text: // 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_EXTENSION_ERROR_CONTROLLER_H_
  #define CHROME_BROWSER_EXTENSIONS_EXTENSION_ERROR_CONTROLLER_H_
  
  #include <memory>
  
  #include "base/macros.h"
  #include "chrome/browser/extensions/extension_error_ui.h"
  #include "extensions/common/extension_set.h"
  
  namespace content {
  class BrowserContext;
  }
  
  namespace extensions {
  
  // The controller for the ExtensionErrorUI. This examines extensions for any
  // blacklisted or external extensions in order to notify the user with an error.
  // On acceptance, this will acknowledge the extensions.
  class ExtensionErrorController : public ExtensionErrorUI::Delegate {
   public:
    typedef ExtensionErrorUI* (*UICreateMethod)(ExtensionErrorUI::Delegate*);
  
    ExtensionErrorController(content::BrowserContext* context, bool is_first_run);
    virtual ~ExtensionErrorController();
  
    void ShowErrorIfNeeded();
  
    // Set the factory method for creating a new ExtensionErrorUI.
    static void SetUICreateMethodForTesting(UICreateMethod method);
  
   private:
    // ExtensionErrorUI::Delegate implementation:
    content::BrowserContext* GetContext() override;
    const ExtensionSet& GetExternalExtensions() override;
    const ExtensionSet& GetBlacklistedExtensions() override;
    void OnAlertDetails() override;
    void OnAlertAccept() override;
    void OnAlertClosed() override;
  
    // Find any extensions that the user should be alerted about (like blacklisted
    // extensions).
    void IdentifyAlertableExtensions();
  
    // TODO(rdevlin.cronin): We never seem to use |external_extensions_| here,
    // but we do warn about them. Investigate more.
    ExtensionSet external_extensions_;
  
    // The extensions that are blacklisted and need user approval.
    ExtensionSet blacklisted_extensions_;
  
    // The UI component of this controller.
    std::unique_ptr<ExtensionErrorUI> error_ui_;
  
    // The BrowserContext with which we are associated.
    content::BrowserContext* browser_context_;
  
    // Whether or not this is the first run. If it is, we avoid noisy errors, and
    // silently acknowledge blacklisted extensions.
    bool is_first_run_;
  
    DISALLOW_COPY_AND_ASSIGN(ExtensionErrorController);
  };
  
  }  // namespace extensions
  
  #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_ERROR_CONTROLLER_H_
  