Merge pull request #126 from NianJiuZst/codex/focus-blur-primitive

feat(interaction): add explicit focus and blur primitives
This commit is contained in:
Zhang GH
2026-09-09 23:23:50 +08:00
committed by GitHub
28 changed files with 1789 additions and 26 deletions
@@ -599,6 +599,70 @@ describe("ToolDispatcher", () => {
expect(onSessionsChanged).toHaveBeenCalledTimes(2);
});
it.each([
"focus",
"blur",
] as const)("routes %s with hover cleanup and cooperative cancellation", async (action) => {
const tab = { id: 7, windowId: 4242, active: true };
vi.stubGlobal("chrome", {
tabs: {
get: vi.fn(async () => tab),
query: vi.fn(async () => [tab]),
sendMessage: vi.fn(async () => undefined),
},
});
const sessions = new SessionManager({
agentWindow: {
create: async () => 4242,
remove: async () => {},
ensureActiveTab: async () => 7,
},
});
const ctx = await sessions.start("aa11");
ctx.refStore.set("e1", 12, { tabId: 7 });
const { transport, sent, deliver } = fakeTransport();
const onBrowserControlResumed = vi.fn();
let resolveNode: ((value: object) => void) | undefined;
const cdp = {
send: vi.fn(async (_tabId: number, method: string) => {
if (method === "DOM.resolveNode")
return new Promise((resolve) => {
resolveNode = resolve;
});
if (method === "Runtime.callFunctionOn") return { result: { value: true } };
return {};
}),
} as unknown as TestDispatcherCdp;
const dispatcher = new ToolDispatcher({ transport, sessions, cdp, onBrowserControlResumed });
const hover = dispatcher as unknown as {
rememberHover: (sessionId: string, result: object) => void;
setHoverBypass: (sessionId: string, tabId: number, enabled: boolean) => Promise<void>;
};
hover.rememberHover("aa11", { tab_id: 7, x: 10, y: 20 });
await hover.setHoverBypass("aa11", 7, true);
dispatcher.start();
deliver(makeRequest(`tool.${action}`, { session_id: "aa11", ref: "e1" }));
await vi.waitFor(() => expect(resolveNode).toBeDefined());
expect(onBrowserControlResumed).toHaveBeenCalledWith("aa11");
deliver({ id: "cancel-focus", method: "cancel", params: { rpc_id: "r-1" } });
resolveNode!({ object: { objectId: "focus-target" } });
await vi.waitFor(() => expect(sent).toHaveLength(2));
expect(sent).toContainEqual({ id: "cancel-focus", result: { cancelled: true } });
expect(sent).toContainEqual({
id: "r-1",
error: expect.objectContaining({ code: "cancelled" }),
});
expect(cdp.send).not.toHaveBeenCalledWith(7, "DOM.focus", expect.anything());
expect(cdp.send).not.toHaveBeenCalledWith(7, "Runtime.callFunctionOn", expect.anything());
expect(cdp.send).toHaveBeenCalledWith(7, "Runtime.releaseObject", { objectId: "focus-target" });
expect(chrome.tabs.sendMessage).toHaveBeenCalledWith(
7,
expect.objectContaining({ enabled: false }),
);
expect(dispatcher.inflightAbortControllers.size).toBe(0);
dispatcher.stop();
});
it("invokes onBrowserControlResumed for browser-control tools but not passive reads", async () => {
vi.stubGlobal("chrome", {
tabs: {
@@ -0,0 +1,166 @@
// @vitest-environment node
// Opt in with BSK_FOCUS_CHROME=/path/to/chrome; each test owns its browser/profile.
import { describe, expect, it } from "vitest";
import { SessionManager } from "@/session-manager/manager";
import { handleBlur, handleFocus } from "../interaction";
import type { CdpRunner } from "../shared";
type Send = <T = Record<string, unknown>>(
method: string,
params?: object,
sessionId?: string,
) => Promise<T>;
async function withFocusBrowser(
run: (h: {
evaluate: (expression: string) => Promise<unknown>;
ref: () => Promise<void>;
focus: (signal?: AbortSignal) => ReturnType<typeof handleFocus>;
blur: (signal?: AbortSignal) => ReturnType<typeof handleBlur>;
calls: string[];
afterCommand: { current: (method: string) => void };
}) => Promise<void>,
) {
// Reuse the existing isolated Chrome launcher; no new browser dependency.
const { withChrome } = await import(
new URL(
"../../../../../evals/browser/cases/regression/snapshot-coordinates/chrome.mjs",
import.meta.url,
).href
);
await withChrome(
{ executable: process.env.BSK_FOCUS_CHROME, deviceScale: 1, zoom: 1 },
async (send: Send) => {
const { targetId } = await send<{ targetId: string }>("Target.createTarget", {
url: "about:blank",
});
const { sessionId } = await send<{ sessionId: string }>("Target.attachToTarget", {
targetId,
flatten: true,
});
await send("Page.bringToFront", {}, sessionId);
const evaluate = async (expression: string) => {
const reply = await send<{ result: { value: unknown }; exceptionDetails?: unknown }>(
"Runtime.evaluate",
{ expression, returnByValue: true },
sessionId,
);
expect(reply.exceptionDetails).toBeUndefined();
return reply.result.value;
};
await evaluate(
`document.body.innerHTML = '<input id="target"><input id="other">'; window.probe = document.querySelector('#target');`,
);
const manager = new SessionManager({
agentWindow: {
create: async () => 100,
remove: async () => {},
ensureActiveTab: async () => 4,
},
});
const ctx = await manager.start("aa11");
const calls: string[] = [];
const afterCommand = { current: (_method: string) => {} };
const cdp: CdpRunner = {
send: async (_tabId, method, params) => {
calls.push(method);
const result = await send(method, params, sessionId);
afterCommand.current(method);
return result as never;
},
};
const deps = {
cdp,
tabsApi: {
get: async (id: number) => ({ id, windowId: 100, active: true }) as chrome.tabs.Tab,
query: async () => [{ id: 4, windowId: 100, active: true } as chrome.tabs.Tab],
},
};
await run({
evaluate,
calls,
afterCommand,
ref: async () => {
const { result } = await send<{ result: { objectId: string } }>(
"Runtime.evaluate",
{ expression: "window.probe" },
sessionId,
);
const { node } = await send<{ node: { backendNodeId: number } }>(
"DOM.describeNode",
{ objectId: result.objectId },
sessionId,
);
await send("Runtime.releaseObject", { objectId: result.objectId }, sessionId);
ctx.refStore.set("e1", node.backendNodeId, { tabId: 4 });
},
focus: (signal) =>
handleFocus(manager, { session_id: "aa11", ref: "e1" }, { ...deps, signal }),
blur: (signal) =>
handleBlur(manager, { session_id: "aa11", ref: "e1" }, { ...deps, signal }),
});
},
);
}
describe.skipIf(!process.env.BSK_FOCUS_CHROME)("real browser focus and blur", () => {
it.each(["light", "open", "closed"])("verifies focus and blur in %s DOM", async (mode) => {
await withFocusBrowser(async (h) => {
if (mode !== "light")
await h.evaluate(`(() => {
const host = document.createElement('div'); document.body.append(host);
const nested = document.createElement('div'); host.attachShadow({mode:'${mode}'}).append(nested);
const input = document.createElement('input'); nested.attachShadow({mode:'${mode}'}).append(input);
window.probe = input;
})()`);
await h.ref();
expect(await h.focus()).toMatchObject({ focused: true });
expect(await h.evaluate("window.probe.matches(':focus')")).toBe(true);
expect(await h.blur()).toMatchObject({ was_focused: true, focused: false });
expect(await h.evaluate("window.probe.matches(':focus')")).toBe(false);
expect(h.calls.filter((method) => method === "Runtime.releaseObject")).toHaveLength(2);
});
});
it("detects focus changes from event-handler microtasks", async () => {
await withFocusBrowser(async (h) => {
await h.ref();
await h.evaluate(
"window.probe.addEventListener('focus', () => queueMicrotask(() => document.querySelector('#other').focus()), {once:true})",
);
expect(await h.focus()).toMatchObject({ code: "cdp_failed" });
expect(await h.focus()).toMatchObject({ focused: true });
await h.evaluate(
"window.probe.addEventListener('blur', () => queueMicrotask(() => window.probe.focus()), {once:true})",
);
expect(await h.blur()).toMatchObject({ code: "cdp_failed" });
expect(await h.evaluate("window.probe.matches(':focus')")).toBe(true);
});
});
it("cancels before blur while still releasing the resolved object", async () => {
await withFocusBrowser(async (h) => {
await h.ref();
await h.focus();
const abort = new AbortController();
h.afterCommand.current = (method) => {
if (method === "DOM.resolveNode") abort.abort();
};
expect(await h.blur(abort.signal)).toMatchObject({ code: "cancelled" });
expect(await h.evaluate("window.probe.matches(':focus')")).toBe(true);
expect(h.calls.at(-1)).toBe("Runtime.releaseObject");
});
});
it("reports a page exception with its cause", async () => {
await withFocusBrowser(async (h) => {
await h.ref();
await h.evaluate("window.probe.blur = () => { throw new Error('page blur failed'); }");
expect(await h.blur()).toMatchObject({
