| <!-- webkit-test-runner [ UsesBackForwardCache=true ] --> |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <script src="../../resources/js-test.js"></script> |
| </head> |
| <body> |
| <img src="../dom/resources/abe.png"> |
| <a id="testLink" style="display: none" href="resources/page-cache-helper.html">Link</a> |
| <script> |
| description('Tests that a page with a pending createImageBitmap promise is able to enter the page cache.'); |
| jsTestIsAsync = true; |
| let restoredFromPageCache = false; |
| |
| window.addEventListener("pageshow", function(event) { |
| debug("pageshow - " + (event.persisted ? "" : "not ") + "from cache"); |
| if (event.persisted) { |
| debug("PASS - Page did enter and was restored from the page cache"); |
| restoredFromPageCache = true; |
| } |
| }); |
| |
| function createImage() |
| { |
| createImageBitmap(blob).then((result) => { |
| imageBitmap = result; |
| shouldBeTrue("!!imageBitmap"); |
| shouldBeTrue("restoredFromPageCache"); |
| finishJSTest(); |
| }, () => { |
| createImage(); |
| }); |
| } |
| |
| window.addEventListener("pagehide", function(event) { |
| debug("pagehide - " + (event.persisted ? "" : "not ") + "entering cache"); |
| if (!event.persisted) { |
| debug("FAIL - Page did not enter the page cache."); |
| finishJSTest(); |
| } |
| |
| createImage(); |
| }); |
| |
| window.addEventListener('load', function() { |
| setTimeout(() => { |
| let img = document.querySelector('img'); |
| let canvas = document.createElement('canvas'); |
| canvas.width = img.clientWidth; |
| canvas.height = img.clientHeight; |
| |
| let context = canvas.getContext('2d'); |
| context.drawImage(img, 0, 0); |
| canvas.toBlob((_blob) => { |
| blob = _blob; |
| testLink.click(); |
| }, 'image/png'); |
| }, 0); |
| }); |
| </script> |
| </body> |
| </html> |
