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<?xml version="1.0"?>
<window id="293235Test"
width="600"
height="600"
onload="setTimeout(runTests, 0);"
<script type="application/javascript" src="docshell_helpers.js" />
<script type="application/javascript"><![CDATA[
var {NetUtil} = ChromeUtils.importESModule(
"resource://gre/modules/NetUtil.sys.mjs"
);
// Return the Element object for the specified element id
function $(id) { return TestWindow.getDocument().getElementById(id); }
////
// A visited link should have the :visited style applied
// to it when displayed on a page which was fetched from
// the bfcache.
//
async function runTests() {
// Register our observer to know when the link lookup is complete.
let testURI = NetUtil.newURI(getHttpUrl("bug293235_p2.html"));
let os = SpecialPowers.Services.obs;
// Load a test page containing a link that should be initially
// blue, per the :link style.
await new Promise(resolve => {
doPageNavigation({
onNavComplete: resolve,
});
});
// Now that we've been notified, we can check our link color.
// Since we can't use getComputedStyle() for this because
// getComputedStyle lies about styles that result from :visited,
// we have to take snapshots.
// First, take two reference snapshots.
var link1 = $("link1");
link1.className = "forcelink";
var refLink = await snapshotWindow(TestWindow.getWindow());
link1.className = "forcevisited";
var refVisited = await snapshotWindow(TestWindow.getWindow());
link1.className = "";
function snapshotsEqual(snap1, snap2) {
return compareSnapshots(snap1, snap2, true)[0];
}
ok(!snapshotsEqual(refLink, refVisited), "references should not match");
ok(snapshotsEqual(refLink, await snapshotWindow(TestWindow.getWindow())),
"link should initially be blue");
let observedVisit = false, observedPageShow = false;
await new Promise(resolve => {
function maybeResolve() {
ok(true, "maybe run next test? visited: " + observedVisit + " pageShow: " + observedPageShow);
if (observedVisit && observedPageShow)
resolve();
}
// Because adding visits is async, we will not be notified immediately.
let visitObserver = {
observe(aSubject, aTopic)
{
if (!testURI.equals(aSubject.QueryInterface(Ci.nsIURI))) {
return;
}
os.removeObserver(this, aTopic);
observedVisit = true;
maybeResolve();
},
};
os.addObserver(visitObserver, "uri-visit-saved");
// Load the page that the link on the previous page points to.
doPageNavigation({
uri: getHttpUrl("bug293235_p2.html"),
onNavComplete() {
observedPageShow = true;
maybeResolve();
}
});
})
// And the nodes get notified after the "uri-visit-saved" topic, so
// we need to execute soon...
await new Promise(SimpleTest.executeSoon);
// Go back, verify the original page was loaded from the bfcache,
// and verify that the link is now purple, per the
// :visited style.
await new Promise(resolve => {
doPageNavigation({
back: true,
eventsToListenFor: ["pageshow"],
expectedEvents: [ { type: "pageshow",
persisted: true,
onNavComplete: resolve,
});
})
// Now we can test the link color.
ok(snapshotsEqual(refVisited, await snapshotWindow(TestWindow.getWindow())),
"visited link should be purple");
// Tell the framework the test is finished.
finish();
}
]]></script>
<browser type="content" primary="true" flex="1" id="content" src="about:blank"/>
</window>