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Issue 1449623002:
IntersectionObserver: second cut. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src@master| OLD | NEW |
|---|---|
| (Empty) | |
| 1 <!DOCTYPE html> | |
| 2 <div style="width:100%;height:700px;"></div> | |
| 3 <div id="target" style="background-color: green; width:100px; height:100px"></di v> | |
| 4 <div style="width:100%; height:700px;"></div> | |
|
esprehn
2015/12/12 00:14:13
ditto for this whole test
szager1
2015/12/16 19:15:34
Done.
| |
| 5 | |
| 6 <script src="../resources/js-test.js"></script> | |
| 7 <script src="helper-functions.js"></script> | |
| 8 <script> | |
| 9 description("Intersection observer test with multiple thresholds."); | |
| 10 var target = document.getElementById("target"); | |
| 11 var entries = []; | |
| 12 | |
| 13 observer_callback = function(changes) { | |
| 14 for (var i in changes) | |
| 15 entries.push(changes[i]); | |
| 16 }; | |
| 17 var observer = new IntersectionObserver(observer_callback, { | |
| 18 threshold: [0, 0.25, 0.5, 0.75] | |
| 19 }); | |
| 20 observer.observe(target); | |
| 21 | |
| 22 // TODO: It shouldn't be necessary to RAF after the call to observer() | |
| 23 // and before changing the scroll position, but it is. | |
| 24 | |
| 25 var expected0 = []; | |
| 26 function step0() { | |
| 27 setTimeout(function() { | |
| 28 checkResults(expected0, "entries"); | |
| 29 document.scrollingElement.scrollTop = 120; | |
| 30 requestAnimationFrame(step1); | |
| 31 }); | |
| 32 } | |
| 33 | |
| 34 var expected1 = [ | |
| 35 { | |
| 36 'boundingClientRect': [ 8, 108, 588, 688 ], | |
| 37 'intersectionRect': [ 8, 108, 588, 600 ], | |
| 38 'rootBounds' : [ 0, 785, 0, 600 ], | |
| 39 'target': target | |
| 40 }, | |
| 41 ]; | |
| 42 function step1() { | |
| 43 setTimeout(function() { | |
| 44 checkResults(expected1, "entries"); | |
| 45 document.scrollingElement.scrollTop = 160; | |
| 46 requestAnimationFrame(step2); | |
| 47 }); | |
| 48 } | |
| 49 | |
| 50 var expected2 = expected1.concat([ | |
| 51 { | |
| 52 'boundingClientRect': [ 8, 108, 548, 648 ], | |
| 53 'intersectionRect': [ 8, 108, 548, 600 ], | |
| 54 'rootBounds' : [ 0, 785, 0, 600 ], | |
| 55 'target': target | |
| 56 } | |
| 57 ]); | |
| 58 function step2() { | |
| 59 setTimeout(function() { | |
| 60 checkResults(expected2, "entries", 1); | |
| 61 document.scrollingElement.scrollTop = 200; | |
| 62 requestAnimationFrame(step3); | |
| 63 }); | |
| 64 } | |
| 65 | |
| 66 var expected3 = expected2.concat([ | |
| 67 { | |
| 68 'boundingClientRect': [ 8, 108, 508, 608 ], | |
| 69 'intersectionRect': [ 8, 108, 508, 600 ], | |
| 70 'rootBounds' : [ 0, 785, 0, 600 ], | |
| 71 'target': target | |
| 72 } | |
| 73 ]); | |
| 74 function step3() { | |
| 75 setTimeout(function() { | |
| 76 checkResults(expected3, "entries", 2); | |
| 77 document.scrollingElement.scrollTop = 240; | |
| 78 requestAnimationFrame(step4); | |
| 79 }); | |
| 80 } | |
| 81 | |
| 82 var expected4 = expected3; | |
| 83 function step4() { | |
| 84 setTimeout(function() { | |
| 85 checkResults(expected4, "entries", 3); | |
| 86 document.scrollingElement.scrollTop = 740; | |
| 87 requestAnimationFrame(step5); | |
| 88 }); | |
| 89 } | |
| 90 | |
| 91 var expected5 = expected4.concat([ | |
| 92 { | |
| 93 'boundingClientRect': [ 8, 108, -32, 68 ], | |
| 94 'intersectionRect': [ 8, 108, 0, 68 ], | |
| 95 'rootBounds' : [ 0, 785, 0, 600 ], | |
| 96 'target': target | |
| 97 } | |
| 98 ]); | |
| 99 function step5() { | |
| 100 setTimeout(function() { | |
| 101 checkResults(expected5, "entries", 3); | |
| 102 document.scrollingElement.scrollTop = 760; | |
| 103 requestAnimationFrame(step6); | |
| 104 }); | |
| 105 } | |
| 106 | |
| 107 var expected6 = expected5.concat([ | |
| 108 { | |
| 109 'boundingClientRect': [ 8, 108, -52, 48 ], | |
| 110 'intersectionRect': [ 8, 108, 0, 48 ], | |
| 111 'rootBounds' : [ 0, 785, 0, 600 ], | |
| 112 'target': target | |
| 113 } | |
| 114 ]); | |
| 115 function step6() { | |
| 116 setTimeout(function() { | |
| 117 checkResults(expected6, "entries", 4); | |
| 118 document.scrollingElement.scrollTop = 800; | |
| 119 requestAnimationFrame(step7); | |
| 120 }); | |
| 121 } | |
| 122 | |
| 123 var expected7 = expected6.concat([ | |
| 124 { | |
| 125 'boundingClientRect': [ 8, 108, -92, 8 ], | |
| 126 'intersectionRect': [ 8, 108, 0, 8 ], | |
| 127 'rootBounds' : [ 0, 785, 0, 600 ], | |
| 128 'target': target | |
| 129 } | |
| 130 ]); | |
| 131 function step7() { | |
| 132 setTimeout(function() { | |
| 133 checkResults(expected7, "entries", 5); | |
| 134 document.scrollingElement.scrollTop = 820; | |
| 135 requestAnimationFrame(step8); | |
| 136 }); | |
| 137 } | |
| 138 | |
| 139 var expected8 = expected7.concat([ | |
| 140 { | |
| 141 'boundingClientRect': [ 8, 108, -112, -12 ], | |
| 142 'intersectionRect': [ 0, 0, 0, 0 ], | |
| 143 'rootBounds' : [ 0, 785, 0, 600 ], | |
| 144 'target': target | |
| 145 } | |
| 146 ]); | |
| 147 function step8() { | |
| 148 setTimeout(function() { | |
| 149 checkResults(expected8, "entries", 6); | |
| 150 finishTest(); | |
| 151 document.scrollingElement.scrollTop = 0; | |
| 152 }); | |
| 153 } | |
| 154 requestAnimationFrame(step0); | |
| 155 </script> | |
| OLD | NEW |
