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| 1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
| 2 <script src="../resources/js-test.js"></script> | 2 <script src="../resources/testharness.js"></script> |
| 3 <script src="../resources/intersection-observer-helper-functions.js"></script> | 3 <script src="../resources/testharnessreport.js"></script> |
| 4 |
| 4 <div id="root" style="display: inline-block; overflow-y: scroll; height: 200px;
border: 3px solid black"> | 5 <div id="root" style="display: inline-block; overflow-y: scroll; height: 200px;
border: 3px solid black"> |
| 5 <div style="width:100px; height: 300px;"></div> | 6 <div style="width:100px; height: 300px;"></div> |
| 6 <div id="target" style="background-color: green; width:100px; height:100px"></
div> | 7 <div id="target" style="background-color: green; width:100px; height:100px"></
div> |
| 7 <div id="afterTarget" style="width:100px; height: 300px;"></div> | 8 <div id="afterTarget" style="width:100px; height: 300px;"></div> |
| 8 </div> | 9 </div> |
| 9 | 10 |
| 10 <script> | 11 <script> |
| 11 description("Test that notifications are sent correctly when root and/or target
are removed from the DOM tree."); | 12 function waitForNotification(f) { |
| 12 var target = document.getElementById("target"); | 13 requestAnimationFrame(() => { |
| 13 var afterTarget = document.getElementById("afterTarget"); | 14 setTimeout(() => { |
| 14 var root = document.getElementById("root"); | 15 setTimeout(f); |
| 15 var entries = []; | 16 }); |
| 16 var observer = new IntersectionObserver( | 17 }); |
| 17 changes => { entries = entries.concat(changes) }, | 18 } |
| 18 { root: document.getElementById("root") } | |
| 19 ); | |
| 20 | 19 |
| 21 onload = function() { | 20 onload = function() { |
| 21 var t = async_test("Test that notifications are sent correctly when root and/o
r target are removed from the DOM tree."); |
| 22 |
| 23 test(function() { assert_equals(window.innerWidth, 800) }, "Window must be 800
pixels wide."); |
| 24 test(function() { assert_equals(window.innerHeight, 600) }, "Window must be 60
0 pixels high."); |
| 25 |
| 26 var target = document.getElementById("target"); |
| 27 var afterTarget = document.getElementById("afterTarget"); |
| 28 var root = document.getElementById("root"); |
| 29 var entries = []; |
| 30 var observer = new IntersectionObserver(function(changes) { |
| 31 entries = entries.concat(changes) |
| 32 }, {root: root}); |
| 22 observer.observe(target); | 33 observer.observe(target); |
| 23 entries = entries.concat(observer.takeRecords()); | 34 entries = entries.concat(observer.takeRecords()); |
| 24 shouldBeEqualToNumber("entries.length", 0); | 35 test(function() { assert_equals(entries.length, 0) }, "No initial notification
s."); |
| 25 root.scrollTop = 150; | 36 waitForNotification(step0); |
| 26 waitForNotification(step1); | |
| 27 } | |
| 28 | 37 |
| 29 function step1() { | 38 function checkEntry(i, expected) { |
| 30 shouldBeEqualToNumber("entries.length", 1); | 39 test(function() { assert_equals(entries.length, i+1) }, String(i+1) + " noti
fication(s)."); |
| 31 if (entries.length > 0) { | 40 if (expected && entries.length > i) { |
| 32 shouldBeEqualToNumber("entries[0].boundingClientRect.left", 11); | 41 test(function() { assert_equals(entries[i].boundingClientRect.left, expect
ed[0]) }, |
| 33 shouldBeEqualToNumber("entries[0].boundingClientRect.right", 111); | 42 "entries[" + i + "].boundingClientRect.left == " + expected[0]); |
| 34 shouldBeEqualToNumber("entries[0].boundingClientRect.top", 161); | 43 test(function() { assert_equals(entries[i].boundingClientRect.right, expec
ted[1]) }, |
| 35 shouldBeEqualToNumber("entries[0].boundingClientRect.bottom", 261); | 44 "entries[" + i + "].boundingClientRect.right == " + expected[1]); |
| 36 shouldBeEqualToNumber("entries[0].intersectionRect.left", 11); | 45 test(function() { assert_equals(entries[i].boundingClientRect.top, expecte
d[2]) }, |
| 37 shouldBeEqualToNumber("entries[0].intersectionRect.right", 111); | 46 "entries[" + i + "].boundingClientRect.top == " + expected[2]); |
| 38 shouldBeEqualToNumber("entries[0].intersectionRect.top", 161); | 47 test(function() { assert_equals(entries[i].boundingClientRect.bottom, expe
cted[3]) }, |
| 39 shouldBeEqualToNumber("entries[0].intersectionRect.bottom", 211); | 48 "entries[" + i + "].boundingClientRect.bottom == " + expected[3]); |
| 40 shouldBeEqualToNumber("entries[0].rootBounds.left", 11); | 49 test(function() { assert_equals(entries[i].intersectionRect.left, expected
[4]) }, |
| 41 shouldBeEqualToNumber("entries[0].rootBounds.right", 111); | 50 "entries[" + i + "].intersectionRect.left == " + expected[4]); |
| 42 shouldBeEqualToNumber("entries[0].rootBounds.top", 11); | 51 test(function() { assert_equals(entries[i].intersectionRect.right, expecte
