pcbjam/tests/e2e/scrollbar.spec.ts

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// Draggable scrollbar e2e — the DOM scrollbar widget reports drags back to
// C++ (wxEVT_SCROLL for the standalone wxScrollBar; wxEVT_SCROLLWIN for the
// wxScrolledWindow gutter, which scrolls the content). The thumb registers as
// 'slider' + 'slidertrack' so Playwright can drag it.
import { test, expect, tryLoadApp } from './utils/fixtures';
import { findRenderedByType } from './utils/element-tracker';
test.describe('DOM-port scrollbars', () => {
test.beforeEach(async ({ page }) => {
await page.goto('/standalone/scrollbar/scrollbar_test.html');
expect(await tryLoadApp(page, 30000), 'scrollbar app should load').toBe(true);
await page.waitForTimeout(500);
});
test('scrollbars render draggable thumbs', async ({ page, testLogger }) => {
await expect.poll(
async () => (await findRenderedByType(page, 'slider')).length,
{ timeout: 8000, message: 'scrollbar thumbs should register' },
).toBeGreaterThanOrEqual(2);
await page.screenshot({ path: 'test-results/scrollbar-01-loaded.png', fullPage: true });
expect(testLogger.errors.filter((e) => !e.includes('favicon'))).toHaveLength(0);
});
test('dragging a thumb scrolls (standalone control fires wxEVT_SCROLL)', async ({
page,
testLogger,
}) => {
await expect.poll(
async () => (await findRenderedByType(page, 'slider')).length,
{ timeout: 8000 },
).toBeGreaterThanOrEqual(2);
const sliders = await findRenderedByType(page, 'slider');
const tracks = await findRenderedByType(page, 'slidertrack');
// Drag every thumb toward the far end of its track. The standalone
// scrollbars log "[SCROLLBAR_EVENT] scrollbar pos N"; the scrolled-window
// gutters scroll the content (captured in the screenshot).
for (let i = 0; i < sliders.length; i++) {
const s = sliders[i];
const t = tracks.find((tr) => tr.parentId === s.parentId) ?? tracks[i];
if (!t) continue;
const horizontal = t.width > t.height;
const tx = horizontal ? t.screenX + t.width * 0.85 : t.centerX;
const ty = horizontal ? t.centerY : t.screenY + t.height * 0.85;
await page.mouse.move(s.centerX, s.centerY);
await page.mouse.down();
await page.mouse.move(tx, ty, { steps: 6 });
await page.mouse.up();
await page.waitForTimeout(150);
}
await page.screenshot({ path: 'test-results/scrollbar-02-dragged.png', fullPage: true });
// At least one standalone scrollbar must have reported a non-zero position.
await expect.poll(
() => testLogger.consoleLogs.some((l) => /\[SCROLLBAR_EVENT\] scrollbar pos [1-9]/.test(l)),
{ timeout: 8000, message: 'a standalone scrollbar drag should report a non-zero position' },
).toBe(true);
});
});