refactor(observation): isolate document processing from capture orchestration

This commit is contained in:
Ljy-0827
2026-09-09 13:20:22 +08:00
committed by GitHub
parent 361f4603fe
commit e2b5acc904
17 changed files with 1273 additions and 2298 deletions
@@ -1,7 +1,7 @@
import { describe, expect, it, vi } from "vitest";
import { OVERLAY_HOST_MARKER_ATTR, OVERLAY_HOST_NAME } from "../../../lib/overlay-bridge";
import { collectOverlayExcludedBackendIds, probeHoverSurfaces } from "../capture";
import { captureObservationFacts, semanticCapture } from "../capture-coordinator";
import type { CdpRunner } from "../../shared";
import { captureViewModel, collectOverlayExcludedBackendIds, probeHoverSurfaces } from "../capture";
// Minimal but format-accurate captureSnapshot reply: a body with one
// fixed full-screen overlay div carrying a password input.
@@ -27,7 +27,6 @@ function fakeSnapshotReply() {
strings: S,
documents: [
{
frameId: "root",
nodes: {
parentIndex: [-1, 0, 1, 2],
nodeType: [1, 1, 1, 1],
@@ -75,7 +74,6 @@ function hoverTriggerSnapshotReply() {
strings: S,
documents: [
{
frameId: "root",
nodes: {
parentIndex: [-1, 0, 1],
nodeType: [1, 1, 1],
@@ -120,7 +118,6 @@ function twoHoverTriggerSnapshotReply() {
strings: S,
documents: [
{
frameId: "root",
nodes: {
parentIndex: [-1, 0, 1, 1],
nodeType: [1, 1, 1, 1],
@@ -174,7 +171,6 @@ function nestedHoverTriggerSnapshotReply() {
strings: S,
documents: [
{
frameId: "root",
nodes: {
parentIndex: [-1, 0, 1, 2, 3],
nodeType: [1, 1, 1, 1, 1],
@@ -248,11 +244,13 @@ function makeCdp(snapshot: unknown) {
};
}
describe("snapshot capture and hover", () => {
describe("captureViewModel", () => {
it("parses nodes, attrs, rects, paint order and styles", async () => {
const { nodes, viewport } = semanticCapture(
await captureObservationFacts(makeCdp(fakeSnapshotReply()), 4),
).captured;
const { nodes, viewport, iframeNodes } = await captureViewModel(
makeCdp(fakeSnapshotReply()),
4,
);
expect(iframeNodes.size).toBe(0);
expect(viewport).toEqual({ width: 1000, height: 800 });
const div = nodes.find((n) => n.backendNodeId === 12);
expect(div).toMatchObject({ tag: "div", position: "fixed", parentBackendNodeId: 11 });
@@ -264,11 +262,35 @@ describe("snapshot capture and hover", () => {
it("never hovers the page while capturing", async () => {
const cdp = makeCdp(fakeSnapshotReply());
semanticCapture(await captureObservationFacts(cdp, 4)).captured;
await captureViewModel(cdp, 4);
expect(cdp.send).not.toHaveBeenCalledWith(4, "Input.dispatchMouseEvent", expect.anything());
});
it("batch-enriches form controls without per-node object resolution", async () => {
const cdp = makeCdp(fakeSnapshotReply());
const result = await captureViewModel(cdp, 4);
const input = result.nodes.find((node) => node.backendNodeId === 13);
expect(input).toMatchObject({
formState: "filled",
formPlaceholder: "secret",
attrs: { type: "password" },
});
expect(input?.formValue).toBeUndefined();
expect(input?.formDefaultValue).toBeUndefined();
expect(cdp.send).toHaveBeenCalledWith(
4,
"Runtime.evaluate",
expect.objectContaining({
serializationOptions: expect.objectContaining({ serialization: "deep" }),
}),
);
expect(cdp.send).toHaveBeenCalledWith(4, "Runtime.releaseObjectGroup", expect.anything());
expect(cdp.send).not.toHaveBeenCalledWith(4, "DOM.resolveNode", expect.anything());
expect(cdp.send).not.toHaveBeenCalledWith(4, "Runtime.callFunctionOn", expect.anything());
});
it("runs hover surface probes when explicitly enabled", async () => {
let hoverStateCalls = 0;
const cdp = {
@@ -308,7 +330,7 @@ describe("snapshot capture and hover", () => {
}) as unknown as <T>(tabId: number, method: string, params?: object) => Promise<T>,
};
const captured = semanticCapture(await captureObservationFacts(cdp, 4)).captured;