code: "cdp_failed",
message: expect.stringContaining("page blur failed"),
});
expect(h.calls.at(-1)).toBe("Runtime.releaseObject");
});
});
});
@@ -0,0 +1,293 @@
import { afterEach, describe, expect, it, vi } from "vitest";
import type { CdpTarget } from "@/browser-driver/frame-graph";
import { SessionManager } from "@/session-manager/manager";
import { handleBlur, handleFocus } from "../interaction";
import type { CdpRunner } from "../shared";
interface ScriptParams {
functionDeclaration: string;
}
interface Call {
target: CdpTarget;
method: string;
}
async function setup(element?: HTMLElement, childSession = false) {
if (!element) {
document.body.innerHTML = '<input id="target"><input id="other">';
element = document.querySelector<HTMLInputElement>("#target")!;
}
const targetElement = element;
const manager = new SessionManager({
agentWindow: {
create: async () => 100,
remove: async () => {},
ensureActiveTab: async () => 4,
},
});
const ctx = await manager.start("aa11");
ctx.refStore.set("e1", 12, {
tabId: 4,
...(childSession ? { frameId: "child", cdpSessionId: "child-session" } : {}),
});
const calls: Call[] = [];
const afterCommand = vi.fn<(call: Call) => void>();
const script = vi.fn(async (params: ScriptParams) => {
try {
const fn = new Function(`return (${params.functionDeclaration})`)();
return { result: { value: await fn.call(targetElement) } };
} catch (error) {
return { exceptionDetails: { text: "Uncaught", exception: { description: String(error) } } };
}
});
const focus = vi.fn(() => targetElement.focus());
const release = vi.fn(async () => ({}));
const send = async (target: CdpTarget, method: string, params?: object) => {
const call = { target, method };
calls.push(call);
try {
switch (method) {
case "DOM.getDocument":
return { root: { nodeId: 1 } };
case "DOM.querySelector":
return { nodeId: 2 };
case "DOM.describeNode":
return { node: { backendNodeId: 12 } };
case "DOM.scrollIntoViewIfNeeded":
return {};
case "DOM.resolveNode":
return { object: { objectId: "focus-target" } };
case "DOM.focus":
focus();
return {};
case "Runtime.callFunctionOn":
return await script(params as ScriptParams);
case "Runtime.releaseObject":
return await release();
default:
throw new Error(`unexpected ${method}`);
}
} finally {
afterCommand(call);
}
};
const cdp: CdpRunner = {
send: (tabId, method, params) => send({ tabId }, method, params) as never,
sendToTarget: send as CdpRunner["sendToTarget"],
getFrameGraph: vi.fn(async () => ({
rootFrameId: "main",
frames: [
{ frameId: "main", target: { tabId: 4 } },
...(childSession
? [
{
frameId: "child",
parentFrameId: "main",
ownerBackendNodeId: 99,
target: { tabId: 4, sessionId: "child-session" },
},
]
: []),
],
})),
};
const tabsApi = {
get: vi.fn(async (id: number) => ({ id, windowId: 100, active: true }) as chrome.tabs.Tab),
query: vi.fn(async () => [{ id: 4, windowId: 100, active: true } as chrome.tabs.Tab]),
};
return {
element: targetElement,
calls,
afterCommand,
script,
focus,
release,
cdp,
tabsApi,
run: (
action: "focus" | "blur",
signal?: AbortSignal,
params: { ref?: string; selector?: string; tab_id?: number } = { ref: "e1" },
) =>
(action === "focus" ? handleFocus : handleBlur)(
manager,
{ session_id: "aa11", ...params },
{ cdp, tabsApi, signal },
),
};
}
afterEach(() => {
vi.restoreAllMocks();
document.body.innerHTML = "";
});
describe("focus and blur state verification", () => {
it.each(["open", "closed"] as const)("handles nested %s shadow roots", async (mode) => {
const host = document.createElement("div");
document.body.append(host);
const outer = host.attachShadow({ mode });
const innerHost = document.createElement("div");
outer.append(innerHost);
const inner = innerHost.attachShadow({ mode });
const element = document.createElement("input");
inner.append(element);
const h = await setup(element);
expect(await h.run("focus")).toMatchObject({ focused: true });
expect(inner.activeElement).toBe(element);
expect(await h.run("blur")).toMatchObject({ was_focused: true, focused: false });
expect(inner.activeElement).toBeNull();
expect(h.release).toHaveBeenCalledTimes(2);
});
it("keeps DOM focus usable when the document is in the background", async () => {
const h = await setup();
vi.spyOn(document, "hasFocus").mockReturnValue(false);
expect(await h.run("focus")).toMatchObject({ focused: true });
expect(await h.run("blur")).toMatchObject({ was_focused: true, focused: false });
});
it("blurring an unfocused target preserves the other element's focus", async () => {
const h = await setup();
const other = document.querySelector<HTMLInputElement>("#other")!;
other.focus();
expect(await h.run("blur")).toMatchObject({ was_focused: false, focused: false });
expect(document.activeElement).toBe(other);
});
it("detects focus redirected by a focus handler's microtask", async () => {
const h = await setup();
h.element.addEventListener("focus", () =>
queueMicrotask(() => document.querySelector<HTMLInputElement>("#other")!.focus()),
);
expect(await h.run("focus")).toMatchObject({
code: "cdp_failed",
message: "target element did not become focused",
});
expect(h.release).toHaveBeenCalledOnce();
});
it("does not report blur success when a microtask restores focus", async () => {
const h = await setup();
h.element.focus();
h.element.addEventListener("blur", () => queueMicrotask(() => h.element.focus()));
expect(await h.run("blur")).toMatchObject({
code: "cdp_failed",
message: "target element remained focused after blur()",
});
expect(document.activeElement).toBe(h.element);
expect(h.release).toHaveBeenCalledOnce();
});
it.each(["focus", "blur"] as const)("rejects a detached %s target", async (action) => {
const h = await setup();
h.element.remove();
expect(await h.run(action)).toMatchObject({ code: "cdp_failed" });
expect(h.release).toHaveBeenCalledOnce();
});
it("preserves a script exception's cause", async () => {
const h = await setup();
vi.spyOn(h.element, "blur").mockImplementation(() => {
throw new Error("page blur failed");
});
expect(await h.run("blur")).toMatchObject({
code: "cdp_failed",
message: expect.stringContaining("page blur failed"),
});
expect(h.release).toHaveBeenCalledOnce();
});
it.each(["focus", "blur"] as const)("rejects malformed %s script results", async (action) => {
const h = await setup();
h.script.mockResolvedValueOnce({ result: { value: null } });
expect(await h.run(action)).toMatchObject({
code: "cdp_failed",
message: expect.stringContaining("unexpected result"),
});
expect(h.release).toHaveBeenCalledOnce();
});
it.each([
"focus",
"blur",
] as const)("keeps %s, verification and cleanup in the OOPIF session", async (action) => {
const h = await setup(undefined, true);
if (action === "blur") h.element.focus();
expect(await h.run(action)).toMatchObject({ focused: action === "focus" });
const targetCalls = h.calls.filter((call) => call.method !== "DOM.scrollIntoViewIfNeeded");
expect(targetCalls.every((call) => call.target.sessionId === "child-session")).toBe(true);
expect(targetCalls.at(-1)?.method).toBe("Runtime.releaseObject");
});
it.each(["focus", "blur"] as const)("rejects %s on a user tab before CDP", async (action) => {
const h = await setup();
h.tabsApi.get.mockResolvedValue({ id: 9, windowId: 200, active: true } as chrome.tabs.Tab);
expect(await h.run(action, undefined, { ref: "e1", tab_id: 9 })).toMatchObject({
code: "permission_denied",
});
expect(h.calls).toEqual([]);
});
it("does not replace a successful result when navigation disposed the remote object", async () => {
const h = await setup();
h.release.mockRejectedValue(new Error("Cannot find context"));
expect(await h.run("focus")).toMatchObject({ focused: true });
});
});
describe("focus and blur cancellation", () => {
const boundaries = [
"DOM.getDocument",
"DOM.querySelector",
"DOM.describeNode",
"DOM.resolveNode",
"Runtime.callFunctionOn",
];
for (const action of ["focus", "blur"] as const) {
it.each(
action === "focus" ? [...boundaries, "DOM.scrollIntoViewIfNeeded", "DOM.focus"] : boundaries,
)(`${action} stops after cancellation during %s`, async (method) => {
const h = await setup();
const abort = new AbortController();
let cancelledAfter = 0;
h.afterCommand.mockImplementation((call) => {
if (call.method === method && !abort.signal.aborted) {
cancelledAfter = h.calls.length;
abort.abort();
}
});
expect(await h.run(action, abort.signal, { selector: "#target" })).toMatchObject({
code: "cancelled",
});
expect(abort.signal.aborted).toBe(true);
expect(
