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<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>Soft navigation with multiple popstate calls.</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="resources/soft-navigation-helper.js"></script>
</head>
<body>
<main id=main>
<div>
<a id=link>Click me!</a>
</div>
</main>
<script>
// Push state 4 times, as history.back() calls will trigger popstate
// events.
history.pushState({}, "", "foobar.html");
history.pushState({}, "", "another_one.html");
history.pushState({}, "", "and_another.html");
history.pushState({}, "", "and_yet_another.html");
// This function runs at the start of the popstate event.
const eventPrepWork = t => {
// If this is an event due to the first click, go back() twice more.
if (!t.popped) {
step_timeout(()=>history.back(), 0);
step_timeout(()=>history.back(), 0);
t.popped = 0;
}
++t.popped;
// return true for the second time the event fires, which is the first
// back() triggered by the popstate event. The means that the first one
// of those back() navigations would trigger a soft navigation, but not
// the last one.
return t.popped == 2;
}
const link = document.getElementById("link");
link.addEventListener("click", () => {
history.back();
timestamps[counter]["eventEnd"] = performance.now();
});
testSoftNavigation({
addContent: () => {
// Add the content to the main element
const main = document.getElementById("main");
main.removeChild(document.getElementsByTagName("div")[0]);
const div = document.createElement("div");
const text = document.createTextNode("Lorem ipsum");
div.appendChild(text);
div.style="font-size: 3em";
main.appendChild(div);
},
link: link,
eventPrepWork: eventPrepWork,
testName: "A soft navigation that started from a back() call inside a "
+ "popstate event is recognized by SoftNavigationHeuristics",
eventType: "popstate"});
</script>
</body>
</html>
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