LayoutTests/fast/css/invalidation/targeted-class-type-selectors.html - Issue 1349543004: CSS: Avoid invalidating style when only descendants need updating

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Issue 1349543004: CSS: Avoid invalidating style when only descendants need updating (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: invalidatesSelf Created 5 years, 3 months ago

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1 <!DOCTYPE html>	1 <!DOCTYPE html>

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

3 <style>	3 <style>

4 .a1 span { background-color: green }	4 .a1 span { background-color: green }

5 .a2 span + div { background-color: green }	5 .a2 span + div { background-color: green }

6 .a3 * { background-color: green }	6 .a3 * { background-color: green }

7 </style>	7 </style>

8 <div id="t1">	8 <div id="t1">

9 <span></span>	9 <span></span>

10 <span></span>	10 <span></span>

(...skipping 30 matching lines...) Expand all Loading...
41 for (var j=0; j<children[i].length; j++) {	41 for (var j=0; j<children[i].length; j++) {

42 var evalString = "getComputedStyle(children["+i+"]["+j+"], null).backgro undColor";	42 var evalString = "getComputedStyle(children["+i+"]["+j+"], null).backgro undColor";

43 shouldBe(evalString, "transparent");	43 shouldBe(evalString, "transparent");

44 }	44 }

45 }	45 }

46	46

47 document.body.offsetTop; // Force style recalc.	47 document.body.offsetTop; // Force style recalc.

48	48

49 document.getElementById("t1").className = "a1";	49 document.getElementById("t1").className = "a1";

50 if (window.internals)	50 if (window.internals)

51 shouldBe("internals.updateStyleAndReturnAffectedElementCount()", "3");	51 shouldBe("internals.updateStyleAndReturnAffectedElementCount()", "2");

52 shouldBe("getComputedStyle(children[0][0], null).backgroundColor", "green");	52 shouldBe("getComputedStyle(children[0][0], null).backgroundColor", "green");

53 shouldBe("getComputedStyle(children[0][1], null).backgroundColor", "green");	53 shouldBe("getComputedStyle(children[0][1], null).backgroundColor", "green");

54 shouldBe("getComputedStyle(children[0][2], null).backgroundColor", "transparent" );	54 shouldBe("getComputedStyle(children[0][2], null).backgroundColor", "transparent" );

55 shouldBe("getComputedStyle(children[0][3], null).backgroundColor", "transparent" );	55 shouldBe("getComputedStyle(children[0][3], null).backgroundColor", "transparent" );

56	56

57 document.body.offsetLeft; // force style recalc.	57 document.body.offsetLeft; // force style recalc.

58	58

59 document.getElementById("t2").className = "a2";	59 document.getElementById("t2").className = "a2";

60 if (window.internals)	60 if (window.internals)

61 shouldBe("internals.updateStyleAndReturnAffectedElementCount()", "3");	61 shouldBe("internals.updateStyleAndReturnAffectedElementCount()", "2");

62 shouldBe("getComputedStyle(children[1][0], null).backgroundColor", "transparent" );	62 shouldBe("getComputedStyle(children[1][0], null).backgroundColor", "transparent" );

63 shouldBe("getComputedStyle(children[1][1], null).backgroundColor", "transparent" );	63 shouldBe("getComputedStyle(children[1][1], null).backgroundColor", "transparent" );

64 shouldBe("getComputedStyle(children[1][2], null).backgroundColor", "green");	64 shouldBe("getComputedStyle(children[1][2], null).backgroundColor", "green");

65 shouldBe("getComputedStyle(children[1][3], null).backgroundColor", "transparent" );	65 shouldBe("getComputedStyle(children[1][3], null).backgroundColor", "transparent" );

66	66

67 document.body.offsetLeft; // force style recalc.	67 document.body.offsetLeft; // force style recalc.

68	68

69 document.getElementById("t3").className = "a3";	69 document.getElementById("t3").className = "a3";

70 if (window.internals)	70 if (window.internals)

71 shouldBe("internals.updateStyleAndReturnAffectedElementCount()", "5");	71 shouldBe("internals.updateStyleAndReturnAffectedElementCount()", "5");

72 shouldBe("getComputedStyle(children[2][0], null).backgroundColor", "green");	72 shouldBe("getComputedStyle(children[2][0], null).backgroundColor", "green");

73 shouldBe("getComputedStyle(children[2][1], null).backgroundColor", "green");	73 shouldBe("getComputedStyle(children[2][1], null).backgroundColor", "green");

74 shouldBe("getComputedStyle(children[2][2], null).backgroundColor", "green");	74 shouldBe("getComputedStyle(children[2][2], null).backgroundColor", "green");

75 shouldBe("getComputedStyle(children[2][3], null).backgroundColor", "green");	75 shouldBe("getComputedStyle(children[2][3], null).backgroundColor", "green");

76	76

77 </script>	77 </script>

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