Bug 1501382 - Add a mochitest. r=botond

Differential Revision: https://phabricator.services.mozilla.com/D14285 --HG-- extra : moz-landing-system : lando
2018-12-12 22:58:40 +00:00 · 2018-12-12 22:58:40 +00:00 · 3071a667e4
--- a/gfx/layers/apz/test/mochitest/helper_touch_action_zero_opacity_bug1500864.html
+++ b/gfx/layers/apz/test/mochitest/helper_touch_action_zero_opacity_bug1500864.html
@ -0,0 +1,40 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width; initial-scale=1.0">
+  <title>Touch-action on a zero-opacity element</title>
+  <script type="application/javascript" src="apz_test_native_event_utils.js"></script>
+  <script type="application/javascript" src="apz_test_utils.js"></script>
+  <script type="application/javascript" src="/tests/SimpleTest/paint_listener.js"></script>
+  <script type="application/javascript">
+function* test(testDriver) {
+  var target = document.getElementById('target');
+
+  document.body.addEventListener('touchend', testDriver, { passive: true });
+
+  // drag the page up to scroll down by 50px
+  yield ok(synthesizeNativeTouchDrag(target, 10, 100, 0, -50),
+      "Synthesized native vertical drag, waiting for touch-end event...");
+
+  yield flushApzRepaints(testDriver);
+
+  is(window.scrollX, 0, "X scroll offset didn't change");
+  is(window.scrollY, 0, "Y scroll offset didn't change");
+}
+
+waitUntilApzStable()
+.then(runContinuation(test))
+.then(subtestDone);
+
+  </script>
+</head>
+<body style="border: solid 1px green">
+  <div id="spacer" style="height: 2000px">
+    Inside the black border is a zero-opacity touch-action none.
+    <div id="border" style="border: solid 1px black">
+        <div id="target" style="opacity: 0; height: 300px; touch-action: none">this text shouldn't be visible</div>
+    </div>
+  </div>
+</body>
+</html>
--- a/gfx/layers/apz/test/mochitest/test_group_touchevents-3.html
+++ b/gfx/layers/apz/test/mochitest/test_group_touchevents-3.html
@ -23,8 +23,11 @@ var subtests = [
  // Tests that touch-action CSS properties are handled in APZ without waiting
  // on the main-thread, when possible
  {'file': 'helper_touch_action_regions.html', 'prefs': touch_action_prefs},
+  // Tests that touch-action inside zero-opacity items are respected
+  {'file': 'helper_touch_action_zero_opacity_bug1500864.html', 'prefs': touch_action_prefs},

-  // Add new subtests to test_group_touch_events-4.html, not this file.
+  // Add new subtests to test_group_touchevents-4.html, not this file (exceptions
+  // may be made for quick-running tests that need the touch-action prefs)
 ];

 if (isApzEnabled()) {
--- a/gfx/layers/apz/test/mochitest/test_group_touchevents-4.html
+++ b/gfx/layers/apz/test/mochitest/test_group_touchevents-4.html
@ -10,7 +10,7 @@
  <script type="application/javascript">

 var subtests = [
-  // touch-action tests with :active::after CSS property
+  // clicking on element with :active::after CSS property
  {'file': 'helper_bug1473108.html'},
  // Add new subtests here. If this starts timing out because it's taking too
  // long, create a test_group_touchevents-5.html file. Refer to 1423011#c57