h.calls.slice(cancelledAfter).every((call) => call.method === "Runtime.releaseObject"),
).toBe(true);
if (h.calls.some((call) => call.method === "DOM.resolveNode"))
expect(h.release).toHaveBeenCalledOnce();
});
it(`${action} stops if cancellation arrives while resolving the tab`, async () => {
const h = await setup();
const abort = new AbortController();
h.tabsApi.query.mockImplementation(async () => {
abort.abort();
return [{ id: 4, windowId: 100, active: true } as chrome.tabs.Tab];
});
expect(await h.run(action, abort.signal)).toMatchObject({ code: "cancelled" });
expect(h.calls).toEqual([]);
});
}
it("does not scroll frame owners after cancellation in an OOPIF", async () => {
const h = await setup(undefined, true);
const abort = new AbortController();
h.afterCommand.mockImplementation((call) => {
if (call.method === "DOM.scrollIntoViewIfNeeded") abort.abort();
});
expect(await h.run("focus", abort.signal)).toMatchObject({ code: "cancelled" });
expect(h.calls.filter((call) => call.method === "DOM.scrollIntoViewIfNeeded")).toHaveLength(1);
expect(h.focus).not.toHaveBeenCalled();
});
});
@@ -2,8 +2,10 @@ import { describe, expect, it, vi } from "vitest";
import { SessionManager } from "@/session-manager/manager";
import type { CdpRunner } from "@/tools/shared";
import {
handleBlur,
handleClick,
handleFill,
handleFocus,
handleHover,
handlePress,
handleSelect,
@@ -542,6 +544,161 @@ describe("handleHover", () => {
});
});
describe("handleFocus and handleBlur", () => {
it("focuses a ref and verifies the deep active element", async () => {
const sm = new SessionManager({ agentWindow: fakeAgentWindow([100]) });
const ctx = await sm.start("aa11");
ctx.refStore.set("e3", 1234, { tabId: 4 });
const fake = makeFakeCdp({
"DOM.scrollIntoViewIfNeeded": () => ({}),
"DOM.focus": () => ({}),
"DOM.resolveNode": () => ({ object: { objectId: "focus-target" } }),
"Runtime.callFunctionOn": () => ({ result: { value: true } }),
});
const res = await handleFocus(
sm,
{ session_id: "aa11", ref: "@e3" },
{ cdp: fake.cdp, tabsApi: fake.tabsApi },
);
if ("code" in res) throw new Error(`unexpected error: ${JSON.stringify(res)}`);
expect(res).toMatchObject({ tab_id: 4, used_ref: "e3", focused: true });
expect(fake.sent.map((call) => call.method)).toEqual([
"DOM.scrollIntoViewIfNeeded",
"DOM.resolveNode",
"DOM.focus",
"Runtime.callFunctionOn",
"Runtime.releaseObject",
]);
});
it("focuses an OOPIF ref in its CDP session", async () => {
const sm = new SessionManager({ agentWindow: fakeAgentWindow([100]) });
const ctx = await sm.start("aa11");
ctx.refStore.set("e3", 1234, {
tabId: 4,
frameId: "child-frame",
cdpSessionId: "child-session",
});
const fake = makeFakeCdp({
"DOM.scrollIntoViewIfNeeded": () => ({}),
});
fake.cdp.getFrameGraph = vi.fn(async () => ({
rootFrameId: "main",
frames: [
{ frameId: "main", target: { tabId: 4 } },
{
frameId: "child-frame",
parentFrameId: "main",
ownerBackendNodeId: 99,
target: { tabId: 4, sessionId: "child-session" },
},
],
}));
const targetCalls: Array<{ sessionId?: string; method: string }> = [];
fake.cdp.sendToTarget = vi.fn(async (target, method) => {
targetCalls.push({ sessionId: target.sessionId, method });
if (method === "DOM.scrollIntoViewIfNeeded") return {};
if (method === "DOM.focus" || method === "Runtime.releaseObject") return {};
if (method === "DOM.resolveNode") return { object: { objectId: "focus-target" } };
if (method === "Runtime.callFunctionOn") return { result: { value: true } };
throw new Error(`unexpected child CDP call ${method}`);
}) as CdpRunner["sendToTarget"];
const res = await handleFocus(
sm,
{ session_id: "aa11", ref: "@e3" },
{ cdp: fake.cdp, tabsApi: fake.tabsApi },
);
if ("code" in res) throw new Error(`unexpected error: ${JSON.stringify(res)}`);
expect(res.focused).toBe(true);
expect(targetCalls).toEqual([
{ sessionId: "child-session", method: "DOM.scrollIntoViewIfNeeded" },
{ sessionId: "child-session", method: "DOM.resolveNode" },
{ sessionId: "child-session", method: "DOM.focus" },
{ sessionId: "child-session", method: "Runtime.callFunctionOn" },
{ sessionId: "child-session", method: "Runtime.releaseObject" },
]);
});
it("does not focus after cancellation during scrolling", async () => {
const sm = new SessionManager({ agentWindow: fakeAgentWindow([100]) });
const ctx = await sm.start("aa11");
ctx.refStore.set("e3", 1234, { tabId: 4 });
const abort = new AbortController();
const fake = makeFakeCdp({
"DOM.scrollIntoViewIfNeeded": () => {
abort.abort();
return {};
},
});
const res = await handleFocus(
sm,
{ session_id: "aa11", ref: "@e3" },
{ cdp: fake.cdp, tabsApi: fake.tabsApi, signal: abort.signal },
);
expect(res).toMatchObject({ code: "cancelled" });
expect(fake.sent.some((call) => call.method === "DOM.focus")).toBe(false);
});
it("blurs a ref and returns its previous focus state", async () => {
const sm = new SessionManager({ agentWindow: fakeAgentWindow([100]) });
const ctx = await sm.start("aa11");
ctx.refStore.set("e3", 1234, { tabId: 4 });
const fake = makeFakeCdp({
"DOM.resolveNode": () => ({ object: { objectId: "focus-target" } }),
"Runtime.callFunctionOn": vi
.fn()
.mockResolvedValueOnce({ result: { value: { ok: true, was_focused: true } } })
.mockResolvedValueOnce({ result: { value: false } }),
});
const res = await handleBlur(
sm,
{ session_id: "aa11", ref: "@e3" },
{ cdp: fake.cdp, tabsApi: fake.tabsApi },
);
if ("code" in res) throw new Error(`unexpected error: ${JSON.stringify(res)}`);
expect(res).toMatchObject({
tab_id: 4,
used_ref: "e3",
was_focused: true,
focused: false,
});
expect(fake.sent.map((call) => call.method)).toEqual([
"DOM.resolveNode",
"Runtime.callFunctionOn",
"Runtime.callFunctionOn",
"Runtime.releaseObject",
]);
});
it("rejects a target that does not implement blur", async () => {
const sm = new SessionManager({ agentWindow: fakeAgentWindow([100]) });
const ctx = await sm.start("aa11");
ctx.refStore.set("e3", 1234, { tabId: 4 });
const fake = makeFakeCdp({
"DOM.resolveNode": () => ({ object: { objectId: "focus-target" } }),
"Runtime.callFunctionOn": () => ({
result: { value: { ok: false, was_focused: false, focused: false } },
}),
});
const res = await handleBlur(
sm,
{ session_id: "aa11", ref: "@e3" },
{ cdp: fake.cdp, tabsApi: fake.tabsApi },
);
expect(res).toMatchObject({ code: "invalid_params", message: /does not support blur/ });
});
});
function successfulFillScript(params: unknown) {
const script = params as { arguments?: Array<{ value: unknown }>; functionDeclaration: string };
const args = script.arguments ?? [];
+35 -1
View File
@@ -2,12 +2,14 @@ import { OVERLAY_AUTOMATION_BYPASS } from "@/lib/overlay-bridge";
import type { SessionManager } from "@/session-manager/manager";
import type { Transport } from "@/transport/transport";
import type {
BlurParams,
ClickParams,
ConsoleParams,
DownloadParams,
EmulateParams,
EvaluateParams,
FillParams,
FocusParams,
GetHtmlParams,
HoverParams,
HoverResult,
@@ -39,7 +41,15 @@ import { type EmulateCdpRunner, handleEmulate } from "./emulate";
import { classifyCdpError } from "./errors";
import { handleEvaluate } from "./evaluate";
import { handleRequestHelp } from "./human-loop";
import { handleClick, handleFill, handleHover, handlePress, handleSelect } from "./interaction";
import {
handleBlur,
handleClick,
handleFill,
handleFocus,
handleHover,
handlePress,
handleSelect,
} from "./interaction";
import {
handleNavigate,
handleNavigateBack,
@@ -515,6 +525,28 @@ export class ToolDispatcher {
);
return this.rememberHover((req.params as HoverParams).session_id, result);
}
case "tool.focus":
return this.withHoverReleaseForRequest(
req.params as FocusParams,
() =>
handleFocus(
this.sessions,
req.params as FocusParams,
this.cdp ? { cdp: this.cdp, tabsApi: chromeTabsApi, signal } : undefined,
),
signal,
);
case "tool.blur":
return this.withHoverReleaseForRequest(
req.params as BlurParams,
() =>
handleBlur(
this.sessions,
req.params as BlurParams,
this.cdp ? { cdp: this.cdp, tabsApi: chromeTabsApi, signal } : undefined,
),
signal,
);
case "tool.fill":
return this.withHoverReleaseForRequest(
req.params as FillParams,
@@ -785,6 +817,8 @@ function sessionIdForBrowserControlMethod(req: RequestFrame): string | null {
case "tool.reload":
case "tool.click":
case "tool.hover":
case "tool.focus":
case "tool.blur":
case "tool.fill":
case "tool.press":
case "tool.select":
+206 -2
View File
@@ -1,5 +1,4 @@
// DOM interaction tools — `tool.click`, `tool.fill`, `tool.press`, and
// `tool.select`.
