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