| <!DOCTYPE html> |
| <html class="reftest-wait"> |
| <link rel="help" href="https://drafts.css-houdini.org/css-paint-api/"> |
| <link rel="match" href="device-pixel-ratio-ref.html"> |
| <style> |
| html, body { margin: 0; padding: 0; } |
| .container { |
| width: 150px; |
| height: 150px; |
| } |
| |
| #canvas-geometry { |
| background-image: paint(geometry); |
| } |
| </style> |
| <script src="/common/reftest-wait.js"></script> |
| <script src="/common/worklet-reftest.js"></script> |
| <body> |
| <p>This test ensures that the PaintWorkletGlobalScope.devicePixelRatio returns |
| the correct value, which should be identical as window.devicePixelRatio. To |
| manually test, open both this file and "device-pixel-ratio-ref.html" with a |
| browser, and you should see two idential green rectangles.</p> |
| <div id="canvas-geometry" class="container"></div> |
| |
| <script id="code" type="text/worklet"> |
| registerPaint('geometry', class { |
| paint(ctx, geom) { |
| ctx.fillStyle = 'green'; |
| var draw_width = Math.floor(geom.width / devicePixelRatio); |
| var draw_height = Math.floor(geom.height / devicePixelRatio); |
| ctx.fillRect(0, 0, draw_width, draw_height); |
| } |
| }); |
| </script> |
| |
| <script> |
| importWorkletAndTerminateTestAfterAsyncPaint(CSS.paintWorklet, document.getElementById('code').textContent); |
| </script> |
| </body> |
| </html> |