const captured = await captureViewModel(cdp, 4);
const surfaceProbes = await probeHoverSurfaces(cdp, 4, captured.nodes);
expect(surfaceProbes).toEqual([
@@ -368,7 +390,7 @@ describe("snapshot capture and hover", () => {
}) as unknown as <T>(tabId: number, method: string, params?: object) => Promise<T>,
};
const captured = semanticCapture(await captureObservationFacts(cdp, 4)).captured;
const captured = await captureViewModel(cdp, 4);
const surfaceProbes = await probeHoverSurfaces(cdp, 4, captured.nodes);
expect(surfaceProbes).toEqual([
@@ -413,7 +435,7 @@ describe("snapshot capture and hover", () => {
}) as unknown as <T>(tabId: number, method: string, params?: object) => Promise<T>,
};
const captured = semanticCapture(await captureObservationFacts(cdp, 4)).captured;
const captured = await captureViewModel(cdp, 4);
await probeHoverSurfaces(cdp, 4, captured.nodes);
expect(hoverMoves).toBe(1);
@@ -445,7 +467,6 @@ describe("snapshot capture and hover", () => {
strings: S,
documents: [
{
frameId: "root",
nodes: {
parentIndex: [-1, 0, 1, 0, 3, 4],
nodeName: [i("html"), i("body"), i("div"), i(OVERLAY_HOST_NAME), i("div"), i("button")],
@@ -476,7 +497,7 @@ describe("snapshot capture and hover", () => {
],
};
const { nodes } = semanticCapture(await captureObservationFacts(makeCdp(snapshot), 4)).captured;
const { nodes } = await captureViewModel(makeCdp(snapshot), 4);
const ids = nodes.map((n) => n.backendNodeId);
// Real page nodes survive.
expect(ids).toContain(12);
@@ -507,7 +528,7 @@ describe("snapshot capture and hover", () => {
strings: S,
documents: [
{
frameId: "root",
frameId: "main",
nodes: {
parentIndex: [-1, 0, 1, 0, 3, 4],
nodeName: [i("html"), i("body"), i("div"), i(OVERLAY_HOST_NAME), i("div"), i("button")],
@@ -538,10 +559,12 @@ describe("snapshot capture and hover", () => {
],
};
const { excludedBackendNodeIds } = semanticCapture(
await captureObservationFacts(makeCdp(snapshot), 4),
).captured;
const { excludedBackendNodeIds, frameExcludedBackendNodeIds } = await captureViewModel(
makeCdp(snapshot),
4,
);
expect(excludedBackendNodeIds).toEqual(new Set([13, 14, 15]));
expect(frameExcludedBackendNodeIds?.get("main")).toEqual(excludedBackendNodeIds);
});
it("excludes overlay host matched by tag name only", async () => {
@@ -561,7 +584,6 @@ describe("snapshot capture and hover", () => {
strings: S,
documents: [
{
frameId: "root",
nodes: {
parentIndex: [-1, 0, 1],
nodeName: [i("html"), i("body"), i(OVERLAY_HOST_NAME)],
@@ -584,9 +606,7 @@ describe("snapshot capture and hover", () => {
],
};
const { nodes, excludedBackendNodeIds } = semanticCapture(
await captureObservationFacts(makeCdp(snapshot), 4),
).captured;
const { nodes, excludedBackendNodeIds } = await captureViewModel(makeCdp(snapshot), 4);
expect(nodes.map((n) => n.backendNodeId)).not.toContain(13);
expect(excludedBackendNodeIds).toEqual(new Set([13]));
});
@@ -609,7 +629,6 @@ describe("snapshot capture and hover", () => {
strings: S,
documents: [
{
frameId: "root",
nodes: {
parentIndex: [-1, 0, 1],
nodeName: [i("html"), i("body"), i("div")],
@@ -632,9 +651,7 @@ describe("snapshot capture and hover", () => {
],
};
const { nodes, excludedBackendNodeIds } = semanticCapture(
await captureObservationFacts(makeCdp(snapshot), 4),
).captured;
const { nodes, excludedBackendNodeIds } = await captureViewModel(makeCdp(snapshot), 4);
expect(nodes.map((n) => n.backendNodeId)).not.toContain(13);
expect(excludedBackendNodeIds).toEqual(new Set([13]));
});
@@ -657,7 +674,6 @@ describe("snapshot capture and hover", () => {
strings: S,
documents: [
{
frameId: "root",
nodes: {
parentIndex: [-1, 0, 1],
nodeName: [i("html"), i("body"), i("div")],
@@ -680,7 +696,7 @@ describe("snapshot capture and hover", () => {
