diff options
Diffstat (limited to 'gfx/layers/apz/test/mochitest/helper_tap_default_passive.html')
-rw-r--r-- | gfx/layers/apz/test/mochitest/helper_tap_default_passive.html | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/gfx/layers/apz/test/mochitest/helper_tap_default_passive.html b/gfx/layers/apz/test/mochitest/helper_tap_default_passive.html new file mode 100644 index 0000000000..63e4d0dd46 --- /dev/null +++ b/gfx/layers/apz/test/mochitest/helper_tap_default_passive.html @@ -0,0 +1,96 @@ +<!DOCTYPE HTML> +<html> +<head> + <meta charset="utf-8"> + <meta name="viewport" content="width=device-width; initial-scale=1.0"> + <title>Ensure APZ doesn't wait for passive listeners</title> + <script type="application/javascript" src="apz_test_native_event_utils.js"></script> + <script type="application/javascript" src="apz_test_utils.js"></script> + <script src="/tests/SimpleTest/paint_listener.js"></script> + <script type="application/javascript"> + +var touchdownTime; + +async function longPressLink() { + await synthesizeNativeTouch(document.getElementById("b"), 5, 5, SpecialPowers.DOMWindowUtils.TOUCH_CONTACT, function() { + dump("Finished synthesizing touch-start, waiting for events...\n"); + }); +} + +var touchstartReceived = false; +function recordEvent(e) { + if (!touchstartReceived) { + touchstartReceived = true; + is(e.type, "touchstart", "Got a touchstart"); + e.preventDefault(); // should be a no-op because it's a passive listener + return; + } + + // If APZ decides to wait for the content response on a particular input block, + // it needs to wait until both the touchstart and touchmove event are handled + // by the main thread. In this case there is no touchmove at all, so APZ would + // end up waiting indefinitely and time out the test. The fact that we get this + // contextmenu event (mouselongtap on Windows) at all means that APZ decided + // not to wait for the content response, which is the desired behaviour, since + // the touchstart listener was registered as a passive listener. + if (getPlatform() == "windows") { + is(e.type, "mouselongtap", "Got a mouselongtap"); + } else { + is(e.type, "contextmenu", "Got a contextmenu"); + } + e.preventDefault(); + + setTimeout(async () => { + // On Windows below TOUCH_REMOVE event triggers opening a context menu, we + // need to prevent it. + const contextmenuPromise = promiseOneEvent(window, "contextmenu", event => { + event.preventDefault(); + return true; + }); + const touchendPromise = promiseOneEvent(window, "touchend", () => { + return true; + }); + + await synthesizeNativeTouch(document.getElementById("b"), 5, 5, SpecialPowers.DOMWindowUtils.TOUCH_REMOVE, function() { + dump("Finished synthesizing touch-end to clear state; finishing test...\n"); + }); + + await touchendPromise; + if (getPlatform() == "windows") { + await contextmenuPromise; + } + subtestDone(); + }, 0); +} + +function preventDefaultListener(e) { + e.preventDefault(); +} + +// Note, not passing 'passive'. +window.addEventListener("touchstart", recordEvent, { capture: true }); +window.ontouchstart = preventDefaultListener; +if (getPlatform() == "windows") { + SpecialPowers.addChromeEventListener("mouselongtap", recordEvent, true); +} else { + window.addEventListener("contextmenu", recordEvent, true); +} + +waitUntilApzStable() +.then(longPressLink); + + </script> +</head> +<body> + <a id="b" href="#">Link to nowhere</a> + <script> + document.addEventListener("touchstart", preventDefaultListener, { capture: true }); + document.ontouchstart = preventDefaultListener; + document.documentElement.addEventListener("touchstart", preventDefaultListener, { capture: true }); + document.documentElement.ontouchstart = preventDefaultListener; + document.body.addEventListener("touchstart", preventDefaultListener, { capture: true }); + document.body.ontouchstart = preventDefaultListener; + document.body.setAttribute("ontouchstart", "event.preventDefault()"); + </script> +</body> +</html> |