211 lines
11 KiB
Rust
211 lines
11 KiB
Rust
//! Headless checks for Timeline keyframes as a person uses them: dragging keys over many frames
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//! in one gesture (the drag used to end after the first frame), Shift-snapping, and Ctrl+C /
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//! Ctrl+V, which the windowing layer delivers as clipboard events rather than key presses.
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use effectcraft_engine::Session;
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use effectcraft_engine::project::LayerId;
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use effectcraft_ui_egui::EffectcraftApp;
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use egui::{Event, Pos2, pos2};
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use egui_kittest::Harness;
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use serde_json::json;
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/// A 4 s, 30 fps comp with a Box layer whose Opacity has keys at 0 s and 1 s, revealed in the
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/// Timeline; returns the harness, the layer and the property uid.
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fn harness() -> (Harness<'static, EffectcraftApp>, LayerId, u64) {
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let mut s = Session::default();
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s.execute("comp.new", json!({"name": "Keys", "width": 320, "height": 180, "frameRate": 30, "duration": 4})).unwrap();
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s.execute("layer.newSolid", json!({"name": "Box", "color": "#e04020", "width": 80, "height": 80})).unwrap();
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let id = s.active_comp().unwrap().layers[0].id;
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for (t, v) in [(0.0, 0.0), (1.0, 100.0)] {
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s.execute("prop.addKey", json!({"layer": id.0, "path": "transform/opacity", "time": t, "value": v})).unwrap();
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}
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let uid = s.active_comp().unwrap().layer(id).unwrap().props.prop("transform/opacity").unwrap().uid;
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s.execute("layer.select", json!({"layers": [id.0]})).unwrap();
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let mut h = Harness::builder().with_size(egui::vec2(1600.0, 1000.0)).build_eframe(|_| EffectcraftApp::new(s));
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h.run_steps(3);
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let ctx = h.ctx.clone();
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effectcraft_ui_egui::menus::invoke(h.state_mut(), &ctx, "timeline.reveal.opacity", json!({})).unwrap();
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h.run_steps(4);
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(h, id, uid)
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}
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fn key_times(h: &Harness<'_, EffectcraftApp>, id: LayerId) -> Vec<f64> {
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let l = h.state().session.active_comp().unwrap().layer(id).unwrap().clone();
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l.props.prop("transform/opacity").unwrap().keys.iter().map(|k| (k.time.seconds() * 30.0).round() / 30.0).collect()
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}
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/// Screen centres of the property's keys, left to right.
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fn keys(h: &Harness<'_, EffectcraftApp>, uid: u64) -> Vec<Pos2> {
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let mut ks: Vec<Pos2> =
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h.state().auto.query(&format!("timeline.key.{uid}.")).iter().map(|e| pos2(e.rect[0] + e.rect[2] / 2.0, e.rect[1] + e.rect[3] / 2.0)).collect();
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ks.sort_by(|a, b| a.x.total_cmp(&b.x));
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ks
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}
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/// Press at `from`, move to `to` in small steps (a real drag), release.
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fn drag(h: &mut Harness<'_, EffectcraftApp>, from: Pos2, to: Pos2, modifiers: egui::Modifiers) {
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h.input_mut().events.push(Event::PointerMoved(from));
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h.step();
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h.input_mut().events.push(Event::ModifiersChanged(modifiers));
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h.input_mut().events.push(Event::PointerButton { pos: from, button: egui::PointerButton::Primary, pressed: true, modifiers });
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h.step();
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for i in 1..=24 {
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h.input_mut().events.push(Event::PointerMoved(from + (to - from) * (i as f32 / 24.0)));
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h.step();
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}
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h.input_mut().events.push(Event::PointerButton { pos: to, button: egui::PointerButton::Primary, pressed: false, modifiers });
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h.step();
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h.input_mut().events.push(Event::ModifiersChanged(Default::default()));
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h.run_steps(2);
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}
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#[test]
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fn a_key_drag_follows_the_pointer_for_its_whole_length() {
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let (mut h, id, uid) = harness();
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let ks = keys(&h, uid);
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assert_eq!(ks.len(), 2);
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let px_per_s = ks[1].x - ks[0].x;
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// Drag the 1 s key to where 2.5 s is: many frames, one gesture.
