third_party/WebKit/LayoutTests/intersection-observer/iframe-root.html - Issue 1672273002: Enforce containing block requirement for IntersectionObserver.

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Issue 1672273002: Enforce containing block requirement for IntersectionObserver. (Closed) Base URL: https://chromium.googlesource.com/chromium/src@master

Patch Set: Add header file to patch. Created 4 years, 10 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="root" style="display: inline-block; overflow-y: scroll; height: 200px;" >

6 <div id="target" style="width:100px; height:300px"></div>

7 <iframe id="target-iframe" src="../resources/intersection-observer-subframe.ht ml" style="width: 300px; height: 100px; overflow-y: scroll"></iframe>

8 </div>

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

10

11 <script>

12 description("Simple intersection observer test with no explicit root and target in an iframe.");

13 var entries = [];

14 var root = document.getElementById("root");

15 var targetIframe = document.getElementById("target-iframe");

16

17 targetIframe.onload = function() {

18 var target = targetIframe.contentDocument.getElementById("target");

19 var iframeScroller = targetIframe.contentDocument.scrollingElement;

20

21 observer_callback = function(changes) {

22 for (var i in changes)

23 entries.push(changes[i]);

24 };

25 var observer = new IntersectionObserver(observer_callback, {"root": document.g etElementById("root")});

26 observer.observe(target);

27

28 function step0() {

29 setTimeout(function() {

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

31 document.scrollingElement.scrollTop = 250;

32 requestAnimationFrame(step1);

33 });

34 }

35

36 function step1() {

37 setTimeout(function() {

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

39 iframeScroller.scrollTop = 200;

40 requestAnimationFrame(step2);

41 });

42 }

43

44 function step2() {

45 setTimeout(function() {

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

47 root.scrollTop = 175;

48 requestAnimationFrame(step3);

49 });

50 }

51

52 function step3() {

53 setTimeout(function() {

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

55 shouldBeEqualToNumber("entries[0].boundingClientRect.left", 18);

56 shouldBeEqualToNumber("entries[0].boundingClientRect.right", 118);

57 shouldBeEqualToNumber("entries[0].boundingClientRect.top", 593);

58 shouldBeEqualToNumber("entries[0].boundingClientRect.bottom", 693);

59 shouldBeEqualToNumber("entries[0].intersectionRect.left", 18);

60 shouldBeEqualToNumber("entries[0].intersectionRect.right", 118);

61 shouldBeEqualToNumber("entries[0].intersectionRect.top", 593);

62 shouldBeEqualToNumber("entries[0].intersectionRect.bottom", 658);

63 shouldBeEqualToNumber("entries[0].rootBounds.left", 8);

64 shouldBeEqualToNumber("entries[0].rootBounds.right", 312);

65 shouldBeEqualToNumber("entries[0].rootBounds.top", 458);

66 shouldBeEqualToNumber("entries[0].rootBounds.bottom", 658);

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

68 document.scrollingElement.scrollTop = 100;

69 requestAnimationFrame(step4);

70 });

71 }

72

73 function step4() {

74 setTimeout(function() {

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

76 root.scrollTop = 100;

77 requestAnimationFrame(step5);

78 });

79 }

80

81 function step5() {

82 setTimeout(function() {

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

84 shouldBeEqualToNumber("entries[1].boundingClientRect.left", 18);

85 shouldBeEqualToNumber("entries[1].boundingClientRect.right", 118);

86 shouldBeEqualToNumber("entries[1].boundingClientRect.top", 818);

87 shouldBeEqualToNumber("entries[1].boundingClientRect.bottom", 918);

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

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

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

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

92 shouldBeEqualToNumber("entries[1].rootBounds.left", 8);

93 shouldBeEqualToNumber("entries[1].rootBounds.right", 312);

94 shouldBeEqualToNumber("entries[1].rootBounds.top", 608);

95 shouldBeEqualToNumber("entries[1].rootBounds.bottom", 808);

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

97 finishJSTest();

98 document.scrollingElement.scrollTop = 0;

99 });

100 }

101

102 step0();

103 }

104 </script>

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