fret_ui/
frame_cx.rs

1use fret_core::{AppWindowId, Rect, Scene, UiServices};
2
3use crate::UiHost;
4use crate::tree::UiTree;
5
6pub struct UiFrameCx<'a, H: UiHost> {
7    pub ui: &'a mut UiTree<H>,
8    pub app: &'a mut H,
9    pub services: &'a mut dyn UiServices,
10    pub window: AppWindowId,
11    pub bounds: Rect,
12    pub scale_factor: f32,
13}
14
15pub type UiFrameContext<'a, H> = UiFrameCx<'a, H>;
16
17impl<'a, H: UiHost> UiFrameCx<'a, H> {
18    pub fn new(
19        ui: &'a mut UiTree<H>,
20        app: &'a mut H,
21        services: &'a mut dyn UiServices,
22        window: AppWindowId,
23        bounds: Rect,
24        scale_factor: f32,
25    ) -> Self {
26        Self {
27            ui,
28            app,
29            services,
30            window,
31            bounds,
32            scale_factor,
33        }
34    }
35
36    pub fn layout_all(&mut self) {
37        let span = tracing::trace_span!(
38            "fret_ui.layout_all",
39            window = ?self.window,
40            frame_id = self.app.frame_id().0,
41        );
42        let _guard = span.enter();
43        self.ui
44            .layout_all(self.app, self.services, self.bounds, self.scale_factor);
45
46        let occlusion_changed = self.app.with_global_mut_untracked(
47            crate::elements::ElementRuntime::new,
48            |runtime, _app| {
49                runtime
50                    .for_window(self.window)
51                    .is_some_and(|state| state.occlusion_insets_changed_this_frame())
52            },
53        );
54        if occlusion_changed && let Some(focus) = self.ui.focus() {
55            self.ui.scroll_node_into_view(self.app, focus);
56        }
57    }
58
59    pub fn paint_all(&mut self, scene: &mut Scene) {
60        let span = tracing::trace_span!(
61            "fret_ui.paint_all",
62            window = ?self.window,
63            frame_id = self.app.frame_id().0,
64        );
65        let _guard = span.enter();
66        self.ui.paint_all(
67            self.app,
68            self.services,
69            self.bounds,
70            scene,
71            self.scale_factor,
72        );
73    }
74}
fret_ui/frame_cx.rs

fret_ui/
frame_cx.rs
