arc-app-launcher: Minimal support for ARC app launcher.

chrome/browser/ui/app_list/arc_app_model_builder.h

+// Copyright 2015 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_ARC_APP_MODEL_BUILDER_H_
+#define CHROME_BROWSER_UI_APP_LIST_ARC_APP_MODEL_BUILDER_H_
+
+#include <string>
+#include <vector>
+
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "chrome/browser/ui/app_list/arc_app_list_prefs.h"
+
+class AppListControllerDelegate;
+class ArcAppItem;
+class Profile;
+
+namespace app_list {
+class AppListModel;
+class AppListSyncableService;
+}
+
+// This class populates and maintains ARC apps.
+class ArcAppModelBuilder : public ArcAppListPrefs::Observer {

[Matt Giuca, 2015/11/19 09:12:35]

I wanted to take another look over this CL to see if there were any duplications
of existing code.

This class seems to be almost a complete duplicate of ExtensionAppModelBuilder.

[khmel1, 2015/11/19 17:11:41]

Hi Matt, Thank you for taking second round for this CL. I refactored as you
recommended.

+ public:
+  explicit ArcAppModelBuilder(AppListControllerDelegate* controller);
+  virtual ~ArcAppModelBuilder();
+
+  void InitializeWithService(app_list::AppListSyncableService* service,
+                             app_list::AppListModel* model);
+  void InitializeWithProfile(Profile* profile, app_list::AppListModel* model);
+
+  // ArcAppListPrefs::Observer
+  void OnAppRegistered(const std::string& app_id,
+                       const ArcAppListPrefs::AppInfo& app_info) override;
+  void OnAppReadyChanged(const std::string& app_id, bool ready) override;
+  void OnAppIconUpdated(const std::string& app_id,
+                        ui::ScaleFactor scale_factor) override;
+
+ private:
+  // Builds the model with the current profile.
+  void BuildModel();
+  // Populates the model with apps.
+  void PopulateApps();
+
+  ArcAppItem* GetArcAppItem(const std::string& item_id);
+
+  scoped_ptr<ArcAppItem> CreateApp(const std::string& app_id,
+                                   const ArcAppListPrefs::AppInfo& info);
+  void InsertApp(scoped_ptr<ArcAppItem> app);
+
+  Profile* profile_ = nullptr;
+  ArcAppListPrefs* prefs_ = nullptr;
+  AppListControllerDelegate* controller_;
+  app_list::AppListModel* model_ = nullptr;
+  app_list::AppListSyncableService* service_ = nullptr;
+
+  DISALLOW_COPY_AND_ASSIGN(ArcAppModelBuilder);
+};
+
+#endif  // CHROME_BROWSER_UI_APP_LIST_ARC_APP_MODEL_BUILDER_H_