
fn mouse_interaction(
&self,
tree: &widget::Tree,
layout: Layout<'_>,
cursor: mouse::Cursor,
viewport: &Rectangle,
renderer: &cosmic::Renderer,
) -> mouse::Interaction {
self.content
.as_widget()
.mouse_interaction(&tree.children[0], layout, cursor, viewport, renderer)
}
fn operate(
&mut self,
tree: &mut widget::Tree,
layout: Layout<'_>,
renderer: &cosmic::Renderer,
operation: &mut dyn widget::Operation,
) {
self.content
.as_widget_mut()
.operate(&mut tree.children[0], layout, renderer, operation);
}
fn overlay<'a>(
&'a mut self,
tree: &'a mut widget::Tree,
layout: Layout<'a>,
renderer: &cosmic::Renderer,
viewport: &Rectangle,
translation: Vector,
) -> Option<cosmic::iced::advanced::overlay::Element<'a, M, Theme, cosmic::Renderer>> {
self.content
.as_widget_mut()
.overlay(&mut tree.children[0], layout, renderer, viewport, translation)
}
}
pub fn animated<'a, M: 'a>(content: Element<'a, M>, progress: f32, regions: Regions, radius: f32) -> Element<'a, M> {
animated_from_edge(content, progress, regions, radius, ferese_config::panel::Edge::Top)
}
pub fn animated_from_edge<'a, M: 'a>(
content: Element<'a, M>,
progress: f32,
regions: Regions,
radius: f32,
edge: ferese_config::panel::Edge,
) -> Element<'a, M> {
Element::new(Motion {
content,
progress,
regions,
radius,
direction: if edge == ferese_config::panel::Edge::Top {
-1.
} else {
1.
},
})
}
struct Motion<'a, M> {
content: Element<'a, M>,
progress: f32,
regions: Regions,
radius: f32,
direction: f32,
}
impl<M> Motion<'_, M> {
fn translation(&self) -> Vector {
Vector::new(0.0, self.direction * 4.0 * (1.0 - self.progress))
}
fn cursor(&self, cursor: mouse::Cursor) -> mouse::Cursor {
cursor.position().map_or(mouse::Cursor::Unavailable, |p| {
mouse::Cursor::Available(p - self.translation())
})
}
}
impl<M> Widget<M, Theme, cosmic::Renderer> for Motion<'_, M> {
fn tag(&self) -> widget::tree::Tag {
self.content.as_widget().tag()
}
fn state(&self) -> widget::tree::State {
self.content.as_widget().state()
}
fn children(&self) -> Vec<widget::Tree> {
self.content.as_widget().children()
}
fn diff(&mut self, tree: &mut widget::Tree) {
self.content.as_widget_mut().diff(tree);
}
fn size(&self) -> Size<Length> {
self.content.as_widget().size()
}
fn layout(
&mut self,
tree: &mut widget::Tree,
renderer: &cosmic::Renderer,
limits: &layout::Limits,
) -> layout::Node {
self.content.as_widget_mut().layout(tree, renderer, limits)
}
fn update(
&mut self,
tree: &mut widget::Tree,
event: &Event,
layout: Layout<'_>,
cursor: mouse::Cursor,
renderer: &cosmic::Renderer,
clipboard: &mut dyn Clipboard,
shell: &mut Shell<'_, M>,
viewport: &Rectangle,
) {
let mut collector = CollectRegions(Vec::new());
self.content
.as_widget_mut()
.operate(tree, layout, renderer, &mut collector);
if collector.0.is_empty() {
// A single-content popover (e.g. battery) has one inner card, not
// a full-surface rectangle including the outer transparent padding.
if let Some(content) = layout.children().next() {
collector.0.push(content.bounds());
}
}
*self.regions.lock().unwrap() = collector.into_regions(self.translation(), self.radius);
let cursor = self.cursor(cursor);
self.content
.as_widget_mut()
.update(tree, event, layout, cursor, renderer, clipboard, shell, viewport);
}
fn draw(
&self,
tree: &widget::Tree,
renderer: &mut cosmic::Renderer,
theme: &Theme,
style: &renderer::Style,
layout: Layout<'_>,
cursor: mouse::Cursor,
viewport: &Rectangle,
) {
let v = self.translation();
let transform = Transformation::translate(v.x, v.y);
// Layout/region collection still run before the surface starts opening.
