| <!DOCTYPE html> |
| |
| <html> |
| <head> |
| <style> |
| body { |
| height: 2000px; |
| } |
| #test { |
| height: 200px; |
| width: 250px; |
| border: 1px solid black; |
| background-image: linear-gradient(blue, green); |
| background-size: 100% 300px; |
| background-attachment: fixed; |
| } |
| </style> |
| <script> |
| if (window.testRunner) { |
| testRunner.dumpAsText(); |
| testRunner.waitUntilDone(); |
| } |
| |
| function documentLoaded() |
| { |
| // Timeout is required to allow layers to paint before the scroll. |
| window.setTimeout(doTest, 0); |
| } |
| |
| function doTest() |
| { |
| if (window.internals) |
| window.internals.startTrackingRepaints(); |
| |
| window.scrollTo(0, 100); |
| |
| if (window.internals) |
| document.getElementById('repaintRects').textContent = window.internals.layerTreeAsText(document, internals.LAYER_TREE_INCLUDES_REPAINT_RECTS); |
| |
| if (window.testRunner) |
| testRunner.notifyDone(); |
| } |
| |
| window.addEventListener('load', documentLoaded, false); |
| </script> |
| </head> |
| <body> |
| |
| <p>We should only repaint the bounds of the element with a fixed background.</p> |
| <div id="test"></div> |
| <pre id="repaintRects"></pre> |
| |
| </body> |
| </html> |
