LEFT | RIGHT |
(no file at all) | |
| 1 <!DOCTYPE html> |
| 2 <script src="/resources/testharness.js"></script> |
| 3 <script src="/resources/testharnessreport.js"></script> |
| 4 <script src="./resources/intersection-observer-test-utils.js"></script> |
| 5 |
| 6 <style> |
| 7 pre, #log { |
| 8 position: absolute; |
| 9 top: 0; |
| 10 left: 200px; |
| 11 } |
| 12 #target { |
| 13 background-color: green; |
| 14 width: 100px; |
| 15 height: 100px; |
| 16 } |
| 17 </style> |
| 18 |
| 19 <div id="target"></div> |
| 20 |
| 21 <script> |
| 22 var vw = document.documentElement.clientWidth; |
| 23 var vh = document.documentElement.clientHeight; |
| 24 |
| 25 var entries = []; |
| 26 |
| 27 runTestCycle(function() { |
| 28 var target = document.getElementById("target"); |
| 29 var root = document.getElementById("root"); |
| 30 var observer = new IntersectionObserver(function(changes) { |
| 31 entries = entries.concat(changes) |
| 32 }); |
| 33 observer.observe(target); |
| 34 entries = entries.concat(observer.takeRecords()); |
| 35 assert_equals(entries.length, 0, "No initial notifications."); |
| 36 runTestCycle(step0, "Intersecting notification after first rAF."); |
| 37 }, "IntersectionObserver should send a not-intersecting notification for a targe
t that gets display:none."); |
| 38 |
| 39 function step0() { |
| 40 runTestCycle(step1, "Not-intersecting notification after setting display:none
on target."); |
| 41 checkLastEntry(entries, 0, [8, 108, 8, 108, 8, 108, 8, 108, 0, vw, 0, vh, true
]); |
| 42 target.style.display = "none"; |
| 43 } |
| 44 |
| 45 function step1() { |
| 46 runTestCycle(step2, "Intersecting notification after removing display:none on
target."); |
| 47 checkLastEntry(entries, 1, [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, false]); |
| 48 target.style.display = ""; |
| 49 } |
| 50 |
| 51 function step2() { |
| 52 checkLastEntry(entries, 2, [8, 108, 8, 108, 8, 108, 8, 108, 0, vw, 0, vh, true
]); |
| 53 } |
| 54 </script> |
LEFT | RIGHT |