Resubmit: Refactor external_install_ui

chrome/browser/extensions/external_install_manager.h

+// Copyright 2014 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.
+
+#ifndef CHROME_BROWSER_EXTENSIONS_EXTERNAL_INSTALL_MANAGER_H_
+#define CHROME_BROWSER_EXTENSIONS_EXTERNAL_INSTALL_MANAGER_H_
+
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/scoped_observer.h"
+#include "content/public/browser/notification_observer.h"
+#include "content/public/browser/notification_registrar.h"
+#include "extensions/browser/extension_registry_observer.h"
+
+class GlobalErrorService;
+
+namespace content {
+class BrowserContext;
+class NotificationDetails;
+class NotificationSource;
+}
+
+namespace extensions {
+class Extension;
+class ExtensionRegistry;
+class ExternalInstallError;
+
+class ExternalInstallManager : public ExtensionRegistryObserver,
+                               public content::NotificationObserver {
+ public:
+  explicit ExternalInstallManager(content::BrowserContext* browser_context);
+  virtual ~ExternalInstallManager();
+
+  // Adds a global error informing the user that an external extension was
+  // installed. If |is_new_profile| is true, then this error is from the first
+  // time our profile checked for new extensions.
+  void AddExternalInstallError(const Extension* extension, bool is_new_profile);
+
+  // Removes the global error, if one existed.
+  void RemoveExternalInstallError();
+
+  // Returns true if there is a global error for an external install.
+  bool HasExternalInstallError() const;
+
+  // Returns true if there is a global error with a bubble view for an external
+  // install. Used for testing.
+  bool HasExternalInstallBubble() const;
+
+  // Returns the current install error, if one exists.
+  const ExternalInstallError* error() { return error_.get(); }
+
+  // Returns a mutable copy of the error for testing purposes.
+  ExternalInstallError* error_for_testing() { return error_.get(); }
+
+ private:
+  // ExtensionRegistryObserver implementation.
+  virtual void OnExtensionLoaded(content::BrowserContext* browser_context,
+                                 const Extension* extension) OVERRIDE;
+
+  // content::NotificationObserver implementation.
+  virtual void Observe(int type,
+                       const content::NotificationSource& source,
+                       const content::NotificationDetails& details) OVERRIDE;
+
+  // The associated BrowserContext.
+  content::BrowserContext* browser_context_;
+
+  // The current ExternalInstallError, if one exists.
+  scoped_ptr<ExternalInstallError> error_;
+
+  content::NotificationRegistrar registrar_;
+
+  ScopedObserver<ExtensionRegistry, ExtensionRegistryObserver>
+      extension_registry_observer_;
+
+  DISALLOW_COPY_AND_ASSIGN(ExternalInstallManager);
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_EXTERNAL_INSTALL_MANAGER_H_