// DOM interaction tools — click, hover, focus/blur, fill, press, and select.
//
// All interaction tools:
// 1. Resolve target tab (sandbox: must be inside Agent Window).
@@ -14,10 +13,14 @@ import { ChromiumCdp } from "@/browser-driver/chromium-cdp";
import type { CdpTarget } from "@/browser-driver/frame-graph";
import type { SessionContext, SessionManager } from "@/session-manager/manager";
import type {
BlurParams,
BlurResult,
ClickParams,
ClickResult,
FillParams,
FillResult,
FocusParams,
FocusResult,
HoverParams,
HoverResult,
KeyModifier,
@@ -227,6 +230,207 @@ export async function resolveBackendNode(
}
}
// Check the target's own root, then its hosts: closed shadow roots are not
// reachable via host.shadowRoot. DOM focus remains meaningful in background tabs.
const FOCUS_CHECK = `function() {
if (!this.isConnected) return false;
let element = this;
while (element) {
const root = element.getRootNode();
if (root.activeElement !== element) return false;
element = root.host;
}
return true;
}`;
const BLUR_TARGET = `function() {
if (!this.isConnected) throw new Error('blur target is detached');
const wasFocused = (${FOCUS_CHECK}).call(this);
if (typeof this.blur !== 'function') return { ok: false, was_focused: wasFocused };
this.blur();
return { ok: true, was_focused: wasFocused };
}`;
interface FocusScriptReply<T> {
result?: { value?: T };
exceptionDetails?: { text?: string; exception?: { description?: string } };
}
function checkFocusAbort(signal: AbortSignal | undefined): void {
if (signal?.aborted) throw new DOMException("interaction aborted", "AbortError");
}
// Only focus/blur use this view. Guard every CDP boundary, including commands
// inside selector resolution and frame scrolling, without changing other tools.
function focusCdp(cdp: CdpRunner, signal: AbortSignal | undefined): CdpRunner {
const send = <T = unknown>(target: CdpTarget, method: string, params?: object): Promise<T> => {
checkFocusAbort(signal);
return cdpRunnerForTarget(cdp, target).send<T>(target.tabId, method, params);
};
return {
send: (tabId, method, params) => send({ tabId }, method, params),
sendToTarget: send,
trackSessionTab: cdp.trackSessionTab?.bind(cdp),
getFrameGraph: cdp.getFrameGraph
? (tabId) => {
checkFocusAbort(signal);
return cdp.getFrameGraph!(tabId);
}
: undefined,
};
}
// ---------------------------------------------------------------------------
// tool.focus / tool.blur
// ---------------------------------------------------------------------------
export function handleFocus(
manager: SessionManager,
params: FocusParams,
deps: InteractionDeps = getDefaultDeps(),
): Promise<FocusResult | RpcError> {
return changeFocus(manager, params, deps, "focus");
}
export function handleBlur(
manager: SessionManager,
params: BlurParams,
deps: InteractionDeps = getDefaultDeps(),
): Promise<BlurResult | RpcError> {
return changeFocus(manager, params, deps, "blur");
}
function changeFocus(
manager: SessionManager,
params: FocusParams,
deps: InteractionDeps,
action: "focus",
): Promise<FocusResult | RpcError>;
function changeFocus(
manager: SessionManager,
params: BlurParams,
deps: InteractionDeps,
action: "blur",
): Promise<BlurResult | RpcError>;
async function changeFocus(
manager: SessionManager,
params: FocusParams | BlurParams,
deps: InteractionDeps,
action: "focus" | "blur",
): Promise<FocusResult | BlurResult | RpcError> {
const ctx = lookupSession(manager, params, action);
if (isRpcError(ctx)) return ctx;
const cdp = focusCdp(deps.cdp, deps.signal);
let objectId: string | undefined;
let cleanupCdp: CdpRunner | undefined;
let tabId: number | undefined;
try {
checkFocusAbort(deps.signal);
const target = await resolveTargetTab(manager, ctx, params.tab_id, deps.tabsApi);
checkFocusAbort(deps.signal);
if (isRpcError(target)) return target;
const denied = enforceAgentWindow(ctx, target, action);
if (denied) return denied;
tabId = target.tabId;
const dialogCursor = markDialogCursor(deps.cdp, tabId);
const node = await resolveBackendNode(cdp, ctx, target, params, action);
checkFocusAbort(deps.signal);
if (isRpcError(node)) return node;
const nodeCdp = cdpRunnerForTarget(cdp, node.cdpTarget);
cleanupCdp = cdpRunnerForTarget(deps.cdp, node.cdpTarget);
deps.cdp.trackSessionTab?.(ctx.sessionId, tabId);
if (action === "focus") {
const scrollErr = await scrollElementAndFramesIntoView(
cdp,
tabId,
node.cdpTarget,
node.backendNodeId,
node.frameId,
);
checkFocusAbort(deps.signal);
if (scrollErr) return scrollErr;
}
const resolved = await backendNodeToObject(nodeCdp, tabId, node.backendNodeId);
// Keep the handle before checking cancellation so finally can release it.
if (!isRpcError(resolved)) objectId = resolved;
checkFocusAbort(deps.signal);
if (isRpcError(resolved)) return resolved;
const runScript = async <T>(functionDeclaration: string): Promise<T | undefined> => {
const reply = await nodeCdp.send<FocusScriptReply<T>>(
target.tabId,
"Runtime.callFunctionOn",
{
objectId,
functionDeclaration,
returnByValue: true,
},
);
checkFocusAbort(deps.signal);
if (reply.exceptionDetails) {
const details = reply.exceptionDetails;
throw new Error(
`${action} script failed: ${details.exception?.description ?? details.text ?? "unknown exception"}`,
);
}
return reply.result?.value;
};
let wasFocused: boolean | undefined;
if (action === "focus") {
await nodeCdp.send(tabId, "DOM.focus", { backendNodeId: node.backendNodeId });
checkFocusAbort(deps.signal);
} else {
const mutation = await runScript<{ ok: boolean; was_focused: boolean }>(BLUR_TARGET);
if (typeof mutation?.ok !== "boolean" || typeof mutation.was_focused !== "boolean") {
throw new Error("blur script returned an unexpected result");
}
if (!mutation.ok) {
return { code: "invalid_params", message: "target element does not support blur()" };
}
wasFocused = mutation.was_focused;
}
// Use a separate call so microtasks from focus/blur handlers finish before
// we report success. In particular, a blur handler can restore focus.
const focused = await runScript<boolean>(FOCUS_CHECK);
if (typeof focused !== "boolean") {
throw new Error(`${action} verification returned an unexpected result`);
}
if (focused !== (action === "focus")) {
throw new Error(
action === "focus"
? "target element did not become focused"
: "target element remained focused after blur()",
);
}
return attachDialogs(deps.cdp, tabId, dialogCursor, {
tab_id: tabId,
used_ref: node.usedRef,
used_selector: node.usedSelector,
focused,
...(action === "blur" ? { was_focused: wasFocused! } : {}),
});
} catch (err) {
return (
throwIfAborted(deps.signal) ?? {
code: "cdp_failed",
message: err instanceof Error ? err.message : String(err),
}
);
} finally {
if (objectId !== undefined && cleanupCdp && tabId !== undefined) {
// Cleanup must also run after cancellation. Navigation may have already
// disposed the object, which must not replace the operation's result.
try {
await cleanupCdp.send(tabId, "Runtime.releaseObject", { objectId });
} catch {
// The target or execution context may no longer exist.
