third_party/WebKit/LayoutTests/compositing/change-preferCompositingToLCDText-setting.html - Issue 2397333002: Change layerTreeAsText to default to layer lists.

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Issue 2397333002: Change layerTreeAsText to default to layer lists. (Closed)

Patch Set: none Created 4 years, 2 months ago

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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 <style>	4 <style>

5 #scroller {	5 #scroller {

6 overflow: scroll;	6 overflow: scroll;

7 height: 300px;	7 height: 300px;

8 width: 300px;	8 width: 300px;

9 background-color: rgba(255,0,0,0.5); /* Force non-promotion due to backgroun d opacity */;	9 background-color: rgba(255,0,0,0.5); /* Force non-promotion due to backgroun d opacity */;

10 }	10 }

11	11

12 #scrolled {	12 #scrolled {

13 height: 1000px;	13 height: 1000px;

14 width: 250px;	14 width: 250px;

15 background-color: rgba(0,128,0,0.5); /* Force non-promotion due to backgroun d opacity */;	15 background-color: rgba(0,128,0,0.5); /* Force non-promotion due to backgroun d opacity */;

16 }	16 }

17 </style>	17 </style>

18	18

19 <script>	19 <script>

20	20

21 var t = async_test("Check that the preferCompositingToLCDText flag results in co mpositing");	21 var t = async_test("Check that the preferCompositingToLCDText flag results in co mpositing");

22	22

23 function isUsingCompositedScrolling(layer) {	23 function isUsingCompositedScrolling() {

24 layer = layer \|\| JSON.parse(window.internals.layerTreeAsText(document));	24 var layers = JSON.parse(window.internals.layerTreeAsText(document));

25 if (layer.bounds[1] == 1000)	25 var found = false;

26 return true;	26 layers["layers"].forEach(function(layer) {

27 if (layer.children) {	27 if (layer.bounds[1] == 1000)

28 for (var i = 0; i < layer.children.length; i++) {	28 found = true;

29 if (isUsingCompositedScrolling(layer.children[i]))	29 });

30 return true;	30 return found;

31 }

32 }

33 return false;

34 }	31 }

35	32

36 window.onload = function() {	33 window.onload = function() {

37 t.step(function() {	34 t.step(function() {

38 assert_not_equals(window.internals, null, 'This test requires window.interna ls');	35 assert_not_equals(window.internals, null, 'This test requires window.interna ls');

39	36

40 window.internals.settings.setPreferCompositingToLCDTextEnabled(false);	37 window.internals.settings.setPreferCompositingToLCDTextEnabled(false);

41 var stateBefore = isUsingCompositedScrolling();	38 var stateBefore = isUsingCompositedScrolling();

42 window.internals.settings.setPreferCompositingToLCDTextEnabled(true);	39 window.internals.settings.setPreferCompositingToLCDTextEnabled(true);

43 var stateAfter = isUsingCompositedScrolling();	40 var stateAfter = isUsingCompositedScrolling();

44	41

45 assert_false(stateBefore, 'Composited scrolling began disabled');	42 assert_false(stateBefore, 'Composited scrolling began disabled');

46 assert_true(stateAfter, 'Composited scrolling became enabled');	43 assert_true(stateAfter, 'Composited scrolling became enabled');

47 t.done();	44 t.done();

48 });	45 });

49 };	46 };

50 </script>	47 </script>

51	48

52 <div id="scroller">	49 <div id="scroller">

53 <div id="scrolled"></div>	50 <div id="scrolled"></div>

54 </div>	51 </div>

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