59 lines
1.8 KiB
HTML
59 lines
1.8 KiB
HTML
<!-- webkit-test-runner [ UsesBackForwardCache=true ] -->
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<!DOCTYPE html>
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<html>
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<body>
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<script src="../../resources/js-test.js"></script>
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<script>
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description('Tests document.visibilityState and the visibilitychange event when entering the backforward cache.');
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window.jsTestIsAsync = true;
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if (window.testRunner)
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testRunner.clearAllDatabases();
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let visibilityChangeEventCount = 0;
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window.addEventListener("pageshow", function(event) {
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debug("pageshow - " + (event.persisted ? "" : "not ") + "from cache");
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shouldBeEqualToString("document.visibilityState", "visible");
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if (event.persisted)
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shouldBe("visibilityChangeEventCount", "2");
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if (event.persisted) {
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testPassed("Page did enter and was restored from the page cache");
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finishJSTest();
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}
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}, false);
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window.addEventListener("pagehide", function(event) {
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debug("pagehide - " + (event.persisted ? "" : "not ") + "entering cache");
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shouldBeEqualToString("document.visibilityState", "visible");
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shouldBe("visibilityChangeEventCount", "0");
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if (!event.persisted) {
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testFailed("Page did not enter the page cache.");
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finishJSTest();
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}
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}, false);
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window.addEventListener('load', function() {
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setTimeout(function() {
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document.addEventListener("visibilitychange", () => {
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if (visibilityChangeEventCount > 2)
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return;
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++visibilityChangeEventCount;
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debug("visibilitychange - visibilityState: " + document.visibilityState);
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if (visibilityChangeEventCount == 1)
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shouldBeEqualToString("document.visibilityState", "hidden");
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else
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shouldBeEqualToString("document.visibilityState", "visible");
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});
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window.location.href = "resources/page-cache-helper.html";
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}, 0);
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}, false);
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</script>
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</body>
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</html>
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