third_party/WebKit/LayoutTests/intersection-observer/same-document-no-root.html - Issue 1449623002: IntersectionObserver: second cut.

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Issue 1449623002: IntersectionObserver: second cut. (Closed) Base URL: https://chromium.googlesource.com/chromium/src@master

Patch Set: Add RuntimeEnabled flags to all idl's, fix test expectations. Created 4 years, 11 months ago

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	1 <!DOCTYPE html>

	2 <script src="../resources/js-test.js"></script>

	3 <script src="helper-functions.js"></script>

	4 <div style="width:100%; height:700px;"></div>

	5 <div id="target" style="background-color: green; width:100px; height:100px"></di v>

	6 <div style="width:100%; height:700px;"></div>

	7

	8 <script>

	9 description("Simple intersection observer test with no explicit root and one d ocument.");

	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 observer.observe(target);

	19

	20 // TODO(szager): It shouldn't be necessary to RAF after the call to observer()

	21 // and before changing the scroll position, but it is.

	22

	23 function step0() {

	24 setTimeout(function() {

	25 shouldBeEqualToNumber("entries.length", 0);

	26 document.scrollingElement.scrollTop = 300;

	27 requestAnimationFrame(step1);

	28 });

	29 }

	30

	31 function step1() {

	32 setTimeout(function() {

	33 shouldBeEqualToNumber("entries.length", 1);

	34 shouldBeEqualToNumber("entries[0].boundingClientRect.left", 8);

	35 shouldBeEqualToNumber("entries[0].boundingClientRect.right", 108);

	36 shouldBeEqualToNumber("entries[0].boundingClientRect.top", 408);

	37 shouldBeEqualToNumber("entries[0].boundingClientRect.bottom", 508);

	38 shouldBeEqualToNumber("entries[0].intersectionRect.left", 8);

	39 shouldBeEqualToNumber("entries[0].intersectionRect.right", 108);

	40 shouldBeEqualToNumber("entries[0].intersectionRect.top", 408);

	41 shouldBeEqualToNumber("entries[0].intersectionRect.bottom", 508);

	42 shouldBeEqualToNumber("entries[0].rootBounds.left", 0);

	43 shouldBeEqualToNumber("entries[0].rootBounds.right", 785);

	44 shouldBeEqualToNumber("entries[0].rootBounds.top", 0);

	45 shouldBeEqualToNumber("entries[0].rootBounds.bottom", 600);

	46 shouldEvaluateToSameObject("entries[0].target", target);

	47

	48 // ClientRect members of IntersectionObserverEntry should be stable.

	49 shouldEvaluateToSameObject("entries[0].boundingClientRect", entries[0].bou ndingClientRect);

	50 shouldEvaluateToSameObject("entries[0].intersectionRect", entries[0].inter sectionRect);

	51 shouldEvaluateToSameObject("entries[0].rootBounds", entries[0].rootBounds) ;

	52

	53 document.scrollingElement.scrollTop = 100;

	54 requestAnimationFrame(step2);

	55 });

	56 }

	57

	58 function step2() {

	59 setTimeout(function() {

	60 shouldBeEqualToNumber("entries.length", 2);

	61 shouldBeEqualToNumber("entries[1].boundingClientRect.left", 8);

	62 shouldBeEqualToNumber("entries[1].boundingClientRect.right", 108);

	63 shouldBeEqualToNumber("entries[1].boundingClientRect.top", 608);

	64 shouldBeEqualToNumber("entries[1].boundingClientRect.bottom", 708);

	65 shouldBeEqualToNumber("entries[1].intersectionRect.left", 0);

	66 shouldBeEqualToNumber("entries[1].intersectionRect.right", 0);

	67 shouldBeEqualToNumber("entries[1].intersectionRect.top", 0);

	68 shouldBeEqualToNumber("entries[1].intersectionRect.bottom", 0);

	69 shouldBeEqualToNumber("entries[1].rootBounds.left", 0);

	70 shouldBeEqualToNumber("entries[1].rootBounds.right", 785);

	71 shouldBeEqualToNumber("entries[1].rootBounds.top", 0);

	72 shouldBeEqualToNumber("entries[1].rootBounds.bottom", 600);

	73 shouldEvaluateToSameObject("entries[1].target", target);

	74 finishTest();

	75 document.scrollingElement.scrollTop = 0;

	76 });

	77 }

	78

	79 requestAnimationFrame(step0);

	80 </script>

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