}
}
}
}
export async function resolveActionTarget(
cdp: CdpRunner,
ctx: SessionContext,
+33
View File
@@ -470,6 +470,39 @@ export interface HoverResult {
dialogs?: JavaScriptDialogInfo[];
}
export interface FocusParams {
session_id: string;
ref?: string;
selector?: string;
tab_id?: number;
timeout_ms?: number;
}
export interface FocusResult {
tab_id: number;
used_ref?: string;
used_selector?: string;
focused: boolean;
dialogs?: JavaScriptDialogInfo[];
}
export interface BlurParams {
session_id: string;
ref?: string;
selector?: string;
tab_id?: number;
timeout_ms?: number;
}
export interface BlurResult {
tab_id: number;
used_ref?: string;
used_selector?: string;
was_focused: boolean;
focused: boolean;
dialogs?: JavaScriptDialogInfo[];
}
export interface FillParams {
session_id: string;
value: string;
+5 -2
View File
@@ -55,10 +55,13 @@ Use this default loop:
```text
bsk navigate <url> --session <id>
bsk observe --session <id>
bsk click|hover|fill|select|press ... --session <id>
bsk click|hover|focus|blur|fill|select|press ... --session <id>
bsk observe --session <id> # after navigation or a meaningful DOM change
```
`bsk focus <ref>` explicitly focuses a target; `bsk blur <ref>` removes focus and reports whether
it was focused. Use these for UI states triggered by focus changes.
Prefer fresh `@eN` refs over CSS selectors. Navigation invalidates refs; large DOM changes may also
make them stale. Observe again before the next interaction.
@@ -114,7 +117,7 @@ This list of names is complete. Never invent a command outside it; read
session start|stop|list browsers status doctor update logs
navigate navigate-back navigate-forward reload wait-for-navigation wait-ms
observe snapshot get-html screenshot console network
click hover fill select press evaluate
click hover focus blur fill select press evaluate
tab list|create|close|select|borrow|return window resize emulate
upload download request-help record start|stop
```
+123 -3
View File
@@ -1,4 +1,5 @@
//! `bsk click` / `bsk fill` / `bsk press` (M7 interaction tools).
//! `bsk click` / `bsk focus` / `bsk blur` / `bsk fill` / `bsk press`
//! interaction tools.
//!
//! The `<target>` positional accepts either a snapshot ref (`@e3`,
//! `e3`) or a CSS selector. Use `--ref` / `--selector` explicitly when
@@ -10,8 +11,9 @@ use std::time::Duration;
use anyhow::Context;
use bsk_protocol::Method;
use bsk_protocol::tools::{
ClickParams, ClickResult, FillParams, FillResult, HoverParams, HoverResult, KeyModifier,
MouseButton, PressParams, PressResult, SelectParams, SelectResult,
BlurParams, BlurResult, ClickParams, ClickResult, FillParams, FillResult, FocusParams,
FocusResult, HoverParams, HoverResult, KeyModifier, MouseButton, PressParams, PressResult,
SelectParams, SelectResult,
};
use clap::{Args, ValueEnum};
@@ -274,6 +276,124 @@ pub fn dispatch_hover(args: HoverArgs, format: Format) -> Result<(), CliError> {
Ok(())
}
// ---------------------------------------------------------------------------
// bsk focus / bsk blur
// ---------------------------------------------------------------------------
#[derive(Debug, Clone, Args)]
pub struct FocusArgs {
/// Snapshot ref (`@e3`, `e3`) or CSS selector. Optional when `--ref`/`--selector` is used.
pub target: Option<String>,
#[arg(long = "ref")]
pub ref_: Option<String>,
#[arg(long = "selector")]
pub selector: Option<String>,
#[arg(long)]
pub session: String,
#[arg(long = "tab-id")]
pub tab_id: Option<i64>,
#[arg(long, default_value = "30s", value_parser = parse_timeout_ms)]
pub timeout: u32,
}
pub fn dispatch_focus(args: FocusArgs, format: Format) -> Result<(), CliError> {
let info = ensure_daemon().context("ensure daemon is running")?;
let (ref_, selector) = split_target(args.target, args.ref_, args.selector)?;
let params = FocusParams {
session_id: args.session,
ref_,
selector,
tab_id: args.tab_id,
timeout_ms: Some(args.timeout),
};
let reply: FocusResult = call(
info.sock_path,
Method::ToolFocus,
params,
"focus-1",
args.timeout,
)?;
match format {
Format::Json => println!(
"{}",
serde_json::to_string_pretty(&reply)
.map_err(|e| CliError::Local(anyhow::anyhow!(e)))?
),
Format::Human => {
let target =
format_used_target(reply.used_ref.as_deref(), reply.used_selector.as_deref());
println!(
"focus ok tab={} target={target} focused={}",
reply.tab_id, reply.focused
);
print_dialog_summaries(&reply.dialogs);
}
}
Ok(())
}
#[derive(Debug, Clone, Args)]
pub struct BlurArgs {
/// Snapshot ref (`@e3`, `e3`) or CSS selector. Optional when `--ref`/`--selector` is used.
pub target: Option<String>,
#[arg(long = "ref")]
pub ref_: Option<String>,
#[arg(long = "selector")]
pub selector: Option<String>,
#[arg(long)]
pub session: String,
#[arg(long = "tab-id")]
pub tab_id: Option<i64>,
#[arg(long, default_value = "30s", value_parser = parse_timeout_ms)]
pub timeout: u32,
}
pub fn dispatch_blur(args: BlurArgs, format: Format) -> Result<(), CliError> {
let info = ensure_daemon().context("ensure daemon is running")?;
let (ref_, selector) = split_target(args.target, args.ref_, args.selector)?;
let params = BlurParams {
session_id: args.session,
ref_,
selector,
tab_id: args.tab_id,
timeout_ms: Some(args.timeout),
};
let reply: BlurResult = call(
info.sock_path,
Method::ToolBlur,
params,
"blur-1",
args.timeout,
)?;
match format {
Format::Json => println!(
"{}",
serde_json::to_string_pretty(&reply)
.map_err(|e| CliError::Local(anyhow::anyhow!(e)))?
),
Format::Human => {
let target =
format_used_target(reply.used_ref.as_deref(), reply.used_selector.as_deref());
println!(
"blur ok tab={} target={target} was_focused={} focused={}",
reply.tab_id, reply.was_focused, reply.focused
);
print_dialog_summaries(&reply.dialogs);
}
}
Ok(())
}
// ---------------------------------------------------------------------------
// bsk fill
// ---------------------------------------------------------------------------
+9 -1
View File
@@ -47,7 +47,9 @@ use crate::cli::evaluate::EvaluateArgs;
use crate::cli::get_html::GetHtmlArgs;
use crate::cli::human_loop::RequestHelpArgs;
use crate::cli::install_skill::InstallSkillArgs;
use crate::cli::interaction::{ClickArgs, FillArgs, HoverArgs, PressArgs, SelectArgs};
use crate::cli::interaction::{
BlurArgs, ClickArgs, FillArgs, FocusArgs, HoverArgs, PressArgs, SelectArgs,
};
use crate::cli::navigate::{NavigateCommand, NavigateHistoryArgs, ReloadArgs};
use crate::cli::network::NetworkArgs;
use crate::cli::observe::ObserveArgs;
@@ -173,6 +175,12 @@ pub enum Command {
/// Hover a snapshot ref or CSS selector.
Hover(HoverArgs),
/// Focus a snapshot ref or CSS selector.
Focus(FocusArgs),
/// Remove focus from a snapshot ref or CSS selector.
Blur(BlurArgs),
/// Fill an input / textarea / contenteditable.
