42 lines
993 B
HTML
42 lines
993 B
HTML
<!DOCTYPE html>
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<html>
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<body>
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<script src="../../resources/js-test-pre.js"></script>
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<script>
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description("This test checks the onvisibilitychange event handler attribute on Document.");
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var jsTestIsAsync = true;
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function makePageHidden() {
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if (window.testRunner)
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testRunner.setPageVisibility("hidden");
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}
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function checkIsPageVisible() {
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shouldBeEqualToString("document.visibilityState", "visible");
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shouldBeFalse("document.hidden");
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}
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function checkIsPageHidden() {
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shouldBeEqualToString("document.visibilityState", "hidden");
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shouldBeTrue("document.hidden");
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}
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function startTest() {
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document.onvisibilitychange = function() {
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checkIsPageHidden();
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document.onvisibilitychange = null;
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if (window.testRunner)
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testRunner.resetPageVisibility();
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finishJSTest();
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};
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checkIsPageVisible();
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makePageHidden();
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}
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startTest();
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</script>
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<script src="../../resources/js-test-post.js"></script>
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</body>
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</html>
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