| OLD | NEW |
|---|
| (Empty) | |
| 1 <!DOCTYPE html> |
| 2 <style> |
| 3 #container { |
| 4 position: absolute; |
| 5 top: 0; |
| 6 left: 0; |
| 7 right: 0; |
| 8 bottom: 0; |
| 9 overflow: scroll; |
| 10 } |
| 11 .translated { |
| 12 position: absolute; |
| 13 right: 8px; |
| 14 left: 8px; |
| 15 height: 400px; |
| 16 } |
| 17 #cards { |
| 18 width: 400px; |
| 19 height: 8000px; |
| 20 position: relative; |
| 21 } |
| 22 .scrolled { |
| 23 position:absolute; |
| 24 width:100%; |
| 25 height:100%; |
| 26 background:green; |
| 27 } |
| 28 </style> |
| 29 <div id="container"> |
| 30 <div id="cards"> |
| 31 <div class="translated"> |
| 32 <div class="scrolled"></div> |
| 33 </div> |
| 34 <div class="translated" style="transform: translate(0,430px)"> |
| 35 <div class="scrolled"></div> |
| 36 </div> |
| 37 </div> |
| 38 </div> |
| 39 |
| 40 <script src='../../resources/js-test.js'></script> |
| 41 |
| 42 <script> |
| 43 description('Verifies that scroll children do not create ancestor clipping ' + |
| 44 'layers in compositor.'); |
| 45 |
| 46 if (window.internals) |
| 47 internals.settings.setPreferCompositingToLCDTextEnabled(true); |
| 48 |
| 49 function scrollChildHasNoScrollClip(layer) { |
| 50 if (layer.children) { |
| 51 for (var i = 0; i < layer.children.length; i++) { |
| 52 var child = layer.children[i]; |
| 53 // The only layer that should have a transform in this example is the |
| 54 // scroll child. If this is not the case, we have a scroll clip. |
| 55 if (child.transform && child.hasScrollParent) |
| 56 return true; |
| 57 |
| 58 if (scrollChildHasNoScrollClip(child)) |
| 59 return true; |
| 60 } |
| 61 } |
| 62 return false; |
| 63 } |
| 64 |
| 65 onload = function() { |
| 66 if (!window.internals) |
| 67 return; |
| 68 documentLayerTree = JSON.parse(window.internals.layerTreeAsText( |
| 69 document, window.internals.LAYER_TREE_INCLUDES_CLIP_AND_SCROLL_PARENTS)); |
| 70 shouldBe('scrollChildHasNoScrollClip(documentLayerTree)', 'true'); |
| 71 }; |
| 72 </script> |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1114543004:
Avoid creating ancestor clipping layers for scroll children (Closed)
Base URL: svn://svn.chromium.org/blink/trunk