Fill(FillArgs),
+2
View File
@@ -253,6 +253,8 @@ pub fn full_handler(status: DaemonStatus, state: Arc<DaemonState>) -> RpcHandler
| Method::ToolReload
| Method::ToolClick
| Method::ToolHover
| Method::ToolFocus
| Method::ToolBlur
| Method::ToolFill
| Method::ToolPress
| Method::ToolSelect
+2
View File
@@ -94,6 +94,8 @@ fn dispatch(cli: Cli, format: Format) -> Result<(), CliError> {
Command::Reload(args) => cli::navigate::dispatch_reload(args, format),
Command::Click(args) => cli::interaction::dispatch_click(args, format),
Command::Hover(args) => cli::interaction::dispatch_hover(args, format),
Command::Focus(args) => cli::interaction::dispatch_focus(args, format),
Command::Blur(args) => cli::interaction::dispatch_blur(args, format),
Command::Fill(args) => cli::interaction::dispatch_fill(args, format),
Command::Press(args) => cli::interaction::dispatch_press(args, format),
Command::Select(args) => cli::interaction::dispatch_select(args, format),
+18
View File
@@ -255,6 +255,24 @@ fn parses_hover_with_settle() {
assert_eq!(args.settle, 300);
}
#[test]
fn parses_focus_target() {
let cli = parse(&["bsk", "focus", "@e2", "--session", "s1"]);
let Command::Focus(args) = cli.command else {
panic!("expected focus command");
};
assert_eq!(args.target.as_deref(), Some("@e2"));
}
#[test]
fn parses_blur_selector() {
let cli = parse(&["bsk", "blur", "--selector", "#search", "--session", "s1"]);
let Command::Blur(args) = cli.command else {
panic!("expected blur command");
};
assert_eq!(args.selector.as_deref(), Some("#search"));
}
#[test]
fn rejects_zero_click_count() {
assert!(
+92 -6
View File
@@ -1,5 +1,4 @@
//! M7 integration: drive the 7 new tool RPCs (navigate /
//! navigate_back / navigate_forward / reload / click / fill / press)
//! M7 integration: drive interaction and navigation tool RPCs
//! through the IPC + per-session queue + fake extension and assert
//! the wire shapes line up. The extension stub mirrors each method's
//! `*Result` so we exercise the daemon's serialise → forward →
@@ -13,10 +12,11 @@ use bsk::daemon::{self, DaemonConfig};
use bsk::ipc_client::IpcClient;
use bsk_protocol::system::{HandshakeParams, HandshakeResult};
use bsk_protocol::tools::{
ClickParams, ClickResult, FillParams, FillResult, KeyModifier, MouseButton, NavigateBackParams,
NavigateBackResult, NavigateForwardParams, NavigateForwardResult, NavigateParams,
NavigateResult, PressParams, PressResult, ReloadParams, ReloadResult, SelectParams,
SelectResult, SessionStartParams, SessionStartResult, WaitUntil,
BlurParams, BlurResult, ClickParams, ClickResult, FillParams, FillResult, FocusParams,
FocusResult, KeyModifier, MouseButton, NavigateBackParams, NavigateBackResult,
NavigateForwardParams, NavigateForwardResult, NavigateParams, NavigateResult, PressParams,
PressResult, ReloadParams, ReloadResult, SelectParams, SelectResult, SessionStartParams,
SessionStartResult, WaitUntil,
};
use bsk_protocol::{
BrowserPeerInfo, ErrorCode, Frame, Method, RequestFrame, ResponseBody, ResponseFrame, RpcError,
@@ -382,6 +382,92 @@ async fn click_round_trips_ref_and_modifiers() {
handle.shutdown().await;
}
#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
async fn focus_round_trips_verified_state() {
let (handle, sock) = spawn_daemon().await;
let mut ws = connect_ext(handle.ws_addr()).await;
let _ = do_handshake(&mut ws).await;
run_extension(ws, |req| {
assert_eq!(req.method, Method::ToolFocus);
let params = req.params.clone().unwrap();
let p: FocusParams = serde_json::from_value(params).unwrap();
assert_eq!(p.ref_.as_deref(), Some("@e3"));
ResponseBody::Ok(
serde_json::to_value(FocusResult {
tab_id: 9,
used_ref: Some("e3".into()),
used_selector: None,
focused: true,
dialogs: vec![],
})
.unwrap(),
)
});
let session_id = ipc_session_start(&sock).await;
let result: FocusResult = ipc_tool_call(
&sock,
Method::ToolFocus,
FocusParams {
session_id,
ref_: Some("@e3".into()),
selector: None,
tab_id: None,
timeout_ms: Some(5_000),
},
)
.await
.expect("focus ok");
assert!(result.focused);
assert_eq!(result.used_ref.as_deref(), Some("e3"));
handle.shutdown().await;
}
#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
async fn blur_round_trips_previous_focus_state() {
let (handle, sock) = spawn_daemon().await;
let mut ws = connect_ext(handle.ws_addr()).await;
let _ = do_handshake(&mut ws).await;
run_extension(ws, |req| {
assert_eq!(req.method, Method::ToolBlur);
let params = req.params.clone().unwrap();
let p: BlurParams = serde_json::from_value(params).unwrap();
assert_eq!(p.selector.as_deref(), Some("#search"));
ResponseBody::Ok(
serde_json::to_value(BlurResult {
tab_id: 9,
used_ref: None,
used_selector: Some("#search".into()),
was_focused: true,
focused: false,
dialogs: vec![],
})
.unwrap(),
)
});
let session_id = ipc_session_start(&sock).await;
let result: BlurResult = ipc_tool_call(
&sock,
Method::ToolBlur,
BlurParams {
session_id,
ref_: None,
selector: Some("#search".into()),
tab_id: None,
timeout_ms: Some(5_000),
},
)
.await
.expect("blur ok");
assert!(result.was_focused);
assert!(!result.focused);
assert_eq!(result.used_selector.as_deref(), Some("#search"));
handle.shutdown().await;
}
#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
async fn fill_round_trips_clear_before_default() {
let (handle, sock) = spawn_daemon().await;
@@ -0,0 +1,42 @@
{
"$schema": "http://json-schema.org/draft-07/schema#",
"title": "BlurParams",
"type": "object",
"required": [
"session_id"
],
"properties": {
"ref": {
"description": "Optional `@e<N>` ref allocated by the last observation. Mutually exclusive with `selector`.",
"type": [
"string",
"null"
]
},
"selector": {
"type": [
"string",
"null"
]
},
"session_id": {
"type": "string"
},
"tab_id": {
"description": "Target tab. Defaults to the Agent Window's active tab.",
"type": [
"integer",
"null"
],
"format": "int64"
},
"timeout_ms": {
"type": [
"integer",
"null"
],
"format": "uint32",
"minimum": 1.0
}
}
}
@@ -0,0 +1,112 @@
{
"$schema": "http://json-schema.org/draft-07/schema#",
"title": "BlurResult",
"type": "object",
"required": [
"focused",
"tab_id",
"was_focused"
],
"properties": {
"dialogs": {
"type": "array",
"items": {
"$ref": "#/definitions/JavaScriptDialogInfo"
}
},
"focused": {
"description": "Always false for a successful blur; included for machine verification.",
"type": "boolean"
},
"tab_id": {
"type": "integer",
"format": "int64"
},
"used_ref": {
"type": [
"string",
"null"
]
},
"used_selector": {
"type": [
"string",
"null"
]
},
"was_focused": {
"description": "Whether the target held focus before the call.",
"type": "boolean"
}
},
"definitions": {
"JavaScriptDialogHandledAction": {
"description": "How the extension resolved the dialog so CDP could continue.",
"type": "string",
"enum": [
"accepted",
"dismissed"
]
},
"JavaScriptDialogInfo": {
"description": "One observed + handled JavaScript dialog during a tool call.",
"type": "object",
"required": [
"handled",
"message",
"sequence",
"tab_id",
"type"
],
"properties": {
"default_prompt": {
"type": [
"string",
"null"
]
},
"handled": {
"$ref": "#/definitions/JavaScriptDialogHandledAction"
},
"has_browser_handler": {
"type": [
"boolean",
"null"
]
},
"message": {
"type": "string"
},
"sequence": {
"description": "Monotonic per-tab sequence for ordering within a session.",
"type": "integer",
"format": "uint64",
"minimum": 0.0
},
"tab_id": {
"type": "integer",
"format": "int64"
},
"type": {
"$ref": "#/definitions/JavaScriptDialogType"
},
"url": {
"type": [
"string",
"null"
]
}
}
},
"JavaScriptDialogType": {
"description": "Native JS dialog kind reported by CDP.",
"type": "string",
"enum": [
"alert",
"confirm",
"prompt",
"beforeunload"
]
}
}
}
@@ -0,0 +1,42 @@
{
"$schema": "http://json-schema.org/draft-07/schema#",
"title": "FocusParams",
"type": "object",
"required": [
"session_id"
],
"properties": {
"ref": {
"description": "Optional `@e<N>` ref allocated by the last observation. Mutually exclusive with `selector`.",
"type": [
"string",
"null"
]
},
"selector": {
"type": [
"string",
"null"
]
},
"session_id": {
"type": "string"
},
"tab_id": {
"description": "Target tab. Defaults to the Agent Window's active tab.",
"type": [
"integer",
"null"
],
"format": "int64"
},
"timeout_ms": {
"type": [
"integer",
"null"
],
"format": "uint32",
"minimum": 1.0
}
}
}
@@ -0,0 +1,107 @@
{
"$schema": "http://json-schema.org/draft-07/schema#",
"title": "FocusResult",
"type": "object",
"required": [
"focused",
"tab_id"
],
"properties": {
"dialogs": {
"type": "array",
"items": {
"$ref": "#/definitions/JavaScriptDialogInfo"
}
},
"focused": {
"description": "Whether the target holds DOM focus in its document or shadow root after the call.",
"type": "boolean"
},
"tab_id": {