},
],
};
const { nodes } = semanticCapture(await captureObservationFacts(makeCdp(snapshot), 4)).captured;
const { nodes } = await captureViewModel(makeCdp(snapshot), 4);
expect(nodes.find((n) => n.backendNodeId === 12)?.cursor).toBe("pointer");
expect(nodes.find((n) => n.backendNodeId === 11)?.cursor).toBe("auto");
});
@@ -692,7 +708,6 @@ describe("snapshot capture and hover", () => {
strings: S,
documents: [
{
frameId: "root",
nodes: {
parentIndex: [-1, 0, 1, 1, 1],
nodeName: [i("html"), i("body"), i("button"), i("button"), i("button")],
@@ -719,7 +734,7 @@ describe("snapshot capture and hover", () => {
],
};
const { nodes } = semanticCapture(await captureObservationFacts(makeCdp(snapshot), 4)).captured;
const { nodes } = await captureViewModel(makeCdp(snapshot), 4);
expect(nodes.find((node) => node.backendNodeId === 12)?.rendered).toBe(true);
expect(nodes.find((node) => node.backendNodeId === 13)?.rendered).toBe(false);
@@ -739,7 +754,7 @@ describe("snapshot capture and hover", () => {
throw new Error(method);
}) as unknown as <T>(tabId: number, method: string, params?: object) => Promise<T>,
};
const { nodes } = semanticCapture(await captureObservationFacts(cdp, 4)).captured;
const { nodes } = await captureViewModel(cdp, 4);
const div = nodes.find((n) => n.backendNodeId === 12);
expect(div?.localRect?.y).toBe(-200);
expect(div?.rect).toMatchObject({ y: 0, h: 600 });
@@ -752,7 +767,6 @@ describe("snapshot capture and hover", () => {
strings: S,
documents: [
{
frameId: "root",
nodes: {
parentIndex: [-1, 0, 1],
nodeName: [i("html"), i("body"), i("div")],
@@ -787,7 +801,7 @@ describe("snapshot capture and hover", () => {
throw new Error(method);
}) as unknown as <T>(tabId: number, method: string, params?: object) => Promise<T>,
};
const { nodes } = semanticCapture(await captureObservationFacts(cdp, 4)).captured;
const { nodes } = await captureViewModel(cdp, 4);
expect(nodes.find((n) => n.backendNodeId === 12)?.rect).toEqual({
x: 0,
y: 0,
@@ -823,7 +837,6 @@ describe("snapshot capture and hover", () => {
strings: S,
documents: [
{
frameId: "root",
scrollOffsetX: 0,
scrollOffsetY: 0,
nodes: {
@@ -862,7 +875,7 @@ describe("snapshot capture and hover", () => {
throw new Error(method);
}) as unknown as <T>(tabId: number, method: string, params?: object) => Promise<T>,
};
const { nodes } = semanticCapture(await captureObservationFacts(cdp, 4)).captured;
const { nodes } = await captureViewModel(cdp, 4);
const btn = nodes.find((n) => n.backendNodeId === 12);
expect(btn?.textContent).toBe("登录");
const link = nodes.find((n) => n.backendNodeId === 14);
@@ -872,7 +885,7 @@ describe("snapshot capture and hover", () => {
expect(body?.textContent).toBeUndefined();
});
it("retains explicit iframe document ownership and projected nodes", async () => {
it("parses iframe sub-documents and returns iframeNodes keyed by iframe backendNodeId", async () => {
const S = [
"html",
"body",
@@ -958,21 +971,30 @@ describe("snapshot capture and hover", () => {
throw new Error(method);
}) as unknown as <T>(tabId: number, method: string, params?: object) => Promise<T>,
};
const facts = await captureObservationFacts(cdp, 4);
const root = facts.documents.find((doc) => doc.frame.frameId === "main-frame")!;
const child = facts.documents.find((doc) => doc.frame.frameId === "child-frame")!;
expect(facts.documents).toHaveLength(2);
expect(root.domNodes.find((n) => n.backendNodeId === 13)?.tag).toBe("iframe");
const subNodes = child.domNodes;
const {
nodes,
iframeNodes,
frameNodes,
frameOwnerBackendNodeIds,
frameParentIds,
rootFrameId,
} = await captureViewModel(cdp, 4);
// Main frame has 4 nodes; iframe is included
expect(nodes.find((n) => n.backendNodeId === 13)?.tag).toBe("iframe");
