<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=608030 --> <head> <title>Test for MozAfterPaint pref Bug 608030</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=608030">Mozilla Bug 608030</a> <div id="display" style="width: 10em; height: 5em; background-color: red"></div> <pre id="test"> <script type="application/javascript"> /** Test for Bug 608030 **/ SimpleTest.waitForExplicitFinish(); SimpleTest.requestFlakyTimeout("untriaged"); window.addEventListener("load", step0, false); is(SpecialPowers.getBoolPref("dom.send_after_paint_to_content"), true, "pref defaults to true in mochitest harness"); function print_rect(rect) { return "(top=" + rect.top + ",left=" + rect.left + ",width=" + rect.width + ",height=" + rect.height + ")"; } function print_event(event) { var res = "boundingClientRect=" + print_rect(event.boundingClientRect); var rects = event.clientRects; for (var i = 0; i < rects.length; ++i) { res += " clientRects[" + i + "]=" + print_rect(rects[i]); } return res; } function step0(event) { // Wait until we get the MozAfterPaint following the load event // before starting. ok(true, "loaded"); window.addEventListener("MozAfterPaint", step1, false); // Ensure a MozAfterPaint event is fired div.style.backgroundColor = "yellow"; } var start; var div = document.getElementById("display"); function step1(event) { ok(true, "step1 reached: " + print_event(event)); window.removeEventListener("MozAfterPaint", step1, false); start = Date.now(); window.addEventListener("MozAfterPaint", step2, false); div.style.backgroundColor = "blue"; } function step2(event) { ok(true, "step2 reached: " + print_event(event)); window.removeEventListener("MozAfterPaint", step2, false); var end = Date.now(); var timeout = 3 * Math.max(end - start, 300); ok(true, "got MozAfterPaint (timeout for next step is " + timeout + "ms)"); // Set the pref for our second test // When there was previously another page in our window, we seem to // get duplicate events, simultaneously, so we need to register our // next listener after a zero timeout. SpecialPowers.pushPrefEnv({'set': [['dom.send_after_paint_to_content', false]]}, function() {setTimeout(step3, 0, timeout);}); } function step3(timeout) { ok(true, "step3 reached"); window.addEventListener("MozAfterPaint", failstep, false); div.style.backgroundColor = "fuchsia"; setTimeout(step4, timeout); } function failstep(event) { ok(true, "failstep reached: " + print_event(event)); ok(false, "got MozAfterPaint when we should not have"); } function step4() { ok(true, "step4 reached"); // If we didn't get the failure in failstep, // then we passed. window.removeEventListener("MozAfterPaint", failstep, false); // Set the pref back in its initial state. SpecialPowers.pushPrefEnv({'set': [['dom.send_after_paint_to_content', true]]}, SimpleTest.finish); } </script> </pre> </body> </html>