"type": "integer",
"format": "int64"
},
"used_ref": {
"type": [
"string",
"null"
]
},
"used_selector": {
"type": [
"string",
"null"
]
}
},
"definitions": {
"JavaScriptDialogHandledAction": {
"description": "How the extension resolved the dialog so CDP could continue.",
"type": "string",
"enum": [
"accepted",
"dismissed"
]
},
"JavaScriptDialogInfo": {
"description": "One observed + handled JavaScript dialog during a tool call.",
"type": "object",
"required": [
"handled",
"message",
"sequence",
"tab_id",
"type"
],
"properties": {
"default_prompt": {
"type": [
"string",
"null"
]
},
"handled": {
"$ref": "#/definitions/JavaScriptDialogHandledAction"
},
"has_browser_handler": {
"type": [
"boolean",
"null"
]
},
"message": {
"type": "string"
},
"sequence": {
"description": "Monotonic per-tab sequence for ordering within a session.",
"type": "integer",
"format": "uint64",
"minimum": 0.0
},
"tab_id": {
"type": "integer",
"format": "int64"
},
"type": {
"$ref": "#/definitions/JavaScriptDialogType"
},
"url": {
"type": [
"string",
"null"
]
}
}
},
"JavaScriptDialogType": {
"description": "Native JS dialog kind reported by CDP.",
"type": "string",
"enum": [
"alert",
"confirm",
"prompt",
"beforeunload"
]
}
}
}
@@ -79,6 +79,10 @@ fn main() {
dump!(ClickResult, "tool_click_result");
dump!(HoverParams, "tool_hover_params");
dump!(HoverResult, "tool_hover_result");
dump!(FocusParams, "tool_focus_params");
dump!(FocusResult, "tool_focus_result");
dump!(BlurParams, "tool_blur_params");
dump!(BlurResult, "tool_blur_result");
dump!(FillParams, "tool_fill_params");
dump!(FillResult, "tool_fill_result");
dump!(PressParams, "tool_press_params");
+12
View File
@@ -72,6 +72,10 @@ pub enum Method {
ToolClick,
#[serde(rename = "tool.hover")]
ToolHover,
#[serde(rename = "tool.focus")]
ToolFocus,
#[serde(rename = "tool.blur")]
ToolBlur,
#[serde(rename = "tool.fill")]
ToolFill,
#[serde(rename = "tool.press")]
@@ -168,6 +172,8 @@ impl Method {
| Method::ToolNavigateForward
| Method::ToolReload
| Method::ToolClick
| Method::ToolFocus
| Method::ToolBlur
| Method::ToolFill
| Method::ToolPress
| Method::ToolSelect
@@ -305,6 +311,8 @@ mod tests {
assert!(Method::ToolNavigateForward.is_mutating());
assert!(Method::ToolReload.is_mutating());
assert!(Method::ToolClick.is_mutating());
assert!(Method::ToolFocus.is_mutating());
assert!(Method::ToolBlur.is_mutating());
assert!(Method::ToolFill.is_mutating());
assert!(Method::ToolPress.is_mutating());
assert!(Method::ToolSelect.is_mutating());
@@ -349,6 +357,8 @@ mod tests {
assert_eq!(Method::ToolHover.effect(), MethodEffect::TransientInput);
assert_eq!(Method::ToolObserve.effect(), MethodEffect::TransientInput);
assert_eq!(Method::ToolClick.effect(), MethodEffect::BrowserMutation);
assert_eq!(Method::ToolFocus.effect(), MethodEffect::BrowserMutation);
assert_eq!(Method::ToolBlur.effect(), MethodEffect::BrowserMutation);
assert_eq!(Method::Cancel.effect(), MethodEffect::ControlPlane);
}
@@ -358,6 +368,8 @@ mod tests {
assert!(Method::ToolHover.requires_interrupt_gate());
assert!(Method::ToolObserve.requires_interrupt_gate());
assert!(Method::ToolClick.requires_interrupt_gate());
assert!(Method::ToolFocus.requires_interrupt_gate());
assert!(Method::ToolBlur.requires_interrupt_gate());
assert!(!Method::Cancel.requires_interrupt_gate());
}
}
+109 -2
View File
@@ -1,5 +1,5 @@
//! DOM interaction tools (`tool.click`, `tool.fill`, `tool.press`,
//! `tool.select`).
//! DOM interaction tools (`tool.click`, `tool.hover`, `tool.focus`,
//! `tool.blur`, `tool.fill`, `tool.press`, `tool.select`).
//!
//! Element-targeted tools accept either a snapshot `ref` (`@e<N>` form,
//! normalised against the session's RefStore) **or** a CSS selector
@@ -131,6 +131,82 @@ pub struct HoverResult {
pub dialogs: Vec<JavaScriptDialogInfo>,
}
// ---------------------------------------------------------------------------
// focus / blur
// ---------------------------------------------------------------------------
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize, JsonSchema)]
pub struct FocusParams {
pub session_id: String,
/// Optional `@e<N>` ref allocated by the last observation.
/// Mutually exclusive with `selector`.
#[serde(
rename = "ref",
alias = "ref_",
default,
skip_serializing_if = "Option::is_none"
)]
pub ref_: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub selector: Option<String>,
/// Target tab. Defaults to the Agent Window's active tab.
#[serde(default, skip_serializing_if = "Option::is_none")]
pub tab_id: Option<i64>,
#[serde(default, skip_serializing_if = "Option::is_none")]
#[schemars(range(min = 1))]
pub timeout_ms: Option<u32>,
}
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize, JsonSchema)]
pub struct FocusResult {
pub tab_id: i64,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub used_ref: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub used_selector: Option<String>,
/// Whether the target holds DOM focus in its document or shadow root after the call.
pub focused: bool,
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub dialogs: Vec<JavaScriptDialogInfo>,
}
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize, JsonSchema)]
pub struct BlurParams {
pub session_id: String,
/// Optional `@e<N>` ref allocated by the last observation.
/// Mutually exclusive with `selector`.
#[serde(
rename = "ref",
alias = "ref_",
default,
skip_serializing_if = "Option::is_none"
)]
pub ref_: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub selector: Option<String>,
/// Target tab. Defaults to the Agent Window's active tab.
#[serde(default, skip_serializing_if = "Option::is_none")]
pub tab_id: Option<i64>,
#[serde(default, skip_serializing_if = "Option::is_none")]
#[schemars(range(min = 1))]
pub timeout_ms: Option<u32>,
}
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize, JsonSchema)]
pub struct BlurResult {
pub tab_id: i64,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub used_ref: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub used_selector: Option<String>,
/// Whether the target held focus before the call.
pub was_focused: bool,
/// Always false for a successful blur; included for machine verification.
pub focused: bool,
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub dialogs: Vec<JavaScriptDialogInfo>,
}
// ---------------------------------------------------------------------------
// fill
// ---------------------------------------------------------------------------
@@ -325,6 +401,37 @@ mod tests {
assert_eq!(round, p);
}
#[test]
fn focus_params_serialise_ref_field_name() {
let p = FocusParams {
session_id: "abcd".into(),
ref_: Some("@e4".into()),
selector: None,
tab_id: Some(42),
timeout_ms: Some(5_000),
};
let v = serde_json::to_value(&p).unwrap();
assert_eq!(v.get("ref").and_then(|v| v.as_str()), Some("@e4"));
assert!(v.get("ref_").is_none());
let round: FocusParams = serde_json::from_value(v).unwrap();
assert_eq!(round, p);
}
#[test]
fn blur_result_round_trips_focus_state() {
let result = BlurResult {
tab_id: 42,
used_ref: Some("e4".into()),
used_selector: None,
was_focused: true,
focused: false,
dialogs: vec![],
};
let value = serde_json::to_value(&result).unwrap();
let round: BlurResult = serde_json::from_value(value).unwrap();
assert_eq!(round, result);
}
#[test]
fn modifiers_render_as_lowercase_strings() {
let v = serde_json::to_value(KeyModifier::Ctrl).unwrap();
+1 -1
View File
@@ -54,7 +54,7 @@ the `bsk` CLI and browser extension separately when a release requires it.
| `browser_session` | `start`, `stop`, `list` | Manage plugin-owned Agent Window sessions. |
| `browser_page` | `navigate`, `back`, `forward`, `reload`, `wait` | Navigate the active tab and wait for page lifecycle events. |
| `browser_inspect` | `observe`, `snapshot`, `html`, `screenshot`, `console`, `network` | Read semantic or diagnostic page state and capture screenshots. |
| `browser_interact` | `click`, `hover`, `fill`, `select`, `press` | Interact with controls using fresh refs or selectors. |
| `browser_interact` | `click`, `hover`, `focus`, `blur`, `fill`, `select`, `press` | Interact with controls using fresh refs or selectors. |
| `browser_tabs` | `list`, `create`, `select`, `close`, `borrow`, `return` | Manage Agent Window tabs and temporarily borrow user tabs. |
| `browser_assist` | `resize`, `emulate`, `request-help` | Resize or emulate the browser and pause for human-only steps. |
@@ -51,8 +51,8 @@ Use `browser_inspect` action `observe` as the primary semantic page view. It ret
text, and `@eN` refs. Prefer fresh refs over raw selectors. Refs invalidate after navigation and may
also become stale after large DOM changes, so observe again before the next interaction.
