| <!DOCTYPE html> <!-- webkit-test-runner [ AsyncOverflowScrollingEnabled=true ] --> |
| <html> |
| <head> |
| <title>Change scrollability on content resize</title> |
| <meta name="viewport" content="width=device-width"> |
| <style> |
| .scrollable { |
| position: absolute; |
| left: 0px; |
| top: 0px; |
| width: 200px; |
| height: 200px; |
| overflow: auto; |
| -webkit-overflow-scrolling: touch; |
| border: 5px solid orange; |
| margin: 5px; |
| } |
| .scrollable-content { |
| width: 100px; |
| height: 100px; |
| background: lightgreen; |
| } |
| .overflowing { |
| height: 400px; |
| } |
| .composited { |
| z-index: -1; |
| position: absolute; |
| left: 0px; |
| top: 0px; |
| width: 50px; |
| height: 50px; |
| transform: translate3d(175px, 0px, -5px) rotate(30deg); |
| background: blue; |
| } |
| #compositedBecomeNonScrollable { |
| position: absolute; |
| left: 0px; |
| top: 0px; |
| } |
| #compositedBecomeScrollable { |
| position: absolute; |
| left: 250px; |
| top: 0px; |
| } |
| #nonCompositedBecomeNonScrollable { |
| position: absolute; |
| left: 0px; |
| top: 250px; |
| } |
| #nonCompositedBecomeScrollable { |
| position: absolute; |
| left: 250px; |
| top: 250px; |
| } |
| </style> |
| <script> |
| if (window.testRunner) { |
| testRunner.dumpAsText(); |
| testRunner.waitUntilDone(); |
| } |
| |
| function doTest() { |
| requestAnimationFrame(() => { |
| document.querySelectorAll('.scrollable-content').forEach((div) => { |
| div.classList.toggle('overflowing'); |
| }); |
| if (window.testRunner && window.internals) { |
| requestAnimationFrame(() => { |
| document.getElementById('layerTree').innerText = internals.layerTreeAsText(document, |
| internals.LAYER_TREE_INCLUDES_VISIBLE_RECTS | internals.LAYER_TREE_INCLUDES_TILE_CACHES) + "\n\n" + |
| internals.scrollingStateTreeAsText() + "\n"; |
| testRunner.notifyDone(); |
| }); |
| } |
| }); |
| } |
| window.addEventListener('load', doTest, false); |
| </script> |
| </head> |
| <body> |
| <div id="compositedBecomeNonScrollable"> |
| <div class="scrollable"> |
| <div class="scrollable-content overflowing"> |
| 0 |
| </div> |
| </div> |
| <div class="composited"></div> |
| </div> |
| <div id="compositedBecomeScrollable"> |
| <div class="scrollable"> |
| <div class="scrollable-content"> |
| 1 |
| </div> |
| </div> |
| <div class="composited"></div> |
| </div> |
| <div id="nonCompositedBecomeNonScrollable"> |
| <div class="scrollable"> |
| <div class="scrollable-content overflowing"> |
| 2 |
| </div> |
| </div> |
| </div> |
| <div id="nonCompositedBecomeScrollable"> |
| <div class="scrollable"> |
| <div class="scrollable-content"> |
| 3 |
| </div> |
| </div> |
| </div> |
| <pre id="layerTree"></pre> |
| </body> |
| </html> |
