| <!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> |
| body, html { |
| margin: 0; |
| } |
| pre, #log { |
| position: absolute; |
| top: 0; |
| left: 200px; |
| } |
| iframe { |
| width: 150px; |
| height: 100px; |
| border: 0; |
| } |
| </style> |
| |
| <iframe srcdoc="<!DOCTYPE html><div>Lorem ipsum. Lorem ipsum. Lorem ipsum. Lorem ipsum. Lorem ipsum. Lorem ipsum. Lorem ipsum. Lorem ipsum. Lorem ipsum. Lorem ipsum.</div>"></iframe> |
| |
| <script> |
| var delay = 100; |
| var entries = []; |
| var target; |
| |
| runTestCycle(function() { |
| target = document.querySelector("iframe"); |
| assert_true(!!target, "target exists"); |
| var observer = new IntersectionObserver(function(changes) { |
| entries = entries.concat(changes) |
| }, {trackVisibility: true, delay: delay}); |
| observer.observe(target); |
| entries = entries.concat(observer.takeRecords()); |
| assert_equals(entries.length, 0, "No initial notifications."); |
| runTestCycle(step0, "First rAF.", delay); |
| }, "IntersectionObserverV2 observing an iframe element.", delay); |
| |
| function step0() { |
| checkLastEntry(entries, 0, [0, 150, 0, 100, 0, 150, 0, 100, 0, 800, 0, 600, true, true]); |
| } |
| </script> |
