michael@0: /* Any copyright is dedicated to the Public Domain.
michael@0:    http://creativecommons.org/publicdomain/zero/1.0/ */
michael@0: 
michael@0: /* Ensure that clicking the button in the Offline mode neterror page makes the browser go online. See bug 435325. */
michael@0: 
michael@0: let proxyPrefValue;
michael@0: 
michael@0: function test() {
michael@0:   waitForExplicitFinish();
michael@0: 
michael@0:   let tab = gBrowser.selectedTab = gBrowser.addTab();
michael@0: 
michael@0:   // Go offline and disable the proxy and cache, then try to load the test URL.
michael@0:   Services.io.offline = true;
michael@0: 
michael@0:   // Tests always connect to localhost, and per bug 87717, localhost is now
michael@0:   // reachable in offline mode.  To avoid this, disable any proxy.
michael@0:   proxyPrefValue = Services.prefs.getIntPref("network.proxy.type");
michael@0:   Services.prefs.setIntPref("network.proxy.type", 0);
michael@0: 
michael@0:   Services.prefs.setBoolPref("browser.cache.disk.enable", false);
michael@0:   Services.prefs.setBoolPref("browser.cache.memory.enable", false);
michael@0:   content.location = "http://example.com/";
michael@0: 
michael@0:   window.addEventListener("DOMContentLoaded", function load() {
michael@0:     if (content.location == "about:blank") {
michael@0:       info("got about:blank, which is expected once, so return");
michael@0:       return;
michael@0:     }
michael@0:     window.removeEventListener("DOMContentLoaded", load, false);
michael@0: 
michael@0:     let observer = new MutationObserver(function (mutations) {
michael@0:       for (let mutation of mutations) {
michael@0:         if (mutation.attributeName == "hasBrowserHandlers") {
michael@0:           observer.disconnect();
michael@0:           checkPage();
michael@0:           return;
michael@0:         }
michael@0:       }
michael@0:     });
michael@0:     let docElt = tab.linkedBrowser.contentDocument.documentElement;
michael@0:     observer.observe(docElt, { attributes: true });
michael@0:   }, false);
michael@0: }
michael@0: 
michael@0: function checkPage() {
michael@0:   ok(Services.io.offline, "Setting Services.io.offline to true.");
michael@0:   is(gBrowser.contentDocument.documentURI.substring(0,27),
michael@0:     "about:neterror?e=netOffline", "Loading the Offline mode neterror page.");
michael@0: 
michael@0:   // Now press the "Try Again" button
michael@0:   ok(gBrowser.contentDocument.getElementById("errorTryAgain"),
michael@0:     "The error page has got a #errorTryAgain element");
michael@0: 
michael@0:   // Re-enable the proxy so example.com is resolved to localhost, rather than
michael@0:   // the actual example.com.
michael@0:   Services.prefs.setIntPref("network.proxy.type", proxyPrefValue);
michael@0: 
michael@0:   gBrowser.contentDocument.getElementById("errorTryAgain").click();
michael@0: 
michael@0:   ok(!Services.io.offline, "After clicking the Try Again button, we're back " +
michael@0:                            "online.");
michael@0: 
michael@0:   finish();
michael@0: }
michael@0: 
michael@0: registerCleanupFunction(function() {
michael@0:   Services.prefs.setBoolPref("browser.cache.disk.enable", true);
michael@0:   Services.prefs.setBoolPref("browser.cache.memory.enable", true);
michael@0:   Services.io.offline = false;
michael@0:   gBrowser.removeCurrentTab();
michael@0: });