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refactor(style): isolate live viewport resolution

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This commit is contained in:
ldm0
2026-08-24 18:56:48 +08:00
committed by Donough Liu
parent d92c638592
commit bf4d73cf1e
1 changed files with 33 additions and 24 deletions
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moli-renderer-v8/src/native_bridge/element/styles.rs
+33 -24
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@@ -340,34 +340,43 @@ fn style_object_computation_context<'s>(
style: v8::Local<'s, v8::Object>,
) -> StyleComputationContext {
let read_document = style_object_read_document(scope, style);
let viewport = bridge_handle_from_object(scope, style)
.ok()
.and_then(|(runtime_ptr, bridge_handle)| {
let runtime = unsafe { &*runtime_ptr };
match bridge_handle {
BridgeHandle::ComputedStyle(handle, descriptor) => match descriptor.target {
ComputedStyleTargetKey::Dynamic => runtime
.dom_host()
.owner_document_handle(handle)
.or(read_document)
.map(|document| style_viewport_for_document(runtime, document)),
ComputedStyleTargetKey::ChildFrame(frame_handle) => {
iframe_handle_viewport(runtime, frame_handle)
}
ComputedStyleTargetKey::DetachedIframe(_)
| ComputedStyleTargetKey::PopupDocument(_) => None,
},
BridgeHandle::Window
| BridgeHandle::Node(_)
| BridgeHandle::ClassList(_, _)
| BridgeHandle::Dataset(_)
| BridgeHandle::Style(_) => None,
}
})
let viewport = live_computed_style_viewport(scope, style)
.unwrap_or_else(|| style_object_viewport(scope, style));
StyleComputationContext::new(viewport).with_read_document(read_document)
}
fn live_computed_style_viewport<'s>(
scope: &mut v8::PinScope<'s, '_>,
style: v8::Local<'s, v8::Object>,
) -> Option<StyleViewport> {
let Ok((runtime_ptr, BridgeHandle::ComputedStyle(handle, descriptor))) =
bridge_handle_from_object(scope, style)
else {
return None;
};
let runtime = unsafe { &*runtime_ptr };
match descriptor.target {
ComputedStyleTargetKey::Dynamic => {
if let Some(frame) = computed_style_target_child_frame_handle(scope, runtime, handle) {
return iframe_handle_viewport(runtime, frame);
}
if !computed_style_target_is_in_flat_tree(runtime, handle) {
return None;
}
let document = runtime.dom_host().owner_document_handle(handle)?;
Some(style_viewport_for_document(runtime, document))
}
ComputedStyleTargetKey::ChildFrame(frame)
if child_frame_target_document_is_current(runtime, handle, frame) =>
{
iframe_handle_viewport(runtime, frame)
}
ComputedStyleTargetKey::ChildFrame(_)
| ComputedStyleTargetKey::DetachedIframe(_)
| ComputedStyleTargetKey::PopupDocument(_) => None,
}
}
fn style_object_property_count_with_context<'s>(
scope: &mut v8::PinScope<'s, '_>,
style: v8::Local<'s, v8::Object>,