test(desktop): expand behavioral accessibility coverage

apps/desktop/e2e/accessibility-coverage.spec.ts

@@ -17,7 +17,8 @@
  * under the License.
  */
 
-import type { CDPSession, Page } from '@playwright/test';
+import { FAKE_HOLD_OPEN_PROMPT } from '@maka/runtime/test-only/fake-backend';
+import type { CDPSession, Locator, Page } from '@playwright/test';
 import { expect, test, COMPOSER_INPUT } from './fixtures';
 import { auditAxTree } from '../../../scripts/ax-tree-audit.mjs';
 import { groupedNav } from '../src/renderer/settings/settings-nav';
@@ -40,6 +41,17 @@ async function openSettings(page: Page): Promise<void> {
   await expect(page.getByRole('main', { name: '设置内容' })).toBeVisible();
 }
 
+async function tabTo(page: Page, target: Locator, label: string, limit = 30): Promise<void> {
+  for (let index = 0; index < limit; index += 1) {
+    if (await target.evaluate((element) => element === document.activeElement)) return;
+    await page.keyboard.press('Tab');
+  }
+  expect(
+    await target.evaluate((element) => element === document.activeElement),
+    `${label} is not reachable within ${limit} Tab presses`,
+  ).toBe(true);
+}
+
 test('every settings page exposes named actionable controls', async ({ window: page }) => {
   await openSettings(page);
   const cdp = await page.context().newCDPSession(page);
@@ -118,6 +130,103 @@ test('module pages and global overlays expose named actionable controls', async
   await page.keyboard.press('Escape');
 });
 
+test('data-backed conversation supports keyboard access to tools, models, tasks, and Graph', async ({
+  accessibilityNarrativeWindow: page,
+}) => {
+  const cdp = await page.context().newCDPSession(page);
+  await expect(page.getByRole('region', { name: /对话：/ })).toBeVisible();
+  await expect(page.getByRole('region', { name: '任务待办' })).toBeVisible();
+  await expect(page.getByText('补齐桌面端无障碍覆盖', { exact: true })).toBeVisible();
+  const recentTasks = page.getByRole('button', { name: /最近结束/ });
+  await recentTasks.focus();
+  await page.keyboard.press('Enter');
+  await expect(page.getByText('确认工具结果可以展开阅读', { exact: true })).toBeVisible();
+  await assertAxHealth(cdp, 'conversation/data-backed');
+
+  await page.evaluate(() => {
+    document.body.tabIndex = -1;
+    document.body.focus();
+  });
+  const skipLink = page.getByRole('link', { name: '跳到主要内容' });
+  await tabTo(page, skipLink, 'skip link', 10);
+  await page.keyboard.press('Enter');
+  await expect(page.getByRole('main')).toBeFocused();
+  await page.evaluate(() => document.body.removeAttribute('tabindex'));
+
+  const toolCall = page.getByRole('button', { name: /^检查测试状态/ });
+  await tabTo(page, toolCall, 'tool result');
+  await page.keyboard.press('Enter');
+  await expect(toolCall).toHaveAttribute('aria-expanded', 'true');
+  await expect(page.locator('[data-slot="tool-output"]')).toContainText('core 41 passing');
+  await assertAxHealth(cdp, 'conversation/tool-result-expanded');
+  await page.keyboard.press('Enter');
+  await expect(toolCall).toHaveAttribute('aria-expanded', 'false');
+
+  const modelSwitcher = page.getByRole('button', { name: '切换当前任务模型' });
+  await tabTo(page, modelSwitcher, 'model picker');
+  await page.keyboard.press('Enter');
+  await expect(page.getByRole('menuitem', { name: /glm-5\.1/ })).toBeVisible();
+  await assertAxHealth(cdp, 'conversation/model-picker');
+  const availableModel = page.getByRole('menuitem', { name: 'glm-4.5', exact: true });
+  await availableModel.focus();
+  await page.keyboard.press('Enter');
+  await expect(modelSwitcher).toContainText('glm-4.5');
+
+  const composer = page.locator(COMPOSER_INPUT);
+  await composer.fill('/graph on');
+  await composer.press('Enter');
+  await expect(page.getByText('Graph Mode 已开启', { exact: true })).toBeVisible();
+  await assertAxHealth(cdp, 'overlay/graph-mode-toast');
+
+  const graphPanel = page.getByRole('region', { name: 'Agent Graph' });
+  await expect(graphPanel).toBeVisible();
+  await expect(graphPanel).toContainText('等待主 Agent 创建 operator…');
+  const collapseGraph = graphPanel.getByRole('button', { name: '收起 Agent Graph' });
+  await collapseGraph.focus();
+  await page.keyboard.press('Enter');
+  await expect(
+    graphPanel.getByRole('button', { name: '展开 Agent Graph' }),
+  ).toHaveAttribute('aria-expanded', 'false');
+  await assertAxHealth(cdp, 'conversation/agent-graph-empty');
+});
+
+test('toast and error states expose healthy live regions', async ({ window: page }) => {
+  const cdp = await page.context().newCDPSession(page);
+  const composer = page.locator(COMPOSER_INPUT);
+  await composer.fill('/graph history');
+  await composer.press('Enter');
+  await expect(page.getByText('Graph 历史', { exact: true })).toBeVisible();
+  await assertAxHealth(cdp, 'overlay/graph-history-toast');
+
+  await page.evaluate(async () => {
+    await window.maka.connections.setDefaultModel(null);
+    await window.maka.settings.updateClient({ workHub: { enabled: true } });
+  });
+  const failure = page.getByRole('alert');
+  await expect(failure).toContainText('WorkHub 暂时无法启动');
+  await expect(failure).toContainText('请检查当前 Runtime Host 的默认模型配置');
+  await assertAxHealth(cdp, 'workhub/startup-error');
+});
+
+test('a streaming answer exposes a healthy live conversation state', async ({ window: page }) => {
+  const cdp = await page.context().newCDPSession(page);
+  const composer = page.locator(COMPOSER_INPUT);
+  await composer.fill(FAKE_HOLD_OPEN_PROMPT);
+  await composer.press('Enter');
+
+  await expect(page.locator('.maka-bubble-streaming')).toContainText('Fake backend waiting');
+  await expect(page.getByRole('button', { name: '停止' })).toBeEnabled();
+  await assertAxHealth(cdp, 'conversation/streaming');
+
+  const stop = page.getByRole('button', { name: '停止' });
+  await stop.focus();
+  await page.keyboard.press('Enter');
+  await expect(page.getByRole('button', { name: '重新生成' })).toHaveCount(1, {
+    timeout: 20_000,
+  });
+  await assertAxHealth(cdp, 'conversation/stopped');
+});
+
 test('composer and workbar entry points expose named actionable controls', async ({
   window: page,
 }) => {
@@ -159,6 +268,13 @@ test('composer and workbar entry points expose named actionable controls', async
     const activeTab = page.getByRole('tab', { name: new RegExp(panel) });
     await expect(activeTab).toBeVisible();
     await expect(activeTab).toHaveAttribute('aria-selected', 'true');
+    if (panel === '终端') {
+      await expect(page.getByRole('region', { name: '任务终端' })).toBeVisible();
+    } else if (panel === '浏览器') {
+      await expect(page.getByRole('region', { name: '嵌入式浏览器' })).toBeVisible();
+    } else if (panel === '待办') {
+      await expect(page.getByRole('region', { name: '任务待办' })).toBeVisible();
+    }
     await assertAxHealth(cdp, `workbar/${panel}`);
     if (panel !== workbarPanels.at(-1)) {
       await page.getByRole('button', { name: '打开工作栏标签' }).first().click();