// No child may paint an opaque control before the presentation begins.
if self.progress <= 0.0 {
return;
}
renderer.with_transformation(transform, |renderer| {
self.content
.as_widget()
.draw(tree, renderer, theme, style, layout, self.cursor(cursor), viewport)
});
}
fn mouse_interaction(
&self,
tree: &widget::Tree,
layout: Layout<'_>,
cursor: mouse::Cursor,
viewport: &Rectangle,
renderer: &cosmic::Renderer,
) -> mouse::Interaction {
self.content
.as_widget()
.mouse_interaction(tree, layout, self.cursor(cursor), viewport, renderer)
}
fn operate(
&mut self,
tree: &mut widget::Tree,
layout: Layout<'_>,
renderer: &cosmic::Renderer,
operation: &mut dyn widget::Operation,
) {
self.content.as_widget_mut().operate(tree, layout, renderer, operation);
}
}
struct CollectRegions(Vec<Rectangle>);
impl CollectRegions {
fn into_regions(self, translation: Vector, radius: f32) -> Vec<[f32; 5]> {
self.0
.into_iter()
.take(32)
.filter(|r| r.width > 0.0 && r.height > 0.0)
.map(|r| {
[
r.x + translation.x,
r.y + translation.y,
r.width,
r.height,
radius.max(0.0),
]
})
.collect()
}
}
impl widget::Operation for CollectRegions {
fn traverse(&mut self, children: &mut dyn FnMut(&mut dyn widget::Operation)) {
children(self);
}
fn container(&mut self, id: Option<&widget::Id>, bounds: Rectangle) {
if id == Some(&widget::Id::new("ferese-blur-card")) {
let contains = |outer: &Rectangle, inner: &Rectangle| {
outer.x <= inner.x
&& outer.y <= inner.y
&& outer.x + outer.width >= inner.x + inner.width
&& outer.y + outer.height >= inner.y + inner.height
};
// Nested controls belong to their enclosing card's single blur pass.
if self.0.iter().any(|outer| contains(outer, &bounds)) {
return;
}
self.0.retain(|inner| !contains(&bounds, inner));
self.0.push(bounds);
}
}
}
#[cfg(test)]
mod tests {
#[test]
fn duration_bounce_spring_finishes_popup_close() {
let settings = super::Settings {
spring: ferese_animation::SpringSettings {
duration_ms: Some(240.0),
bounce: 0.3,
overshoot: true,
},
..Default::default()
};
settings.validate().unwrap();
let now = std::time::Instant::now();
let mut motion = super::PopupMotion::new(settings);
motion.begin(now);
let opened = now + std::time::Duration::from_secs(1);
assert_eq!(motion.sample(opened).current, 1.0);
motion.retarget(0.0, opened);
let closed = motion.sample(opened + std::time::Duration::from_secs(1));
assert!(motion.closing());
assert_eq!(closed.current, closed.target);
assert_eq!(closed.velocity, 0.0);
}
use super::*;
#[test]
fn material_regions_preserve_fractional_layout_and_translation() {
let collector = CollectRegions(vec![Rectangle::new((0.25, 2.5).into(), (100.25, 40.5).into())]);
assert_eq!(
collector.into_regions(Vector::new(0.125, -0.25), 13.5),
vec![[0.375, 2.25, 100.25, 40.5, 13.5]]
);
}
#[test]
fn centered_modal_material_tracks_surface_position_and_animation() {
let mut collector = CollectRegions(Vec::new());
let card = Rectangle::new((380.0, 420.0).into(), (440.0, 220.0).into());
widget::Operation::container(&mut collector, Some(&widget::Id::new("ferese-blur-card")), card);
assert_eq!(
collector.into_regions(Vector::new(0.0, -2.0), 14.0),
vec![[380., 418., 440., 220., 14.]]
