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