| <!DOCTYPE html> |
| <html> |
| <body> |
| <canvas style="position:absolute; top:40px; left:40px" width="200" height="200"></canvas> |
| <script src="../resources/js-test.js"></script> |
| <script> |
| testRunner.waitUntilDone(); |
| testRunner.dumpAsText(); |
| requestAnimationFrame(() => { |
| var canvas = document.querySelector("canvas"); |
| var context = canvas.getContext("2d"); |
| context.fillStyle = "red"; |
| context.fillRect(0, 0, 200, 200); |
| internals.setPageScaleFactor(2); |
| internals.setVisualViewportOffset(200, 200); |
| requestAnimationFrame(() => { |
| testRunner.copyImageAtAndCapturePixelsAsyncThen(0, 0, (width, height, snapshot) => { |
| try { |
| if (width !== 200 || height !== 200) |
| testFailed("The copied image must be 200x200."); |
| var topleft = new Uint8Array(snapshot).subarray(0, 4); |
| if (topleft[0] !== 255 || topleft[1] !== 0 || topleft[2] !== 0 || topleft[3] !== 255) |
| testFailed("The copied image's top left must be red. " + JSON.stringify(topleft)); |
| } catch (e) { |
| testFailed("" + e); |
| } |
| testRunner.notifyDone(); |
| }); |
| }); |
| }); |
| </script> |
| </body> |
| </html> |