);
}
#[test]
fn popup_waits_for_configuration_and_preserves_reversal_velocity() {
let now = std::time::Instant::now();
let mut motion = PopupMotion::new(Settings::default());
assert_eq!(motion.progress_at(now + std::time::Duration::from_secs(30)), 0.0);
motion.begin(now);
let reverse = now + std::time::Duration::from_millis(90);
let before = motion.sample(reverse);
motion.begin(reverse);
assert_eq!(motion.sample(reverse), before);
motion.retarget(0.0, reverse);
let after = motion.sample(reverse);
assert_eq!(after.current, before.current);
assert_eq!(after.velocity, before.velocity);
assert!(motion.closing());
assert_eq!(motion.progress_at(reverse + std::time::Duration::from_secs(2)), 0.0);
}
#[test]
fn live_speed_change_preserves_visible_velocity_and_reduced_motion_snaps() {
let now = std::time::Instant::now();
let mut motion = PopupMotion::new(Settings::default());
motion.begin(now);
let time = now + std::time::Duration::from_millis(90);
let before = motion.sample(time);
motion.update_settings_at(
Settings {
speed: 2.0,
..Settings::default()
},
time,
);
let after = motion.sample(time);
assert_eq!(after.current, before.current);
assert_eq!(after.velocity * 2.0, before.velocity);
motion.update_settings_at(
Settings {
reduced_motion: true,
..Settings::default()
},
time,
);
assert_eq!(motion.progress_at(time), 1.0);
}
#[test]
fn popup_reversal_and_motion_policy_are_consistent() {
let now = std::time::Instant::now();
let mut motion = PopupMotion::new(Settings {
speed: 0.75,
..Settings::default()
});
motion.begin(now);
let reverse = now + std::time::Duration::from_millis(120);
let before = motion.progress_at(reverse);
motion.retarget(0.0, reverse);
assert_eq!(motion.progress_at(reverse), before);
let reopen = reverse + std::time::Duration::from_millis(60);
let before = motion.progress_at(reopen);
motion.retarget(1.0, reopen);
assert_eq!(motion.progress_at(reopen), before);
assert_eq!(motion.progress_at(reopen + std::time::Duration::from_secs(2)), 1.0);
for settings in [
Settings {
reduced_motion: true,
..Settings::default()
},
Settings {
enabled: false,
..Settings::default()
},
] {
let mut motion = PopupMotion::new(settings);
assert_eq!(motion.progress_at(now), 0.0);
motion.begin(now);
assert_eq!(motion.progress_at(now), 1.0);
motion.retarget(0.0, now);
assert_eq!(motion.progress_at(now), 0.0);
}
}
#[test]
fn updating_motion_policy_preserves_surface_readiness() {
let mut motion = PopupMotion::new(Settings::default());
motion.update_settings(Settings {
reduced_motion: true,
..Settings::default()
});
assert_eq!(motion.progress(), 0.0);
motion.begin(std::time::Instant::now());
assert_eq!(motion.progress(), 1.0);
}
#[test]
fn hover_fades_settle_and_idle_does_not_schedule_frames() {
let now = std::time::Instant::now();
let duration = std::time::Duration::from_millis(120);
let mut hover = HoverState::default();
assert!(!hover.advance(0.0, now, duration));
assert!(hover.advance(1.0, now + std::time::Duration::from_secs(10), duration));
assert_eq!(hover.current, 0.0);
let start = now + std::time::Duration::from_secs(10);
assert!(hover.advance(1.0, start + duration / 2, duration));
assert!((hover.current - 0.5).abs() < 0.00001);
assert!(!hover.advance(1.0, start + duration, duration));
assert_eq!(hover.current, 1.0);
assert!(!hover.advance(1.0, start + duration * 10, duration));
assert!(hover.advance(0.0, start + duration * 11, duration));
assert!(!hover.advance(0.0, start + duration * 12, duration));
assert_eq!(hover.current, 0.0);
}
#[test]
fn hover_reversals_preserve_current_paint() {
let now = std::time::Instant::now();
let duration = std::time::Duration::from_millis(120);
let mut hover = HoverState::default();
hover.advance(1.0, now, duration);
hover.advance(1.0, now + duration / 2, duration);
let before = hover.current;
assert!(hover.advance(0.0, now + duration / 2, duration));
assert_eq!(hover.current, before);
hover.advance(0.0, now + duration, duration);
assert!(hover.current > 0.0 && hover.current < before);
}
#[test]
fn hover_obeys_global_motion_policy() {
assert_eq!(
Settings {
speed: 0.75,
..Settings::default()
}
.duration(120.0),
std::time::Duration::from_millis(160)
);
for settings in [
Settings {
enabled: false,
..Settings::default()
},
Settings {
reduced_motion: true,
..Settings::default()
},
] {
assert!(settings.duration(120.0).is_zero());
let mut hover = HoverState::default();
assert!(!hover.advance(1.0, std::time::Instant::now(), settings.duration(120.0)));
assert_eq!(hover.current, 1.0);
}
}
#[test]
fn material_regions_include_cards_but_not_the_parent_or_gaps() {
let mut collector = CollectRegions(Vec::new());
let id = widget::Id::new("ferese-blur-card");
widget::Operation::container(
&mut collector,
None,
Rectangle::new((0.0, 0.0).into(), (320.0, 200.0).into()),
);
let first = Rectangle::new((12.0, 12.0).into(), (140.0, 80.0).into());
let second = Rectangle::new((160.0, 12.0).into(), (140.0, 80.0).into());
widget::Operation::container(&mut collector, Some(&id), first);
widget::Operation::container(&mut collector, Some(&id), second);
assert_eq!(collector.0, vec![first, second]);
widget::Operation::container(
&mut collector,
Some(&id),
Rectangle::new((20.0, 20.0).into(), (40.0, 40.0).into()),
);
assert_eq!(collector.0, vec![first, second]);
}
}