feat: import Chinese-localized Buzz source snapshot

Signed-off-by: cls_宁波本机 <908705107@qq.com>

desktop/tests/e2e/overscroll-boundary.spec.ts

@@ -0,0 +1,160 @@
+import { expect, test } from "@playwright/test";
+
+import { installMockBridge } from "../helpers/bridge";
+
+async function dispatchWheelPrevented(
+  page: import("@playwright/test").Page,
+  selector: string,
+  deltas: { deltaX?: number; deltaY?: number },
+) {
+  return page.evaluate(
+    ({ selector, deltaX, deltaY }) => {
+      const element = document.querySelector(selector);
+      if (!element) {
+        throw new Error(`Missing element for selector: ${selector}`);
+      }
+
+      const event = new WheelEvent("wheel", {
+        bubbles: true,
+        cancelable: true,
+        deltaX,
+        deltaY,
+      });
+      element.dispatchEvent(event);
+      return event.defaultPrevented;
+    },
+    { selector, deltaX: deltas.deltaX ?? 0, deltaY: deltas.deltaY ?? 0 },
+  );
+}
+
+test.beforeEach(async ({ page }) => {
+  await installMockBridge(page);
+});
+
+test("locks viewport rubber-band outside conversation scrollers", async ({
+  page,
+}) => {
+  await page.goto("/");
+  await page.getByTestId("channel-general").click();
+  await expect(page.getByTestId("message-timeline")).toBeVisible();
+
+  await expect(
+    dispatchWheelPrevented(page, '[data-testid="app-top-chrome"]', {
+      deltaY: -120,
+    }),
+  ).resolves.toBe(true);
+  await expect(
+    dispatchWheelPrevented(page, '[data-testid="sidebar-pinned-header"]', {
+      deltaY: -120,
+    }),
+  ).resolves.toBe(true);
+  await expect(
+    dispatchWheelPrevented(page, '[data-testid="app-sidebar-scroll-anchor"]', {
+      deltaY: -120,
+    }),
+  ).resolves.toBe(true);
+  await expect(
+    dispatchWheelPrevented(page, '[data-testid="chat-title"]', {
+      deltaY: -120,
+    }),
+  ).resolves.toBe(true);
+
+  await expect(
+    dispatchWheelPrevented(page, '[data-testid="message-timeline"]', {
+      deltaY: -120,
+    }),
+  ).resolves.toBe(false);
+
+  // Buzz Term consumes wheel gestures as custom scrollback rather than through
+  // a native scroll container. The viewport lock must leave that vertical
+  // gesture alone so the substrate's own handler can receive it.
+  await page.evaluate(() => {
+    const terminal = document.createElement("section");
+    terminal.dataset.terminalOwner = "terminal";
+    terminal.dataset.testid = "terminal-wheel-target";
+    document.body.append(terminal);
+  });
+  await expect(
+    dispatchWheelPrevented(page, '[data-testid="terminal-wheel-target"]', {
+      deltaY: -120,
+    }),
+  ).resolves.toBe(false);
+});
+
+test("locks horizontal viewport pan everywhere", async ({ page }) => {
+  await page.goto("/");
+  await page.getByTestId("channel-general").click();
+  await expect(page.getByTestId("message-timeline")).toBeVisible();
+
+  for (const deltaX of [-120, 120]) {
+    await expect(
+      dispatchWheelPrevented(page, '[data-testid="app-top-chrome"]', {
+        deltaX,
+      }),
+    ).resolves.toBe(true);
+    await expect(
+      dispatchWheelPrevented(page, '[data-testid="sidebar-pinned-header"]', {
+        deltaX,
+      }),
+    ).resolves.toBe(true);
+    await expect(
+      dispatchWheelPrevented(page, '[data-testid="chat-title"]', { deltaX }),
+    ).resolves.toBe(true);
+
+    // Unlike vertical, horizontal pans over the conversation pane are locked
+    // too — there is no horizontal elastic affordance.
+    await expect(
+      dispatchWheelPrevented(page, '[data-testid="message-timeline"]', {
+        deltaX,
+      }),
+    ).resolves.toBe(true);
+  }
+
+  await page.evaluate(() => {
+    const terminal = document.createElement("section");
+    terminal.dataset.terminalOwner = "terminal";
+    terminal.dataset.testid = "terminal-wheel-target";
+    document.body.append(terminal);
+  });
+  for (const [deltaX, deltaY, prevented] of [
+    [120, 0, true],
+    [0, 120, false],
+    [120, 120, false],
+    [120, 20, true],
+  ] as const) {
+    await expect(
+      dispatchWheelPrevented(page, '[data-testid="terminal-wheel-target"]', {
+        deltaX,
+        deltaY,
+      }),
+    ).resolves.toBe(prevented);
+  }
+
+  // A concealed substrate is not an active custom wheel consumer. Keep dead
+  // space locked even if a future layout places Buzz content inside it.
+  await page.evaluate(() => {
+    const terminal = document.querySelector<HTMLElement>(
+      '[data-testid="terminal-wheel-target"]',
+    );
+    const buzzContent = document.createElement("div");
+    buzzContent.dataset.testid = "concealed-terminal-dead-space";
+    terminal?.append(buzzContent);
+    if (terminal) terminal.dataset.terminalOwner = "buzz";
+  });
+  await expect(
+    dispatchWheelPrevented(
+      page,
+      '[data-testid="concealed-terminal-dead-space"]',
+      { deltaY: 120 },
+    ),
+  ).resolves.toBe(true);
+
+  // A predominantly vertical gesture with slight horizontal drift still
+  // reaches the conversation scroller.
+  await expect(
+    dispatchWheelPrevented(page, '[data-testid="message-timeline"]', {
+      deltaX: -10,
+      deltaY: -120,
+    }),
+  ).resolves.toBe(false);
+});