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+<!DOCTYPE html>
+<html>
+<meta name="viewport" content="width=device-width; initial-scale=0.4">
+<title>Tests that double-tap-to-zoom never activates elements inside a scrollable container</title>
+<script src="/tests/SimpleTest/SimpleTest.js"></script>
+ <script src="/tests/SimpleTest/paint_listener.js"></script>
+<script src="apz_test_utils.js"></script>
+<script src="apz_test_native_event_utils.js"></script>
+<style>
+#scrollable {
+ height: 50vh;
+ width: 50vw;
+ background: yellow;
+ overflow: scroll;
+}
+
+#scrollabletarget {
+ height: 200vh;
+ width: 200vh;
+ background: green;
+}
+
+#scrollabletarget:active {
+ background: red;
+}
+
+</style>
+<div id="scrollable">
+ <div id="scrollabletarget">
+ </div>
+</div>
+<script>
+async function test() {
+ ok(!scrollabletarget.matches(":active"), "should not be active initially");
+
+ let rAFID = requestAnimationFrame(function ensureInactive() {
+ let isActive = scrollabletarget.matches(":active");
+ ok(!isActive, "Element activation should never happen!");
+ if (!isActive) {
+ rAFID = requestAnimationFrame(ensureInactive);
+ }
+ });
+
+ await doubleTapOn(scrollabletarget, 50, 50, false /* useTouchpad */);
+
+ cancelAnimationFrame(rAFID);
+}
+
+if (getPlatform() != "mac" && getPlatform() != "android") {
+ ok(true, "Skipping test because double-tap-zoom isn't allowed on " + getPlatform());
+ subtestDone();
+} else {
+ waitUntilApzStable()
+ .then(test)
+ .then(subtestDone, subtestFailed);
+}
+</script>
+</html>