Bug 814264 - bug 795065 broke calling openUILink without an event parameter.

r=gavin

browser/base/content/test/Makefile.in

@@ -272,6 +272,7 @@ _BROWSER_FILES = \
                  browser_bug812562.js \
                  blockPluginVulnerableUpdatable.xml \
                  blockPluginVulnerableNoUpdate.xml \
+                 browser_utilityOverlay.js \
                  browser_social.js \
                  browser_social_toolbar.js \
                  browser_social_shareButton.js \

browser/base/content/test/browser_utilityOverlay.js

@@ -1,35 +1,62 @@
-var gTestTab;
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ *  License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-function test() {
+const gTests = [
+  test_getTopWin,
+  test_getBoolPref,
+  test_openNewTabWith,
+  test_openUILink
+];
+
+function test () {
   waitForExplicitFinish();
+  executeSoon(runNextTest);
+}
 
+function runNextTest() {
+  if (gTests.length) {
+    let testFun = gTests.shift();
+    info("Running " + testFun.name);
+    testFun()
+  }
+  else {
+    finish();
+  }
+}
+
+function test_getTopWin() {
   is(getTopWin(), window, "got top window");
+  runNextTest();
+}
+
+
+function test_getBoolPref() {
   is(getBoolPref("browser.search.openintab", false), false, "getBoolPref");
   is(getBoolPref("this.pref.doesnt.exist", true), true, "getBoolPref fallback");
   is(getBoolPref("this.pref.doesnt.exist", false), false, "getBoolPref fallback #2");
+  runNextTest();
+}
 
-
-  gTestTab = openNewTabWith("http://example.com");
-  gBrowser.selectedTab = gTestTab;
-  gTestTab.linkedBrowser.addEventListener("load", function () {
-    gTestTab.linkedBrowser.removeEventListener("load", arguments.callee, true);
-
-    is(gTestTab.linkedBrowser.currentURI.spec, "http://example.com/", "example.com loaded");
-
-    test_openUILink();
+function test_openNewTabWith() {
+  openNewTabWith("http://example.com/");
+  let tab = gBrowser.selectedTab = gBrowser.tabs[1];
+  tab.linkedBrowser.addEventListener("load", function onLoad(event) {
+    tab.linkedBrowser.removeEventListener("load", onLoad, true);
+    is(tab.linkedBrowser.currentURI.spec, "http://example.com/", "example.com loaded");
+    gBrowser.removeCurrentTab();
+    runNextTest();
   }, true);
 }
 
 function test_openUILink() {
-  gTestTab.linkedBrowser.addEventListener("load", function () {
-    gTestTab.linkedBrowser.removeEventListener("load", arguments.callee, true);
-
-    is(gTestTab.linkedBrowser.currentURI.spec, "http://example.org/", "example.org loaded");
-
-    gBrowser.removeTab(gTestTab);
-    finish();
+  let tab = gBrowser.selectedTab = gBrowser.addTab("about:blank");
+  tab.linkedBrowser.addEventListener("load", function onLoad(event) {
+    tab.linkedBrowser.removeEventListener("load", onLoad, true);
+    is(tab.linkedBrowser.currentURI.spec, "http://example.org/", "example.org loaded");
+    gBrowser.removeCurrentTab();
+    runNextTest();
   }, true);
 
-  //openUILink(url, e, ignoreButton, ignoreAlt, allowKeywordFixup, postData, referrerUrl);
-  openUILink("http://example.org"); // defaults to "current"
+  openUILink("http://example.org/"); // defaults to "current"
 }

browser/base/content/utilityOverlay.js

@@ -106,7 +106,7 @@ function openUILink(url, event, aIgnoreButton, aIgnoreAlt, aAllowThirdPartyFixup
       allowThirdPartyFixup: aAllowThirdPartyFixup,
       postData: aPostData,
       referrerURI: aReferrerURI,
-      initiatingDoc: event.target.ownerDocument
+      initiatingDoc: event ? event.target.ownerDocument : null
     };
   }
 
@@ -224,6 +224,13 @@ function openLinkIn(url, where, params) {
   var aInitiatingDoc        = params.initiatingDoc;
 
   if (where == "save") {
+    if (!aInitiatingDoc) {
+      Components.utils.reportError(
+        "OpenLinkIn has been invoked without an initiating document.\n" +
+        "This may be caused by an add-on miscalling into it, or overriding " +
+        "some utilityOverlay.js methods.  See bug 814264 for details.");
+      return;
+    }
     saveURL(url, null, null, true, null, aReferrerURI, aInitiatingDoc);
     return;
   }