third_party/WebKit/LayoutTests/fragmentation/overflow-crossing-boundary.html - Issue 2462643002: Be more restrictive about forcing relayout of children for pagination.

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Issue 2462643002: Be more restrictive about forcing relayout of children for pagination. (Closed)

Patch Set: No need to call updateFragmentationInfoForChild() when not paginated. Created 4 years, 1 month ago

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	1 <!DOCTYPE html>

	2 <div id="multicol" style="position:relative; columns:2; column-fill:auto; line-h eight:20px; orphans:1; widows:1; background:yellow;">

	3 <div style="width:4em;">

	4 <div style="height:20px; background:hotpink;"></div>

	5 <div style="height:15px;">

	6 <div id="child1">line</div>

	7 <div id="child2">line</div>

	8 <div id="child3">line</div>

	9 <div id="child4">line</div>

	10 <div id="child5">line</div>

	11 </div>

	12 </div>

	13 </div>

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

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

	16 <script>

	17 test(() => {

	18 var multicol = document.getElementById("multicol");

	19 var child1 = document.getElementById("child1");

	20 var child2 = document.getElementById("child2");

	21 var child3 = document.getElementById("child3");

	22 var child4 = document.getElementById("child4");

	23 var child5 = document.getElementById("child5");

	24

	25 assert_equals(child1.offsetTop, 20);

	26 assert_equals(child2.offsetTop, 40);

	27 assert_equals(child3.offsetTop, 0);

	28 assert_equals(child4.offsetTop, 20);

	29 assert_equals(child5.offsetTop, 40);

	30

	31 multicol.style.height = "90px";

	32 assert_equals(child3.offsetTop, 60);

	33 assert_equals(child4.offsetTop, 0);

	34 assert_equals(child5.offsetTop, 20);

	35

	36 multicol.style.height = "80px";

	37 assert_equals(child3.offsetTop, 60);

	38 assert_equals(child4.offsetTop, 0);

	39 assert_equals(child5.offsetTop, 20);

	40

	41 multicol.style.height = "110px";

	42 assert_equals(child3.offsetTop, 60);

	43 assert_equals(child4.offsetTop, 80);

	44 assert_equals(child5.offsetTop, 0);

	45

	46 multicol.style.height = "200px";

	47 assert_equals(child3.offsetTop, 60);

	48 assert_equals(child4.offsetTop, 80);

	49 assert_equals(child5.offsetTop, 100);

	50

	51 multicol.style.height = "100px";

	52 assert_equals(child3.offsetTop, 60);

	53 assert_equals(child4.offsetTop, 80);

	54 assert_equals(child5.offsetTop, 0);

	55

	56 }, "Overflow should also be fragmented.");

	57 </script>

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