Refactor views app list services to allow more code sharing

chrome/browser/ui/app_list/app_list_shower_views.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_UI_APP_LIST_APP_LIST_SHOWER_H_
-#define CHROME_BROWSER_UI_APP_LIST_APP_LIST_SHOWER_H_
+#ifndef CHROME_BROWSER_UI_APP_LIST_APP_LIST_SHOWER_VIEWS_H_
+#define CHROME_BROWSER_UI_APP_LIST_APP_LIST_SHOWER_VIEWS_H_
 
 #include "base/memory/scoped_ptr.h"
-#include "chrome/browser/ui/app_list/app_list.h"
-#include "chrome/browser/ui/app_list/app_list_factory.h"
 #include "ui/app_list/pagination_model.h"
 #include "ui/gfx/native_widget_types.h"
 
 namespace app_list {
-class AppListModel;
+class AppListView;
 }
 
+class AppListShowerDelegate;
 class AppListShowerUnitTest;
 class Profile;
 class ScopedKeepAlive;
 
-// Creates and shows an AppList as needed for non-Ash desktops. It is owned
-// by AppListService.
+// Creates and shows an AppList as needed for non-Ash desktops. It is owned by
+// AppListServiceViews.
 class AppListShower {
  public:
-  AppListShower(scoped_ptr<AppListFactory> factory,
-                AppListService* service);
-  ~AppListShower();
-
-  void set_can_close(bool can_close) {
-    can_close_app_list_ = can_close;
-  }
+  explicit AppListShower(AppListShowerDelegate* delegate);
+  virtual ~AppListShower();
 
   void ShowForProfile(Profile* requested_profile);
   gfx::NativeWindow GetWindow();
 
-  AppList* app_list() { return app_list_.get(); }
+  app_list::AppListView* app_list() { return app_list_; }
   Profile* profile() const { return profile_; }
 
   // Create or recreate, and initialize |app_list_| from |requested_profile|.
   void CreateViewForProfile(Profile* requested_profile);
 
   void DismissAppList();
-  void HandleViewBeingDestroyed();
-  bool IsAppListVisible() const;
+
+  // Virtual functions mocked out in tests.
+  virtual void HandleViewBeingDestroyed();
+  virtual bool IsAppListVisible() const;
   void WarmupForProfile(Profile* profile);
-  bool HasView() const;
+  virtual bool HasView() const;
+
+ protected:
+  virtual app_list::AppListView* MakeViewForCurrentProfile();
+  virtual void UpdateViewForNewProfile();
+
+  // Shows the app list, activates it, and ensures the taskbar icon is updated.
+  virtual void Show();
+  virtual void Hide();
 
  private:
   friend class ::AppListShowerUnitTest;
 
   void ResetKeepAlive();
 
-  scoped_ptr<AppListFactory> factory_;
-  scoped_ptr<ScopedKeepAlive> keep_alive_;
-  scoped_ptr<AppList> app_list_;
-  AppListService* service_;  // Weak ptr, owns this.
+  AppListShowerDelegate* delegate_;  // Weak. Owns this.
+
+  // The profile currently shown by |app_list_|.
   Profile* profile_;
-  bool can_close_app_list_;
+
+  // The view, once created. Owned by native widget.
+  app_list::AppListView* app_list_;
 
   // Used to keep the browser process alive while the app list is visible.
+  scoped_ptr<ScopedKeepAlive> keep_alive_;
+
+  bool window_icon_updated_;
+  app_list::PaginationModel pagination_model_;
 
   DISALLOW_COPY_AND_ASSIGN(AppListShower);
 };
 
-#endif  // CHROME_BROWSER_UI_APP_LIST_APP_LIST_SHOWER_H_
+#endif  // CHROME_BROWSER_UI_APP_LIST_APP_LIST_SHOWER_VIEWS_H_