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| (Empty) | |
| 1 <html> |
| 2 <body onload='startTest()'> |
| 3 |
| 4 <script src="../../resources/js-test.js"></script> |
| 5 |
| 6 <script> |
| 7 |
| 8 // 'visibilitychange' event should bubble as defined in http://www.w3.org/TR/pag
e-visibility/#sec-processing-model |
| 9 // See: http://crbug.com/501821 |
| 10 description("This test checks that 'visibilitychange' event bubbles."); |
| 11 |
| 12 var jsTestIsAsync = true; |
| 13 |
| 14 function makePageVisible() { |
| 15 if (window.testRunner) |
| 16 testRunner.setPageVisibility("visible"); |
| 17 } |
| 18 |
| 19 function makePageHidden() { |
| 20 if (window.testRunner) |
| 21 testRunner.setPageVisibility("hidden"); |
| 22 } |
| 23 |
| 24 function checkIsPageVisible() { |
| 25 shouldBeEqualToString("document.visibilityState", "visible"); |
| 26 shouldBeFalse("document.hidden"); |
| 27 } |
| 28 |
| 29 function checkIsPageHidden() { |
| 30 shouldBeEqualToString("document.visibilityState", "hidden"); |
| 31 shouldBeTrue("document.hidden"); |
| 32 } |
| 33 |
| 34 // We will try to change the visibility states as: |
| 35 // 0 - visible. (Initial - i.e. on load). |
| 36 // 1 - hidden (should fire event and bubbles). |
| 37 // 2 - visible (should fire event and bubbles). |
| 38 var numVisibilityChanges = 0; |
| 39 |
| 40 function startTest() { |
| 41 // Document listener will be fired first |
| 42 document.addEventListener( |
| 43 "visibilitychange", onVisibilityChangeDocument, false); |
| 44 window.addEventListener( |
| 45 "visibilitychange", onVisibilityChangeWindow, false); |
| 46 checkIsPageVisible(); |
| 47 numVisibilityChanges++; |
| 48 makePageHidden(); |
| 49 } |
| 50 |
| 51 function onVisibilityChangeDocument(event) { |
| 52 shouldBeTrue("event.bubbles"); |
| 53 } |
| 54 |
| 55 function onVisibilityChangeWindow(event) { |
| 56 shouldBeTrue("event.bubbles"); |
| 57 if (numVisibilityChanges == 1) { |
| 58 numVisibilityChanges++; |
| 59 checkIsPageHidden(); |
| 60 makePageVisible(); |
| 61 } else if (numVisibilityChanges == 2) { |
| 62 finishJSTest(); |
| 63 } else { |
| 64 testFailed("Invalid number of visibility transitions"); |
| 65 finishJSTest(); |
| 66 } |
| 67 } |
| 68 |
| 69 </script> |
| 70 |
| 71 |
| 72 </body> |
| 73 </html> |
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Chromium Code Reviews
Issue 1435893003:
PageVisibility API: Ensure bubbling events are generated (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master