iris
3a74a04a5b
`WakeTaskQueue` becomes `TaskQueue`, which carries the update itself. Delivery and waking are then one act: the winit host sends it through the `EventLoopProxy` as a `DefaultEvent::Update`, so there is no channel beside the loop and nothing has to claim a redraw is needed in order to be looked at. `Window::request_redraw` is gone from this path; `event` applies the update and then asks the tree whether anything became dirty, which is the same question `window_event` already ended with -- now `schedule_redraw`, called from both. The loop's message type is `DefaultEvent<State>`, so `Proxy` becomes a wrapper that takes the application's own `Event` and requires it to be `Send`, since it now crosses to the task thread by that route. The harness supplies a channel-backed queue, which is what lets a test hold updates until it asks for them. Tests split by subject -- layout, pointer, scroll, tasks -- with the region helper in `tests/common`.
61 lines
1.7 KiB
Rust
61 lines
1.7 KiB
Rust
//! Which widget an input reaches.
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use std::{cell::RefCell, rc::Rc};
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use iris::harness::Harness;
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use iris::prelude::*;
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#[test]
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fn a_press_reaches_only_the_widget_under_the_cursor() {
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let mut h = Harness::new((400, 200));
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let clicks = Rc::new(RefCell::new(Vec::new()));
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let (on_left, on_right) = (clicks.clone(), clicks.clone());
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let left = rect(Color::RED)
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.width(100)
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.on(CursorSense::click(), move |_, _| {
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on_left.borrow_mut().push("left")
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})
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.add(&mut h.rsc);
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let right = rect(Color::BLUE)
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.on(CursorSense::click(), move |_, _| {
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on_right.borrow_mut().push("right")
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})
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.add(&mut h.rsc);
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h.set_root((left, right).span(Dir::RIGHT));
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h.click((50, 100));
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assert_eq!(*clicks.borrow(), ["left"]);
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h.click((300, 100));
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assert_eq!(*clicks.borrow(), ["left", "right"]);
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}
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#[test]
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fn hover_ends_when_the_cursor_leaves_the_window() {
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let mut h = Harness::new((400, 200));
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let hovered = Rc::new(RefCell::new(0));
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let ended = Rc::new(RefCell::new(0));
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let (h_count, e_count) = (hovered.clone(), ended.clone());
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let widget = rect(Color::RED)
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.on(CursorSense::HoverStart, move |_, _| {
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*h_count.borrow_mut() += 1
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})
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.on(CursorSense::HoverEnd, move |_, _| {
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*e_count.borrow_mut() += 1
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})
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.add(&mut h.rsc);
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h.set_root(widget);
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h.move_to((200, 100));
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assert_eq!((*hovered.borrow(), *ended.borrow()), (1, 0));
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// A second sample inside the same widget is not a second hover.
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h.move_to((210, 100));
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assert_eq!((*hovered.borrow(), *ended.borrow()), (1, 0));
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h.leave();
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assert_eq!((*hovered.borrow(), *ended.borrow()), (1, 1));
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}
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