1use std::ops::Range;
 2
 3use pathfinder_geometry::{rect::RectF, vector::Vector2F};
 4use serde_json::json;
 5
 6use crate::{
 7    json, AnyElement, Element, LayoutContext, PaintContext, SceneBuilder, SizeConstraint, View,
 8    ViewContext,
 9};
10
11pub struct Clipped<V: View> {
12    child: AnyElement<V>,
13}
14
15impl<V: View> Clipped<V> {
16    pub fn new(child: AnyElement<V>) -> Self {
17        Self { child }
18    }
19}
20
21impl<V: View> Element<V> for Clipped<V> {
22    type LayoutState = ();
23    type PaintState = ();
24
25    fn layout(
26        &mut self,
27        constraint: SizeConstraint,
28        view: &mut V,
29        cx: &mut LayoutContext<V>,
30    ) -> (Vector2F, Self::LayoutState) {
31        (self.child.layout(constraint, view, cx), ())
32    }
33
34    fn paint(
35        &mut self,
36        scene: &mut SceneBuilder,
37        bounds: RectF,
38        visible_bounds: RectF,
39        _: &mut Self::LayoutState,
40        view: &mut V,
41        cx: &mut PaintContext<V>,
42    ) -> Self::PaintState {
43        scene.paint_layer(Some(bounds), |scene| {
44            self.child
45                .paint(scene, bounds.origin(), visible_bounds, view, cx)
46        })
47    }
48
49    fn rect_for_text_range(
50        &self,
51        range_utf16: Range<usize>,
52        _: RectF,
53        _: RectF,
54        _: &Self::LayoutState,
55        _: &Self::PaintState,
56        view: &V,
57        cx: &ViewContext<V>,
58    ) -> Option<RectF> {
59        self.child.rect_for_text_range(range_utf16, view, cx)
60    }
61
62    fn debug(
63        &self,
64        _: RectF,
65        _: &Self::LayoutState,
66        _: &Self::PaintState,
67        view: &V,
68        cx: &ViewContext<V>,
69    ) -> json::Value {
70        json!({
71            "type": "Clipped",
72            "child": self.child.debug(view, cx)
73        })
74    }
75}