apps/desktop/e2e/fixtures.ts

@@ -486,6 +486,7 @@ export const test = base.extend<{
   promptRailMotionWindow: Page;
   requestHeaderRowWindow: Page;
   newTaskTargetWindow: Page;
+  accessibilityNarrativeWindow: Page;
 }>({
   // Seeded: a pre-staged connection clears onboarding so the composer is ready.
   window: async ({}, use) => {
@@ -626,6 +627,18 @@ export const test = base.extend<{
       showWindow: true,
     }, use);
   },
+  // A data-backed conversation with settled tool evidence and a populated
+  // task ledger. Shown because the accessibility journey follows real native
+  // focus order through the transcript into the composer controls.
+  accessibilityNarrativeWindow: async ({}, use) => {
+    await withE2eWindow({
+      seed: false,
+      readinessSelector: '[data-turn-id]',
+      e2eFixtureScenario: 'turn-narrative',
+      locale: 'zh',
+      showWindow: true,
+    }, use);
+  },
 });
 
 export { expect };

apps/desktop/e2e/workhub-layout.spec.ts

@@ -82,7 +82,7 @@ test('WorkHub explains Coordination startup failure and recovers after a default
     });
   });
 
-  await expect(page.getByRole('main', { name: 'WorkHub' })).toBeVisible();
+  await expect(page.getByRole('region', { name: 'WorkHub' })).toBeVisible();
   await expect(page.locator('.workhub-empty')).toContainText('从这里继续所有工作');
   await expect(page.locator('.workhub-surface .maka-composer-editor')).toBeVisible();
 });

apps/desktop/e2e/workhub-reconstruction.spec.ts

@@ -37,7 +37,7 @@ test('WorkHub rebuilds delegated execution feedback after navigating away and ba
   await page.evaluate(async () => {
     await window.maka.settings.updateClient({ workHub: { enabled: true } });
   });
-  await expect(page.getByRole('main', { name: 'WorkHub' })).toBeVisible();
+  await expect(page.getByRole('region', { name: 'WorkHub' })).toBeVisible();
   // The conversation is the Coordination Session transcript. An ordinary
   // Session is a routing target and a status row, never a turn in WorkHub.
   await expect(page.getByText('1 项工作', { exact: true })).toBeVisible();
@@ -54,11 +54,11 @@ test('WorkHub rebuilds delegated execution feedback after navigating away and ba
   await page.locator('.workhub-turn', { hasText: routedPrompt })
     .locator('.workhub-submitted > button')
     .click();
-  await expect(page.getByRole('main', { name: 'WorkHub' })).toBeHidden();
+  await expect(page.getByRole('region', { name: 'WorkHub' })).toBeHidden();
 
