Uncouple ActiveScriptController from LocationBarController

chrome/browser/extensions/location_bar_controller_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
+#include "chrome/browser/extensions/active_script_controller.h"
 #include "chrome/browser/extensions/extension_action.h"
 #include "chrome/browser/extensions/extension_action_manager.h"
 #include "chrome/browser/extensions/extension_service.h"
+#include "chrome/browser/extensions/location_bar_controller.h"
 #include "chrome/browser/extensions/tab_helper.h"
 #include "chrome/browser/extensions/test_extension_system.h"
 #include "chrome/browser/sessions/session_tab_helper.h"
 #include "chrome/test/base/chrome_render_view_host_test_harness.h"
 #include "chrome/test/base/testing_profile.h"
+#include "components/crx_file/id_util.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/extension_builder.h"
+#include "extensions/common/feature_switch.h"
 #include "extensions/common/value_builder.h"
 
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/chromeos/login/users/scoped_test_user_manager.h"
 #include "chrome/browser/chromeos/settings/cros_settings.h"
 #include "chrome/browser/chromeos/settings/device_settings_service.h"
 #endif
 
 namespace extensions {
 namespace {
 
 class LocationBarControllerUnitTest : public ChromeRenderViewHostTestHarness {
  protected:
   virtual void SetUp() OVERRIDE {
+    active_script_override_.reset(new FeatureSwitch::ScopedOverride(
+        FeatureSwitch::scripts_require_action(), true));
+
     ChromeRenderViewHostTestHarness::SetUp();
 #if defined OS_CHROMEOS
   test_user_manager_.reset(new chromeos::ScopedTestUserManager());
 #endif
     TabHelper::CreateForWebContents(web_contents());
     // Create an ExtensionService so the LocationBarController can find its
     // extensions.
     CommandLine command_line(CommandLine::NO_PROGRAM);
     Profile* profile =
         Profile::FromBrowserContext(web_contents()->GetBrowserContext());
     extension_service_ = static_cast<TestExtensionSystem*>(
         ExtensionSystem::Get(profile))->CreateExtensionService(
             &command_line, base::FilePath(), false);
   }
 
   virtual void TearDown() OVERRIDE {
 #if defined OS_CHROMEOS
     test_user_manager_.reset();
 #endif
     ChromeRenderViewHostTestHarness::TearDown();
   }
 
   int tab_id() {
     return SessionTabHelper::IdForTab(web_contents());
   }
 
+  const Extension* AddExtension(bool has_page_actions,
+                                const std::string& name) {
+    DictionaryBuilder manifest;
+    manifest.Set("name", name)
+            .Set("version", "1.0.0")
+            .Set("manifest_version", 2)
+            .Set("permissions", ListBuilder().Append("tabs"));
+    if (has_page_actions) {
+      manifest.Set("page_action", DictionaryBuilder()
+              .Set("default_title", "Hello"));
+    }
+    scoped_refptr<const Extension> extension =
+        ExtensionBuilder().SetManifest(manifest.Pass())
+                          .SetID(crx_file::id_util::GenerateId(name))
+                          .Build();
+    extension_service_->AddExtension(extension.get());
+    return extension;
+  }
+
   ExtensionService* extension_service_;
 
  private:
 #if defined OS_CHROMEOS
   chromeos::ScopedTestDeviceSettingsService test_device_settings_service_;
   chromeos::ScopedTestCrosSettings test_cros_settings_;
   scoped_ptr<chromeos::ScopedTestUserManager> test_user_manager_;
 #endif
+
+  // Since we also test that we show page actions for pending script requests,
+  // we need to enable that feature.
+  scoped_ptr<FeatureSwitch::ScopedOverride> active_script_override_;
 };
 
