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Diffstat (limited to 'gfx/layers/apz/test/mochitest/helper_bug1506497_touch_action_fixed_on_fixed.html')
-rw-r--r-- | gfx/layers/apz/test/mochitest/helper_bug1506497_touch_action_fixed_on_fixed.html | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/gfx/layers/apz/test/mochitest/helper_bug1506497_touch_action_fixed_on_fixed.html b/gfx/layers/apz/test/mochitest/helper_bug1506497_touch_action_fixed_on_fixed.html new file mode 100644 index 0000000000..cc73fe99ea --- /dev/null +++ b/gfx/layers/apz/test/mochitest/helper_bug1506497_touch_action_fixed_on_fixed.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>Test for Bug 1506497</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 src="/tests/SimpleTest/EventUtils.js"></script> + <script type="application/javascript"> + +async function test() { + document.getElementById("overlay").addEventListener("touchstart", function(e) { + // no need to do anything here. Just having a non-passive touchstart + // listener will force APZ to wait for the main thread to handle the + // touch event. The bug is that the touch-action:none property on the + // overlay gets ignored in this case and the body gets scrolled. + }, {passive: false}); + + // Ensure that APZ gets updated hit-test info + await promiseAllPaintsDone(); + + // Register a listener that fails the test if the APZ:TransformEnd event fires, + // because this test shouldn't actually be triggering any transforms + SpecialPowers.Services.obs.addObserver(function() { + ok(false, "The test fired an unexpected APZ:TransformEnd"); + }, "APZ:TransformEnd"); + + // Listen for changes to the visual viewport offset. + let visScrEvtInternal = new EventCounter(window, "mozvisualscroll", + { mozSystemGroup: true }); + + // This promise will resolve after the main thread has processed + // all the synthesized touch events. + let promiseTouchEnd = new Promise(resolve => { + var waitForTouchEnd = function(e) { + dump("touchend listener hit\n"); + resolve(); + }; + document.documentElement.addEventListener( + "touchend", + waitForTouchEnd, + {passive: true, once: true} + ); + }); + + await synthesizeNativeTouchDrag(document.getElementById("boxOnTop"), 5, 5, 0, -50); + dump("finished drag, waiting for touchend listener..."); + await promiseTouchEnd; + + // Flush state. + await promiseApzFlushedRepaints(); + + // Check that the touch was prevented, per the touch-action + is(window.scrollY, 0, "window didn't scroll"); + is(document.scrollingElement.scrollTop, 0, "scrollingElement didn't scroll"); + visScrEvtInternal.unregister(); + is(visScrEvtInternal.count, 0, "visual viewport didn't scroll"); +} + +waitUntilApzStable() +.then(test) +.then(subtestDone, subtestFailed); + + </script> + <style> + #filler { + height: 3000px; + background-image: linear-gradient(red, blue, green); + } + #overlay { + position: fixed; + width: 100%; + height: 100%; + left: 0; + top: 0; + touch-action: none; + } + #boxOnTop { + position: fixed; + background-color: coral; + width: 20vw; + height: 20vh; + left: 40%; + top: 40%; + } + </style> +</head> +<body> + <div id="filler"></div> + <div id="overlay"> + <div id="boxOnTop">Touch here and drag up</div> + </div> +</body> +</html> |