| Xiaoming Shi | 73dfa20 | 2020-03-12 11:31:35 -0700 | [diff] [blame^] | 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: 120px; |
| 10 | left: 0; |
| 11 | } |
| 12 | #target { |
| 13 | display: inline; |
| 14 | } |
| 15 | </style> |
| 16 | |
| 17 | <div id="target"> |
| 18 | <div> |
| 19 | <img width=100 height=100 /> |
| 20 | </div> |
| 21 | </div> |
| 22 | |
| 23 | <script> |
| 24 | var vw = document.documentElement.clientWidth; |
| 25 | var vh = document.documentElement.clientHeight; |
| 26 | var entries = []; |
| 27 | var target; |
| 28 | |
| 29 | runTestCycle(function() { |
| 30 | target = document.getElementById("target"); |
| 31 | assert_true(!!target, "target exists"); |
| 32 | var observer = new IntersectionObserver(function(changes) { |
| 33 | entries = entries.concat(changes) |
| 34 | }); |
| 35 | observer.observe(target); |
| 36 | entries = entries.concat(observer.takeRecords()); |
| 37 | assert_equals(entries.length, 0, "No initial notifications."); |
| 38 | runTestCycle(step0, "First rAF"); |
| 39 | }, "Inline target containing a block child"); |
| 40 | |
| 41 | function step0() { |
| 42 | assert_equals(entries.length, 1); |
| 43 | checkRect(entries[0].boundingClientRect, clientBounds(target), |
| 44 | "entry.boundingClientRect == target.getBoundingClientRect()"); |
| 45 | } |
| 46 | </script> |
