| <!DOCTYPE html> |
| |
| <html> |
| <head> |
| <style> |
| body { |
| background-color: white; |
| height: 1000px; |
| } |
| |
| body.transparent { |
| background-color: rgba(0, 0, 0, 0.2); |
| } |
| </style> |
| <script> |
| if (window.testRunner) { |
| testRunner.dumpAsText(); |
| testRunner.waitUntilDone(); |
| } |
| |
| function documentLoaded() |
| { |
| window.setTimeout(doTest, 0); |
| } |
| |
| function appendLayerDump() |
| { |
| if (window.internals) |
| document.getElementById('output').textContent += window.internals.layerTreeAsText(document, internals.LAYER_TREE_INCLUDES_TILE_CACHES); |
| } |
| |
| function doTest() |
| { |
| if (window.internals) |
| internals.setViewBaseBackgroundColor('transparent'); |
| appendLayerDump(); |
| |
| document.body.classList.add('transparent'); |
| appendLayerDump(); |
| |
| document.body.classList.remove('transparent'); |
| appendLayerDump(); |
| |
| if (window.internals) |
| internals.setViewBaseBackgroundColor('white'); |
| |
| document.body.classList.add('transparent'); |
| appendLayerDump(); |
| |
| if (window.testRunner) |
| testRunner.notifyDone(); |
| } |
| |
| window.addEventListener('load', documentLoaded, false); |
| </script> |
| </head> |
| <body> |
| |
| <p>Page tiles should be transparent if the body's background has alpha.</p> |
| <div id="test"></div> |
| <pre id="output"></pre> |
| |
| </body> |
| </html> |
