| <!DOCTYPE html> |
| |
| <html> |
| <head> |
| <style> |
| .box { |
| width: 300px; |
| height: 300px; |
| background-color: blue; |
| } |
| |
| .composited { |
| -webkit-transform: translateZ(0); |
| } |
| |
| .clipped { |
| -webkit-clip-path: inset(0 50px); |
| } |
| |
| .masked { |
| -webkit-mask: linear-gradient(white, transparent); |
| } |
| |
| body.changed .clipped { |
| -webkit-clip-path: inset(0 70px); |
| } |
| </style> |
| <script> |
| if (window.testRunner) { |
| testRunner.waitUntilDone(); |
| testRunner.dumpAsText(); |
| } |
| |
| function doTest() |
| { |
| window.setTimeout(function() { |
| window.setTimeout(function() { |
| if (window.internals) |
| window.internals.startTrackingRepaints(); |
| |
| document.body.classList.add('changed'); |
| |
| if (window.internals) |
| document.getElementById('repaintRects').textContent = window.internals.layerTreeAsText(document, internals.LAYER_TREE_INCLUDES_REPAINT_RECTS); |
| |
| if (window.testRunner) |
| testRunner.notifyDone(); |
| }, 0) |
| }, 0) |
| } |
| window.addEventListener('load', doTest, false); |
| </script> |
| </head> |
| <body> |
| <div class="clipped composited box">box1</div> |
| <div class="clipped masked composited box">box2</div> |
| <p>Only the second box should have a repaint.</p> |
| <pre id="repaintRects"></pre> |
| </body> |
| </html> |