d[5]) }, |
| 43 shouldBeEqualToNumber("entries[0].rootBounds.bottom", 211); | 52 "entries[" + i + "].intersectionRect.right == " + expected[5]); |
| 44 shouldEvaluateToSameObject("entries[0].target", target); | 53 test(function() { assert_equals(entries[i].intersectionRect.top, expected[
6]) }, |
| 54 "entries[" + i + "].intersectionRect.top == " + expected[6]); |
| 55 test(function() { assert_equals(entries[i].intersectionRect.bottom, expect
ed[7]) }, |
| 56 "entries[" + i + "].intersectionRect.bottom == " + expected[7]); |
| 57 test(function() { assert_equals(entries[i].rootBounds.left, expected[8]) }
, |
| 58 "entries[" + i + "].rootBounds.left == " + expected[8]); |
| 59 test(function() { assert_equals(entries[i].rootBounds.right, expected[9])
}, |
| 60 "entries[" + i + "].rootBounds.right == " + expected[9]); |
| 61 test(function() { assert_equals(entries[i].rootBounds.top, expected[10]) }
, |
| 62 "entries[" + i + "].rootBounds.top == " + expected[10]); |
| 63 test(function() { assert_equals(entries[i].rootBounds.bottom, expected[11]
) }, |
| 64 "entries[" + i + "].rootBounds.bottom == " + expected[11]); |
| 65 test(function() { assert_true(entries[i].target === expected[12]) }, |
| 66 "entries[" + i + "].target === " + expected[12]); |
| 67 } |
| 45 } | 68 } |
| 46 root.removeChild(target); | |
| 47 waitForNotification(step2); | |
| 48 } | |
| 49 | 69 |
| 50 function step2() { | 70 function step0() { |
| 51 shouldBeEqualToNumber("entries.length", 2); | 71 test(function() { assert_equals(entries.length, 0) }, "No notifications afte
r first rAF."); |
| 52 if (entries.length > 1) { | 72 root.scrollTop = 150; |
| 53 shouldBeEqualToNumber("entries[1].boundingClientRect.left", 0); | 73 waitForNotification(step1); |
| 54 shouldBeEqualToNumber("entries[1].boundingClientRect.right", 0); | |
| 55 shouldBeEqualToNumber("entries[1].boundingClientRect.top", 0); | |
| 56 shouldBeEqualToNumber("entries[1].boundingClientRect.bottom", 0) | |
| 57 shouldBeEqualToNumber("entries[1].intersectionRect.left", 0); | |
| 58 shouldBeEqualToNumber("entries[1].intersectionRect.right", 0); | |
| 59 shouldBeEqualToNumber("entries[1].intersectionRect.top", 0); | |
| 60 shouldBeEqualToNumber("entries[1].intersectionRect.bottom", 0); | |
| 61 shouldBeEqualToNumber("entries[1].rootBounds.left", 0); | |
| 62 shouldBeEqualToNumber("entries[1].rootBounds.right", 0); | |
| 63 shouldBeEqualToNumber("entries[1].rootBounds.top", 0); | |
| 64 shouldBeEqualToNumber("entries[1].rootBounds.bottom", 0); | |
| 65 shouldEvaluateToSameObject("entries[1].target", target); | |
| 66 } | 74 } |
| 67 root.scrollTop = 0; | |
| 68 root.insertBefore(target, afterTarget); | |
| 69 waitForNotification(step3); | |
| 70 } | |
| 71 | 75 |
| 72 function step3() { | 76 function step1() { |
| 73 shouldBeEqualToNumber("entries.length", 2); | 77 checkEntry(0, [11, 111, 161, 261, 11, 111, 161, 211, 11, 111, 11, 211, targe
t]); |
| 74 root.scrollTop = 150; | 78 root.removeChild(target); |
| 75 waitForNotification(step4); | 79 waitForNotification(step2); |
| 76 } | 80 } |
| 77 | 81 |
| 78 function step4() { | 82 function step2() { |
| 79 shouldBeEqualToNumber("entries.length", 3); | 83 checkEntry(1, [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, target]); |
| 80 if (entries.length > 2) { | 84 root.scrollTop = 0; |
| 81 shouldBeEqualToNumber("entries[2].boundingClientRect.left", 11); | 85 root.insertBefore(target, afterTarget); |
| 82 shouldBeEqualToNumber("entries[2].boundingClientRect.right", 111); | 86 waitForNotification(step3); |
| 83 shouldBeEqualToNumber("entries[2].boundingClientRect.top", 161); | |
| 84 shouldBeEqualToNumber("entries[2].boundingClientRect.bottom", 261); | |
| 85 shouldBeEqualToNumber("entries[2].intersectionRect.left", 11); | |
| 86 shouldBeEqualToNumber("entries[2].intersectionRect.right", 111); | |
| 87 shouldBeEqualToNumber("entries[2].intersectionRect.top", 161); | |
| 88 shouldBeEqualToNumber("entries[2].intersectionRect.bottom", 211); | |
| 89 shouldBeEqualToNumber("entries[2].rootBounds.left", 11); | |
| 90 shouldBeEqualToNumber("entries[2].rootBounds.right", 111); | |
| 91 shouldBeEqualToNumber("entries[2].rootBounds.top", 11); | |
| 92 shouldBeEqualToNumber("entries[2].rootBounds.bottom", 211); | |
| 93 shouldEvaluateToSameObject("entries[2].target", target); | |
| 94 } | 87 } |
| 95 finishJSTest(); | 88 |
| 96 } | 89 function step3() { |
| 90 checkEntry(1); |
| 91 root.scrollTop = 150; |
| 92 waitForNotification(step4); |
| 93 } |
| 94 |
| 95 function step4() { |
| 96 checkEntry(2, [11, 111, 161, 261, 11, 111, 161, 211, 11, 111, 11, 211, targe
t]); |
| 97 t.done(); |
| 98 } |
| 99 }; |
| 97 </script> | 100 </script> |
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