iris-aiandiris
c8ac669f95
Small, and disjoint from #12 — this touches `task.rs`, `harness.rs` and `render_state.rs`, none of which #12 goes near. `Tasks` held an `Arc<Window>` only to call `request_redraw` when a task finished, which made the task queue, and so `DefaultRsc`, impossible to build without a window. It now takes an `Arc<dyn WakeTaskQueue>`, and `Window` implements it. Waking also moves from *the task ended* to *an update was sent*, which is when there is actually something for the host to apply. A task that keeps running after sending one no longer holds it until it finishes, and a task that sends none no longer asks for a frame nothing needs. `iris::harness` is what that buys. `UiRenderState` already does layout, hit testing and primitive building with no surface, so a test can build a tree, run frames, move a pointer and read back where widgets landed. `tests/harness.rs` covers span layout, resize relayout, press routing, hover start and end, wheel scrolling with its clamp, and a task update reaching the tree. None of them could be written before, since the only way into layout was a window. It does not draw. A claim about pixels still needs a real surface — I checked this one against the rig rather than asserting it: `examples/task` under headless sway, centre pixel `ff0000` before the click and `0000ff` after, so the windowed path still applies task updates under the new wake. The only core change is `UiRenderState::output_size()`, so that a host reading back the size it set does not have to keep a second copy. --------- Co-authored-by: iris <2+iris@noreply.localhost> Reviewed-on: iris/iris#15 Reviewed-by: iris <2+iris@noreply.localhost> Co-authored-by: AIris <4+iris-ai@noreply.localhost>
24 lines
620 B
Rust
24 lines
620 B
Rust
//! What a background task can change, and how it gets back to the ui.
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use std::time::Duration;
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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_task_update_reaches_the_tree() {
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let mut h = Harness::new((400, 200));
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let widget = rect(Color::RED).add(&mut h.rsc);
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h.set_root(widget.task_on(CursorSense::click(), async move |mut ctx| {
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ctx.update(move |_, rsc| widget(rsc).color = Color::BLUE);
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}));
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h.click((200, 100));
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assert!(
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h.await_update(Duration::from_secs(5)),
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"the task sent no update"
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);
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assert_eq!(h.rsc[widget].color, Color::BLUE);
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}
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