Use `browser_interact` for click, hover, fill, select, and key actions. An observation marks a
hover-only surface as `@e1 button "Products" [hover first: Shoes | Bags]`. The listed items are
Use `browser_interact` for click, hover, focus, blur, fill, select, and key actions. Focus and blur
explicitly enter or leave UI states triggered by focus changes. An observation marks a hover-only surface as `@e1 button "Products" [hover first: Shoes | Bags]`. The listed items are
labels, not usable refs: hover the trigger, observe again, then act on the revealed item's own ref.
Do not click the trigger itself unless the user wants the trigger's action.
@@ -167,12 +167,14 @@ const BROWSER_TOOL_SPECS: BrowserToolSpec[] = [
{
name: "browser_interact",
description:
"Interact with an element in the active Agent Window tab. Actions: click, hover, fill, select, " +
"press. click/hover/fill/select require target; fill also requires value; select requires " +
"Interact with an element in the active Agent Window tab. Actions: click, hover, focus, blur, fill, select, " +
"press. click/hover/focus/blur/fill/select require target; fill also requires value; select requires " +
"values; press requires key and may optionally focus target first.",
actions: {
click: "interact.click",
hover: "interact.hover",
focus: "interact.focus",
blur: "interact.blur",
fill: "interact.fill",
select: "interact.select",
press: "interact.press",
@@ -562,6 +562,10 @@ export function actionForLabel(label: string): string {
return "clicking";
case "hover":
return "hovering";
case "focus":
return "focusing";
case "blur":
return "blurring";
case "fill":
return "filling";
case "select":
@@ -13,7 +13,7 @@ import type { ToolDeps } from "./tools";
const MODIFIERS = ["alt", "ctrl", "meta", "shift"] as const;
/** Add hover and select without bypassing session ownership or observation. */
/** Add hover, focus, blur and select without bypassing session ownership or observation. */
export function registerPhaseOneInteractionTools(
deps: ToolDeps,
register: ToolRegistrar,
@@ -100,6 +100,88 @@ export function registerPhaseOneInteractionTools(
}),
);
for (const action of ["focus", "blur"] as const) {
register(
defineTool({
name: `interact.${action}`,
description:
action === "focus"
? "Focus an element and verify its DOM focus state."
: "Remove focus from an element and report whether it was focused.",
parameters: {
target: {
type: "string",
required: true,
description: "Snapshot ref (@e3 / e3) or CSS selector of the element.",
},
session: SESSION_PARAM,
tabId: TAB_ID_PARAM,
timeoutMs: TIMEOUT_MS_PARAM,
},
output: {
schema: {
type: "object",
additionalProperties: false,
properties: {
session: { type: "string", required: true },
tabId: { type: "integer", required: true },
focused: { type: "boolean", required: true },
wasFocused: {
type: "boolean",
description: "Whether the target was focused before blur.",
},
},
},
render: (_args, value) => [
{
type: "text",
text:
`[session ${value.session}] ${action} on tab ${value.tabId}: focused=${value.focused}` +
(value.wasFocused === undefined ? "" : `, wasFocused=${value.wasFocused}`),
},
],
},
async execute(args, exec) {
requireNonEmpty(args.target, "target");
requirePositive(args.timeoutMs, "timeoutMs");
const sessionId = registry.resolve(args.session, `browser_interact(action=${action})`);
const cmdArgs = [action, "--session", sessionId];
appendTabId(cmdArgs, args.tabId);
if (args.timeoutMs !== undefined) cmdArgs.push("--timeout", `${args.timeoutMs}ms`);
appendTarget(cmdArgs, args.target);
const reply = (await runtime.run(
exec,
cmdArgs,
action,
sessionId,
runnerTimeout(deps, args.timeoutMs),
)) as {
tab_id: number;
focused: boolean;
was_focused?: boolean;
};
return {
session: sessionId,
tabId: reply.tab_id,
focused: reply.focused,
...(action === "blur" ? { wasFocused: reply.was_focused } : {}),
};
},
presentCall: (args) => ({
card: "terminal",
title: runtime.commandLine([
action,
args.target,
"--session",
args.session ?? "(current)",
]),
description: action === "focus" ? "Focus an element" : "Remove focus from an element",
}),
presentResult: runtime.presentTerminalResult,
}),
);
}
register(
defineTool({
name: "interact.select",
@@ -102,6 +102,8 @@ const ACTION_ROUTES: Record<string, readonly [string, string]> = {
"inspect.network": ["browser_inspect", "network"],
"interact.click": ["browser_interact", "click"],
"interact.hover": ["browser_interact", "hover"],
"interact.focus": ["browser_interact", "focus"],
"interact.blur": ["browser_interact", "blur"],
"interact.fill": ["browser_interact", "fill"],
"interact.select": ["browser_interact", "select"],
"interact.press": ["browser_interact", "press"],
@@ -200,7 +202,7 @@ const EXPECTED_ACTIONS = {
browser_session: ["start", "stop", "list"],
browser_page: ["navigate", "back", "forward", "reload", "wait"],
browser_inspect: ["observe", "snapshot", "html", "screenshot", "console", "network"],
browser_interact: ["click", "hover", "fill", "select", "press"],
browser_interact: ["click", "hover", "focus", "blur", "fill", "select", "press"],
browser_tabs: ["list", "create", "select", "close", "borrow", "return"],
browser_assist: ["resize", "emulate", "request-help"],
} as const;
@@ -499,6 +501,60 @@ describe("interaction tools", () => {
]);
});
it.each([
"focus",
"blur",
] as const)("interact.%s maps focus state, target, tab and timeout", async (action) => {
const { tools, calls } = setup({
"session start": START_REPLY("s1"),
[action]: {
tab_id: 7,
focused: action === "focus",
...(action === "blur" ? { was_focused: true } : {}),
},
});
await startSession(tools);
const target = action === "focus" ? "@e3" : "#field";
const value = await tools
.get(`interact.${action}`)
?.execute({ target, tabId: 7, timeoutMs: 150_000 }, makeExec());
expect(value).toEqual({
session: "s1",
tabId: 7,
focused: action === "focus",
...(action === "blur" ? { wasFocused: true } : {}),
});
expect(calls[1].args).toEqual([
action,
"--session",
"s1",
"--tab-id",
"7",
"--timeout",
"150000ms",
target,
]);
expect(calls[1].options.timeoutMs).toBe(165_000);
});
it.each([
"focus",
"blur",
] as const)("interact.%s validates arguments and session ownership before running", async (action) => {
const { tools, calls } = setup({ "session start": START_REPLY("s1") });
await startSession(tools);
const tool = tools.get(`interact.${action}`)!;
await expect(tool.execute({}, makeExec())).rejects.toThrow(/invalid arguments/i);
await expect(tool.execute({ target: " " }, makeExec())).rejects.toThrow(/non-empty/i);
await expect(tool.execute({ target: "e1", timeoutMs: 0 }, makeExec())).rejects.toThrow(
/greater than zero/i,
);
await expect(tool.execute({ target: "e1", session: "foreign" }, makeExec())).rejects.toThrow(
/session/i,
);
expect(calls).toHaveLength(1);
});
it("interact.fill passes value and --no-clear", async () => {
const { tools, calls } = setup(responses);
await startSession(tools);
+5 -2
View File
@@ -55,10 +55,13 @@ Use this default loop:
```text
bsk navigate <url> --session <id>
bsk observe --session <id>
bsk click|hover|fill|select|press ... --session <id>
bsk click|hover|focus|blur|fill|select|press ... --session <id>
bsk observe --session <id> # after navigation or a meaningful DOM change
```
`bsk focus <ref>` explicitly focuses a target; `bsk blur <ref>` removes focus and reports whether
it was focused. Use these for UI states triggered by focus changes.
Prefer fresh `@eN` refs over CSS selectors. Navigation invalidates refs; large DOM changes may also
make them stale. Observe again before the next interaction.
@@ -114,7 +117,7 @@ This list of names is complete. Never invent a command outside it; read
session start|stop|list browsers status doctor update logs
navigate navigate-back navigate-forward reload wait-for-navigation wait-ms
observe snapshot get-html screenshot console network
click hover fill select press evaluate
click hover focus blur fill select press evaluate
tab list|create|close|select|borrow|return window resize emulate
upload download request-help record start|stop
```