[Merge-M54] arc: Add support of default and OEM apps.

chrome/browser/ui/app_list/arc/arc_default_app_list.h

+// Copyright 2016 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_ARC_DEFAULT_APP_LIST_H_
+#define CHROME_BROWSER_UI_APP_LIST_ARC_ARC_DEFAULT_APP_LIST_H_
+
+#include <stdint.h>
+
+#include <map>
+#include <memory>
+#include <string>
+
+#include "base/files/file_path.h"
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+
+// Contains map of default pre-installed apps and packages.
+class ArcDefaultAppList {
+ public:
+  class Delegate {
+   public:
+    virtual void OnDefaultAppsReady() = 0;
+
+   protected:
+    virtual ~Delegate() {}
+  };
+
+  struct AppInfo {
+    AppInfo(const std::string& name,
+                   const std::string& package_name,
+                   const std::string& activity,
+                   bool oem,
+                   const base::FilePath app_path);
+    ~AppInfo();
+
+    std::string name;
+    std::string package_name;
+    std::string activity;
+    bool oem;
+    base::FilePath app_path;  // App folder that contains pre-installed icons.
+  };
+
+  // Defines App id to default AppInfo mapping.
+  using AppInfoMap = std::map<std::string, std::unique_ptr<AppInfo>>;
+
+  explicit ArcDefaultAppList(Delegate* delegate);
+  ~ArcDefaultAppList();
+
+  static void UseTestAppsDirectory();
+
+  // Returns default app info if it is found in defaults and its package is not
+  // marked as uninstalled.
+  const AppInfo* GetApp(const std::string& app_id) const;
+  // Returns true if app is found in defaults and its package is not marked as
+  // uninstalled.
+  bool HasApp(const std::string& app_id) const;
+  // Returns true if package exists in default packages list. Note it may be
+  // marked as uninstalled.
+  bool HasPackage(const std::string& package_name) const;
+  // Sets uninstalled flag for default package if it exists in default packages
+  // list.
+  void MaybeMarkPackageUninstalled(const std::string& package_name,
+                                   bool uninstalled);
+
+  const AppInfoMap& app_map() const { return apps_; }
+
+ private:
+  // Defines mapping package name to uninstalled state.
+  using PacakageMap = std::map<std::string, bool>;
+
+  // Called when default apps are read.
+  void OnAppsReady(std::unique_ptr<AppInfoMap> apps);
+
+  // Unowned pointer.
+  Delegate* const delegate_;
+
+  AppInfoMap apps_;
+  PacakageMap packages_;
+
+  base::WeakPtrFactory<ArcDefaultAppList> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(ArcDefaultAppList);
+};
+
+#endif  // CHROME_BROWSER_UI_APP_LIST_ARC_ARC_DEFAULT_APP_LIST_H_