third_party/WebKit/LayoutTests/intersection-observer/iframe-no-root.html - Issue 2645283008: IntersectionObserver: Always send an initial notification.

Side by Side Diff: third_party/WebKit/LayoutTests/intersection-observer/iframe-no-root.html

Issue 2645283008: IntersectionObserver: Always send an initial notification. (Closed)

Patch Set: Fix unit test Created 3 years, 10 months ago

Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.

Jump to:

« no previous file with comments | « third_party/WebKit/LayoutTests/intersection-observer/edge-inclusive-intersection.html ('k') | third_party/WebKit/LayoutTests/intersection-observer/multiple-targets.html » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Hide Comments ('s')

OLD	NEW
1 <!DOCTYPE html>	1 <!DOCTYPE html>

2 <script src="../resources/testharness.js"></script>	2 <script src="../resources/testharness.js"></script>

3 <script src="../resources/testharnessreport.js"></script>	3 <script src="../resources/testharnessreport.js"></script>

4 <script src="./resources/intersection-observer-test-utils.js"></script>	4 <script src="./resources/intersection-observer-test-utils.js"></script>

5	5

6 <style>	6 <style>

7 pre, #log {	7 pre, #log {

8 position: absolute;	8 position: absolute;

9 top: 0;	9 top: 0;

10 left: 200px;	10 left: 200px;

(...skipping 23 matching lines...) Expand all Loading...
34 assert_equals(window.innerHeight, 600, "Window must be 600 pixels high.");	34 assert_equals(window.innerHeight, 600, "Window must be 600 pixels high.");

35	35

36 target = iframe.contentDocument.getElementById("target");	36 target = iframe.contentDocument.getElementById("target");

37 assert_true(!!target, "Target element exists.");	37 assert_true(!!target, "Target element exists.");

38 var observer = new IntersectionObserver(function(changes) {	38 var observer = new IntersectionObserver(function(changes) {

39 entries = entries.concat(changes)	39 entries = entries.concat(changes)

40 });	40 });

41 observer.observe(target);	41 observer.observe(target);

42 entries = entries.concat(observer.takeRecords());	42 entries = entries.concat(observer.takeRecords());

43 assert_equals(entries.length, 0, "No initial notifications.");	43 assert_equals(entries.length, 0, "No initial notifications.");

44 runTestCycle(step0, "No notifications after first rAF.");	44 runTestCycle(step0, "First rAF.");

45 }, "Observer with the implicit root; target in a same-origin iframe.");	45 }, "Observer with the implicit root; target in a same-origin iframe.");

46 };	46 };

47	47

48 function step0() {	48 function step0() {

49 document.scrollingElement.scrollTop = 200;	49 document.scrollingElement.scrollTop = 200;

50 runTestCycle(step1, "document.scrollingElement.scrollTop = 200");	50 runTestCycle(step1, "document.scrollingElement.scrollTop = 200");

51 assert_equals(entries.length, 0, "entries.length == 0");	51 checkLastEntry(entries, 0, [8, 108, 208, 308, 0, 0, 0, 0, 0, 785, 0, 600, targ et]);

52 }	52 }

53	53

54 function step1() {	54 function step1() {

55 iframe.contentDocument.scrollingElement.scrollTop = 250;	55 iframe.contentDocument.scrollingElement.scrollTop = 250;

56 runTestCycle(step2, "iframe.contentDocument.scrollingElement.scrollTop = 250") ;	56 runTestCycle(step2, "iframe.contentDocument.scrollingElement.scrollTop = 250") ;

57 assert_equals(entries.length, 0, "entries.length == 0");	57 assert_equals(entries.length, 1, "entries.length == 1");

58 }	58 }

59	59

60 function step2() {	60 function step2() {

61 document.scrollingElement.scrollTop = 100;	61 document.scrollingElement.scrollTop = 100;

62 runTestCycle(step3, "document.scrollingElement.scrollTop = 100");	62 runTestCycle(step3, "document.scrollingElement.scrollTop = 100");

63 checkLastEntry(entries, 0, [8, 108, -42, 58, 8, 108, 0, 58, 0, 785, 0, 600, ta rget]);	63 checkLastEntry(entries, 1, [8, 108, -42, 58, 8, 108, 0, 58, 0, 785, 0, 600, ta rget]);

64 }	64 }

65	65

66 function step3() {	66 function step3() {

67 checkLastEntry(entries, 1, [8, 108, -42, 58, 0, 0, 0, 0, 0, 785, 0, 600, targe t]);	67 checkLastEntry(entries, 2, [8, 108, -42, 58, 0, 0, 0, 0, 0, 785, 0, 600, targe t]);

68 document.scrollingElement.scrollTop = 0;	68 document.scrollingElement.scrollTop = 0;

69 }	69 }

70 </script>	70 </script>

OLD	NEW