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let to = pos2(ks[1].x + px_per_s * 1.5, ks[1].y);
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drag(&mut h, ks[1], to, Default::default());
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let ts = key_times(&h, id);
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assert!((ts[1] - 2.5).abs() <= 2.0 / 30.0, "the key follows the whole drag: {ts:?}");
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let steps = h.state().session.history.undo.iter().filter(|(l, _)| l == "Move Keyframes").count();
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assert_eq!(steps, 1, "one undo step per drag");
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// Shift snaps it to the current time indicator (at 0.5 s), from a few pixels away.
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h.state_mut().session.set_time(effectcraft_engine::time::Tick::from_seconds_f64(0.5));
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h.run_steps(2);
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let ks = keys(&h, uid);
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let near = pos2(ks[0].x + px_per_s * 0.5 + 4.0, ks[1].y);
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drag(&mut h, ks[1], near, egui::Modifiers { shift: true, ..Default::default() });
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assert_eq!(key_times(&h, id)[1], 0.5, "snapped to the current time");
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}
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#[test]
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fn ctrl_c_and_ctrl_v_copy_and_paste_keys_at_the_current_time() {
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let (mut h, id, uid) = harness();
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let ks = keys(&h, uid);
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// Click the 1 s key to select it, Ctrl+C (a clipboard event, not a key press).
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h.input_mut().events.push(Event::PointerMoved(ks[1]));
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h.step();
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h.input_mut().events.push(Event::PointerButton { pos: ks[1], button: egui::PointerButton::Primary, pressed: true, modifiers: Default::default() });
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h.step();
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h.input_mut().events.push(Event::PointerButton { pos: ks[1], button: egui::PointerButton::Primary, pressed: false, modifiers: Default::default() });
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h.run_steps(2);
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assert_eq!(h.state().session.state.selected_keys.len(), 1);
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h.input_mut().events.push(Event::Copy);
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h.step();
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let copied: Vec<String> = h
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.output()
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.platform_output
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.commands
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.iter()
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.filter_map(|c| match c {
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egui::OutputCommand::CopyText(t) => Some(t.clone()),
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_ => None,
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})
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.collect();
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assert_eq!(copied, ["EffectCraft: 1 keyframe"], "the system clipboard is filled, so Ctrl+V sends a paste event");
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assert!(h.state().session.state.clip_is_keys);
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// Move to 3 s, Ctrl+V: the key lands there.
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h.state_mut().session.set_time(effectcraft_engine::time::Tick::from_seconds_f64(3.0));
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h.input_mut().events.push(Event::Paste("EffectCraft: 1 keyframe".into()));
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h.run_steps(2);
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assert_eq!(key_times(&h, id), vec![0.0, 1.0, 3.0]);
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}
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fn click_with(h: &mut Harness<'_, EffectcraftApp>, p: Pos2, modifiers: egui::Modifiers) {
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h.input_mut().events.push(Event::PointerMoved(p));
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h.step();
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h.input_mut().events.push(Event::ModifiersChanged(modifiers));
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h.input_mut().events.push(Event::PointerButton { pos: p, button: egui::PointerButton::Primary, pressed: true, modifiers });
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h.step();
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h.input_mut().events.push(Event::PointerButton { pos: p, button: egui::PointerButton::Primary, pressed: false, modifiers });
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h.step();
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h.input_mut().events.push(Event::ModifiersChanged(Default::default()));
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h.run_steps(2);
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}
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#[test]
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fn shift_click_toggles_and_ctrl_click_switches_interpolation() {
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let (mut h, id, uid) = harness();
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let ks = keys(&h, uid);
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let shift = egui::Modifiers { shift: true, ..Default::default() };
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click_with(&mut h, ks[0], Default::default());
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click_with(&mut h, ks[1], shift);
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assert_eq!(h.state().session.state.selected_keys.len(), 2, "Shift+click adds");
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click_with(&mut h, ks[1], shift);
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assert_eq!(h.state().session.state.selected_keys.len(), 1, "and takes out again");
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let key =
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|h: &Harness<'_, EffectcraftApp>| h.state().session.active_comp().unwrap().layer(id).unwrap().props.prop("transform/opacity").unwrap().keys[0].clone();
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// Ctrl+click: Linear → Auto Bezier → Linear.
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click_with(&mut h, ks[0], egui::Modifiers::COMMAND);
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assert!(key(&h).auto_bezier, "Auto Bezier");
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click_with(&mut h, ks[0], egui::Modifiers::COMMAND);
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assert_eq!(key(&h).out_interp, effectcraft_engine::keyframe::Interp::Linear);
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// Ctrl+Alt+click: Hold.
