gecko/docshell/test/chrome/bug293235_window.xul

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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(nextTest,0);"
title="bug 293235 test">
<script type="text/javascript"
src="chrome://mochikit/content/tests/SimpleTest/specialpowersAPI.js"/>
<script type="text/javascript"
src="chrome://mochikit/content/tests/SimpleTest/SpecialPowersObserverAPI.js"/>
<script type="text/javascript"
src="chrome://mochikit/content/tests/SimpleTest/ChromePowers.js"/>
<script type="application/javascript" src= "chrome://mochikit/content/chrome-harness.js" />
<script type="application/javascript" src="docshell_helpers.js" />
<script type="text/javascript" src="chrome://mochikit/content/tests/SimpleTest/WindowSnapshot.js"></script>
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<script type="application/javascript"><![CDATA[
var Ci = Components.interfaces;
var Cc = Components.classes;
Components.utils.import("resource://gre/modules/NetUtil.jsm");
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// Define the generator-iterator for the tests.
var tests = testIterator();
////
// Execute the next test in the generator function.
//
function nextTest() {
tests.next();
}
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// Return the Element object for the specified element id
function $(id) { return TestWindow.getDocument().getElementById(id); }
////
// Generator function for test steps for bug 293235:
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// A visited link should have the :visited style applied
// to it when displayed on a page which was fetched from
// the bfcache.
//
function testIterator()
{
// Register our observer to know when the link lookup is complete.
let testURI = NetUtil.newURI(getHttpUrl("bug293235_p2.html"));
let os = Cc["@mozilla.org/observer-service;1"].
getService(Ci.nsIObserverService);
const URI_VISITED_RESOLUTION_TOPIC = "visited-status-resolution";
let observer = {
notified: false,
observe: function(aSubject, aTopic, aData)
{
if (!testURI.equals(aSubject.QueryInterface(Ci.nsIURI))) {
return;
}
is(aTopic, URI_VISITED_RESOLUTION_TOPIC, "Unexpected topic");
this.notified = true;
// Cleanup after ourselves...
os.removeObserver(this, URI_VISITED_RESOLUTION_TOPIC);
},
};
os.addObserver(observer, URI_VISITED_RESOLUTION_TOPIC, false);
function notified() observer.notified;
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// Load a test page containing a link that should be initially
// blue, per the :link style.
doPageNavigation({
uri: getHttpUrl("bug293235.html"),
onNavComplete: nextTest
});
yield;
// Before we go any further, make sure our link has been notified.
waitForTrue(notified, nextTest);
yield;
// 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 = snapshotWindow(TestWindow.getWindow());
link1.className = "forcevisited";
var refVisited = 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, snapshotWindow(TestWindow.getWindow())),
"link should initially be blue");
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let observedVisit = false, observedPageShow = false;
function maybeRunNextTest() {
ok(true, "maybe run next test? visited: " + observedVisit + " pageShow: " + observedPageShow);
if (observedVisit && observedPageShow)
nextTest();
}
// Because adding visits is async, we will not be notified imemdiately.
let visitObserver = {
observe: function(aSubject, aTopic, aData)
{
if (!testURI.equals(aSubject.QueryInterface(Ci.nsIURI))) {
return;
}
os.removeObserver(this, aTopic);
observedVisit = true;
maybeRunNextTest();
},
};
os.addObserver(visitObserver, "uri-visit-saved", false);
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// Load the page that the link on the previous page points to.
doPageNavigation({
uri: getHttpUrl("bug293235_p2.html"),
onNavComplete: function() {
observedPageShow = true;
maybeRunNextTest();
}
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});
yield;
// And the nodes get notified after the "link-visited" topic, so
// we need to execute soon...
SimpleTest.executeSoon(nextTest);
yield;
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// Go back, verify the original page was loaded from the bfcache,
// and verify that the link is now purple, per the
// :visited style.
doPageNavigation({
back: true,
eventsToListenFor: ["pageshow"],
expectedEvents: [ { type: "pageshow",
persisted: true,
title: "Bug 293235 page1" } ],
onNavComplete: nextTest
});
yield;
// Now we can test the link color.
ok(snapshotsEqual(refVisited, snapshotWindow(TestWindow.getWindow())),
"visited link should be purple");
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// Tell the framework the test is finished. Include the final 'yield'
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// statement to prevent a StopIteration exception from being thrown.
finish();
yield;
}
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]]></script>
<browser type="content-primary" flex="1" id="content" src="about:blank"/>
</window>