| <!DOCTYPE html> |
| <html> |
| <head> |
| <script src="../../resources/js-test-pre.js"></script> |
| </head> |
| <body> |
| <img id="image"> |
| <canvas id="canvas"></canvas> |
| <script> |
| function drawFrame(image, canvas, frameIndex) { |
| return new Promise((resolve) => { |
| let context = canvas.getContext("2d"); |
| context.drawImage(image, 0, 0, 100, 100, 0, 0, canvas.width, canvas.height); |
| |
| if (window.internals) { |
| shouldBeGreaterThanOrEqual("internals.imageFrameIndex(image)", frameIndex.toString()); |
| image.addEventListener("webkitImageFrameReady", function() { |
| resolve(); |
| }, false); |
| } else { |
| setTimeout(() => { |
| resolve(); |
| }, 40); |
| } |
| }); |
| } |
| |
| function drawImage(image, canvas, frameCount) { |
| let promise = drawFrame(image, canvas, 0); |
| for (let frameIndex = 1; frameIndex < frameCount; ++frameIndex) { |
| promise = promise.then(() => { |
| return drawFrame(image, canvas, frameIndex); |
| }); |
| } |
| return promise; |
| } |
| |
| function loadImage(image, src, canvas, frameCount) { |
| return new Promise((resolve) => { |
| image.onload = (() => { |
| if (window.internals) { |
| internals.clearMemoryCache(); |
| internals.setImageFrameDecodingDuration(image, 0.050); |
| internals.settings.setAnimatedImageDebugCanvasDrawingEnabled(true); |
| internals.settings.setWebkitImageReadyEventEnabled(true); |
| } |
| drawImage(image, canvas, frameCount).then(resolve); |
| }); |
| image.src = src; |
| }); |
| } |
| |
| (function() { |
| description("Ensure the image frame is drawn when it finishes decoding even if it takes more than the previous frame duration."); |
| jsTestIsAsync = true; |
| |
| var image = document.getElementById("image"); |
| var canvas = document.getElementById("canvas"); |
| |
| loadImage(image, "resources/animated-red-green-blue.gif", canvas, 3).then(() => { |
| finishJSTest(); |
| }); |
| })(); |
| </script> |
| <script src="../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
