| <!DOCTYPE html> |
| <meta name="viewport" content="width=device-width,initial-scale=1"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="./resources/intersection-observer-test-utils.js"></script> |
| |
| <style> |
| pre, #log { |
| position: absolute; |
| top: 0; |
| left: 200px; |
| } |
| #target { |
| background-color: green; |
| width: 100px; |
| height: 100px; |
| } |
| </style> |
| |
| <div id="target"></div> |
| |
| <script> |
| var vw = document.documentElement.clientWidth; |
| var vh = document.documentElement.clientHeight; |
| |
| var entries = []; |
| |
| promise_test(async function(t) { |
| var target = document.getElementById("target"); |
| var root = document.getElementById("root"); |
| var observer = new IntersectionObserver(function(changes) { |
| entries = entries.concat(changes) |
| }); |
| observer.observe(target); |
| entries = entries.concat(observer.takeRecords()); |
| assert_equals(entries.length, 0, "No initial notifications."); |
| |
| await waitForNotification(); |
| |
| checkLastEntry( |
| entries, |
| 0, |
| [8, 108, 8, 108, 8, 108, 8, 108, 0, vw, 0, vh, true], |
| ); |
| target.style.display = "none"; |
| |
| await waitForNotification(); |
| |
| checkLastEntry( |
| entries, |
| 1, |
| [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, false], |
| ); |
| |
| target.style.display = ""; |
| |
| await waitForNotification(); |
| |
| checkLastEntry( |
| entries, |
| 2, |
| [8, 108, 8, 108, 8, 108, 8, 108, 0, vw, 0, vh, true], |
| ); |
| }); |
| </script> |
