🐛 Fix inset child clip for frames with inner stroke

render-wasm/src/render.rs

@@ -115,6 +115,7 @@ impl NodeRenderState {
         &self,
         element: &Shape,
         offset: Option<(f32, f32)>,
+        clip_inset: Option<f32>,
     ) -> Option<ClipStack> {
         if self.id.is_nil() || !element.clip() {
             return self.clip_bounds.clone();
@@ -138,6 +139,10 @@ impl NodeRenderState {
             _ => None,
         };
 
+        if let Some(clip_inset) = clip_inset.filter(|&e| e > 0.0) {
+            bounds.inset((clip_inset, clip_inset));
+        }
+
         Self::append_clip(self.clip_bounds.clone(), (bounds, corners, transform))
     }
 
@@ -2436,8 +2441,18 @@ impl RenderState {
             });
 
             if element.is_recursive() {
-                let children_clip_bounds =
-                    node_render_state.get_children_clip_bounds(element, None);
+                // Shrink the child clip by ~1 device px when the frame has an inner stroke, same
+                // epsilon as `fills::render` inset, so clipped overflow does not sit under the
+                // stroke band drawn later in `render_shape_exit`.
+                let clip_inset_for_children = (matches!(element.shape_type, Type::Frame(_))
+                    && element.clip()
+                    && element.has_inner_stroke())
+                .then_some(1.0 / scale);
+                let children_clip_bounds = node_render_state.get_children_clip_bounds(
+                    element,
+                    None,
+                    clip_inset_for_children,
+                );
 
                 let children_ids: Vec<_> = if can_flatten {
                     // Container was flattened: get simplified children (which skip this level)

render-wasm/src/render/fills.rs

@@ -3,15 +3,7 @@ use skia_safe::{self as skia, Paint, RRect};
 use super::{filters, RenderState, SurfaceId};
 use crate::error::Result;
 use crate::render::get_source_rect;
-use crate::shapes::{merge_fills, Fill, Frame, ImageFill, Rect, Shape, StrokeKind, Type};
-
-/// True when the shape has at least one visible inner stroke.
-fn has_inner_stroke(shape: &Shape) -> bool {
-    let is_open = shape.is_open();
-    shape
-        .visible_strokes()
-        .any(|s| s.render_kind(is_open) == StrokeKind::Inner)
-}
+use crate::shapes::{merge_fills, Fill, Frame, ImageFill, Rect, Shape, Type};
 
 fn draw_image_fill(
     render_state: &mut RenderState,
@@ -113,7 +105,7 @@ pub fn render(
     }
 
     let scale = render_state.get_scale().max(1e-6);
-    let inset = if has_inner_stroke(shape) {
+    let inset = if shape.has_inner_stroke() {
         Some(1.0 / scale)
     } else {
         None

render-wasm/src/shapes.rs

@@ -1605,6 +1605,13 @@ impl Shape {
             .count()
     }
 
+    /// True when the shape has at least one visible inner stroke (open paths render strokes as center).
+    pub fn has_inner_stroke(&self) -> bool {
+        let is_open = self.is_open();
+        self.visible_strokes()
+            .any(|s| s.render_kind(is_open) == StrokeKind::Inner)
+    }
+
     pub fn drop_shadow_paints(&self) -> Vec<skia_safe::Paint> {
         let drop_shadows: Vec<&Shadow> = self.drop_shadows_visible().collect();