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+<?xml version="1.0"?>
+<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
+
+<window id="293235Test"
+ xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+ width="600"
+ height="600"
+ onload="setTimeout(runTests, 0);"
+ title="bug 293235 test">
+
+ <script type="application/javascript" src= "chrome://mochikit/content/chrome-harness.js" />
+ <script type="application/javascript" src="docshell_helpers.js" />
+ <script src="chrome://mochikit/content/tests/SimpleTest/WindowSnapshot.js"></script>
+
+ <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); }
+
+ ////
+ // Generator function for test steps for bug 293235:
+ // 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({
+ uri: getHttpUrl("bug293235.html"),
+ 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, aData)
+ {
+ 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,
+ title: "Bug 293235 page1" } ],
+ 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>