<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=517851 --> <head> <title>Test for Bug 517851</title> <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> </head> <body> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=517851">Mozilla Bug 517851</a> <p id="display"></p> <div id="content" style="display: none"> <iframe id="subframe"></iframe> </div> <pre id="test"> <script type="application/javascript"> /** Test for Bug 517851 **/ SimpleTest.waitForExplicitFinish(); addLoadEvent(function() { window.handledCount = 0; window.testReturnValue = false; var target = document.createElement("div"); var target2 = $("subframe").contentDocument.body; target.setAttribute("onerror", "++window.handledCount; return window.testReturnValue;"); target.setAttribute("onmouseover", "++window.handledCount; return window.testReturnValue;"); target.setAttribute("onbeforeunload", "++window.handledCount; return window.testReturnValue;"); target2.setAttribute("onbeforeunload", "++window.parent.handledCount; return window.parent.testReturnValue;"); target.setAttribute("onmousemove", "++window.handledCount; return window.testReturnValue;"); var e = document.createEvent("Event"); e.initEvent("error", true, true); window.testReturnValue = false; is(target.dispatchEvent(e), !window.testReturnValue, "error event should have reverse return value handling!"); is(handledCount, 1, "Wrong event count!"); window.testReturnValue = true; is(target.dispatchEvent(e), !window.testReturnValue, "error event should have reverse return value handling (2)!"); is(handledCount, 2, "Wrong event count!"); e = document.createEvent("MouseEvent"); e.initEvent("mouseover", true, true); window.testReturnValue = false; is(target.dispatchEvent(e), !window.testReturnValue, "mouseover event should have reverse return value handling!"); is(handledCount, 3, "Wrong event count!"); window.testReturnValue = true; is(target.dispatchEvent(e), !window.testReturnValue, "mouseover event should have reverse return value handling (2)!"); is(handledCount, 4, "Wrong event count!"); e = document.createEvent("BeforeUnloadEvent"); e.initEvent("beforeunload", true, true); window.testReturnValue = true; is(target.dispatchEvent(e), true, "beforeunload event on random element should not be prevented!"); is(handledCount, 4, "Wrong event count; handler should not have run!"); is(target2.dispatchEvent(e), false, "beforeunload event should be prevented!"); is(handledCount, 5, "Wrong event count!"); window.testReturnValue = false; is(target.dispatchEvent(e), false, "beforeunload event on random element should be prevented because the event was already cancelled!"); is(handledCount, 5, "Wrong event count; handler should not have run! (2)"); e = document.createEvent("BeforeUnloadEvent"); e.initEvent("beforeunload", true, true); window.testReturnValue = false; is(target.dispatchEvent(e), true, "beforeunload event on random element should not be prevented (2)!"); is(handledCount, 5, "Wrong event count; handler should not have run! (2)"); is(target2.dispatchEvent(e), false, "beforeunload event should be prevented (2)!"); is(handledCount, 6, "Wrong event count!"); // Create normal event for beforeunload. e = document.createEvent("Event"); e.initEvent("beforeunload", true, true); window.testReturnValue = true; is(target.dispatchEvent(e), true, "beforeunload event shouldn't be prevented (3)!"); is(handledCount, 6, "Wrong event count: handler should not have run(3)!"); is(target2.dispatchEvent(e), true, "beforeunload event shouldn't be prevented (3)!"); is(handledCount, 7, "Wrong event count!"); e = document.createEvent("MouseEvent"); e.initEvent("mousemove", true, true); window.testReturnValue = true; is(target.dispatchEvent(e), window.testReturnValue, "mousemove event shouldn't have reverse return value handling!"); is(handledCount, 8, "Wrong event count!"); window.testReturnValue = false; is(target.dispatchEvent(e), window.testReturnValue, "mousemove event shouldn't have reverse return value handling (2)!"); is(handledCount, 9, "Wrong event count!"); // Now unhook the beforeunload handler in the subframe, so we don't prompt to // unload. target2.onbeforeunload = null; SimpleTest.finish(); }); </script> </pre> </body> </html>