<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=743615 --> <head> <meta charset="utf-8"> <title>Test for Bug 743615</title> <script src="/tests/SimpleTest/SimpleTest.js"></script> <script type="application/javascript" src="utils_bug743615.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> </head> <body> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=743615">Mozilla Bug 743615</a> <p id="display"></p> <div id="content" style="display: none"> <canvas id="c" width="200" height="200"><canvas> </div> <pre id="test"> <script type="application/javascript"> /** Test for structured cloning ImageData. **/ SimpleTest.waitForExplicitFinish(); window.addEventListener('message', windowMessage); startTest(); function startTest() { // Make an ImageData. var ctx = document.getElementById('c').getContext('2d'); ctx.fillStyle = 'rgb('; ctx.fillRect(30, 30, 50, 50); // Make a blank ImageData. var imageData = ctx.createImageData(200, 200); is(imageData.data.length, imageData.width * imageData.height * 4, 'right size for data'); // Write some things into it. var pattern = makePattern(imageData.data.length, 42, 7); setPattern(imageData, pattern); ok(checkPattern(imageData, pattern), 'Can read it back before sending'); // PostMessage it to ourselves. window.postMessage({ imageData, pattern, dataRef: imageData.data }, '*'); } function windowMessage(evt) { // Check the pattern we received. var imageData = evt.data.imageData; var pattern = evt.data.pattern; ok(checkPattern(imageData, pattern), 'postMessage from self worked correctly'); is(imageData.data, evt.data.dataRef, 'Should have backrefs for imagedata buffer'); // Make a new pattern, and send it to a worker. pattern = makePattern(imageData.data.length, 4, 3); setPattern(imageData, pattern); var worker = new Worker('worker_bug743615.js'); worker.onmessage = workerMessage; worker.postMessage( {imageData, pattern }); } function workerMessage(evt) { // Relay the results of the worker-side tests. is(evt.data.statusMessage, 'PASS', evt.data.statusMessage); // Test what the worker sent us. ok(checkPattern(evt.data.imageData, evt.data.pattern), 'postMessage from worker worked correctly'); // All done. SimpleTest.finish(); } </script> </pre> </body> </html>