| <!DOCTYPE html> |
| <html> |
| <body> |
| <script src="../../resources/js-test.js"></script> |
| <script> |
| description("This test checks that the page visibility event propagation does not crash the browser when frames are added / deleted."); |
| jsTestIsAsync = true; |
| |
| let visibilityChangeEventCount = 0; |
| |
| onload = function() { |
| debug("Loaded all frames."); |
| |
| frame1 = document.getElementById("topFrame1"); |
| frame2 = document.getElementById("topFrame2"); |
| frame3 = document.getElementById("topFrame3"); |
| frame4 = document.getElementById("topFrame4"); |
| subFrame1 = frame3.contentDocument.getElementById("subIframe1"); |
| subFrame2 = frame3.contentDocument.getElementById("subIframe2"); |
| |
| document.addEventListener("visibilitychange", onMainPageVisibilityChange); |
| frame2.contentDocument.addEventListener("visibilitychange", onFrame2VisibilityChange); |
| |
| // Change the visibility of the current page to invisible. |
| if (window.testRunner) |
| testRunner.setPageVisibility("hidden"); |
| } |
| |
| function onMainPageVisibilityChange() |
| { |
| ++visibilityChangeEventCount; |
| debug("Received visibilitychange event"); |
| |
| // Delete frame 4. |
| frame4.remove(); |
| |
| // Delete subframe 2. |
| frame3.contentDocument.body.removeChild(subFrame2); |
| |
| // Add a new frame to top level. |
| frame5 = document.createElement("iframe"); |
| document.body.appendChild(frame5); |
| |
| // Add a new frame to frame2. |
| subFrame3 = frame2.contentDocument.createElement("iframe"); |
| frame2.contentDocument.body.appendChild(subFrame3); |
| |
| if (visibilityChangeEventCount == 2) |
| finishJSTest(); |
| } |
| |
| function onFrame2VisibilityChange() |
| { |
| ++visibilityChangeEventCount; |
| debug("Received visibilitychange event"); |
| |
| // Delete frame 1. |
| frame1.remove(); |
| |
| if (visibilityChangeEventCount == 2) |
| finishJSTest(); |
| } |
| |
| </script> |
| <iframe id="topFrame1"></iframe> |
| <iframe id="topFrame2"></iframe> |
| <iframe id="topFrame3" src="resources/page-visibility-iframe-delete-test-frame.html"></iframe> |
| <iframe id="topFrame4"></iframe> |
| </body> |
| </html> |