   await ensureSidebarExpanded(page);
   await page.getByRole('button', { name: 'WorkHub', exact: true }).click();
-  await expect(page.getByRole('main', { name: 'WorkHub' })).toBeVisible();
+  await expect(page.getByRole('region', { name: 'WorkHub' })).toBeVisible();
   await expect(
     page.locator('.workhub-projected-turn .workhub-user-bubble > p', {
       hasText: routedPrompt,
@@ -88,7 +88,7 @@ test('WorkHub defers destructive correction until linked delegation exists', asy
   await page.evaluate(async () => {
     await window.maka.settings.updateClient({ workHub: { enabled: true } });
   });
-  await expect(page.getByRole('main', { name: 'WorkHub' })).toBeVisible();
+  await expect(page.getByRole('region', { name: 'WorkHub' })).toBeVisible();
   await page.evaluate(async () => {
     await window.maka.sessions.create({ name: '登录稳定性' });
   });

apps/desktop/src/main/e2e-fixture.ts

@@ -28,6 +28,7 @@ import {
   resolveStorageRoot,
   tryAcquireInteractiveRootOwner,
 } from '@maka/storage/root-authority';
+import { openInteractiveTaskLedgerStoreForWrite } from '@maka/storage/task-ledger-authority';
 import { openInteractiveUsageStoresForWrite } from '@maka/storage/usage-stores';
 import {
   E2E_FIXTURE_NOW,
@@ -228,6 +229,47 @@ export async function seedE2eFixture(input: {
   await writeConnections(input.workspaceRoot, now, scenario);
   await writeSession(input.workspaceRoot, turnSession(now), turnMessages(now));
 
+  if (scenario === 'turn-narrative' || scenario === 'turn-narrative-browser') {
+    const owner = await tryAcquireInteractiveRootOwner(storageRoot);
+    if (!owner) throw new Error('Unable to acquire the E2E fixture task-ledger root');
+    try {
+      const tasks = await openInteractiveTaskLedgerStoreForWrite(owner.lease);
+      try {
+        const created = await tasks.create(
+          TURN_SESSION_ID,
+          [
+            { subject: '补齐桌面端无障碍覆盖' },
+            { subject: '核对模型选择器的键盘路径' },
+            { subject: '确认工具结果可以展开阅读' },
+          ],
+          { source: 'import', actor: 'system' },
+        );
+        await tasks.update(
+          TURN_SESSION_ID,
+          created.created[0]!.id,
+          { status: 'in_progress' },
+          { source: 'import', actor: 'system' },
+        );
+        await tasks.update(
+          TURN_SESSION_ID,
+          created.created[2]!.id,
+          { status: 'in_progress' },
+          { source: 'import', actor: 'system' },
+        );
+        await tasks.update(
+          TURN_SESSION_ID,
+          created.created[2]!.id,
+          { status: 'completed', completionEvidence: '工具输出已成功显示。' },
+          { source: 'import', actor: 'system' },
+        );
+      } finally {
+        tasks.close();
+      }
+    } finally {
+      await owner.close();
+    }
+  }
+
   if (scenario === 'chat-prompt-rail') {
     await writeSession(input.workspaceRoot, promptRailSession(now), promptRailMessages(now));
   }

apps/desktop/src/renderer/workhub-surface.tsx

@@ -374,7 +374,7 @@ export function WorkHubSurface(props: {
         />
       )}
     >
-      <main className="maka-main agents-chat-panel agents-chat-view-root workhub-timeline" aria-label="WorkHub">
+      <section className="maka-main agents-chat-panel agents-chat-view-root workhub-timeline" aria-label="WorkHub">
         <header className="workhub-header">
           <div>
             <h1>WorkHub</h1>
@@ -448,7 +448,7 @@ export function WorkHubSurface(props: {
             )}
           </ChatMessageList>
         </div>
-      </main>
+      </section>
     </ChatSurfaceLayout>
   );
 }
@@ -484,7 +484,7 @@ export function WorkHubCoordinationStatus(props: {
         />
       )}
     >
-      <main
+      <section
         className="maka-main agents-chat-panel agents-chat-view-root workhub-timeline"
         aria-label="WorkHub"
       >
@@ -518,7 +518,7 @@ export function WorkHubCoordinationStatus(props: {
             )}
           </ChatMessageList>
         </div>
-      </main>
+      </section>
     </ChatSurfaceLayout>
   );
 }