// iframeNodes keyed by the <iframe> element's backendNodeId=13
expect(iframeNodes.size).toBe(1);
expect(iframeNodes.has(13)).toBe(true);
const subNodes = iframeNodes.get(13)!;
const input = subNodes.find((n) => n.backendNodeId === 101);
expect(input?.tag).toBe("input");
expect(input?.attrs.type).toBe("text");
expect(input?.ownerFrameBackendNodeId).toBe(13);
expect(input?.localRect).toEqual({ x: 0, y: 0, w: 200, h: 40 });
expect(input?.rect).toEqual({ x: 100, y: 300, w: 200, h: 40 });
expect(facts.rootFrameId).toBe("main-frame");
expect(child.frame.ownerBackendNodeId).toBe(13);
expect(child.frame.parentFrameId).toBe("main-frame");
expect(rootFrameId).toBe("main-frame");
expect(frameNodes?.get("child-frame")).toBe(subNodes);
expect(frameOwnerBackendNodeIds?.get("child-frame")).toBe(13);
expect(frameParentIds?.get("child-frame")).toBe("main-frame");
});
it("projects iframe documents independently of owner snapshot geometry", async () => {
@@ -993,7 +1015,6 @@ describe("snapshot capture and hover", () => {
strings: S,
documents: [
{
frameId: "root",
scrollOffsetX: 0,
scrollOffsetY: 0,
nodes: {
@@ -1011,7 +1032,6 @@ describe("snapshot capture and hover", () => {
},
},
{
frameId: "child",
scrollOffsetX: 0,
scrollOffsetY: 0,
nodes: {
@@ -1048,10 +1068,8 @@ describe("snapshot capture and hover", () => {
}) as unknown as <T>(tabId: number, method: string, params?: object) => Promise<T>,
};
const { documents } = await captureObservationFacts(cdp, 4);
const input = documents
.find((doc) => doc.frame.frameId === "child")
?.domNodes?.find((n) => n.backendNodeId === 101);
const { iframeNodes } = await captureViewModel(cdp, 4);
const input = iframeNodes.get(13)?.find((n) => n.backendNodeId === 101);
expect(input?.localRect).toEqual({ x: 20, y: 20, w: 120, h: 60 });
expect(input?.rect).toEqual({ x: 120, y: 320, w: 120, h: 60 });
@@ -1075,7 +1093,6 @@ describe("snapshot capture and hover", () => {
strings: S,
documents: [
{
frameId: "root",
nodes: {
parentIndex: [-1, 0, 1],
nodeName: [i("html"), i("body"), i("iframe")],
@@ -1097,7 +1114,6 @@ describe("snapshot capture and hover", () => {
},
},
{
frameId: "child",
nodes: {
parentIndex: [-1, 0, 1],
nodeName: [i("html"), i("body"), i("iframe")],
@@ -1119,7 +1135,6 @@ describe("snapshot capture and hover", () => {
},
},
{
frameId: "nested",
nodes: {
parentIndex: [-1, 0],
nodeName: [i("body"), i("input")],
@@ -1175,13 +1190,9 @@ describe("snapshot capture and hover", () => {
) as unknown as <T>(tabId: number, method: string, params?: object) => Promise<T>,
};
const { documents } = await captureObservationFacts(cdp, 4);
const nestedIframe = documents
.find((doc) => doc.frame.frameId === "child")
?.domNodes?.find((n) => n.backendNodeId === 23);
const input = documents
.find((doc) => doc.frame.frameId === "nested")
?.domNodes?.find((n) => n.backendNodeId === 31);
const { iframeNodes } = await captureViewModel(cdp, 4);
const nestedIframe = iframeNodes.get(13)?.find((n) => n.backendNodeId === 23);
const input = iframeNodes.get(23)?.find((n) => n.backendNodeId === 31);
expect(nestedIframe?.localRect).toEqual({ x: 5, y: 6, w: 100, h: 80 });
expect(nestedIframe?.rect).toEqual({ x: 15, y: 26, w: 100, h: 80 });
@@ -1197,7 +1208,6 @@ describe("snapshot capture and hover", () => {
strings: S,
documents: [
{
frameId: "root",
nodes: {
parentIndex: [-1, 0, 1],
nodeName: [i("html"), i("body"), i("div")],
@@ -1232,7 +1242,7 @@ describe("snapshot capture and hover", () => {
throw new Error(method);
}) as unknown as <T>(tabId: number, method: string, params?: object) => Promise<T>,
};
const { nodes } = semanticCapture(await captureObservationFacts(cdp, 4)).captured;
const { nodes } = await captureViewModel(cdp, 4);
expect(nodes.find((n) => n.backendNodeId === 12)?.rect?.y).toBe(400 - 100);
});