+// Test that the location bar gets the proper current actions.
+TEST_F(LocationBarControllerUnitTest, LocationBarDisplaysPageActions) {
+  // Load up two extensions, one with a page action and one without.
+  const Extension* page_action = AddExtension(true, "page_actions");
+  const Extension* no_action = AddExtension(false, "no_actions");
+
+  TabHelper* tab_helper = TabHelper::FromWebContents(web_contents());
+  ASSERT_TRUE(tab_helper);
+  LocationBarController* controller = tab_helper->location_bar_controller();
+  ASSERT_TRUE(controller);
+
+  // There should only be one action - the action for the extension with a
+  // page action.
+  std::vector<ExtensionAction*> current_actions =
+      controller->GetCurrentActions();
+  ASSERT_EQ(1u, current_actions.size());
+  EXPECT_EQ(page_action->id(), current_actions[0]->extension_id());
+
+  // If we request a script injection, then the location bar controller should
+  // also show a page action for that extension.
+  ActiveScriptController* active_script_controller =
+      ActiveScriptController::GetForWebContents(web_contents());
+  ASSERT_TRUE(active_script_controller);
+  active_script_controller->RequestScriptInjectionForTesting(no_action,
+                                                             base::Closure());
+  current_actions = controller->GetCurrentActions();
+  ASSERT_EQ(2u, current_actions.size());
+  // Check that each extension is present in the vector.
+  EXPECT_TRUE(current_actions[0]->extension_id() == no_action->id() ||
+              current_actions[1]->extension_id() == no_action->id());
+  EXPECT_TRUE(current_actions[0]->extension_id() == page_action->id() ||
+              current_actions[1]->extension_id() == page_action->id());
+
+  // If we request a script injection for an extension that already has a
+  // page action, only one action should be visible.
+  active_script_controller->RequestScriptInjectionForTesting(page_action,
+                                                             base::Closure());
+  current_actions = controller->GetCurrentActions();
+  ASSERT_EQ(2u, current_actions.size());
+  EXPECT_TRUE(current_actions[0]->extension_id() == no_action->id() ||
+              current_actions[1]->extension_id() == no_action->id());
+  EXPECT_TRUE(current_actions[0]->extension_id() == page_action->id() ||
+              current_actions[1]->extension_id() == page_action->id());
+
+  // Navigating away means that only page actions are shown again.
+  NavigateAndCommit(GURL("http://google.com"));
+  current_actions = controller->GetCurrentActions();
+  ASSERT_EQ(1u, current_actions.size());
+  EXPECT_EQ(page_action->id(), current_actions[0]->extension_id());
+}
+
 // Test that navigating clears all state in a page action.
 TEST_F(LocationBarControllerUnitTest, NavigationClearsState) {
-  scoped_refptr<const Extension> extension =
-      ExtensionBuilder()
-      .SetManifest(DictionaryBuilder()
-                   .Set("name", "Extension with page action")
-                   .Set("version", "1.0.0")
-                   .Set("manifest_version", 2)
-                   .Set("permissions", ListBuilder()
-                        .Append("tabs"))
-                   .Set("page_action", DictionaryBuilder()
-                        .Set("default_title", "Hello")))
-      .Build();
-  extension_service_->AddExtension(extension.get());
+  const Extension* extension = AddExtension(true, "page_actions");
 
   NavigateAndCommit(GURL("http://www.google.com"));
 
   ExtensionAction& page_action =
-      *ExtensionActionManager::Get(profile())->GetPageAction(*extension.get());
+      *ExtensionActionManager::Get(profile())->GetPageAction(*extension);
   page_action.SetTitle(tab_id(), "Goodbye");
-  page_action.SetPopupUrl(
-      tab_id(), extension->GetResourceURL("popup.html"));
+  page_action.SetPopupUrl(tab_id(), extension->GetResourceURL("popup.html"));
 
   EXPECT_EQ("Goodbye", page_action.GetTitle(tab_id()));
   EXPECT_EQ(extension->GetResourceURL("popup.html"),
             page_action.GetPopupUrl(tab_id()));
 
   // Within-page navigation should keep the settings.
   NavigateAndCommit(GURL("http://www.google.com/#hash"));
 
   EXPECT_EQ("Goodbye", page_action.GetTitle(tab_id()));
   EXPECT_EQ(extension->GetResourceURL("popup.html"),
             page_action.GetPopupUrl(tab_id()));
 
   // Should discard the settings, and go back to the defaults.
   NavigateAndCommit(GURL("http://www.yahoo.com"));
 
   EXPECT_EQ("Hello", page_action.GetTitle(tab_id()));
   EXPECT_EQ(GURL(), page_action.GetPopupUrl(tab_id()));
-};
-
-// TODO(devlin): We should really have more tests for this.
-// NavigationClearsState doesn't test at all that the LocationBarController
-// actually *returns* the proper PageActions in GetCurrentActions. Do we do
-// this elsewhere?
+}
 
 }  // namespace
 }  // namespace extensions