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click_with(&mut h, ks[0], egui::Modifiers { alt: true, ..egui::Modifiers::COMMAND });
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assert_eq!(key(&h).out_interp, effectcraft_engine::keyframe::Interp::Hold);
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}
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#[test]
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fn graph_editor_drags_move_every_selected_key_and_shift_keeps_an_axis() {
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let (mut h, id, uid) = harness();
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let s = &mut h.state_mut().session;
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s.execute("prop.select", json!({"layer": id.0, "prop": uid})).unwrap();
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s.execute("keys.selectAll", json!({})).unwrap();
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h.state_mut().ui.timeline.graph_editor = true;
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h.run_steps(4);
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let at = |h: &Harness<'_, EffectcraftApp>, i: usize| {
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let e = h.state().auto.find(&format!("timeline.graph.key.{uid}.0.{i}")).unwrap_or_else(|| panic!("no graph key {i}")).clone();
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pos2(e.rect[0] + e.rect[2] / 2.0, e.rect[1] + e.rect[3] / 2.0)
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};
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let (k0, k1) = (at(&h, 0), at(&h, 1));
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let px_per_s = k1.x - k0.x;
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let values = |h: &Harness<'_, EffectcraftApp>| -> Vec<f64> {
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h.state().session.active_comp().unwrap().layer(id).unwrap().props.prop("transform/opacity").unwrap().keys.iter().map(|k| k.value.as_f64()).collect()
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};
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// Shift: only along time, both keys, by 0.5 s.
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drag(&mut h, k1, pos2(k1.x + px_per_s * 0.5, k1.y - 6.0), egui::Modifiers { shift: true, ..Default::default() });
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assert_eq!(key_times(&h, id), vec![0.5, 1.5], "both selected keys moved");
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assert_eq!(values(&h), vec![0.0, 100.0], "Shift kept the values");
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let undo = h.state().session.history.undo.iter().filter(|(l, _)| l == "Transform Keyframes").count();
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assert_eq!(undo, 1, "one undo step per drag");
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// Without Shift the values move too (both keys, by the same amount).
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h.run_steps(2);
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let k1 = at(&h, 1);
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drag(&mut h, k1, pos2(k1.x, k1.y + 20.0), Default::default());
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let v = values(&h);
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assert!(v[0] < 0.0 && (v[1] - 100.0 - v[0]).abs() < 1e-6, "{v:?}");
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}
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#[test]
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fn double_click_a_key_to_edit_its_value() {
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let (mut h, id, uid) = harness();
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let k1 = keys(&h, uid)[1];
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h.input_mut().events.push(Event::PointerMoved(k1));
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h.step();
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// Both clicks inside egui's double-click time.
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for _ in 0..2 {
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h.input_mut().events.push(Event::PointerButton { pos: k1, button: egui::PointerButton::Primary, pressed: true, modifiers: Default::default() });
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h.input_mut().events.push(Event::PointerButton { pos: k1, button: egui::PointerButton::Primary, pressed: false, modifiers: Default::default() });
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}
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h.step();
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h.run_steps(2);
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assert_eq!(h.state().dialog, Some(effectcraft_ui_egui::Dialog::Form), "the value dialog opened");
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h.run_steps(2);
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assert!(h.state().auto.find("form.field.value").is_some(), "one Opacity field");
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// OK keeps the key where it is (the dialog edits the value only).
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let ok = h.state().auto.find("form.ok").expect("form.ok").clone();
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let p = pos2(ok.rect[0] + ok.rect[2] / 2.0, ok.rect[1] + ok.rect[3] / 2.0);
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h.input_mut().events.push(Event::PointerMoved(p));
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h.step();
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h.input_mut().events.push(Event::PointerButton { pos: p, button: egui::PointerButton::Primary, pressed: true, modifiers: Default::default() });
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h.step();
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h.input_mut().events.push(Event::PointerButton { pos: p, button: egui::PointerButton::Primary, pressed: false, modifiers: Default::default() });
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h.run_steps(2);
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assert!(h.state().dialog.is_none());
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let k = h.state().session.active_comp().unwrap().layer(id).unwrap().props.prop("transform/opacity").unwrap().keys[1].clone();
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assert_eq!((k.time.seconds(), k.value.as_f64()), (1.0, 100.0));
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}
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