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fix(extension): support iframe content in VOM observations

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This commit is contained in:
Ljy-0827
2026-08-18 19:18:39 +08:00
committed by GitHub
parent a9489282fa
commit 8d7c0aa66c
13 changed files with 1276 additions and 117 deletions
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packages/vom/src/layers.ts
+12 -2
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@@ -50,10 +50,18 @@ function classifyLayer(
return blockerCoverage >= MASK_COVERAGE_THRESHOLD ? "mask" : "modal";
}
export function detectBlockingLayer(nodes: VomNode[], vp: Viewport): BlockingLayer | null {
export function detectBlockingLayer(
nodes: VomNode[],
vp: Viewport,
rootFrameId?: string,
): BlockingLayer | null {
let blocker: { node: VomNode; coverage: number } | null = null;
for (const node of nodes) {
// A document's paint order is local to its iframe stacking context. Only
// the root document can establish a page-level blocking layer; child
// documents are constrained by their iframe owner in the parent document.
if (rootFrameId !== undefined && node.frameId !== rootFrameId) continue;
if (!isBlockingCandidate(node)) continue;
const cov = coverage(node.rect, vp);
const qualifies = cov >= BLOCK_COVERAGE_THRESHOLD || (hasModalFeature(node) && cov >= 0.15);
@@ -72,7 +80,9 @@ export function detectBlockingLayer(nodes: VomNode[], vp: Viewport): BlockingLay
const threshold = blocker.node.paintOrder;
const members = new Set<number>();
for (const node of nodes) {
if (node.paintOrder >= threshold) members.add(node.id);
if (node.frameId === blocker.node.frameId && node.paintOrder >= threshold) {
members.add(node.id);
}
}
return {