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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /dom/events/scrolling/wheel-event-transactions-multiple-action-chains.html - WPT Dashboard Interop Dashboard
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="scroll_support.js"></script>
<style>
body {
margin: 0;
padding: 0;
height: 200vh;
}
#initial {
background: red;
width: 100%;
height: 25px;
padding: 0;
margin: 0;
}
#second {
background: green;
width: 100%;
height: 200vh;
padding: 0;
margin: 0;
}
</style>
<head>
<body>
<div id="initial"></div>
<div id="second"></div>
</body>
<script>
promise_test(async (t) => {
await new Promise(resolve => addEventListener("load", resolve, {once: true}));
await waitForCompositorReady();
await waitForCompositorCommit();
let firstEventTargets = [];
let secondEventTargets = [];
let isFirstGroup = true;
window.addEventListener("wheel", (e) => {
if (isFirstGroup) {
firstEventTargets.push(e.target);
} else {
secondEventTargets.push(e.target);
}
}, {passive: true});
await waitForCompositorCommit();
// The first action chain should target the initial element
await new test_driver.Actions()
.addWheel("wheel1")
.scroll(40, 2, 0, 30, {origin: "viewport"})
.send();
// Start logging event targets in the second transaction
isFirstGroup = false;
// The second chain should target the second element and the prior wheel event
// group should have no impact on this action chain.
await new test_driver.Actions()
.addWheel("wheel1")
.scroll(40, 30, 0, 30, {origin: "viewport"})
.send();
// TODO(dlrobertson): Use the scrollend event here to wait for the
// wheel scroll to finish instead of waitForAnimationEnd().
await waitForAnimationEnd(() => { return document.scrollingElement.scrollTop; });
await waitForCompositorCommit();
assert_greater_than(firstEventTargets.length, 0,
"There should be at least one event in the first transaction");
assert_greater_than(secondEventTargets.length, 0,
"There should be at least one event in the second transaction");
firstEventTargets.forEach((wheelEventTarget, i) => {
assert_equals(wheelEventTarget, initial,
"Wheel event at index `" + i + "` did not target the initial element");
});
secondEventTargets.forEach((wheelEventTarget, i) => {
assert_equals(wheelEventTarget, second,
"Wheel event at index `" + i + "` did not target the second element");
});
}, "Two separate webdriver action chains should have different wheel event transactions");
</script>
</html>