chrome/browser/ui/webui/components_ui.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_UI_WEBUI_COMPONENTS_UI_H_
   6 #define CHROME_BROWSER_UI_WEBUI_COMPONENTS_UI_H_
   7
   8 #include <string>
   9
  10 #include "components/component_updater/component_updater_service.h"
  11 #include "components/update_client/crx_update_item.h"
  12 #include "content/public/browser/web_ui_controller.h"
  13 #include "ui/base/layout.h"
  14
  15 namespace base {
  16 class RefCountedMemory;
  17 }
  18
  19 namespace user_prefs {
  20 class PrefRegistrySyncable;
  21 }
  22
  23 class ComponentsUI : public content::WebUIController,
  24                      public component_updater::ServiceObserver {
  25  public:
  26   explicit ComponentsUI(content::WebUI* web_ui);
  27   ~ComponentsUI() override;
  28
  29   static void OnDemandUpdate(const std::string& component_id);
  30
  31   static base::ListValue* LoadComponents();
  32
  33   static base::RefCountedMemory* GetFaviconResourceBytes(
  34       ui::ScaleFactor scale_factor);
  35
  36   // ServiceObserver implementation.
  37   void OnEvent(Events event, const std::string& id) override;
  38
  39  private:
  40   static base::string16 ComponentEventToString(Events event);
  41   static base::string16 ServiceStatusToString(
  42       update_client::CrxUpdateItem::State state);
  43   DISALLOW_COPY_AND_ASSIGN(ComponentsUI);
  44 };
  45
  46 #endif  // CHROME_BROWSER_UI_WEBUI_COMPONENTS_UI_H_