Bug 998934 - add a showFirefoxAccounts command to the UITour. r=Unfocused

browser/modules/UITour.jsm

@@ -418,6 +418,14 @@ this.UITour = {
         this.getConfiguration(contentDocument, data.configuration, data.callbackID);
         break;
       }
+
+      case "showFirefoxAccounts": {
+        // 'signup' is the only action that makes sense currently, so we don't
+        // accept arbitrary actions just to be safe...
+        // We want to replace the current tab.
+        contentDocument.location.href = "about:accounts?action=signup";
+        break;
+      }
     }
 
     if (!this.originTabs.has(window))

browser/modules/test/browser_UITour_sync.js

@@ -35,4 +35,33 @@ let tests = [
     Services.prefs.setCharPref("services.sync.username", "uitour@tests.mozilla.org");
     gContentAPI.getConfiguration("sync", callback);
   },
+
+  // The showFirefoxAccounts API is sync related, so we test that here too...
+  function test_firefoxAccounts(done) {
+    // This test will load about:accounts, and we don't want that to hit the
+    // network.
+    Services.prefs.setCharPref("identity.fxaccounts.remote.signup.uri",
+                               "https://example.com/");
+
+    loadUITourTestPage(function(contentWindow) {
+      let tabBrowser = gBrowser.selectedTab.linkedBrowser;
+      // This command will replace the current tab - so add a load event
+      // handler which will fire when that happens.
+      tabBrowser.addEventListener("load", function onload(evt) {
+        tabBrowser.removeEventListener("load", onload, true);
+
+        ise(tabBrowser.contentDocument.location.href,
+            "about:accounts?action=signup",
+            "about:accounts should have replaced the tab");
+
+        // the iframe in about:accounts will still be loading, so we stop
+        // that before resetting the pref.
+        tabBrowser.contentDocument.location.href = "about:blank";
+        Services.prefs.clearUserPref("identity.fxaccounts.remote.signup.uri");
+        done();
+      }, true);
+
+      gContentAPI.showFirefoxAccounts();
+    });
+  },
 ];

browser/modules/test/head.js

@@ -108,7 +108,7 @@ function loadUITourTestPage(callback, host = "https://example.com/") {
   gBrowser.selectedTab = gTestTab;
 
   gTestTab.linkedBrowser.addEventListener("load", function onLoad() {
-    gTestTab.linkedBrowser.removeEventListener("load", onLoad);
+    gTestTab.linkedBrowser.removeEventListener("load", onLoad, true);
 
     gContentWindow = Components.utils.waiveXrays(gTestTab.linkedBrowser.contentDocument.defaultView);
     gContentAPI = gContentWindow.Mozilla.UITour;

browser/modules/test/uitour.js

@@ -174,4 +174,9 @@ if (typeof Mozilla == 'undefined') {
 			configuration: configName,
 		});
 	};
+
+	Mozilla.UITour.showFirefoxAccounts = function() {
+		_sendEvent('showFirefoxAccounts');
+	};
+
 })();