| <!DOCTYPE html><!-- webkit-test-runner [ AsyncOverflowScrollingEnabled=true ] --> |
| <html> |
| <body> |
| <style> |
| .container > div { width: 10px; height: 10px; overflow: scroll; } |
| </style> |
| <p>This tests scheduling a scroll event on an element then removing the element.<br>WebKit should not collect its JS wrappers.</p> |
| <pre id="result"></pre> |
| <div class="container"></div> |
| <script src="../../resources/gc.js"></script> |
| <script> |
| |
| if (window.testRunner) { |
| testRunner.waitUntilDone(); |
| testRunner.dumpAsText(); |
| } |
| |
| const logs = []; |
| let currentNumber = 0; |
| function scheduleScrollEvents(count) |
| { |
| let container = document.querySelector('.container'); |
| for (let i = 0; i < count; i++) { |
| const div = document.createElement('div'); |
| div.innerHTML = '<p>hello, world<br>this is a test</p>'; |
| container.appendChild(div); |
| div.liveNumber = currentNumber; |
| div.addEventListener('scroll', log); |
| currentNumber++; |
| } |
| |
| for (const div of container.children) |
| div.scrollTo(10, 10); |
| |
| container.textContent = ''; |
| } |
| |
| function log() |
| { |
| logs.push(this.liveNumber); |
| } |
| |
| function checkLogs() |
| { |
| let failed = false; |
| for (let i = 0; i < logs.length; ++i) { |
| if (logs[i] != i) { |
| result.textContent += `FAIL at ${i}: ${logs[i]}\n`; |
| failed = true; |
| } |
| } |
| if (!failed) |
| result.textContent = 'PASS'; |
| } |
| |
| for (let i = 0; i < 5; ++i) { |
| scheduleScrollEvents(20); |
| gc(); |
| } |
| |
| requestAnimationFrame(() => { |
| checkLogs(); |
| if (window.testRunner) |
| testRunner.notifyDone(); |
| }); |
| |
| </script> |
| </body> |
| </html> |
